因为英语to

to的用法 一：表示相对，针对 be strange to 二：表示对比，比较 1：以-ior结尾的形容词，后接介词to表示比较 senior,junior 2: 一些本身就含有比较或比拟意思的形容词 A is similar to B in many ways. 3：表示一些先后顺序的形容词 they returned to their hometown 4: to也偶尔出现在个别动词之后,与动词形成固定词组,表示比较 compare to sth. 5: to与及个别的名词构成比较之意, Going to an under water concert is a great alternative to going to dinner. 三: 表示修饰关系 1: 表示回复,反应意思的词 answer to question 2: 表示建筑构件的词汇 the approach to science 3: 表示人物职位和官衔的词 assistant to manager 4: 表示权利和许可的词汇 Everyone has an equal right to 5: 表示栅栏或障碍的词汇 the barrier to progress 6: 表示与书籍,文本相关的词 introduction to passage 7: 表示恭喜或是祝贺 Let’s drink to Dick’s success in business 8: 另外还有一些名词符合这种用法,有的具有两者息息相关,缺一不可的含义 guide to action 四: to还具有依据,伴随,和着节奏的含义 sing to piano （一）：表示相关联，相连接 be related to （二）：表示反对和赞同 1：to引导的表示反对，抗拒，对抗意义的词组 Be opposed to 2: to引导的表示同意，赞同意义的词组 The employer consented to give him a salary raise 3: 表示投降,屈服,服从的含义 confess to 五: 表示趋势或倾向, tend to 六: 表示对事情的坚持与执着 He still holds on to his original views 七: 表示约束,局限 limit to 八: 表示一种习惯或是一种适应性 get (be) to 九: 表示起因和原由 due to 十: 表示目的或结果 lead to 介词 for基本可以归纳为以下几点: 1. The period between 1905 and 1915 was important one for Einstein. for"对……来说"(利益) All for one, and one for all. 人人为我,我为人人。 Smoking is not good for the health. 吸烟有害健康。 2. Einstein received worldwide praise for his scientific research. for"由于"(理由,原因) She was angry with him for being late. 她生气是因为他迟到。 3. In 1933, Einstein and his family left Europe for the USA. for"向,往……"(方向,目的地) This ship is for San Francisco. 这艘船是开往旧金山的。 4. ... but asked for very little money. for"目的,追求"(以……为目的,为了得到……) What is this for? 这是做什么用的? She does aerobics for her figure. 为了保持身材,她做有氧运动。 5. He once refused to speak on the radio for $1,000 a minute. for"交换,抵偿报酬"(以……的金额,与……交换……) She took the blouse back to the store and changed it for another. 她把这件短上衣拿回店里换另一件。 I bought this set of coffee cups for $20. 我花了20美元购买这套咖啡杯。 6. Another time, someone saw him using a cheque for $1,500 as a bookmark. for"面值……" She handed me a bill for $100. 她给了我一张100美元的帐单。 介词of用法 1: 表示剥夺,除去 clarify the river of flowing rubbish 2: of接直接宾语 remind sb. of his duties 3: of接间接宾语 ask a question of sb 4: of表示人物的特性,籍贯,特性或出生等 He is of Irish descend 5: 固定词组 The room smells of stale cabbage with在下列结构中起副词作用： 1.“with+宾语+现在分词或短语”，如： (1) This article deals with common social ills, with particular attention being paid to vandalism. 2.“with+宾语+过去分词或短语”，如： (2) With different techniques used, different results can be obtained. (3) The TV mechanic entered the factory with tools carried in both hands. 3.“with+宾语+形容词或短语”，如： (4) With so much water vapour present in the room, some iron-made utensils have become rusty easily. (5) Every night, Helen sleeps with all the windows open. 4.“with+宾语＋介词短语”，如： (6) With the school badge on his shirt, he looks all the more serious. (7) With the security guard near the gate no bad character could do any thing illegal. 5.“with+宾语＋副词虚词”，如： (8) You cannot leave the machine there with electric power on. (9) How can you lock the door with your guests in?

你要问to干脆说动词不定式怎么用好了，这可是大文章了，我买了本语法书，这方面的有10多页了。什么省to的不定式。还有不定式的进行时，不定式的完成时等等，这里怎么说的清呢···

由于…,归因于…;预定…dueto，owingto，becauseof，thanksto这些词组均表示“由于”之意。dueto用于较庄重的书面语中，侧重“起因于”，在句中多作表语，有时作状语。owingto可以和dueto换用，但在句中多作状语，也可作表语。becauseof着重某种原因的理由，在句中通常作状语。thanksto突出一种感激之情，含“多亏”意味。点击查看……

To 1.向；至；往：She's going to London.她要去伦敦。Turn to the left.向左转。Pisa is to the west of Florence. 比萨在佛罗伦萨的西面。 He has gone to school.他上学去了。 2.(用于表示一系列事物或一段时间的尽头或限度） 直到:from Monday to Friday从星期一到星期五 from beginning to end 从开始到结束。 3.用于表示接受者：Give that to me.把那个给我。I am very grateful to my parents.我很感激我的父母。What have you done to your hair?你把头发怎么搞的？Sorry I diddn't realize you were talking to me.对不起，我不知道你是在跟我说话。 4接触到；针对：He put his hands to his ears.他将两手捂住耳朵。They sat back to back.他们背对背坐着。She made no reference to her personal problems.他没有提及自己的个人问题。 5.达到某种状态：The meat was cooked to perfection.这肉煮得恰到好处。His speech reduced her to tears(=make her cry).他的话令她流泪。 6.(用于引出比较中的另一部分）：I prefer theatre to opera.我喜欢戏剧，甚于歌剧。 7.(用于表示数量）每```等于：How many dollars are there to the euro?多少美元等于一欧元？ 8.(用于表示时间）在```之前：It's ten to three.(=ten minutes before three o'clock).现在是三点差十分。 9.(用于表达对某物的看法或感受）：To me,it was the wrong decision.我认为那是错误的决定。It sounded liked a good idea to me.我觉得这听起来是个好主意。I don't think our friendship means anything to him.我仍为我们的友谊对他说毫不重要。 10.(用于表达某人对某事的反应或态度）：To my surprise,I saw two strangers coming out of my house.我看见两个陌生人从我家里走出来，吃了一惊。His paintings aren't really to my taste.他的画真的不符合我的口味。 11.（与动词连用，构成不定式。）：I want to go home now.我现在想回家。Don't forget to write.别忘记写信来。I didin't know what to do.我当时不知道该怎么办。 12.（指门）关上Push the door to.把门推一推关上。for介词 prep. 1.为,为了They fought for national independence. 他们为民族独立而战。 This letter is for you. 这是你的信。 2.代替;代表We used boxes for chairs. 我们用箱子当椅子坐。 3.因为,由于I am sorry for what I said to you. 我后悔不该对你讲那些话。 4.在(指定时间)The meeting is arranged for 9 o'clock. 会议安排在九点钟。 5.(表示时间、距离等)达,计You can see for miles from the roof. 你站在屋顶上可以看到数英里之外。 6.对于,关于;在...方面I am too old for the job. 我年纪太大,做不了这工作。 7.为得到,为赢得He sent the waiter for a packet of cigarettes. 他让侍者去拿一盒香烟。 8.以...为代价;以...交换He sold his car for 500 dollars. 他以五百元把车卖了。 9.当作,作为Do you take me for a millionaire? 你是不是把我当百万富翁? 10.赞成;支持;倾向于Are you for the government or against it? 你是支持还是反对政府? 11.朝...方向去;往,向He left for Taipei. 他出发去台北。 12.就...而言She is sophisticated for her age. 就年龄而言她是世故了一点。 ASadv. 1. 同样地, 一样地prep. 1. (表示时间)当还是…的时候2. (表示方式)以…的身份, 以…资格, 作为; 以…形式, 以作为; 以…角色, 扮演…角色; 如同, 像3. (表示结果)成为, 看作, 看成4. (表示目的)为了, 以…为目的5. (表示举例)例如, 诸如…之类的conj. 1. 在…期间, 当…时候2. 尽管, 即使, 虽然3. 像…一样4. 由于, 因为5. 照…方式6. 正如；如同副词 adv.1.同样地, 一样地 She is as tall as her mother.她和她母亲一样高。The dining room was twice as big as the Tom's.这个餐厅比汤姆的餐厅大一倍。This is as difficult a problem as you are likely to meet.像这样的难题, 你可能会碰到。介词 prep.1.(表示时间)当还是…的时候 As a schoolboy, he showed every sign of genius.当他还是个小学生的时候, 就显示出了天资聪慧。2.(表示方式)以…的身份, 以…资格, 作为; 以…形式, 以作为; 以…角色, 扮演…角色; 如同, 像 3.(表示结果)成为, 看作, 看成 We had better treat it as a joke.我们最好把它当作玩笑。4.(表示目的)为了, 以…为目的 The dykes were built as a protection against the sea.建筑堤坝是为了防止海水泛滥。5.(表示举例)例如, 诸如…之类的 We talked about such subjects as the weather.我们谈论了诸如天气之类的话题。连接词 conj.1.在…期间, 当…时候 I was coming in as he was going out.我进来的时候, 他正出去。2.尽管, 即使, 虽然 Intelligent as you are, I suspect you will fail.尽管你聪明, 我猜想你会失败。3.像…一样 4.由于, 因为 As you weren't there I left a message.因为你不在那里, 我留了个信儿。5.照…方式 6.正如；如同 展开词典例句