不带to的动词不定式通常有下面十八种情况
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 hisfather．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。
省略to的动词不定式情况举例
省略to的动词不定式情况举例以下是小编为大家列举的省略to 的动词不定式情况，希望能帮助大家更好地认识不定式，提高英语水平。
1) 情态动词 ( 除ought 外，ought to)：2) 使役动词 let, have, make：3) 感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后作宾补，省略to。
注意：在被动语态中则to 不能省掉。
I saw him dance.=He was seen to dance.The boss made them work the whole night.=They were made to work the whole night.4) would rather，had better：5) Why… / why not…：6) help 可带to，也可不带to, help sb (to) do sth：7) but和except：but前是动词do时，后面出现的动词用不带to的动词不定式。
8) 由and, or和than连接的两个不定式，第二个to 可以省去：9) 通常在discover, imagine, suppose, think, understand等词后，可以省去to be：He is supposed (to be) nice. 他应该是个好人。
举例：He wants to do nothing but go out.He wants to move to France and marry the girl.比较： He wants to do nothing but go out.He wants to believe anything but to take the medicine.典型例题1) ---- I usually go there by train.---- Why not ___ by boat for a change?A. to try goingB. trying to goC. to try and goD. try going答案：D. why not 后面接不带to 的不定式，因此选D。
不带to的不定式
不带to的不定式不带to的不定式1)在表示生理感觉的动词后的不定式不带to。
这类词有:feel 觉得 observe 注意到,看到 overhear听到watch注视 listen to听perceive察觉,感知notice注意 see看见 look at看 hear听On seeing the young child fell into the lake,Eric sprang to his feet,and went on the rescue.2)另一类是某些使役动词,如make, let,have等。
如:Let him do it.让他做吧。
I would have you know that I am ill.我想要你知道我病了。
(注):①上述感觉动词与使役动词转换为被动结构时.其后的不定式一般需带to,如: He was seen to come.The boy was made to go to bed early.②在动词find与help之后,不定式可带to亦可不带to,如:He was surprised to find the sheep (to) break fence at this season.他发现羊在此季节越出栅栏,感到惊讶。
3)在do nothing/anything/everything but(except)结构中。
例如:Last night I did nothing but watch TV.昨天晚上,我除了看电视别的什么也没有干。
但是,如果谓语动词不是“do nothing,anything,everything”,那么but(except)所跟的不定式则仍须带。
The doctor told him nothing but to stop smoking.医生除了让他戒烟,其它什么都没有说。
There was nothing for them to do but to remain silent.除了保持沉默以外,他们没有别有别的办法。
动词不定式省略to的9种情况
动词不定式省略to的9种情况不定式省略to的九种情况一、使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
I don’t like milk, but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公园门口等我。
注意：1. 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2. force, oblige等虽然也表示2. force, oblige“使”，但它们后用作宾语补足语的不定式必须带to。
如：He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to。
如：I watched her get into the car. 我看着她上了车。
I saw the woman enter a bank. 我看见这个女人进了一家银行。
We often hear her sing this song. 我们经常听到她唱这首歌。
Did you notice her leave the house? 她离开屋子你注意到了吗?注意：1. 这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：The woman was seen to enter a bank. 有人看见这个女人进了一家银行。
不定式省略to的九种情况
不定式省略to的九种情形一.使役动词后省略to的情形在let, make, have等使役动词后用作宾语补足语的不定式必须省略to等使役动词后用作宾语补足语的不定式必须省略to.如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看片子的.I don’t like milk, but mother made me drink it. 我不爱好牛奶,可是母亲强制我喝.I would have him wait for me at the gate of the park. 我要他在公园门口等我.留意：1. 当使役动词用于自动语态时,要补上在自动语态中省略的to(主如果指make,let和have很罕用于自动语态).2. force, oblige等固然也暗示“使”,但它们后用作宾语补足语的不定式必须带to.如：He forced me to go with them. 他迫使我同他们一路去.The police obliged him to leave. 警方强制他分开.二.感到动词后省略to的情形在感到动词后用作宾语补足语的不定式必须省略to在感到E: 10.5pt; mso-ascii-font-family: 'Times New Roman';mso-bidi-font-family: 'Times New Roman'">.如：I watched her get into the car. 我看着她上了车.I saw the woman enter a bank. 我看见这个女人进了一家银行.We often hear her sing this song. 我们经常听到她唱这首歌.Did you notice her leave the house? 她分开房子你留意到了吗?留意：1. 这里所说的感到动词重要包含see, hear, observe, notice, feel, watch等.但是它们用于自动语态时,厥后的不定式必须带to.如：Th 'Times New Roman'">有人看见这个女人进了一家银行.但是,用于以上句型的动词notice 和watch平日不必于自动语态.2. 相似地,动词look at和listen to后用作宾语补足语的不定式也不带to.如：We listened to the old man tell his story. 我们听这位白叟讲述他的阅历.3. 若动词feel后用作宾语补足语的不定式为 to be,则要带 to be to(其他情形不带 to).如：They felt the plan to be unwise. 他们以为这个筹划不明智.4. 若不定式为完成式,平日应带 to.如：.如：I noticed her to have come early. 我留意到她来得很早.三.动词help后省略to的情形在动词help后用作宾语或宾语补足语的不定式可以不带to.如：Can I help (to) carry this heavy box? 我可以辅佐扛这个重箱子吗？Mother helped me (to) do my homework. 妈妈帮忙我做功课.留意：1. 当 help 之后接一个较长的名词词组作宾语或当个中的不定式所暗示的动作主语不直接介入时,不定式平日带to.如：Help the little boys at the back of the hall to carry the chairs out. 请帮大厅后面那些小男孩把椅子搬出去.请帮大厅后面那些小男孩把椅子搬出去.These tablets will help you to sleep. 这些药片将对你的睡眠有帮忙.2. 在当help用于自动语态时,不定式前的to不克不及省略.如：The boy was helped by awoman to collect his scattered coins. 那男孩由一个妇女帮他捡拾狼藉一地的货币.四.why (not)…后省略to的情形在why (not)…?之后的不定式不克不及带to.如：Why go with him? 为什么要同他一路去？Why not ask the teacher? 为什么不去问问先生？Why not try to expand your story into a novel? 你怎么不把你的故事扩大成小说呢?五.动词know后省略to的情形在“know+宾语+不定式”中,不定式有时省略 to,有时不省,可分以下两种情形评论辩论：1. 若 know 为如今式,该构造中的不定式只限于 to be,且个中的to不克不及省略.如：I know him to be ill. 我知道他病了.We knew her to be honest. 我们知道她是说谎的.2. 若know为完成式或曩昔式,则该构造中的不定式可以用除 to be外的其他动词,且此时个中的to可以省留.如：I never knew him (to) do such a thing. 我从未据说他会干那种事.We’ve never known him (to) tell a lie. 我们从未据说他撒过谎.I’ve never known it (to) snow in July before. 我从未据说过有七月下雪的事.但在自动语态中不定式前的to不克不及省略.如许用的know 不但仅暗示一般意义的“知道”,而是暗示一种阅历,是以常译为“曾“……过”(用于确定句时)或“(从来)没有……过”(用于否认句时)..六.介词except / but后省略to的情形用作介词except, but宾语的不定式有时带tw Roman'">except, but,有时不带to.其大致原则是：若其前消失了动词 do,厥后的不定式平日不带 to;若其前没有消失动词 do,则厥后的不定式平日带 to.如：I had no choice but to wait. 除了等,我没有此外选择.He wanted nothing but to stay there. 他只想留在那儿.It had no effect except to make him angry. 除惹他朝气外,没产生任何后果.She can do everything except cook. 除了做饭之外她什么都邑.七.主语带do表语省略to的情形当主语部分有动词do的某种情势时,用作表语的不定式可以省略to.如：All you do now is (to) complete the form. 你如今要做的只是把这张表填好.The only thing to do now is (to) go on. 进步是如今独一的出路.What I’ll do is (to) tell her the truth. 我要做的就是告知她本相.八.并列不定式省略to的情形当两个或多个感化雷同的不定式并列时,平日只需在第一个不定式前用to,其余不定式前的to可以省略.如：He told me to staythere and wait for him. 他叫我在那儿等他.I’m really puzzled what to think or say. 我真不知该怎么想怎么说.我真不知该怎么想怎么说.It is easier to persuade people than (to) force them. 说服人轻易,强制人难.但是,假如两者有比较关系,则后面不定式前的to不成省略.如：To try and fail is better than not to try at all. 测验测验而掉败总比不测验测验好.九.省略不定式是否保存to在必定的高低文中,为了防止反复,有时不定式可以省略,但平日保存不定式符号to.如：I shall go if I want to. 假如我想去就去.“Don’t be late.” “I’ll try not to.” “不要来晚了.”“我尽量不来晚.”Don’t go till I tell you to. 等我叫你走你再走.留意：1.若被省略的不定式为to be短语,则平日应保存to be.如：He is not the man he used to be. 他已不是本来的谁人样子了.2. 有时省略不定式时,同时也可省略to.如：">toShe may go if she likes (to). 她想去就可以去.动词不定式省略to的情形：（1）不定式在感不雅动词（see, notice, look at, listen to, hear, watch, feel, observe）.使役动词（let, make, have）后作宾语补足语时,平日省去to.如：I have my students come early.（2）不定式在help后作宾补时,可带to,也可省略to.如：I helped him（to）find his lost watch.留意：以上两种情形变成自动语态时要加上to.如：She was seen to go into the classroom.（3）假如两个或多个不定式并列应用时,常在第一个不定式前面加to,后面一般都省略.如：To try and fail is better than not to try at all.6. “疑问词＋不定式”构成的不定式短语在句中可以作主语.宾语和表语.如：She told me when to start.四.接如今分词作宾补的20个经常应用动词bring sb. doing sth.引起或人做某事 catch sb. doingsth. 碰上（撞上）或人做某事discover sb. doingsth. 发明或人做某事 feel sb. doingsth. 感到或人做某事find sb. doingsth. 碰上（撞上）或人做某事 get sb. doingsth. 使或人做某事have sb. doingsth. 使或人做某事hear sb.doingsth. 听见或人做某事keep sb. doingsth. 使或人不断地做某事 listen to sb. doingsth. 听或人做某事look at sb. doingsth. 看着或人做某事 notice sb. doingsth. 留意到或人做某事observe sb. doingsth. 不雅察或人做某事 prevent sb. doingsth. 阻拦或人做某事see sb. doingsth. 看见或人做某事 send sb. doing sth.使或人（忽然）做某事set sb. doingsth. 使（引起）或人做某事 start sb. doingsth. 使或人开端做某事stop sb. doingsth. 阻拦或人做某事watch sb. doingsth. 不雅五.接动词本相作宾补的11个经常应用动词feel sb. dosth. 感到或人做某事 have sb. dosth. 使或人做某事hear sb. dosth. 听见或人做某事 let sb. do sth.让或人做某事listen to sb. dosth. 听着或人做某事 look at sb. dosth. 看着或人做某事make sb. dosth. 使或人做某事 notice sb. dosth. 留意或人做某事observe sb. dosth. 不雅察或人做某事 see sb. dosth. 看见或人做某事watch sb. dosth. 不雅察或人做某事。
九类不带to的动词不定式
九类不带to的动词不定式（一）作使役动词let, have, make的宾语补足语的动词不定式不带to。
例如：She let her child play in the park. 她让她的孩子在公园里玩耍。
I had him arrange for a car. 我叫他给我安排了一辆车。
She made her children wash their hands before eating. 她要她的孩子们在吃东西前洗手。
注意：当使役动词make用于被动语态时，则该动词必须加上to。
例如：He was made to leave school by his father's death. 由于他爸爸的死，他被迫离开了学校。
（二）作感官动词see, watch, hear, feel, notice, observe等的宾语补足语的动词不定式不带to。
例如：I saw him cross the street. 我看见他横穿马路。
I felt the ship roll. 我们感觉船在摇晃。
注意：当此类动词用于被动语态时（watch一般不用于被动语态），则充当主语补足语的动词不定式要带动词不定式符号to。
例如：He was seen to enter the office. 有人看见他进了办公室。
（三）why (not) + 不带to的动词不定式。
例如：Why not come and see me tomorrow? 明天来找我怎么样？（四）had better + 不带to的动词不定式。
例如：You'd better go now. 你最好现在走。
（五）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toRather than ride on a crowded bus,he always prefers to ride a bicycle. He prefers to rent a car rather than(to) have one of his own.（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"We found the farm crops(to) do well.I find the Chinese people to be happy and cheerful.I found this to be true in all the cities.（七）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toThe soldier has no choice but to obey.He did not have any choice but to obey.She did nothing but clean the dishes.（八）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toHer job is to take care of the children and wash clothes.（九）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。
不定式省略to的10种情况
不定式省略to的几种情况一、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.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。
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, look 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。
不定式省略to的九种情况
不定式省略to的九种情况一、使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
I don’t like milk, but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公园门口等我。
注意：1. 当使役动词用于主动语态时，要补上在主动语态中省略的to(主要是指make，let和have 很少用于主动语态)。
2. force, oblige等虽然也暗示“使”，但它们后用作宾语补足语的不定式必须带to。
如：He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to在感觉E: 10.5pt;mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">。
如：I watched her get into the car. 我看着她上了车。
I saw the woman enter a bank. 我看见这个女人进了一家银行。
We often hear her sing this song. 我们经常听到她唱这首歌。
Did you notice her leave the house? 她离开屋子你注意到了吗?注意：1. 这里所说的感觉动词主要包含see, hear, observe, notice, feel, watch等。
不定式省略to的九种情况
不定式省略to的九种情况不定式省略to的九种情况一、使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
I don’t like milk, but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公园门口等我。
注意：1. 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2. 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：He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to在感觉E: 10.5pt; mso-ascii-font-family: 'Times New Rom an'; mso-bidi-font-family: 'Times New Rom an'">。
如：I watched her get into the car. 我看着她上了车。
I saw the woman enter a bank. 我看见这个女人进了一家银行。
We often hear her sing this song. 我们经常听到她唱这首歌。
Did you notice her leave the house? 她离开屋子你注意到了吗?注意：1. 这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。
动词不定式省略to的9种情况
不定式省略to的九种情况一、使役动词后省略to的情况在let,make,have等使役动词后用作宾语补足语的不定式必须省略to。
如：Mymotherwouldn’tletmegotothefilm.我妈妈不会让我去看电影的。
Idon’tlikemilk,butmothermademedrinkit.我不喜欢牛奶，可是母亲强迫我喝。
Iwouldhavehimwaitformeatthegateofthepark.我要他在公园门口等我。
注意：1.当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2.force,oblige等虽然也表示2.force,oblige“使”，但它们后用作宾语补足语的不定式必须带to。
如：Heforcedmetogowiththem.他迫使我同他们一起去。
Thepolice obligedhimtoleave.警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to。
如：Iwatchedhergetinto thecar.我看着她上了车。
Isawthewomanenterabank.我看见这个女人进了一家银行。
Weoftenhearhersingthissong.我们经常听到她唱这首歌。
Didyounoticeherleavethehouse?她离开屋子你注意到了吗?注意：1.这里所说的感觉动词主要包括see,hear,observe,notice,feel,watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：Thewomanwasseen toenterabank.有人看见这个女人进了一家银行。
但是，用于以上句型的动词notice和watch和通常不用于被动语态。
2.类似地，动词lookat和listento 后用作宾语补足语的不定式也不带to。
如：Welistenedtotheoldmantellhissto r y .我们听这位老人讲述3.若动词feel 后用作宾语补足语的不定 式为t o b e ，t o (其他情to)。
英语中不定式省略to的10种情况
英语中不定式省略to的10种情况一、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.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。
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, look 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。
省略to的动词不定式
"大家都知道在动词不定式to do中，“to”是不定式的标志，有了这个to，后面所跟的动词该用原形。
但是to也有可以省略的时候，这个时候虽然没有了to，后面所跟的动词依然用原形。
今天的每日一课就给大家总结一些省略to的动词不定式。
1、情态动词（除ought 外）后的to已省略。
例：You must go to the hospital first. 你必须先去医院。
I can swim well. 我能游得很好。
2、使役动词let, have, make后，感官动词see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等词后的to省略。
例：He made the baby crying all night long. 他让那个婴儿哭了一整夜。
Let it be. 就这样吧。
when I passed by, I saw the girl picking the flowers. 我经过的时候，看见那个女孩在摘花。
注意：在这些词的用法中，用于被动语态时不能省去to。
例：I saw him dance. 我看见他跳舞。
=He was seen to dance.The boss made them work the whole night. 老板让他们整夜干活。
=They were made to work the whole night.3、would rather/had better 后的to省略。
例：I would rather go to Japan than the USA.我宁愿去日本也不想去美国。
You had better take a hat with you.你最好带上一顶帽子。
4、why…/why not…句型中not后to省略。
例：why not come to my home for a dinner tonight？今晚何不来我家吃顿饭。
中考英语 不定式省略to的10种情况
不定式省略to的10种情况2009-12-30 11:32:34 来源：编辑：点击：次年终奖：你的年终奖到手了吗？冷暴力口语，你伤父母心了吗？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.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。
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, look 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。
高考英语省略to的动词不定式八种情况
高考英语省略to的动词不定式八种情况一、感觉动词后省略to的情况主语+ (四看see/watch/notice/look at,三使役let/make/have，两听listen to/hear, 一感觉feel)+宾语+do sth，省略to。
1. 在感觉动词后用作宾语补足语的不定式必须省略to。
1）这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：The woman was seen to enter a bank. 有人看见这个女人进了一家银行。
但是，用于以上句型的动词notice 和watch和通常不用于被动语态。
2）类似地，动词look at和listen to后用作宾语补足语的不定式也不带to。
如：We listened to the old man tell his story. 我们听这位老人讲述他的经历。
3）若动词feel后用作宾语补足语的不定式为to be，则要带to(其他情况不带to)。
如：They felt the plan to be unwise. 他们认为这个计划不明智。
4）若不定式为完成式，通常应带to。
如：I noticed her to have come early. 我注意到她来得很早。
2. 使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
1) 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2) 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：He forced me to go with them. 他迫使我同他们一起去。
动词不定式省略to的9种情况
动词不定式省略to的9种情况不定式省略to的九种情况一、使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
I don’t like milk, but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公园门口等我。
注意：1. 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2. force, oblige等虽然也表示2. force, oblige“使”，但它们后用作宾语补足语的不定式必须带to。
如：He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to。
如：I watched her get into the car. 我看着她上了车。
I saw the woman enter a bank. 我看见这个女人进了一家银行。
We often hear her sing this song. 我们经常听到她唱这首歌。
Did you notice her leave the house? 她离开屋子你注意到了吗?注意：1. 这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：The woman was seen to enter a bank. 有人看见这个女人进了一家银行。
2018届二轮复习不带to的不定式的用法总结共18张
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教学分析
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9.在 make do (凑合着用)，make believe (假装）， let be (听任），let go of (放开），hear say (听人 说起）等短语中，不定式常常不带to。
Have you ever heard say such a thing? 10.当主语部分含有动词do的某种形式时，作表 语的不定式可省略to。
教学分析
教学设计
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3．If you find something you love doing outside of the office，you'll be less likely ________ (bring) your work home.
to bring句意：如果你在办公室外面发现了你喜 欢做的事情，你就不太可能把工作带回家去做。 be likely to do sth.“可能做某事”。
教学分析
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5．For 25 days，she never left her baby，not even to find something ________ (eat)!
to eat句意：她25天都没有离开过她的孩子， 甚至没找吃的东西。修饰不定代词something
把此用法准确的应用到习题中。
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1.see, observe, notice, watch, look at, hear, listen to, feel后接不定式作宾补，不定式常常省略to。
Come and watch me do it.
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 looktired.(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 sureto 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,listento,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。
省略to的不定式 Microsoft Office Word 97 - 2003 文档
省略to的不定式。
一、不带to的不定式常见于以下几种情况：1.如果主语是all或是what引导的从句，主语受first, only, one, least或形容词最高级修饰,且后面的从句或短语中有实意动词do时，作表语的不定式前不用to。
如:The only thing I can do was keep silent.What he wants to do is complete the whole task as soon as possible.All he does is study hard.all作主语时，如果从句含有say，其后作表语的动词不定式有时可以省略to。
如：All they say is hurry up.但在其他情况下，to不能省略。
如：All I wanted was to help him.2.在一些固定搭配中，如：let go，make believe，go hang等，不用to。
如：We'll have to make do with dry bread. He made believe he was innocent. They can't let things go hang.3.在would rather，would sooner(宁愿……也不)，might (just) as well，cannot help but，cannot but (不得不)，do nothing besides，do nothing but，do nothing than，had better，had best等结构后，用不带to的不定式。
The soldiers would rather die than surrender.I cannot but decline his offer.He did nothing else than cry.4. rather than，sooner than (宁愿……也不)位于句首时，其后的动词不用to。
动词不定式略to的9种情况
不定式省略to的九种情况一、使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn't let me go to the film. 我妈妈不会让我去看电影的。
I don't like milk, but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公1. 当使役动词用于被动语态时，要补上在主动语态中省略园门口等我。
注意：的to(主要是指make，let和have很少用于被动语态)。
2. force, oblige等虽然也表示2. force, oblige“使”，但它们后用作宾语补足语的不定式必须带to。
如：He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to。
如：I watched her get intothe car. 我看着她上了车。
I saw the woman enter a bank. 我看见这个女人进了一家银行。
We often hear her sing this song. 我们经常听到她唱这首歌。
Did you notice her leave the house? 她离开屋子你注意到了吗?注意：1. 这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：The woman was seen to enter a bank. 有人看见这个女人进了一家银行。
不带to的不定式
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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 looktired.(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 sureto 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,listento,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 thestreet.(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 youenter.(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 assoon…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 dishonestbusiness 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ratherthan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 darego?(2)We do not dare speak.(3)He did not darego.(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。