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1、第五单元 限时练1班级 姓名 小组本课所学： 一、 完形填空 If you have swum in the 1 , you know that the water is salty. Rivers 2 salt from the land into the sea. Some parts of the sea are 3 salty than other parts. Do you _4 _ the Dead Sea in Arabia? It is very 5 . Swimmers cant 6 in it. It is a 7 sea. In 8 parts of the sea, t
2、here are a lot of fishes and plants. Some live near the top of the sea. 9 live deep down. No light can reach the depths of the sea, 10 it is completely dark. Strange fish live there. Some are 11 . Some have their own light. Some have great jaws. 12 their great jaws, they can swallow(吞下) fish 13 than
3、 themselves. The sea can be very 14 . Deep-sea divers know this 15 , 16 the top of the water may be warm. Then 17 the divers go down, the sea becomes 18 . Many scientists are now making a study of 19 and plant 20 in the sea. They hope to find new resources(资源) for mankind. 1. A. sea B. river C. lake
4、 D. canal2. A. carry B. bring C. lead D. send3. A. as B. much C. very D. more4. A. recognize B. understand C. know D. realize5. A. heavy B. blue C. salty D. clear6. A. die B. sink C. drink D. swim7. A. strange B. beautiful C. wonderful D. deep8. A. any B. most C. few D. a few9. A. Other B. The other
5、 C. The others D. Others10. A. and B. but C. so D. though11. A. alive B. blind C. common D. dead12. A. Use B. In C. With D. Without13. A. larger B. weaker C. smaller D. cleverer14. A. cool B. wide C. deep D. cold15. A. good B. well C. quite good D. quite a few16. A. at B. on C. over D. above17. A. a
6、s B. when C. since D. while18. A. darker and darker B. warmer and warmerC. colder and colder D. deeper and deeper19. A. animal B. man C. fish D. water20. A. habit B. lift C. lives D. habits二、.阅读理解 ALife gets noisier every day and very few people can be free from noise of some sort or another. It doe
7、snt matter where you livein the middle of a modern city, or a faraway villagethe chances that you will be disturbed by jet aeroplanes, transistor radios, oil-powered engines, etc. are almost everywhere .We seem to be get ting used to noise, too. Some people feel quite lonely without background music
8、 while they are working.Scientific tests have shown that total silence can be very frightening experience for human beings. However ,some people enjoy listening to pop music which is very loud, and this can do harm to their eardrums(耳鼓).The noise level in some disc o is far above the usual safety le
9、vel for heavy industrial areas.One recent report about noise and concentration(专心) suggested that although a lot of people say that any noise disturbs their concentration, what really affects their ability to concentrate is a change in the level of noise. It goes on to say that a background noise, w
10、hich doesnt change too much (music, for example) may even help people to concentrate.1. The best title for this passage is _.A. Noisy Life B. Background Noise C. Disturbed Concentration D. Changeable Noise2. From this passage, the pollution of noise _.A. doesnt matter much B. has become worse everyw
11、hereC. has become better in big cities D. has become better in villages3. “Background music” in the passage means _.A. music played in the concertB. a kind of noise coming into your earsC. music helps people to concentrateD. music played while people are working4. Some people may have their hearing
12、hurt _.A. while they are in completely silenceB. while they are dancing violentlyC. while they are listening to pop musicD. while they are listening to soft music5. Scientists have discovered that what prevents people from concentrating is _.A. any kind of noise B. great changes in level of noiseC.
13、background noise D. various background musicBA Serious Problem of the WorldGENEVA-The use of stimulants ( 刺激物) or drugs is increasing and something must be done about it, the /world Health Organization ( WHO) said on Friday.In the 70s the international focus (焦点 ) was on the heroin (海洛因 ) . In the 80s the focus was on cocaine (可卡因) . Now in the 90s we are becoming frightened by the rapid increase in amphetamine (氨基丙醇)-type stimulants, not only in the rich countries of the world but the whole world .said the official of
