不带to的动词不定式通常有下面十八种情况

动词不定式通常带有符号to，叫做带to的动词不定式(infinitive with"to")，动词不定式有时不带符号to，叫做不带to的动词不定式(infinitive without"to")

一、与助动词do连用构成谓语动词的否定、疑问和强调形式。

(1)he does not work in the factory.

(2)Does she work here？

(3)I did not see her yesterday.

(4)Did they take you home?

(5)He does look

tired.

(6)They did come yesterday.

二、与情态动词连用构成复合谓语

(1)I can speak English.

(2)May I come in?

(3)Dare he swim across the river?

(4)We must work,and above all we must believe in ourselves.

(5)Could you do something for me?

(6)You shall go at once.

(7)He might be working in the office now.

(8)I don't think you need have come yesterday.

(9)They should be here by now.

(10)If you will go into the fields and turn over a few big stones,you are sure

to uncover a city of ant"people".

但与情态动词ought(to)连用时通常带to，和used(to)连用时必须带to 三、在表示感觉的动词如：see,,watch,hear,listen

to,feel,notice,observe,perceive(觉察，看见),behold（书面用语“见到”）等后用作宾语补足语的动词不定。

(1)I saw her cross the

street.

(2)He looked at the children walk up the hill.

(3)I watched the boy cross the road.

(4)I heard her play the piano.

(5)He listend to us talk.

(6)I felt the floor move.

(7)I didn’t notice you

enter.

(8)He observed someone open the door.

(9)I did not perceive anyone come in.

(10)He beheld her go out.

但除notice,watch不用被动语态外，上述动词变成被动语态时，其后的动词不定式就不省to

(1)She was seen to cross street.

(2)She was heard to play the piano.

四、使役动词make,let,have,bid, leave(=let)后作宾语补足语的动词不定式不带to

(1)You may take a horse to the water,but you can't make him drink.

(2)I'll let him do it.

(3)Don't forget to have them come.

(4)Bid him go home.

(5)Leave him go.

动词have通常不用于被动语态，make和bid可用于被动语态，let偶尔也可用于被动态，用作主语补足语的动词不定式通常带to，但在make和let后有时可以不带to

(1)John was made to wash the truck for a week as a punishment.

(2)He was made(to) laugh.

(3)The child was let(to) do it.

五、never与know连用其后作宾语补足语的动词不定式可省to，其时态多为完成时态。

(1)I never knew him act without thinking.

(2)I've never known it snow in July before.

(3)I had never known her ask for pity before.

有时ever与known连用也有上述用法。

(1)Have you ever known me tell a lie?

六、在find后作宾语补定语的动词不定式有时可以省to，但如动词为be，那么一般不省to，要省一起省略"to be"

(1)We found the farm crops(to) do well.

(2)I find the Chinese people to be happy and cheerful.

(3)I found this to be true in all the cities.

(4)We found him (to be) honest/dishonest.

七、在cannot but,cannot help but,can not choose but, had better(best),would(had)

rather(sooner)…than…, would as

soon…as…后的动词不定一般不带to

(1)When the country calls you for help,you cannot but go.

(2)He can't help but feel sorry for her.

(3)he cannot choose but obey.

(4)I had better leave now,or I'll be late.

(5)He had best buy it now while it is still available.

(6)I would rather go mountain—climbing than just take a walk.

(7)My aunt invited me to the movies,but I said I had rather go on a picnic with the girls.

(8)I had sooner live on a farm than in the city.

(9)He would sooner resign than take part in such dishonest

business deeds.

(10)I'd rather not tell you.

(11)He said he'd sooner die than betray his friend.

八、在but(=except),besides,than后的动词不定式一般要带to，但如果其前有作谓语的实义动词do，则不定式不带to

(1)The soldier has no choice but to obey.

(2)He did not have any choice but to obey.

(3)She did nothing but clean the dishes.

(4)The children found there was nothing they could do with their money,except spend it on sweets.

(5)There seemed nothing else to do but(to)send for a doctor.(but前的实义动词do不作谓语，but后的不定式可带to，也可不带to)

(6)He did nothing else than laugh.

(7)I could hardly do less than wait.

九、不定式作表语时，如主语部分含有实义动词do，且句子的时态为一般现在时或一般过去时(多为is或was)，不定式可以带to也可不带to

(1)What we must do now is(to) find anther person to help us.

(2)All he could do was (to) rush into the room.

如句子的动词时态不是一般现在时或一般过去时，作表语的动词不定式一般要带to

(1)She knew that all she would have to do would be to stop crying.

十、rather than位于句首时，其后用不带to的不定式，但rather

than在句中时，其后的动词不定式可以带to，也可以不带to

(1)Rather than ride on a crowded bus,he always prefers to ride a bicyde.

(2)Rather than cause trouble,he left.

(3)He prefers to rent a car rather than(to) have one of his own.

十一、在动词help后作宾语补足语的动词不定式可以带to，也可以不带，在英国英语中，多用不带to的不定式，但在英国英语中，help+宾语+不定式结构中，用不带to的不定式表示主语直接参与不定式的表示的动作，用带to的不定式表示主语没有直接参与不定式的表示的动作。

(1)He helped me repair the bicycle.

(2)He helped me to repair the bicycle.

(3)This kind of soap helps us to wash the clothes more easily.

(4)The book will help you to study English.

但在被动语态中，help后的不定式要带to(1)She was helped to repair her bicycle.

在help(to) do sth不定式符号to可省略。

He helped(to) repair the machine.

十二、两个或两个以上的动词不定式并列在一起时，第一个不定式带to，后面的不定式一般省去to

(1)Her job is to take care of the children and wash clothes.

(2)The girl doesn't know how to read and write.

但如果是在对照场合，则不省去to

(1)It is better to laugh than to cry.

(2)The purpose of new technologies is to make life easier,not to make it more difficult.

十三、than连接两个动词不定式没有对比关系时，后一个不定式可以省to

(1)You might do worse than(to) do as he does.

(2)I cannot do better than(to)get away for the few days.

下面句子中than连接的不是两个动词不定式than后的动词不定式通常要带to

(1)I know better than to believe him.

(2)The beaten enemy had no choice than to surrender.

下句中的more than(=only)可以看成复合副词，后面的动词不定式不带to

(1)I did not more than make a beginning.

十四、在why,why not后的不定式不带to

(1)Why spend such a lot of money?

(2)Why not join us?

(3)Why don't you smoke?

十五、实义动词dare在现代英语口语中，其所在的否定句或疑问句中，它后的动词不定式可省to，尤其在一般过去时中

(1)Does he dare

go?

(2)We do not dare speak.

(3)He did not dare

go.

(4)Did he dare go?

(5)He dared go.

(6)Dared he go?

(7)He knew she dared not open his mouth.

十六、在口语中，特别是在美国，祈使语气谓语动词和构成谓语的不定式go后面的不定式往往不带to

(1)Go ask her.

(2)I'll go see my brother.

这种用法在英国口语中比较少见，一般在动词go后用连词and

(1)GO and ask her.

(2)I'll go and see my brother.

十七、在"will you please…?"和would you please…?句型中，要用不带to的不定式。

(1)Will you please give the note to Tom?

(2)Will you please open the window?

(3)Would you please give me a hand?

十八、Better+动原(口语中用)

(1)Better ask them go astray.

(2)Better go at once.

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

不带to的动词不定式通常有下面十八种情况

不带to的动词不定式通常有下面十八种情况动词不定式通常带有符号to，叫做带to的动词不定式(infinitive with"to")，动词不定式有时不带符号to，叫做不带to的动词不定式(infinitive without"to") 不带to的动词不定式通常有下面十八种情况一、与助动词do连用构成谓语动词的否定、疑问和强调形式。 (1)he does not work in the factory. (2)Does she work here？ (3)I did not see her yesterday. (4)Did they take you home? (5)He does look tired. 二、与情态动词连用构成复合谓语 (1)I can speak English. (3)Dare he swim across the river? (4)We must work,and above all we must believe in ourselves. (5)Could you do something for me? (6)You shall go at once. (7)He might be working in the office now. (9)They should be here by now. (10)If you will go into the fields and turn over a few big stones,you are sure to uncover a city ofant"people". 但与情态动词ought(to)连用时通常带to，和used(to)连用时必须带to

动词不定式用法讲解·优选.

动词不定式的用法讲解一、动词不定式：构成：to + 动词原形（to只是不定式符号，没有意义）动词不定式作主语较长时，常用it作形式主语，而将真正的主语放在句末。 1.It + is/was+形容词+(for sb.) +动词不定式 To learn English well is useful. = It’s useful to learn English well.学好英语是有用的。 To protect environment is important for us. = It’s impor tant for us to protect environment.对于我们来说保护环境是很重要的。 2. It is / was + kind / good/ nice/ clever + of sb. + 动词不定式 It’s very kind of you to help me. 你帮助我真是太好啦。 It’s very clever of you to do like that. 你那样做真的太聪明啦。 3. It takes ( took , will take ) sb. some time to do something. (做某事花费某人…时间) 4.It is a good idea to do sth. 作宾语 1.常见的跟不定式作宾语的动词有： want to do sth. decide to do sth. hope to do sth. plan to do sth. offer to do sth. agree to do sth. learn to do sth try to do sth prefer to do sth promise to do sth. need to do sth. expect to do sth. 2. 主语+ find / think + it +形容词+ (for sb.) + to do I find it easy to read English every day. 我发现每天读英语和容易的。 He felt it hard to sleep.他觉得很难入睡。 I think it very interesting to learn English. 我认为学英语很有趣。 We found it impossible to cross the river. 我们发现过河是不可能的。 3.特殊疑问词+动词不定式作宾语 Can you tell me how to get to the post office? I didn’t know what to do next.

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）

不定式什么时候不带to

动词不定式何时不带to? 在英语中，常见的不定式是带to的不定式，但在某些情况下，要使用不带to的不定式。关于这类不带to的不定式，在使用时极易出错，因此，只有经常注意分析此类语言现象，才能达到正确理解的目的。现将不带to的不定式的几种情况列举如下：一、在“动词＋宾语＋不定式”结构中，如果动词是表示感官意义的，如see，feel，hear，observe，notice，watch， listen to，look at等等，其后作宾语补足语的动词不定式结构不带to。例如： Did you see him go into the house？你看到他进入那座房子了吗？ She looked at（watched）other people play basketball．她在观看别人打篮球。 I didn't notice anyone enter the room．我没注意到有人进入那房间。 He listened to us talk．他听我们谈话。二、在使役动词make，let，have等之后，作宾语补足语的不定式结构不带to。例如： John made her tell him everything．约翰叫她把一切事情都告诉他。 The soldier had him stand with his back to his father．士兵要他背对他父亲站着。 Let me do it．让我来做。注意：当这类动词转换为被动语态时，后面不带to的动词不定式要转换为带to的动词不定式（但have一般不用于被动句）。但当句子的动词为let时，to仍可省略。例如： The boy was seen to go into the house．有人看到那男孩走进那座房子。 They were made to work day and night．他们被迫日夜干活。 The prisoners were let go．罪犯被释放了。三、在help后面可以接带to或不带to的不定式。例如： Can I help（to）carry it for you？我可以帮你拿这个吗？ They helped（to）carry the boxes upstairs．他们帮忙把箱子搬上楼去。四、当介词except，but后接不定式时，如果except，but前面含行为动词do或do的各种词形时，不定式一般不带 to。例如： There was nothing to do but wait till he came back．没有办法只好等他回来。 He will do anything except lend you money．他决不会借钱给你。如果except，but前面没有do这一动词或do的各种词形时，不定式一般都带to。例如： There's no choice but to wait for the rain to stop．没有别的选择，只好等雨停下来。五、在“Why．．．？”或“Why not．．．？”结构中，紧接其后的动词不定式总是不带to。例如：

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）。

动词不定式的用法荟萃

动词不定式的用法荟萃不定式在句子中可做主语、宾语、表语、定语、状语和宾语补语。 1)不定式做主语一般表示具体的某次动作。【例如】 To complete the 30storied building in one year was quite a difficult task. To do that implies taking responsibility. 当主语较长，谓语较短时，常用it做形式主语，而将不定式放到谓语的后面。【例如】 It is important for modern young people to master at least two foreign languages. It做形式主语，不定式放在谓语动词之后常用于下列结构中： a) It is＋形容词(easy, important, difficult, foolish,

inconvenient, unnecessary, right, wrong...)＋( for/of sb.)＋不定式【例如】 It is essential to reserve a table in advance of Christmas Eve. hard to put my hopessintoswords. It is not easy to catch fish with your hands only. It is important for us young people to learn English and master it. b) It is＋名词(a pleasure, a pity, a pleasant thing, one’s du ty, an honor, a shame, a crime, no easy job...) ＋不定式 It is a sheer waste of time to read that kind of trash. It is a pity to have to go without her. It is a glorious death to die for the people.

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

动词不定式用法讲解

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