非谓语动词
二．非谓语动词的被动语态1.非谓语动词被动语态的意义
3.非谓语动词作宾语
4. 非谓语动词作表语
非谓语动词 非谓 相对谓语动词的时间意义例句 语动 词 说明行为在谓语动词所表示的行为之后，多数I want to go home. 一般是那些表愿望的词： want; hope; expect; wish I hope to see you. 等。 式不 I saw him come in. 定式 说明行为与谓语动词表示的行为同时发生，多 数是那些省略不定式符号的词，一般是复合宾 He helped him (to) carry things. 语。 表示动作与谓语动词表示的动作同时发出。We enjoyed seeing the film. I am thinking of taking over the job. 在动词 insist on; rely on; count on(相信) He insisted on doing that work 一般 等后表示动作在谓语动词表示的动作之后发 式动 生。 名词 在有些明确表示时间先后的动词和介词on;I remember seeing him before. upon after代替完成动名词表 示的动作在谓语 动词表示的动作先发生。 说明分词表示的动作和句中谓语 持续性 动词表示的动作同时发生。 现动词 在 一般 分说明分词表示的动作发生之后， 式分 词终止性 句中谓语动词表示的动作立刻发 词动词 生。 过持续性通常说明分词表示的动 作，此句动词中谓语动词表示的动作先发生。 去On arriving Beijing, he went to see his friend. He stood there speaking. Holding a book under his arm, he entered the room. Entering the room, I found nobody in. Turning to the right, you will find the post office. Written in simple English, the book is easy to read.
最新英语非谓语动词用法总结(完整) 一、单项选择非谓语动词 1．Students surf the internet _______ more information about the university they are dreamt of. A．found B．finding C．having found D．to find 【答案】D 【解析】考查非谓语动词。句意：学生们上网是为了找到他们理想大学的更多的信息。此处表示目的用不定式，指上网的目的。故选D。 2．Look over there! There is a long, winding path ________ up to the house. A．lead B．leading C．led D．to lead 【答案】B 【解析】 【详解】 考查非谓语动词。句意：看那边!有一条长长的蜿蜒小路通向那所房子。分析句式可知，这是个there be 句型，因此，此处用非谓语动词，path与lead是主动关系，因此用现在分词，故选B。 3．______ to nuclear radiation, even for a short time, may influence genes in human bodies. A．Having exposed B．Being exposed C．To expose D．Exposed 【答案】B 【解析】 【详解】 考查动名词。句意：暴露于核辐射中甚至很短时间都会影响人体的基因。分析句子成分发现even for a short time是插入语，may influence是谓语，前面的部分应该是主语，be exposed to“暴露于”，要用动名词Being exposed to。故B选项正确。 4．The lecture, _______at 7:00 pm last night, was followed by an observation of the moon with telescopes. A．starting B．being started C．to start D．to be started 【答案】A 【解析】 选A start与逻辑主语the lecture之间为主动关系，故排除B、D两项。不定式作定语时，常表示动作尚未发生，故排除C项，此处用现在分词作后置定语，表示主动。 第四步：根据与谓语动词的先后关系确定时态 非谓语动词表示的动作发生在谓语动词表示的动作之前用过去分词或v.-ing形式/不定式的
非谓语动词用法归纳 一、表格的用法 1. doing 的用法 （1）在要求动词后（作宾语）：avoid 避免appreciate 感激/欣赏acknowledge 承认/自 认admit 承认advocate 提倡/ 主张consider 考虑can't help 不禁can't stand 受不了contemplate 细想complete 完成confess 坦白dislike 不喜欢，讨厌deserve 值得delay 延迟deny 否认dread 可怕defer 拖延detest 嫌恶enjoy 享有/喜爱envy 嫉妒endure 忍受excuse 借口escape 逃跑/ 逃避finish 完成forgive 原谅fancy 幻想/ 爱好favor 造成/ 偏爱figure 描绘/ 计算hate 讨厌imagine 设想involve 卷入/ 包含keep 保持miss 错过mention 说到/ 讲到mind 介意pardon 原谅/ 饶恕permit 允许postpone 推迟practice 实行/实践prevent 阻止quit 放弃停止risk 冒险recall 回想resist 抵抗/ 阻止resume 恢复repent 悔悟resent 怨恨stand 坚持/ 忍受suggest 建议save 营救/ 储蓄tolerate 忍受
worth 值得 You should try to avoid making mistakes. The book is worth reading. The book deserves reading. （2）表进行 Walking on the grassland, I saw a snake.=When I was walking on the grassland, I saw a snake. The man speaking English is Tom. = The man who is speaking English is Tom. （3）表主动 The man speaking English is Tom = The man who speaks English is Tom. = The man who spoke English is Tom. Nobody dinks boiling water but boiled water.= Nobody dinks water that is boiling but the water that has boiled. （4）表伴随 I stand outside waiting for Mr. Chen. I lie in bed reading a novel. （5）表性质；特点 The film is very moving. She is understanding, so you had better discuss your business with her. 6）概括性, 一般性 Climbing mountain is very interesting.
非谓语动词 一.动词不定式 1.动词不定式的构成：to +动词原形(这里的to是不定式符号，本身无词义) 否定：not+ (to +) 动词原形 do作主语常用it作形式主语 例: To learn English well is useful. It is useful (for us) to learn English well. 注意：在kind, good, nice, clever 等表示人的品质的形容词后，不用for而用of. 2. 一些表示命令，打算或希望的动词后只接动词不定式作宾语：would like, like (想要), want, wish, hope, decide, pla n, except 等。 例: Would you like too see a film this evening? 3. 在find, think 后跟动词不定式作宾语时，常用it代替，而将真正的宾语放在句末。 例: I find it easy to read English every day. 4. 常见的一些不带to的动词不定式作宾语 Why not do ........ , why don' t you do …,had better (not) do …,would rater do …, could/ would/ will you please (not) do … 例: I would rather stay in the room. 5. 一些使役动词和感官动词用不定式作宾语，但to要省略。 一感(fell )、二听(hear, listen to )、三让(let/ make/ let )、四看(look at, see, watch, notice )、五帮助(help ),但变为被动语态是必须加上to. 例: My friends were made to work the whole night by the boss. 6. 不定式常和疑问词what,which,when,where,how 连用，相当于一个宾语从句。 二.动名词 1. 动名词的构成：动词原形+-i ng 2. 动名词的句法功能
非谓语动词讲解 1. 动词不定式 （1）动词不定式的构成： 不定式的基本形式为：to+动词原形，有时可以不用to，这里的to是不定式符号，本身无词义，动词不定式的否定形式是not+(to+)动词原形。 （2）动词不定式的句法功能： 1)不定式作主语 动词不定式作主语时，常用it作形式主语，而将真正的主语放在句末，其结构为：It + be + adj. +(for/of sb.)+动词不定式。如： To learn English well is useful．→It is useful to learn English well．
学好英语很有用。 It’s important for us to protect the environment． 保护环境对我们来说很重要。 注意：在kind，good，nice，clever等表示人的品质的形容词后，不用for而用of。如： It’s very kind of you to help me．你帮助我真是太好啦。 It’s very clever of you to do like that．你那样做真是太聪明啦! 2)不定式作宾语 ①一些谓语动词后只能用不定式作宾语，常见的这类词是表示命令、打算或希望的，如：would like，like，want，wish，hope，decide，plan，expect等。 如：Would you like to see a film this evening? 你今晚想去看电影吗? ②在find，think后跟不定式作宾语时，常用it代替，而将真正的宾语放在句末。 如：I find it easy to read English every day．我发现每天读英语很容易。 ③常见的一些不带to的动词不定式 why not do...，why don’t you do...，had better(not) do...，would rather do，could/would/will you please(not) do... 如：I would rather stay in the room．我宁愿待在房间里。 3)不定式作宾语补足语 不定式作宾语补足语时与宾语有逻辑上的主谓关系。如：tell，ask，want，allow，get，would like，encourage 后常跟动词不定式作宾语补足语。 如：Lucy asked him to turn down the radio．露西让他关小收音机。 My mother encourages me to learn Japanese．我妈妈鼓励我学日语。 注意： 还有一些使役动词和感官动词也用不定式作宾补，这时不定式要省略to。这些动词有：一感(feel)、二听(hear，listen to)、三让(let，make，have)、四看(look at，see，watch，notice)，但变被动语态时，必须加上to。 如：My friends were made to work the whole night by the boss． 老板让我的朋友们工作了一整夜。 4)不定式作定语
高考英语非谓语动词用法总结(完整) 一、单项选择非谓语动词 1．The rainforest is an amazing place, ________ with plants and animals that aren’t found anywhere else in the world. A．filling B．filled C．being filled D．to fill 【答案】B 【解析】考查非谓语动词。句意：热带雨林是一个令人惊讶的地方，充满了世界其他地方不能找到的动植物。固定词组：be filled with被……充满，此处place和fill之间是一种被动关系，所以用过去分词做伴随状态，故选B。 2．115．______ his love, Chris sent his mom a thank-you note on Mother’s Day. A．Expressing B．Expressed C．To express D．Having expressed 【答案】C 【解析】考查动词不定式。句意：为了表达他的爱，克里斯在母亲节那天给他的妈妈寄了一条感谢信。用不定式表目的，故选C。 3．After receiving the Oscar for Best Supporting Actress, Anne Benedict went on all the people who had helped in her career. A．to thank B．thanking C．having thanked D．to have thanked 【答案】A 【解析】 试题分析：句意：在获得奥斯卡最佳女配角后，Anne Benedict继续感谢所有帮助她演绎生涯的人。go on to do继续做不同的事情，所以选A。 考点：考查不定式 【名师点睛】不定式有一些具体的用法，可以做宾语，定语，状语。还有不定式的不同形式：to do；to be doing；to have done。这题要注意go on to do“继续做不同的事情”和go on doing“继续做相同的事情”的区别。结合语境是关键。 4．Pressed from his parents, and ____ that he has wasted too much time, the boy is determined to stop playing video games. A．realizing B．realized C．to realize D．being realized 【答案】A 【解析】 试题分析：考查非谓语动词的用法。句意：被父母迫使同时自己也意识到他已经浪费了太多时间，这个男孩决定停止玩电脑游戏。首先要弄清楚本句中的and连接的成分是非谓语
否定形式: not +不定式,not + 动名词,not + 现在分词
1.不定式与动名词作主语得区别 (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.您抽这么多烟对您身体很不好。(具体) (2)动名词作主语时,通常用以表示一件已知得事或经验。
不定式短语通常用来表示一件未完成得事或目得。 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) (3)不定式做主语,一般用it当形式主语,把作主语得不定式短语后置。 it took me only five minutes to finish the job、 动名词或不定式都可以在句中作主语,但在下列句型中常用动名词作主语。 it is / was no use / good + doing sth、 it is / was not any use / good + doing sth、 it is / was of little use / good + doing sth、 it is / was useless doing sth、 it is no use crying over spilt milk、覆水难收。 it is of little good staying up too late every day、 每天都熬夜没有什么好处 2.不定式与动名词作宾语得区别 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)不定式做宾语与宾语补足语 1)下面得动词要求不定式做宾语 afford, agree, arrange, choose, decide, hope, expect, offer, plan, promise, determine, demand, manage, fail, prepare, refuse, pretend, seem 常跟不定式作宾语得动词歌诀: 三个希望两答应,两个要求莫拒绝, 设法学会做决定,不要假装在选择。 hope; wish; want ; agree; promise demand; ask; refuse manage; learn; decide pretend ; choose 想要拒绝命令,需要努力学习,期望同意帮助,希望决定开始。
非谓语动词 一．动词不定式 1.动词不定式的构成：to + 动词原形（这里的to是不定式符号，本身无词义） 否定：not+ (to +) 动词原形 1.to do 作主语常用it 作形式主语 例：To learn English well is useful.→ It is useful（for us）to learn English well. 注意：在kind, good, nice, clever等表示人的品质的形容词后，不用for而用of. 2.一些表示命令，打算或希望的动词后只接动词不定式作宾语：would like, like（想要）, want, wish, hope, decide, plan, except等。 例：Would you like too see a film this evening? 3.在find, think后跟动词不定式作宾语时，常用it代替，而将真正的宾语放在句末。 例：I find it easy to read English every day. 4.常见的一些不带to 的动词不定式作宾语 Why not do ……, why don’t you do…, had better (not) do…, would rater do…, could/ would/ will you please (not) do… 例：I would rather stay in the room. 5.一些使役动词和感官动词用不定式作宾语，但to要省略。 一感（fell）、二听（hear, listen to）、三让（let/ make/ let）、四看（look at, see, watch, notice）、五帮助（help）,但变为被动语态是必须加上to. 例：My friends were made to work the whole night by the boss. 6.不定式常和疑问词what,which,when,where,how连用，相当于一个宾语从句。 二．动名词 1.动名词的构成：动词原形+-ing 2.动名词的句法功能
非谓语动词用法详解 动词的非谓语形式有三种：不定式、动名词和分词 (一)不定式 不定式由“to十动词原形”构成，其否定形式是“not to do”．不定式可以带宾语或状语构成不定式短语，没有人称和数的变化，但有时态和语态的变化．不定式可作主语、宾语、状语、表语和定语，但不能单独作谓语．不定式的逻辑主语有时用“for十名词或代词宾格”构成． 1．不定式的用法： l)作主语．不定式短语作主语时，往往放在谓语之后，用it作形式主语．例如： To see is to believe． It is right to give up smoking． 2)作宾语．不定式短语作宾语时，如果还带有宾语补足语。往往把不定式宾语放在宾语补足语之后，而用it作形式宾语．例如： He wanted to go． I find it interesting to study work with him. 3)作宾语补足语．例如： He asked me to do the work with him. 注意：在feel，hear，listen to，look at，notice, observe，see，watch，have, let，make等词后的补足语中，不定式不带to．但是这些句子如果变成被动结构时，就必须带to．例如 I often hear him sing the song． He is often heard to sing the song． 注意：不定式动词在介词but，except，besides后面时，如果这些介词之前有行为动词do的各种形式，那么，这些介词后的不定式不带to，否则要带to．如： She could do nothing but cry. What do you like to do besides swim? I have no choice but to go． 动词help之后，带to或不带to都可以。 Will you please help me (to) take this suitcase? 请你帮我提一下这个衣箱好吗？She often helps her mother (to) clean their house. 她经常帮助她妈妈打扫房子。 4)作定语．例如： I have some books for you to read． 注①作定语的不定式如果是不及物动词，或者不定式所修饰的名词或代词是不定式动作的地点、工具等，不定式后面须有相应的介词．例如： He is looking for a room to live in． There is nothing to worry about．
一、表格的用法 1.doing 的用法 （1）在要求动词后（作宾语）：avoid避免appreciate 感激/欣赏acknowledge承认/自认admit 承认advocate 提倡/主张consider 考虑can't help不禁can't stand受不了contemplate细想complete完成confess坦白dislike 不喜欢，讨厌deserve值得delay延迟deny否认dread可怕defer拖延detest嫌恶enjoy享有/喜爱envy嫉妒endure忍受excuse借口escape逃跑/逃避finish完成forgive原谅fancy幻想/爱好favor 造成/偏爱figure描绘/计算hate讨厌imagine设想involve卷入/包含keep保持miss错过mention说到/讲到mind 介意pardon原谅/饶恕permit允许postpone推迟practice 实行/实践prevent阻止quit放弃停止risk冒险recall回想resist抵抗/阻止resume恢复repent悔悟resent怨恨stand坚持/忍受suggest建议save营救/储蓄tolerate忍受worth值得You should try to avoid making mistakes. The book is worth reading. The book deserves reading. （2）表进行 Walking on the grassland, I saw a snake.=When I was walking on the grassland, I saw a snake. The man speaking English is Tom. = The man who is speaking English is Tom. （3）表主动 The man speaking English is Tom = The man who speaks English is Tom. = The man who spoke English is Tom. Nobody dinks boiling water but boiled water.= Nobody dinks water that is boiling but the water that has boiled. （4）表伴随 I stand outside waiting for Mr. Chen. I lie in bed reading a novel. （5）表性质；特点 The film is very moving. She is understanding, so you had better discuss your business with her. （6）概括性,一般性 Climbing mountain is very interesting. Driving a car during the rush hour is tiring．在高峰时刻开车令人厌烦。(概括性,一般性) Our work is serving the people． （7）动名词的逻辑主语为；①人称代词的所有格+动名词；②名词's+动名词。例如： Tom insisted on my going with them．他坚持要我和他们一起去。 He dislikes his wife's working late．他不喜欢他妻子工作得很晚。
非谓语动词的用法总结 李靖 非谓语动词（不定式、动名词、分词）不是真正意义上的谓语动词，在句中都不能单独作谓语。但都具有动词的某些特点，可以有自己的宾语或状语，构成非谓语动词短语。不定式表目的，表将来；动名词表主动，表进行；过去分词表被动，表完成。 一．作主语( 动名词、不定式、过去分词前面加being, 动名词做主语谓语动词用单数) 1）不定式、动名词都可做主语，但是动名词做主语多指抽象的概念性的动作，可以是多次的经常的行为；不定式多表示具体的动作，尤其是某一次的动作。如： Playing with fire is dangerous. 玩火危险。（泛指玩火） To play with fire will be dangerous. 玩火会发生危险。 2）用动名词做主语的句型: It’s no use/no good/pleasure doing sth 做.......没有用处/好处/乐趣 It’s a waste of time doing sth 做.... 浪费时间 It is worth doing sth 值得做某事 It is no use crying over spilt milk. 覆水难收 It is worth making an appointment before you go. 去之前预约一下是值得的。 3）不定式做主语的句型. It is + adj +for sb to do sth. 比较：表示人的品质时只能用of sb 如considerate/kind/nice/foolish/stupid/rude/cruel /wise/clever/brave/selfish/crazy/good/careful/careless/impolite/right/wrong等单词出现 时。 It is silly of you to say so. It is important for us to learn English well. It is a must/ a necessity for us to have a good command of the English language. 4) “Wh- + to 不定式”可做主语。如： When to leave hasn’t been decided yet.什么时候动身还没定呢。 Whether to drive or take the train is still a problem.是自驾车还是乘火车仍是一个问题。 5）一般情况下，不定式和动名词作主语，谓语动词一般用单数形式。如： Seeing is believing.= To see is to believe 眼见为实。 . Planting flowers needs constant watering. 但and连接的多个动名词作主语，谓语动词大多用复数（如果前后动名词的语义一致， 谓语一般用单数）。如：Lying and stealing are immoral. 说谎与盗窃是不道德的。 6) 动名词前面可以加上形容词性物主代词构成动名词的复合结构。如： ----- What made him angry? ------ Mary’s /My/His/Her /Their/ The boy’s/ The president’s being late（made him angry. 7being，构成动名词，做主语。如： . Being examined twice a year , driver must obey in this city. 经典练习：
非谓语动词用法总结 非谓语动词是历年高考英语的重要考点之一，同时也是较难掌握的难点之一。它贯穿于英语学习和考试过程的始终。但是，只要认真分析、透彻理解、看透本质、准确把握，就一定能在高考中运筹帷幄，游刃有余。 一．非谓语动词区别简表
二．不定式的用法 不定式不可作谓语，但它可以有自己的宾语、状语，构成不定式短语，在句中可以作主语、宾语、表语、定语（表用途）、状语或补足语。高考对不定式的考查主要有不定式的时态、语态、作用、否定、省略、连词＋不定式等。 作主语 不定式作主语表示具体的动作，通常指一件已知的事或目的。 不定式作主语时，谓语动词用单数。 eg:To say is a thing,to do is another.(说是一回事，做是另外一回事。)
（2）不定式短语较长时，通常放在谓语之后，用it作形式主语。 eg:①It is important to learn English well.(学好英语是重要的。) ②It is necessary for us to do the job well.(我们做好这项工作是必要的。) ③It is a great honor to be invited to give a speech here.(被邀请在这儿发表演讲是一个极大的荣幸。) 2.作宾语 （1）常只用不定式作宾语的动词有：want,wish,hope,long,expect,desire,intend ,decide,ask,promise,aim,offer,agree,plan,l earn,choose,refuse,fail,manage,pretend 等。 eg:①He refused to help me.(他拒绝帮助我.) ②She has agreed to come
非谓语动词 Non-Finite Verb I 非谓语的三种形式
II 本章要点
I非谓语语法点分述 一、不定式to do 1.不定式结构作主语 ?To see is to believe. ?It is better to see something once than to hear about it a hundred times. a.在很多情况下，特别是在口语中，常采用先行it代替主语，而把不定式后置： ?It’s a great pleasure to be here. ?It is not an easy thing to master a language. ★区分用法★ 1)直接用不定式做主语的句子显得更加正式。 2)如主语和表语都是to do，则只能采用第一种形式。 ?对敌人仁慈就是对人民残忍。 3)如是疑问句或感叹句，则只能采用第二种形式。 ?What is it like to be there? ?What a joy it was to read Barak’s book! b.用It is+形容词作表语时，由于逻辑主语不同导致的for和of的区别。 (1)for sb.句型中的形容词一般为表示事物的特征特点，表示客观形式的形容词，如： difficult, interesting, easy, impossible等。.
(2)of sb.句型中的形容词一般为表示性格、品德、心智能力，表示主观感情或态度的形容 词，如：good, kind, nice, clever, foolish等。 ★小试身手★ 1)To be fond of dancing was a certain step towards falling in love. 2)对他来说，学两门外语是很困难的。 3)你能这么说很有礼貌。 ★真题试炼★ 1)It’s important _____ the piano well. A. of him to play B. for him to play C. of him playing D. for him playing 2)It’s wrong _____ her like that. A. of you to treat B. for you to treat C. of you treating D. for you treating 2.不定式结构作表语 主语和表语都是不定式（其含义往往一是条件，一是结果），如： ?To be kind to the enemy is to be cruel to the people. ?To do that would be to cut the foot to fit the shoe.
非谓语动词用法总结 一动词不定式to do 1．以下动词后常跟不定式作宾语和宾语补足语 want to do sth agree to do sth decide to do sth plan, to do sth learn to do sth hope to do sth fail to do sth happen to do sth , allowsb to do sth asksb to do sth tell sb to do sth showt(sb)o do sth teach (sb)to do sth invite(sb) to do sth encourage(sb)to do sth prefer to do sth refuse(sb)to do sth expect to do sth offer to do sth try to do sth would like to do sth remember to do sth forget to do sth seem to do sth volunteer to do sth help sb do sth /to do sth in order to do sth get/be ready to do wish sb. to do sth. can’t wait to do have to do sth can/can’t afford t do make a decision to do sth, be sure to do sth be able to do sth stop to do sth sb need to do sth / sth need doing/ sth need to be done 2 sb be + adj（表示人心情的词）+ to do sth sb+be +sorry / glad / surprised / pleased / angry / happy / sure /excited/ amazed/relaxed/ lucky/ to do sth 3.. too …to do sth too +adj/adv+ to do sth 4.….enough to do sth adj/adv+ enough +(for sb )to do sth 5 疑问词+不定式：how ,when , where, what, which + to do sth 6 .固定短语后用动词不定式： (do)try one’s best to do sth, It takes sb some time to do sth, It’s one’s turn to do sth. It’s time(for sb.) to do sth. find/think/feel it +adj. to do sth. It’s + adj + to do sth It’s + adj + of / for sb to do sth It’s easy / hard / important/ / impossible / interesting / difficult / necessary / …for sb to do sth（adj描述不定式to do sth的特征，性质时常用for sb） It’s good / kind / nice / wise / clever/ rude / patient / polite / foolish / right / wrong /
非谓语动词用法归纳 非谓语动词 在英语中，动词不定式、动名词和分词（包括现在分词和过去分词）可以出现在句子中除谓语以外的任何一个位置上，充当句子的主语、宾语、表语、定语、状语、补语等成分，这些动词形式称为非谓语动词。 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。 Driving a car during the rush hour is tiring．在高峰时刻开车令人厌烦。(经验) （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．--次做两件事等于未做。 2）如果主语是不定式（表示条件），表语也是不定式（表示结果）。 To see is to believe.百闻不如一见。 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。 (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。 (注)动名词作表语时与进行时态中的现在分词形式相同，但其所属结构迥异，进行时态说明动作是由主语完成的。动名词做表语，说明主语的性质或情况。 His victory in the final was no more convincing than I had expected． (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。 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(部分)： attempt企图enable能够neglect忽视afford负担得起demand要求long渴望 2)下面的动词要求不定式做宾补：动词+宾语+动词不定式： allow允许forbid禁止prefer喜欢，宁愿 bear容忍implore恳求remind提醒…… (2)有少数动词只能用动名词作宾语 admit 承认tolerate忍受dislike不喜欢，讨厌 involve卷入，包含practise 实行，实践suggest建议…… (3)有些动词后使用动名词和动词不定式作宾语的差别