The shark is a meat-eating fish and one of the most feared animals of the sea.
Scientists (1) about 259 species of ,fish as sharks. These fish live in
ã oceans throughout the world, but they are (2) common in warm seas.
Sharks Vary greatly in (3) and habits. Whale sharks, the- largest kind of shark, may grow 60 feet long. A whale shark ( 4) J---- up to 15 tons more than _twice ( 5) much as an African elephant. The smallest sharks may measure only 4 inc?es ( 6) and weigh less than I ounce. Some kinds of sharks live in the depths of the ocean, but others are (7) near the surface. Some species live in coastal waters, but others dwell far out at sea.
A (8) species can even live in fresh water. All sharks are carnivores (meat-eaters). Most of them eat live fish (9) other sharks. A shark's only natural enemy is a larger shark. Sharks eat ( I 0) prey whole, or they tear off large chunks of flesh. They also feed on dead of dying anim�ls.
V. Giveadvice to these people� Use I think ... should or I don't think ... should.
, E.g.: My hair is too long. (get it cut) I think you should get it cut.
1. Nga has gota very bad cold. (go to bed)
2., Jenny and Tonny are only sixteen, b�t they say they want to get married.
(get married)
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3. I've ãlost checkbook and credit card. (phone your bank)
4. Mr. Phong wants to drive ho�e, but he hasn't goth�s'glasses. (drive) 5. My tooth hurts. (go. to the dentist)
6. There is a hole in my shoe. I only bought them last week! (take them:back to the shop)
7. Ann's phone bill was enormous! $300! (check the bill with the phone company)
8. My children spend all their pocket money on sweets. (spend it all on sweets)
9. Mai's crying because I-pushed her. It was an accident. (apologize to her) 10. Mary would like to make some new friends. (join some clubs)
VI. Five sentences have been removed from the article below. Cboose'from the sentences A-F the one which fits each gap. There is an .unnecessary. . .
sentence.
UNDERWATER WORLD
If you want to_ dive in clear blue waters, find rich marine life and swim over the remains thrown away-by ancient sailors, the tiny island of Ustica. is the place to go. This island; 60km from the Italian coast, is the, site of Europeã's only underwater museum. (l) ___ _
.The clear waters attract some of the world's best underwater divers. The International Academy of Underwater Sciences, which was set up to encourage underwater exploration, is based in Ustica. (2) _____ .
Dr Honor Frost, a British underwater archaeologist and Golden Trident winner, believes that Ustica shows that some underwater remains are best left in the surroundings where they have been preserved for centuries. (3) ___ _
According to Frost, the establishment of the underwater museu:in has made an interesting area of sea floor, together with the objects which fell to it in antiquity, safe for future study. ( 4)
The charm of Ustica's underwater world, though, is not only in itsã historical objects .. The sea of Ustica, as far as five kilometers from the coast, is considered
'
to possess Italy's best underwater reserves, as well as some of the clearest waters in the Mediterranean. (5) . You dive into a world of wonderful archaeological remains and fantastic colours: bright coral, an astonishing variety of seaweeds and colonies of sponges.
A. Many questions remain to b� answered about the museum site.
B. Above these, within �5 metres ofthe surface, divers can see octopus and all kinds of fish.
C. This excellent visibility - often up to 20 metres - makes it a great place for underwater photography.
D. This gives divers the experience of underwat�r archaeology with�ut disturbing important sites.
E. This month it ã presented its G�lden Trident awards, the underwater equivalent of the Nobel prizes, which have been awarded annually since 1960.
F. Only here can diversã explore, labeled exhibits such as anchors, pots and millstones, which fell to the sea floor centuries ago.
VII. Each sentence below contains. an error. Underline it and write the correct answer in the space provided.
1. I wouldn ;t mind living in Alaska if the weather �ould 1.
be better.
2. Sperm whales are the most . bigge.r animals that have 2.
ãã�.,ã��
teeth on earth.
3. ã The smallest dolphin is . about 50 kilograms in weight 3.
and 1.5 metres in tc;mg.
4. Were I_tC> have a ship, I will travel around the oceans on 4.
earth.
5. I'm feeling sick. I shouldn't eat so much chocolate. 5.
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VIII. Read the passage below and choose one correct answer for each question.
The whale is the largest mammal in the world. Since the Whale is shaped like a fish, why is it still considered a mamnial? The fact is that the whale did live on land a very long time ago. However, during its thousand of years of living in water, the whale gradually become structured like a fish. Thus, the whale has adapted to marine }ife. Nevertheless,. though the whale resembles the fish externally, it still has the characteristics of a mammal.
One important difference between the whale and a fish is that the baby whale is born alive. It is not hatched from an egg. Furthermore, the baby whaJ'e is fed on its mother's milkjust like other mammals.
Unlike other sea creatures, the whale is a warm blooded �imal. It keeps itself warm in the cold water with a layer of blubber. 'Blubber' is a layer of oily tissue that protects the internal organs and retains heat.
1. What does the word "mammal" mean?
A. An animal that lives on land.
B. An animal that lives in the sea.
C. An.animal that eats meat.
D. An animal that drinks milk from its mother.
2. What does the word "it" at theã end of the first paragraph refer to?
A. a fish B. the whale C. a mammal D. milkã
3. What is the purpose of 'blubber'?
A. It protects the internal organs.
B. It retains heat.
C. It gives milk.
D. Both A and B.
4. Which sentence ts NOT true about the whale?
A. The baby whale is hatched from an egg.
B. It is the largest animal on earth.
C. The baby whale is fed on its mother's milk.
D. The whale is a warm blooded animal.
I ,
5. Which sentence is TRUE about whales?
....
A. They don't look like fish.
B. They are only the largest animals in the sea.
C. They used to live on land.
D. They only live in warm water.
IX. Rewrlte each of the following sentences using an IF condition.
1. She's very thin; perhaps that's why she feels cold so much.
2. He never polishes his shoes, so he never looks smart.
3. He can't park near his office; that's why he doesn't come by car.
4. My house is guarded by two big dogs. That's the only reason it isn't broken into every night.
5. The flats are not clearly numbered, so it is very difficult to find anyone.
6. I don't know her e-mail address, so Tcan't tell you.
7.. I can't play football this afternoon because I feel tired.
8. She works in the evening. She has no time to play with her children.
9. He hasn't got a watch. He is always late for work.
10. I am not tall enough to join the basketball team.
X. Complete each of the following sentences, using the words given.
1. Whales/ say/ be I most I intelligent animals./ oceans.
2. Whales / like / feed l cold ocean I where / there / be I lot I krill.
3. Blue whale / grow (30 metres} length / and / over 200 tons / weight.
4. Although I sperm whales / can / fjnd / all oceans / they / prefer I waters I high squid / populations.
5. Some wh�les / know / move / warm waters / give birth.
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6. Female / spe� whale / give birth / one calf/ five / seven years.
7. Dolphins / be / mammals / that / live / water / and / eat/ main (fish.
8. Dolphin/ can/ normal/ live/ from/ twenty-five/ sixty".'five years.
ã 9. Dolphin populations / be / risk / due I pollution / habitat.
IO. What / happen / if/ we / not take / ãmeasures / protect / whales / dolphins?
FUN CORNER
ERUA11DR4
. Six people in this park are doing something wrong. The park keeper is going to tell them off.ãã
What d04:9s he say? •
r:� Forexample: ã �
�;:� Yoe{ �lAat<ld"11t-dvhte-�. ã. • .
�� ã �('!""d� ca.v- ""' tke. pca,yk.. ã . -ã
lins?
Unit lO
CONSERVATION
J ; � ,
KIEN THUC CAN NHO
chu de:
Bao V$ moi truong Ngliam:
Ph,� am /b/ va /p/ . Ngli phap VO CCU true: I
On t¢p cau bi d¢ng:
The earth is being threatened and the future looks bad.
Where are these coconut trees planted?
Tuv1,1ng:
D¢ng tu
Tuv�mg ve �oi truong vabao V$ moi truong
BAIT!P
I. Choose the .best answer for each of the following questions.
. I. Choose a word that letter b is not pronounced.
A. breed B. doubt C. valuable
2. Choose a word that letter bis pronounced.
ã A. climbing B. debt C. bomb
3. Choose a word that letter p is pronounced.
A. pneumonia �. psychology C. provisio�
7A-B6TR0TA10
D� mobile
D. lab
b.receipt
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4. ã Choose a word that letter p isn't pronounced;
A. cupboard B. special C. imprison D. camper 5. Choose a word that letter o is pronounced differently from the rest.
A. body B. bottle C. ãpostage D. polish
II. Choose the best answer for each of the follo�ing sentences.
1. Have you ever seen a forest fib)' fire? ã ã
.. t
A. destroy -<c. was destroyed
' '
B. destroyed b. which destroyed
2. Zoos don't want as places where animals are imprisoned.
A. to see B. seeing C. to be seen D. being se�n 3. Plants play an important in the natural circulation of water.
A. role B. section c� act D. area
4. John Aspinall is famous for his performanceã of ____ endangered ,animals.
ã Aãg,r.owing R br�eding C. rising. D. planting 5. All the plants and animals need a constant ____ of w;1ter to live.
A. offer B. borrow C. supply D. provide
6. no you know when----;;.,?-ã
A. penicillin was discovered C. was penicillin discovered B. did penicillin discover D. penicillin discovered
7. Be sure to wash these vegetables thoroughly. A lot of pesticide residue ---- on unwashed produce.
A. can find C. can be found
B. can found D. can be finding .
8. A shortage of water is a problem in many parts of the world. In some areas, water - from the ground faster than nature can replenish
�the supply.
. A. is being taken C. is taking ã
B. has been taking D. has taken
9. Vitamin C by the human body. It gets into. the blood stream quickly.
�- absorbs easily. C. is easily absorbing
ã- B. is easily absorbed D. absorbed easily IO. Hundreds of species of plants and animals ___ _
A. are already be eliminated C. have alreaqy been eliminated
ãB. have already being eliminated D. are already been eliminated IIL Complete the sentences with the words in parenth_eses. Some of the
sentences are active and som� are passive.
I. At _the present time, the oldest house in town (restore) ____ by the Historical Society.
2. A: What a beautifàl old wooden chest!
B: It (build) ____ by my grandfather over fifty years ago.
3. Many of u� take water for granted iri our daily lives, but people who liveã
in the desert (not use) ____ water carelessly. To them, each drop is precious.
4. I (not agree) with people who say space exploration is a waste of money. What do you think?
5. Do you really think that we (invade) ____ byã creaturesã from outer space in the ãnear future?
6. The common housefly (live) ____ from 19 to 30 days.
7. You already (accept) ____ by this university when you heard about the other scholarship?
8. I got into a taxi quickly because I (follow) ____ by.two strange men.
As soon as I got into the taxi, I felt a little safer ..
9. The impact of the earthquake yesterday (feel) by people who lived hundreds of kilometers from the epicenter.
10. Mark ã(influence) a lot by his friends, isn't he? He should be more independent and think for himself.
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'" IV. Fill in. each numbered .blank of the following passage with a suitable word.
Conservation is the safeguarding and preservation of ( 1 ) _______
resources, so that they can continue to be used and enjoyed. In the. p�st, most people that the world's resources could never be (3) ___ _ up. Today, we know that this is not true. An important (4) of conservation is the prevention waste ã - waste of forests, soil, wildlife, minerals and human lives. As important is the fight (6)_ã __ _ pollution of our environment, in (7) ____ , the dirtying and poisoning of air and water. Conservation is also concerned the reclaiming of land (9) ___ irrigating deserts, draining swamps or pushing back the sea ..
Farmers can protect (1 land.by yearly rotation of crops that is, growing (11 crops on the same land from year to year. In this_ way, different ekments of the soil have time to replace (12) ãelements:
Farmers can help enrich the soil by adding fertilizers. They c� (13) ___ _ erosion by ploughing along the contours of a hill rather (14) up and down. In this way water does not run off and (1 ---- the soil with it.