(整理版高中英语)非谓语动词2.doc
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1、非 谓 语 动 词知识精讲 非谓语动词是高中英语语法中的一个重点和难点之一。主要的考察形式为单项选择,在历年各地高考题目中广泛出现。高中阶段,我们学习的非谓语动词内容包括不定式、动名词和分词的用法以及非谓语动词的复合结构用法。一、 概念和根本知识:什么是非谓语动词? 首先,我们要了解英语中根本的句子结构: 主语 谓语 宾语补语 定语 状语 定语 我们知道主语和宾语分别是一个动作的发出者和接受者,他们具有名词的性质 即使主语或宾语是一个短语或者从句,也可以把它整体看作一个名词。这种思维方法很重要,相当于数学当中的整体思想。谓语表示一个动作或一种存在的状态,具有一般的动词的性质。定语是对主语和宾语
2、起修饰、限定作用的成分,往往具有形容词的性质。状语是对谓语动词在时间、地点、方式、目的、程度等方面进行修饰的成分,一般具有副词的性质。 由上我们可以知道,一般来说,动词都是放在谓语的位置上的,但是在具体的语境之中,为了使意思表达连贯完整,我们往往要借用动词来充当句子当中的其它成分。这个时候,我们的动词就不能够再以动词本身的面貌出现在句子中,而是通过变化变成了不定式、动名词和分词等等形式。有了恰当的形式,这些动词就可以在句子当中充当除了谓语以外的其它成分。这就是我们所说的非谓语动词。二、非谓语动词的根本性质非谓语动词既然不出现在谓语的位置,那么他们在句子中也就不具有动词的性质,而是具有诸如名词、
3、形容词和副词等等的词性。一个完整的简单句子里面,只能有一套主谓宾的结构。也就是说,如果一个句子里面已经有了一个谓语动词,就不可能再有另外的谓语动词出现了。以上不包括用but、and连接和从句的情况。下面对非谓语动词常见的三种形式的根本性质总结列表:性质 词 类 常见形式 常见词性 在句子中的用法不 定 式To do、to be done名词、形容词、副词作主语、宾语、定语、表语、补足语及目的状语动 名 词Ving名词主语、宾语、表语、定语分 词Ved、Ving形容词、副词定语、状语、表语、补足语及状语等注意:不定式和分词一般是与其它词连接形成短语之后才具有了形容词、副词的性质。我们平常说的“短
4、语作定语、“短语作状语指的就是这种情况。例如:“To marry her这个短语作为一个整体来作目的状语。通过表格我们不难发现,这三类词在形状、词性、用法等方面都有相似性。但是他们用在句子当中是有着不同的效果的。功能及用法 二、 动词不定式:动词不定式由to + 动词原形构成。这里的to是不定式标志,没有词义。不定式具有名词、形容词或副词的某些语法功能,又有动词的时态和语态的特点及作用。常见的形式如表所示以及物动词do为例,不及物动词没有被动语态。 1定义及构成:语态时 态主 动被 动一 般 式to doto be done进行式to be doing/完成式to have doneto ha
5、ve been done完成进行式to have been doing/不定式的否认式为:not + (to) do 1一般式:不定式的一般式所表示的动作与谓语动词动作是同时发生或发生在谓语动词动作之后, 例如 Im glad to meet you. The patient asked to be operated on at once. 2进行式:不定式的进行式所表示的动作与谓语动词动作同时发生,例如: The boy pretended to be working hard. He seems to be reading in his room. 3完成式:不定式的完成式表示的动作发生在
6、谓语动词动作之前,例如: I regretted to have told a lie. I happened to have seen the film.2不定式的句法功能:1作主语: To finish the work in ten minutes is very hard. To lose your heart means failure. 动词不定式短语作主语时,常用it作形式主语,真正的主语不定式置于句后,例如上面两句可用如下形式: It is very hard to finish the work in ten minutes. It means failure to lose
7、 your heart. 2作表语: Her job is to clean the hall. He appears to have caught a cold. 3作宾语:常与不定式做宾语连用的动词有:want, hope, wish, offer, fail, plan, learn, pretend, refuse, manage, help, agree, promise, prefer等。如果不定式宾语后面有宾语补足语,那么用it作形式宾语,真正的宾语不定式后置,放在宾语补足语后面,例如: Marx found it important to study the situation
8、 in Russia. 动词不定式也可充当介词如but或except的宾语,如: I have no choice but / except to stay here. He did nothing last Sunday but / except repair his bike. 注意:but / except前有实意动词do及相应形式时,不定式符号to常省略。动词不定式前有时可与疑问词连用,如: He gave us some advice on how to learn English. 4作宾语补足语: 在复合宾语中, 动词不定式可充当宾语补足语,如下动词常跟这种复合宾语:want,
9、wish, ask, tell, order, beg, permit, help, advise, persuade, allow, prepare, cause, force, call on, wait for, invite. 此外,介词有时也与这种复合宾语连用,如: With a lot of work to do, he didnt go to the cinema 以下动词后:5看( look at,see,watch,notice,observe ), 3使 ( make,let,have ), 2听 ( listen to,hear ),1感觉 ( feel ) 等可与不带t
10、o的不定式连用作宾语补足语; 但改为被动语态时,不定式要加to。help后的to在主动被动句中均可加可省。如: I saw him cross the road. He was seen to cross the road. I helped him ( to) cross the road.第一个句子中的cross也可变成crossing; 第二句中的to cross也可变成crossing。具体可参考后面的三现在分词注意: 以下结构中用不定式作主语补足语:sb / sth. be said / believed / known / reported / considered / found
11、等+ to不定式。如: He is said to have gone abroad. ( = It is said that he has gone abroad.) Heat is considered to be a form of energy. ( = It is considered that heat is a form of energy)5作定语:动词不定式作定语,放在所修饰的名词或代词后。与所修饰名词有如下关系: 动宾关系: I have a meeting to attend. ( attend a meeting )注意:此时不定式中的动词或动词短语应是及物动词;其后是
12、否接介词、用什么介词要根据句子实际情况。如: I have nothing to write. ( write nothing. 说明书写的内容) I have nothing to write about. ( write about sth. 说明关于哪方面的话题而书写) I have no pen to write with. ( write with a pen. 说明书写的工具) I have no paper to write on. ( write on paper. 说明书写在纸上面)不定式为不及物动词时,所修饰的名词如果是地点、工具等,也应有必要的介词,如: He found
13、 a good house to live in. The child has nothing to worry about. What did you open it with? 如果不定式修饰time, place, way等时,可以省略介词: He has no place to live. This is the best way to work out this problem. 如果不定式所修饰的名词是不定式动作承受者,不定式可用主动式也可用被动式: Have you got anything to send? ( you send anything, 发出动作send的人为you
14、) Have you got anything to be sent? ( 发出动作send的人不是该句的主语you, 而是另有其人)说明所修饰名词的内容: We have made a plan to finish the work. 被修饰名词是不定式逻辑主语: He is the first to get here. 6作状语:表目的: He worked day and night to get the money. To buy the watch chain, she sold her hair. 注意不定式放句首时,逻辑主语与句子主语要一致: To save money, eve
15、ry means has been tried. To save money, he has tried every means. To learn English well, a dictionary is needed. To learn English well, he needs a dictionary. 表意想不到的结果, 常用only、just或never等放在不定式前表示强调: He arrived late to find the train gone. I visited him only to find him out. His father left when he w
16、as young, never to be heard again.表原因: They were very sad to hear the news. 表程度: Its too dark for us to see anything. The question is simple for him to answer. 7作独立成分: To tell you the truth, I dont like the way he talked. 8不定式的省略:保存to省略do动词。 If you dont want to do it, you dont need to. 不定式的省略。以下短语中,
17、如果意义明确,常常省略到to:want to , wish to , hope to , like to , hate to , plan to , try to , love to , have to , ought to , need to , used to , be able to9不定式的并列:由and, or和than连接的两个不定式,第二个to 可以省去to。 He wished to study medicine and become a doctor. 二动名词:动名词既具有动词的一些特征,又具有名词的句法功能。 1动名词的形式:Ving; 否认式:否认性副词如not+ 动名
18、词1一般式: Seeing is believing. 2被动式: He came to the party without being invited 3完成式: We remembered having seen the film. 4完成被动式: He forgot having been taken to Guangzhou when he was five years old. 5否认式:not + 动名词 I regret not following his advice.6复合结构:物主代词或名词所有格+ 动名词 He suggested our / us / Li Hua /
19、Li Huas trying it once again. His / Li Huas not knowing English troubled him a lot. 2动名词的句法功能: 1作主语: Reading aloud is very helpful. Collecting stamps is interesting.当动名词短语作主语时常用it作形式主语。 Its no use quarrelling.2作表语,对主语说明、解释。例如: Her job is washing, cleaning and taking care of the children. 她的工作是洗刷、清扫和
20、照顾孩子。比拟:She is washing, cleaning and taking care of the children. In the ant city, the queens job is laying eggs. 3作宾语: They havent finished building the dam. We have to prevent the air from being polluted. 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,假设跟有宾语补足语,那么常用形式宾语it,例如: We found it no good making fu
21、n of others. 要记住如下动词及短语只跟动名词作宾语: enjoy, finish, suggest, avoid防止, excuse , delay, imagine, keep, miss, consider, admit成认,deny否认, mind, permit, forbid, practise, risk冒险, appreciate感谢, be busy, be worth, feel like, cant stand, cant help情不自禁地, think of, dream of, be fond of, prevent (from), keep from,
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