(1)在助动词或情态动词之后,如be going to, used to, have to, ought to, be able to, be about to等。
e.g.: She has to go, but you don’t have to (go). He doesn’t like fish but he used to (like).
(2)在want, decide, like, love, hope, wish, mean, refuse, try等动词之后. e.g.: You may go with them if you hope to (go).
-Did you go to see the Great Wall? -I wanted to (go), but I was too busy. (3)在作宾语补足语的ask, tell, order, advise, persuade, warn, wish, permit, allow等动词之后.
e.g.: Don’t do anything unless your father tells you to (do). -May I use your car?
-No, I don’t allow you to (use).
(4)在对话的答语中的happy, glad, anxious, willing, ready, pleased, afraid等形容词之后.
e.g.: -Will you lend me a hand? -I’m willing to (lend you a hand).
-Would you come to my birthday party tomorrow? -I’ll be glad to (come). Step 3 Practice Choose the best answer.
1.Paul doesn’t have to be made_____. He always works hard.
A. learn B. to learn C. learned D. learning 2.We agreed ___ here but so far she hasn’t turned up yet.
A. having met B. meeting C. to meet D. to have met 3.The doctor and the nurses did all they could ____ the patient’s life. A. save B. to save C. to be saving D. to have save 4.The boy wanted to ride his bicycle to the street, but his mother told him _____. A. not to B. not to do C. not do it D. do not to
5.I would love ____ to the party last night but I had to work extra hours to finish a report.
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A. to go B. to have gone C. going D. having gone 6.The purpose of new technology is to make life easier, ___ it more difficult. A. not make B. not to make C. not making D. do not make 7.I went to see him ____ him out.
A. finding B. find C. only to find D. found 8.Two men were reported ____ in the accident.
A. to kill B. killed C. to be killed D. to have been killed
9.I don’t want_______ like I’m speaking ill of anybody ,but the manager’s plan is unfair.
A .to sound B .to be sounded C .sounding D .to have sounded 10.Energy drinks are not allowed______ in Australia but are brought in from New Zealand.
A. to make B .to be made C. to have been made D .to be making 11. AIDS is said______ the biggest health challenge to both men and women in that area over the past few years(2006·湖北)
A .that it is B .to be C .that it has been D .to have been 12. It’s polite_____ you ________ so.
A. of; to do B. for; to do C. of; saying D. for; saying 13 .______this cake ,you’ll need 2 eggs,175 g sugar and 175 g flour. A .Having made B .Make C .To make D .Making
14. He hurried to the booking office only______ that all the tickets had been sold out.(2006 陕西)
A. to tell B. to be told C. telling D. told
15. It remains_______ whether Jim’s be fit enough to play in the finals.(2006浙江) A. seen B. to be seen C. seeing D. to see
16.As the twentieth century came to a close, the raw materials for a great national literature were at hand, waiting________.
A. to use B. to be used C. to have used D. to be using 17.In fact____ is a hard job for the police to keep order in an important football match.
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A. this B. that C. there D. it
答案:1-5 B C B A B 6-10 B C D A B 11-17 DACBBB D Step 4 Summary and Homework
Today, we’ve reviewed some new words learnt in this unit. In particular, we have learned the usages of to-infinitive .After class, do more exercises to master them better.Finish the exercise on page 9. Time is up. That’all for today. See you tomorrow.
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