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约5410字。

　　人教版英语选修7 Unit3同步练习及答案
　　Unit Three  Under the sea
　　I. 根据下列句子意思用所给词的正确形式或所给汉语填空
　　1. The booll of amusing           (anecdote) about his life in Japan.
　　2. In general, the        (年度的) rainfall in these regions is less than the annual water loss.
　　3. Hotel               (食宿) is included in the price of your holiday.
　　4. She tried calming him down but it seemed to be having the         （相反的） effect.
　　5. The woman spoke almost without          (pause) for breath.
　　6. Details on the moon's surface can only be seen through a          (望远镜).
　　7. Today's complex buildings require close        (协作) between the architect and the builders.
　　8. The driver had already         (flee) the scene of the accident.
　　9. The party was so good that I couldn't       (drag) myself away.
　　10. Astronomers may one day travel to the         (deep) of space.
　　11. You mustn’t sit on the edge of the boat, or you may fall           (向船舷外) and drown.
　　12. I have established a good working           （relation） with my boss.
　　13. Energy              (conserve) reduces your fuel bills and helps the environment.
　　14. In remote regions, the air is       (纯洁的) and the crops are free of poisonous insecticides.
　　15. Your house is always so n      （整洁的） — how do you manage it with three children?
　　16. The company offered only a n         (狭窄的) range of financial services.
　　17. It was a simple but        (taste) meal.
　　18. She moved quietly to avoid         (scare) the birds away.
　　19. The Ural mountains mark the          (边界线) between Europe and Asia.
　　20. He won't be able to receive his         (养老金) until he is 65.
　　II、短文语法填空
　　阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
　　Have you ever eaten snakes？Snake dishes have become popular 1.________recent years. Snake meat in various flavors (风味) can 2.________(see) in restaurant ads very often.3.________(eat) snake seems to be now popular，and if you haven’t eaten snake yet，you are considered “out of date”．But I wonder if all the trends are worth 4.________(follow)．
　　Some people may defend themselves 5.________saying that snake meat is nutritious.But these people don’t realize that many parasites (寄生虫)，6.________do harm to our health，are found inside snakes.
　　According to a survey，about 1,000 tons of snakes are eaten every year in China and sometimes as 7.________as 10 tons of snakes are served on dinner tables in Shenzhen in a single day!
　　These figures warn us that if no action is taken，8.________number of snakes will drop and make an increase in mice and worms population，which will result in a decrease of crop output. Who will see such tragedy 9.________(happen)？So let’s start not to eat snakes any more. To protect the snake is to protect 10.________.
　　III、完形填空
　　If you want to stand out，there is no alternative but hard work.
　　Once a boy in__1__clothes full of patches ran to asccessful building contractor (承包商) in a construction site，“How could I become as __2__as you when I g