人教版必修五unit5语法：省略句强化训练题
一、用所给词的适当形式填空
（1）
1. When ______________ (heat), water is turned into vapour.
2. Wood gives much smoke while _____________ (burn).
3. The letter is to be left here until _________________ (call) for.
4. He looked about as if __________________ (search) for something.
5. Do you have any difficulty _________________ (express) yourself in English?
6. He spent some time _______________ (squeeze) the wet coat dry.
7. When first ______________ (introduce) to the market, these products enjoyed great success.
8. It shames me to say it, but I told a lie when ________________ (question) at the meeting by my boss.
9. English words are easily forgotten, unless constantly ________________ (repeat).
10. The Olympic Games, first _________(pla y) in 776 BC, didn’t include women players until 1912.
（2）
1. Although______________ (tell) to stop, he kept on working.
2. —What’s Joan doing? —_________________ (read) newspapers in the room.
3. You shouldn’t go back to your seat unless__________________ (ask) to.
4. If not______________ (take) care of, the plants will die.
5. While_________________ (drive), one should pay attention to traffic signs.
6. The photos____________ (take) in Beijing attracted many children.
7. She did all she could__________________ (help) us.
8. He spent four hours___________________ (go) over his lessons.
9. Lucy never goes out at night, and so__________________ (do) Mary.
10. It is suggested that we___________________ (go) to see the film.
二.句型转换
（1）
1. A: He is as tall as you are if he is not taller than you.
B: He is as tall as you if __________ __________.
2. A: You may ask him questions if you have any questions to ask.
B: You may ask him questions ________ ________.
3. A: Errors, if there are any, should be corrected.
B: Errors, __________ __________, should be corrected.
4. A: When I am in trouble, I always turn to her for help.
B: When __________ __________, I always turn to her for help.
5. A: While we were there, we were thinking of you all the time.
B: __________ __________, we were thinking of you all the time.
6. A: If it were not for dust, there would be no drops.
B: __________ __________ for dust, there would be no drops.
7. A: When it is necessary, you can help us to do something.
B: __________ __________, you can help us to do something.
8. A: He made up his mind to finish the experiment whether it was difficult or not.
B: He made up his mind to finish the experiment _________ _________ _________ _________.
9. A: Some books are to be tasted, while others are to be swallowed.
B: Some books are to be tasted, while _________ _________ __________ __________.
10. A: He works very hard though he is still rather weak.
B: __________ __________ _________ _________, he works very hard.
