情态动词大学英语语法精解
大学英语语法系列讲座--情态动词1
大学英语语法系列讲座情态动词中国地质大学（武汉）外语系许峰情态动词(Modal V erbs)又称为情态助动词(Modal Auxiliaries)。
英语中助动词主要有两类：一是基本助动词，如have，do，be等；二是情态助动词，如may，must，need等。
情态动词与其他动词连用表示说话人的语气，可表达建议、要求、可能、意愿等。
情态动词没有人称和数的变化。
在大学英语考试中，情态动词部分主要重点测试以下内容：情态动词+动词完成式。
情态动词must, should, may(might),ought to, can(could),need, would等都可以与动词完成式连用作谓语，其模式为“modal verb+ have+ v-ed”。
这类结构表示对过去所发生动作的推测或判断。
但是，不同的情态动词所表示的意思又有所不同。
1.must+have+v-ed和can't/couldn't +have+ v-ed“must+ have+ v-ed”表示对过去事情较有把握的、肯定性的推测，常译为“一定”，“准是”，“肯定”。
当must用于推测意义时，其否定形式通常不是must not，而是can/could not。
“can't/couldn't + have+ v-ed”表示对过去事情的否定性推测，常译为“决不可能”，“不太可能”。
例1：Since the ditch is full of water, it must have raine d last night.既然水沟里积满了水，可见昨天夜里一定是下过雨了。
例2：—You realize that you were driving at 100 mph, don't you?—No, officer, I couldn't have been. This car can't do more than 80.——“你刚开车的速度为每小时100英里，不知道吗?”——“不，警官先生，我不可能开那么快，因为这辆车每小时的速度不可能超过80英里。
英语四级语法情态动词解析
英语四级语法情态动词解析2016英语四级语法情态动词解析想要学好英语四级怎么能不知道情态动词的用法呢?下面就让店铺为大家详解一下吧。
1)用于第一人称征求对方的意见，如：What shall I wear on the journey? 我路上穿什么好呢?Shall we dance? 我们跳舞好吗?2)shall 用于第二、三人称时表允诺，警告，命令，威胁(现已少见)，如：She shall get her share. 她可以得到她的一份。
You shall have it back tomorrow.你明天可以将它拿回。
情态动词should一般不应被认为是情态动词shall的过去式，主要用法有：1)用于第一人称疑问句中询问对方的意愿，但语气较委婉温和，如：What should we do now? 我们现在该怎么办?2)表示应该、必须，常与must 换用。
例如：We should (must) master a foreign language at least.我们应当至少掌握一门外语。
3)"should+be+表语"的`结构，表示推测或惊奇。
例如：They should be back by now. 他们现在应该回来了吧。
I am sorry that she should be so careless. 我感到遗憾她竟会那样粗心。
4)"should+have+过去分词"的结构，表示过去该做而实际上尚未做的动作或行为;其否定则表示发生了不应该发生的行为。
其同义结构"ought to have +过去分词",表示过去"早应该"、"本当"之意，语气较强。
例如：I should have thought of that. 这一点我是应当想到的。
(但没想到)They should not have left so soon.他们不应当走得这么早。
情态动词详解
情态动词详解情态动词是英语语法中的重要组成部分，起到表达说话者的意愿、能力、可能性、推测等作用。
本文将详细解析情态动词的定义、特点和常见用法，帮助读者更好地理解和运用情态动词。
一、情态动词的定义及特点情态动词（Modal Verbs）是一类特殊的助动词，用来表达情感、态度、推测、条件、意愿、建议、能力、必要性等。
情态动词有以下几个特点：1. 情态动词没有人称和数的变化，即不论主语是第一人称、第二人称还是第三人称，情态动词的形式不变；2. 情态动词后面直接接动词原形，不加“to”；3. 情态动词没有时态和语态的变化，即不论句子时态如何，情态动词的形式不变；4. 情态动词没有完成式，因此无法在句子中出现“have + 过去分词”的结构。
二、常见情态动词及其用法下面是常见的情态动词及其用法的详细解析：1. Can“Can”表示能力、许可和可能性。
能力：用于表达某人在某方面具有的能力或技能。
例句：He can speak three languages.许可：用于征求或给予许可。
例句：Can I borrow your pen, please?可能性：用于表达可能发生的情况。
例句：It can rain tomorrow.2. Could“Could”是Can的过去式，表示过去或虚拟条件下的能力、许可和可能性。
能力（过去）：用于表达过去具备的能力或技能。
例句：When I was young, I could run very fast.许可（过去）：用于过去征求或给予许可。
例句：Could I use your phone yesterday?可能性（虚拟条件）：用于表示虚拟情况下的可能性。
例句：If I had enough money, I could travel around the world.3. May“May”表示允许、可能性、祝愿和推测。
允许：用于征求或给予许可。
例句：May I come in?可能性：用于表达主观推测的可能性。
情态动词与虚拟语气 Word版含解析
专题七情态动词与虚拟语气情态动词的基本用法情态动词具有一定的词义，没有人称和数的变化，必须和其他动词一起构成谓语，用来表示愿望、态度或推测等。
1．表示能力(1)表示现在的能力⎩⎨⎧canam/is/are able to(2)表示将来的能力：will be able to (3)表示过去的能力⎩⎪⎨⎪⎧could 表示过去的能力，不表示是否做was/were able to 表示过去有能力做，并且成功地做了 相当于：managed to do sth. /succeeded in doing sth.could have done 表示过去本来能够做但未做I can 't promise anything, but I 'll do what I can . 我不能许诺什么，但我会尽力而为。
(表示现在的能力)The fire spread through the hotel very quickly but everyone was able to get out. 尽管这场大火迅速蔓延到了这个宾馆，但是每个人都逃了出去。
(表示过去有能力做并且成功地做了)I could have worked out the problem, but I was too nervous.我本来可以解出这道题，但我太紧张了。
(表示本来有能力做但未做) 2．表示推测(可能性)可能性可分为客观的可能性和具体事情实际发生的可能性两种。
(1)客观的可能性并不表示具体某事是否会发生，而用来说明人或事物的特征．．．．．．．．．。
情态动词can 可用于肯定句中表示客观的(或理论的)可能性，而表示具体事情实际发生的可能性时， can 一般不用于肯定句。
Accidents can happen on such rainy days.在这样的多雨天气里可能会发生事故。
(表示客观的可能性) We may go to the cinema tonight, but we are not sure yet. 今晚我们可能去看电影，但还没确定。
情态动词的用法总结及例句解析
情态动词的用法总结及例句解析情态动词是英语中常用的一类动词，用来表示说话人的态度、情绪、推测、能力等。
它在句子中通常与动词原形搭配使用，起到强调、修饰或者推测的作用。
本文将对情态动词的用法进行总结，并通过例句解析来帮助读者更好地理解。
一、情态动词的基本用法情态动词通常没有人称和数的变化，也没有时态的变化，后面接动词原形。
有以下几种情态动词：can，could，may，might，shall，should，will，would，must，ought to等。
1. 表示能力或可能性- I can swim.（我会游泳。
）- He may come to the party.（他可能会来参加派对。
）2. 表示允许或禁止- You may go now.（你现在可以走了。
）- You must not smoke here.（你不能在这里抽烟。
）3. 表示建议或命令- You should take a break.（你应该休息一下。
）- You ought to apologize to him.（你应该向他道歉。
）4. 表示推测或猜测- He could be there.（他可能在那里。
）- It might rain tomorrow.（明天可能会下雨。
）5. 表示义务或必须- We must finish the project on time.（我们必须按时完成这个项目。
）- You ought to help him.（你应该帮助他。
）二、情态动词的细分用法除了以上的基本用法外，情态动词还有一些特殊的用法，需要注意其具体含义和用法。
1. can 和 could- 表示能力和技能：I can play the piano.（我会弹钢琴。
）- 表示请求或许可：Can I use your computer?（我可以用你的电脑吗？）- could 还可以用来表示过去的能力或许可：When I was young, I could run very fast.（小时候，我跑得很快。
语法篇专题情态动词和虚拟语气
用法
例句
can和could
表示能力
He can speak English better than you.
表示请求 或允诺?
You can have the book when I have finished it. Could you come again tomorrow?
表示客观可能性
should have done
过去本来应该……，而实际上没有……
The plant is dead. Maybe I should have given it more water.
ought to have done
过去本该……，而未……
You ought to have given him more help.
专题八 情态动词和虚拟语气
情态动词
一、情态动词 定义：情态动词是一种本身具有一定词义，但要与动词原形及其被动语态一起使用的词。它给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。 二、情态动词的特点 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加“not”。 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去，现在或将来。情态动词属于非及物动词，故没有被动语态。
三、情态动词的语法特征 (1） 情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。 (2） 情态动词除ought 和have 外，后面只能接不带to 的不定式。 (3） 情态动词没有人称和数的变化，即其第三人称单数不加s。 (4） 情态动词没有非限定形式，即没有不定式，分词形式，也没有相应的动名词。 四、情态动词的基本用法
英语语法情态动词详解
英语语法：情态动词详解情态动词有四类：①只做情态动词：must,can(could),may(might),ought to②可做情态动词又可做实义动词：need,dare③可做情态动词又可做助动词：shall(should),will(would)④具有情态动词特征：have(had,has) to,used to ,had better,would rather第一章、情态动词 can、may、must 的用法1. can 的用法(1) can 表示主语的能力＝be able to。
如：The hall can seat 1,000 people. 这个大厅能坐1 000人。
Can you play the piano? 你会弹钢琴吗？They will be able to tell you the news soon. 他很快就能告诉你消息了。
He was able to flee Europe before the war broke out. = He managed to flee Europe before the war broke out.他在战争爆发之前逃离欧洲。
(2) can 表示说话人的猜测（即可能性），多用于否定句和疑问句。
如：Can it be true? 这能是真的吗？The moon can't always be at the full. 月不可能总是圆的。
What can she mean? 她可能是什么意思呢？(3) can 表示请求许可。
如：Can you help me? (表示请求) This sort of thing can't go on. 这样的事不能再继续下去了。
You can't smoke here. 你不可在这里吸烟。
(4)“can + 完成式”表示说话人对过去情况的猜测（只用于否定和疑问结构中）。
如：He can't have missed the way.I explained the route carefully and drew him a map. 他不会迷路。
大学英语语法汇总
大学英语语法汇总在大学英语学习中，语法是学生们十分关注的重要方面。
掌握英语语法对于正确理解和运用英语至关重要。
本文将对大学英语常见的几个语法知识点进行汇总和讲解。
一、句子结构句子是表达完整意义的基本单位，包括主语、谓语、宾语等成分。
以下是常见的句子结构：1. 简单句：只包含一个主谓结构例句：She sings beautifully.（她唱得很好听。
）2. 复合句：由主句和从句构成例句：I will go to the park if it doesn't rain.（如果不下雨，我会去公园。
）3. 并列句：由并列连词（如and，but等）连接的两个或多个句子例句：He is studying for the final exam, but he is also preparing for his graduation ceremony.（他正在备考期末考试，同时也在准备毕业典礼。
）4. 疑问句：以疑问词（如what，where，how等）开头，用来询问信息例句：Where is the closest supermarket?（最近的超市在哪里？）二、时态和语态时态和语态是英语语法中常见的两个考点。
时态表示句子所描述事件发生的时间，而语态则表示句子中主语的作用。
1. 时态：- 现在时：表示现在正在发生或经常发生的动作例句：I am studying in the library.（我正在图书馆学习。
）- 过去时：表示过去某个时间发生的动作例句：She cooked dinner yesterday.（昨天她做了晚饭。
）- 将来时：表示将来某个时间将要发生的动作例句：We will have a meeting tomorrow afternoon.（明天下午我们将开会。
）2. 语态：- 主动语态：表示主语是动作的执行者例句：I clean the house every weekend.（我每个周末清扫房子。
情态动词英语语法知识精讲
情态动词英语语法知识精讲情态动词(modal verb)本身有词义，表示说话人的语气或情态，但词义不完全，不能单独用作谓语动词，一般只能和动词原形一起构成谓语动词。
小编在这里整理了相关资料，希望能帮助到您。
特征1)情态动词(modal verb)本身有词义，表示说话人的语气或情态，但词义不完全，不能单独用作谓语动词，一般只能和动词原形一起构成谓语动词。
2)情态动词所表示的情态有：命令、允诺、请求、拒绝、愿望、愿意、义务、必要、可能、能力、敢于、需要等。
3)情态动词(ought 除外)和助动词 shall，will，should，would 一样，后面的动词不定式一般皆不带。
形式变化1)没有人称和数的变化，第三人称单数的现在时也无变化。
如：I can We canYou can You canHeThey canShe canIt2)有些情态动词有过去式，有少数过去式和它的原形相同。
a)有过去式的情态动词有：may -- wouldcan ―― couldmay ― ― nigh tshall -- shouldhave to -- had tob)过去式不变的情态动词有：must - must (或 had to)ought to - ought toneed---needdare - dare(亦可用 dared)3)大多数情态动词后面可用动词的进行式、完成式和被动形式，如：can(may，must)be doing，can(may，must) have done，can(may，must)be done 等。
否定式情态动词和助动词一样，后面可直接跟否定词not。
现将情态动词的否定式及其否定式的简略式(简略式用于口语中)列举如下：shall not--shan't [FB:nt]will not---won't [wEunt]can not-can't [kB:nt]must not-mustn't [5mQsnt]should not-- shouldn'twould not-- wouldn'tcould not-- couldn'tdare not- daren't [dZEnt]need not-- needn't在疑问句中的用法情态动词在疑问句中的用法和助动词相同。
情态动词精讲(全)
情态动词精讲Modal Verbs情态动词是一种本身有一定的词义，但要与动词原形一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。
基本助动词与情态助动词（两种助动词）最主要的区别之一是，基本助动词本身没有词义，而情态助动词则有自己的词义，能表示说话人对有关动作或状态的看法，或表示主观设想。
牢记的两句话：肯定句中一定没有can have done的形式；Mustn’t have done无论如何都不存在。
可以表示虚拟的情态动词：could ,might, should, would, need可以表示推测的情态动词：could, might, should, must, may, can(否，疑)（虚拟与事实相反，推测与事实相一致）综述：情态动词表推测的用法小结（一）情态动词表推测的三种句式1.在肯定句中一般用must (一定)，may（可能），might / could（也许，或许）, should (按理说应该)；（1）He must/may/might know the answer to this question.他一定/可能/也许知道这个问题的答案。
（2）It is cold in the room. They must have turned off the heating.屋里很冷，他们肯定把暖气关了。
（3）It’s seven o’clock. Jack should/ought to be here at any moment.现在七点钟了，杰克理应随时到达。
（推测）2.否定句中用can’t / couldn’t(不可能), may not/might not(可能不)，shouldn’t (按理说应该不)；（1）It can’t/couldn’t be the headmaster. He has gone to America.这不可能是校长，他去美国了。
英语情态动词(完整版)含解析
英语情态动词(完整版)含解析一、选择题1．— Could you please clean your room?—_________. I’ll do it at once.A．Yes, sure B．Sorry, I can’t C．It doesn’t matter D．Here you are 2．—Jim seems to be in low spirits. ________?—No one liked his plan. All his efforts were useless.A．Guess what B．What about him C．So what D．What happened 3．—Here’s your change.—________A．My pleasure. B．Thank you. C．With pleasure. D．No problem. 4．—I plan to find a part-time job in the coming summer holiday.—________ It will be a totally different experience.A．See you later. B．You’d better not.C．I’m sorry to know that.D．That sounds like fun.5．—Oh, no! There isn't any salt left.—____________! I’ll buy some when I go into town.A．Good idea B．Go ahead C．Never mind D．Not at all6．—I thought I’d try to repair the car myself.— __________ ! You know nothing about the car.A．No way B．You can’t be serious C．I couldn’t agree more D．Don’t change a thing7．— I am so sorry to keep you waiting for such a long time.— ________.A．Please shut up B．It’s your m istake C．It doesn’t matter D．Don’t explain it 8．—It's a shame to ask you to lend me more money, but. . .— ______ . You really need money to keep on with your education.A．Don't be silly B．Forget it C．No way D．Don't mention it 9．—Amazingly, I've managed to finish the project by myself.—___________I told you it was easyA．With pleasure. B．Guess what? C．There you are! D．It doesn’t matter 10．--Would you like to go shopping with me on Saturday?-- . I have to help my mother with housework.A．I’m afra id not B．Take your timeC．Enjoy yourself D．That’s all right11．–This box is too heavy for me to carry upstairs.–__________A．You may ask for help B．I’ll give you a handC．Please do me a favor D．I’d come to help12．—I just got a message from Ms. Yang and she said she would come to our meeting this afternoon.— She always has good ideas.A．Why not? B．What a pity! C．Time is up. D．That’ll be very nice. 13．－Do you think the rain will stop tomorrow?－_____. It has rained for four days. It’s too wet everywhere.A．I hope not B．I don’t think soC．Don’t worry D．I hope so14．—I’m so sorry to keep you waiting for me so long.— ________!A．With pleasure. B．Don’t say so C．I don’t think so D．It doesn’t matter 15．—Would you please help me with my spoken English?—__________. First you should know practice makes perfect.A．That’s right B．No problem C．Quite well D．No, thanks 16．—Lucy, can you help me with my history?—________. I am good at it.A．With pleasure B．I’m afraid not C．Sorry, I can’t D．No way 17．—Sir, this is your order, two chicken hamburgers and a cup of coffee. ________—I’ll have them here.A．For here or to go? B．Something to drink? C．Anything else? D．Is that OK? 18．—I missed the basketball game last Saturday because I had an exam.—________, but it will be repeated on TV.A．Take it easy B．You are lucky C．That’s wonderful D．Never mind 19．—Why not take your son to watch the new film A Little Red Flower?—__________.A．Good idea B．No problem C．Good luck D．No way 20．—Do you like cartoons or scary movies?—_______. They can cheer me up.A．Yes, I do B．No, I don't C．Cartoons D．Scary movies 21．—I’m sorry I didn’t make it to your birthday party last night.— ________ I know you are busy recently.A．Why not? B．Don’t mention it.C．No way. D．That’s all ri ght. 22．—Excuse me, can you give me some water? The cup is empty.—________A．Go ahead. B．My pleasure C．At your service D．You’d better not. 23．—You seem so happy today, Jack.—________? I won the first prize in the singing competition yesterday.A．So what B．How come C．Guess what D．Why not 24．—I’m going hiking this afternoon. Would you like to go with me?—______, but I must finish my homework first.A．Sorry, I don’t B．That’s right C．I’d love to D．Not at all25．—I prefer western food. It’s delicious and goo d for us.—_______ ? But western food is said to be high in sugar and fat.A．Is that right B．How do you know thatC．Do you really think so D．Who told you that26．—Many people think women are better at cooking than men.—________. Most top chefs in the world are men.A．I agree B．I can’t agree more C．Not at all D．That’s not the case 27．—All of Mark Twain’s novels are popular.— ________. Especially The Adventures of Tom Sawyer.A．I can’t agree more B．That’s not the case C．That’s not the point D．Don’t mention it 28．—Could you help me look after my baby ________ I am away?—________.A．as; With pleasure B．while; My pleasure C．as; That’s all right D．while; With pleasure29．—Would you mind if I open the window?—_______.We need fresh air.A．Not at all B．Yes, of course C．You’d better not D．That’s all right 30．—Only those who have a lot in common can get along well.—________ Opposites sometimes attract.A．I think so. B．I don’t think so.C．I don’t care.D．I hope so. 31．—Only those who have a lot in common can get along well.—________. Opposites sometimes attract.A．I think so B．I don’t think so C．I don’t care D．I hope so 32．— Why will you take part in the charity walk? You are not good at running at all.— ________. I run to show that I can help others.A．Not exactly B．That’s not the point C．I can’t agree more D．It sounds like a pity 33．—Shall we go to the amusement park right away or the day after tomorrow?—________. Any time will do.A．Excuse me B．Have a good timeC．It’s up to you D．I’m afraid I can’t34．—How do you like coffee, Minnie?—It tastes very terrible. ________.A．I have no idea B．I don’t mind it C．I really can’t stand it D．I can’t afford it 35．— May I have a look at the newspaper China Daily?— Certainly. ________A．Thank you. B．It’s a pity.C．Here you are. D．I’d like to. 36．—________!—Yes. It sounds gentle and relaxing.A．How good the vegetable soup is B．How exciting the storybook isC．What nice music Ann is playing D．What a beautiful flower Jim keeps 37．—The game is too hard for me. I will certainly lose.—________. You should never say no before you try.A．Forget it! B．Come on! C．I’m sorry.D．Pardon me? 38．—I wonder if Tenny is doing well in her new school.—________. She is old enough to look after herself well.A．You’re welcome B．Good luck C．It’s a pity D．No need to worry 39．—Why don’t you join in a club to practise speaking English?—________.A．That’s a good idea B．Never mind C．Yes, please D．Thank you 40．—I’ll be away on a business trip. Would you mind looking after my cat?—Not at all. ________.A．It’s my pleasure B．I’d rather not.C．I’d like it.D．With pleasure. 41．— Wow, what a good smell! Can I have a piece of cake?— ________A．No way. B．Good idea! C．HeIp yourself. D．What a pity! 42．—Summer camping gives children the chance to live away from home.—________. It is always good to help children grow up.A．That’s true.B．Come this way. C．Let me have a look. D．I don’t think we agree.43．— Would you mind my turning on the TV? The New Year concert has just begun.— ________. Just go ahead.A．Ple ase don’t B．Better not C．Of course not D．I’m afraid not 44．—I visited the Purple Mountain Observatory by myself last Saturday.—________ Why didn’t you tell me earlier?A．You did? B．I hope not. C．Have a good time. D．I can’t believe it. 45．—Mum, Joe has broken a cup!—________. Accidents always happen.A．Pretty good B．Of course C．It doesn’t matter D．That depends 46．— The movie Lost in Russia sends a message about the importance of family.— ________. It reminds me of my parents.A．I hope so B．That’s all righ t C．You bet D．I don’t think so 47．— Are you feeling any better now after taking the medicine?—________. I’m feeling even worse.A．You got it B．Never mind C．Sorry to hear that D．Quite the opposite 48．—Another Friday! Let’s go to see the play tonight.—________ I will book the tickets online.A．My pleasure. B．That’s right.C．Why not? D．Never mind. 49．—Can I look at the menu for a few more minutes before I decide?—Of course. ________, Sir.A．Make yourself at home B．Enjoy yourself C．It doesn’t matterD．Take your time50．—How about putting some pictures into the report?—________ A picture is worth a thousand words.A．I don’t think so.B．Why not?C．Thank you. D．Don’t mention it.【参考答案】***试卷处理标记，请不要删除一、选择题1．A【解析】本题考查的是情景反应，要用客气婉转的回答方式。
高考英语情态动词全解析
情态动词与高考一、情态动词情态动词是一种本身有一定的词义，用来表示说话人的情感、态度或语气的动词。
但不能单独作谓语，只能和其他动词原形构成谓语。
情态动词在高考中主要考查四点：情态动词表示推测和可能性的用法；情态动词与虚拟语气；情态动词的表达―情感、态度、语气等‖，情态动词表示―必要性‖等方面的用法。
二、情态动词的特点1.没有人称和数的变化。
2.有些情态动词有过去式的变化: e.g. will → would , can → could , may→ might , dare → dared三、情态动词的否定形式情态动词+ not +动词原形can not: can't , must not: mustn't , need not : needn't四、情态动词的用法及相互间的区别（注意：这是常考的考点）1. can , could could 是can的过去式, 表示过去有能力及过去存在的可能性; 有时用于疑问句表示委婉地提出问题。
–Could I use your bike ?--Yes,you can.（1). 表示体力或脑力方面的能力; can’t 不能，表示没能力（2). 表示允许，can’t 表示禁止，不允许（3）表示可能性，can, could表达推测时，一般用于疑问句和否定句中；can/could have done 可能做了某事1).You ______ be hungry already — you had lunch only two hours ago!A. wouldn’tB. can’tC. mustn’tD. needn’t2).She ______ have left school, for her bike is still here.A. can’tB. wouldn’tC. shouldn’tD. needn’t（4）can用于肯定句中表示一种理论上的可能性，并不牵涉是否真的会发生，在这种用法中can只能与动词原形连用，译成“有时候会”；could用于肯定句中，语气比may/ might更弱。
英语高考语法解析课件：第7节 情态动词和虚拟语气
3．We would rather our daughter ________ (stay)at home with us，but it is her choice，and she is not a child any longer.
【答案】 stayed 4．If he ________(catch) the morning train，he would not have been late for the meeting. 【答案】 had caught
句 调整。
含蓄 条件
句
①有时假设的情况不用条件从句表达，而是用 but for，without等介词(短语)或上下文来表示条 件。②用连词otherwise，or等暗示后文与前面的 情况相反，从而引出后文的虚拟语气。③虚拟条 件通过but暗示出来，模式为“虚拟情况＋but＋ 真实情况”。
No Image
6．I still remember my happy childhood when my mother ________ take me to Disneyland at weekends.
【答案】 would 7．I've ordered some pizza，so we ________ worry about cooking when we get home tired. 【答案】 needn't 8．Since nobody gave him any help，he ________ have done the research on his own. 【答案】 must
3．—I've prepared all kinds of food for the picnic. —Do you mean we ________ bring anything with us? 【答案】 needn't 4．It was sad to me that they，so poor themselves，________ bring me food. 【答案】 should 5．Life is unpredictable；even the poorest ________ become the richest. 【答案】 might
英语：情态动词知识点归纳 及解析
英语：情态动词知识点归纳及解析一、选择题1．A lot of online resources ________ be used either by teachers at school or parents at home. A．can B．should C．need D．must2．Don’t cross the road until the traffic lights turn green. A car_______hit you.A．need B．may C．should D．must3．—Be careful! Fire ________ be dangerous sometimes.—OK. I will put it out right away.A．mustn’t B．should C．can D．needn’t4．—Will my car be ready by the end of the day?—It ________ be, sir. I’ll call if there’s any problem.A．must B．could C．shall D．should5．We shouldn’t throw any objects from the building. Even a small object ________ cause serious injuries or death, when dropped from a great height.A．must B．should C．may D．need6．—Dad, must we wait until the light becomes green?—Yes, I am afraid we ________. That’s the traffic rule.A．may B．can C．have to D．need7．—________ you give me a hand? I can’t put up the poster by myself.—No problem.A．Could B．Should C．Need D．Must 8．Exercise is helpful but it ________ be regular (规律的) exercise.A．must B．may C．can D．need9．— Excuse me, could you tell me where the Nanjing Brocade Museum is?—Go along this road for five minutes. You ________ miss it. It’s a huge building.A．mustn’t B．can’t C．needn’t D．shouldn’t 10．When you visit a museum, some instructions should ________ and we’d better not ________ them.A．pay attention to; be against B．be paid attention; againstC．be paid attention to; against D．be paid attention to; be against 11．—How do you like my new dress?—Well, if I ________ say, it is not suitable for you.A．may B．must C．have to D．should12．If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day. A．can’t B．mustn’t C．needn’t D．shouldn’t 13．The boy is very brave．I ________ he ________ the tall tree．A．dare say; dares to climbB．dare to say; dare climbingC．dare saying; dares climbD．dare to say; dares climbed14．When I was young, my father ___________ take me to climb the hill which was not far from our house.A．may B．must C．would D．should 15．—Shall we go camping this summer holiday?—Nothing________be better.A．should B．could C．must D．may16．My bike was broken yesterday，so I____walk home．A．might B．had to C．must D．could17．Dr. Zhong Nanshan once said, "To prevent the spread of this disease, we________never be too careful."A．can B．may C．must D．should18．—Will your mother be at home this Saturday?—Hard to say. She _______go to the countryside to see my grandparents.A．must B．may C．can D．would19．Think twice before making a decision, or you __________ get into trouble.A．may B．can't C．shouldn't D．mustn't20．You ________ write the report again because spelling mistakes are not allowed at all. A．must B．can C．may D．could21．Mr. Black ________ be at home now. He went abroad on vacation last Friday.A．can’t B．mustn’t C．needn’t D．should n’t22．We've discussed every detail of this plan and have got everything ready. But still something ________ go wrong. We still have to be very careful.A．must B．should C．would D．may23．Most young people like shopping online because they ________ spend much time going from shop to shop.A．needn’t B．can’t C．mustn’t D．shouldn’t 24．— Mum, why do I have to wash hands so many times a day?—You ________ be too careful, for your health.A．can’t B．mustn’t C．may not D．needn’t 25．—Will Jim come to Yangzhou for a holiday?—He ________come and it depends on how much homework he will have.A．may B．should C．must D．need26．—In China, many parents complain that their children have to stay up late to do the homework.—Don’t worry. The government has realized the problem. I’m sure there ________ be good news soon.A．can B．should C．need D．must27．When people are waiting at the zebra crossing, cars and buses ________ wait and let them go first.A．must B．may C．can D．need28．—Shall I tell him the change of the time right now?—I’m afraid you ________, otherwise he will be late for the meeting.A．can B．may C．must D．need 29．—There is a knock at the door.—It ________ be my mom. She always comes back home at this time.A．may B．may not C．must D．can’t30．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must31．— Listen! Tom ________ be listening to the music while doing his homework.—Let’s go upstairs to remind him to turn it off.A．should B．could C．would D．must 32．—Could you tell me how to renew the library books?—With pleasure. You ________ come to our desk every time. It’s easier to renew them online. A．can’t B．mustn’t C．needn’t D．shouldn’t 33．—How beautiful the winter jasmines (迎春花) are!—Yes. These golden-yellow flowers ________ be widely seen in my city in March.A．must B．can C．would D．should34．—I think they are enough. We ________ make so many chairs.—I don’t think so. Because nearly a quarter of them need ________.A．don’t need to; mending B．needed; to be mendedC．d on’t need; mend D．need; to mend35．—Who’s singing next door? Is it Miss Wang?—It ________ be her. She’s having the board meeting.A．can’t B．shouldn’t C．mustn’t D．needn’t 36．Sorry, smoking is not allowed here. If you ________ , you will be fined according to the rules. A．can B．will C．may D．must 37．—Could I join you in the programme?—Sorry, you ________. You are too young.A．shouldn’t B．mustn’t C．can’t D．needn’t 38．Hurry up, or we ________ miss the beginning of the film.A．should B．must C．may D．have to39．—I must go to school today, ________?—No, you ________.You can go as soon as you get well.A．mustn’t I;needn’t B．needn’t I;needn’tC．mustn’t I;mustn’t D．needn’t I;mustn’t40．—Seventy dollars for such a dress! You ________ be joking!—I’m serious. It’s made of silk from Hangzhou.A．must B．need C．will D．can【参考答案】一、选择题1．A解析：A【详解】句意：很多在线资源既可以供学校的老师使用，也可以供家长在家使用。
英语语法情态动词解析
英语语法情态动词解析
店铺：情态动词有什么地方需要我们多加留心才能不失分呢?下面我们一起看看这篇《情态动词解析》。
情态动词的全称是情态助动词，助动词则分为两种：基本助动词和情态助动词。
为什么要细分一下呢?因为它们是有区别的：
基本助动词有三个：be, have, do
情态动词有大约14个：may, might; can, could; will, would; shall, should;must, need, dare, used to, ought to. had better 构成时态或语态的助动词，提前或否定时出现的动词。
换句话说就是：助动词是当形式需要它的时候才出现，不该它出现就哪儿凉快哪儿呆着。
比如由于时态或语态的要求，比如疑问句或否定句的要求等等，需要它的时候才出现，不需要的时候并没它们什么事。
它们的区别：
1、每个情态动词都有基本意义，基本助动词则没有，只具有语法作用。
2、情态动词后面接原形动词，也就是秃头不定式;助动词要看时态或语态等等情况变化。
3、情态动词没有人称和数的变化，而助动词则有。
4、只有现在和过去两种形式，但可以表示过去、现在和将来时间。
5、情态动词没有非谓语动词形式，而助动词有。
公众号：英语语法教程。
高考英语最新情态动词知识点图文解析(3)
高考英语最新情态动词知识点图文解析(3)一、选择题1．(2018·天津) I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.A．should leave B．must have leftC．might leave D．could have left2．What a pity! Considering his ability and experience, he ___________ it better.A．need have done B．must have doneC．can have done D．might have done3．—Look at these tracks. It ________ be a wolf. I’m sure about it.—You are right! We have to be careful.A．may B．must C．can’t D．shouldn’t 4．—What do you think of your boss?—He is easy-going most of the time, but sometimes he ________ be hard on us.A．should B．might C．can D．must5．-Jenny took the 8：00 bus to Guangzhou this morning.-Really? He＿＿the 9:00 train. It's much more comfortable and safer to travel by train. A．could have taken B．should takeC．must have taken D．can take6．My computer ________ start this morning. There must have been something wrong with it. A．wouldn’t B．shouldn’t C．couldn’t D．mustn’t7．You ________ be Carol. You haven’t changed a bit after all these years.A．must B．can C．will D．shall8．--Is Jack still in hospital?--Yes. He _________ the bad food.A．wouldn’t eat B．shouldn’t eatC．wouldn’t have eaten D．shouldn’t have eaten9．I didn’t hear the phone. I ___ asleep.A．must be B．must have beenC．should be D．should have been10．Skills like critical thinking and analysis ________ be found on the Internet, because they must be acquired in the context of facts.A．can’t B．needn’t C．mustn’t D．shouldn’t 11．You ___________ a better mark, but you didn’t work hard.A．could have had B．would have had C．must have had D．must have 12．Tourists who enter the quiet area _____ obey the rule to reduce any potential effect on the environment.A．can B．may C．shall D．dare13．—You look so tired. You________ late last night.—Yes. I had to to do an important report and stayed up till I completed it.A．should sleep B．must sleepC．should have slept D．must have slept14．It was so noisy that we hear ourselves speak.A．couldn’t B．shouldn’tC．mustn’t D．needn’t15．I still remember my happy childhood when my mother ___________ take me to Disneyland at weekends.A．might B．mustC．would D．should16．The weather turned out to be fine yesterday. I ____________ the trouble to carry my umbrella with me.A．should have taken B．could have takenC．ne edn’t have taken D．mustn’t have taken17．—Do you know where David is? I couldn’t find him anywhere.— Well. He ________ have gone far — his coat is still here.A．shouldn’t B．mustn’t C．can’t D．wouldn’t 18．You _________ me about it earlier, but you didn't.A．should have told B．would have toldC．must have told D．should tell19．— Did Bob take the job in the supermarket? — No, but I think he _________.A．will have B．may have C．should have D．must have 20．—Can I inform my best friends of the result?—No, I want to keep it a secret . You ____tell anyone.A．won't B．don't have to C．mustn't D．don't need to21．I____________ go to a summer camp during the summer vacation, but I am not sure. A．might B．can C．must D．need22．Word that you _________ enjoy a three-day holiday has come if you do complete the task on time.A．may B．should C．could D．shall23．—Is there a holiday recently?—There_____ be. It has been informed that we will continue to study for another three weeks. A．won’t B．mustn’t C．may not D．can’t 24．—Sorry, Mum! I failed the job interview again.—Oh, it's too bad. You________ have made full preparations.A．must B．can C．would D．should 25．Although you ______ find bargains in London, it’s not generally a cheap place to shop. A．should B．need C．must D．can【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【详解】考查情态动词表推测。
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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。
情态动词的使用主要根据其所表达的含义。
解题时注意以下几点：
1）情态动词自身结构要正确
结构包括情态动词自身的搭配和其后的连带成分。
除ought外情态动词后接原形动词，测试中
常将不同结构的动词置于一起设干扰项，如①。
四个选项都与请求有关，但would
you mind后接动名词，一般说would you like to而不是will you like to，will you
please后用原形动词，答案是would you please?
2）注意情态动词推测性用法中各个情态动词使用的句型是否与题干句型一致。
在情态动词的推测性用法中，must, can, may, might, could各用于不同的句型，应注意分辨。
具
体使用规律为：
must只用于肯定句中。
can/could不能用语肯定句中。
may/might不能用语疑问句中。
另外还应注意can't表示"不可能"，may not表示"可能不"。
考试时，如果有原因说明自己的猜测，一般应该must, can't用而不是may, may not。
如：
He can't have stolen the money; he is not such kind of person.
Some pleasant thing must have happened to him. He is so excited.
3）注意推测性用法中谓语动词发生的时间。
如果推测的为过去的事情，情态动词后则用完成形式。
There must have been no one in, for nobody answered the phone.
如果推测的是正在进行的事情，情态动词后则用动词的进行形式。
They must be talking about something very secret.
如果推测的是现在的状态等，情态动词后则用原形动词
He must be badly ill. He looks so pale.
如果推测的是将来发生的事情，情态动词后同样用原形动词，这时，情态动词只能是may/might。
There may be a terrible storm in the following few days.
4）注意"情态动词+动词的完成形式"所表达的意思与题干意思是否相符。
其它"情态动词+ 动词的完成形式"并不表示推测，而分别表示：
could have done本来能够
He didn't take part in the competition, he _______ though.
A. won
B. didn't win
C. could win
D. could have won
needn't have done 本来没不要
You ________. There was plenty of time.
A. needn't hurry
B. can't hurry
C. mustn't have hurried
D. needn't have hurried
should/ought to have done 本来应该
You _______ me earlier. I could have helped you.
A. should tell me
B. should have told
C. need to tell
D. needn't have told
shouldn't/oughtn't to have done 本来不应该
You ____ him so closely; you should have kept your distance.
A. shouldn't follow
B. mustn't follow (2000.6)
C. couldn't have been following
D. shouldn't have been following
might have done 本来应该（用来表示一种责备）
You ______ even though you were busy at that time.
A. might help him
B. must have helped him
C. might have helped him
D. should help him
这类题在设计干扰项时，一般都会有情态动词推测性用法的涉及，同学们应注意分词上下文的
逻辑和语意关系。
5）注意常用情态动词的基本句法和表意功能
其它常用动词的用法，如shall表示"命令"、"威胁"、"许诺"或征求许可，may/might as well等，同学们都应多多注意其用法。
返回。