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不定式和动名词作主语的区别精解.doc

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1、1不定式和动名词作主语的区别:2008-06-19 11:06不定式和动名词作主语的区别: (1) 动名词作主语通常表示抽象动作;而不定式作主语表示具体动作。 Smoking is prohibited(禁止)here这里禁止抽烟。(抽象) It is not very good for you to smoke so much你抽这么多烟对你身体很不好。(具体) (2) 动名词作主语时,通常用以表示一件已知的事或经验。不定式短语通常用来表示一件未完成的事 或目的。 Climbing mountains is interesting爬山很有趣。(经验) Driving a car during

2、 the rush hour is tiring在高峰时刻开车令人厌烦。(经验) To finish the task will take a long time. 要完成这项任务将要花费很长时间。(具体) (3) 不定式做主语,一般用 it 当形式主语,把作主语的不定式短语后置。 It took me only five minutes to finish the job. 不定式、动名词和分词作表语的区别: (1) 不定式作表语 1) 不定式作表语一般表示具体动作,特别是表示将来的动作。 2To do two things at a time is to do neither一次做两件事等

3、于未做。 2)如果主语是不定式,表语也必须是不定式。 To see is to believe.百闻不如一见。 To work means to earn a living工作就是为了生活。 3) 如果主语是以aim,duty,hope,idea,happiness,job,plan,problem,purpose,thing,wish 等 为中心的名词,或以 what 引导的名词性从句,不定式作表语是对主语起补充说明作用。 His wish is to buy a luxurious car in the near future 他的希望是在不远的将来买一辆豪华轿车。 What I woul

4、d suggest is to start work at once. 我的建议是立刻开始干。 The most important thing is to negotiate with them about the future of the plant (2) 动名词作表语:动名词作表语,表示抽象的一般性的行为。 Our work is serving the people我们的工作是为人民服务。 His hobby is collecting stamps他的爱好是集邮。 (3) 分词作表语 分词做表语有两种情况,一种是现在分词做表语,一种是过去分词做表语,这两者区别是考试 3中经常考到

5、的地方。一般来说,表示心理状态的动词如excite,interest 等都是及物动词,汉语意思不 是“激动”,“高兴”,而是“使激动”、“使高兴”,因而现在分词应该是“令人激动的”、“令人高兴 的”,过去分词则是“感到激动的”和“感到高兴的”。所以,凡表示“令人的”都是-ing 形式, 凡是表示“感到”都用-ed 形式。例: The cartoon is interesting to children. 这部卡通片对孩子来说令人兴趣。 Children are interested in the cartoon. 孩子们对这部卡通片感兴趣。 这类动词常见的有: delighting 令人高兴的

6、- delighted 感到高兴的 disappointing 令人失望的 disappointed 感到失望的 encouraging 令人鼓舞的- encouraged 感到鼓舞的 exciting 令人激动的- excited 感到激动的 interesting 令人感到高兴- interested 感到高兴的 pleasing 令人愉快的- pleased 感到愉快的 puzzling 令人费解的- puzzled 感到费解的 satisfying 令人满意的- satisfied 感到满意的 surprising 令人惊异的- surprised 感到惊异的 worrying 令人担

7、心的- worried 感到担心的 4Travelling is interesting but tiring旅行是有趣的,但是使人疲劳。 The pupils will get confused if they are made to learn too much如果要学生学得太多,他们会感到糊 涂的。 The argument is very convincing他的论点很令人信服。 They were very excited at the news听到这个消息,他们非常激动。 不定式和动名词作宾语的区别: 英语中大多数动词既可跟不定式,也可跟动名词作直接宾语,但有些动词要求: (1)

8、不定式做宾语和宾语补足语 1) 下面的动词要求不定式做宾语 afford 负担得起 agree 同意 appear 似乎,显得 arrange 安排 ask 问 attempt 企图 beg 请求 begin 开始 choose 选择 claim 要求 decide 决定 demand 要求 desire 愿望 determine 决定 expect 期望 fail 不能 forget 忘记 happen 碰巧 hate 憎恨,厌恶 hesitate 犹豫 hope 希望 intend 想要 learn 学习 long 渴望 love 爱 manage 设法 mean 意欲,打算 need 需

9、要 neglect 忽视 offer 提供 omit 忽略,漏 other 扰乱;烦恼 plan 计划 prefer 喜欢,宁愿 prepare 准备 pretend 假装 5promise 承诺,允许 refuse 拒绝 regret 抱歉,遗憾 seek 找,寻觅 start 开始 try 试图 volunteer 志愿 want 想要 wish 希望 例如:He managed to pass the maths exam this time. 这次他设法通过了数学考试。 2) 下面的动词可用不定式做宾补:动词+宾语+动词不定式: advise 劝告 allow 允许 ask 要求,邀请

10、 beg 请求 cause 引起 command 命令 direct 指导 drive 驱赶 enable 使能够 encourage 鼓励 entitle 有资格 forbid 禁止 force 强迫 get 请,得到 hate 憎恶 help 帮助 inspire 鼓舞 instruct 指示 intend 想要,企图 invite 吸引,邀请 lead 引起,使得 leave 使,让 like 喜欢 mean 意欲,打算 need 需要 oblige 不得不 order 命令 permit 允许 prefer 喜欢,宁愿 prompt 促使 pronounce 断定 recommend

11、劝告,推荐 remind 提醒 request 请求 require 要求 teach 教 tell 告诉 tempt 劝诱 train 训练 urge 激励,力说 want 想要 warn 告诫 wish 希望 例如:Teachers often encourage us to learn English well. 老师经常鼓励我们要学好英语。 6(2) 有些动词只能用动名词作宾语 admit 承认 appreciate 欣赏 avoid 避免 bear 忍受 cant help 不禁 cant stand 受不了 confess 坦白 consider 考虑 delay 延迟 deny

12、否认 dislike 不喜欢,讨厌 endure 忍受 enjoy 享有,喜爱 escape 逃跑,逃避 excuse 借口 favor 造成,偏爱 finish 完成,结束不得 forgive 原谅 hate 讨厌 imagine 设想 involve 卷入,包含 keep 保持 mention 说到,讲到 mind 介意 miss 错过 permit 允许 postpone 延迟,延期 practise 实行,实践 prevent 阻止 resist 抵抗,阻止 risk 冒险 suggest 建议 tolerate 忍受 例如:They decided to delay holding

13、the sports meeting because of the hard rain. 由于大雨他们决定推迟召开运动会。 (3)有些动词比如 allow, advise, permit, encourage 等后面直接跟动词只能是动名词,如果后面跟宾补则只能是不定式。例如: Our school allows using calculators in the maths exam. 我们学校允许在数学考试中使用计算器。 Our school allows students to use calculators in the maths exam. 我们学校允许学生在数学考试中 7使用计算器。

14、 (4) 有些动词后使用动名词和动词不定式作宾语的差别 1)forget to do 忘记要去做某事(此事未做) forget doing 忘记做过某事(此事已做过或已发生) 2)stop to do 停止、中断(某件事),目的是去做另一件事 stop doing 停止正在或经常做的事 3)remember to do 记住去做某事(未做) remember doing 记得做过某事(已做) 4) regret to do 对要做的事遗憾 regret doing 对做过的事遗憾、后悔 5)try to do 努力、企图做某事 try doing 试验、试一试某种办法 6) mean to d

15、o 打算,有意要 mean doing 意味着 7)go on to do 继而(去做另外一件事情) go on doing 继续(原先没有做完的事情) 8)propose to do 打算(要做某事) proposing doing 建议(做某事) 9) like /love/hate/ prefer +to do 表示具体行为;+doing sth 表示抽象、倾向概念 (注)如果这些动词前有 should 一词,其后宾语只跟不定式,不能跟动名词。例如: 8I should like to see him tomorrow 10)need, want, require, deserve +动

16、名词表被动意义;+不定式被动态表示“要(修、清理等)”意 思。 例: The room needs cleaning / to be cleaned. 这房间需要打扫一下。Dont you remember seeing the man before? 你不记得以前见过那个人吗? You must remember to leave tomorrow你可要记着是明天动身。 I dont regret telling her what I thought我不后悔给她讲过我的想法。(已讲过) I regret to have to do this,but I have no choice我很遗憾必

17、须这样去做,我实在没办法。(未 做但要做) You must try to be more careful你可要多加小心。 Lets try doing the work some other way让我们试一试用另外一种办法来做这工作。 I didnt mean to hurt your feeling我没想要伤害你的感情。 This illness will mean(your)going to hospital得了这种病(你)就要进医院。 不定式和分词作状语的区别: (1) 现在分词与过去分词作状语的区别。 9现在分词做状语与过去分词做状语的最主要区别在于两者与所修饰的主语的主动与被动关

18、系的 区别。 1)现在分词作状语时,现在分词的动作就是句子主语的动作,它们之间的关系是主动关系。 He went out shutting the door behind him. 他出去后将门随手关上。 Not knowing what to do, he went to his parents for help. 由于不知如何办是好,他去找父母帮 忙。 2)过去分词作状语时,过去分词表示的动作是句子主语承受的动作,它们之间的关系是被动关 系。 Given more attention, the trees could have grown better. 如果对这些树多关心一些,它们本来会

19、 长得更好。 Faced with difficulties, we must try to overcome them. 在遭遇到困难的时候,我们必须设法克 服它们。 (2) 动词不定式和分词作状语放在句末的区别 1) 分词作状语一般表示伴随,而不定式常常表示目的。 They stood by the roadside talking about the plan他们站在10路边谈论着这个计划。(伴随) They stood by the roadside to talk about the plan他们站在路边为的是谈论这个计划。(目的) 2) 分词作状语放在句子开头,除表示原因之外有时表

20、示时间或条件。动词不定式作状语时,除 了表示目的以外,还表示结果或原因。 Reading attentively,he forgot the time for lunch由于在专心读书,他忘了吃午饭的时间。(原 因) Reading carefully,he found something he had not known before他仔细读书时,发现了一些 从前不知道的东西。(时间) Reading carefully,youll learn something new只要你仔细阅读,你会学到一些新的东西。(条 件) His family was too poor to support h

21、im他的家庭太穷,不能维持他的生活。(结果) The boy is not tall enough to reach the book shelf这男孩个子不够高,手伸不到书架。(结果) We are glad to hear the news我们很高兴听到这消息。(原因) (3)下面一些句型是不定式做状语时候应该注意的: A:not/never tooto, toonot to , but/only too to, too 11ready/eager/glad/anxious to 表 示肯定意义。 例: You will never be too careful in the exam.

22、考试时你越仔细越好。 He is too careful not to notice something abnormal. 他很仔细会注意到异常情况的。 B:做结果状语的不定式只能出现在句子的末尾,常见的不定式动词有:find, hear, see, be told, form, give, make, produce, say 等。 例如: I was too angry at that to say about it. 我对此气得话也说不出来。 He hurried to the bank only to find/be told that it was closed. 他匆匆忙忙赶到银

23、行却发现关门 了。 C:不定式做状语时,其逻辑主语一般为句子的主语,否则用 for 引导主语。 例: Li Mings mother went to the lecture hall early for him to get a good seat. 李明的母亲一早就去演讲厅了,为了让他可以得到一个好座位。 12动词不定式:(to)+do,具有名词、形容词、副词的特征。 1、不定式的形式: 主 动 被 动 一般式 To write to be written 进行式 to be writing / 完成式 to have written to have been written 否定式:not

24、 + (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同时发生或发生在谓语动词动作之后, 例如: Im glad to meet you. He seems to know a lot. We plan to pay a visit. He wants to be an artist. The patient asked to be operated on at once. The teacher ordered the work to be done. 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 w

25、orking 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谓语动词动作之前,13例如: I regretted to have told a lie. I happened to have seen the film. He is pleased to have met his friend. 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

26、时,常用形式主语 it 作形式主语,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 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, promi

27、se, prefer, 如果不定式(宾语)后面有宾语补足语,则用 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 in Russia. 动词不定式也可充当介词宾语,如: 14I have no choice but to stay here. He did nothing last Sunday but repair his bike. 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

28、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, 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. 有些动词如 make, let, see, watch, hear, feel, have 等与不带有 to 的不定式连用

29、,但改为被动语态时,不定式要加 to, 如: I saw him cross the road. He was seen to cross the road. 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: A)动宾关系: I have a meeting to attend. 注意:不定式为不及物动词时,所修饰的名词如果是地点、工具等,应有必要的介词,如: 15He found a good house to live in. The child has nothing to worry about. What did you open it with?

30、如果不定式修饰 time, place, way,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? Have you got anything to be sent? B)说明所修饰名词的内容: We have made a plan to finish the work. C)被修饰名词是不定式逻辑主语: He is the first to get

31、here. 6)作状语: A)表目的: He worked day and night to get the money. She sold her hair to buy the watch chain. 注意不定式放句首时,逻辑主语与句子主语要一致: wrong: To save money, every means has been tried. right: To save money, he has tried every means. wrong: To learn English well, a dictionary is needed. 16right: To learn En

32、glish well, he needs a dictionary. B)表结果: He arrived late to find the train gone. 常用 only 放在不定式前表示强调: I visited him only to find him out. C)表原因: They were very sad to hear the news. D)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,

33、I dont like the way he talked. 8)不定式的省略:保留 to 省略 do 动词。 If you dont want to do it, you dont need to. 9)不定式的并列:第二个不定式可省略 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: 语 态 主动语态 被动语态 一般式 doing being done 17完成式 having done having been done 否定式:not + 动名词

34、1)一般式: Seeing is believing. 眼见为实。 2)被动式: He came to the party without being invited. 他未被邀请就来到了晚会。 3)完成式: We remembered having seen the film. 我们记得看过这部电影。 4)完成被动式: He forgot having been taken to Guangzhou when he was five years old. 他忘记五岁时曾被带到广州去过。 5)否定式:not + 动名词 I regret not following his advice. 我后

35、悔没听他的劝告。 6)复合结构:物主代词(或名词所有格)+ 动名词 He suggested our trying it once again. 他建议我们再试一次。 His not knowing English troubled him a lot. 他不懂英语给他带来许多麻烦。 2、动名词的句法功能: 1)作主语: Reading aloud is very helpful. 朗读是很有好处的。 Collecting stamps is interesting. 集邮很有趣。 18当动名词短语作主语时常用 it 作形式主语。 Its no use quarrelling. 争吵是没用的。

36、 2)作表语: In the ant city, the queens job is laying eggs. 在蚂蚁王国,蚁后的工作是产卵。 3)作宾语: They havent finished 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,例如: We found it no good making fun of others. 我们发现取笑

37、他人不好。 要记住如下动词及短语只跟动名词作宾语: enjoy, finish, suggest, avoid(避免), excuse ,delay, imagine, keep, miss, consider, admit(承认),deny(否认), mind, permit, forbid, practise, risk(冒险), appreciate(感激), be busy, be worth, feel like, cant stand, cant help, think of, dream of, be fond of, prevent(from),keep from, stop(

38、from),protectfrom, 19set about, be engaged in, spend(in), succeed in, be used to, look forward to, object to, pay attention to, insist on, feel like 4)作定语: He cant walk without a walking-stick. 他没有拐杖不能走路。Is there a swimming pool in your school. 你们学校有游泳池吗?5)作同位语: The cave, his hiding-place is secret. 那个山洞,他藏身的地方很秘密。 His habit, listening to the news on the radio remains unchanged. 他收听收音机新闻节目的习惯仍未改变。

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