专题九系动词和情态动词
考查频次:系动词的用法★★★系动词辨析★★★情态动词的基本用法★★★★★
系动词的用法
1.系动词本身有词义,但不能单独作谓语,必须和表语一起构成系表结构,说明主语的状态、性质、特征或身份。
The soup smells delicious.这汤闻起来很香。
分类例词
be动词am,is are,was,were
感官类系动词look(看起来),sound(听起来),smell
(闻起来),taste(尝起来),feel(感觉,摸起来)变化类系动词become,get,grow,go,turn
状态类系动词keep,stay,remain,seem
( B )1.Sometimes the smooth surface of the lake really like a mirror.(2019抚顺)
A.sounds
B.looks
C.smells
D.tastes
( C )2.—Joe,don’t eat too much ice-cream.
—OK,mom.But it really good. (2019贵港)
A.feels
B.looks
C.tastes
D.sounds
( B )3.The cover of the book comfortable.It’s made of silk.(2019铁岭) A.tastes B.feels C.looks D.sounds
情态动词
1.情态动词的定义及特点
情态动词本身有一定意义,但不能独立作谓语,必须和动词原形一起连用。情态动词没有人称和数的变化。其否定形式一般在情态动词后加not(have to除外),其一般疑问句形式是将情态动词提至句首。
2.情态动词的基本用法
(1)can和could
①表示现在、将来或过去的能力,可用be able to替换。
He can speak Chinese.他会说汉语。
She could read at the age of three.
她三岁时就会看书了。
②表示请求、许可,常用于一般疑问句,相当于may。 could常用于表示语气比较委婉的请求或建议的句型。
Can I have a rest?我可以休息一下吗?
Could you help me?你可以帮我吗?
(2)may和might
①may意为“可以”,表示允许和征询对方许可;might语气更委婉。例:
—May I have a look?我可以看一下吗?
—Yes,of course.当然可以。
②may的否定回答常用please don’t...和You’d better not...,语气强烈时用must not。如:
—May I take the magazine out of the room?
——我可以把杂志带到室外吗?
—No,please don’t/you’d better not/you mustn’t.
——不,请不要/你最好不要/不准。
(3)must和have to
①must强调主观上“必须”,并且可以指现在、过去或将来,没有词形变化;而have to 强调客观上“必须,不得不”,并按行为动词变化的要求,有各种时态的变化形式。例:
I must finish homework first.
我必须先完成作业。
You don’t have to clean the room right now.
你不必马上就打扫房间。
②must 作“必须”讲时,可用于疑问句和肯定句,否定句常用needn’t或don’t have to。mustn’t表示“禁止,不许可”,语气很强。例:
—Must I clean the room now?
——我现在必须打扫房间吗?
—Yes,you must.(No,you needn’t./you don’t have to.)
——是的,你必须。(不,你不必。)
You mustn’t speak to your parents like this,especially in public.你不可以像这样和你父母说话,尤其是在公共场所。
(4)should
should表示劝告、建议,意为“应该,应当”。例:
You should come to the party on time.
你应该按时来参加聚会。
(5)shall
Shall...?常用于主语是第一人称的疑问句中,表示建议或请求,意为“……好吗?”。例: Shall we ride our bikes to the park?
我们骑自行车去公园好吗?
(6)will和would
①will和would作为情态动词,表示决心、意愿,意为“要……,想……”。例:
We will take a walk after supper.
晚饭后我们想散步。
He said he would do anything for me.
他说愿意为我做任何事。
②will和would用于疑问句中,常用于第二人称,表示请求、许可。例:
Will/Would you please do the dishes?
你可以洗一下碗碟吗?
(7)need
need 除了可以作实义动词,还可以作情态动词,意为“必须,必要”,用在疑问句和否定句中,一般不用于肯定句,肯定回答用must,否定回答用needn’t。例:
Since you are ill,you needn’t go to school today.
既然你病了,今天你就不必去上学了。
—Need I turn off the light now?
——现在我需要关灯吗?
—Yes,you must.(No,you needn’t.)
——是的,关。(不,不必了。)
(8)had better
“had better+do”表示最好做某事,否定式用had better not+do。例:
You’d better stay at home.你最好待在家里。
(9)情态动词表示推测和可能性
表示推测的情态动词有must(一定);can,could;may,might(可能)。具体用法如下:
①must表示有把握的推测,只用于肯定句。
She must know the answer.她一定知道答案。
Your mother must be waiting for you now.
你母亲现在一定正在等你。
②在肯定句中,表示对现在或将来把握不大的推测用“may(might)+动词原形”。例:
They might be in the library.
他们可能会在图书馆里。
He might have lost his keys.
他有可能丢了钥匙。
在否定句中,对现在表示推测用“can’t+动词原形”。例:
The man can’t be Mr.Li.He has gone to Canada.
那个人不可能是李先生,他已经去加拿大了。
They couldn’t have known the matter.
他们不可能知道了这件事情。
( A )1.—I’ve got a toothache,mom.
—Oh,you eat too much candy.(2019云南)
A.shouldn’t
B.needn’t
C.should
D.need
( C )2.“Dad,my bike is broken. I use yours?”“Sure! It’s in the backyard.”(2019贵阳)
A.Must
B.Should
C.May
( A )3.—I can’t find my phone anywhere.
—You have lost it while shopping.(2019眉山)
A.may
B.can
C.should
D.would
( A )4.With this new lock,you search for keys in your bag any more.Isn’t it cool?(2019无锡)
A.needn’t
B.can’t
C.mustn’t
D.shouldn’t
( C )5.—Some people don’t show their talents at the very beginning.
—I agree.Even Einstein read until he was seven.(2019苏州)
A.can’t
B.mustn’t
C.couldn’t
D.needn’t
( B )6.We should keep quiet in the library.We speak loudly.(2019凉山)
A.must
B.mustn’t
C.can
D.needn’t
( A )7.—Is that Tom over there?
—It be him.He is on the plane to Chengdu now.(2019成都)
A.can’t
B.might not
C.must
专题九情态动词 （一）中考备考指引 1.概念 情态动词是表示说话人的情绪、态度或语气的动词，本身有一定的词义，但不能单独作谓语，要和其他动词原形一起构成谓语部分。常见的情态动词有：can 能/may, might能够/will, would（表意愿）/need需要/dare敢/must必须/have to不得不/shall,should应该/ought to应该（表义务）…… 2.情态动词的语法特征 （1）不能表示正在发生或已经发生的事情，只表示期待或估计将要发生的事情。 （2）后接动词原形。 （3）没有人称和数的变化。 （4）没有非谓语动词形式，即没有不定时、分词等形式。 【注意】 ①must, can（could）, may（might），ought to只做情态动词。 ②need，dare既可作情态动词又可作实义动词。 ③shall（should）, will（would）既可作情态动词又可作助动词。 ④has/ have/ had to, used to, had better也具有情态动词的特征。 （二）考点精讲解析（使用及注意事项） 考点1 情态动词 （1）can和could 表示水平、可能性、怀疑或推测（限于否定句、疑问句或感叹句中）和允许。 【注意】 could用于一般疑问句中比can语气更委婉，属于现在的情况。 如：The radio is pretty loud. Could you please turn it down a bit? （2）may 和might 表示允许、推测（用于肯定句）、请求或规劝和祝愿。 （3）must和have to
①must表示义务或责任、很有把握的推测（用于肯定句）和禁止（mustn’t）。 ②must是说话人的主观看法，而have to则强调客观需要。 must只有一般现在时，have to有多种时态形式。 ③must的否定形式：mustn’t表示“不准” ④由must构成的一般疑问句，否定回答用needn’t或don’t have to（不必）。 如：—Must we hand in our exercise books now? —No, you needn’t. / No, you don’t have to. （4）should和ought to ①表示“应该”，ought to表示义务或责任，比should语气重。 ②表示劝告、建议和命令。should和ought to可通用，但在疑问句中常用should。 （5）shall和should ①表示允许或命令（常用于第二、第三人称）。 ②表示征求意见（常用于第一、第三人称的疑问句中）。 （6）will和would 表示意愿或决心、有礼貌的请求、习惯动作和预言。 （7）need 1）作情态动词时，用于否定句和疑问句中，在肯定句中用must，have to, ought to或should。 如：○1—Need I go with her? —Yes, you must./ No, you needn’t. ○2You needn’t worry about it because it’s not your fault. ○3We needn’t do it again, need we? 2）作实义动词时，后接to do，表示与主语的关系是主动的，若与主语的关系是被动的，则接doing或者to be done。 如：○1You don’t need to do it by yourself. ○2The table needs painting./ the table needs to be painted. （8）had better 表示“最好，应该”，后接动词原形，had通常缩写为’d；否定形式是：
大学英语语法精解——情态动词 首先让我们分析以下近几年情态动词的考题： 1) This box is too heavy, _________give me a hand?(1998.1) A .would you mind B. would you please C. will you like to D. will you please to 2) Research findings show we spend about two hours dreaming every night , no matter what we ____ during the day.(1999.1) A. should have done B. would have done C. may have done D. must have done 3)It was very kind of you to do the washing-up,but you____ it.(1998.6) A. mustn't have done B. wouldn't have done C. mightn't have done D. didn't have to do 4) If you don't like to swim, you ___ stay at home.(1995.1) A. should as well B. may as well C. can as well D. would as well 5) You ____ him so closely;you should have kept your distance.(2000.6) A. shouldn't follow B. mustn't follow C. couldn't have been following D. shouldn't have been following 6) You ___her in her office last Friday; she's been out of town for two weeks.(1996.1) A. needn't have seen B. must have seen C. might have seen D. can't have seen 7) The room is in a terrible mess; it ____ cleaned.(1996.6) A. can't have been B. shouldn't have been C. mustn't have been D. wouldn't have been 参考答案 1) B 2) C 3) D 4) B 5) D 6) C 7) A 2．情态动词的测试要点 从以上例题可以看出，四级语法对情态动词的测试大体有以下几点。 1）情态动词的基本用法，如①④⑤。 2）情态动词+ 动词的完成形式的用法，如③⑥。 3）情态动词的推测性用法,如⑦。
人教版中考英语专题训练情态动词1 一、初中英语情态动词 1．——You look pretty in green, Kate. ——Thank you. I like green. Green ______give me energy. A. can B. must C. should D. has to 【答案】A 【解析】【分析】句意:一一凯特，你穿看绿色的衣服很漂亮。一一谢谢，我喜欢绿色。绿 色给我能量。A.能，表示能力;B.must必须，强调主观愿望;C.应该，强调责任与义务;D.必须. 强调客观要求。绿色能给我力量，我喜欢。故选A。 2．All passengers ______ go through safety check before they take a plane. A. can B. may C. must D. could 【答案】 C 【解析】【分析】句意：所有乘客登机前必须接受安全检查。A. can能够，表示能力；B. may可以，表示许可；C. must必须；D. could可能，可以。登机前必须安检。故选C。 【点评】情态动词词义辨析。以及can、may、must、could四个词的词义和用法。 3．—Life is becoming convenient with the Internet. —That's true! Almost everything ______ be done online. A. must B. could C. should D. can't 【答案】 B 【解析】【分析】句意：——生活正随着网络变得方便。——那是真的。几乎所有的事情 可以在网上完成。A必须，B可以，C将，D不能。根据 Life is becoming convenient with the Internet. 生活正随着网络变得方便，可知应该是很多事情可以在网上完成，故选B。 【点评】考查情态动词。注意理解和掌握情态动词的不同用法。 4．Teenagers allowed to drive . A. should not be B. should be not C. not should be 【答案】A 【解析】【分析】句意：年轻人不应该被允许驾车。Should是情态动词，其否定表达一般 在在后面加副词not，故选A。 【点评】此题考查含有情态动词的被动语态的否定形式。平时注意记忆情态动词的记忆和 用法。 5．You be tired after walking for such a long time. Sit down and have a rest. A. can B. can't C. mustn't D. must 【答案】 D 【解析】【分析】句意：走了这么长时间你一定很累了。坐下休息一下吧。can能，能 够，can't不能，对事物进行否定推测；mustn't一定不是，禁止，must一定，对事物进行 肯定推测，根据after walking for such a long time，可以肯定你一定很累，所以是进行肯定
( )1 John___ come to see us tonight, but he isn't very sure yet. A. may B. can C. has to D. Must 2 They ___ do well in the exam. A. can be able to B. be able to C. can able to D. are able to 3 —May I take this book out? —No, you___. A. can't B. may not C. needn't D. aren't 4 You___ go and see a doctor at once because you're got a fever. A. can B. must C. dare D. would 5 —Can you speak Japanese? —No, I____. A. mustn't B. can't C. needn't D. may not 1. – He___ be in the classroom, I think —No, he ___ be in the classroom. I saw him go home a minute ago. A. can; may not B. must; may not C. may; can't D. may; mustn't 2 —Shall I get one more cake for you, Dad? —Thanks, but you___, I've had enough. A. may not B. must not C. can't D. needn't 3 Even the top students in our class can't work out this problem, so it be very difficult. A. may B. must C. can D. need 4 He isn't at school. I think he ___ be ill. A. can B. shall C. must D. has to 5 ___ I take this one? A. May B. Will C. Are D. Do 1 The children___ play football on the road. A. can't B. can C. mustn't D. must 2 You ___ be late for school again next time. A. mustn't B. needn't C. don't have to D. don't need to 3 —Must I do my homework at once? —No, you___. A. needn't B. mustn't C. can't D. may not 1 His arm is all right. He___ go and see the doctor. A. has not to B. don't have to C. haven't to D. doesn't have to 2 He had to give up the plan, ___ he? A. did B. didn't C. does D. doesn't 3 They had to walk here, ___ they? A. mustn't B. did C. didn't D. hadn't 1 He had better stay here, ___ he? A. doesn't B. don't C. hadn't D. isn't 2 You'd better___late next time. A. not to be B. not be C. won't be D. don't be 3 You'd better ___ your hair ___ once a month. A. had; cut B. had; cutted C. have; cut D. have; cutted 4 You___ ask that man over there. Maybe he knows the way. A. had better not to B. had not better C. had better D. had better not 1 —Shall we go and visit the History Museum next Sunday? —________ A. Here you are B. Sorry, I can't C. Yes, please D. Let me try 2 —Why don't you ask Mike to go with us? —Thanks, ___. A. I will B. I won't C. lean D. I may 3 —___ I take the newspaper away? —No, you mustn't. You____read it only here. A. Must; can B. May; can C. Need; must D. Must; must 1 Excuse me. ___ you please pass me that cup? A.Do B. Should C. Would D. Must 2 ___ you like to have another try? A. Could B. Will C. Would D. Do 3 —Would you like to go boating with us? —Yes, ___. A. I'd like B. I want C. I'd like to D. I do 1 You___ worry about your son. He will get well soon. A. needn't B. can't C. mustn't D. have to 2 The poor man needs our help, ___ he? A. need B. needn't C. does D. doesn't 3 —Must we do our homework first? —No, you___. You may have a rest first. A. mustn't B. needn't C. may not D. can't 1. I told Sally how to get here, but perhaps I _______ for her. A. had to write it out B. must have written it out C. should have written it out D. ought to write it out 2. —There were already five people in the car but they managed to take me as well. —It _______ a comfortable journey. A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been 3. It’s nearly seven o’clock. Jack _______ be here at any moment. A. must B. Need C. should D. can 4. Johnny, you _______ play with the knife, you _______ hurt yourself.
一、选择题 1．— Must I go home? — No, you ________. A．can’t B．mustn’t C．don’t D．needn’t 2．-Listen! A wolf is crying! -It _______ be a wolf, because a wolf never comes out at this time. A．mustn’t B．needn’t C．can’t D．don’t 3．A: Is Jim coming by train? B: I’m not sure. He _______ drive his car. A．must B．may C．need D．should 4．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 5．—______ you please tell me something about the life in Canada or America?—Sorry, I______. I don’t know either. I’m from Australia. A．Could; couldn’t B．Can; couldn’t C．Could; can’t D．Can; mustn’t 6．—Jenny, we buy Mom presents. We can clean the house from top to bottom.—Good idea! It’s a special present for Mother’s Day. A．can’t B．mustn’t C．shouldn’t D．needn’t 7．— May I have some wine? — No, you . You have to drive home later. A．shouldn't B．needn't C．mustn't D．may not 8．—Jack must be in his office, I think. —No, he be in the office. He flew to Canada this morning. A．needn't B．shouldn't C．can't D．mustn't 9．Since the road is muddy,it ________last night, ________? A．must be rained; wasn’t it B．must have rained; didn’t it C．must rained; didn’t it D．must have rained; wasn’t it 10．—Have you heard about the temperature of the earth will rise to 59℃ in 2020?—Don’t worry! The news _______ be true. A．must not B．may not C．needn’t D．will not 11．-_________ you help me with my homework? -Of course if I __________. A．Could; could B．Can't; can C．Could; can D．Can; could 12．—Must we finish the work right now? —No, you ________. You can do it tomorrow. A．needn’t B．shouldn’t C．mustn’t D．can’t 13．— Will Jim come to Yangzhou for a holiday? — He ________come, it depends on how much homework he will have.
( )1. (2018．武汉)-Must you go? -Yes, I'm afraid I really ____ . A. may B. should C. must D. can ( )2.(2018 -呼和浩特)-The woman over there looks like our English teacher. -It ______ be her. She's having a meeting in Beijing now. A. may not B. mustn't C. shouldn't D. can't ( )3. (2018 .哈尔滨)- ______ I take photos here? -No, you mustn't. Don't you see the sign "NO PHOTOS'''? A. Would B. May C. Must ( )4. (2018 .青岛)This book ______ be Lucy's. Look !Her name is on it. A.can B. May C. Must D. might ( )5. (2018 .邰N)-Must I go home now? -No, you ______ . A. mustn't B. needn't C. shouldn't ( )6. (2018 .长沙)-Is the man over there Adam'? -It ______ be him. He has gone to Hong Kong on vacation. A. Must B. can't C; mustn't ( )7. (2018 .达州)-Look! The woman at the school gate ______ be our headmaster. -No, it ______ be her. She is holding a meeting in the office now.
情态动词 （一）情态动词的定义: 情态动词表示说话人对某一动作或状态的态度。 （二）情态动词的特点 1. 情态动词有一定的词义。 2. 情态动词不能单独做谓语，它必须和其他动词的原形一起构成谓语。 3. 情态动词没有人称，数的变化。 （三）情态动词的结构和意义 1.情态动词的基本句型 ?肯定句：主语+情态动词+动词原形+...... ?否定句：主语+情态动词+not+动词原形+...... ?疑问句：情态动词+主语+动词原形+...... 2. 情态动词的意义 must“必须”；can/could“能，会”；may/might “可以”；should“应该”； would“愿，要”；have to“不得不”；need“需要” （四）情态动词的基本用法 1.can (could主要指过去时间) 1）表示人或物本身所具有的能力，意为“能，能够，会” : Two eyes can see more than one. / I can swim very well. 2）表示可能（理论上或是逻辑判断上） He can’t (couldn’t) have enough money for a new car. 3）表示允许： Can I have a look at your new pen? He asked whether he could take the book out of the reading-room. 4）表示对现在动作或状态的猜测，主要用于否定句和疑问句中或感叹句中: He can’t (couldn’t) be over sixty.他不可能超过六十岁。 5）could表示比can更委婉客气的提出问题或陈述看法，指的是现在时间。 Can (Could) you lend me a hand? 帮我一把好吗？ 2. may (might) 1）表允许，询问或说明一件事可不可以做，might指过去时间；但在疑问句中might也可指现在时间，语气比may更委婉。 May (Might) I ask for a photo of your baby? 我可以要一张你宝宝的照片吗？ 在回答以may引起的问句时，肯定回答是一般可仍用may,或Yes, please. / Certainly./Sure./Of course. ； 否定回答根据说话人的语气由强到弱分别选用: must not(mustn’t)（禁止）/ had better not（最好别）/ may not（不行） 2) may表可能,但所表示的可能性不如can所表示的那样肯定。might可以指过去时间，也可以指现在时间，但语气更加不肯定。 He may be at home. 他可能在家。 They might be having a meeting, but I’m not sure.他们有可能在开会，不过我不肯定。 3. must（have to表示客观需要） 1）表示“必须”（主观看法）时，用于肯定句或疑问句；用于否定句时表示“禁止”。 We must do everything step by step. 我们一切都必须循序渐进地做。 You must get home before 9:00. 2）表示揣测。意为“想必、准是、一定”等，只用于肯定句。 He must be ill. He looks so pale. 他准是病了。他的脸色苍白。 3)must的疑问句，肯定回答用must，否定回答用needn’t或don’t have to。 4. should 1）表责任或义务，意为“应该”，用于各种人称。
2012-2013学年初三下学期英语复习题（第09周）姓名：______________ 成绩：_______________ ---非谓语动词考点讲解和训练 1.（成都市2012）Parents often ask their kids ______ their internet friends because the kids may be in danger. A. to meet B. not to meet C. meeting 2.（北京市2012）Let’s ____ for a walk, shall we? A. to go B. going C. go D. Gone 3.（广安市2012）---Dad, why should I stop ______ computer games? ---For your health, my boy. A.to play B.playing C .play 4.（绵阳市2012）Excuse me, would you mind _______ your voice down, please? A. to keep B. keeping C. keep D. kept 5.（绵阳市2012）I’m not sure when the plane will __________ and when it will land. A. take off B. run off C. open up D. stay up 7.（重庆市2012）Mr. Li asks the students __________in the river, because it’s too dangerous. A. swim B. to swim C. not to swim D. to not swim 8.(资阳市2012）Why not join an English club to practice ______ English, Joe? A. to speak B. speaking C. speak D. spoke 10.(自贡市2012)--When are you going to have your hair ______?--This afternoon. A. cut B. to cut C. cutting 11.(自贡市2012) You should keep the window __________ because the room is too hot. A. open B. opening C. opened 12.【2012贵州贵阳】It took Janet three hours _______ reading this interesting story. A. to finish B. finished C. finishing 13.【2012广东】. It took me two weeks_______reading the novels written by Guo Jingming. A. finish B. to finish C. finishes D. Finishing 15.【2012湖北咸宁】Drivers shouldn't be allowed _______ after drinking, or they will break the law. A. drive B. driving C. to drive D. to be driven 16.【2012江苏宿迁】---Which do you prefer, Chinese food or Western food? ---I would rather ______Chinese food. Let’s have noodles. A. to have B. having C. had D. have 17.【2012 内蒙古包头】______energy, turn off the hot water after you take a shower. A. Save B. Saving C. Saved D. To save 18.【2012河南】______ out your love. The world will become a nicer place to live in. A. Speak B. To speak C. Spoke D. Speaking 19.【2012.山东菏泽】Welcome to our school, ladies and gentlemen. ______, I’d like to introduce myself. A. To be honest B. To my surprise C. To start with D. To tell you the truth 20.【2012山东聊城】________ English well, one must have a lot of practice. A. Speaks B. To speak C. Spoken D. Speak ---情态动词考点讲解和训练 1.（成都市2012）---Excuse me, whose Japanese book is this? ---It ______be Tom ' s. In our class, only he is studying Japanese. A. must B. can't C. Would
第九讲情态动词与虚拟语气 (一) 1．can/could (1)表示能力，意为“能，会”。 The smallest good habits can make a big difference. 最小的好习惯会产生很大的作用。 It was several minutes before I could take in what he was saying. 过了好几分钟，我才理解他说的是什么。 (2)表示推测，意为“可能”，用于否定或疑问句中。can比could语气强。 This can’t/couldn’t be done by him. 这事不可能是他干的。 (3)表示请求或允许。在疑问句中可以用could代替can，语气更委婉。 Could I use your phone, please? 我可以用一下你的电话吗？ (4)表示理论上的可能性。 Always believe that good things are possible, and remember that mistakes can be lessons that lead to discoveries. 要始终相信美好事物的降临并非不可能，失误也会变成经验教训，从而获得更多发现。 (5)用于否定句和疑问句，表示惊异、怀疑、不相信等态度。 He can’t/couldn’t do this. 他不可能这样干。(表示不相信) Can this be done by him?
这可能是他干的吗？(表示疑惑、惊讶) (6)用于固定结构中 ①can’t ... too/enough表示“无论……也不过分；越……越好”。 You can’t be too careful while driving. 你开车时越小心越好。 ②can’t help doing sth.表示“禁不住做某事”。 Hearing this story, I couldn’t help laughing. 听到这个故事，我禁不住大笑起来。 [名师指津] can 和be able to都可以表示能力，二者有时可互换。但be able to 可以表示“终于做成某事”，有更多时态和人称的变化；还可与某些情态动词或系动词连用，如might, ought to, seem等；还可用非谓语动词形式。 If you have a good sleep, you will be able to work out this problem. 如果你睡个好觉，那么你就能做出这道题。 He seemed to be able to put complicated thought in simple words. 他似乎能把复杂的思想用简单的话语说出来。 She grasped my hand, not being able to say anything. 她抓着我的手，什么话也说不出来。 2．may/might (1)表示请求和许可。在疑问句中，might可以代替may，语气更加委婉。 May I ask if you are fond of traveling by sea? 我可以问一下你是否喜欢乘船旅行？ Might I borrow your computer? 我可以借一下你的电脑吗？ (2)表示可能性，可以对现在、过去或将来进行推测。通常用于肯定句和否定句。might 比may语气弱。 Parents may scold their children when they are untidy but they should also understand that their room is their own private space. 当孩子不整洁的时候，父母也许会责骂孩子。但他们也应该理解孩子们的房间是他们的私人空间。 If you forgot to turn it off when you went away, you might burn down the house. 当你离开时如果忘记关掉它，你可能会把整个房子都烧毁的。 (3)表示祝愿，常用结构为“May＋主语＋动词原形！” May you succeed! 祝你成功！
最新英语语法情态动词归纳总结 一、单项选择情态动词 1．Mr. Smith is almost on time for everything. How ________ it be that he was late for the meeting? A．can B．should C．may D．must 【答案】A 【解析】 【详解】 考查情态动词辨析。句意：史密斯先生几乎任何事情都是准时的。他怎么可能开会迟到了？ A. can可能，可能性，表示可能性时，常用于否定句和疑问句中，且有时还带有“惊奇、不相信” 等感情色彩。B. should 应该； C. may也许，表示可能性时常用于肯定句中，不用于疑问句中。D.must常用于肯定句中表推测，“一定……”的意思；本题是强调句型的一个变式：强调其特殊疑问句how的形式。根据前句“斯密斯先生几乎是很准时”可推测出“怎么可能开会迟到呢？”。根据句意可知，用于疑问句中的“可能性”且有不相信的色彩，四个选项只有“can”符合题意。故选A 【点睛】 情态动词就是表示说话者对事情的一种看法，也就是一种语气。情态动词的用法一直是命题者常设置的考点和重点，平时要加强记忆。 2．--- Oh, my God! I just missed the last bus back home. --- That’s really bad. I’m sure you ______ it, but you just didn’t hurry up. A．had caught B．could have caught C．could catch D．can catch 【答案】B 【解析】 【详解】 考查情态动词+have done结构。句意：——哦,我的上帝!我刚好错过了回家的末班车。——这是非常糟糕的。我肯定你能赶上，但你就是不抓紧。could have done“本来能做而没有做”。故选B。 3．-- Did Jim come? -- I don’t know. He _______ while I was out. A．might have come B．might come C．must have come D．should have come 【答案】A 【解析】 【详解】 考查情态动词推测用法。句意：Jim来了吗？--我不知道，在我不在的时候，可能来过。根据前文I don’t kn ow.可知，说话者不知道Jim来没来，因此后文推测来过，但是语气很不确定，故可知选A。对过去情况的推测为情态动词+have done，must have done 一定做了某
一、选择题 1．—Could you please hang out with me this afternoon? —______. I have to make a plan for Clean-Up Day. A．Sorry, I couldn’t B．Sorry, I can’t C．Sure, I can D．Sure, I could 2．―I can't stop smoking, Doctor. ―For your health, I'm afraid you . A．must B．can C．need D．have to 3．I hope you __________ to my birthday party. A．to come B．can come C．comes D．are come 4．—Is that Kate’s green bike? —It ____________be hers. She likes pink. A．can’t B．could C．mustn’t D．might 5．All passengers_____ go through safety check before they take a plane. A．may B．can C．must D．need 6．A: Is Jim coming by train? B: I’m not sure. He _______ drive his car. A．must B．may C．need D．should 7．—Can I take some milk and biscuits to the reading room? —No, our school has a rule that students _______ eat or drink there. A．can’t B．mustn’t C．needn’t D．may not 8．—Doesn’t Frank like staying at home and looking after his little sister? —_______, but he ________ because both of his parents work. A．Yes; has to B．No; has to C．Yes; doesn’t have to D．No; doesn’t have to 9．—Sorry, Ms Wang. I left my homework at home. Must I hand it in today? —No, you_______ . You_______ bring it here tomorrow. A．mustn’t; should B．needn’t; must C．mustn’t; may D．needn’t; can 10．— I wonder if these are Jim's glasses. —They _____his. He doesn't wear glasses. A．might be B．could be C．can't be 11．We _______ keep the new traffic law and learn how to protect ourselves. A．may B．should C．can D．need 12．—Must we finish the work right now? —No, you ________. You can do it tomorrow. A．needn’t B．shouldn’t C．mustn’t D．can’t 13．—I feel tired. —You ________ go to bed so late.