史上最完整动词不定式用法课件

1、1. 动词不定式的用法作主语作宾语作定语作表语作宾补作状语动词不定式2.动词不定式的时态和语态3. 史上最完整动词不定式用法1. 动词不定式作主语动词不定式作主语，谓语动词用第三人称单数。To get there by car will take a whole day.How to get enough money is still a question.史上最完整动词不定式用法1. 动词不定式作主语有时候为了保持句子平衡，常用it作形式主语，放到句首，而将作真实主语的动词不定式放到句末。It will take a whole day to get there by car.It is i

2、mpossible for me to finish the work in a week.史上最完整动词不定式用法2. 动词不定式作宾语动词不定式作宾语常用于下列动词后：want, agree, decide, manage, wish, hope, ask, like, love , choose, promise, continue, plan, learn, expect, offer, prepare, refuse, pretend, attempt, intend, threaten, seek, hesitate, long, desire, fail等等。史上最完整动词不定式

3、用法动词不定式作宾语应注意的问题1.有些动词后跟动词不定式和动名词作宾语意义截然不同try, go on, stop, mean, regret, remember, forget等史上最完整动词不定式用法try to do sth. 尽力去做某事try doing sth. 试一试，试试看Try knocking at the back door if nobody hears you at the front door.Try to get there on time.史上最完整动词不定式用法forget to do sth. 忘了去做某事forget doing sth.忘了做过某事I

4、forget telling her about itI forget to bring the purse with me when I left home this morning.史上最完整动词不定式用法remember to do sth.记住去做某事remember doing sth.记得做过某事I remember reading the story in some book.Remember to post the letter for me when you go to the post office.史上最完整动词不定式用法动词不定式作宾语应注意的问题2. 如果不定式作宾语

5、而后面又有一个宾语补足语，这时要用it作形式宾语而把这个动词不定式放到补语后。I feel it my duty to help you.I once thought it impossible for us to finish the job in such a limited time.史上最完整动词不定式用法3.动词不定式作定语动词不定式作定语，它与所修饰的名词或代词可能是主谓关系，也可能是动宾关系。如果是动宾关系，不定式主动表示被动。He was the last one to leave school yesterday.We have much homework to do eve

6、ryday.史上最完整动词不定式用法4.动词不定式作表语1主语和表语都是不定式（其含义往往一是条件，一是结果），如： To be kind to the enemy is to be cruel to the people. To do that would be to cut the foot to fit the shoe.史上最完整动词不定式用法2主语是以aim, duty, hope, idea, intention, mistake, plan, proposal, job, suggestion 等为中心词的名词词组，或以 what 引导的名词性从句表示，表语用不定式说明其内容，如

7、： My idea is to climb the mountain from the north.My suggestion is to start work at once. What I would suggest is to start work at once. 史上最完整动词不定式用法注：在某些句型中，当主语部分有动作动词do 时，作表语的不定式可以省略符号 “to”，如： All we have to do is push the button. The only thing I can do now is go on by myself. All I could do was

8、send him a telegram. 史上最完整动词不定式用法5.动词不定式作宾补常跟动词不定式作宾补的动词有：（1）可接带to的不定式作宾补的动词有：ask, get, allow, forbid, prefer, force, inspire, advise, cause, tell, order, warn, teach, permit, wish, invite, encourage等史上最完整动词不定式用法（2）可跟省to的动词不定式作宾补的动词有：在部分感官动词和使役动词后，如：see, watch, notice, observe, look at, listen to, f

9、eel, make, let, have注：help后可跟省to或带to的不定式作宾补。史上最完整动词不定式用法The teacher had us recite the text every day.I was let to do the experiment alone.Was he noticed to leave the house?动词不定式在主动语态中用省to的形式作宾补，但在被动语态的句子中，要用带to的形式作主语补语。史上最完整动词不定式用法6.动词不定式作状语动词不定式作状语用来修饰动词、形容词、副词或整个句子，通常表示目的、原因、结果、程度等。史上最完整动词不定式用法1表示

10、目的： They ran over to welcome the delegates.He stood up to be seen better.2. 表示结果：What have I said to make you so angry?He came round to find himself in hospital.史上最完整动词不定式用法不定式结构表示结果更常见于下列句型： so as to Would you be so kind as to lend me your bicycle / tell me the time? such () as to Im not such a foo

11、l as to believe that. enough to The boy is old enough to go to school. too to 5.only to do表示一种意想不到的结果Eg:We went to the train station only to find that the train had left.史上最完整动词不定式用法当too前有only时，only too to译作肯定。 I am only too pleased to help you.当不定式前有表否定意义的词时，译作肯定。We are never too old to learn.史上最完整

12、动词不定式用法动词不定式的时态1. I opened the door to enter the room. 3. Mr. Smith is going to attend the meeting to be held tomorrow. 一般式( to do ).不定式的一般式所表示的动作（状态）同时（或几乎同时）发生，或之后发生。2.saw her enter the room.史上最完整动词不定式用法.进行式( to be doing)1. I am very glad to be working with you.2.He pretended to be reading when hi

13、s mother came into his room.不定式的进行式表示正在进行的动作,和谓语动词所表示的动作同时进行。动词不定式的时态史上最完整动词不定式用法动词不定式的时态.完成式（to have done)1. I am sorry to have kept you waiting so long.2. You seemed to have read the novel written by Mr. Smith.不定式的完成式表示的动作在谓语表示的动作之前发生。史上最完整动词不定式用法巩固练习1. Several of these washes and dryers are out o

14、f order and_.need to be repairingB. repairing is required of themC. require that they be repaired.D. need to be repaired.解析：and并列谓语动词， need to be repaired相当于need repairing.D史上最完整动词不定式用法2. I wish you had brought your family with you. Ill get them _ next time. A. coming B. to come C. come D. have come

15、B解析：使役动词get后跟带to的动词不定式作宾补，let，make, have后跟省to的动词不定式作宾补。史上最完整动词不定式用法3. We climbed to the top of the tower _a better view of the area. getting B. got C. having got D. to getD解析：动词不定式作目的状语，其余几个没这功能。史上最完整动词不定式用法4. What is the way Smith thought of _ enough money to buy the new house. A. getting B. having

16、 got C. being got D. to getD解析：名词the way后跟有两个定语，一个是定语从句Smith thought of， 一个是动词不定式to get enough money to buy the new house.史上最完整动词不定式用法5. The young assistant was noticed _ the bank alone last night. A. entering B. enter C. to enter D. enteredC解析：感官动词后可跟现在分词和省to的动词不定式作宾补。不定式表示全过程，现在分词表示正在进行。在被动语态中用带to的动词不定式作主语补语。史上最完整动词不定式用法6. Wang Dong wanted to surf the Internet, but his father told him _. A. not to do B. not do it C. do not to D