1. 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 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.
2.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.
To do two things at a time is to do neither.一次做两件事等于未做.
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 would 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 中经常考到的地方.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-- 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 令人担心的-- worried 感到担心的
3.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) 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
promise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 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.
(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
can’t help不禁 can’t stand受不了 confess坦白 consider 考虑
delay延迟 deny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 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使用计算器.
(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 do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:
I should like to see him tomorrow.
10)need, want, require, deserve +动名词表被动意义;+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.
Don’t 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 don’t 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.
Let’s 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 didn’t 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.
4. 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.
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,you'll 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 him.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 too…to, too…not to , but/only too… to, too ready/eager/glad/anxious to 表 示肯定意义. 例:
You will never be too careful in the exam. 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 Ming’s 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.
祝学习进步!
参考资料:http://zhidao.baidu.com/question/18802284.html