Để lại tin nhắn giúp mình nếu bạn cần file nghe cùa sách. Sách được chia theo 12 dơn vị bài đọc. Các chủ đề gần với đời sống được thiết kế khoa học giúp người đọc dễ nắm được bài. Ngoài ra phần từ vựng khó được chú thích và in đậm rõ ràng, các dạng bài đọc hiểu, phần từ vựng mở rộng cũng như phần tóm tắt ở cuối mỗi bài sẽ giúp bạn cải thiện được trình độ đọc của mình.
Trang 2© 2009 Compass Publishing
All rights reserved No part of this book
may be reproduced, stored in a retrieval system,
or transmitted in any form or by any means,
electronic, mechanical, photocopying, recording,
or otherwise, without prior permission
in writing from the publisher.
Acquisitions Editor: Jordan Candlewyck
Content Editor: Adam Worcester
Copy Editor: Joanna Weinhardt
Cover/Interior Design: Design Plus
email: info@compasspub.com
http://www.compasspub.com
The authors of this book would like to acknowledge the following writers for contributing materials to this series: Michael Souza, Michael Pederson, Paul Edmunds, Paula Bramante, Kandice MacDonald, Barbara Graeber, Tonia Peters and Moraig Macgillivray.
Trang 3Computers & Technology
Reading 1 : Fighting Spam / 17
Reading 2 : Using the Body for Identification / 23
Reading 1 : Campaigning for the Earth / 53
Reading 2 : Glacier Retreat / 59
Unit 6
Law & Crime
Reading 1 : The Reliability of Eyewitnesses / 65
Reading 2 : The Assumption of Innocence / 71
C o n t e n t s
Trang 4Reading 1 : Cupid and Psyche / 77
Reading 2 : The Truth About Memoirs / 83
Unit 8
Space & Exploration
Reading 1 : The Origin of the Universe / 89
Reading 2 : Space Tourism / 95
Unit 9
Sports & Fitness
Reading 1 : Extreme Sports / 101
Reading 2 : Personal Trainers: The Fitness Wave of the Future / 107
Unit 10
People & Opinions
Reading 1 : A Superlative Book / 113
Reading 2 : Mandela’s Fight Against Apartheid / 119
Unit 11
Cross-Cultural Viewpoints
Reading 1 : Differing Conceptions of Time / 125
Reading 2 : Investigating Stereotypes of Men and Women / 131
Unit 12
Business & Economics
Reading 1 : An Office Away from the Office / 137
Reading 2 : A Need for Censorship in Advertising? / 143
Trang 5Vocabulary Preview
Match each word with the correct definition.
1 extraordinary a to examine carefully
2 mysterious b a person who sees something happen
3 investigate c inexplicable; suspicious
4 lunatic d to keep secret
5 witness e unusual
6 suppress f a mentally unstable person
Pre-Reading Questions
Think about the following questions.
1 Do you know of any famous UFO sightings in your country? What
happened?
2 What do you think are some natural explanations for UFOs?
3 Is it possible there is intelligent life elsewhere in our universe
besides Earth? Why do you think so?
UFOs
Strange & Unusual 1
U N I T 1
Trang 6U FO stands for Unidentified Flying Object Although many people
associate this term with aliens or spaceships, it can pertain to any
unknown object seen in the atmosphere.
It is commonly believed that UFO sightings began in modern times, but sightings of extraordinary lights and mysterious objects in the sky have been documented for thousands of years One of the earliest sightings was in the fifteenth century BCE, in Egypt, where “foul smelling circles of fire and discs in the sky” were observed Centuries later, in 1516 CE in Nuremberg, Germany, more than
200 UFOs of differing shapes, including cylinders, spheres, and spinning discs, were observed These examples typify the thousands of sightings that have been recorded over the ages in many different cultures on various continents
The most interesting part of UFO history has been the latter half of the 20th
century During World War II, fighter pilots reported many luminescent and
cylindrical UFOs Sightings of these objects were described by both pilots and
high-ranking intelligence officials Interestingly enough, both the Allies and the
Germans recounted this At first, they both thought that these UFOs were really just new weapons made by their enemies However, when they realized that the other side was seeing them, too, they concluded that these sightings were UFOs
Both the British and Germans created committees to investigate Ultimately, it
was determined that these UFOs, nicknamed “Foo Fighters,” were not manmade;
no alternative explanations were offered
In the late 1940s, following WWII, the “flying saucer”
era began In 1947, a man named Kenneth Arnold
recounted seeing “nine silvery circular objects” in the
sky He told his story to many people, including the
press He eventually wrote a book, titled The Coming
UFOs
in World War II)
Track 1
Trang 7of the Saucers In it, he described the UFOs as flying
saucers because they were shaped like large dishes
After the book’s release, more and more people reported
UFO sightings Previously, anyone who reported a UFO
was considered a liar or a lunatic However, because
authorities were receiving countless reports, they decided to set up a committee,
called Project Blue Book, to investigate these sightings
In the 1940s, the most famous UFO case in US history, the Roswell Crash, occurred In early July of 1947, an object crashed onto a sheep ranch near
Roswell, New Mexico All the pieces of the fallen object were collected by members
of the US Air Force, stationed at Roswell Army Air Field Later in the day, the commander of the base informed the press that the remains of a “flying disc”
had been recovered This news spread worldwide in a matter of hours Strangely,
a few hours after the press release, the commanding general of the Eighth Air
Force issued a counter press release asserting that the remains were from a common
weather balloon This retraction caused a lot of controversy There were reputable
eye witnesses—including the sheep rancher and an Air Force major—who saw many items of unknown origin made of strange material They even claimed to
have caught sight of bodies of non-humanoid beings
Despite this incident and continued UFO sightings, the government disbanded
the Project Blue Book committee in 1969, due to lack of concrete evidence To this day, many people think the government is suppressing the truth of what
they collected from the Roswell Crash and of other unexplained sightings and
incidences Over the years, UFO sightings have continued to be reported by
people all over the world, including former US president Jimmy Carter, NASA engineers, and Japanese businessmen In fact, it is estimated that every three
minutes, there is a UFO sighting somewhere on the planet Though most certainly there are a number of explanations for these UFO sightings, natural or otherwise,
more research into this phenomenon is definitely needed.
Reading Time _ minutes _ seconds 629 words
Trang 8R eading Comprehension
A Mark each statement as either true (T) or false (F) according to the reading.
1 The term UFO applies only to spaceships and aliens.
2 UFOs did not appear until the latter half of the 20th century
3 Another term for UFO is “flying saucer.”
4 Project Blue Book investigates all UFO sightings.
B Choose the best answer according to the reading.
1 What did fighter pilots report seeing in World War II?
a Foul smelling circles of fire and discs in the sky
b Hovering, glowing shields
c Luminescent and cylindrical UFOs
d Silvery, circular objects
2 Why was the Roswell crash controversial?
a Because a flying disc crashed into a sheep ranch
b Because the Air Force issued two conflicting statements
c Because several eyewitnesses changed their stories
d Because people mistook a weather balloon for a UFO
3 Which of the following is NOT true?
a UFO sightings have declined in recent years
b A former US president claims to have seen a UFO
c Many UFO sightings can be explained by natural causes
d The government has disbanded Project Blue Book
C For the next two questions, look for the answers in the book and write them on the lines provided.
1 What happened in 1516 CE in Nuremberg, Germany?
2 Why did Kenneth Arnold call UFOs “flying saucers”?
Trang 9
1 Aliens are sometimes referred to as people from _.
2 Science fiction movies and books portray a wide variety of _ life
forms
3 Some people claim to have been _ by alien visitors and taken
aboard a UFO
4 _ were some of the earliest science-fiction aliens imagined by
artists and writers
5 UFOs and ghosts are examples of _ activities.
6 Many UFO enthusiasts accuse the government of a(n) _ to cover up
UFO information
abducted paranormal extraterrestrial outer space martians conspiracy
extraordinary mysterious investigate lunatics witnesses suppressing
Fill in the blanks with words from the list Use each word only once.
For centuries, 1 _ all over the world have reported seeing
2 _ objects flying in the sky Many of these UFOs have
3 _ lights and strange shapes At first, others thought people who saw
UFOs were 4 _, but the US government received so many UFO reports that it set up a special committee to 5 _ them Since then, many people have accused the government of 6 _ information about UFOs.
Trang 10A s of 2002, 72 percent of Americans believe the US
government is not telling the public everything it knows about UFOs In addition, 68 percent think the government has knowledge of extraterrestrial life (life
from other planets) and is hiding it from the public It’s not surprising there has been more and more pressure on the government to declassify its UFO records
A variety of different groups have been involved in these efforts
One of the most recent groups to become involved is CFI the Coalition for Freedom of Information John Podesta, former Chief of Staff to President
Clinton, is one of the many important people in this group The group’s aim is not
to prove the existence of extraterrestrial life, but to make it easier for scientists
in general to study unexplained aerial phenomena Podesta and his group have asked the Pentagon to declassify its UFO records and provide scientists with data that will help in the study of UFOs
CFI has requested the release of information on several UFO cases, starting with the Kecksburg, Pennsylvania, incident In 1965, a large acorn-shaped
object, about the size of a small car, crashed in a wooded area of Pennsylvania Witnesses contacted police and firefighters, but even they were not allowed to come close to the scene The United States Army was already on site and in the process of removing the object Even though several witnesses could clearly
describe the object when it was in the air, the government claimed the object was a meteorite Suspicions of the government’s claim have been raised ever since.Many groups have been formed to convince the US Government to open cases such as the Kecksburg event, yet it remains tight-lipped It has not allowed these classified records to be made public
The Truth About UFOs
Discussion
Discuss the following questions.
1 Why should citizens have access to classified government records when it
comes to possible UFO incidents?
2 Should the government have the right to protect its citizens by withholding certain
information that could be unnecessary or dangerous for the general public to know? Why or why not?
Track 2
Trang 114 glimpse d to advance in rank
5 financial e a brief look
6 uncertain f a forecast
Pre-Reading Questions
Think about the following questions.
1 If someone knew the exact date that you would die, would you want them
to tell you? Why or why not?
2 Do you believe the future can be predicted? If so, how?
3 How would knowing what’s going to happen in the future make you feel
more secure today?
An Insight into the Future
Strange & Unusual 2
U N I T 1
Trang 1210
15
20
D ivination, also called fortune-telling, is the attempt
to discover future events through unconventional methods One popular method of divination, found in both Eastern and Western culture, is palm reading Through
palm reading, a person hopes to find out his or her fate, or
future circumstances By looking at the lines on the palm of the
hand, a palm reader claims to be able to foretell a person’s life
span, financial success, or marital bliss, among other things
Although there is no proven connection between the lines on the palm of a hand and a person’s future, palm reading remains popular, along with other divination practices Some of these other practices include predicting the future through astrology (analyzing the stars and planets), tasseography (reading tea leaves) or numerology (analyzing numbers)
Fortune-telling has a long history Its earliest examples go back to 4000 BCE The divination practiced at that time, and for thousands of years after, was often engaged by kings and other rulers Both the ancient Roman and Chinese
emperors routinely consulted astrologers and other fortune-tellers on important
matters Chinese court astrologers constantly looked for signs that foretold the future, since their predictions could influence the royal court in many ways and
give them job security Divination was used to diagnose illnesses, predict what
would happen in battle, interpret dreams, and promote soldiers
One of the main reasons why divination was so important to people in the ancient world is that probably at that time humans had very little control over the
world Even those in the highest positions were still subject to natural disasters
An Insight into the Future
Track 3
Trang 13The causes of such events as plagues or storms were not clearly understood
Divination provided a sort of control over life If a person could get a glimpse of the future, that person could escape at least a little of the uncertainty that would have worried him or her constantly A farmer could plan for his future crops,
and an emperor could plan for a war with some amount of certainty that a
particular outcome was likely Since divination could not be disproved and any failure in the prediction could be blamed on the person making the prediction, believing in divination was not difficult for the people in the ancient world
Although unfounded, it is easy to understand that the practice of divination gave people in the ancient world a sense of control over their environment
However, it is a bit less evident why divination practices should still be so
popular today Humans have achieved a great amount of mastery over, if not
understanding of, the environment They are no longer at the total mercy of the natural world There does not seem to be any need for the practice of divination
to give the world a sense of order Even so, human life is still fragile People still get sick, hurt themselves, and die They still suffer from financial and emotional problems, and worry about what the future will bring them
One thing that has not changed since ancient times is that the future
remains uncertain Compared to previous ages, humans have a great amount of control over the present period With all the new technology and advances in
science, humans can predict natural disasters, giving some certainty to the
future Nonetheless, the simple fact that we do not know precisely what will
happen in the next week, month, or year lends uncertainty to our lives Since the great majority of modern people desire certainty and
security, they may try to find ways to achieve these
feelings even when there is no way to reasonably
obtain them Divination then, in all its forms,
fulfills a basic human need; the need to feel secure
Reading Time _ minutes _ seconds 621 words
Trang 14R eading Comprehension
A Mark each statement as either true (T) or false (F) according to the reading.
1 There is a proven connection between the lines on the palm of a hand
and a person’s future
2 Fortune-telling has been used by kings and emperors.
3 In ancient times, divination was likely driven by environmental
uncertainty
4 Divination is unpopular today.
B Choose the best answer according to the reading.
1 All of the following are mentioned as methods of divination EXCEPT
a Tasseography
b Crystal balls
c Palm reading
d Numerology
2 What was divination used for in ancient China?
a To promote emperors and kings
b To cast spells on enemies
c To prevent natural disasters
d To predict the outcome of battles
3 Why does the author say divination is important?
a It creates high-paying jobs for many people
b It helps us change the course of history
c It provides a sense of certainty and security
d It is a great form of family entertainment
C For the next two questions, look for the answers in the book and write them on the lines provided.
1 What is the purpose of palm reading?
2 Why was it easy for people in the ancient world to believe in divination?
Trang 15
S ummary
15
Here are six words or phrases that are related to the topic but are not in
the reading Fill in each blank with the best word or phrase from the list Use each word or phrase only once.
1 In the Bible, a person who foretold the future was called a _.
2 A _ is a Biblical word for a future prediction.
3 Many people think fortune-telling is just a _.
4 Today, many fortune-tellers make predictions using a pack of _.
5 Other fortune-tellers like to glimpse the future using a magical _.
6 _ is a Frenchman famous for making several predictions in the 16th
century about future events
tarot cards crystal ball superstition prophecy prophet Nostradamus
Fill in the blanks with phrases from the list Use each phrase only once.
Since ancient times, fortune-tellers have 1 _ using a variety of
divination methods Rulers hoped to 2 _ of the future, so they could
plan for battles, diagnose illnesses, 3 _ plagues, and promote soldiers Common ancient peoples wanted 4 _, marital bliss, and the ability
5 _ some part of their future Despite technological advances, modern
people want many of these same things Above all, they want to 6 _.
fend off get a glimpse financial gain
to control quell uncertainty made predictions
Trang 16Discuss the following questions.
1 With access to modern technology, is the practice of divination really
necessary today?
2 If you had the ability to alter your children’s genes, would you do so? Why or
why not?
G enerations past have used divination as a means of gaining answers to
the unknown This is especially true when it was used to predict the future Modern technology is so advanced that it can now trace patterns
of history and predict certain outcomes Scientific data that has been collected is used to make these predictions
We can look at a few areas where technology has advanced Many different types of divination have been used in the past to predict future health Today’s technology can track a patient’s medical history, and it can predict and diagnose patterns of health and diseases Technology can even make predictions based on children’s genes For instance, a Colorado company is selling a kit that helps parents forecast their child’s athletic ability, by testing for a gene associated with strong athletic performance
The use of weather forecasting tools is another way modern technology is replacing the practice of divination Computers have the ability to predict the types and amounts of precipitation, storms, temperatures, and pressure systems IBM is developing a service that can predict weather conditions down to a one-kilometer resolution In time, company researchers hope to be able to predict the weather on individual streets within a city
Technology continues to advance and increase as computer programs become more complex Scientists are using technology
in more specific ways to gain more knowledge about
the way nature works As for divination, what was
once considered to be supernatural is now seen more
as a form of entertainment
Track 4
Trang 17Think about the following questions.
1 Do you have an email account? What do you use it for?
2 Have you ever received unwanted or unsolicited emails? How do you
Trang 18A nyone who has ever had an email account has received spam Spam is
unsolicited email that is sent as part of a larger group of messages,
all having substantively identical content Spam has existed for a long time, but in recent years, the increasing amount of spam has become a much bigger problem than before Although there are ways to decrease spam, currently the
only way to eliminate spam is by not having an email address.
There are several types of spam: junk mail, non-commercial, offensive and pornographic, and scams, just to name a few The most common type is junk
email—mass email from legitimate businesses advertising their products
Although the emails may be legitimate, they are still unsolicited Non-commercial spam consists of messages without commercial motive, such as chain letters, urban legends, and jokes The emails require the recipient to forward the message
to friends in order to receive good fortune Offensive and pornographic spam
direct the recipient to an adult website, while spam scams are fraudulent messages designed to swindle people out of personal information for the
purposes of identity theft or criminal activities
The most obvious negative effect of spam is irritation It is very annoying to get unsolicited email However, if the only effect of spam were irritation, it would not be such a problem There are other effects of spamming Since anyone’s email can be used by spammers, it is very possible that a child may receive either
pornographic images or links to such sites on the Internet Seniors
may be cheated out of their life savings by schemes spread by spam In addition, spam may also increase the cost of Internet service Many ISPs (Internet Service Providers) have to increase their
bandwidth and server capacity to handle all
Trang 19the spam This costs more money and may result in higher fees for customers.
There are various ways for people to fight spam One way is to complain
directly to the ISP used by the spammer Most ISPs will cancel the spammer’s
account if they receive complaints However, this option is becoming less and
less practical because spammers quickly change ISPs and email addresses By
the time an ISP gets complaints about spam, the spammer has already moved on
to another one Another way is to file a complaint with the appropriate
government agency enforcing spam laws In the United States, the FTC (Federal Trade Commission) investigates all fraudulent spam email The most obvious
way to fight spam is to make sure that personal email addresses do not become publicly available Email addresses should never be placed on public websites
and should only be given out to trusted people and organizations
Spammers usually get email addresses from newsgroup postings or web-based discussion boards, so if a person wants to use either of these services, it is a good
idea to open up a free disposable email account If the account is bombarded
by spam, it can be closed and another one opened Another way is to “munge” one’s email address “Munging” is altering the email address so that it can be
read by people but cannot be collected automatically by spammers For example, catjam@home.net can be written as catjamathomedotnet or c@tj@m at home_net Although a person reading the email address can guess the right address, a
computer program will not be able to authenticate the email address Since
spammers often use software that “guesses” common email addresses, coming
up with a unique email address is another way of circumventing spammers
Finally, software that filters spam can also be used Some ISPs use filtering
methods as well However, with filtering, there is always the possibility that valid email may be removed by mistake Whatever method is used, the fact remains that until there are stronger laws against spamming and more effective ways to punish spammers, spam will continue to annoy, irritate, and
disturb
Reading Time _ minutes _ seconds 651 words
19
Trang 20R eading Comprehension
A Mark each statement as either true (T) or false (F) according to the reading.
1 Not having an email address is the only way to eliminate spam.
2 Junk email is the most common type of spam.
3 The best way to fight spam is to complain to the spammer’s ISP.
4 “Munging” an email address can help reduce spam.
B Choose the best answer according to the reading.
1 Which of the following is NOT mentioned as a type of spam?
a Ponzi schemes
b Scams
c Non-commercial
d Offensive and pornographic
2 What is the most obvious way to fight spam?
a Complain to the FTC
b Keep your email address private
c Munge your email address
d Buy a special spam filter
3 Why is spam dangerous for children?
a They could be cheated out of life savings
b It could bring them bad luck
c They could receive pornographic images
d It could steal their identity
C For the next two questions, look for the answers in the book and write them on the lines provided.
1 What is non-commercial spam?
2 Why is a disposable email account a good idea?
Trang 21
S ummary
21
Here are six words or phrases that are related to the topic but are not in
the reading Fill in each blank with the best word or phrase from the list Use each word or phrase only once.
1 People who want to avoid spam can _ of receiving certain types of
2 Spam email might contain a(n) _ that could disable your computer.
3 _ is a type of spam scam that directs recipients to a fake homepage
of a real organization, such as a bank
4 Most spam is sent to thousands of users at once as electronic _.
5 It’s often easy to identify spam email by looking at the tag in the _.
6 Many email programs come with a provision that allows the user to
_ spam emails
virus subject line phishing block bulk mail opt out
A Dear recipient: Forward this email to ten friends, and something good will
happen to you today
B Is your job irritating you? Relax! Marissa’s Massage Parlor is now open! Come in
for a discounted massage
C Congratulations! You’ve just won $100,000 in the British lottery!
D Please send us your bank account and credit card numbers.
E Try Wong’s famous Won Ton today
F You must send this identical message to three friends, or the chain will be broken,
and you will be cheated out of your chance to have good luck
Fill in the blanks in the table with the sentences below according to the
category they belong to Use each sentence only once.
Types of SpamJunk Mail Non-commercial Scam
Trang 22T he reason for spamming is to make money, but ironically,
most people seem to hate spam and usually delete it without reading it Thus, it is hard to see how spamming could prove profitable There is a difference, however, between
the companies who advertise with spam and the people who do
the actual spamming; the company is less likely to make money
than the spammer
For example, a business that wants to advertise its products
or services with spam might be inexperienced, so it will typically contract with a
“professional” spammer to do the work for them Spammers usually charge a lot
of money for their services, perhaps $375 to spam 500,000 addresses Because spammers do not need much money to work—only a dialup Internet account, a program to send spam, and a list of email addresses—they will almost always make a profit, whether the company that hired them does or not
The people who write spam-sending software may not be spammers themselves, but their software makes it very easy to send spam The software is simple and easy to write, and it sells for exorbitant fees One well-known
spam-sending program costs almost $300, which is much more than the time and effort spent designing such a program would usually merit
Spammers can also make money individually by defrauding the people who receive their spam A common ruse is to promise some product or service for a very low price, but then refuse to deliver it after the customer has paid for it Clearly, such types of spammers are not good citizens, and honest companies should not become involved with them If they do, they can lose not only money but also loyal customers In cases like these, only the spammers profit
The Problem with Spammers
Discussion
Discuss the following questions.
1 In your view, is spamming an effective way for businesses to advertise?
Why or why not?
2 What role, if any, do you think the government should take to protect
people against illegal spammers?
Track 6
Trang 23Vocabulary Preview
Match each word with the correct definition.
1 advocacy a to examine with a critical eye
2 scanner b a slight, difficult-to-notice feature
3 scrutinize c danger; risk
4 mimic d a device used to examine minute details
5 subtlety e to imitate
6 jeopardy f the act of supporting a cause
Pre-Reading Questions
Think about the following questions.
1 Do you know of anyone who has been a victim of identity theft?
2 How safe do you feel when you shop online or travel on an airplane?
3 What are some pros and cons of using parts of the body as identification?
Using the Body for Identification
Computers & Technology 2
U N I T 2
Trang 24T echnological advances have undoubtedly changed the
way we engage in commerce and travel, as well as the way we live our lives The Internet allows us to shop from locations all over the globe without ever showing our faces
or even talking to another person We can buy and sell stocks
online and move enormous amounts of money from one bank
account to another at the touch of a button Worldwide travel is
commonplace with people crossing borders on a regular basis
In short, the world is more accessible than it has ever been, but at a cost How secure are our online transactions? With so many people crossing borders every day, how do we know we’re not letting dangerous people into our country? Improving security is a top issue for many governments and consumer advocacy
groups around the world Biometric identification technology is being
developed to recognize individuals, both to protect their own interests and to identify criminals
Biometric identification is not a new phenomenon Fingerprints are the
classic biometric identifier Police dust a crime scene for fingerprints and then compare their findings to a database of fingerprints of known criminals or to fingerprints of a known suspect But fingerprints can also be used for security
A fingerprint scanner can be used to grant personnel access to certain areas
Physiological biometrics, such as fingerprints, utilize people’s physical
characteristics to identify or recognize them Other examples include face, palm,
and iris identification Scanning these physical features ensures that the person
being scanned is who he or she claims to be Unlike a personal identification number, which is used to access bank accounts, biometric identifiers cannot be stolen and then used by a thief
Behavioral biometrics can also be used to identify people Certain behaviors
Using the Body for Identification
a living thing
Trang 25as something real
are unique to individuals, such as their voices or the way they type The classic
behavioral biometric is the signature Signatures are used as a guarantee, but
with obvious problems Signatures can be copied, for one thing Also, people
don’t usually scrutinize a signature until a problem is apparent A person’s voice might be more difficult to mimic In fact, voice recognition systems do more
than just recognize the voice; they recognize the way a person talks There are
subtleties in the way a person speaks that would be very difficult to imitate
Typing patterns, likewise, would be very difficult to observe to the point of
mimicking them
Biometric identification has two potential uses—identification and identity
verification Identification occurs when biometric information is used to
discover the identity of the person it belongs to Again,
fingerprints at a crime scene would be an example
Identity verification is the process of making sure a
person is who he or she claims to be Today, we use
passports to verify our identity when crossing borders
However, passports can be stolen or forged, while an effective biometric
identification system would be difficult to fool It would be much more difficult
to forge a fingerprint or an iris than it would be to forge a passport
There are also ethical considerations in developing biometric identification
technology It has the potential to protect consumers when engaging in trade as well
as to identify would-be criminals before they can do any harm However, some
worry that individuals’ privacy would be in jeopardy if personal information
were to get into the wrong hands Another danger is that personal information could be abused by authorities When governments have access to people’s
personal information, they can use it to control the population It goes without saying that people’s freedom and right to privacy will have to be protected as
technology advances
Reading Time _ minutes _ seconds 607 words
Trang 26R eading Comprehension
A Mark each statement as either true (T) or false (F) according to the reading.
1 Biometric identification is brand new.
2 Physiological biometrics can identify people by the way they type.
3 It is difficult to mimic the way a person speaks.
4 Biometric identification can be used to verify identity.
B Choose the best answer according to the reading.
1 All of the following are examples of physiological biometrics EXCEPT
c To attack other countries
d To buy and sell stocks
3 What is identity verification?
a Using a signature as a guarantee
b Discovering who a fingerprint belongs to
c Watching how a person behaves
d Making sure people are who they claim to be
C For the next two questions, look for the answers in the book and write them on the lines provided.
1 Why are biometric identifiers better than personal identification numbers?
2 What are two potential uses of biometric identification?
Trang 27
S ummary
27
Here are six words or phrases that are related to the topic but are not in
the reading Fill in each blank with the best word or phrase from the list Use each word or phrase only once.
1 Young people often use a _, such as a driver’s license, which makes
them appear older
2 One day, people might be identified by a computer _ implanted
in their skin
3 Identity theft helps a thief _ someone else.
4 Most countries use a(n) _ to ensure that identity cards and money
are genuine
5 Biometric identification can help guard countries against _.
6 Criminals can pass through airports using _ identification.
terrorism impersonate chip fake ID holograph counterfeit
First Sentence: Biometric identification technology is being developed to recognize
individuals
A Biometric identification, such as fingerprint scanners, can help protect citizens
and capture criminals
B Police have used fingerprints as a basic technique to identify criminals for hundreds
of years
C Voice recognition systems scrutinize a person’s voice and speech patterns, which
contain subtleties that are difficult to mimic
D Biometric identification includes both physiological identifiers, like fingerprints,
and behavioral identifier like signatures
E Governments frequently abuse this type of identification to control their citizenry
and to deny rights to foreigners
F Advocacy groups are concerned that biometric identification will put individual
privacy rights in jeopardy
Directions: An introductory sentence for a brief summary of the passage is provided
below Select THREE answer choices to complete the summary
Trang 28Discuss the following questions.
1 When should a government’s right to protect its citizens take priority
over a citizen’s right to privacy?
2 Do you think people have a right to privacy when they are in public
places, such as parks and sporting events?
W e generally recognize people by their faces, or
photos, which are typically unique to individuals
However, this type of identification can be faulty
People’s appearance changes, and we do not tend to scrutinize
photos very closely Today, biometric technology is being
developed to perfect the process of facial identification Face recognition technology can scan the face for certain features and measure the distances between different parts of the face These things do not change, so growing a beard or wearing glasses will not fool the scanner Since it is very difficult to mimic another person’s face, this type of identification is quite reliable
Facial recognition presents a risk of invasion of people’s privacy Face scanners can be placed in public places, and people’s images can be scanned without their knowledge This allows their movements to be tracked and can also give criminals information that will help them victimize people
On the other hand, security can be improved by using face scanners in public places For example, at a large sporting event, cameras can be used to monitor the crowds, secretly capturing images of individuals These images can then be compared to photos of known terrorists If a match comes up, the terrorist can
be located and removed from the premises before he or she can do any harm One problem with this idea is that the accuracy of face scanners diminishes when they are tracking people in large crowds Because the people aren’t posing, the angle may be off This increases the chances of false positives, putting people’s rights in jeopardy
Track 8
Trang 29Vocabulary Preview
Match each word with the correct definition.
1 sophisticated a highly specialized
2 fatal b a particular way of accomplishing something
3 susceptible c deadly
4 procedure d to kill
5 replicate e to copy or duplicate
6 slaughter f vulnerable; capable of being affected
Pre-Reading Questions
Think about the following questions.
1 Have you ever heard of anyone whose life has been saved by an organ
transplant?
2 How would you feel if a friend or family member received an animal’s
organ to help them live?
3 Is it right to raise animals to kill so that humans can live?
Xenotransplantation
Health & Medicine 1
U N I T 3
Trang 30O rgan transplants have saved millions of lives around the world
Over the years, transplants have become much more sophisticated and now have a very high success rate The problem is that it is difficult to find organs People can be on waiting lists for years before receiving their much-needed organ, and many die while waiting
The problem is getting worse, as the demand is increasing while supply is decreasing The reason for this trend is that the population is getting bigger while accidental deaths are decreasing Most organ donors are victims of car crashes; they were healthy people with healthy organs who were unfortunately
killed As safety standards improve and as law enforcement more effectively
deters dangerous driving, fewer people are dying in car crashes This is, of course, a positive development, except that it decreases the number of healthy organs available to those who need them So the medical community is now looking to the animal kingdom for organs that can be used in humans
No doctor to date has successfully performed an animal-to-human organ
transplant, known as xenotransplantation The first major concern is the possibility that the human’s immune system will reject the organ The human
immune system is programmed to reject and attack foreign bodies in order to keep the body healthy Rejection was a problem in the early days of human-to-human organ transplants as well But over the years anti-rejection medicines have been developed with tremendous success These drugs probably will not work by themselves when the organ of a different
species is introduced, so further measures need to
be taken Genetic Modification of the organ
seems to be one way to reduce the risk of organ
rejection For example, pigs, which are the ideal
Xenotransplantation
species than the recipient
Track 9
Trang 31molecules to enter
candidate for xenotransplantation, have a gene called alpha-gal,
which can be modified to trick the human immune system into
recognizing it as human The procedure has shown success in
pig-to-monkey transplants, which makes it promising for humans
After having altered the gene, scientists could then clone the pigs
with the altered gene and eventually breed them conventionally
Pigs breed quickly and have large litters, so a large supply of organs
ready for transplants could be produced this way
A second concern is the possibility that the donor organ could contain viruses that would infect the human body Anti-rejection drugs, which would have to be used post-operation to ensure that the body continues to accept the new organ, suppress the immune system This makes the person more susceptible to infection Pigs’ DNA contains a virus that is harmless to pigs but could prove fatal to humans Fortunately, scientists have identified a type of pig that does not carry this virus
as part of its DNA Scientists are also working on ways to prevent the virus from
replicating by identifying the receptors that allow the virus to enter a cell
Another animal that seems likely to be a candidate for xenotransplantation
is the baboon because it is genetically very similar to humans This decreases the likelihood of rejection In fact, baboon-to-human transplants have been attempted, without success The patients died of virus infections, however, and not because the
body rejected the foreign tissue The main problem with baboon organs is that
they carry many viruses Furthermore, unlike pigs, baboons reproduce slowly, like humans They do not have large litters, so it would be difficult to breed the numbers of baboons that would be necessary to meet the demand for organ
transplants Another advantage of using pigs is that they do not pose the moral dilemma that baboons do Of course, some animal activists will argue that it is always wrong to kill an animal for the benefit of humans But given that pigs are already raised for slaughter, the idea of using them to save human lives will not present a new ethical issue
Reading Time _ minutes _ seconds 653 words
Trang 32R eading Comprehension
A Mark each statement as either true (T) or false (F) according to the reading.
1 It is often difficult to find organs for transplants.
2 Most organ donors die from heart attacks.
3 There have been several successful animal-to-human organ
transplants
4 Baboons are genetically similar to humans.
B Choose the best answer according to the reading.
1 Which of the following is true of organ transplants?
a They are not very sophisticated
b They do not help save lives
c They are usually successful
d They are very common
2 What is the first major concern about xenotransplantation?
a Virus infection
b Organ rejection
c Gene alteration
d Moral dilemma
3 What is the main problem with baboon organs?
a They reproduce slowly
b Human bodies reject them
c They have lots of viruses
d Activists object to using them
C For the next two questions, look for the answers in the book and write them on the lines provided.
1 What makes pigs the ideal candidates for xenotransplantation?
2 Why is it an advantage that baboons and humans are genetically similar?
Trang 33
S ummary
33
Here are six words or phrases that are related to the topic but are not in
the reading Fill in each blank with the best words or phrases from the
list Use each word or phrase only once.
1 People who advocate for _ believe that animals should not be killed
for human research
2 Organ transplants require a(n) _.
3 Someone who has had a heart attack might need open-heart _.
4 One organ for which there is a great need for donors is the _.
5 A(n) _ is a specialized doctor who performs operations.
6 People waiting for organ transplants put their names on a national list, called
a(n) _
operation surgery surgeon animal rights kidney registry
sophisticated fatal susceptible procedure replicating slaughter
Fill in the blanks with words from the list Use each word only once.
Organ transplants have become more 1 _ as technology has
improved Today, scientists are on the verge of successful xenotransplantation—the
transplant of animal organs into human bodies Pigs are good candidates for this
2 _ because some of them do not have a common virus that usually
proves 3 _ to humans Also, since pigs are typically raised for
4 _ , most people do not mind killing them to save human lives Still,
xenotransplantation is tricky because of viruses and because animal organs are
5 _ to rejection by human bodies Scientists continue to work on ways
to keep harmful viruses from 6 _ after transplants
Trang 34Discuss the following questions.
1 What do you think of destroying embryos for use in stem-cell research?
2 What types of diseases would you like to see a cure developed for? Why?
S tem cells are cells that can replicate themselves In
newly fertilized eggs, they create the different tissues that make up the human body, including the organs, bones, muscles, and skin Embryonic stems cells, derived from
embryos, develop into various tissues, while adult stem cells help repair tissues once the body has been formed
Stem cell research promises hope to thousands of people in failing health because stem cells could be used to create therapies for people with serious diseases and debilitating injuries But despite the potential health benefits, stem cell research is a hotly debated topic
Embryonic stem cells seem to hold the most potential for therapy, but to use embryonic stem cells, the embryo has to be destroyed Some believe that it is wrong to intentionally destroy a human embryo, because it is a human being Proponents of stem cell research, however, say that these embryos are being destroyed anyway Most embryos for research come from those used in in-vitro fertilization, wherein there are often extra embryos that are destroyed or frozen indefinitely, but never used
The main argument in favor of stem cell research is its potential value If it saves thousands of people, it is worth the cost of the embryos, proponents claim But opponents counter that adult stem cells can be just as effective in creating therapies Perhaps the answer lies in obtaining stem cells from embryos without destroying the embryo, a technique that is being studied However, the use of embryos for research is currently banned in many countries, making progress difficult
Track 10
Trang 35Vocabulary Preview
Match each word with its correct definition.
1 temporarily a able to buy
2 participant b a ten-year period
3 competitive c approval
4 affordable d a person who takes part in something
5 decade e trying hard to be more successful than others
6 acceptance f for a limited time
Pre-Reading Questions
Think about the following questions.
1 Do you know of anyone who has ever had surgery to alter their
appearance? How well did it work?
2 Should people have surgery simply to improve their looks? Why or why not?
3 If you could change one thing about your body, what would it be and
Trang 36A Surge in Cosmetic Surgery
A ccording to statistics gathered by the American Society for Aesthetic
Plastic Surgery, 11.7 million cosmetic surgical and nonsurgical procedures were performed in the United States in 2007 Americans spent just over $13 billion on cosmetic procedures—$8.3 billion for surgical procedures and $4.7 billion for nonsurgical procedures Since 1997, the overall number of cosmetic procedures has increased 457 percent The top three surgical procedures
for women were breast enlargement, liposuction, and eyelid surgery, while
the top three surgical procedures for men were liposuction, eyelid surgery, and rhinoplasty (nose surgery)
Liposuction is the removal of excess fat deposits from beneath the skin The
doctor inserts a cannula (a small tube) into the skin, and a vacuum-like machine removes the fat People are usually given general anesthesia for liposuction or
local anesthesia if they’re only having one area done Many doctors insist that liposuction is not a cure for obesity It should be used when diet and exercise do not reduce fat in certain “trouble spots” of the body That is why the ideal candidate is physically fit, exercises regularly, and is not more than twenty pounds overweight Liposuction can cost from $2,000 to more than $10,000, depending on the number of areas treated, the type of area treated (body site), and the amount of fat to be removed from those areas The procedure may be performed on the
abdomen, hips, thighs, calves, arms, buttocks, back, neck,
or face
In addition to the three most popular surgical procedures, the number-one nonsurgical procedure favored by both women and men is Botox injections Botox is a drug made from a toxin produced by the same bacteria that causes botulism (food poisoning) The Botox injections
Trang 37temporarily freeze the muscles that cause wrinkles, giving the
skin a smoother look for about four months The injections
are becoming increasingly popular, and some people even
throw “Botox parties.” The party is a social gathering at
which a doctor injects the participants with Botox These
injections can cost anywhere from $300 to $1,000 per shot
In 2007, 2,445,656 women and 329,519 men had Botox
injections
There are many reasons why the number of cosmetic surgeries is increasing
As the Baby Boomer generation ages, its desire to look younger is increasing
the demand for all cosmetic surgeries Baby Boomers think that looking younger will keep them more competitive in the workplace, too With improvements in
medicine and technology, surgeons can perform procedures with less scarring
in a shorter amount of time, which makes these operations more appealing
Many customers are also becoming better informed about the procedures
and precautions they must take before having cosmetic surgery, which leads to
better and safer results for cosmetic surgeries These precautions include making
sure that their doctor is a board-certified surgeon There are many websites
where the public can get information about plastic surgery, including risks, lists
of board-certified surgeons, as well as before-and-after photos of people who
have had surgery, which increases people’s confidence in the procedures
Another reason for the increase in cosmetic surgeries is that they are
becoming more affordable Costs have decreased somewhat over the past
decade Doctors have also become smarter with their business Many now offer financing for people who want surgeries but cannot afford to pay all of the
money up front
Finally, social acceptance of cosmetic surgery is also growing In a recent
survey, approximately 55 percent of Americans said that they approve of the
procedure About 79 percent of U.S men and women would not feel embarrassed if their friends and family knew that they had cosmetic surgery
Reading Time _ minutes _ seconds 610 words
Trang 38R eading Comprehension
A Mark each statement as either true (T) or false (F) according to the reading.
1 Since 1997, the number of cosmetic procedures has increased 47 percent.
2 Liposuction was the most popular cosmetic surgery for both men and
women
3 Botox injections cost $2,000 to $10,000 per shot.
4 Costs for cosmetic surgeries have increased somewhat over the past ten
years
B Choose the best answer according to the reading.
1 What do doctors say about liposuction?
a It is not a cure for obesity
b It should be the first option to reduce fat
c It removes excess fat beneath the skin
d It is only for those more than 20 pounds overweight
2 How long do the effects of Botox injections last?
a For a lifetime
b For forty days
c For four months
d For fourteen years
3 What is one reason for the increase in cosmetic surgeries?
a They are free for those who can’t afford them
b Doctors recommend them for nearly all patients
c Scars are now considered a type of fashion
d They have become more socially acceptable
C For the next two questions, look for the answers in the book and write them on the lines provided.
1 When should liposuction be used?
2 What is making cosmetic surgeries more appealing?
Trang 39
S ummary
39
Here are six words or phrases that are related to the topic but are not in
the reading Fill in each blank with the best word or phrase from the list Use each word or phrase only once.
1 A recent _ showed that 89 percent of the respondents wish they
made more money
2 Many accuse people who have cosmetic surgery of being _.
3 Some say cosmetic surgery should be used only for people who are
_
4 A _ is used to administer an injection.
5 “Your face would look better if you had a _,” he told her.
6 “Physical beauty is only _,” she said.
nose job vain disfigured superficial syringe poll
First Sentence: The number of cosmetic surgeries in the United States has
increased by more than 400 percent in the past decade
A Liposuction and Botox injections are two of the most popular kinds of cosmetic
procedures for both women and men
B Baby Boomers, who want to look younger and be more competitive at work, are
increasing the number of participants for all types of cosmetic surgeries
C The cost of liposuction ranges from $2,000 to more than $10,000, depending on
the number and types of areas treated
D Cosmetic surgery has become more affordable and safer over the past decade,
causing much less scarring than when it first began
E In 2007, almost 2.5 million women and nearly 330,000 men had Botox
injections, which temporarily smooth wrinkles, often at special parties
F Social acceptance has also risen, with nearly 55 percent of Americans saying they
approve of plastic surgery
Directions: An introductory sentence for a brief summary of the passage is provided
below Select THREE answer choices to complete the summary
Trang 40Discuss the following questions.
1 Why do you think people choose to volunteer time, sacrifice money, and
travel thousands of miles to help others?
2 What’s a fair way to decide who qualifies for free medical treatment and
who doesn’t?
P lastic surgery can be helpful for correcting birth defects in children An
organization called Operation Smile provides reconstructive plastic surgery to poor children all over the world Reconstructive surgery is performed on abnormal parts of the body caused by birth defects, developmental abnormalities, injury, infection, tumors, or disease The surgery is generally performed to improve function but may also be done to give a child a normal appearance
Operation Smile provides children born with cleft lips, cleft palates, and other facial deformities with free reconstructive surgeries Doctors and nurses from around the world volunteer their time for two weeks on a medical mission During a typical international medical mission, 300-500 children receive full medical assessments, and 100-150 children are surgically treated
This organization was founded in 1982 by Dr William Magee Jr., an American plastic surgeon, and his wife, Kathleen Magee, a nurse and clinical social worker The couple traveled to the Philippines with a group of medical volunteers to repair children’s cleft lips and cleft palates The Magees saw the need, and Operation Smile was born The goal of the charity is to improve the lives of children by improving their appearance, building up their self-esteem, and restoring their dignity
Since 1982, more than 120,000 children and young adults with facial deformities have been treated by thousands of volunteers
worldwide In addition, thousands of medical professionals
have been trained globally Operation Smile currently has a
presence in fifty countries and has nearly 4,000 credentialed
medical volunteers ready to donate their time and talent
Track 12