高二英语第三单元
（四）、to是介词还是不定式符号，根据不同的含义而定。
1.agree to同意
I don’t agree to his proposal . (to是介词)
He agreed to help me two days later .(to是不定式符号)
2.come to来；谈论
He has a lot of money coming to him . (to是介词)
He came to realize that he was wrong .(to是不定式符号)
3.get to到达；逐步
When did you get to the station . (to是介词)
You’ll get to like the work . (to是不定式符号)
4.on the / one’s way to在……途中；即将……
I lost my pen on the way to school . (to是介词)
She is on the way to see a film . (to是不定式符号)
5.happen to发生；碰巧
What happened to you ? (to是介词)
He happened to pass by the station . (to是不定式符号)
（五）、to后与名词、动词构成成语或短语。
go to college上大学 go to school去上学 face to face面对面 put to use利用 get to know知道…… go to bed上床睡觉 go to cinema看电影 sentence sb. to death处死…… come to a stop停止
【动手动脑】
To-infinitive , Infinitive Without To or Just To
英语中不定式有时候要加to，有时候不加to，有时候只要一个to把动词省去不用。到底该怎样正确运用不定式，有些同学对此感到束手无策，那么不妨做下面这些练习，定会对你有所帮助。
1.Don’t ask him to do that if he doesn’t want . (to do , do , to)
2.They could do nothing but . (to wait , wait)
3.We wondered whether (to go , go) forward or turn ,to turn) back www.xuehuiba.com
.
4.Do what the teacher has told us . (to , to do , do)
5.Hearing this Tom didn’t know whether to laugh or . (to cry , cry)
6.－Would you like to go to the concert with me ?
－Yes , I’d like . (to go , to , go)
7.She doesn’t have to get up so early as she used .(to , to get up)
8. I would rather (to walk , walk) home than (take , to take) a bus .
9.The little child had no choice but . (to cry , cry)
10.Hadn’t you better (to hurry , hurry) if you want to catch the first bus ?
11.－She has to make a special trip to the store to get some salt .
－Does she have ? (to make , to , ×)
12.The policeman let those boys (to go , go), hoping they would learn from their mistake and (to obey , obey) the rules in the future .
13.That’s too good a chance (to let , let) .(pass , to pass)
14.I don’t think he need (tell , to tell) me .
15.I’ll try to help you it . (to do , to )
16.He went to America pennilessly , (return , to return) home forty years as a millionaire .
17.My brother has made a radio (listen , to listen ) to music .
18.They did all they could (help , to help) her .
19.－Ought I to go ?
－Yes , I think you ought . (to , ×)
20.Since you’re tired and sleepy , why not (have , to have) a good sleep ?
21.She has never dared (ask , to ask) them .
22.I dare (to say , say) , it’s going to rain .
23.Are we (bring , to bring) our books to the lecture ?
24.Do (ask , to ask) me if you want anything .
25.Crocodile may , and often do , swimmers . (to attack , attack )
答案及说明：
1.to 2.wait 3.to go , to turn 有对照之意，两个不定式都要带to。 4.to do 5.两个答案都对：whether to laugh or (to) cry可看成成语，译成“啼笑皆非”。6.to 对Would you like to…的回答是：Yes , I’d like to. 7.to 8.walk , take 9.to cry 10.hurry 11.to 对have / has to的回答应该是to。12.go , obey 13.to let , pass 14.tell need第三人称后无词形的变化，说明它是情态动词。 15.to do 16.to return 分词作结果状语表示必然的结果，不定式作结果状语表示没有预料到的结果。 17.to listen has made中的made含义是“制作”，不定式作定语。 18.to help 19.to 20.have why not后接原形动词表示建议。 21.to ask 22.say。I dare say是个固定形式。 23.to bring be to表将来。24.ask。Do / Does / Did放在动词原形前，起强调作用。 25.attack and often do看成插入语，may后接原形动词。
【创新园地】
读谚语，“觅”动物
下列英语谚语中均含动物名称，你能根据字母提示写出它们并把英语句子和后面的汉语句子对照入座吗？
1.When the f preaches , take care of your g .
2.Use a book as a b does flowers .
3.Two d fight for a bone , and a third runs away with it .
4.Though your enemy seem a m , yet watch him like a l .
5.A black h lays a white egg .
6.All a wag their ears .
7.He who rides a t is afraid to dismount .
8.A m remains the same though dresses in silk .
9.Take the b by the horns .
10.Never repeat the words of others like a p .
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