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1、非谓语动词概述：1.谓语动词：在句子中担任谓语的动词2.非谓语动词：是动词的特殊形式，在句中可以作除谓语外的所有成分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）,又没有连词的情况下, 还有别的动词出现时。She got off the bus, leaving her handbag on her seat.She got off the bus, but left her handbag on her seat.动词不定式一动词不定式的时态和被动形式动词不定式是非谓语动词的一种，由不定式符号(to)加动词原形构成。不定式的形式有五种：1 一般式to do 例如：I like
2、to read English.2 进行式to be doing 例如：He seemed to be reading something at that time.3 完成式to have done 例如：He seemed to have cleaned the room.4 被动式to be done 例如：The work is to be done soon.5 完成被动式to have been done例如：The boy is said to have been sent to hospital yesterday.二. 动词不定式的用法I.作主语 (1)不定式做主语时，可以直
3、接放在谓语动词之前。To see is to believe Not to get there in time is your fault.(2)注：常用it做形式主语，将to do放在位于之后，使句子保持平衡。句型1：It + 谓语 + to do It takes us an hour _to_ get there by bus.句型2：Its + n. + to do Its our duty _to_ help the poor.It is a great enjoyment _to_ spend our holiday in the mountains.句型3： It is + ad
4、j + for sb to do sth（是形容事物的性质的 ）It is + adj + of sb to do sth（是形容人的品质的 ）It is a great honor for us to be present at your birthday party. It is very kind of you to give me some help.Its impolite of you to speak to the teacher like that.常用careless,clever,good,foolish,honest,kind,lazy,nice,right,silly,
5、stupid,wise,等表示赞扬或批评的形容词，不定式前的sb.可作其逻辑主语（3）To see is to believe.=Seeing is believing. 作主语前后一致II.作宾语 (1)常见动词有：like, demand, expect, promise, begin, determine, refuse, offer, fail, manage, learn, seem, intend, forget, want, prepare, pretend, refuse, plan, afford, wish，hope等 (2)it作形式宾语，真正的宾语（不定式）后置，放在宾
6、语补足语后面I find/feel to work with him interesting I find/feel it interesting to work with himSubject+ find/think/feel/make/ consider it+adj/n + to do sth. 1.Wethought_it_better_to_startearly. 2.Doyouconsider_it_betternot_to_go?3.Ifeel_it_myduty_to_changeallthat. 4.We think it _ important _ to _ obey th
7、e law. 动词不定式也可充当介词宾语，如：I have no choice but to stay here. 我只能留在这里，别无选择。 (3)常跟疑问词+不定式作宾语的动词:tell, advise, show, teach, find out, decide, discuss, learn, explain, know, discover, He taught us how to use the tool. No one could tell me where to get the book.I havent decided whether to go or stay. 下列词接动名
8、词和不定式均可，但意义不同的动词：stop to do 停下来去做 stop doing 停止做forget to do 忘记要做 forget doing 忘记做过remember to do 记得要做 remember doing 记得做过regret to do 遗憾要做 regret doing 后悔做过try to do 企图做，尽力做 try doing 试着做go on to do 继续做（另一件事） go on doing 继续做（同一件事）mean to do 打算做 mean doing 意味做III.作宾语补足语1.常见词：advise, allow, ask, beg,
9、 cause, expect, encourage, force, get, hate, invite , order, wish, want, warn, remind, promise, permit, persuade, request+sb. to do注意：（1）在动词feel （一感），hear, listen to（二听），have, let, make（三让），notice, see, watch, observe, look at（五看）(即：吾看三室两厅一感觉)等后面的补足语中，不定式不带to，但变为被动语态后，必须带to。如： They saw the boy fall
10、off the tree. The boy was seen to fall off the tree.(2)help/make/let 后面作宾语补足语的不定式可以带to,也可以不带to，但表被动时一定要加to. I often help him （to）clean the room. I helped him (to) find his things. IV作定语I have something to tell you. (不定式作定语)（1）不定式与它所修饰的词有动宾关系 Do you have anything to wash today?注意：不定式为不及物动词时，所修饰的名词如果是
11、地点、工具等，应有必要的介词：He found a good house to live in. 他找到了一个居住的好房子如果不定式修饰time,place,way，可以省略介词： He has no place to live. 他无处安身。如果不定式所修饰名词是不定式动作承受者，不定式可用主动式也可用被动： Have you got anything to send? 你要送什么东西吗？（2）不定式用来说明所修饰词的内容 I have no chance to go there.（3）被修饰词是不定式的逻辑主语 She is always the last to leave the roo
12、m.（4）不定式为不及物动词且和所修饰的名词是动宾关系时，须加介词 V.作状语 不定式作状语可以表示目的、原因（都用于表喜怒哀乐等的形容词后）、结果(往往是与预期愿望相反的结果 意料之外)。He hurried to the school to find nobody there.（表结果）对比To learn English well, he needs a good dictionary.（表目的）To learn English well, a good dictionary is needed.（表原因）.不定式的主动形式表示被动意义I have something important
13、 to do. In the accident, the driver was to blame.动名词一. 动名词的基本构成主动语态被动语态一般式doingbeing done完成式having donehaving been doneNo one likes being laughed at.二.动名词的功用 Smoking does great harm to peoples health.（作主语） My job is looking after children.（作表语） I have finished reading the novel.（作宾语）They havent fini
14、shed building the dam. 他们还没有建好大坝。We have to prevent the air from being polluted.我们必须阻止空气被污染。注意：动名词既可作动词宾语也可作介词宾语，如上面两个例句。此外，动名词作宾语时，若跟有宾语补足语，则常用形式宾语it， We found it no good making fun of others. 我们发现取笑他人不好。 We have got a swimming pool in our school.（做定语）It is no use crying. =It is no point dong sth.
15、做某事毫无意义 It is no good objecting（5）The cave,his hiding-place is secret.（作同位语）常见的动词有：admit, advise, suggest, avoid, consider, delay, deny（否认）, excuse, finish, imagine, include, keep(on), mind, , practice, miss, resist,enjoy, permit, forbid ,practise,risk（冒险），appreciate（感激），短语: be/get used to ,cant help（情不自禁地）/stop, cant stand , give up, feel l
