英语中部分否定的几种表示方法
英语中的部分否定（即不完全否定）有如下一些表示方法：
一、 all 的否定式：not all…（或：all…not）表示
Not all bamboo grows tall. 并非所有的竹子都会长得很高。
二、 both 的否定式：not…both (或：both… not)
Both (the) windows are not open. 两扇窗子并不都开着。
三、 every…的否定式：
Not every book is educative. (或：Every book is not educative.) 不是每本书都有教育意义的。 Not everyone likes this book. 并非人人都喜欢这本书。
This flower is not seen everywhere. 这花并不是随处可见的。
四、 always的否定式：
He is not always so sad. 他并不是一直都这样悲伤。
五、 entirely, altogether, completely 和quite 的否定式：
The businessman is never to be entirely trusted. 不可以完全信任商人。
He felt not altogether satisfied. 他并不完全满意。
I don't agree completely. 我并不完全同意。
What he did was not quite proper. 他做的不十分妥当。
六、 all the time 的否定式：
A foolish man doesn't make a mistake all the time. 笨人未必老是犯错误。
七、 not…and…的否定式，被否定的往往是and后面的那一部分。 例如：
He did not speak clearly and correctly. 他讲得清楚但不正确。
This film is not interesting and instructive. 这部电影有趣但无教育意义。
She cannot sing and dance. 她会唱歌但不会跳舞。
如果将and 换成or，not 对其后面的两部分就全盘否定了。
He did not speak clearly or correctly. 他讲的既不清楚也不正确。
如要对上述的all, both, every, always, 以及entirely, altogether, completely, quite 和 all the time 等词作完全否定，那就分别要用与之相对应的全否定词，如no, none, neither, no one, never, not (never)… at all 等。例如：
All of them can do it.--- None of them can do it.
Both are good.---Neither is good.
Everybody likes it. ---Nobody likes it.
He is always late. --- He is never late.
We don't trust them entirely. --- We never trust them at all.
He was here all the time. --- He was never here.
动词
1） 表示动作中状态的词叫做动词。
2） 根据其在句中的功能，动词可分为四类，分别是：实义动词（Notional Verb）、系动词（Link Verb）、助动词（Auxiliary Verb）、情态动词（Modal Verb）。
说明：有些情况下，有些动词是兼类词，例如：
We are having a meeting. 我们正在开会。 （having是实义动词。）
He has gone to New York. 他已去纽约。 （has是助动词。）
3） 动词根据其后是否带有宾语，可分为两类，分别是：及物动词（Transitive Verb）、不及物动词（Intransitive Verb），缩写形式分别为vt. 和vi.。
英语动词是句子的核心。它既决定着句子意思的表达同时又决定着句子的语法结构。难怪有人说，英语是动词和介词的语言。可见研究动词的用法在英语学习中是十分重要的。
(一、) 分清及物不及物:
分清动词的及物不及物是在英语学习中必须解决的首要问题。动词及物与不及物通常有以下几种情况：
a．主要用作及物动词。及物动词后面必须跟宾语。可以用于：
He reached paris the day before yesterday.
Please hand me the book over there.
They asked me to go fishing with them.
类似的还有：
buy, catch, invent, found, like, observe, offer, prevent, promise, raise, find, forget, receive, regard, see, say, seat, supply, select, suppose, show, make, take, tell....
b．主要用作不及物的动词。不及物动词后面不跟宾语。只能用与：
类似的还有：
agree, go, work, listen, look, come, die, belong, fall, exist, rise, arrive, sit, sail, hurry, fail, succeed.... c．既可以用作及物又可以用作不及物的动词，其意义不变。如begin 都是作
start, answer, sing, close, consider, insist, read, learn, prepare, pay, hurt, improve....
d．既可以用作及物又可以用作不及物的动词，其意义完全不同。
这类动词作不及物动词是一个意义；而作及物动词时却是另一个意义。如lift作不及物动词时是指烟雾的
He lifted his glass and drank.
类似的还有：beat vi.跳动 vt. 敲、打; grow vi.生长 vt. 种植
play vi.玩耍 vt. 打（牌、球）,演奏 smell vi.发出（气味） vt. 嗅
ring vi.（电话、铃）响vt.打电话 speak vi.讲话 vt. 说（语
言） hang vi. 悬挂 vt. 绞死 operate vi.动手术 vt. 操作
(二、) 辨别表动作与表结果的动词
表动作的动词强调动作的发生，不涉及该动词的结果。如：
He looked at the picture. He saw a picture .
前一句中的动词强调
(三、) 记住瞬间动词
英语中不少动词所表示的动作在瞬间就可以完成．如：
He arrived in paris yesterday.
而另一些动词所表示的动作则可以延续．如：
They worked until 12 o'clock last night.
特别是在现在完成时态的句子中，瞬间动词的完成时态不能跟表示一段时间的时间状语连用。瞬间动词有：
arrive, borrow, buy, close, fall, finish, go, join, kill, hit, leave, lend, die, marry, open, reach, return, start, stop, recognize....等。
(四、) 掌握好表状态的连系动词与表变化的连系动词
英语中的连系动词主要分为两大类：
a．表状态的连系动词。如：he is a good worker. 除了be 而外，还有：stand(位于),lie(位于),stay, have, consist of, belong to, exist, weigh, own....等。
b．另一类连系动词表示动作或变化，是由行为动词转化而来的。一般在这些连系动词后跟形容词作表语如：his hair grows grey. 这类连系动词还
有: turn, become, taste, smell, sound, look, feel, get...等。
(五、) 注意词义相近，用法不同的动词
a．表主观与客观的动词
I received his invitation last night, but i didn't want to accept it.
该句中，动词receive, accept 都表示
He heard that the scientist would come to our school.
He heard of the news that the scientist would come to our school.
前句中hear的表示直接听说的，而后一句中hear of 的表示间接听说的。类似用法的动词还有：know; know of, speak; speak of, talk; talk of等。
(六、) 重视多字动词的用法
所谓多字动词是指动词与某些副词、介词构成的动词词组。一般有四种形式：
a．
We never thought of such success when we first started.
类似用法的还有：
agree to, ask for, attention to, break into, call upon, deal with, laugh at, dream of, listen to, look at, operate on, talk about, rely on, refer to...
b．
We put off the sports meet.
After he grew up, he went to london to work for a company.
类似用法的还
有: bring about, bring up, call up, carry out, find out, give up, hand in, help out, look up, make out, pass on, point out, put away, put down, put away, put down, put off, put on, ring up, set up, take up, think over, turn down, use up, work out..., wake up, shut up, come about, break out, carry on, come up, fall over, get away, get back, look out, go up, go out, stay up....
在这类结构中，必须注意有的多字动词即及物又可不及物。有的甚至汉语意义也完全不相同。如：
He looked up and saw his teacher in front of him. (vi. 抬起头看)
He looked up the word in the dictionary. (vt. 查找)
类似的有break down vi.（车等）坏了 vt. 分解，分为 ;
go over vi. 走过去 vt. 复习，仔细查看等。
c．
We should do away with that sort of thing.
类似的有：give in to, catch up with, look down upon, make up for, put up with....
d．
We will take care of them.
类似的有：
catch sight of, keep an eye on, make use of, make a fool of, make fun of, make room for, make sur
e of, knock out of, have a word with, pay attention to, put an end to, set fire to, take advantage of, take hold of, take note of, take notice of, take part in, take pride in, take possession of, play a trick on, play a part in....
说明：同一动词有时可用作及物动词，有时可用作不及物动词。例如：
She can dance and sing.
她能唱歌又能跳舞。（sing在此用作不及物动词。）
She can sing many English songs.
她能唱好多首英文歌曲。（sing用作及物动词。）
4） 根据是否受主语的人称和数的限制，可分两类，分别是：限定动词（Finite Verb）、非限定动词（Non-finite Verb）例如：
She sings very well.
她唱得很好。（sing受主语she的限制，故用第三人称单数形式sings。）
She wants to learn English well.
她想学好英语。（to learn不受主语she的限制，没有词形变化，是非限定动词。
说明：英语中共有三种非限定动词，分别是：动词不定式（Infinitive）、动名词（Gerund）、分词（Participle）。
5） 根据动词的组成形式，可分为三类，分别是：单字词（One-Word Verb）、短语动词（Phrasal Verb）、动词短语（Verbal Phrase）例如：
The English language contains many phrasal verbs and verbal phrases.
英语里有许多短语动词和动词短语。（contains是单字动词。）
Students should learn to look up new words in dictionaries.
学生们学会查字典。（look up是短语动词。）
The young ought to take care of the old.
年轻人应照料老人。（take care of是动词短语。）
6）动词有五种形态，分别是：原形（Original Form）、第三人称单数形式
（Singular From in Third Personal）、过去式（Past Form）、过去分词（Past Participle）、现在分词（Present Participle）。
7) 及物动词不需要介词
在英语错误中，
①a. We study every day.
b. Do you study English every day.
②a. Please write clearly next time.
b. Can you write your composition now?
如果本质上就是不及物动词，就不会有宾语；若要宾语，就要借介词之助，一起连用才行，如③b和④b;③a和④a是错的；
*③a. The children are listening the music.
b. The children are listening to the music.
*④a. She is laughing the crippled man.
b. She is laughing at the crippled man.
反之，及物动词不必靠介词，就可以带宾语，如上述的①b和②b ，又如⑤和 ⑥： ⑤ John is giving a book to me.
⑥ Who will answer this question?
如果无意中把介词加上，就错了，如：
*⑦ Who will answer to this question?
下列这句从房地产广告中看到的句子，也犯了同样的错：
许多人习惯上喜欢把介词加到及物动词后面，然后才带出宾语。最常见的是
⑧ Singaporeans seem to have emphasized on material gains.
⑨ In our education system, we stress upon examination results.
⑩ World leaders spent a lot of time discussing about worsening economic problems.
显然的，这三句里的介词
下面是些类似的错误：
● The young must obey to their elders.
● Do not approach to that odd-looking man.
● The audience attacked on the rude speaker.
● Nothing can escape from his parents' eyes.
● Do you hope to serve for your nation?
● When did Susan marry with Paul?
介词
为什么会有这些错误呢？主因是分不清楚及物动词和不及物动词的性质。其次，就是对同一个动词及其名词的句型有些混淆。解决之道有二。第一，要把
He reached Londan yesterday./ He arrived in London yesterday.
第二，把及物动词转化为名词，然后加上适当的介词和宾语，如： Don't approach such a person.
Is oral practice a good approach to language teaching?
*******
1 系动词
系动词亦称联系动词（Link Verb），作为系动词，它本身有词义，但不能单独用作谓语，后边必须跟表语（亦称补语），构成系表结构说明主语的状况、性质、特征等情况。 说明：
有些系动词又是实义动词，该动词表达实义时，有词义，可单独作谓语，例如： He fell ill yesterday.
他昨天病了。（fell是系动词，后跟补足语，说明主语情况。）
He fell off the ladder.
他从梯子上摔下来。fell是实义动词，单独作谓语。
1）状态系动词
用来表示主语状态，只有be一词，例如：
He is a teacher. 他是一名教师。（is与补足语一起说明主语的身份。）
2）持续系动词
用来表示主语继续或保持一种状况或态度，主要有keep, rest, remain, stay, lie, stand, 例如： He always kept silent at meeting. 他开会时总保持沉默。
This matter rests a mystery. 此事仍是一个谜。
3）表像系动词
用来表示
He looks tired. 他看起来很累。
He seems (to be) very sad. 他看起来很伤心。
4）感官系动词
感官系动词主要有feel, smell, sound, taste, 例如：
This kind of cloth feels very soft.
这种布手感很软。
This flower smells very sweet.
这朵花闻起来很香。
5）变化系动词
这些系动词表示主语变成什么样，变化系动词主要有
become, grow, turn, fall, get, go, come, run.
例如：
He became mad after that. 自那之后，他疯了。
She grew rich within a short time. 她没多长时间就富了。
6）终止系动词
表示主语已终止动作，主要有prove, trun out, 表达
The rumor proved false. 这谣言证实有假。
The search proved difficult. 搜查证实很难。
His plan turned out a success. 他的计划终于成功了。（turn out表终止性结果） *** 怎样区分半连系动词
连系动词多有自己的意思，但不能独立作谓语，必须与表语（名词、形容词，或与之相当的词类、短语、从句）一起构成合成谓语。最常用的连系动词为be（是）动词，即完全连系动词，另外还有look，turn，feel，get，become，sound，smell，stand，go，remain等半连系动词。无论是完全连系动词还是半连系动词、后面都有表语。由于半连系动词是由实意动词变来的，那如何分辨该动词为实意动词还是半连系动词呢？这对初学英语的中学生来说会感到有点困难，我在教学中尝试用比较法和替换法，使学生较能接受。
1．比较法
比较下列各组句子
(1) A． Please look at the blackboard．请看黑板。
B． He looked a perfect fool．他看上去是个十足的傻瓜。
(2) A．Turn to Page 16．翻到 16页。
B．He turned traitor to his country．他背叛了祖国。
A．He felt it his duty to help others．
他认为帮助别人是自己的责任。
B．I felt very hungry after a long walk．
走了一段长路，我感到很饿。
A.Get me some ink．给我一些墨水。
B．Our motherland is getting stronger and stronger．
我们国家变得越来越强大了。
A．Such words do not become a scholar．
那样的话不像出自学者之口。
B．Some of the land became covered with water．
一些田地覆盖着水。
A．This black key on the piano won't sound．
这钢琴上的黑键按下去不响。
B． The story sounds interesting．
这故事听起来很有趣。
A.I am sure I smell gas．我肯定闻到了煤气味。
B．The flowers smell sweet．花朵散发芳香。
．He was too weak to stand．他太虚弱，不能站立。
B．Holding the note in his hand，he stood there dumbfounded．他拿着钞票，站在那里，目瞪口呆。
A．He goes to school early every morning.
他每天早上很早上学。
B． They went mad．他们发狂了。
A． I remained 3 weeks in Paris．
我在巴黎逗留了三周。
B．He never remained satisfied with his success．
他从不满足于自己的成绩。
2．替换法
分析以上10组句子我们不难看出B组斜体动词均为连系动词，因为如果我们把动词 be（是）的适当形式替代斜体动词，句子能够成立，后面的成分即是表语。
（1）He was a perfect fool．
（2）He was a traitor to his country.
（3）I was very hungry after a long walk．
（4）Our motherland is stronger and stronger．
（5）Some of the land was covered with water．
（6）The story is interesting．
（7）The flowers are sweet．
（8）Holding the note in his hand，he was there dumbfounded．
（9）They were mad．
（10）He was never satisfied with his success．
反之，如果把 be（是）动词的适当形式替代 A组斜体动词，句子则不能成立，无法解释，A组动词均不为连系动词：
*（l）Please be at the blackboard．
*（2）Be to Pagel6．
*（3）He was if his duty to help others．
*（4）Be me some ink．
*（5）Such words are not a scholar．
*（6）The black key on the piano won't be．
*（7）I am sure I am gas．
*（8）He was too weak to be．
*（9）He is to school early every morning．
*（10）I was 3 weeks in Paris．
另外半连系动词是由实意动词变来的。所以把含有半连系动词的句子改为疑问句时，一定要用助动词。
例如：1． Do they look tired？
2．Has she got ready？
3．Did it become much more expensive to travel abroad？
不论完全连系动词或半连系动词，它们都有时态的变化，但有些半连系动词从形式上看像是现在进行时，实际上并不表示动作正在进行。而是表示
（1）It's getting warmer and warmer．
天渐渐暖和起来了。
（2）Are you feeling better now？
你现在好点了吗？
因为半连系动词本属于不及物动词，所以没有被动语态。
如不能说：* Good medicine is tasted bitter to the mouth．应说：
Good medicine tastes bitter to the mouth．良药苦口。
半连系动词的教学还是个较困难的问题，但在初学阶段用先比较，再替换的方法，还是能使学生掌握哪些实意动词可充当半连系动词，收到事半功倍的效果。
***
2 什么是助动词
1）协助主要动词构成谓语动词词组的词叫助动词（Auxiliary Verb）。被协助的动词称作主要动词（Main Verb）。
助动词自身没有词义，不可单独使用，例如：
He doesn't like English. 他不喜欢英语。
（doesn't是助动词，无词义；like是主要动词，有词义)
2） 助动词协助主要动词完成以下功用，可以用来：
a. 表示时态，例如：
He is singing. 他在唱歌。
He has got married. 他已结婚。
b. 表示语态，例如：
He was sent to England. 他被派往英国。
c. 构成疑问句，例如：
Do you like college life? 你喜欢大学生活吗？
Did you study English before you came here? 你来这儿之前学过英语吗？
d. 与否定副词not合用，构成否定句，例如：
I don't like him. 我不喜欢他。
e. 加强语气，例如：
Do come to the party tomorrow evening. 明天晚上一定来参加晚会。
He did know that. 他的确知道那件事。
3） 最常用的助动词有：be, have, do, shall, will, should, would
3 助动词be的用法
1） be +现在分词，构成进行时态，例如：
They are having a meeting. 他们正在开会。
English is becoming more and more important. 英语现在越来越重要。
2) be + 过去分词，构成被动语态，例如：
The window was broken by Tom.. 窗户是汤姆打碎的。
English is taught throughout the world. 世界各地都教英语。
3） be + 动词不定式，可表示下列内容：
a. 表示最近、未来的计划或安排，例如：
He is to go to New York next week.. 他下周要去纽约。
We are to teach the freshpersons. 我们要教新生。
说明： 这种用法也可以说成是一种将来时态表达法。
b. 表示命令，例如：
You are to explain this. 对此你要做出解释。
He is to come to the office this afternoon. 要他今天下午来办公室。
c. 征求意见，例如：
How am I to answer him? 我该怎样答复他？
Who is to go there? 谁该去那儿呢？
d. 表示相约、商定，例如：
We are to meet at the school gate at seven tomorrow morning. 我们明天早晨7点在校门口集合。
4 助动词have的用法
1）have +过去分词，构成完成时态，例如：
He has left for London. 他已去了伦敦。
By the end of last month, they had finished half of their work.
上月未为止，他们已经完成工作的一半。
2）have + been +现在分词，构成完成进行时，例如：
I have been studying English for ten years.
我一直在学英语，已达十年之久。
3）have+been +过去分词，构成完成式被动语态，例如：
English has been taught in China for many years.
中国教英语已经多年。
5 助动词do 的用法
1） 构成一般疑问句，例如：
Do you want to pass the CET? 你想通过大学英语测试吗？
Did you study German? 你们学过德语吗？
2） do + not 构成否定句，例如：
I do not want to be criticized. 我不想挨批评。
He doesn't like to study. 他不想学习。
In the past, many students did not know the importance of English. 过去，好多学生不知道英
语的重要性。
3) 构成否定祈使句，例如：
Don't go there. 不要去那里。
Don't be so absent-minded. 不要这么心不在焉。
说明： 构成否定祈使句只用do，不用did和does。
4） 放在动词原形前，加强该动词的语气，例如：
Do come to my birthday party. 一定来参加我的生日宴会。
I did go there. 我确实去那儿了。
I do miss you. 我确实想你。
5） 用于倒装句，例如：
Never did I hear of such a thing. 我从未听说过这样的事情。
Only when we begin our college life do we realize the importance of English.
只有在开始大学生活时我们才认识到英语的重要性。
说明： 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。
6） 用作代动词，例如：
---- Do you like Beijing? --你喜欢北京吗？
---- Yes, I do. --是的，喜欢。（do用作代动词，代替like Beijing.）
He knows how to drive a car, doesn't he?
他知道如何开车，对吧？
6 助动词shall和will的用法
shall和will作为助动词可以与动词原形一起构成一般将来时，例如：
I shall study harder at English. 我将更加努力地学习英语。
He will go to Shanghai. 他要去上海。
说明：
在过去的语法中，语法学家说shall用于第一人称，will 只用于第二、第三人称。现在，尤其是在口语中，will常用于第一人称，但shall只用于第一人称，如用于第二、第三人称，就失去助动词的意义，已变为情态动词，试比较:
He shall come. 他必须来。（shall有命令的意味。）
He will come. 他要来。（will只与动词原形构成一般将来时。）
7 助动词should,would的用法
1）should无词义，只是shall的过去形式，与动词原形构成过去将来时，只用于第一人称，例如：
I telephoned him yesterday to ask what I should do next week.
我昨天给他打电话，问他我下周干什么。
比较：
2） would也无词义，是will的过去形式，与动词原形构成过去将来时，用于第二、第三人称，例如：
He said he would come. 他说他要来。
比较：
变成间接引语，就成了：
He said he would come.
原来的will变成would，go变成了come.。
8 短语动词
动词加小品构成的起动词作用的短语叫短语动词（Phrasal Verb）。例如：
Turn off the radio. 把收音机关上。（turn off是短语动词）
短语动词的构成基本有下列几种：
1） 动词+副词，如：black out；
2） 动词+介词，如：look into；
3） 动词+副词+介词，如：look forward to。构成短语动词的副词和介词都统称为小品词（Particle）。
9 非谓语动词
在句子中充当除谓语以外的句子成分的动词形式叫做非谓语动词。非谓语动词分为三种形式:不定式，动名词，和分词(分词包括现在分词和过去分词)。
1）不定式
时态语态 主动 被动
一般式 to do to be done
完成式 to have done to have been done
2）动名词
时态语态 主动 被动
一般式 doing being done
完成式 having done having been done
3）分词
时态语态 主动 被动
一般式 doing being done
完成式 having done having been done
否定形式： not +不定式， not + 动名词， not + 现在分词
动名词
1 动名词作主语、宾语和表语
1）作主语
Fighting broke out between the South and the North.
南方与北方开战了。
2）作宾语
a. 动词后加动名词doing作宾语 V. + doing sth
admit 承认 appreciate 感激,赞赏 avoid 避免
complete 完成 consider 认为 delay 耽误 deny 否认 detest 讨
厌 endure 忍受 enjoy 喜欢 escape 逃脱 prevent阻止 fancy 想象 finish 完成 imagine 想象 mind 介意 miss 想
念 postpone 推迟 practise 训练 recall 回
忆 resent 讨厌 resist 抵抗 resume 继续 risk 冒险
suggest 建议 face 面对 include 包括 stand 忍受
understand 理解 forgive 宽恕 keep 继续
举例：
(1) Would you mind turning down your radio a little, please?
(2) The squirrel was lucky that it just missed being caught.
b. 词组后接doing
admit to prefer…to be used to lead to devote oneself to object to stick to busy look forward to(to为介词）
no good, no use, It's worth…, as well as,
can't help, It's no use /good be tired of
be fond of be capable of be afraid of
be proud of think of / about hold off
put off keep on insist on count on / upon
set about be successful in good at take up
give up burst out prevent … from…
3）作表语
Her job is washing，cleaning and taking care of the children.
2 worth 的用法
worth，worthy，worth-while都为adj. 意为
1. worth： be worth + n. 当名词为金钱时，表示
be worth doing sth.
The question is not worth discussing again and again.
2. worthy：be worthy of +n. 当名词为抽象名词时表示
be worthy to be done
The question is not worthy to be discussed againand again.
3. worth-while： be worth-while to do sth
worth while： It is worth while doing sth
It is worth while sb to do sth.
典型例题
It is not ____ to discuss the question again and again.
A.worth B.worthy C.worth-while D.worth while
答案C. 由worth的用法可知，此句只适合词组be worth-while to do sth.。因此选C。
动词不定式
1 不定式作宾语
1) 动词+ 不定式
afford aim appear agree arrange ask be decide bother care choose come dare demand desire determine expect elect endeavor hope fail happen help hesitate learn long mean manage offer ought plan prepare pretend promise refuse
seem tend wait wish undertake
举例：
The driver failed to see the other car in time.
司机没能及时看见另一辆车。
I happen to know the answer to your question.
我碰巧知道你那道问题的答案。
2）动词+不定式 ； 动词+宾语+不定式
ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish… I like to keep everything tidy. 我喜欢每件东西都保持整洁。
I like you to keep everything tidy. 我喜欢你年使每件东西都保持整洁。
I want to speak to Tom. 我想和汤姆谈话。
I want you to speak to Tom. 我想让你和汤姆谈话。
3） 动词+疑问词+ to
decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell
Please show us how to do that. 请演示给我们如何去做。
There are so many kinds of tape-recorders on sale that I can't make up my mind which to buy.有这么多的录音机，我都拿不定主意买哪一种。
注意:疑问词带不定式在句中作成分时，谓语动词用单数。
The question is how to put it into practice.
问题是怎样把它付诸实施。
2 不定式作补语
1) 动词+宾语+不定式(to do)
advise allow appoint believe cause challenge command compel consider declare drive enable encourage find forbid force guess hire imagine impel induce inform instruct
invite judge know like order permit
persuade remind report request require select
send state suppose tell think train trust understand
urge warn
例句：
a. Father will not allow us to play on the street.
父亲不让我们在街上玩耍。
b. We believe him to be guilty.
我们相信他是有罪的。
Find 的特殊用法：
Find 后可用分词做宾补，或先加形式宾语，再加形容词，最后加带to 的动词不定式。find后也可带一个从句。此类动词还有get，have。
I found him lying on the ground.
I found it important to learn.
I found that to learn English is important.
典型例题:
The next morning she found the man ___ in bed，dead.
A. lying B. lie C. lay D. laying
答案：A.find的宾语后面，用分词或分词短语，起宾语补足语作用。现在分词表达主动，也表达正在进行，过去分词表达被动。
2) to + be 的不定式结构，作补语的动词。
Acknowledge, believe, consider, think, declare(声称), discover, fancy(设想),
feel find, guess, judge, imagine, know, prove, see(理解), show, suppose, take(以为), understand
We consider Tom to be one of the best students in our class.
我们认为汤姆是班上最好的学生之一。
典型例题
Charles Babbage is generally considered ___ the first computer.
A. to invent B. inventing C. to have invented D. having invented
答案：A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实，不定式后用原形即可。而C为现在完成时，发明为点动词一般不用完成时，且此处也不强调对现在的影响，因此不选C。
3) to be +形容词
Seem, appear, be said, be supposed, be believed, be thought,
be known, be reported, hope, wish, desire,
want, plan, expect, mean…
The book is believed to be uninteresting.
人们认为这本书没什么意思。
4) there be+不定式
believe, expect, intend, like, love, mean, prefer, want, wish, undrstand
We didn't expect there to be so many people there.我们没料到会有那么多人在哪里。
注意 ： 有些动词需用as 短语做补语，如regard, think believe, take, consider.
We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。
Mary took him as her father . 玛丽把他当作自己的父亲。
3 不定式主语
1） It's easy (for me) to do that.我做这事太容易了
easy, difficult, hard, important, possible, impossible,
comfortable, necessary, better;
the first, the next, the last, the best, too much, too little, not enough It's so nice to hear your voice.
听到你的声音真高兴。
It's necessary for you to lock the car when you do not use it.
当你不用车的时候，锁车是有必要的。
2) It's very kind of you to help us. 他帮助我们，他真好。
Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, selfish(自私的)
例句:
It was silly of us to believe him. 我们真愚蠢，竟然相信了他。
It seemed selfish of him not to give them anything. 他不给他们任何东西，这显得太自私了。
注意：1) 其他系动词如，look，appear等也可用于此句型
2) 不定式作为句子成分时，动词用单数形式。
3) 当不定式作主语的句子中又有一个不定式作表语时，不能用It is… to…的句型 (对)To see is to believe. 百闻不如一见。
(错)It is to believe to see.
4 It's for sb.和 It's of sb.
1）for sb. 常用于表示事物的特征特点，表示客观形式的形容词，如
easy, hard, difficult, interesting, impossible等：
It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2）of sb的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如good, kind, nice, clever, foolish, right。
It's very nice of you to help me. 你来帮助我，你真是太好了。
for 与of 的辨别方法：
用介词后面的代词作主语，用介词前边的形容词作表语，造个句子。如果道理上通顺用of，不通则用for。如：
You are nice. (通顺，所以应用of)。
He is hard. (人是困难的，不通，因此应用for。)
5 不定式作表语
不定式可放在be动词后面，形成表语。例如： My work is to clean the room every day. His dream is to be a doctor.
6 不定式作定语
不定式做定语通常要放在被修饰的词后。例如： I have a lot of work to do.
So he made some candles to give light.
英语中部分否定的几种表示方法
英语中的部分否定（即不完全否定）有如下一些表示方法：
一、 all 的否定式：not all…（或：all…not）表示
Not all bamboo grows tall. 并非所有的竹子都会长得很高。
二、 both 的否定式：not…both (或：both… not)
Both (the) windows are not open. 两扇窗子并不都开着。
三、 every…的否定式：
Not every book is educative. (或：Every book is not educative.) 不是每本书都有教育意义的。 Not everyone likes this book. 并非人人都喜欢这本书。
This flower is not seen everywhere. 这花并不是随处可见的。
四、 always的否定式：
He is not always so sad. 他并不是一直都这样悲伤。
五、 entirely, altogether, completely 和quite 的否定式：
The businessman is never to be entirely trusted. 不可以完全信任商人。
He felt not altogether satisfied. 他并不完全满意。
I don't agree completely. 我并不完全同意。
What he did was not quite proper. 他做的不十分妥当。
六、 all the time 的否定式：
A foolish man doesn't make a mistake all the time. 笨人未必老是犯错误。
七、 not…and…的否定式，被否定的往往是and后面的那一部分。 例如：
He did not speak clearly and correctly. 他讲得清楚但不正确。
This film is not interesting and instructive. 这部电影有趣但无教育意义。
She cannot sing and dance. 她会唱歌但不会跳舞。
如果将and 换成or，not 对其后面的两部分就全盘否定了。
He did not speak clearly or correctly. 他讲的既不清楚也不正确。
如要对上述的all, both, every, always, 以及entirely, altogether, completely, quite 和 all the time 等词作完全否定，那就分别要用与之相对应的全否定词，如no, none, neither, no one, never, not (never)… at all 等。例如：
All of them can do it.--- None of them can do it.
Both are good.---Neither is good.
Everybody likes it. ---Nobody likes it.
He is always late. --- He is never late.
We don't trust them entirely. --- We never trust them at all.
He was here all the time. --- He was never here.
动词
1） 表示动作中状态的词叫做动词。
2） 根据其在句中的功能，动词可分为四类，分别是：实义动词（Notional Verb）、系动词（Link Verb）、助动词（Auxiliary Verb）、情态动词（Modal Verb）。
说明：有些情况下，有些动词是兼类词，例如：
We are having a meeting. 我们正在开会。 （having是实义动词。）
He has gone to New York. 他已去纽约。 （has是助动词。）
3） 动词根据其后是否带有宾语，可分为两类，分别是：及物动词（Transitive Verb）、不及物动词（Intransitive Verb），缩写形式分别为vt. 和vi.。
英语动词是句子的核心。它既决定着句子意思的表达同时又决定着句子的语法结构。难怪有人说，英语是动词和介词的语言。可见研究动词的用法在英语学习中是十分重要的。
(一、) 分清及物不及物:
分清动词的及物不及物是在英语学习中必须解决的首要问题。动词及物与不及物通常有以下几种情况：
a．主要用作及物动词。及物动词后面必须跟宾语。可以用于：
He reached paris the day before yesterday.
Please hand me the book over there.
They asked me to go fishing with them.
类似的还有：
buy, catch, invent, found, like, observe, offer, prevent, promise, raise, find, forget, receive, regard, see, say, seat, supply, select, suppose, show, make, take, tell....
b．主要用作不及物的动词。不及物动词后面不跟宾语。只能用与：
类似的还有：
agree, go, work, listen, look, come, die, belong, fall, exist, rise, arrive, sit, sail, hurry, fail, succeed.... c．既可以用作及物又可以用作不及物的动词，其意义不变。如begin 都是作
start, answer, sing, close, consider, insist, read, learn, prepare, pay, hurt, improve....
d．既可以用作及物又可以用作不及物的动词，其意义完全不同。
这类动词作不及物动词是一个意义；而作及物动词时却是另一个意义。如lift作不及物动词时是指烟雾的
He lifted his glass and drank.
类似的还有：beat vi.跳动 vt. 敲、打; grow vi.生长 vt. 种植
play vi.玩耍 vt. 打（牌、球）,演奏 smell vi.发出（气味） vt. 嗅
ring vi.（电话、铃）响vt.打电话 speak vi.讲话 vt. 说（语
言） hang vi. 悬挂 vt. 绞死 operate vi.动手术 vt. 操作
(二、) 辨别表动作与表结果的动词
表动作的动词强调动作的发生，不涉及该动词的结果。如：
He looked at the picture. He saw a picture .
前一句中的动词强调
(三、) 记住瞬间动词
英语中不少动词所表示的动作在瞬间就可以完成．如：
He arrived in paris yesterday.
而另一些动词所表示的动作则可以延续．如：
They worked until 12 o'clock last night.
特别是在现在完成时态的句子中，瞬间动词的完成时态不能跟表示一段时间的时间状语连用。瞬间动词有：
arrive, borrow, buy, close, fall, finish, go, join, kill, hit, leave, lend, die, marry, open, reach, return, start, stop, recognize....等。
(四、) 掌握好表状态的连系动词与表变化的连系动词
英语中的连系动词主要分为两大类：
a．表状态的连系动词。如：he is a good worker. 除了be 而外，还有：stand(位于),lie(位于),stay, have, consist of, belong to, exist, weigh, own....等。
b．另一类连系动词表示动作或变化，是由行为动词转化而来的。一般在这些连系动词后跟形容词作表语如：his hair grows grey. 这类连系动词还
有: turn, become, taste, smell, sound, look, feel, get...等。
(五、) 注意词义相近，用法不同的动词
a．表主观与客观的动词
I received his invitation last night, but i didn't want to accept it.
该句中，动词receive, accept 都表示
He heard that the scientist would come to our school.
He heard of the news that the scientist would come to our school.
前句中hear的表示直接听说的，而后一句中hear of 的表示间接听说的。类似用法的动词还有：know; know of, speak; speak of, talk; talk of等。
(六、) 重视多字动词的用法
所谓多字动词是指动词与某些副词、介词构成的动词词组。一般有四种形式：
a．
We never thought of such success when we first started.
类似用法的还有：
agree to, ask for, attention to, break into, call upon, deal with, laugh at, dream of, listen to, look at, operate on, talk about, rely on, refer to...
b．
We put off the sports meet.
After he grew up, he went to london to work for a company.
类似用法的还
有: bring about, bring up, call up, carry out, find out, give up, hand in, help out, look up, make out, pass on, point out, put away, put down, put away, put down, put off, put on, ring up, set up, take up, think over, turn down, use up, work out..., wake up, shut up, come about, break out, carry on, come up, fall over, get away, get back, look out, go up, go out, stay up....
在这类结构中，必须注意有的多字动词即及物又可不及物。有的甚至汉语意义也完全不相同。如：
He looked up and saw his teacher in front of him. (vi. 抬起头看)
He looked up the word in the dictionary. (vt. 查找)
类似的有break down vi.（车等）坏了 vt. 分解，分为 ;
go over vi. 走过去 vt. 复习，仔细查看等。
c．
We should do away with that sort of thing.
类似的有：give in to, catch up with, look down upon, make up for, put up with....
d．
We will take care of them.
类似的有：
catch sight of, keep an eye on, make use of, make a fool of, make fun of, make room for, make sur
e of, knock out of, have a word with, pay attention to, put an end to, set fire to, take advantage of, take hold of, take note of, take notice of, take part in, take pride in, take possession of, play a trick on, play a part in....
说明：同一动词有时可用作及物动词，有时可用作不及物动词。例如：
She can dance and sing.
她能唱歌又能跳舞。（sing在此用作不及物动词。）
She can sing many English songs.
她能唱好多首英文歌曲。（sing用作及物动词。）
4） 根据是否受主语的人称和数的限制，可分两类，分别是：限定动词（Finite Verb）、非限定动词（Non-finite Verb）例如：
She sings very well.
她唱得很好。（sing受主语she的限制，故用第三人称单数形式sings。）
She wants to learn English well.
她想学好英语。（to learn不受主语she的限制，没有词形变化，是非限定动词。
说明：英语中共有三种非限定动词，分别是：动词不定式（Infinitive）、动名词（Gerund）、分词（Participle）。
5） 根据动词的组成形式，可分为三类，分别是：单字词（One-Word Verb）、短语动词（Phrasal Verb）、动词短语（Verbal Phrase）例如：
The English language contains many phrasal verbs and verbal phrases.
英语里有许多短语动词和动词短语。（contains是单字动词。）
Students should learn to look up new words in dictionaries.
学生们学会查字典。（look up是短语动词。）
The young ought to take care of the old.
年轻人应照料老人。（take care of是动词短语。）
6）动词有五种形态，分别是：原形（Original Form）、第三人称单数形式
（Singular From in Third Personal）、过去式（Past Form）、过去分词（Past Participle）、现在分词（Present Participle）。
7) 及物动词不需要介词
在英语错误中，
①a. We study every day.
b. Do you study English every day.
②a. Please write clearly next time.
b. Can you write your composition now?
如果本质上就是不及物动词，就不会有宾语；若要宾语，就要借介词之助，一起连用才行，如③b和④b;③a和④a是错的；
*③a. The children are listening the music.
b. The children are listening to the music.
*④a. She is laughing the crippled man.
b. She is laughing at the crippled man.
反之，及物动词不必靠介词，就可以带宾语，如上述的①b和②b ，又如⑤和 ⑥： ⑤ John is giving a book to me.
⑥ Who will answer this question?
如果无意中把介词加上，就错了，如：
*⑦ Who will answer to this question?
下列这句从房地产广告中看到的句子，也犯了同样的错：
许多人习惯上喜欢把介词加到及物动词后面，然后才带出宾语。最常见的是
⑧ Singaporeans seem to have emphasized on material gains.
⑨ In our education system, we stress upon examination results.
⑩ World leaders spent a lot of time discussing about worsening economic problems.
显然的，这三句里的介词
下面是些类似的错误：
● The young must obey to their elders.
● Do not approach to that odd-looking man.
● The audience attacked on the rude speaker.
● Nothing can escape from his parents' eyes.
● Do you hope to serve for your nation?
● When did Susan marry with Paul?
介词
为什么会有这些错误呢？主因是分不清楚及物动词和不及物动词的性质。其次，就是对同一个动词及其名词的句型有些混淆。解决之道有二。第一，要把
He reached Londan yesterday./ He arrived in London yesterday.
第二，把及物动词转化为名词，然后加上适当的介词和宾语，如： Don't approach such a person.
Is oral practice a good approach to language teaching?
*******
1 系动词
系动词亦称联系动词（Link Verb），作为系动词，它本身有词义，但不能单独用作谓语，后边必须跟表语（亦称补语），构成系表结构说明主语的状况、性质、特征等情况。 说明：
有些系动词又是实义动词，该动词表达实义时，有词义，可单独作谓语，例如： He fell ill yesterday.
他昨天病了。（fell是系动词，后跟补足语，说明主语情况。）
He fell off the ladder.
他从梯子上摔下来。fell是实义动词，单独作谓语。
1）状态系动词
用来表示主语状态，只有be一词，例如：
He is a teacher. 他是一名教师。（is与补足语一起说明主语的身份。）
2）持续系动词
用来表示主语继续或保持一种状况或态度，主要有keep, rest, remain, stay, lie, stand, 例如： He always kept silent at meeting. 他开会时总保持沉默。
This matter rests a mystery. 此事仍是一个谜。
3）表像系动词
用来表示
He looks tired. 他看起来很累。
He seems (to be) very sad. 他看起来很伤心。
4）感官系动词
感官系动词主要有feel, smell, sound, taste, 例如：
This kind of cloth feels very soft.
这种布手感很软。
This flower smells very sweet.
这朵花闻起来很香。
5）变化系动词
这些系动词表示主语变成什么样，变化系动词主要有
become, grow, turn, fall, get, go, come, run.
例如：
He became mad after that. 自那之后，他疯了。
She grew rich within a short time. 她没多长时间就富了。
6）终止系动词
表示主语已终止动作，主要有prove, trun out, 表达
The rumor proved false. 这谣言证实有假。
The search proved difficult. 搜查证实很难。
His plan turned out a success. 他的计划终于成功了。（turn out表终止性结果） *** 怎样区分半连系动词
连系动词多有自己的意思，但不能独立作谓语，必须与表语（名词、形容词，或与之相当的词类、短语、从句）一起构成合成谓语。最常用的连系动词为be（是）动词，即完全连系动词，另外还有look，turn，feel，get，become，sound，smell，stand，go，remain等半连系动词。无论是完全连系动词还是半连系动词、后面都有表语。由于半连系动词是由实意动词变来的，那如何分辨该动词为实意动词还是半连系动词呢？这对初学英语的中学生来说会感到有点困难，我在教学中尝试用比较法和替换法，使学生较能接受。
1．比较法
比较下列各组句子
(1) A． Please look at the blackboard．请看黑板。
B． He looked a perfect fool．他看上去是个十足的傻瓜。
(2) A．Turn to Page 16．翻到 16页。
B．He turned traitor to his country．他背叛了祖国。
A．He felt it his duty to help others．
他认为帮助别人是自己的责任。
B．I felt very hungry after a long walk．
走了一段长路，我感到很饿。
A.Get me some ink．给我一些墨水。
B．Our motherland is getting stronger and stronger．
我们国家变得越来越强大了。
A．Such words do not become a scholar．
那样的话不像出自学者之口。
B．Some of the land became covered with water．
一些田地覆盖着水。
A．This black key on the piano won't sound．
这钢琴上的黑键按下去不响。
B． The story sounds interesting．
这故事听起来很有趣。
A.I am sure I smell gas．我肯定闻到了煤气味。
B．The flowers smell sweet．花朵散发芳香。
．He was too weak to stand．他太虚弱，不能站立。
B．Holding the note in his hand，he stood there dumbfounded．他拿着钞票，站在那里，目瞪口呆。
A．He goes to school early every morning.
他每天早上很早上学。
B． They went mad．他们发狂了。
A． I remained 3 weeks in Paris．
我在巴黎逗留了三周。
B．He never remained satisfied with his success．
他从不满足于自己的成绩。
2．替换法
分析以上10组句子我们不难看出B组斜体动词均为连系动词，因为如果我们把动词 be（是）的适当形式替代斜体动词，句子能够成立，后面的成分即是表语。
（1）He was a perfect fool．
（2）He was a traitor to his country.
（3）I was very hungry after a long walk．
（4）Our motherland is stronger and stronger．
（5）Some of the land was covered with water．
（6）The story is interesting．
（7）The flowers are sweet．
（8）Holding the note in his hand，he was there dumbfounded．
（9）They were mad．
（10）He was never satisfied with his success．
反之，如果把 be（是）动词的适当形式替代 A组斜体动词，句子则不能成立，无法解释，A组动词均不为连系动词：
*（l）Please be at the blackboard．
*（2）Be to Pagel6．
*（3）He was if his duty to help others．
*（4）Be me some ink．
*（5）Such words are not a scholar．
*（6）The black key on the piano won't be．
*（7）I am sure I am gas．
*（8）He was too weak to be．
*（9）He is to school early every morning．
*（10）I was 3 weeks in Paris．
另外半连系动词是由实意动词变来的。所以把含有半连系动词的句子改为疑问句时，一定要用助动词。
例如：1． Do they look tired？
2．Has she got ready？
3．Did it become much more expensive to travel abroad？
不论完全连系动词或半连系动词，它们都有时态的变化，但有些半连系动词从形式上看像是现在进行时，实际上并不表示动作正在进行。而是表示
（1）It's getting warmer and warmer．
天渐渐暖和起来了。
（2）Are you feeling better now？
你现在好点了吗？
因为半连系动词本属于不及物动词，所以没有被动语态。
如不能说：* Good medicine is tasted bitter to the mouth．应说：
Good medicine tastes bitter to the mouth．良药苦口。
半连系动词的教学还是个较困难的问题，但在初学阶段用先比较，再替换的方法，还是能使学生掌握哪些实意动词可充当半连系动词，收到事半功倍的效果。
***
2 什么是助动词
1）协助主要动词构成谓语动词词组的词叫助动词（Auxiliary Verb）。被协助的动词称作主要动词（Main Verb）。
助动词自身没有词义，不可单独使用，例如：
He doesn't like English. 他不喜欢英语。
（doesn't是助动词，无词义；like是主要动词，有词义)
2） 助动词协助主要动词完成以下功用，可以用来：
a. 表示时态，例如：
He is singing. 他在唱歌。
He has got married. 他已结婚。
b. 表示语态，例如：
He was sent to England. 他被派往英国。
c. 构成疑问句，例如：
Do you like college life? 你喜欢大学生活吗？
Did you study English before you came here? 你来这儿之前学过英语吗？
d. 与否定副词not合用，构成否定句，例如：
I don't like him. 我不喜欢他。
e. 加强语气，例如：
Do come to the party tomorrow evening. 明天晚上一定来参加晚会。
He did know that. 他的确知道那件事。
3） 最常用的助动词有：be, have, do, shall, will, should, would
3 助动词be的用法
1） be +现在分词，构成进行时态，例如：
They are having a meeting. 他们正在开会。
English is becoming more and more important. 英语现在越来越重要。
2) be + 过去分词，构成被动语态，例如：
The window was broken by Tom.. 窗户是汤姆打碎的。
English is taught throughout the world. 世界各地都教英语。
3） be + 动词不定式，可表示下列内容：
a. 表示最近、未来的计划或安排，例如：
He is to go to New York next week.. 他下周要去纽约。
We are to teach the freshpersons. 我们要教新生。
说明： 这种用法也可以说成是一种将来时态表达法。
b. 表示命令，例如：
You are to explain this. 对此你要做出解释。
He is to come to the office this afternoon. 要他今天下午来办公室。
c. 征求意见，例如：
How am I to answer him? 我该怎样答复他？
Who is to go there? 谁该去那儿呢？
d. 表示相约、商定，例如：
We are to meet at the school gate at seven tomorrow morning. 我们明天早晨7点在校门口集合。
4 助动词have的用法
1）have +过去分词，构成完成时态，例如：
He has left for London. 他已去了伦敦。
By the end of last month, they had finished half of their work.
上月未为止，他们已经完成工作的一半。
2）have + been +现在分词，构成完成进行时，例如：
I have been studying English for ten years.
我一直在学英语，已达十年之久。
3）have+been +过去分词，构成完成式被动语态，例如：
English has been taught in China for many years.
中国教英语已经多年。
5 助动词do 的用法
1） 构成一般疑问句，例如：
Do you want to pass the CET? 你想通过大学英语测试吗？
Did you study German? 你们学过德语吗？
2） do + not 构成否定句，例如：
I do not want to be criticized. 我不想挨批评。
He doesn't like to study. 他不想学习。
In the past, many students did not know the importance of English. 过去，好多学生不知道英
语的重要性。
3) 构成否定祈使句，例如：
Don't go there. 不要去那里。
Don't be so absent-minded. 不要这么心不在焉。
说明： 构成否定祈使句只用do，不用did和does。
4） 放在动词原形前，加强该动词的语气，例如：
Do come to my birthday party. 一定来参加我的生日宴会。
I did go there. 我确实去那儿了。
I do miss you. 我确实想你。
5） 用于倒装句，例如：
Never did I hear of such a thing. 我从未听说过这样的事情。
Only when we begin our college life do we realize the importance of English.
只有在开始大学生活时我们才认识到英语的重要性。
说明： 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。
6） 用作代动词，例如：
---- Do you like Beijing? --你喜欢北京吗？
---- Yes, I do. --是的，喜欢。（do用作代动词，代替like Beijing.）
He knows how to drive a car, doesn't he?
他知道如何开车，对吧？
6 助动词shall和will的用法
shall和will作为助动词可以与动词原形一起构成一般将来时，例如：
I shall study harder at English. 我将更加努力地学习英语。
He will go to Shanghai. 他要去上海。
说明：
在过去的语法中，语法学家说shall用于第一人称，will 只用于第二、第三人称。现在，尤其是在口语中，will常用于第一人称，但shall只用于第一人称，如用于第二、第三人称，就失去助动词的意义，已变为情态动词，试比较:
He shall come. 他必须来。（shall有命令的意味。）
He will come. 他要来。（will只与动词原形构成一般将来时。）
7 助动词should,would的用法
1）should无词义，只是shall的过去形式，与动词原形构成过去将来时，只用于第一人称，例如：
I telephoned him yesterday to ask what I should do next week.
我昨天给他打电话，问他我下周干什么。
比较：
2） would也无词义，是will的过去形式，与动词原形构成过去将来时，用于第二、第三人称，例如：
He said he would come. 他说他要来。
比较：
变成间接引语，就成了：
He said he would come.
原来的will变成would，go变成了come.。
8 短语动词
动词加小品构成的起动词作用的短语叫短语动词（Phrasal Verb）。例如：
Turn off the radio. 把收音机关上。（turn off是短语动词）
短语动词的构成基本有下列几种：
1） 动词+副词，如：black out；
2） 动词+介词，如：look into；
3） 动词+副词+介词，如：look forward to。构成短语动词的副词和介词都统称为小品词（Particle）。
9 非谓语动词
在句子中充当除谓语以外的句子成分的动词形式叫做非谓语动词。非谓语动词分为三种形式:不定式，动名词，和分词(分词包括现在分词和过去分词)。
1）不定式
时态语态 主动 被动
一般式 to do to be done
完成式 to have done to have been done
2）动名词
时态语态 主动 被动
一般式 doing being done
完成式 having done having been done
3）分词
时态语态 主动 被动
一般式 doing being done
完成式 having done having been done
否定形式： not +不定式， not + 动名词， not + 现在分词
动名词
1 动名词作主语、宾语和表语
1）作主语
Fighting broke out between the South and the North.
南方与北方开战了。
2）作宾语
a. 动词后加动名词doing作宾语 V. + doing sth
admit 承认 appreciate 感激,赞赏 avoid 避免
complete 完成 consider 认为 delay 耽误 deny 否认 detest 讨
厌 endure 忍受 enjoy 喜欢 escape 逃脱 prevent阻止 fancy 想象 finish 完成 imagine 想象 mind 介意 miss 想
念 postpone 推迟 practise 训练 recall 回
忆 resent 讨厌 resist 抵抗 resume 继续 risk 冒险
suggest 建议 face 面对 include 包括 stand 忍受
understand 理解 forgive 宽恕 keep 继续
举例：
(1) Would you mind turning down your radio a little, please?
(2) The squirrel was lucky that it just missed being caught.
b. 词组后接doing
admit to prefer…to be used to lead to devote oneself to object to stick to busy look forward to(to为介词）
no good, no use, It's worth…, as well as,
can't help, It's no use /good be tired of
be fond of be capable of be afraid of
be proud of think of / about hold off
put off keep on insist on count on / upon
set about be successful in good at take up
give up burst out prevent … from…
3）作表语
Her job is washing，cleaning and taking care of the children.
2 worth 的用法
worth，worthy，worth-while都为adj. 意为
1. worth： be worth + n. 当名词为金钱时，表示
be worth doing sth.
The question is not worth discussing again and again.
2. worthy：be worthy of +n. 当名词为抽象名词时表示
be worthy to be done
The question is not worthy to be discussed againand again.
3. worth-while： be worth-while to do sth
worth while： It is worth while doing sth
It is worth while sb to do sth.
典型例题
It is not ____ to discuss the question again and again.
A.worth B.worthy C.worth-while D.worth while
答案C. 由worth的用法可知，此句只适合词组be worth-while to do sth.。因此选C。
动词不定式
1 不定式作宾语
1) 动词+ 不定式
afford aim appear agree arrange ask be decide bother care choose come dare demand desire determine expect elect endeavor hope fail happen help hesitate learn long mean manage offer ought plan prepare pretend promise refuse
seem tend wait wish undertake
举例：
The driver failed to see the other car in time.
司机没能及时看见另一辆车。
I happen to know the answer to your question.
我碰巧知道你那道问题的答案。
2）动词+不定式 ； 动词+宾语+不定式
ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish… I like to keep everything tidy. 我喜欢每件东西都保持整洁。
I like you to keep everything tidy. 我喜欢你年使每件东西都保持整洁。
I want to speak to Tom. 我想和汤姆谈话。
I want you to speak to Tom. 我想让你和汤姆谈话。
3） 动词+疑问词+ to
decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell
Please show us how to do that. 请演示给我们如何去做。
There are so many kinds of tape-recorders on sale that I can't make up my mind which to buy.有这么多的录音机，我都拿不定主意买哪一种。
注意:疑问词带不定式在句中作成分时，谓语动词用单数。
The question is how to put it into practice.
问题是怎样把它付诸实施。
2 不定式作补语
1) 动词+宾语+不定式(to do)
advise allow appoint believe cause challenge command compel consider declare drive enable encourage find forbid force guess hire imagine impel induce inform instruct
invite judge know like order permit
persuade remind report request require select
send state suppose tell think train trust understand
urge warn
例句：
a. Father will not allow us to play on the street.
父亲不让我们在街上玩耍。
b. We believe him to be guilty.
我们相信他是有罪的。
Find 的特殊用法：
Find 后可用分词做宾补，或先加形式宾语，再加形容词，最后加带to 的动词不定式。find后也可带一个从句。此类动词还有get，have。
I found him lying on the ground.
I found it important to learn.
I found that to learn English is important.
典型例题:
The next morning she found the man ___ in bed，dead.
A. lying B. lie C. lay D. laying
答案：A.find的宾语后面，用分词或分词短语，起宾语补足语作用。现在分词表达主动，也表达正在进行，过去分词表达被动。
2) to + be 的不定式结构，作补语的动词。
Acknowledge, believe, consider, think, declare(声称), discover, fancy(设想),
feel find, guess, judge, imagine, know, prove, see(理解), show, suppose, take(以为), understand
We consider Tom to be one of the best students in our class.
我们认为汤姆是班上最好的学生之一。
典型例题
Charles Babbage is generally considered ___ the first computer.
A. to invent B. inventing C. to have invented D. having invented
答案：A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实，不定式后用原形即可。而C为现在完成时，发明为点动词一般不用完成时，且此处也不强调对现在的影响，因此不选C。
3) to be +形容词
Seem, appear, be said, be supposed, be believed, be thought,
be known, be reported, hope, wish, desire,
want, plan, expect, mean…
The book is believed to be uninteresting.
人们认为这本书没什么意思。
4) there be+不定式
believe, expect, intend, like, love, mean, prefer, want, wish, undrstand
We didn't expect there to be so many people there.我们没料到会有那么多人在哪里。
注意 ： 有些动词需用as 短语做补语，如regard, think believe, take, consider.
We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。
Mary took him as her father . 玛丽把他当作自己的父亲。
3 不定式主语
1） It's easy (for me) to do that.我做这事太容易了
easy, difficult, hard, important, possible, impossible,
comfortable, necessary, better;
the first, the next, the last, the best, too much, too little, not enough It's so nice to hear your voice.
听到你的声音真高兴。
It's necessary for you to lock the car when you do not use it.
当你不用车的时候，锁车是有必要的。
2) It's very kind of you to help us. 他帮助我们，他真好。
Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, selfish(自私的)
例句:
It was silly of us to believe him. 我们真愚蠢，竟然相信了他。
It seemed selfish of him not to give them anything. 他不给他们任何东西，这显得太自私了。
注意：1) 其他系动词如，look，appear等也可用于此句型
2) 不定式作为句子成分时，动词用单数形式。
3) 当不定式作主语的句子中又有一个不定式作表语时，不能用It is… to…的句型 (对)To see is to believe. 百闻不如一见。
(错)It is to believe to see.
4 It's for sb.和 It's of sb.
1）for sb. 常用于表示事物的特征特点，表示客观形式的形容词，如
easy, hard, difficult, interesting, impossible等：
It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2）of sb的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如good, kind, nice, clever, foolish, right。
It's very nice of you to help me. 你来帮助我，你真是太好了。
for 与of 的辨别方法：
用介词后面的代词作主语，用介词前边的形容词作表语，造个句子。如果道理上通顺用of，不通则用for。如：
You are nice. (通顺，所以应用of)。
He is hard. (人是困难的，不通，因此应用for。)
5 不定式作表语
不定式可放在be动词后面，形成表语。例如： My work is to clean the room every day. His dream is to be a doctor.
6 不定式作定语
不定式做定语通常要放在被修饰的词后。例如： I have a lot of work to do.
So he made some candles to give light.