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Furthermore, the laser beam can also remove bone, and so it is invaluable in ear surgery.. The sounds we hear are carried from the eardrum to the nerves of the ear by a delicate set of s[r]
(1)PRACTICE TEST 38 I Make the correct choice:
1 This river has been _ by industrial waste
a purified b contaminated c cleaned d darkened
2 Smoke from factories is a kind of
a fertilizer b smog c pollutant d vapour
3 A volcano smoke and ashes
a emits b throws c gives d erupts
4 Pure water is _
a unpleasant b colourful c tasty d odourless
5 He liked _stamps
a collect b collected c collecting d collection
6 They prefer beef pork
a to b than c more than d rather than
7 Don’t worry I will protect you harm
a with b from c about d in
8 She reminds me a girl I was at school with
a to b about c of d with
9 We are looking forward her again
a to see b of seeing c at seeing d to seeing
10 I’m _ of listening to the same thing again and again
a bored b tired c fed up d interested
11 The President is going to a speech about the international situation
a make b perform c d take
23.Choose the word whose underlined part is pronounced differently from the others:
a choice b guidance c intimacy d prospect
24.Choose the word whose underlined part is pronounced differently from the others:
a place b chase c phrase d purchase
25 Choose the word whose main stress is placed differently from the others:
a Canadian b relaxed c humanity d poverty
26 Choose the word whose main stress is placed differently from the others:
a hesitation b revolution c incomplete d sentences II.Identify one underlined word or phrase that is incorrect:
1 Galileo was the first person who he did experiments about how things fall A B C D
Before him, people thought that heavy things always fell faster than light one A B C D
3 He took a heavy ball and a light one because he dropped them both from a high place A B C D
The bridge was so lower that the lorry couldn’t go under it A B C D Someone were cleaning the classroom when we arrived A B C D The policeman said to the little boy what his name was A B C D
(2)A B C D III Read the passage and make the correct choice:
Furthermore, the laser beam can also remove bone, and so it is invaluable in ear surgery The sounds we hear are carried from the eardrum to the nerves of the ear by a delicate set of small bones which sometimes solidify, causing deafness A laser vaporises the bone without touching any of the surrounding tissue
Birthmarks, once almost untreatable, are a mass of blood vessels and, being red, they absorb the laser beam strongly It seals them so that the mark becomes less conspicuous The normal cells on the skin’s surface, which don’t absorb much of the laser beam, act in the healing and help to conceal the mark
1.In the first paragraph, the laser is used to treat .
a bone b birthmarks c.eardrum d deafness
2.How is the laser used in ear surgery ?.
a.to vaporise the bone b.to touch the surrounding tissues
c to solidify the bone d.to carry sounds from the eardrum to the nerves 3 What is the advantage of using the laser in ear surgery?
a it can carry sounds to the nerves b it doesn’t touch the surrounding tissues c it causes deafness d it solidifies the bone
4 The word “invaluable”in line is nearest in meaning to _.
a with no values b penniless c very valuable d very cheap 5 Birthmarks absorb the laser beam strongly because _.
a they are almost untreatable b they are conspicuous
c they are red d they can be treated
6 How is the laser used in birhmark treatment?