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＞＞＞Why not your teacher for help?A to ask B ask C asking D ask..
Why not &&&&&&&&&your teacher for help?A& to ask&&&&&& B& ask&&&& C& asking&&&& D asks
题型：单选题难度：中档来源：不详
B试题分析:固定句型结构why not +动词原形表示为什么不做某事。表示的是一种建议。此句的含义是为什么不向老师寻求帮助呢？固定短语ask sb for help表示向某人寻求帮助的意思，故选B。点评：此句的关键是考查动词的形式，学生必须记牢why not的后面要跟动词的原形，根据语境选择相应的单词。
马上分享给同学
据魔方格专家权威分析，试题“Why not your teacher for help?A to ask B ask C asking D ask..”主要考查你对&&实义动词，实义动词的单数第三人称形式，动词短语&&等考点的理解。关于这些考点的“档案”如下：
现在没空？点击收藏，以后再看。
因为篇幅有限，只列出部分考点，详细请访问。
实义动词实义动词的单数第三人称形式动词短语
实意动词：即行为动词，表示动作的动词。实义动词与系动词是相对的，能独立用作谓语。它分为及物动词和不及物动词两种：及物动词是指后面要求有直接宾语的动词；不及物动词指后面不需要跟宾语的动词。实意动词使用方法：及物动词后面必须跟宾语意义才完整的实义动词，叫做及物动词(transitive verb)。如：I believe that the committee will consider our suggestion.我相信委员会将会考虑我们的建议。“How long can I keep the book ?”Harry asked.哈里问：“这本书我可以借多久?”Dr. Bethune set us a good example. 白求恩大夫给我们树立了好榜样。Crude oil contains many useful substances.原油含有许多有用的物质。不及物动词本身意义完整后面不须跟宾语的实义动词，叫做不及物动词(intransitive verb)。如：Birds fly.鸟会飞。It happened in June 1932.这件事发生于一九三二年六月。My watch stopped.我的表停了。She spoke at the meeting yesterday evening. 她在昨天晚上的会上发了言。兼作及物动词和不及物动词英语里有不少实义动词可以兼作及物动词和不及物动词。这样的动词又有两种不同的情况a)兼作及物动词和不及物动词时，意义不变。试比较：Shall I begin at once?我可以立刻开始吗?(begin作不及物动词)She began working as a librarian after she left school.她毕业后当图书馆管理员。(began作及物动词)When did they leave Chicago?他们是什么时候离开芝加哥的？(leave 作及物动词)They left last week. 他们是上周离开的。(left 作不及物动词)b)兼作及物动词和不及物动词时，有时意义不尽相同。如：Wash your hands before meals.饭前要洗手。Does this cloth wash well? 这布经得起洗吗?英汉实意动词用法比较：与汉语的比较，有时英语动词的及物和不及物的用法，与汉语的用法不一样，请注意下列两种情况：a)有的动词在英语里只能用作不及物动词，而汉语则可用作及物动词，如arrive到达，agree同意，listen听。英语里这些动词后面常接介词。如：We arrived at the railway station at noon.我们于中午到达火车站。(at不能省去)(比较：We reached the railway station at noon.)Everybody listened to the lecture with great interest.每个人都很有兴趣地听讲课。(to不可省去)(比较：We all heard the lecture.)Do they agree to the plan?他们同意这个计划吗?(to不可省去)b)有的动词在英语里能用作及物动词，而在汉语里则不能用作及物动词，如serve为…服务。Our children are taught to serve the people wholeheartedly.我们的儿童被教以全心全意为人民服务用于be动词之后，实义动词之前。&实意动词的用法：肯定句：主语+动词过去式+其它否定句：主语+助动词didn‘t+动词原型+其他一般过去式：Did+主语+动词原型+其他在一般现在时的肯定句中，当主语为非第三人称单数时，谓语动词用原形；当主语为第三人称单数时，谓语动词用单数第三人称形式。实义动词的一般现在时的单数第三人称形式遵从“s，es, ies”六字母规则。如下表所示：
实意动词单数第三人称变化规律：注意：不规则变化的有have—has， be—is， go—goes， do—does 一般现在时，当主语是第三人称单数时，谓语动词要用第三人称单数形式&主语是第三人称单数有以下几种情况：&
（1）&不可数名词做主语：Some&water&is&in&the&glass&
（2）&单个的可数名词做主语：
The&girl&is&Chinese.&&My&watch&is&on&the&dresser.&
（3）&He&,she&,&it&等代词单个做主语:&He&is&in&the&tree.&She&likes&her&family&very&much.&（4）&单个的人名，地名或称呼作主语：Mary&is&a&doctor.&&Uncle&Li&speaks&a&little&English.&&&Changchun&is&a&beautiful&city.&
（5）&指示代词this,&that&等作主语:&This&is&a&pear.&&That&is&an&apple&.&
（6）&Everyone,&everything&,something,&nobody,&nothing.等不定代词作主语时&Is&everyone&here&today?&&&Everything&is&ok&.&
（7）单个数字作主语时：”8”&is&a&good&number&in&China.动词单数第三人称形式的一般现在时的句子的否定句、疑问句及特殊疑问句。&&&&
否定句：在主语的后面实义动词前加doesn’t(注意实义动词应恢复原形。)&&&&&
主语（单三）+doesn’&+&动词原形+其他&
Jim&likes&football变否定：&Jim&doesn’t&like&football&&&&&&&&&&&&&
He&has&lunch&at&school.&变否定：He&doesn’t&have&lunch&at&school.&&&
一般疑问句及答语，在句子前面加助动词does.&实义动词恢复原形&&&&&
Does&+主语（单三）+&动词原形+其他&
Does&your&father&work&?&Yes,&he&does.&/No,&he&doesn’t&&&&
特殊疑问句：特殊疑问词+一般疑问句&
特殊疑问词+&does&+主语（单三）+&动词原形+其他&&&&&&&&&
Where&does&a&bird&live&?&&&&&&&&&
How&does&she&go&to&school？&动词短语：由动词和动短语成，或以动词为中心，功能同动词的短语叫动词短语,动词短语是动词的一种固定搭配形式，动词短语的搭配可分为下列四种基本类型。 动词短语搭配形式：1．动词+副词 ①作及物动词，例：&He brought up his children strictly． 　　 从以上的例句中可以看出，在“动词+副词”的词组中宾语位置有两种情况：宾语如是名词，则可置于副词后面，亦可置于动词和副词之间。而如果宾语是代词，只能置于动词后面，即动词和副词之间。 　　 ②作不及物动词，例： 　　&Something unexpected has turned up． 出现了令人意外的情况。（turn up=appear） 　　 ③既可作及物动词又可作不及物动词，例： 　　 The barrel of gunpowder blew up．（不及物）火药桶爆炸了。 　　 The soldiers blew up the bridge．（及物）士兵们把桥炸毁了。 2．动词+介词&动词与介词构成的词组在词义上相当于一个及物动词，宾语总是在介词后面，例：I don’t much care for television．我不很喜欢电视。（care for=like） 3．动词+副词+介词 在这类动词短语中，动词、副词、介词紧密结合，是动副词组和动介词组的合成体，词义上相当于一个及物动词。它兼有以上两类短语动词的特点，但宾语总是位于介词之后，例：&We must work hard to make up for lost time．我们必须努力工作来弥补失去的时间。（make up for＝compensate） 4．动词+名词 这类动词短语中的常见动词是have，take，give，make等，后面的名词通常是从动词转化而来的动作名词，并表达了短语动词的真正意义，例： 　　&Let’s have another try．让我们再试一下。（have a try=v．try） 　 5．动词+名词+介词 　　&这类动词短语只用作及物动词。名词前可加形容词说明程度，宾语总是位于介词之后，&例：Keep an eye on the baby while I am out．我不在家时请照看一下小孩子。 　　 6．be+形容词（包括过去分词作形容词）+介词 　　&这类动词短语也相当于及物动词，宾语位于介词后面，形容词是短语动词的真正词义， 例：I know he is slow at understanding，but you have to be patient with him. 我知道他理解力差，但你得对他耐心些。 动词短语与短语动词:一、短语动词(1)短语动词常常是两个词（一个动词+一个副词性小品）构成，如：wake up , get up ,turn out 等。
(2)同一个动词后面可以有不同的副词性小品词，构成不同意义的短语动词。如：He turn on the radio .Bob turned out smiling.
(3）短语动词用法普遍，尤其在非正式语言中：
我们可以说 He awoke late the following morning .但这太正式了。
我们通常说 He woke up late the following morning .
短语动词的类型
Here is a page from Mr Jones` diary :
Monday ,February 5th.
*有些短语动词不带宾语：
The car broke down .Cigarette prices are going up.
*多数主短语动词可以带宾语，宾语通常在副词性小品词的前或后：
动词+副词性小品词+宾语 动词+宾语+副词性小品词
I rang up a garage. I rang a garage up.
如果宾语较长，则通常放在副词之后：
I filled in an application form.(不说 I filled an application form in .)
如果宾语是代词，其结构通常如下：
动词+代词+副词性小品词
I put it down.(不说 I put down it .)
*有些短语动词是由三个词构成的（动词+副词性小品词+介词），这样，宾语就只能放在介词后面：
I don`t get on with the people at work.短语动词由动词加上介词或副词小品词构成。比如：1. 由动词break构成的常见短语动词有：break away (from) 突然逃离；断绝往来，脱离；改掉，破除break down （机器等）坏了；（计划等）失败；（谈话等）中断；（健康等）变坏；感情失去控制break in 突然进来，强行进入；插嘴，打岔；训练，使适应break into 强行进入；突然…起来；打断，插嘴；占用时间break off 停止讲话；暂停，休息；（使）折断break out （火灾、战争等）突然发生，爆发break through 突破；克服，征服；强行穿过；（太阳等）从云层里出来break up 解散，驱散；（学校等）放假；结束，破裂；击碎；绝交break with 与…绝交，与…决裂2. 又如由bring构成的常用短语动词有：bring about 引起，实现，导致bring (a)round 使改变观点或看法；使苏醒；顺便把某人带来串门bring back 送还；使想起，使恢复bring down 击落；打死，打伤；使倒下；降低bring forth 产生，引起，结果bring in 收获；获利；介绍，引进；聘请；逮捕bring off 从船上救出；设法做成bring on 带来，引起；促使生长；帮助提高bring out 取出，拿出；显示出，使出来；出版bring over 说服，使改变（思想等）bring through 使度过（困难，危机等）bring together 使和解bring up 提出，提起；抚养，培养；呕吐二、动词短语动词短语由动词加上宾语或状语构成。如：break a glass 打破一个玻璃杯break one’s leg 摔断腿break a window 打破窗户break the rules 违反规定break a bad habit 改掉坏习惯break the world record 打破世界记录bread easily 容易断break to pieces 破成碎片bring a book 带来一本书bring sb sth 给某人带来某物bring sb great satisfaction 给某人带来极大的快慰bring death and famine 导致死亡和饥荒初中英语动词短语整理：1. breakbreak down破坏，出毛病，拆开break off暂停，中断 break in破门而入， 打断break into破门而入，突然…起来 break out爆发 break away from打破陈规；奋力挣脱；放弃习惯 break through 出现，突破break up打碎，拆散， 分裂、分解
2. callcall at a place (车船等)停靠;到某地拜访。call away 叫走，叫开…;转移(注意力等)。call back唤回; 回电话;call for需要，要求call for sth (sb) 喊着叫某人来，喊着叫人取来某物call in 叫进，请进; 找来，请来;来访；收回call off取消; 叫走，转移开call (up)on sb 拜访或看望某人call sb sth 为某人叫某物call (up)on sb to do sth 叫(请)某人做某事call up给…打电话;& 想起，回忆起; 召集，应召入伍&&& call out大喊，高叫; 叫出去3. comecome down下跌，落，降，传下来&&& come in进来&& come out出版，结果是come on来临/ 快点&&& come along一道来，赶快come over走过来&&& come up发芽，走近&&&&& come back回来&&& come from来自，源自4. cutcut down砍倒，削减&& cut up连根拔除，切碎5. diedie of死于（疾病，饥饿，寒冷，情感原因）die from死于（外界原因）&&&& die out绝种6. fallfall behind落后& fall down掉下，跌倒 fall into 落入；陷入fall off 从。。。掉下 fall out与。。。争吵7. gogo along沿着。。。。走go through通过，经受 go over复习，检查&&&&&&&&&&&&&&&&&& go up（价格）上涨，建造起来&&&&&&&&&&&&&&& go against违反&& go away离开go by时间过去&&&&&&&&&&&&&&&&&&&&&& go down降低，（日、月）西沉go on(with)继续进行&&&&&&&&&&&&&&&&&& go out外出，熄灭&&&&&&&&&&&&&&&&&& go off发出响声8. getget down下来，记下，使沮丧&&&&&&&&& get on进展，进步，穿上，上车&&&&&&&&&&& get off脱下,下车get away逃跑，逃脱，去休假get over克服，从疾病中恢复&& get along with进展，相处get up起床&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& get into (trouble) 陷入困境中&&&&&&&&&&&&&& get back取回，收回&&&&&&&&&&&&&&&&&&&&&& get out 出去get to 到达。。。9. givegive away赠送，泄露，出卖&&&&&&&& give out发出，疲劳，分发，&&&&&& give in (to sb.) 屈服give up放弃，让（座位）10. handhand in交上，提交hand out分发&&&& 11.holdhold on to…继续，坚持hold up举起，使停顿 hold on别挂电话，等，坚持&&&&&
12. keep&&&&&&& keep up with跟上keep out 不使。。。进入&&&&&&&&&&&&&& keep from克制，阻止keep away from避开，不接近， keep on继续，坚持下来keep down 使。。。处于低水平&&&&&&&&&&&&&&&&& 13.knockknock at/on敲knock into撞到某人身上&&&&&&&&&&&&&&&&&&& 14. looklook up查找，向上看& look through翻阅，浏览&&&&& look after/ at / for 照顾/看/寻找look out(for)当心&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& look about / around/round四下查看look forward to盼望&&&&&&&&&&&&&&&&&&&&&&&&&&& 15. makemake up编造，打扮，组成&&&&&&&&&&& make into / of / from 制成&&&&&&&&&&& 16.pass&&&&& pass by经过&&&&&&&&&&&&&& pass down(on)…to传给 17. paypay back还钱，报复& pay for付钱，因…得到报应&& 18. pickpick up拾起，接人，站起，收听，pick out挑选，辨认，看出&& 19. putput up张贴，举起，&&& put out伸出，扑灭&&&&&&&&&&&& put off推迟&&&&&&&&&&&&&&& put into放进，翻译put away放好，存钱&&&&&&&&&&& put down记下，平息put on穿戴，上映，&&&&&&&&&&&&&& put aside放到一边&&&&&&&&& put back放回20. standstand out 突显，引人注目stand up 起立，站起来38.其它常用词组wake up 醒，唤醒，弄醒stay up 不睡觉；熬夜depend on依靠；取决于worry about为。。。担忧laugh at嘲笑。。。begin with以。。。开始mix up混合、搀和major in 主修grow up成长open up 打开，张开；开发end up到达或来到某处； 达到某状态throw away 丢弃。。。ask for要求。。。wait for等待。。。agree with同意。。。find out（经研究或询问）获知某事send out 发出，放出，射出search for 搜索，搜查chop down 砍到have.. on 穿着。。。step out of 跨步走出drop out of 从。。。掉出happen to 发生在。。。belong to属于arrive in /at到达。。。try on试穿。。。vote on对。。。进行投票strech out伸展。。。hang out闲逛leave for离开前往 sell out 卖完、售完show up 出席；露面21. runrun after追逐，追捕&&& run away逃跑&& run off跑掉，迅速离开&&&&&&& run out of用完22. setset up建立&&&&&&& set off 激起，引起&&&&&& 23. taketake after 与…相像take off脱掉，起飞&& take away拿走&& take up从事，占用（时间空间）&&& take down记录，取下&&&&&&& take back收回take pride in以… ……为自豪, take the place of 代替24. thinkthink of想起，考虑，对…看法&&& think out（自然）想出办法&& think up想出（设计出、发明、编造） think about考虑&&&&&& think over仔细考虑&&&&&& 25. turnturn off / on打开&&&&&&&&&&&&&&&&&& turn to翻到，转向，求助turn down调低，拒绝&&&&&&&&&&&&&&& turn back返回，转回去turn round转过身来&&&&&&&&&&&&&&&&& turn up向上翻，出现，音量调大&&&&&&&&&&&&&&&&&&&&& 26. care care about 担心，关心；在乎，介意care for 关心，关怀，照顾27. cleanclean up 把…打扫干净，把…收拾整齐clean out 清除；把…打扫干净28.learnlearn about 获悉，得知，认识到learn from& 从/向。。。学习29. fightfight for..争取获得…fight against 争取克服、战胜…fight with…与。。。搏斗/战斗30. dreamdream of梦想，想橡dream about 梦到。。。31. workwork for 为。。工作work out 产生结果；发展；成功32. argueargue with …与。。。争论argue about..争论。。。33. complaincomplain to 向。。抱怨complain about抱怨。。。34. hear hear of 听说，得知hear about听到。。。的事，听到。。的话hear from接到。。。的信35. talktalk about 讨论。。。talk with/to..和。。。讨论36. livelive in 住在。。。live on 以。。。为主食&
发现相似题
与“Why not your teacher for help?A to ask B ask C asking D ask..”考查相似的试题有：
2941705672827729462847315849242378/ could泛指一般的能力
be able to&具体做某事的能力
1&表示能力两种时态can (could)，其他时态要用be able to的形式
e.g. He can speak French.
Was/were able to&可以表示成功做成某事的含义&managed
to do / succeeded in doing
e.g. With our help, he was able to
build the house.&
2&表示请求或许可&(Could&比&Can&更加客气)
e.g. Can I go now? Yes, you can.
3&表示推测或可能性，常用于否定句和疑问句
Can he be at school?
Today is Sunday. He can't be at school.　
Can't couldn't/ Can ? Could? have
There is no light in the room. Can
she have gone to bed?
She can't have gone to school-----
it's Sunday.
Could have done&可用在肯定句中表示过去存在的可能性
She could have gone out with some
friends yesterday.
Could have done&也可以表示虚拟语气：某事可能发生（并没有发生）
e.g. You are late again. You could
have got up earlier.
4 can&表示理论上的可能性
Anybody can make mistakes.
and might&的用法
1&表示请求和允许&类似can&和could用法(may&和might更加口语化)
May I watch TV now?& Yes, you
2&表示可能性;&猜测might比may更加不确定
may/might have done&对过去的揣测
e.g.He may be busy these days.
May not&可能不；不可能；一定不可
3&表示祝愿&
e.g. Wish you success!
May you succeed!
(3) must and have to
1．&must&现在或将来的必须，而且是主观看法
have to&有多种时态，&而且强调客观需要
I really must stop smoking now.
I had to leave early because I wasn't
feeling well.
Must I come here? Yes, you must. No,
you needn't. needn't / don't have to&
must not /mustn't禁止
2．&must&表示推测&意思非常肯定&"一定是""一定会"
It must be raining outside.
Must have done&对过去情况的推测
Must be doing&对正在进行的事情的推测
e.g. He must have gone over the article,
hasn't he?
It must have rained last night, didn't
He must be dancing now.
need and dare
二者既可以做情态动词，也可以做实意动词，注意区别
1.Need&作情态动词使用时，没有人称、数和时态的变化，一般使用于否定句和疑问句中。
1)& He need not come at once.
2)& Need you do the thing right
------Yes ,I must.
------No ,I needn't.
情态动词need可用于下列形式：
可与完成体连用表示：need
not have done（过去）本来不需做的而做了。
You needn't have gone there yesterday.
２．Need&作实义动词时是及物动词，与实义动词一样有人称、数和时态的变化，其后可以跟名词、代词、不定式、动名词及复合结构等。例：
1)& The old man needs your help.
2)& You don't need to go to there.
3)& The garden needs watering.
4)& The garden needs to be watered.
5)& I need you to help me with
my English.
３．Dare作情态动词和作情态动词的need&变化相似，没有人称、数的变化，表示意志上的主观可能，指在勇气和胆量上可能。一般可用于否定句、疑问句和条件状语从句中，在美式英语中尤其如此，一般不用于肯定句中。例：
1)& He dare not go out at night.
3)& How dare you say such things
against them?
dare (竟敢)和I
dare say（我想、在我看来、大概、恐怕）是惯用语。
How dare you cheat me!
I dare say the leader would give you
I dare say it will be rainy tomorrow.
4．Dare作实义动词和实义动词变化相同，有人称、数和时态的变化。
1)& She dares to answer these
questions.
3)& Do you dare to touch the
(5) will and would
1&表示征求对方(第二人称)意见或询问对方意愿&would&比will&更客气委婉
Will you have some more wine?
Would you mind my smoking here?
2 will&表示习惯性动作或某种倾向&would&表示过去习惯性动作或某种倾向
Fish will die out of water.
When I was young, I would play badminton
on Sundays.
Would&与&used to&的区别*
Would&只能用来表示重复的动作而不能表示状态
Used to&既可表示动作也可表示状态,&强调过去的情况，现在不如此了。
e.g. He used to be a university student.
3 will&表示意愿&决心
e.g. I will never do that again.
(6) shall, should and ought to
1 shall&在问句中表示征求对方意见或请求&用于第一，三人称
e.g. What shall we do now?
2 shall&肯定句中&表示说话人强烈的感情,&允许，命令，禁止和威胁，用于第二，三人称。
If you dare to do that, you shall
be punished.
These rules shall be obeyed.
Shall not&禁止，不许
3 shall&决心，意愿&= will
e.g. I shall come if I want to.
4 should&表示劝告，建议&= ought to&应该
e.g. You should wash your hands first.
Should&和ought to&的区别
Should表示主观认为应该
Ought to&强调按规定、责任、义务等必须或应该
e.g. As a student, you ought to study
I think I should try to lose some
5 should&表示推测和可能性&= ought to
e.g. They should/ ought to be there
6 should说话人的感情，如惊奇、愤怒、失望等，一般译为"竟然"&，通常用于否定句、疑问句当中。
e.g. You can't imagine that well-behaved
gentleman should be so rude to a lady.
7.&用于虚拟语气
Should have done / ought to have done
Shouldn't have done / ought not to
have done sth
You should have done it today.
You shouldn't have treated her that
情态动词中的must,
can, could, may, might都表推测。其中must的可能性最大，can
/ could次之，may
/ might最小。
情态动词的用法(1)
&&&&情态动词是动词当中使用频率比较高的词，虽然情态动词数量不多，但由于它们表示的意义多，用法相似，而且用于不同的句式和人称，因此不好掌握。本文笔者通过对情态动词进行分类，用表解比较的方法列出它们的异同，这样会更容易，更好地掌握情态动词的用法。
表一对常见的六个情态动词及部分情态动词的过去式形式分为八种意义，这些过去分词形式不是过去时。我们可以看出多数的意义都涉及了多个情态动词。相同意义的情态动词多数在用法是有区别的，通过其它八个列表我们会找出它们在意义和用法上的异同。
表一：情态动词意义分类
用法&usage
许可,请求permission
and request
可能&推测possibility and prediction
义务，职责duty and obligation
意图，打算intention
意愿，愿意Willingness&
意志，决心determination& and insistence
能力，才能&ability and capability
shall/should
will/would
shall/should
will/would
表二：表示许可和请求的情态动词用法
情态动词&&&&&&&&
auxiliary&
许可，请求&permission
and request
意义及用法
用于句式和人称
一般表示说话人和一般的许可。
Can I go with you?&我能跟你一起去吗？
用could&要比用can更加迟疑不决，当你没有把握得到允许时，这样更婉转。
Could I ask you something?&我可以问你一件事吗？
Could you give me a
hand?&你可以帮我一下吗？
用于肯定句和否定句，也可以用于疑问句。一般用于第一，二人称。cannot&表示"禁止"。
You can not smoke in
the bus.&公共汽车上不许吸烟。
Can I carry your bag?&我来替你提包好吗？
Could I give you dinner
one of these days?&这几天我请你吃顿饭行吗？
Can't you do it tomorrow?你不能明天做吗？
肯定回答，一般是yes, please. thanks。
肯定回答，不能用could&
Could I use your phone?
Yes, of course you can.
"我可以用你一下电话吗？""当然可以。"
1 )要注意，在请求允许的用法中，could
并不是过去时，它指的都是将来时。
2)一般不用过去一次性允许。
During the meeting I could ask questions. (误)
指说话人给予的许可。也可是一般的许可。同can相比may和might用于比较正式文体，往往含有尊敬之意。might&表示比较迟疑，婉转。不很常用。
You may smoke.你可以吸烟。
Visitors may ascend
the tower.&参观者可以登塔。
You might post this
letter for me.&是否请你给我寄一下封信。
May I make a suggestion?&我可以提个建议？
Might I borrow your
我借用你的自行车可以吗？
一般用于肯定，疑问和否定句。否定用于拒绝给予许可，或禁止做某事。通常在官方公告中，否定情态动词
Students may not stay
out after midnight.&学生午夜后不得在外逗留。
用于问句和条件句表示请求。
If I may say so, you
are not right.你是不对的，如果我可以这么说的话。
May I go now? No, you
我现在可以走了吗？是的，你可以走了。
否定回答，一般用mustn't 或cannot，
也可以 may not。
May I come in? 我可以进去吗？
No, you mustn't. 不，你不许进。
肯定回答，一般是 sure, certainly, of course,不能用might
Might I trouble you for a light?&
"You may indeed."
"我可以向你借火吗？""当然可以"
要注意，在请求允许的用法中，might 并不是过去时，它指的都是将来时。
表示说话人"不许"和"禁止"某人做某事，有很强的劝告语气。
Cars must not be parked
此地不准停车。
一般用于否定句。must not比may not更为强调。
You mustn't play football
in the street, children.&孩子们，不准在马路上踢球。
表示真求征求对方意见，请求给予指导。
Shall we take umbrella
with us?&我们带雨伞好吗？
一般用于第一，三人称疑问句。
Shall I open the window?我可以开窗户吗？
Shall he come to see
you?要不要他来看你？
肯定回答,一般是of course；
certainly；yes, please。&
否定回答，一般是no, thanks。&
will/would
表示请求。would&更客气。
Will/Would you pass
me the salt, please?&请把盐递过来，好吗？
一般用于第二人称。
Will/Would you spell
your name?&请你拼一下你的名字好吗？
肯定回答，一般是 sure, certainly
情态动词的用法(2)
&表三：表示"可能"的情态动词的用法
用法usage情态动词&&&&&&&&auxiliary&
possibility and prediction可能，预测
意义及用法
用于句式和人称
表示事实上的可能,&某事可能要发生或某时可能正在发生。
It may rain tomorrow.&明天可能下雨。
(I'm told by the radio.)
might&可能是逻辑上或事实上的可能。它表示的可能性比may小一些。
What you said might
be true.&你说的可能对。
may&强调逻辑上的可能。
can&强调事实上的可能。
He looks pale. He may
be ill.他脸色苍白，可能有病。
He is in poor health.
He can be ill at any time.他体质很差，任何时候都有可能生病。
一般用于肯定和否定陈述句，用于否定时否定动词。Might语气弱，可用于疑问句。
He may not be at home.他可能不在家。
The news may, or may
not, be true.&这个消息可能是，也可能不是真实的。
Might可用于条件句。
If you took some exercise,
you might not be so fat.&要是你锻炼锻炼，可能不会这样胖。
重读"May"表示可能。
He 'may not go tomorrow.
重读"not"&表示"允许"。
He may 'not go tomorrow
表示逻辑上或理论上的可能性，而不是某种实际上将要发生或正在发生的可能性。
Can it be true?&这会是真的吗？
Anybody can make mistake.任何人都可能犯错误。
The weather here could
be very cold in winter.&冬天这的天气有时很冷。
一般用于否定句和疑问句。
He can't be at home.他不可能在家。
not&的区别。
He may not be at home.&他可能不在家。
也可以用于肯定句。，
An accident can happen
if you do this.
如果你这样做，可能会发生事故。
表示有可能存在或发生，不表示某事实际发生的可能
It can rain this evening.
1)表示说话人的猜测。对某事有把握，因为从逻辑上是必然的。
This must be the book
you want.&这肯定是你要的那本书。
2)表示根据逻辑必须发生的事。
All men must die.&人都是要死的。
一般用于肯定句。
There must be a mistake.&肯定有错误。
可用于否定一般疑问句。
Mustn't there be another
reason for his behavior?&他的行为肯定没有另外的原因吗？
will/would
1)表示说话人对将来和现在的预测。对现在的预测认为肯定会发生。
I think he will be
all right now.&我想他现在一定好了。
That would be his mother.&那肯定是他母亲。
2)有时表示某种倾向和习惯性。
Oil will float on water.&油浮在水面上。
He'll talk for hours
if you give the chance.
如果给他机会，他会谈上几个小时。
On the magnetic equator
the needle would remain horizontal.&在磁赤道上磁针会保持水平。
would&可表示过去常常。
He would get up very
early.过去他常常起的很早。
它比must语气弱，但婉转。
They ought to be there
by now.&他们现在一定到那了
一般用于肯定和否定句
shall/should
表示说话人的猜测，估计应该
I shall be rich one
day.&总有天我会发财的。
That should be Janet
coming upstairs now.&正在上楼的准是珍妮特。
多用于第一人称。
&&表四：表示"应该"的情态动词的用法
情态动词&&&&&&&&auxiliary&
应该，必须（义务）duty
and obligation&
意义及用法
用于句式和人称
回答形式回答
表示说话人的意志和义务。或要求对方必须作某事。
You must be there on
time.&你务必要按时到达那里。
We must obey orders.&我们必须服从命令。
have (has) to表示客观上的需要，来自"外界"的义务。用于肯定和否定
It is time for the
meeting. I have to go now.&到开会得时间了，我现在得走了。
You don't have to hurry.&你不必这么匆忙。
用于肯定句，
You must come early
next time.你下次必须早来。
疑问句用于征求说话人的意见。
Must I come early tomorrow?&明天我必须早来吗？
或don't have to
may&用于法律和条约，相当于shall。用的较少。
Payment may be paid
by check.应用支票付款。
Might用来对人们提出建议，该干什么或应该干什么。也可以用来提出批评。
You might ask before
you borrow my car.
你应该先问问我在借我的车子。
Shall/should
shall在条约，规章和法令等文件中，表示义务和规定。
Each player shall wear
a number.每个运动员必须带上号。
should&表示主语的职责和义务或说话人的劝告。强调主观上。不象must那么独断专横。
You shouldn't judge
a man always by the clothes.&你不应该总是以貌取人。
用于陈述第一，二人称。
The new regulation
shall take effect on Oct. 1st.&新章程十月一实施。
should&和ought to的含义大致相同，ought to&强调在客观上（法律，章程和道义）
比should语气强。
You ought to go and
see Mary tomorrow..明天你应该去看玛丽。
You ought to have an
operation at once.&你应该马上去动手术。
never, really 可以放在ought 前面和后面。前面比较常见。
always ought to carry some spare money.
&表五：表示意图的情态动词的用法
情态动词&&&&&&&&auxiliary&
意图，打算intention&
意义及用法
用于句式和人称
will/would
用于表示"意图"，主要用于第一人称，will&不重读，可用缩写的形式。
I'll write as soon
as I can.&我会尽快写信。
Will you accept his
offer?&你愿意接受他的报价吗？
用于条件句，用于各种人称
Who will go with me?&谁愿意和我去？
We won't stay there
too long.&我们不愿在那多呆的太久。
shall/should
用于说话人的意图。同will&可以互换。
We shan't/won't go
if it rains.&如果下雨，我们不打算走了。
只能用于第一人称，&
I shan't stay here
long.&我不打算在这呆很长时间。
&&表六：表示意愿的情态动词的用法
情态动词&&&&&&&&auxiliary&
意愿&willingness&
意义及用法
用于句式和人称
will/would
表示主语的意愿。
He will help you if
you ask him.&如果你问他，他会帮助你的。
Would&比will语气更婉转。
Would/Will you have
another cup of tea?&你想再来一杯茶吗？
肯定句用于各种人称，用于二，三人称疑问句表示询问别人是否愿意做谋事，可用于条件句中。
Will you have some
tea.&你想喝茶吗？
If he will he can come.&如果他愿意，他可以来。
Would you excuse me?
(婉转)&你能原谅我吗？
肯定回答，一般&of
Shall/should
表示说话人的意愿。
He shall get his money.&愿意他拿到他的钱。
You should stay here
as long as you like.只要你乐意，愿意你呆在这。
一般用于肯定句，用于第二，三人称。
在疑问句中，表示征询听话人是否愿意。
Shall you do some shopping
with me?&你愿意和我一起买东西去吗？
&表七；表示意志的情态动词的用法
情态动词&&&&&&&&auxiliary&
决心&insistence
and determination
意义及用法
用于句式和人称
will/would
表示主语的意志。不能用缩写的形式。应重读。
I 'will stop smoking.&我决心戒烟了。
He' will do it whenever
you say.&你什么时候说，他一定会做的。
It's your own fault.
You would take the baby with you.&是你自己的过错，你非要带着孩子。
用于第二，三人称，表示对别人生气。可用于条件句。
I 'will have my own
way.&我要走自己的路。
He won't do what he's
told.&他不会做别人让他干的事。
Will you come this
way, please.你这边走不行吗？
If you 'will go，you may go at once.&如果你非走不可，你可以马上走。
Shall/should
表示说话人的意志和决心。shall要重读。
You 'shall marry him.&我坚持你应和他结婚。
No one 'shall stop
me.&不许任何人阻止我。
只用于第二，三人称肯定句。
You 'shall obey orders.&我要你服从命令。
The enemy 'shall not
pass.&决不让敌人过去。
表八：表示能力的情态动词的用法
&auxiliary&
能力ability and capacity&
意义及用法
用于句式和人称
表示人或动物的内在能力。有某种知识或者技能而能够做某事。有时可以和be able to互换。
He hurt his foot and
couldn't (wasn't able to) play football.&他脚受了伤，所以他不能踢足球了。
be able to暗指做成了某一事情。（manage to）
Because he worked hard,
he was able to pass his examination.&因为他努力工作，所以他能及格。
用于肯定，否定和疑问句。
He can speak several
languages.他会说好几国语言。
情态动词练习
I stop my car here?&&&& No, you_＿＿＿.
A. can't B. mustn't C. needn't D. don't have to
2. Must we clean the house now?&& No, you _______.
A. needn't B. may not C. mustn't D. can't
3. John his father about his failure in the exam.
A. dares not tell B. dares not telling
C. dare not tell D. dares not to tell
4. You return the book now. You can keep it next week if you like.
A. can't B. mustn't C. needn't D. may not
5. Johnny, you play with the knife, you hurt yourself.
A. won't...can't B. mustn't...may& C. shouldn't, must D. can't...shouldn't
6. The fire spread through the hotel very quickly but everyone get out.
A. had to B. would C. could D. was able to
7. Would you go out for a walk with me?
No, I . My girl friend is coming.
A. wouldn't B. shall not C. won't D. shouldn't
8. Man die without water.&&& A. will B. can C. need D. shall
9. If he started at 9 0'clock, he be there by now.
A. need B. shall C. ought to D. must
10. I mailed the letter two weeks ago. She_____it.
A. must receive B. can't receive C. might receive D. must have received
11.The professor gave orders that the experiment before 5:30p.m.
A. be finished B. will finish
C. must be finished D. would be finished
12. There was plenty of time. You_____.
A. mustn't hurry B. mustn't have hurried
C. needn't hurry D. needn't have hurried
13. Tom was a diligent boy. He go to school though it was raining hard.
able to B. could C. couldn't D. wasn't able to&
14. ______I go back before lunch?& No, I don't think you________.
A. Need...must B. Do...need to C. Must...have to D. May .... ought to
15. The teacher do all the exercises, but a pupil_______.
A. needn't....must B. may not...must&& C. needn't....needn't D. can't....must
16. Would you open the window please ?&& Yes, I______.
A. will B. would C. do D. can
17. A lion only attacks a human being when it is hungry.
A. should B. can C. will D. shall
18. ____Must I finish this novel this morning ?
____No, you_____.
A. mustn't B. might not C. don't have to D. can't
19. The taxi ____ only hold six passengers. It is full. You take the next one.
A. may...may B. can...may C. may...can D. must...can
20. I a little earlier, but I met a friend of mine on the way.
A. may come B. may have come C. could have come D. must have come
21. I wish to go home now, I?
A. may B. can't C. must D. do
22. He must have finished his homework, he?
A. mustn't B. didn't C. needn't D. hasn't
23. This pen looks like mine, yet it isn't. Whose it be?
A. must B. can C. may D. might
24. He didn't do well in the exam. He hard at his lessons.
A. must have worked B. ought to have worked
C. would have worked D. has worked
25. I wonder how he that to the teacher.
A. dare to say B. dare saying C. not dare say D. dared say
26. Mr Baker, a number of students want to see you. _____ they wait here or outside?
A. Should B. Will C. Shall D. Are
27. You the trees. Look, it is raining now.
A. mustn't have watered B. needn't have watered
C. could have watered D. might have watered
28. I give you an answer tomorrow. I promise!
A. must B. will C. may D. shall
29. As a soldier, you do as the head tells you.
A. will B. shall C. may D. ought
30. The streets are all dry. It_____ during the night.
A. can't have rained B. must have rained
C. couldn't rain D. shouldn't have rained
31. "When _____ he leave the hospital?" I asked the doctor.
A. will B. shall C. can D. may
32. They have not finish the work up to now.
____Well, they ______
A. should have B. should C. ought to D. ought have
33. Since it is already midnight, we______.
A. had better leaving B. ought to have leave
C. should take our leave D. might as well leave
34. you be happy!
A. May B. Can C. Must D. Would
35. Must we come tomorrow?
A. No, you can't B. No, you needn't
C. No, you mustn't D. No, you may not
36. You miss the lesson, though we have it on Thursday.
A. mustn't...needn't B. needn't....mustn't
C. mustn't...mustn't D. needn't...needn't
37. To succeed in a difficult task,_____.
A. one needs to work hard B. to work hard is needed
C. you need be a hard working person D. to work hard is what one needs
38. In case I______, I would try again.
A. will fail B. would miss C. should fail D. shall miss
39. Some people feel that handguns______.
A. should control B. should be controlled
C. must be controlling D. can be control
40. ______ open the door for you ?
A. Would you like that I B. Do you want that I
C. Will I D. Shall I
41. My son ____ the examination, but he wasn't careful enough.
A. might be able to pass B. must have passed
C. could have passed D. were able to pass
42. Isn't it strange that the lazy boy pass the exam?
A. should B. has C. might D. would
43. We the work so early without your help.
A. couldn't finish B. can't finish
C. couldn't have finished D. can't have finished
44. We the manager, but no one _____ his telephone number.
A. could have called, knew B. could have called, had known
C. could call, had known D. could call, knew
45. "Would you come and join them?"
"I wish I . But I am busy at this moment.
A. can't B. couldn't C. could D. can
46. If Alice this afternoon, the meeting should be put off.
A. would not come B. might not come
C. should not come D. could not come
47. I didn't see her in the meeting room this morning. She at the meeting.
A. mustn't have spoken B. shouldn't have spoken
C. needn't have spoken D. couldn't have spoken
48. With so much work on hand, you to see the game last night.
A. mustn't go B. shouldn't go
C. couldn't have gone D. shouldn't have gone
49. I thought you like something to read, so I have brought you some books.
A. may B. might C. could D. must
50. There was plenty of time. She______.
A. mustn't have hurried B. couldn't have hurried
C. must not hurry D. needn't have hurried
51. It's still early, you______.
A. mustn't hurry B. wouldn't hurry
C. may not hurry D. don't have to hurry
52. Please open the window,________?
A. can't you B. aren't you C. do you D. will you
53. We for her because she never came.
A. mustn't have waited B. shouldn't have waited
C. mustn't wait D. needn't wait
54. May I stop here?
No, you ____.
A. mustn't B. might not C. needn't D. won't
55. He _____ you more help, even though he was very busy.
A. might have given B. might give
C. may have given D. may give
56. I didn't see her in the meeting room this morning.&& She& at
the meeting.
A. mustn't have spoken B. shouldn't have spoken
C: needn't have spoken D. couldn't have spoken
57. Could I borrow your dictionary?&&& Yes, of course you______.
A. might B. will C. can D. should
58. Please don't make a noise.& --I'll be as quiet as a mouse.
A. Yes, I won't B. No, I won't C. No, I will D. Yes, I will
59. The young man has made so much noise that he not have been allowed to attend
A. could B. must C. would D. should
60. One ought for what one has done.
A. not to be punished B. to not be punished
C. to not punished D. not be punished
61. If you really want yourself to be in good health, you must always so much..
A. not, be smoking B. not, have smoked
C. not, to smoke D. be not, smoking
62. Where is Mary?
She isn't here. I think she_____.
A. may have gone home B. must have gone home
C. might have gone home D. All the above
63. I think Helen is at home.
No, she be at home, for she phoned me from the airport just five minutes ago.
A. mustn't B. needn't C. can't D. dared not
64. She is already two hours late. What to her?
A. can have happened B. may have happened
C. should have happened D. must happen
65. " he be watching TV now?"
"Yes, he be watching TV now?"
"No, he be watching TV now."
A. Must, can, mustn't B. Can ,must, can't
C. Can, can, mustn't D. May, must, needn't
66. You must be a writer, ______?
A. mustn't you B. are you C. must you D. aren't you
67. You must have seen him last night, ?
A. haven't you B. didn't you C. don't you D. must you
68. I got up early this morning, but I _______so because I had no work to do.
A. mustn't have done B. didn't need to do
C. needn't have done D. can't have done
69. Let's say that you could go there again, how feel?
A. will you B. should you C. would you D. do you
70. I daren't tell you what he did for fear that he angry with.
A. will be B. is C. was D. should be
71. Without the leadership of the Party, there no New China.
A. would be B. has been C. was D. should be
72. It is necessary that we a foreign language.
A. must master B. ought to master C. master D. should master
73. Most of the students felt rather disappointed at the English party. They say
that it ___ better organized.
A. had been B. had to be C. must have been D. could have been
74. I am surprised that he to help me when I needed it most.
A. should refuse B. would have refused& C. should have refused to D. may have
75. Look! Tom is too sleepy to work .He __ up watching TV.
A. mustn't have stayed B. shouldn't have stayed C. mustn't stay D. ought not to
练习题答案
1－10　　BACCB　　DCADD&
11－20　　ADACA　　ACCBC&
21－30　　ADBBD　　CBBBA&&
31－40　　BADAB　　AACBD&
41－50　　CACAC　　CDDBD&
51－60　　DDBAA　　DCBDA
61－70　　ADCAB　　DBCCB
71－75　　ADDCB
1) You____ all those clothes! We have
a washing machine to do that sort of thing
needn't have washed　　B) shouldn't have washed　
must not have washed　　D) can not have washed
John's score on the test is the
he____ last night.
should study 　　B)
should have studied　　C) must have studied　　D) must have to study
The room i it ____cleaned. (CET-4, 1996,6)
can't have been　　B)
shouldn't have been　　C) mustn't have been 　　D)
wouldn't have been
Nobody knows how people first came to these islands. They ____ from South America
must have sailed　　B)
can sail　　C)
might have sailed　　D)
should have sailed
Mary was not in her bedroom yesterday afternoon. She ____ in her classroom.
should have been　　B)
must have been　　C)
must be　　D)
Bob said he was going to join our club but he didn't. He ____ his mind.
can't have changed　　B) wouldn't have changed
must have changed　　D)
shouldn't have changed
You____ to town to see the film yesterday. It will be on TV tonight.
needn't go　　B)
had better not go　　C)
should not go　　D)
needn't have gone
We____ the letter yesterday, but it didn't arrive.
must receive　　B)
ought to receive　　C)
must have received　　D) ought to have received
With all the work on hand, he____ to the cinema last night.
mustn't go　　B)
shouldn't have gone 　C) could not go　　D) couldn't have gone
Eve was late for class again. She ____earlier.
should get up　　B)
must get up　　C)
need to get up　　D)
should have got up
I am feeling sick. I____ so much chocolate.
needn't have eaten 　　B) couldn't have eaten&
mustn't have eaten 　　D) shouldn't have eaten
I didn't send out my application form last week, but I ____.
had 　　B)
would do　　C)
should have 　　D)
might have to
Walking alone in the deserted village, John was scared. He thought he____ Tom to
go with him.
might have asked　　B)
should asked　　C)
must have asked 　　D)
should have asked
When I got to the cinema, the film I____ there earlier.
ought to get　　B)
ought to have got　　C)
must have got　　D)
The road was muddy. It____ last night.
must rained　　B)
must have rained　　C)
must be rained　　D)
could have rained
She can speak quite fluent English. She____.
must been in the U.S.A. for some time
must have been in the U.S.A. for some time
should have been in the U.S.A. for some time
May be in the U.S.A. for some time&
You should bear in mind that he is not so strong as he____.
was used to be　　B)
used to be　　C)
was used to　　D)
　　18)"We
didn't see him at the exhibition yesterday.""He ___it."
mustn't visit　　B)
can't have visited　　C) should have gone to see　　D)
Mary ____my letter, otherwise she would have replied before now.
should have received　　 B) has received
Couldn't have received　　D) ought to have received
I ____ you a valuable present for your birthday, but I was short of money.
would have liked to give　　B) liked to give 　
C) have liked to give　　D) would like to give
　　21)"Where
____ my umbrella?""Somebody ____ it away by mistake."
is, must have taken　　B) is, must take　　C) have been, must take　　D)
What ____ would happen if the director knew you felt that way?
will you suppose　　B)
you suppose　　C)
do you suppose　　D)
you would suppose
Two eyes ____see more than one.
will　　D)
____ you continue in your efforts and achieve new and greater successes.
Would　　B)
Will　　C)
We ought to help each other in our work, ____?
oughtn't we　　B)
should we　　C)
shouldn't we　　D)
ought to we
Tom ____ better than to ask Dick for help.
shall know　　B)
shouldn't know 　　C)
has known　　D)
should have known
You ____ your tooth pulled out before it rot completely.
had better got　　B)
had to get better 　　C) had better to get　　D) had better get
When we got to the cinema, the film hasn't started yet, so we ____.
needn't hurry　　B)
didn't need hurry　　C)
needn't to hurry　D)
needn't have hurried
It was r you ____ him seriously.
might have injured　　B) could injure　　C) should have injured　　D)
must injure&
As he had heart attack, he was told that he ____ continue the work.
needn'tB) may not 　　C) mustn't　　D) can't
An Englishman who ____not speak Italian was once traveling in Italy.
must　　B)
could　　C)
I ____like to make a suggestion.
could B) would C) must D) might
I know things are hard with you, but you ____try to get over the difficulties.
can 　　B)
may 　　C)
must 　　D)
I can't find the recorder in the room. It ____ by somebody.
may have been taken away B) may leave 　　C) may take away 　　D) must have taken away
He ____the 9:20 train because he didn't leave home till 9:25.
can reach 　　B)
could catch　　C)
may not catch 　　D)
couldn't have caught
　　情态动词部分练习题答案
2)C 3)A 4)C 5)B 6)C 7)D 8)D 9)D 10)D&
12)C 13)D 14)B 15)B 16)B 17)B 18)C 19)C 20)A&
22)C 23)A 24)C 25)A 26)D 27)D 28)D 29)A 30)C&
32)B 33)C 34)A 35)D
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