动词不定式练习题及讲解
动词不定式用法要点讲解
一、作主语
动词不定式作主语时，句子的谓语动词常用单数，其位置有以下两种：
(1)把不定式置于句首。如：
To get there by bike will take us half an hour.
(2)用it作形式主语，把真正的主语不定式置于句后，常用于下列句式中。如：
①It＋be＋名词＋to do
It's our duty to take good care of the old.
②It takes sb+some time+to do
How long did it take you to finish the work?
③It＋be＋形容词＋for sb＋to do
It is difficult for us to finish writing the composition a quarter of an hour.
④It＋be＋形容词＋of sb＋to do
It is stupid of you to write down everything the teacher says.
⑤It seems(appears)＋形容词＋to do
It seemed impossible to save money.
二、作宾语
⒈不定式作宾语
①以下动词后，只能跟不定式作宾语。如：
agree,ask,aim,arrange,choose,decide,demand,expect,fail ,help,hope,lean,long
manage,offer,plan,prepare,pretend,promise,refuse,wish等，这些词大部分可接th at引导的从句。如：
When our visit to the farm was over, we expected to start back on foot.
When our visit to the farm was over, we expected that we would start back on foot.
②当复合宾语中的宾语是不定式时，先用形式宾语it代替不定式，把不定式置于补语之后，即：主语＋动词＋it＋补语＋to do句式。
He feels it his duty to help the poor.
③介词but,except,besides+to do(do)
在这种句型中，如介词前有动词do，后面应接不带to的不定式；如无do，则接to不定式，即带do不带to，带to不带do。如：
The enemy soldiers had no choice but to give in.
⒉部分动词后面，既可接动词不定式，也可接动名词作宾语，意义不变。如：
begin,continue,start,hate,like,love,need,require,want等。在need,require,want后接-ing形式，表示被动意义，也可接不定式，但要用被动形式，如：Your handwriting needs improving(tobe improved). hate,love,like接不定式表示特定的未来事件，接动名词表示目前正在进行的活动或一般的行为。
在下列情况下，一般要用不定式：
①hate,like,love前有would(should)时，如：I'd like to have a cup of coffee.
②当谓语动词begin,continue,start等是进行式时，如：Thestudents are starting to work on the difficult maths problem.
③begin,continue,start与know,understand等状态动词连用时，如：I soon began to understand what was happening.
3．advise,allow,encourage,forbid,permit等动词后接动名词作宾语，或带不定式作宾语补足语。如：
Our teachers don't permit our/us swimming in the lake.
Our teachers don't permit us to swim in the lake.
4．部分动词后接不定式或动名词时，意义差别较大，应根据句子语境选择使用。
①forget,remember,regret后接不定式，表示现在或未来的动作，接动名词表示动作已经发生。如：
We regret to tell you that all of you are not invited to attend the meeting.
They regretted ordering these books from abroad.
②mean to do 打算做某事;mean doing 意味着……
③try to do 设法尽力做某事; try doing 试着做某事
④stop to do 停下一件事去做另一件事（不定式作目的状语）; stop doing 停止做某事
⑤can't help doing 禁不住…; can’t to do不能帮助干……
⑥go on to do 做不同的事或不同内容的事;
doing 继续不停地做某事，指同一动作的继续
⑦leave off to do 离开某地去干什么（目的状语）; leave doing停下某事
三、做表语
To be kind to the enemy is to be cruel to the people.
四、作定语
不定式在句中作定语，置于被修饰的名词或代词之后。如：
Have you anything to be taken to your sister?
Would you please give me some paper to write on?
不定式短语作定语和被修饰词之间表示以下关系：
(1)表示尚未发生的动作。
(2)与被修饰词之间有动宾关系，如是不及物动词，则需加介词。
(3)与被修饰词之间有逻辑上的主位关系。
(4)不定式作定语时，一般可转换为定语从句。
五、不定式作补足语
⒈作宾语补足语
一些及物动词除要求按宾语外，有时还需要有宾语补足语，说明宾语的行为、状态、特征，这时意思才相对完整。
(1)常要求不定式作宾补的动词有：allow,ask,advise,beg,cause,drive（强迫），
encourage,expect,forbid,force,get,would like(love,hate),
order,permit,persuade,teach,tell,want,warn,wish等。如：
I expect you to understand the whole passage clearly.
(2)部分动词后常接to be＋形容词、名词短语等形式，有时to be可省略，如：
consider,imagine,judge ,prove,suppose等。
I consider him(to be)one of the best biology teachers .
但当不定式是完成式时，to不能省略，如：We consider him to have been foolish.
(3)感觉动词和使役动词后用作宾补的不定式须省略to。
①I didn't hear anyone say anything about it.
②They make the students do too much homework every day.
这种句式在变为被动语态时，to不能省略，如第②句：The students are made to do too much homework every day.
(4)部分短语动词后，常接不定式作宾补，如：
The Party calls on us to increase production and practise economy.
常这样用的短语动词有：ask for,care for,call on ,depend on,wait for,long for（渴望），prepare for等。
⒉作主语补足语
不定式作主语补足语，和主语构成一种逻辑上的主谓关系。如：
①He was not allowed to enter the classroom for being late.
②The young university student is considered to have great promise.
六、不定式作状语
⒈作目的状语
(1) I stayed there to see what would happen.
(2)有时为了强调，不定式前可加in order或so as。如：
Bob took down my telephone number so as(in order)not to forget it.
有时为强调目的状语可把in order to或不定式置于句首，但so as to不能这样用。在这种句式中不定式部分可转换为so that,in order that,成为目的状语从句，如：I stayed there so that (in order that)I could see what would happen.
(3)在部分表示感情色彩的形容词、过去分词或动词之后可接不定式，如：
astonished,glad,happy,laugh ,pleased, sad,smile,sorry,surprised等。
①We are glad to hear the news.
②I was surprised to see that a three-year-old baby could write so well.
在部分形容词后接不定式，用主动形式表示被动意义，这种句型中的主语是不定式的逻辑宾语。如：The question raised by the student is difficult to answer.
The room is really comfortable to live in.
常这样用的形容词有：comfortable,easy,dangerous,difficult,expensive,fit,impossible等。
⒉作结果状语
We came home after our holiday to find our garden neat and tidy.
不定式作结果状语还常用在下列句式中。如：
①so…as to; s uch…as to
I'm not so stupid(a fool) as to put it in writing.我不至于愚蠢到会把它写下来。
②enough…to
The speed is high enough for us to catch up with the first liner.
③only to
Jane hurried back only to find her mother dying in the hospital.
④too…to
I'm too tired to stay up longer.
但在下列结构中，t oo…to并非是“太……而不能……”之意。如：
I'm only too glad to have passed the exam.考试及格我太高兴了。（too修饰glad to have…，相当于very）
⒊不定式短语还可作独立成分，用于句首、句中或句末。如：
To tell the truth,the play was a great disappointment tome.
常见的短语有to be exact（确切地说），to begin with（首先），to be sure（真的）等等。七、动词不定式的其它用法
⒈疑问词＋不定式结构
疑问词who,what,which,when,where,whether,how后可接不定式构成不定式短语，在句中作主语、宾语、表语等。如：
When and where to go has not been decided yet.
以上例句中疑问词＋不定式部分，均可转换为相应的从句形式。经常在这种结构中使用的动词有：consider,decide,discover,explain,find
out,forget,hear,know,learn,observe,understand,wonder等。
⒉动词不定式的时态、语态
(1)时态
①一般式：动词不定式一般式表示的动作发生在谓语动词之后，有时表示同时发生。如：
I returned home to find my house broken in.
②完成式：表示的动作发生在谓语动词所表示的动作之前。如：
I'm sorry to have kept you waiting.
③进行式：表示的动作与谓语动词同时发生。如：
They pretended to be thinking deeply ,when I came back.
④完成进行时：表示的在谓语动作之前一直进行的动作。
She is said to have been writing the novel about New York for years.
(2)语态
如果动词不定式的逻辑主语是这个不定式所表示的动作的承受者，不定式一般要用被动语态形式。如：
It was impossible for lost time to be made up.（不定式作主语）
Can you tell me which is the car to be repaired?（不定式作定语）
在There be结构中，修饰主语的不定式可用被动，也可用主动。如：There are still many things to take care of (to be taken care of).但有时两种形式表达的意思不同，如：These is nothing to do now.( We have nothing to do now.) There is nothing to be done now.(We can do nothing now.)
3.在口语中，为避免重复，常用"to"代替不定式结构，有时甚至可以把to省略。如：
—Did you go to visit the Great Wall?
—No,I wanted(to),but there wasn't enough time.
另外，be going to,ought to,used to等也常用于这一结构中。
⒌在why引起的问句中，省略"to"。如：
Why don’t we spend such a lot of money buying things?
Why not wait for a couple of days?
⒍当两个或更多作用相同的不定式并列使用时，只在第一个不定式前加"to"。如：
It's quite necessary for us to read more and have more practice.
⒎"to"在下列短语中是“介词”，后接动名词或名词形式。如：
devote…to, look forward to（盼望），object to（反对），take to（养成习惯，对……感兴趣；开始从事某种活动），be used to（习惯于）,be devoted to ,pay/draw attention to ,get down to, treat…to, be addicted to, make contributions to ,owe…to, look up to…, relate…to,等。
不定式专题：
1.Is______necessary to change trains at Beijing?
A. this
B. that
C. it
D. he
2. _____ is easier than to do .
A . Saying
B . To say
C . Said
D . To having said
3. He found it important _____ the situation all over the world.
A. study
B. to study
C. studies
D. to be studied 4．____late in the morning ,Bob turned off the alarm.
A To sleep
B Sleeping
C Sleep
D Having slept
5.It was foolish his car unlocked.
A.for him to leave
B.of him to leave
C.for him leave
D.him to leave
6. The boy refused ______ for climbing the tall tree.
A. to pay
B. to be paid
C. being paid
D. paying
7. I happened _____ the article when he asked me about it.
A, having read B. to have read C. to be read D. reading
8. Talking about the future career, I’d prefer ____ a teacher ____ be a secretary.
A. being, to
B. to be, to
C. to be, rather than
D. being, more than
9. The young man persuaded his father _____ smoking
A. to give up
B. giving up
C. being given up
D. give up
10. They would not allow him _____ across the enemy line.
A. to risk going
B. risking to go
C. for risk to go
D. risk going
11. Believe it or not, he was seen______upstairs just now.
A.to go
B.to going
C.having gone
D.go
12. Paul doesn’t have to be made ___ . He always works hard .
A .learn
B .to learn
C .learned
D .learning
13. His wish _____ a doctor came true.
A. becoming
B. become
C. to become
D. became 14．There are five pairs____, but I am at a loss which to buy.
A to be chosen
B to choose from
C to choose
D for choosing
15. The doctor did everything he could _____ the patient.
A. save
B. to save
C. saving
D. saved
16. I was just about _____ the office when the phone rang.
A. leaving
B. leave
C. to leave
D. to leaving
17. At last the enemy soldiers had no choice but _____ their guns.
A. to lay down
B. lie down
C. laying down
D. lay down
18. Do let your mother know all the truth . She appears _____ everything .
A .to tell
B .to be told
C .to be telling
D .to have been told
19.When and where to build the new power station______yet.
A.is not decided
B.are not decided
C.has not decided
D.have not decided
20. All I did was _____ him a little push . I didn’t mean to harm him .
A .give
B .given
C .giving
D .to giving
21. The library needs ______,but it’ll have to wait until Sunday.
A. to clean
B. to be cleaned
C. clean
D. being cleaned
22.He made a long speech _____ his ignorance (无知) of the subject．
A．only to show B．only showing C．showing D．enough to show 23．I’ve worked with children before, so I know what ______in my new job.
A expected
B to expect
C to be expecting
D expects
24. Tom _____ when they spoke ill of him.
A. happened to be passed
B. happened to be passing by
C. happened passing by
D. happened to passed
25. To master a foreign language,______.
A. a lot of practice is needed
B. it needs a lot of practice
C. practice is in need of
D. one needs a lot of practice
26 —What do you think of the book?
—Oh, excellent. It’s worth ______a second time.
A. to read
B. to be read
C. reading
D. being read
27. The speaker raised his voice bu t still couldn’t make himself____ (NMET91 34)
A.hear
B. to hear
C. hearing
D. heard
28. On afternoon, Mrs Green went to the market, ____ some bananas and visited her cousin. (NMET91 23)
A. bought
B. buying
C. to buy
D. writing
29. --I usually go there by train.
--Why not ____ by boat for a change? (NMET92 14)
A. to try going
B. trying to go
C. to try and go
D. try going
30. ____ a reply, he decided to write again. (MET92 39)
A. Not receiving
B. Receiving not
C. Not having received
D. Having not received
31. How about the two of us __ walk down the garden? (MET93 17)
A. to take
B. take
C. taking
D. to be taking
32. ____ down the radio ---- the baby’s asleep in the next room. (MET93 24)
A. Turning
B. To turn
C. Turned
D. Turn
33. Charles Babbage is generally considered ____ the first computer. (MET93 34)
A. to invent
B. inventing
C. to have invented
D. having invented
34. --I must apologize for ____ ahead of time.
--That’s all right. (MET94 21)
A. letting you not know
B. not letting you know
C. letting you know not
D. letting not you know
35. Rather than ___ on a crowded bus, he always prefers____a bicycle.(NMET94 22)
A. ride; ride
B. riding; ride
C. ride; to ride
D. to ride; riding
36. The missing boys were last seen ____ near the river.(NMET94 25)
A. playing
B. to be playing
C. play
D. to play
37. The first textbooks ____ for teaching English as a foreign language came out in the 16th century. (NMET94 34)
A.having written
B. to be written
C. being written
D. written
38. ---You were brave enough to raised objections at the meeting.
---Well, now I regret ____ that. (NMET95 26)
A. to do b. to be doing C. to have done D. having done
39. The boy wanted to ride his bicycle in the street, but his mother told him__ (NMET95 35)
A. not to
B. not to do
C. not do it
D. do not to
40. ---What do you think made Mary so upset?
---____ her new bicycle. (97上海13)
A. As she lost
B. Lost
C. Losing
D. Because of losing
41. She can’t help ____ the house because she’s busy making a cake. (97 上海12)
A. to clean
B. cleaning
C. cleaned
D. being cleaned
42. She looks forward every spring to _____ the flower-lined garden. (95 上海20)
A. visit
B. paying a visit
C. walk in
D. walking in
43. While shopping, people sometime can’t help ____ into buying something they don’t really need. (96上海14)
A. to pursue
B. persuading
C. being persuaded
D. be persuaded
44. The purpose of new technologies is to make life easier, ____ it more difficult.(NMET99 21)
A. not make
B. not to make
C. not making
D. do not make
45. A computer does only what people _____. (99上海19)
A. have it do
B. have it done
C. have done it
D. having it done
初二动词不定式练习题
动词不定式专项练习 一、动词不定式作主语 1. It's our duty _________ the room every day. A. to clean B. cleaned C. clean D. cleans(甘肃省) 2. It's hard for us _________ English well. A. learn B. learns C. to learn D. learning(江西省) 3.建造这座立交桥将花费工人们一年多的时间。 It will _________ the workers over a year _________ _________ the flyover.(北京市海淀区) 4. It's very nice _________ you to get me two tickets _________ the World Cup. A. for，of B. of，for C. to，for D. of，to(安徽省) Keys：1. A 2. C 3. take，to，build 4. B ［简析］动词不定式作主语时，可以直接放在谓语动词前面的主语位置，也可以用先行词it 作形式主语，而将真正的主语(不定式)置于后面。常见的句式有： (1)It is +形容词(of sb)to do sth. (2)It is +名词(for sb)to do sth (3)It takes sb some time to do sth (4)It is +形容词(for sb)to do sth.句式 (1)中常用nice，kind，clever，good，right，wrong，foolish，careless等形容词，与介词of搭配，这些形容词常表述不定式逻辑主语的属性或性质；句式(4)中常用hard，difficult，easy，important等形容词，与介词for搭配，表示不定式表示的动作、行为的性质。 注意：当不定式作主语的句子中又有一个不定式作表语时，不能用It is… to…的句型 (对)To see is to believe.百闻不如一见。(错)It is to believe to see. It's for sb.和It's of sb. 1) for sb. 常用于表示事物的特征特点，表示客观形式的形容词，如easy, hard, difficult, interesting, impossible等： It's very hard for him to study two languages. 对他来说学两门外语是很难的。 2) of sb的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如good, kind, nice, clever, foolish, right。 It's very nice of you to help me. 你来帮助我，你真是太好了。 for 与of 的辨别方法：用介词后面的代词作主语，用介词前边的形容词作表语，造个句子。如果道理上通顺用of，不通则用for。如：You are nice.(通顺，所以应用of)。He is hard. (人是困难的，不通，因此应用for。) A.It is right to stop killing wild animals. B.It is the best time to visit USA in summer. C.It is helpful for us to learn English well. 二、动词不定式作宾语 1. He wants ______ some vegetables. A. buy B. buying C. to buy D. buys (山西省) 2. Don't forget ______ your homework with you when you come to school. A. to bring B. bringing C. to take D. taking (福建省) 3. He found it very difficult ______. A. sleeping B. sleeps C. slept D. to fall asleep (湖南省) Keys：1. C 2. A 3. D
(完整版)非谓语动词练习题(含答案解析)
高考英语非谓语动词练习题 1．The headmaster wanted the new classroom building___as soon as possible．A．to put up B．to be put up C．to have been put up D．being put up 2．At the shopping－centre，he didn’t know what____and____with an empty bag．A．to buy；leave B．to be bought C．to buy；left D．was so buy；leave 3．The policeman put down the phone，____with a smile on his face． A．satisfied B．satisfying C．to be satisfied D．having satisfied 4．____，your composition is full of mistakes． A．Writing carelessly B．Written carelessly C．Having written carelessly D．Being written carelessly 5．She made a candle_____us light． A．give B．gave C．to give D．given 6．The stranger you saw_____with a big travelling－bag stayed in Room 104 yesterday． A．to come in B．come in C．has come in D．who came in 7．——What do you suppose made her worried? ——_____a gold ring． A．Lose B．Lost C．Losing D．Because of losing 8．He feft a stone____his back． A．hitting B．hit C．hitted D．to hit 9．I know it’s not important，but I can’t help_____about it． A．to think B．and think C．thinking D．being thought 10．_____several times the young scientist still kept on making his experi －ments． A．Having been failed B．Having failed C．Though failed D．Because of failure 11．In Australia，he made a lot of friends____a very practical knowledge of the English language． A．get B．go get C．getting D．got 12．——What did you mean by saying that? ——I mean no harm．I only____． A．meant heping B．want to help C．meant of help D．want helping 13．I never expected the shoes_____． A．wearing out B．to be worn out C．to have worn out D．being worn out 14．You must learn_____． A．that your time needs a wise use B．how to make lest of your time C．to make wise use of your time D．wise ways to use your time 15．_____is better_____one’s life than_____one’s spirit． A． That； lost； you lose B． It； to lose； lose C．This ； losing ； losing D． It； to lose ； to lose
高中动词不定式用法讲解及练习电子教案
高中动词不定式用法讲解及练习
Grammar Presentation---动词不定式 一、不定式的句法功能 ●不定式作主语 ?To learn a foreign language is not easy.学习外语不是一件容易的事。 ◎不定式短语作主语时，常用it作形式主语来代替它的位置，而将真正的主语（不定式短语）移到谓语之后 ?It’s a great honor to be invited to Mary’s birthday party.很荣幸被邀请参加玛丽的生日聚会。 ●不定式作宾语 ◎作动词宾语 ◇下列动词常接不定式作宾语，如：agree, arrange, ask, beg, choose, dare, decide, demand,expect, fail, fear, hope, manage, offer, plan, prepare, pretend, promise, ?They hope to find new resources for mankind.他们希望为人类找到新资源。 ◇如果不定式作宾语且有自己的补语，常用“it”作形式宾语，而把真正的宾语放在后面。 下列动词常用it作形式宾语，如：believe, consider, feel, find, know, make ?I know it impossible to finish so much homework in one day. 我知道在一天中完成这么多的作业是不可能的。 ●不定式作表语 ◎不定式作表语时，一般紧跟在系动词后，说明主语的内容 ?The first step is to check the victim’s breathing.
初中动词不定式专题讲解及练习(全面)
语法：动词不定式 动词不定动式是一种非谓语动词形式，它没有人称和数的变化，在句子中不能作谓语，但可以作除谓语之外的其它任何句子成分（主语、表语、宾语、宾语补足语、定语和状语）；动词不定式具有名词、形容词和副词的特征，同时还保持动词的某些特点，既可以有自己的宾语和状语，动词不定式和它的宾语和状语构成不定式短语。 一、构成：to do .否定式not to do 二、常见时态：一般时to do 进行时to be doing 完成式to have done 完成进行式to have been doing 三、动词不定式在句子中的成分 1、作句子的主语:现实中常用it作形式主语，而把真正的主语动词不定式（或短语）后 置。 比较下列句子 To lear n from your frie nds is importa nt.=lt is importa nt to lear n from your frie nds . ______ To leave without say ing goodbye is impolite.= It is impolite to leave without saying ________ goodbye. To chat with Miss White is a pleasa nt thi ng.=lt is a pleasa nt thi ng to chat with Miss ______ White. To walk to school takes me ten minu tes.=lt takes me ten minu tes to walk to school. _______ 句型总结 It is + adj. + of sb. to do sb：?i= are +adj. +to do 在以某些表示人的品质、特征等的形容词（如kind、good、nice、wrong、clever、right等）作表语时，不定式之前常加一个引起的短语，说明不定式指的是谁的情况（可以理解为某人的好，坏，聪明，愚蠢，对，错等等）。 It is very kind of you to help me. It ' s not polite of himto speak to old people like that. It is + adj. + for sb. to do …乞aisb+Odj. +to do 女:果要说明不定式表示的动作是谁做的，则在不定式前加一个for引起的短语，即不定式的逻辑主语。 It is n ecessary for us to study hard ___ It is easy for him to speak En glish. 动词不定式作主语练习 1. It's our duty the room every day. A. to clea n B. clea ned C. clea n D. cleans（甘肃省）
(完整版)初中英语动词不定式练习题
一. 根据上句意思完成下句，使两句意思相近或相同，每空一词。 1. He was so angry that he couldn’t say anything. He was too angry _______ ______ anything. 2. I don’t know when we will have the meeting. I don’t know when _______ _______ the meeting. 3. He said he would write a letter. He said he would have a letter ______ _______. 4. That you read English in the morning is very important. It is very important _____ you _____ _______ English in the morning. 5. He was so strong that he could lift the stone. （石头） He was strong _____ _____ ______ the stone. 6. His father went to Beijing for his holiday. His father went to Beijing ________ ______ his holiday. 7. They got up early so that they could get there in time. They got up early _____ ______ _______ ______ there in time. 8. His brother decided that he would buy the book. His brother decided _____ _______ the book. 9. He hopes that he can visit the Great Wall. He hopes _____ _______ the Great Wall. 10.I saw him go into the room. He was seen _____ ______ into the room. 11.We made him work five hours a day. He was made _____ ______ five hours a day. 12.Do you want to say anything for yourself? Do you have anything _____ _____ for yourself? 13.We don’t know what we shall do next. We don’t know what ____ _______ next. 14.I’m very sorry on hearing the bad news. I’m very sorry _____ _______ the bad news. 15.He stopped and had a look at me. He stopped _____ ______ a look at me. 16.I helped him with his English. I helped him _____ ______ English. 17.My father promised （许诺）that he would buy me a bike. My father promised ____ ______ me a bike. 18.The box is so heavy that I can’t carry it. The box is too heavy ______ me _______ _______. 19.“Lie down! ”the boy said to his dog. The boy ordered his dog ______ ______ down. 20.“Don’t make any noise ”s he said to me. She told me ______ _______ ________ any noise. 二. 单选： 1. This company was the first ____ portable radios as well as cassette tape recorders in the world. A. producing B. to produce C. having produced D. produced 2. The purpose of new technology is to make life easier ____it more difficult. A .not making B. not make C .not to make D. nor to make 3. Helen had to shout ______above the sound of the music .
动词不定式练习题及讲解说课讲解
动词不定式练习题及 讲解
动词不定式用法要点讲解 一、作主语 动词不定式作主语时，句子的谓语动词常用单数，其位置有以下两种： (1)把不定式置于句首。如： To get there by bike will take us half an hour. (2)用it作形式主语，把真正的主语不定式置于句后，常用于下列句式中。如： ①It＋be＋名词＋to do It's our duty to take good care of the old. ②It takes sb+some time+to do How long did it take you to finish the work? ③It＋be＋形容词＋for sb＋to do It is difficult for us to finish writing the composition a quarter of an hour. ④It＋be＋形容词＋of sb＋to do It is stupid of you to write down everything the teacher says. ⑤It seems(appears)＋形容词＋to do It seemed impossible to save money. 二、作宾语 ⒈不定式作宾语 ①以下动词后，只能跟不定式作宾语。如： agree,ask,aim,arrange,choose,decide,demand,expect,fail ,help,hope,lean,long manage,offer,plan,prepare,pretend,promise,refuse,wish等，这些词大部分可接 th at引导的从句。如： When our visit to the farm was over, we expected to start back on foot. When our visit to the farm was over, we expected that we would start back on foot. ②当复合宾语中的宾语是不定式时，先用形式宾语it代替不定式，把不定式置于补语之后，即：主语＋动词＋it＋补语＋to do句式。 He feels it his duty to help the poor. ③介词but,except,besides+to do(do) 在这种句型中，如介词前有动词do，后面应接不带to的不定式；如无do，则接to 不定式，即带do不带to，带to不带do。如： The enemy soldiers had no choice but to give in. ⒉部分动词后面，既可接动词不定式，也可接动名词作宾语，意义不变。如：begin,continue,start,hate,like,love,need,require,want等。 在need,require,want后接-ing形式，表示被动意义，也可接不定式，但要用被动形式，如：Your handwriting needs improving(tobe improved). hate,love,like接不定式表示特定的未来事件，接动名词表示目前正在进行的活动或一般的行为。 在下列情况下，一般要用不定式： ①hate,like,love前有would(should)时，如：I'd like to have a cup of coffee. ②当谓语动词begin,continue,start等是进行式时，如：Thestudents are starting to work on the difficult maths problem. ③begin,continue,start与know,understand等状态动词连用时，如：I soon began to understand what was happening. 3．advise,allow,encourage,forbid,permit等动词后接动名词作宾语，或带不定式作宾语补足语。如： Our teachers don't permit our/us swimming in the lake. Our teachers don't permit us to swim in the lake. 4．部分动词后接不定式或动名词时，意义差别较大，应根据句子语境选择使用。 ①forget,remember,regret后接不定式，表示现在或未来的动作，接动名词表示动作已经发生。如： We regret to tell you that all of you are not invited to attend the meeting. They regretted ordering these books from abroad. ②mean to do 打算做某事 ;mean doing 意味着…… ③try to do 设法尽力做某事; try doing 试着做某事 ④stop to do 停下一件事去做另一件事（不定式作目的状语）; stop doing 停止做某事 ⑤can't help doing 禁不住…; can’t to do不能帮助干…… ⑥go on to do 做不同的事或不同内容的事; doing 继续不停地做某事，指同一动作的继续 ⑦leave off to do 离开某地去干什么（目的状语）; leave doing停下某事 三、做表语 To be kind to the enemy is to be cruel to the people. 四、作定语 不定式在句中作定语，置于被修饰的名词或代词之后。如： Have you anything to be taken to your sister? 收集于网络，如有侵权请联系管理员删除
动词不定式的精讲与专项练习
动词不定式（The Infinitive） 一、概述 不定式是动词的一种非谓语形式，在句中不能单独作谓语。它有两种形式：（1）带to的不定式；（2）不带to的不定式（即通常所说的动词原形），它可以和助动词或情态动词构成谓语。不定式既有动词性质，又有名词性质。 1）不等式具有动词性质，即它有时态和语态的变化；可有自己的宾语或状语并构成不等式短语。如： Would you like to tell me an interesting story? 你可不可以给我讲一个有趣的故事？（不等式to tell有自己的宾语me和story）He was too clever a man to be fooled.他这个人很机灵，不会被愚弄的。（不等式的被动语态） I’m going to go there by bike. 我想骑自行车去那儿。（不定式有状语there） They will set up more primary schools in the countryside. 他们将在乡村修建更多的小学。（不带to的不等式与助动词will一起构成谓语）但是，不等式没有人称和数的变化，即不受人称和单数、复数的限定或影响。 She likes to play the accordion. 她喜欢弹奏手风琴。 She liked to play the accordion when she was young. 她很小就喜欢弹奏手风琴。 2）不等式具有名词性质，即它在句中可用作主语、宾语、表语等。如： To see is to believe. 百闻不如一见。（作主语） This suit doesn’t seem to fit me.这件衣服似乎不适合我穿。（作表语） She wanted to see which shops offered the best service. 她想看看哪家商店提供最好的服务。（作宾语） There’s no need to be worried. 不需要担心。（作定语） He went there to see what would happen.他去那儿是想看看会出什么事。（作状语） 3）不等式虽然在语法上不能有主语，但它表示的动作，在意思上是可以有自己的主语，在语法上这个主语称为不等式的逻辑主语。这个逻辑主语可能是整个句子的主语、宾语等，也可以用一个由for引起的短语表示。如： His friends tried to encourage him. 他的朋友设法鼓励他。（不等式的逻辑主语His friends同时也是句子的主语） Every year, tobacco companies must persuade new people to start smoking cigarettes. 每年烟草公司要设法使一些比吸烟的人开始吸烟。（不等式的逻辑主语new people是句子的宾语）It’s very difficult for a foreigner to learn Chines e. 外国人学汉语是很不容易的。（不等式的逻辑主语由for引起的短语表示） 另外，不等式的否定形式一般在它的前面直接加not或never。 The teacher has told me many times not to come late again.老师多次告诉我不要再来晚了。 She seems not to have a bright time with her new friends.和新朋友在一起她似乎过得不是太好。 二、不定式的主要用法 动词不等式具有名词、形容词及副词的特征，因此在句中可作主语、宾语、宾语（或主语）补足语、表语、定语、及状语等。 1、不定式作主语 ①不等式作主语时，谓语动词用单数形式。 To conquer English is not easy. 征服英语不容易。 To make plan firs t is a good idea. 先制定计划是个好主意。 To know everything is to know nothing. 事事皆通，无一精通。 ②不等式作主语时，常常用形式主语it替代，而将真正的主语不等式放在句子的后面。 It is necessary to master a foreign language.掌握一门外语很有必要。 It’s a great pleasure to see you again.再次见到你真高兴。 It is a bad manner to stare at a foreign guest.盯着外宾看是一种不良的举动。 ③如果说明不等式表示的动作是谁做的，可以在不等式的前面加一个for引起的短语，这就是常见的“It is adj./n. for sb. to do sth.”句式。如： It is good manners for an Arab to stand close to his friends when they are talking. 对阿拉伯人来说，交谈时站得离朋友近些是好的礼貌。 It is a great honor for us to be presented at the party.我们能来参加晚会，深感荣幸。 It will be a regret for us not to help him. 我们没有帮助他是个遗憾。 ④在某些形容词（如kind, good, nice, wise, unwise, clever, silly, wrong, right, foolish, stupid, careless, considerate, rude, naughty, impolite等）作表语时，不等式前常加一个以of引起的短语，来说明不等式指的是谁的情况。这就是常见的 “It is adj. of sb to do sth.”句式。如：
非谓语动词不定式动名词练习题
1. —What did you see just now? —I saw two _____ doctors _____ out of the house. A. women,come B. woman, came C. woman,coming D. women, to come 2. —_____ good news it is! The pandas are alive after the earthquake. —It’s so _____. A. What a, excited B. what, exciting C. How a, excited D. How, exciting 3. — Would you like to play table tennis with me? —I don’t feel like it. I would rather_____at home and watch TV. A stay B to stay C staying D stayed 4. She was surprised _____ me last night. A. to see B. see C. saw 5. —What's the matter? —I am having the trouble _____ who has taken my book. A. finding B. looking for C. finding out D. looking up 6. — What ______ news it was! — Yes, all of the children were _____. A. excited, exciting B. exciting, excited C. exciting, exciting D. excited, excited 7. — Why are you late? — My bike broke down. I had it _____. A. repaired B. repaires C. repair D. repairing 8. Colors can change our moods心情and make us _____ happy or sad, energetic or sleepy. A. to feel B. feeling C. felt D. feel 9. Would you mind _____ more slowly? I can’t follow you. A. speak B. spoke C. spoken D. speaking 10.It’s good habit _____ breakfast every day. A. had B. have C. has D. to have 11.Maria_____shy, but now she is quite outgoing. She has made lots of friends. A. was used to be B. is used to be C. was used to being D. used to be
不定式专题练习及答案
不定式专题练习 1. The teacher told them ________ make so much noise. A. don’t B. not C. will not D. not to tell sb. not to do sth. 告诉某人不做某事 2. Our master often told us _______ things for granted. A. not to have B. not to take C. didn’t take D. not to make take sth. for granted “把某事想当然”，是一个固定词组。Eg. You shouldn’t take it for granted that everyone should help you.你不要认为每个人都理应帮助你。 3. Tell him _______ the window. A. to shut not B. not to shut C. to not shut D. not shut 4. The boy wanted to ride his bicycle in the street, but his mother told him ______. A. not to B. not to do C. not do it D. do not to 不定式的省略要保留到to,否则就完整地表达，如:…but his mother told him not to do so. 5. Mrs. Smith warned her daughter ________ after drinking. A. never to drive B. to never drive C. never driving D. never drive warn sb not to do sth. 此处用never替代not. 6. The patient was warned _______ oily food after the operation. A. to eat not B. eating not C. not to eat D. not eating 7. The workers want us ________ together with them. A. work B. working C. to work D. worked 8. They would not allow him ________ across the enemy line. A. to risk going B. risking to go C. for risk to go D. risk going allow sb. to do sth. 允许某人做某事；risk doing sth冒险做某事 9. I saw him _______ out of the room. A. go B. had gone C. has gone D. goes see sth看见某人做某事 10. They knew her very well. They had seen her _______ up from childhood. A. grow B. grew C. was growing D. to grow 11. I’ve heard him _______ about you often. A. spoke B. speaks C. speak 12. Though he had often made his little sister _______, today he was made ______by his little sister. A. cry; to cry B. crying; crying C. cry; cry D. to cry; cry
动词不定式讲解
非谓语动词 一、英语句子需要遵循一个总原则：一个句子只能有一个动词。当一个句子必须要出现两个或两个以上的动词才能完整 表达一个意思时，为了不违法总原则，英语有四种处理方式： 1. 切分成两个或者多个句子 She is a girl. She likes English 2. 将一个谓语动词做主句，其余动词改成从句 She is the girl who likes singing. 3. 添加and, but, or, when, because, not only..but also, either..or 等连词变成并列结构 She got off the bus, but left her handbag on her seat. 4. 将其中一个动词变成非谓语动词形式 She got off the bus, leaving her handbag on her seat. 二、非谓语动词使用条件：一个句子当中，已经存在一个主句（谓语动词），又没有连词(and,but,or等)的情况下， 还有别的动词出现时，这时就要用非谓语动词 三、非谓语除了不能做谓语外，其他成分都可以做 不定式（to do） 四、非谓语动词三种形式分词现在分词（doing） 过去分词( done ) 动名词(doing) 五、非谓语动词解题技巧： 1. 判断是不是用非谓语动词（1.看有没有逗号 2.看有没有谓语 3.看有没有连词。要牢记英语中逗号不能连接两个 句子，一个句子如果没有连词只能有一个谓语） 2. 判断是主语和动词是主动还是被动关系 3. 判断时间, 确定非谓语动词和主句动词谁先发生，谁后发生 不定式的用法 不定式构成一般式完成式进行式 主动关系to do to have done to be doing 被动关系to be done to have been done 不定式动词和谓语动词发生的时间关系不定式的动作和谓语动作同时发生， 或发生谓语动作之后 he seems to know a lot 不定式的动作发生在谓语动 作之前 I regretted to have told you a lie. 不定式的动作和谓语 动作同时发生 I’m glad to be talking with you 不定式否定形式在to前加not. 即not to..... 不定式充当的成分主语，宾语，表语，定语，状语，宾补
高中动词不定式用法讲解及练习
Grammar Presentation---动词不定式 一、不定式的句法功能 ●不定式作主语 ?To learn a foreign language is not easy.学习外语不是一件容易的事。 ◎不定式短语作主语时，常用it作形式主语来代替它的位置，而将真正的主语（不定式短语）移到谓语之后 ?It’s a great honor to be invited to Mary’s birthday party.很荣幸被邀请参加玛丽的生日聚会。 ●不定式作宾语 ◎作动词宾语 ◇下列动词常接不定式作宾语，如：agree, arrange, ask, beg, choose, dare, decide, demand,expect, fail, fear, hope, manage, offer, plan, prepare, pretend, promise, ?They hope to find new resources for mankind.他们希望为人类找到新资源。 ◇如果不定式作宾语且有自己的补语，常用“it”作形式宾语，而把真正的宾语放在后面。 下列动词常用it作形式宾语，如：believe, consider, feel, find, know, make ?I know it impossible to finish so much homework in one day. 我知道在一天中完成这么多的作业是不可能的。 ●不定式作表语 ◎不定式作表语时，一般紧跟在系动词后，说明主语的内容 ?The first step is to check the victim’s breathing. 第一步是检查受害人的呼吸。 ●不定式作补语 ?I’d like the problem to be discussed at the next meeting.我希望这个问题在下一次会上讨论。 ●不定式作定语 ?The students have a lot of homework to do every day.学生们每天都有很多家庭作业要做。 ●不定式作状语 不定式可以作原因状语、结果状语、目的状语以及方式状语 不定式在下列句式中作目的状语：so as to do, in order to do ?In order to ensure your hair looks its best, pay attention to what you eat. 为了保证你的头发是最佳状态，请注意你的饮食。 二：不定式考点归纳： 考点1：不定式的时态和语态： 1.---Is Bob still performing? ---I’m afraid not. He is said ____the stage already as he has become an official. A. to have left B. to leave C. to have been left D. to be left 2.The news reporters hurried to the airport, only ____ the film stars had left. A. to tell B. to be told C. telling D. told 1．A. 根据句子的意思“据说他已经离开了舞台”，要用不定式的完成式的主动形式。2．B. 用动词的不定式的被动形式表示结果状语。 考点2：不定式的功能：不定式具有名词的特征，可以作主语或宾语（例5），具有形容词的特征，可以作表语、定语或补足语（例4）；具有副词的特征，在句子中可以作状语（例3）。