新概念英语2 Lesson 17 Always young

新概念英语2 Lesson 17 Always young I. 用must 或者have to 的正确形式填空。

1. He has very bad eyesight. He ______ wear glasses all the time. 2. Teachers ______ do all their own typing nowadays

3. I didn’t have enough cash, so I ______ pay by cheque（支票）. 4. You ______ read this book. It’s really excellent.

5. Tell her that she ______ be here by eight. I insist on（坚持） it. 6. Son: Mum, I can’t finish it.

Mother: You ______ finish it, son.

7. She ______ learn how to drive when her local railway station closes. 8. If you buy that television, you ______ buy a license（许可） for it.

9. Father and son: I can’t support you any longer; you ______ earn your own living from now on. 10. My neighbor’s child ______ practise the piano for three hours a day.

II. 用not have to 的正确形式改写下列句子。

1. It’s not necessary for us to walk home. He will take us in his car. _____________________________________________________________ 2. It is never necessary for me to work on Saturdays _____________________________________________________________

3. When I am eighteen, it won’t be necessary for me to live at home if I don’t want to. _____________________________________________________________ 4. Will it be necessary for us to report this accident to the police? _____________________________________________________________

5. It wasn’t necessary for me to speak any English. I just bought my ticket from a machine. _____________________________________________________________

6. I saw the accident but fortunately it wasn’t necessary for me to give evidence（证据） as there were plenty of other witnesses（目击者）.

_____________________________________________________________ 7. What time was it necessary for you to leave home? _____________________________________________________________ 8. Is it really necessary for you to practise the piano at 3 a.m.? _____________________________________________________________ 9. Were you required to finish the job? _____________________________________________________________ 10. I brought my passport but I wasn’t required to show it to anyone. _____________________________________________________________

III.用适当的词填空。 as like because since when 1. It was so hot that I had to use my book ______ a fan. 2. I refused to invite her ______ I don’t like her.

3. ______ you refuse to cooperate, I will have to take legal（法律的） advice.

4. Before he earned a full wage, he had to work ______ an apprentice（学徒） for three years. 5. He arrived ______ I was cooking supper.

6. ______ he was in poor health, we decided to persuade him to retire（退休）. 7. ______ I get older I become more optimistic（乐观的）. 8. The boy’s mother regards him ______ a genius. 9. My sister isn’t much ______ me.

10. I made no mistakes because I did the job exactly ______ he taught me.

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