用形容词比较级和最高级各造十个英语句子
I want to go away.to go away就是不定式不定式一般指to do这种结构，一般表示目的==========================================详细的介绍如下：参考来源：[编辑本段][（动词）不定式的简介] 1. 不定式定义:由to＋动词构成。
不定式是一种非限定性动词。
而非限定动词是指那些在句中不能单独充当谓语的动词，可分为不定式，动名词，现在分词和过去分词。
2.用途： 在句中不能作谓语。
它具有动词的性质，本身可以带宾语和状语。
【动词不定式】 1.定义：动词 + 不定式 2.用途： 动词不定式在句中可以作句子任何成分。
动词不定式的被动形式除了一般形式外还有其完成式和进行式。
[编辑本段][动词不定式的时态、语态] 动词不定式可以作以上各种成分，但它毕竟是动词，所以有动词的属性 动词不定式及其短语还可以有自己的宾语、状语，虽然动词不定式在语法上没有表面上的直接主语，但它表达的意义是动作，这一动作一定由使动者发出。
这一使动者我们称之为 逻辑主语，其形式如下： 主动形式 被动形式 一般式 （not) to make （not) to be made 完成式 （not) to have made ( not) to have been made 进行式 （not) to be making （not） to have been making (1)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's a great honour to be invited to Mary's birthday party.（不定式作主语） It was impossible for lost time to be made up.（不定式作主语） I wish to be sent to work in the country.（不定式作宾语） Can you tell me which is the car to be repaired?（不定式作定语） He went to the hospital to be examined.（不定式作状语） 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 t ake 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.) (2)时态 1) 现在时：一般现在时表示的动词，有时与谓语动词表示的动作同时发生，有时发生在谓语动词的动作之后。
He seems to know this. I hope to see you again. = I hope that I'll see you again. 我希望再见到你。
2) 完成时：表示的动作发生在谓语动词表示的动作之前。
I'm sorry to have given you so much trouble. He seems to have caught a cold. 3) 进行时： 表示动作正在进行，与谓语动词表示的动作同时发生。
He seems to be eating something. 4) 完成进行时： She is known to have been wreaking on the problem for many years.[编辑本段][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： ①When to leave for London has not been decided yet. （不定式在句子中做主语） ②Mr. Smith didn't know whether to leave or stay there. （不定式在句子中做宾语） ③I asked Professor Xu how to learn English well. （不定式在句子中做间接宾语） ④The question was where to get the medicine needed. （不定式在句子中表语） 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。
如：①When we shall leave…③…how I could learn… 经常在这种结构中使用的动词有：consider,decide,discover,explain,find out,forget,hear,know,lea rn,observe,understand,wonder等。
[编辑本段][动词不定式的语法功能] 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 compositionin a quarter of an hour. ④It＋be＋形容词＋of sb＋to do It is stupid of you to write down everything the teachersays. ⑤It seems(appears)＋形容词＋to do It seemed impossible to save money. 在句型③中，常用表示客观情况的形容词，如：difficult,easy,hard,important,impossible,necessary 等；在句型④中，常用careless,clever,good,foolish,honest,kind,lazy,nice,right,silly,stupid,wise等 表示赞扬或批评的词。
在不定式前的sb，可看作其逻辑主语。
这一句式有时相当于Sb is＋形容词＋to do句式 ，如：It'skind of you to help me with my English.=You are kind to helpme with my English. (3)举例 1） It's easy (for me) to do that.我做这事太容易了 easy, difficult, hard, important, possible, impossible, comfortable, necessary, better; the first, the next, the last, the best, too much, too little, not enough It's so nice to hear your voice. 听到你的声音真高兴。
It's necessary for you to lock the car when you do not use it. 当你不用车的时候，锁车是有必要的。
2) It's very kind of him to help us. 他帮助我们，他真好。
Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, selfish(自私的) 例句: It was silly of us to believe him. 我们真愚蠢，竟然相信了他。
It seemed selfish of him not to give them anything. 他不给他们任何东西，这显得太自私了。
注意：1) 其他系动词如，look，appear等也可用于此句型 2) 不定式作为句子成分时，动词用单数形式。
3) 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. 二、作宾语 1) 动词+ 不定式 afford. aim. appear. agree. arrange . ask . be . decide. bother . care . choose . come. dare. demand. desire. determine . expect. elect . endeavor .hope. fail . happen . help . hesitate .learn . long . mean. manage . offer . ought. plan . prepare. pretend . promise. refuse. seem. tend. wait . wish. undertake. 举例： The driver failed to see the other car in time. 司机没能及时看见另一辆车。
I happen to know the answer to your question. 我碰巧知道你那道问题的答案。
2）动词+不定式 ；动词+宾语+不定式 ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish… I like to keep everything tidy. 我喜欢每件东西都保持整洁。
I like you to keep everything tidy. 我喜欢你使每件东西都保持整洁。
I want to speak to Tom. 我想和汤姆谈话。
I want you to speak to Tom. 我想让你和汤姆谈话。
3） 动词+疑问词+ to decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell Please show us how to do that. 请演示给我们如何去做。
There are so many kinds of tape-recorders on sale that I can't make up my mind which to buy.有这么多的录音机，我都拿不定主意买哪一种。
注意:疑问词带不定式在句中作成分时，谓语动词用单数。
The question is how to put it into practice. 问题是怎样把它付诸实施。
4)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,learn,long,manage,offer,plan,prepare, pretend,promise,refuse,wish 等，这些词大部分可接that引导的从句。
如： I decided to ask for my money back. I decided that I would ask for my money back. When our visit to the farm was over,we expected to startback on foot. When our visit to the farm was over, we expected that wewould start back on foot. 5)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。
如： We think it quite important for us to learn a foreignlanguage well. He feels it his duty to help the poor. 三、作补语 1) 动词+宾语+不定式(to do) advise allow appoint believe cause challenge command compel consider declare drive enable encourage find forbid force guess hire imagine impel induce inform instruct invite judge know like order permit persuade remind report request require select send state suppose tell think train trust understand urge warn 例句： a. Father will not allow us to play on the street. 父亲不让我们在街上玩耍。
b. We believe him to be guilty. 我们相信他是有罪的。
Find 的特殊用法： Find 后可用分词做宾补，或先加形式宾语，再加形容词，最后加带to 的动词不定式。
find后也可带一个从句。
此类动词还有get，have。
I found him lying on the ground. I found it important to learn. I found that to learn English is important. 典型例题: The next morning she found the man ___ in bed，dead. A. lying B. lie C. lay D. laying 答案：A.find的宾语后面，用分词或分词短语，起宾语补足语作用。
现在分词表达主动，也表达正在进行，过去分词表达被动。
2) to + be 的不定式结构，作补语的动词。
Acknowledge, believe, consider, think, declare(声称), discover, fancy(设想), feel find, guess, judge, imagine, know, prove, see(理解), show, suppose, take(以为), understand We consider Tom to be one of the best students in our class. 我们认为汤姆是班上最好的学生之一。
典型例题 Charles Babbage is generally considered ___ the first computer. A. to invent B. inventing C. to have invented D. having invented 答案：A. 由consider to dosth. 排除B、D。
. 此句只说明发明这一个事实，不定式后用原形即可。
而C为现在完成时，发明为点动词一般不用完成时，且此处也不强调对现在的影响，因此不选C。
3) to be +形容词 Seem, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean… The book is believed to be uninteresting. 人们认为这本书没什么意思。
4) there be+不定式 believe, expect, intend, like, love, mean, prefer, want, wish, undrstand We didn't expect there to be so many people there.我们没料到会有那么多人在哪里。
有些动词需用as 短语做补语，如regard, think believe, take, consider. We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。
Mary took him as her father . 玛丽把他当作自己的父亲。
四、作表语 不定式作表语表示具体动作或将来动作；动名词作表语表示抽象的一般行为。
①To be kind to the enemy is to be cruel to the people. ②My chief purpose is to point out the difficulties ofthe matter. ③What I would suggest is to put off the meeting. 当主语和表语都是不定式时，其含义一是条件，一是结果（例①）。
当主语是aim,duty,hope,idea,mista ke,plan,purpose,suggestion等为中心词的名词词组（例②）时，或以what引导的名词性分句（例③），不定 式说明主语的内容。
④Our work is serving the people. ⑤What he likes is taking a walk after supper. ⑥The story told by Mr.Wang is interesting. ④⑤句动名词作表语，与主语部分可以转换，如Serving thepeople is our work,而⑥句中是现在分词作 表语，说明主语的性质、状态，现在分词具有形容词的各种特征，另外，动名词作表语还应与进行时态区别开 来。
五、作状语 1）目的状语 To… only to (仅仅为了), in order to, so as to, so(such)… as to… (如此……以便……) He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。
I come here only to say good-bye to you. 我来仅仅是向你告别。
2）作结果状语，表事先没有预料到的，要放在句子后面。
What have I said to make you angry. He searched the room only to find nothing. 3) 表原因 I'm glad to see you. 典型例题 The chair looks rather hard, but in fact it is very comfortable to ___. A. sit B. sit on C. be seat D. be sat on 答案：B. 如果不定式为不及物动词，其后应有必要的介词。
当动词与介词连用时，常位于形容词+动词不定式结构的末尾。
六、作定语 ⒈不定式作定语 不定式在句中作定语，置于被修饰的名词或代词之后。
如： ①The next train to arrive is from Washington. ②Have you anything to be taken to your sister? ③Do you have anything to say on the question? ④Would you please give me some paper to write on? ⑤My wish to visit France has come true at last. 不定式短语作定语和被修饰词之间表示以下关系： (1)表示将来的动作（例①）。
(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（例④）。
(3)与被修饰词之间有动宾关系，同时与句中其它词之间又有逻辑上的主谓关系时，尽管有被动含义，却仍 用主动语态（例③）；如只有动宾关系，而无逻辑上的主谓关系，则需用被动语态（例②）。
(4)不定式作定语时，一般可转换为定语从句，例①to arrive=that will arrive。
[编辑本段][省to 的动词不定式] 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） 表示个人意愿或倾向的would rather，had better，might(just) as well：rather than置于句首时。
Rather than ride on a crowded bus,he always prefers to ride a bike. 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。
10）but作介词，后接不定式结构时，前面谓语动词部分若含有do的形式时，but后的不定式要省去to，否则要带to。
He wants to do nothing but go out. He wants to believe anything but to take the medicine. 11）当两个或多个不定时短语由连词and，but或or连接时，后一个或几个不定式符号to常省略。
但若表示对比、对照关系时，则不能省略。
He wants to move to France and marry the girl. The purpose of new technologies is to make life easier,not to make it more difficult. 12）不定式做表语时，一般要带to，但若主语部分中含有do的各种形式时，符号to可省去。
We've missed the last bus.All we could do now is walk home. 典型例题 1) ---- I usually 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 答案：D. why not 后面接不带to 的不定式，因此选D。
2） Paul doesn't have to be made ___. He always works hard. A. learn B. to learn C. learned D. learning 答案：B. make后接不带to 的动词不定式，当其用于被动时，to 不可省略。
[编辑本段][动词不定式的否定式] Tell him not to shut the window… She pretended not to see me when I passed by. 我走过的时候，她假装没看见。
典型例题 1）Tell him ___ the window. A. to shut not B. not to shut C. to not shut D. not shut 答案：B。
tell sb to do sth 的否定形式为tell sb not to do sth. 2) She pretended ___ me when I passed by. A. not to see B. not seeing C. to not see D. having not seen 答案：A。
pretend 后应接不定式。
其否定形式为pretend not to do sth.。
3）Mrs. Smith warned her daughter ___ after drinking. A. never to drive B. to never driver C. never driving D. never drive 答案：A。
warn sb to do sth. 的否定形式为warn sb not to do sth. 此处用的是否定词never. 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 答案：A。
not to 为not to do it 的省略形式。
可以只用to这个词，而不必重复整个不定式词组。
及物动词do后应有名词、代词等，否则不对，因此B，D不对。
5) The patient was warned ___ oily food after the operation. A. to eat no B. eating not C. not to eat D. not eating 答案：C。
warn一词要求后用不定式，此处为不定式的被动，否定形式为be warned not to do。
[编辑本段][不定式的特殊句型] 1、不定式的特殊句型so as to 1） 表示目的；它的否定式是so as not to do。
Tom kept quiet about the accident so as not to lose his job. 汤姆对事故保持沉默是为了不丢掉他的工作。
Go in quietly so as not to wake the baby. 轻点进去，别惊醒了婴儿。
2) so kind as to ---劳驾 Would you be so kind as to tell me the time? 劳驾，现在几点了。
2、 Why not +动词原形表达向某人提出建议 为什么不……? 干吗不……? 例如： Why not take a holiday? 干吗不去度假? 3、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。
) 4、不定式的特殊句型too…to… 1）too…to 太…以至于… He is too excited to speak. 他太激动了，说不出话来。
---- Can I help you ? 需要我帮忙吗? ---- Well, I'm afraid the box is too heavy for you to carry it, but thank you all the same. 不用了。
这箱子太重，恐怕你搬不动。
谢谢您。
2) 如在too前有否定词，则整个句子用否定词表达肯定， too 后那个词表达一种委婉含义，意 为不太。
It's never too late to mend. (谚语) 改过不嫌晚。
...更多更复杂的可以去百度百科看一下 ======================简单来说I want to go away.to go away就是不定式不定式一般指to do这种结构，一般表示目的
英语中省略不定式to的动词有哪些
动词不定式的语法功能 一、作宾语 1) 动词+ 不定式 afford. aim. appear. agree. arrange . ask . be . decide. bother . care . choose . come. dare. demand. desire. determine . expect. elect . endeavor .hope. fail . happen . help . hesitate .learn . long . mean. manage . offer . ought. plan . prepare. pretend . promise. refuse. seem. tend. wait . wish. undertake. 举例： The driver failed to see the other car in time. 司机没能及时看见另一辆车。
I happen to know the answer to your question. 我碰巧知道你那道问题的答案。
2）动词+不定式 ；动词+宾语+不定式 ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish… I like to keep everything tidy. 我喜欢每件东西都保持整洁。
I like you to keep everything tidy. 我喜欢你使每件东西都保持整洁。
I want to speak to Tom. 我想和汤姆谈话。
I want you to speak to Tom. 我想让你和汤姆谈话。
3） 动词+疑问词+ to decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell Please show us how to do that. 请演示给我们如何去做。
There are so many kinds of tape-recorders on sale that I can't make up my mind which to buy.有这么多的录音机，我都拿不定主意买哪一种。
注意:疑问词带不定式在句中作成分时，谓语动词用单数。
The question is how to put it into practice. 问题是怎样把它付诸实施。
4)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： I decided to ask for my money back. I decided that I would ask for my money back. When our visit to the farm was over,we expected to startback on foot. When our visit to the farm was over, we expected that wewould start back on foot. 5)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。
如： We think it quite important for us to learn a foreignlanguage well. He feels it his duty to help the poor. 二、作补语 1) 动词+宾语+不定式(to do) advise allow appoint believe cause challenge command compel consider declare drive enable encourage find forbid force guess hire imagine impel induce inform instruct invite judge know like order permit persuade remind report request require select send state suppose tell think train trust understand urge warn 例句： a. Father will not allow us to play on the street. 父亲不让我们在街上玩耍。
b. We believe him to be guilty. 我们相信他是有罪的。
Find 的特殊用法： Find 后可用分词做宾补，或先加形式宾语，再加形容词，最后加带to 的动词不定式。
find后也可带一个从句。
此类动词还有get，have。
I found him lying on the ground. I found it important to learn. I found that to learn English is important. 2) to + be 的不定式结构，作补语的动词。
Acknowledge, believe, consider, think, declare(声称), discover, fancy(设想), feel find, guess, judge, imagine, know, prove, see(理解), show, suppose, take(以为), understand We consider Tom to be one of the best students in our class. 我们认为汤姆是班上最好的学生之一。
3) to be +形容词 Seem, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean… The book is believed to be uninteresting. 人们认为这本书没什么意思。
4) there be+不定式 believe, expect, intend, like, love, mean, prefer, want, wish, undrstand We didn't expect there to be so many people there.我们没料到会有那么多人在哪里。
有些动词需用as 短语做补语，如regard, think believe, take, consider. We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。
Mary took him as her father . 玛丽把他当作自己的父亲。
三、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 compositionin a quarter of an hour. ④It＋be＋形容词＋of sb＋to do It is stupid of you to write down everything the teachersays. ⑤It seems(appears)＋形容词＋to do It seemed impossible to save money. 在句型③中，常用表示客观情况的形容词，如：difficult,easy,hard,important,impossible,necessary 等；在句型④中，常用careless,clever,good,foolish,honest,kind,lazy,nice,right,silly,stupid,wise等 表示赞扬或批评的词。
在不定式前的sb，可看作其逻辑主语。
这一句式有时相当于Sb is＋形容词＋to do句式 ，如：It'skind of you to help me with my English.=You are kind to helpme with my English. (3)举例 1） It's easy (for me) to do that.我做这事太容易了 easy, difficult, hard, important, possible, impossible, comfortable, necessary, better; the first, the next, the last, the best, too much, too little, not enough It's so nice to hear your voice. 听到你的声音真高兴。
It's necessary for you to lock the car when you do not use it. 当你不用车的时候，锁车是有必要的。
2) It's very kind of you to help us. 他帮助我们，他真好。
Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, selfish(自私的) 例句: It was silly of us to believe him. 我们真愚蠢，竟然相信了他。
It seemed selfish of him not to give them anything. 他不给他们任何东西，这显得太自私了。
注意：1) 其他系动词如，look，appear等也可用于此句型 2) 不定式作为句子成分时，动词用单数形式。
3) 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. 四、作表语 不定式作表语表示具体动作或将来动作；动名词作表语表示抽象的一般行为。
①To be kind to the enemy is to be cruel to the people. ②My chief purpose is to point out the difficulties ofthe matter. ③What I would suggest is to put off the meeting. 当主语和表语都是不定式时，其含义一是条件，一是结果（例①）。
当主语是aim,duty,hope,idea,mista ke,plan,purpose,suggestion等为中心词的名词词组（例②）时，或以what引导的名词性分句（例③），不定 式说明主语的内容。
④Our work is serving the people. ⑤What he likes is taking a walk after supper. ⑥The story told by Mr.Wang is interesting. ④⑤句动名词作表语，与主语部分可以转换，如Serving thepeople is our work,而⑥句中是现在分词作 表语，说明主语的性质、状态，现在分词具有形容词的各种特征，另外，动名词作表语还应与进行时态区别开 来。
五、作定语 ⒈不定式作定语 不定式在句中作定语，置于被修饰的名词或代词之后。
如： ①The next train to arrive is from Washington. ②Have you anything to be taken to your sister? ③Do you have anything to say on the question? ④Would you please give me some paper to write on? ⑤My wish to visit France has come true at last. 不定式短语作定语和被修饰词之间表示以下关系： (1)表示将来的动作（例①）。
(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（例④）。
(3)与被修饰词之间有动宾关系，同时与句中其它词之间又有逻辑上的主谓关系时，尽管有被动含义，却仍 用主动语态（例③）；如只有动宾关系，而无逻辑上的主谓关系，则需用被动语态（例②）。
(4)不定式作定语时，一般可转换为定语从句，例①to arrive=that will arrive。
六、作状语 1）目的状语 To… only to (仅仅为了), in order to, so as to, so(such)… as to… (如此……以便……) He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。
I come here only to say good-bye to you. 我来仅仅是向你告别。
2）作结果状语，表事先没有预料到的，要放在句子后面。
What have I said to make you angry. He searched the room only to find nothing. 3) 表原因 I'm glad to see you. 省to 的动词不定式 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） 表示个人意愿或倾向的would rather，had better，might(just) as well：rather than置于句首时。
Rather than ride on a crowded bus,he always prefers to ride a bike. 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。
10）but作介词，后接不定式结构时，前面谓语动词部分若含有do的形式时，but后的不定式要省去to，否则要带to。
He wants to do nothing but go out. He wants to believe anything but to take the medicine. 11）当两个或多个不定时短语由连词and，but或or连接时，后一个或几个不定式符号to常省略。
但若表示对比、对照关系时，则不能省略。
He wants to move to France and marry the girl. The purpose of new technologies is to make life easier,not to make it more difficult. 12）不定式做表语时，一般要带to，但若主语部分中含有do的各种形式时，符号to可省去。
We've missed the last bus.All we could do now is walk home. 动词不定式的否定式 Tell him not to shut the window… She pretended not to see me when I passed by. 我走过的时候，她假装没看见。
不定式的特殊句型 1、不定式的特殊句型so as to 1） 表示目的；它的否定式是so as not to do。
Tom kept quiet about the accident so as not to lose his job. 汤姆对事故保持沉默是为了不丢掉他的工作。
Go in quietly so as not to wake the baby. 轻点进去，别惊醒了婴儿。
2) so kind as to ---劳驾 Would you be so kind as to tell me the time? 劳驾，现在几点了。
2、 Why not +动词原形表达向某人提出建议 为什么不……? 干吗不……? 例如： Why not take a holiday? 干吗不去度假? 3、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。
) 4、不定式的特殊句型too…to… 1）too…to 太…以至于… He is too excited to speak. 他太激动了，说不出话来。
---- Can I help you ? 需要我帮忙吗? ---- Well, I'm afraid the box is too heavy for you to carry it, but thank you all the same. 不用了。
这箱子太重，恐怕你搬不动。
谢谢您。
2) 如在too前有否定词，则整个句子用否定词表达肯定， too 后那个词表达一种委婉含义，意 为不太。
It's never too late to mend. (谚语) 改过不嫌晚。
3) 当too 前面有only, all, but时，意思是：非常… 等于very。
I'm only too pleased to be able to help you. 我非常高兴能帮助你。
He was but too eager to get home. 他非常想回家。
动词不定式的to与介词的to区别 to 有两种用法： 一为不定式+动词原形； 一为介词+名词\\\/动名词, to 在下面的用法中是第二种，即to+ 名词\\\/动名词： admit to承认，confess to承认，be accustomed to 习惯于，be used to 习惯于， stick to 坚持， turn to开始，着手于， devote oneself to 献身于， be devoted to 致力于， look forward to 盼望，pay attention to 注意 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. On Sunday afternoon I had nothing to do but watch TV. 动词不定式与动名词区别与联系 1） 动名词与不定式的区别： 动名词表达的是： 状态，性质，心境，抽象，经常性，已发生的 不定式表达的是： 目的，结果，原因，具体，一次性，将发生的 2） 接不定式或动名词，意义相同。
3)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 di fficult 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. ⒋advise,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： Don't forget fo post the letter for me. Have you forgotten meeting her in Beijing Airport? Remember to close the windows before you leave. I remember writing him a letter a year ago. We regret to tell you that all of you are not invited toattend the meeting. They regretted ordering these books from abroad. 动名词与不定式语义不同的有11 组： 1 stop to do stop doing 2 forget to do forget doing 3 remember to do remember doing 4 regret to do regret doing 5 cease to do cease doing 6 try to do try doing 7 go on to do go on doing 8 afraid to do afraid doing 9 interested to do interested doing 10 mean to do mean doing 11 begin\\\/ start to do begin\\\/ start doing 1 forget doing\\\/to do forget to do 忘记要去做某事。
(未做) forget doing 忘记做过某事。
(已做) The light in the office is stil on. He forgot to turn it off. 办公室的灯还在亮着，它忘记关了。
(没有做关灯的动作) He forgot turning the light off. 他忘记他已经关了灯了。
( 已做过关灯的动作) Don't forget to come tomorrow. 别忘了明天来。
(to come动作未做) 2 stop doing\\\/to do stop to do 停止，中断做某事后去做另一件事。
stop doing 停止做某事。
They stop to smoke a cigarette. 他们停下来，抽了根烟。
I must stop smoking.. 我必须戒烟了。
3 remember doing\\\/to do remember to do 记得去做某事 (未做) remember doing 记得做过某事 (已做) Remember to go to the post office after school. 记着放学后去趟邮局。
Don't you remember seeing the man before? 你不记得以前见过那个人吗? 4 regret doing\\\/to do regret to do 对要做的事遗憾。
(未做) regret doing 对做过的事遗憾、后悔。
(已做) I regret to have to do this, but I have no choice. 我很遗憾必须这样去做，我实在没有办法。
I don't regret telling her what I thought. 我不为告诉她我的想法而后悔。
5 cease doing\\\/to do cease to do 长时间，甚至永远停做某事。
cease doing 短时停止做某事，以后还会接着做。
That department has ceased to exist forever. 那个部门已不复存在。
The girls ceased chatting for a moment when their teacher passed by. 姑娘们在老师走过时，停了会聊天。
6 try doing\\\/to do try to do 努力，企图做某事。
try doing 试验，试着做某事。
You must try to be more careful. 你可要多加小心。
I tried gardening but didn't succeed. 我试着种果木花卉，但未成功。
7 go on doing\\\/to do go on to do 做了一件事后，接着做另一件事。
go on doing 继续做原来做的事。
After he had finished his maths，he went on to do his physics. 做完数学后，他接着去做物理。
Go on doing the other exercise after you have finished this one. 作完这个练习后，接着做其他的练习 8 be afraid doing\\\/to do be afraid to do 不敢，胆怯去做某事，是主观上的原因不去做，意为怕； be afraid of doing 担心出现doing的状况、结果。
doing 是客观上造成的，意为生怕，恐怕。
She was afraid to step further in grass because she was afraid of being bitten by a snake. 她生怕被蛇咬着，而不敢在草丛中再走一步。
She was afraid to wake her husband. 她不敢去叫醒她丈夫。
She was afraid of waking her husband. 她生怕吵醒她丈夫。
.9 be interested doing\\\/to do interested to do 对做某事感兴趣，想了解某事。
interested in doing 对某种想法感兴趣，doing 通常为想法。
I shall be interested to know what happens. 我很想知道发生了什么事。
(想了解) I'm interested in working in Switzerland. Do you have any idea about that? 我对在瑞士工作感兴趣。
你想过这事吗? (一种想法) 10 mean to doing\\\/to do mean to do 打算、想 mean doing 意味着 I mean to go, but my father would not allow me to. 我想去，但是我父亲不肯让我去。
To raise wage means increasing purchasing power. 赠加工资意味着增加购买力。
11 begin(start) doing\\\/to do begin \\\/ start to do sth begin \\\/ start doing sth. 1) 谈及一项长期活动或开始一种习惯时，使用doing. How old were you when you first started playing the piano? 你几岁时开始弹钢琴
2) begin, start用进行时时，后面动词用不定式to do I was beginning to get angry。
我开始生起气来。
3) 在attempt, intend, begin, start 后接know, understand, realize这类动词时，常用不定式to do。
I begin to understand the truth。
我开始明白真相。
4) 物作主语时 It began to melt.
重头学英语，要从什么学起
用for 是因为前面的adj是来描述do后面的sth.用of 的话,adj就用来形容sb的it is adj of sb to do,这里的形容形容人的性格特征的,如nice,kind clever,foolish,smart,都是形容人的,it is adj for sb to do就是普通的形容词,如hard,impossible,important翻译：对我们来说学习英语太难了it is+adj+for sb to do...it is+adj+of sb to do ....的含义及区别一.导入It is kind of you to help me.你能帮我太好了.（kind 形容的是you）It is beneficial for you to do sports.运动对你有益.（beneficial形容的是do sports）二.表达含义:1.it is+adj+for sb. 就是“做…对某人(for sb)来说怎么样(adj)”2.it is+adj+of sb. 就是“某人做…(of sb)怎么样(adj)”三.辨析:it is+adj+for sb和it is+adj+of sb.①“It’s +adj.+of+sb.+不定式”表示“某人(做某事)怎么样” 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.若形容词是描述逻辑主语(行为者即of后的sb)的性格、品质特征的形容词. 这个adj.是用来形容sb.的.of后的宾语能与前面的形容词构成主表关系. 这类形容词有:good(好的),kind(友善的),nice(友好的),polite(有礼貌的),clever(聪明的),foolish(愚蠢的),lazy(懒惰的), right(正直的)careful(细心的),careless(粗心的),right(正确的),wrong(错误的)wise, clever, nice, kind, silly,rude, wrong, right, foolish,natural, stupid, bad, brave,cruel, honest,naughty,wise,rude等.例如:It’s very kind of you to help me.(=You are very kind to help me.)你能帮助我,真好.It's very kind of you to look after my cat.你能照看我的猫,真好.It’s kind of you to say so.(=You are kind to say so)It’s very rude of her to say such words.(=She is very rude to say such words.)她说这样的话,真粗鲁.It’s foolish of him to go alone.(=He is foolish to go alone.)他单独出去太傻了.It's very nice of you to help me. 你来帮助我,你真是太好了.It’s clever of you to work out the maths problem. It's very kind of you to look after my cat.你真聪明,解出了这道数学题.It’s foolish of you to do that.It’s wrong of the other children to make fun of you.②“It’s+adj.+for+sb.+不定式”表示“做某事对某人来说怎么样”.常用于表示事物的特征特点,表示客观形式的形容词.若形容词是描述做的事情（即adj描述的是to do）,不是对不定式行为者的品格进行评价,用for sb.这类形容词有:important(重要的),necessary(必要的),difficult(困难的),easy(容易的),hard(艰难的),dangerous(危险的),safe(安全的),useful(有益的),pleasant(舒适的),interesting(有趣的),impossible(不可能的),right(正确的) likely(可能的)等，例如:It’s not easy for them to learn a foreign language.(=To learn a foreign language is not easy for them.)对于他们来说学好一门外语不容易.It's very hard for him to study two languages(=To study two languages is very hard for him).对他来说学两门外语是很难的.It’s very important for students to listen to teachers carefully.(=To listen to teachers carefully is very important for students.)对于学生来说上课认真听老师讲课是非常重要的.It’s necessary for us to get to school on time.(=To get to school on time is necessary for us.)对于我们来说按时到校是非常必要的.It’s important for her to come to the party.=It is important that she should come to the party.对她来说来参加聚会很重要.It’s very dangerous for children to cross the busy street.对孩子们来说,穿过繁忙的街道很危险.It’s difficult for us to finish the work. 对我们来说,完成这项工作很困难.③注意:for 与of 的辨别方法: I.区别:1.含义上的区别:两种句型的主谓关系不一样.It is+adj+for sb to do. adj应该是对做这件事的评价;It is+adj+of sb to do sth. adj应该是对做这件事的人的评价,adj多用形容人的.①It is +adj+for sb to do sth. 形容词(for前的)是多用来形容一件事情(动词不定式所表示的动作),即修饰的是 to do sth. adj是do sth.的属性; sb.跟adj.没有直接联系. for是指干谋事会如何.It's plesant for us to take a walk after supper.②It is+adj+of sb to do sth. 形容词(of前的)是多用来形容人的;修饰的是介词of后面接的宾语. sb.跟adj.有直接联系.③实例辨析:It's very difficult for me to do it. (difficult 指事情很难)It's very kind of you to do it for me. (kind指人的品质好)It is more convenient for him to walk directly.对他来说,直接走过来比较便捷. (convenient 指事情很便捷)It is clever of him to come down without ropes.他很聪明,不用绳子就能下来. (convenient 指指人很聪明)2.逻辑结构上的区别:方法:取介词of\\\/for后的代词作逻辑主语和介词前边的形容词作表语,造个句子.句子结构:“逻辑主语+be+形容词”.即:sb.is adj to do sth (不定式作句子的状语).如果道理上通顺用of,不通则用for.如:It is good for you to look at this book. 是说: ....对你有好处. 看这本书对你有好处.It is nice of you to give me such advice.是说: 你很好,感激你给我提供建议.*提取逻辑主语和形容词造句:It is nice of you to help me. 提取you与nice 可构成you are nice. (通顺,所以应用of).It's very kind of you to help me. 提取you与kind可构成you are kind. (通顺,所以应用of).It is good for you to look at this book.提取you与good可构成you are good(有好处的). (不通,所以应用for)It is hard for him to study two languages. 提取he与hard可构成he is hard(困难的). (不通,所以应用for)四.注意:of sb. 的句型通常都可转换为不定式作状语的句子,但for sb.句型不可以. It’s very nice of you to offer me a seat. = You are nice to offer me a seat. 十分感谢你给我让座. It is careless of him to lose so many things. = He is careless to lose so many things. 他丢了这么多东西,真是太粗心了. It’s very important for you to practise your oral English in daily life.
英语，用形容词比较级和最高级各造十个句子
He is taller than her.She is thinner than her sister.Tom is more handsome than Tim.Mary is happier than Kate.I have more questions than you.My shoes are bigger than yours.Your coat is larger than mine.Your hair is longer than mine.She is nicer than her sister.John has more money than I.I am the tallest in our class.My movements are the most graceful of us three. Racing is the most interesting sport I've ever known. You are always my fondest star. Zhang Hua is the tallest of the three． He works (the) hardest in his class. How much did the second most expensive hat coat? He is the tallest(boy) in his class． 0f all the boys he came(the) earliest．The Yellow River is the second longest river in China.黄河是中国第二长河. They are happiest on Saturdays.他们在星期六最快乐. He is the youngest and tallest boy in his class.他是班上年龄最小、个子最高的男孩. That book is most interesting.那本书非常有趣. I found it most difficult to get to sleep.我发现入睡最难. With best wishes for you.向你致以最美好的祝愿.
英语零基础的人，如何在短时间内学好英语
一、音标和字母既然是从零开始，那么首先要掌握的必然是26个字母和48个的发音和写法了。
为了不走回头路，从一开始就学好音标和字母是非常必要的。
二、单词从初学阶段开始积累一定的词汇量，对今后英语的听说读写都有帮助。
背词的方法因人而异，但是万变不离其宗，就是要多写、多读，还要多用。
如果不能运用起来，那还不能算是完全掌握。
推荐一个方法：举一反三造句法。
首先，遇到一个生词的时候要先查字典，看看这个词有几个词性，每一词性下对应的意思是什么；其次，查找这个单词衍生出的其它词性的单词，例如：friend（朋友）是名词，加上词缀-ly之后变为friendly（友好的；友善地），作形容词和副词；最后，查看字典里的例句，了解这些单词是怎么用的，用在什么样的语境里，区别是什么，并尝试自己来造句。
继续用friend这个单词举例，可以造句为：Tom is my friend（名词）, and he is very friendly（形容词）。
造句不仅能帮助掌握单词用法，还能加深记忆。
当可以用一个新学到的单词正确造出一个句子的时候，说明已经掌握得差不多了。
三、语法提起，很多人觉得头大。
各种时态各种从句好复杂的样子。
其实任何一门学科都是由浅入深的，英语也不例外。
学习语法就像造房子，首先要把基础的语法脉络理清，打好根基，之后再慢慢补充和拓展，让知识巩固起来。
那么，选一套好教材是很有必要的。
就是不错的选择，从新一的基础句型对话，到新二丰富有趣的小短文，再到新三新四题材广泛的各类文章，可以让大家从量的积累达到。
除了可以学习语法知识，这套教材也可用于口语、听力、阅读、写作的练习，当中涵盖的单词更是能帮助大家扩充词汇量。
初学阶段可以选择新概念一、新概念二来学习，等基础都巩固好之后，就可以向新三、甚至是新四冲刺。
学习英语是一个循序渐进的过程，零起点的学习者一定要在初学阶段下足功夫，只有基础打好了，才能向更高处进军。
要对自己有信心，不要因为自己还是一张白纸就畏缩不前。
坚持不懈，积少成多。
用5个形容词来造5个英语句子。
Beijing is bigger than London. 北京要比伦敦大一点.My older brother is one year older than I. 我哥哥比我大一岁He is taller than his brother .他比他的兄弟长得高。
I want a cheaper one. 我要个便宜一点的。
Whose hair is longer, yours or hers?谁的头发比较长，你的还是她的
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