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; such…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。
I'm not such a stupid fool as to put it in writing. ②enough…to
The speed is high enough for us to catch up with thefirst liner. ③only to
Jane hurried back only to find her mother dying inthehospital. ④too…to
I'm too tired to stay up longer.
但在下列结构中，too…to并非是“太……而不能……”之意。如：
①I'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）
②We have too much to learn.我们要学的太多了（不定式作定语）。 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 do him justice（说句对他公道的 话），to be sure（真的）等等。 七、动词不定式、动名词的其它用法 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：
①When to leave for London has not been decided yet. ②Mr. Smith didn't know whether to leave or stay there. ③I asked Professor Xu how to learn English well. ④The question was where to get the medicine needed. 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, 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 hope to become a university student this year.（to become发生在hope之后）
We often hear Dick play the piano in the next room.（play和hear同时发生） 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.
We are too young to have seen the old society. ③进行式：表示的动作与谓语动词同时发生。如：
The teacher happened to be correcting our papers when I came in. They seemed to be discussing something important. (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'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 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.) ⒊动名词的时态、语态 (1)时态
①一般式：动名词的一般式所表示的动作可以是泛指，也可与谓语动词同时发生，或发生在谓语动作之前 、之后。如：
We are interested in collecting stamps.
I shall never forget seeing the Great Wall for the first time. We are not afraid of dying.
②完成式所表示的动作发生在谓语动词之前。如： Imagine having travelled on the moon.
We were praised for having finished the work ahead of time. (2)被动语态
①如果动名词的逻辑主语为动名词所表示的动作的承受者，动名词要用被动语态，动名词的被动语态有一 般式与完成式之分。如：
The young man came in without being noticed.
He prided himself on having never been beaten in class. ②有些动词后的动名词用主动形式，但表示被动意义。如： The bike needs repairing.
If a thing is worth doing, it is worth doing well.
高三英语一轮复习 语法（非谓语动词）归纳
