The first telegraph cable 1 under the sea 2 England and France in 1850. Cables are 3 thicker and heavier than telegraph wires. There are 4 reasons 5 this: one reason is that the salt water of the sea harms ordinary telegraph wires, and so they have to be 6 ; 7 is that, because electricity passes easily through water, wires have to be covered 8 electric signals 9 are passing through them from escaping and 10 in the sea; 11 third reason is 12 cables have to be very strong 13 they will break 14 they are being 15 16 the bottom of the sea from a ship 17 on the 18 .
| 1.A.was laying | B.was lain | C.was laid | D.was lying | |
| 2.A.among | B.between | C.from | D.of | |
| 3.A.much more | B.much | C.many more | D.more | |
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4.A.a number of C.a great amount of |
B.the number of
D.a good many of |
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| 5.A.for | B.of | C.to | D.with | |
| 6.A.protected | B.prevented | C.prepared | D.produced | |
| 7.A.other | B.the other | C.second reason | D.another | |
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8.A.to be prevented C.being prevented |
B.to prevent D.to have prevented |
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| 9.A.what | B.which | C.ofwhich | D.from which | |
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10.A.to be prevented C.being prevented |
B.to prevent D.to have prevented |
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| 11.A.one | B.the | C.and | D./ | |
| 12.A.because | B.why | C.that | D.what | |
| 13.A.but | B.so | C.then | D.or | |
| 14.A.while | B.during | C.since | D.for | |
| 15.A.lied | B.lay | C.lain | D.laid | |
| 16.A.along | B.upon | C.on | D.above | |
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17.A.to sail C.sailing |
B.having sailed D.that sailing |
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| 18.A.cover | B.surface | C.outer | D.way to | |
完形填空
The Indians rise as soon as it is light. The children run down to the river to swim. The women go to the creek to bring fresh water. Soon maize soup is being prepared for 1 . Before noon they will eat again, 2 fish, meat and bananas and a drink of “chicha”. When the sun has 3 over the river, some of the younger women go 4 their children by canoe to their forest plantation to 5 maize, bananas and wild fruits. The older women stay in the house making pots which 6 for drinking water and for “chicha”. Later they 7 the evening meal and look after the children. The women do most of the daily work. The man, who may have been hunting during the night, 8 the day repairing nets, replacing an arrow 9 while hunting, 10 with hook and line or net.
| ( )1. | A. children | B. fishing | C. breakfast | D. hunting |
| ( )2. | A. as | B. like | C. dining | D. usually |
| ( )3. | A. risen | B. to rise | C. raised | D. been raising |
| ( )4. | A. to | B. with | C. together | D. tell |
| ( )5. | A. accept | B. feed | C. receive | D. collect |
| ( )6. | A. used | B. is used | C. can use | D. may be used |
| ( )7. | A. ave to prepare | B. have prepared | C. are prepared | D. have been preparing |
| ( )8. | A. passing | B. pass | C. lost | D. saved |
| ( )9. | A. taken | B. found | C. lost | D. saved |
| ( )10. | A. fish | B. fishing | C. fished | D. to fish |