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1、学习好资料欢迎下载省略 to 的动词不定式用法归纳一、使役动词与 to 的省略当不定式用于 let, make, have等使役动词后作宾语补足语，不定式必须省略to。如：Let me have another cup of tea. 给我再来一杯茶。She had him dig away the snow. 她让他把雪挖走。They made him tell them everything. 他们强迫他把一切全告诉他们。但是，当使役动词用于被动语态时，其后的不定式则必须要带to。如：他被迫一天工作 20 小时。误：He was made work twenty hours a day.
2、正：He was made to work twenty hours a day. 注意，表示使役意义的let 和 have很少用于被动语态。另外注意， force, oblige 等虽然也表示 “ 使” ，但它们后用作宾语补足语的不定式必须带 to。如：They forced her to sign the paper. 他们强迫她在文件上签字。The law obliged parents to send their children to school. 法律要求父母送子女上学。考例：1.The teacher forbade _ our seats. A.us to leave B.u
3、s leaving C.to leave D.to leaving 2.Mary had her friend _ the best one. A.choose B.chosen C.chose D.to choose 3.The girl was ma de _ she didnt love at all.A.marry a man B.to marry a man C.to marry with a man D.married with a man 二、感觉动词与 to 的省略当不定式用于表示感觉的动词feel, hear, notice, observe, see, watch, loo
4、k at, listen to 等作宾语补足语时，不定式必须省略to。如：We all felt the house shake. 我们都感觉这房子在震动。I heard him go down the stairs. 我听见他下楼了。Did you notice her leave the house? 她离开屋子你注意到了吗 ? I watched her get into the car. 我看着她上了车。但是，当 feel 后用作宾语补足语的不定式为to be时，则不能省略to。如：They all felt the plan to be unwise. 他们都认为这个计划不明智。注意
5、，当这些动词变为被动语态时，不定式前的to 不能省略。如：They were heard to break a glass in the next door.听见他们在隔壁打破了一个精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 4 页学习好资料欢迎下载玻璃杯子。另外，若用作宾语补足语的不定式为完成式，则通常应带to。如：I noticed her to have come early. 我注意到她来得很早。考例：She told that she heard someonefor help last night A.to call B
6、. call C.called D.calling 三、在 had better、would rather、maymight as well 、rather than 等搭配之后，动词不定式也不带to。例如：If youd rather be alone ，we1l a11 leave here 如果你宁愿独自呆着那我们都离开这儿。You might as well go without her你们还是小带她去为好。(考例) 1.Youd better _ when you come in. A.not to wake up me B.not to wake me up C.not to wa
7、ke up me D.not to wake me up 2.“How about a drink?”“I d rather _ something to eat.”A.have B.to have C.had D.having 四、在介词 but，except之后，如果其前有动词do 的某种形式，其后不定式一般不带 to，反之则必须带to，表示 “ 不得不，只能 ” 。例如：He does nothing but watch TV all day long 他整天除了看电视无所事事、I have no choice but to accept the fact 我别无选择只有接受这个事实。(
8、考例) Sandy could do nothing but_to his teacherthat he was wrongA.admit B.admitted C.admitting D.tO admit 五、以 why 或 why not开头引起的无主语中，动词不定式要省略to。Why argue with him? 为什么要和他争辩呢 ? Why not tell me aboutit in time? 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 4 页学习好资料欢迎下载为什么不及时告诉我这个问题? (考例) I usuall
9、y go there by train. Why not_by boat for a change? A.to try going B. trying to go C. to try and go D. try going 六、在主语以 what、a11、the only thing等开头的包含行为动词do的句子中，作为主语补足语的不定式常可省略to。The only thing you can do is wait and see ，你唯可做的只有等待和观望了：All l can do is help you finish the work on time我能做的所有事情就是帮你按时完成工作
10、。(考例) At present the best thing you should do is_another job ，A.1ook for B1ooks for C.Iooked for D.1ooking for 七、为-了避免重复， 由 and 或 or 连接两个不定式时， 般可以省略第二个不定式符号 to。例如：工m really puzzled what to think or say我真不知道该怎么想和怎么说。We want to swim and climb the hills nextSaturday 我们下个星期六想游泳、爬山。(考例) The captain decid
11、ed to send his car there and_at once ，A.pick them up B.pick up them C.picked them up D.picked up them 注:如果前后两个不定式在意义上有对比关系时，不定式符号to 不能省略。例如：I came not to scold,but to praise you. 我来不是批评你，而是表扬你的。八、一些含有 but 的固定搭配短语如can t help but, can t choose but, can not but, can but等结构中，后面跟不带to的动词不定式。 例如：It rained
12、hard,so they couldnt choose but stay at home.雨下得很大，他们只得待在家里。The old lady could but walk slowly with a stick。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页，共 4 页学习好资料欢迎下载那个老太太人只能拄着拐杖慢慢地朝前走。(考例) 1.I cannot but_your decision A.admire B.to admire C.admired D.admires 2Hearing the inspiring news, we c
13、ouldnt helpbut_.A.cheer B.cheering Cto cheer Dcheered 九、在 make believe( 假装)、make do(将就)，let go (放开)、hear say tell(听人说起 )、let fly(发射)、let fall (掉落 )、leave go( 放开)等固定搭配中，用不带to的动词不定式。 例如：The man made believe that he was a policeman，那个人装扮成 个警察。Have you ever heard tell of such things? 你有没有听说过这种事情 ? Dont
14、let go of the rope 别放开绳子。十、在动词 help之后可用不带 to 的不定式，也可用带to 的不定式。 例如：Will you help me(to)carry the bag? 你能帮我拿这个包吗 ? CustOoers criticisms help(to) improve the service work of our shops 。顾客的批评意见帮助我们的商店改进服务工作。(考例) She can t hclp_ the house because shes busy making a cake，A.clean B.cleaning C.cleaned D.bei
15、nng cleaned 特殊例解：1.She can t help _ the house because shes busy making a cake. A. to clean B. cleaning C. cleaned D. being cleaned 2.While shopping, people sometimes can not help _ into buying something they don t really need. A. to persuade B. persuading C. being persuaded D. be persuaded 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 4 页