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1、动词不定式To 的 几种常见的省略形式,感官动词和使役动词在主动语态中 不需要带to，即我们常说的“一觉二 听三让五看”：feel,listen to , hear , let, make, have, see, watch, notice, observe, look at.,动词不定式To 的几种常见的省略形式,动词不定式To 的几种常见的省略形式,e.g. He noticed Tom take a branch of flowers in his hand. The teacher has us write a composition every week. 注: 在变成被动语态时要加
2、上to。 The person was seen to enter the shop by us.,动词不定式To 的几种常见的省略形式,2. 由 all， what 引导的主语从句或者主语 被only, first, one, least 或形容词最高级 修饰时，而且从句中含有do时，其表语 如果是动词不定式，则往往省去to。,动词不定式To 的几种常见的省略形式,e.g. All I did was empty the bottle. What I wanted to do was drive all night. The only thing I could do was do it m
3、yself.,动词不定式To 的几种常见的省略形式,3常用的结构may well do，may as well do (还是好了)及but或except后 接不定式时，如果它们前面有do便可 省略to，其结构为can not do but， can not help but等句型。,动词不定式To 的几种常见的省略形式,e.g. We might as well put up here for tonight. She cant do nothing but/except ask silly questions. She did nothing but complain.,动词不定式To 的几
4、种常见的省略形式,4. 在had better，would rather，rather than 之后省略to. e.g. Youd better not tell him the news . Rather than wait anyone, I decided to go home by taxi.,动词不定式To 的几种常见的省略形式,5. 以Why或Why not 开头表请求的结构 中常跟上动词原形,省略to。 e.g. Why go with him? Why not go out for a walk ? You look tired. Why not have a good re
5、st.,动词不定式To 的几种常见的省略形式,6.由并列连词and，than, or 连接两个以 上的具有相同意义或功能的不定式时， 第二个动词不定式不带to。 .,动词不定式To 的几种常见的省略形式,e.g. Id like to stay with you, help you and learn from you. She told us to stay at home and wait till she came back.,动词不定式To 的几种常见的省略形式,注：如果两个不定式表示对照或对比时， 则不能省略to. e.g. To try and fail is better tha
6、n not to try at all. He hasnt decided whether to quit or to stay. To be or not to be, that is a question.,动词不定式To 的几种常见的省略形式,7. 在一定的上下文中，为了避免重复， 有时不定式可以省略，但通常保留不 定式符号to。 e.g. I shall go if I want to. “Dont be late.” “Ill try not to.” Dont go till I tell you to.,动词不定式To 的几种常见的省略形式,1.You had better _
7、your hair cut. A. had B. have C to get D to have,2. We _ put the meeting off for a week. A can as well B. will as well C. shall as well D . may as well,B,D,动词不定式To 的几种常见的省略形式,3. He _ live in the country than in the city. A prefers B likes to C had better D would rather,4. The boy told his father tha
8、t he would rather _ an astronaut. A become B to become C becoming D became,D,A,动词不定式To 的几种常见的省略形式,5. Paul doesnt have to be made _. He always works hard. A. learn B. to learn C. learned D. learning,6. - I usually go there by train. - Why not _ by boat for a change?A. to try going B.trying to go C. t
9、o try and go D.try going,B,D,动词不定式To 的几种常见的省略形式,He wants to do nothing but out. to go go going goes 8. He wants to believe anything but_ the medicine. A to take B took C takeD takes,B,A,动词不定式To 的几种常见的省略形式,9. Compared with women, men always prefer _ at home rather than _ so much time shopping . A to finish ,to spendB to finish ,spend C finish ,spend D finish,to spend,B,