高考英语语法【情态动词】易错点30题精讲练解析版
专题九 情态动词易错点集锦
情态动词本身有一定的词义，但需和其他动词一起构成谓语，除ought, used外，情态动词后面接动词原形。情态动词中have to可以用have got to 代替；need,dare也可用实意动词；used to 有两种否定形式：used not to和did not use to.
can, could 表示具有某种能力，指有能力做某事 He could swim when he was five. By the age of seven he could write beautifully.
表示请求和允许，和may相近； 口语中可用could表示委婉语 气，但回答时仍用can －Could/Can I use your pen －Yes,of course you can. Could I ask for your reaction to this policy
表示推测，常用于否定句和疑问句中 Mike can't have found his car, for he came to work by bus this morning I think the work can be completed ahead of time.
表示“有时也会” It can be quite windy there, especially in spring.
cannot but do sth.表示“只好，不得不” Father cannot but agree with his daughter's opinion.
can't help doing sth. 表示“禁不住做某事” I can't help feeling sorry for the poor man. The film is so impressive that we can't help crying.
be able to be able to 可以有多种时态，如：将来时（will be able to), 完成时（have/has/had been able to) I will be able to speak French in another few months. I have been able to swim since I was 5.
be able to 侧重通过努力成功做成某事的能力 He said he could swim across the river. (指本身具有这种能力） At last he was able to swim across the river. (指通过努力做到了）
may, might 表示允许、许可或征求允许，否定回答时要用 mustn't; might 比may 语气委婉 －Might/May I smoke in this room －No, you mustn't. －May/Might I take this book out of the room －Yes, you can. (No, you mustn't.)
表示可能性，might比may可能性更小 I think the trip may give me time to calm down. An active volcano may explode at any time. Don't go too far afield or we might lose you.
may/might as well do sth.“不妨做某事，还是做某事为好” Everything is ready. We might as well start now.
will, would 表示意志、决心或愿望 We will do our best to save the child. I told her to stop crying, but she just wouldn't listen.
用于第二人称，表示请求、建议等 Will/Would you please post the letter for me Won't you take off your coat
will表示“总是，惯于”；would表示过去的习惯，意为“过去常常” When he was a child, he would often go skiing. He would sit there for hours sometimes doing nothing at all.
表示推测或猜想 This will be the house you're looking for. I think he would accept the invitation.
shall 用于第一、人称的疑问句中，表示征求对方的意见或请示 Shall I clean the desks one by one
用于第二、人称的陈述句，表示说话者的命令告、许诺等语气 He shall return that book tom I shall think it over and let you know my idea. You shall fail if you don't work harder.(警告）
用于第三人称，在条约、规定、法令等文件中表示义务或规定，意为“应该，必须” Candidates shall remain in their seats until all the papers have been collected. Persons under 18 shall not be employed in night work.
should, ought to 表示“应该”，用于表示现在或将来的责任或义务：还可表示推测，指有一定依据的推测 We should/ought to help each other and learn from each other in our work. We ought to go and see Mary tomorrow, but I don't think we will. It ought to be a fine day tomorrow morning.
should 还可表示惊讶，意为“竟会，居然” It's strange that he should be absent. It seems unfair that this should happen to me.
must, have to must 强调主观看法，表示“必 须”，have to 强调客观需要，意为“不得不” Yesterday morning I told my father that I must call on a friend. You have to wear uniform on duty, don't you
must表示“偏要，非得”等含义，这种用法常用于疑问句、条件句中 Must you waste so much time Must you make so much noise Why must you always interrupt me We were ready to leave, but the baby must catch cold.
mustn't意为“不许，禁止”；若表示“没有必要，不必”时，用needn't或 don't have to That car is my property;you mustn't use it without my permission. You mustn't drive into a street with a“No Entry"sign. You needn't talk to anyone if you don't want to. You don't have to worry about me. I'm a good swimmer.
must 表示推测时，仅用于肯定句，但在反意疑问句中，其后面反问部分取决于must后面的动 词形式 You must be a newcomer, aren't you She must have been very young when she got married. It must be your mother who you are thinking of.
need 表示“需要，必须”，常用于疑问句和否定句中；肯定回答用must, 否定回答用needn't You needn't have the bike repaired right away.n －Need I go back to Xiamen after I visited Fuzhou －Yes, you must./No, you needn't.
dare 主要用于否定句、疑问句以及条件句中，有过去式形式dared －Dare she tell him what she thinks about him －She daren't say anything.He will only shout at her. "How dare you speak to me like that "
used to “过去常常”，含有今昔对比的意味，表示过去习惯的动作或状态现在已结束，而 would表示过去反复发生的动作，但不含对比意味。 He used to get up at six every morning. He would get up at six every morning and had a walk in the forest then.
had better would better had better/would better 表示“最好···” would better 还可表示“宁愿，宁可” You had better go to the factory and have a look. I would better die before asking him for help.
情态动词＋have done must have done 用在肯定句中，表示对过去情况的肯定推测，语气坚定 It must have rained last night, for the road is wet. Tom must have taken your dictionary by mistake.
can't have done 表示对过去情况表示否定的推测，是 must have done的否定形式 Mr.Smith can't have gone to Beijing, for I saw him in the library just now. Mary can't have stolen your money. She has gone home.
could have done 用于肯定句，表示过去本能完成某事但事实上并没有完成，意为“本来能够做” He could have passed the exam, but he was too careless. He could have bought the car, but soon his company went bankrupt.
may/might have done 表示过去可能发生某事，意为“可能······, 或许······”；might have done还可表示“本可能做某事” －What has happened to George －I don't know. He may have got lost. She might have achieved greater progress, if you had given her more chances.
should have done 表示“过去本应该做某事而没有做” Tom, you are too lazy. The work should have been finished yesterday. If I knew she was short of money, I should have lent her some.
shouldn't have done sth.表示“过去本不该做某事而实际上做了” Look, Tom is crying, I shouldn't have been so harsh on him. I don't think you have changed at all! Xiao Li shouldn't ave failed recognize you.
needn't have done 表示“过去本没有必要做某事而实际上做了” I needn't have bought so much wine-only five people came. As you worked late yesterday, you needn't have come this morning.
高考英语语法【情态动词】易错点对点训练30题
I.高考真题诊断·单句语法填空
1. I can't find my purse. I_______have left it in the supermarket yesterday, but I'm not sure.
2.In today's information age, the loss of data_______ cause serious problems for a company.
3. My room is a mess, but I _______ clean it before I go out tonight. I can do it in the morning.
4. George _______（go)too far. His coffee is still warm.
5. I needn't_______（worry)before I came to the new school,for my classmates here are very friendly to me.
【答案详解】
1. could/might/may 解析：句意：我找不到我的钱包了。我可能昨天把它落在超市了，但我不确定。空处表示对过去事情的推测，且根据题干中的I'm not sure 可推知，此处表示不确定的推测，故用could/might/may意为“可能”。
2. can 解析：句意：在当今这个信息时代，对于一个公司来说，数据的丢失可能会造成严重的后果。根据句意可知，语境要体现的是一种客观的可能性，且cause 为动词原形，因此can符合语境。
3. needn't 解析：句意：我的房间很乱，但是在今晚我出去之前不需要打扫，我可以明天早晨再打扫。needn't意为“不需要，不必”。
4. can't have gone 解析：句意：乔治不可能走太远，他的咖啡仍是温的。can't have gone 意为
不可能走（远）”，是对过去情况的否定推测，符合语境。
5. have worried 解析：句意：我来新学校之前本没有必要担心的，因为在这里我的同学对我非常友好。needn't have done 意为“本没有必要做某事而实际上已经做了”。
II.精选典题情态动词专题对点训练·单句语法填空
6.If the new safety system (bring) into use, the accident would never have happened.
7.When you phoned me, I was having a meeting; how I wish I (answer) your call.
8.As the deadline is drawing near, no one leave with his own work uncompleted.
9.The order came that the medical supplies (send) to the earthquake stricken area soon.
10.It is high time that you (consider) that if there were no stress in your life, you would achieve a little.
11.I was ill that day, otherwise I (take) part in the sports meet.
12. —I (not) thank you enough for what you have done for me.
—You’re welcome.
13.Harry is feeling uncomfortable. He have drunk too much at the party last night.
14.John wants to see me now, but I have so much work on hand that I would rather he (come) tomorrow than today.
15.As Father and Mother thought it was a big occasion for me, they suggested I (hold) a birthday party at home to celebrate it.
【答案详解】
6.had been brought 解析：句意：如果新的安全系统已经投入使用，事故就不会发生了。根据句意、句子结构以及主句中的would never have happened可知，句中If引导的是虚拟条件句，且表示与过去的事实相反的假设，故从句时态应用过去完成时。
7.had answered 解析：句意：当你给我打电话的时候，我正在开会。我多么希望我(之前)接了你的电话。wish后的从句中用虚拟语气，根据句意可知是对过去情况的虚拟，所以谓语动词用had done形式。
8.shall 解析：句意：因为截止日期即将到来，不完成工作，任何人不许离开。shall用于第三人称陈述句中，表示命令、警告，符合句意。
9.(should) be sent 解析：表示建议、要求、命令等名词，如：suggestion, order, request, advice等后接的表语从句、同位语从句中谓语动词用(should＋)动词原形。
10.considered/should consider 解析：在It is high time that...句式中，从句用虚拟语气，即：谓语动词用过去式或should＋动词原形。
11.would have taken 解析：句意：那天我病了，否则我就参加运动会了。根据语境可推知，设空处为与过去事实相反的虚拟语气，故答案为would have taken。
12.can’t 解析：句意：——你为我做的一切我无论怎么感谢都不为过。——不用谢。can not...enough表示“再……也不为过”。
13.must 解析：句意：Harry觉得不舒服，他昨晚在聚会上肯定喝太多了。由last night及语境可知，此处表示对过去的肯定情况把握较大的推测。must have done sth.“一定做了某事”。
14.came 解析：句意：约翰现在想看我，但是我手头有很多工作要做，我宁愿他明天来而不是今天。would rather后面接从句，用虚拟语气，和现在或将来相反用一般过去式，和过去相反用过去完成时，故填came。
15.(should) hold 解析：suggest表示“建议”时后面宾语从句的谓语动词应用(should＋)动词原形，故填(should) hold。
III.精选典题情态动词专题对点训练·单句改错
16.Whenever I made mistakes and felt discouraged, my teacher and my classmates would help me figure out how I must have avoided them.
17.We needn’t to do so much homework. Therefore, we have more time for after school activities.
18.In my opinion, by doing part time jobs, college students must gain some social experience and broaden their outlooks.
19.When I got the papers, I realized that things would be better if I listened to the teacher attentively.
20.When you walk into the gallery, you feel as if you are inside a fragile, white seashell.
【答案详解】
16.must→could 解析：根据语境可知，该句表示“过去本能够做但却未做”，故用could have done。
17.去掉to 解析：need可作实义动词，有时态和数的变化；也可作情态动词，后接动词原形。根据needn’t可知，need在此为情态动词，后接动词原形。
18.must→can 解析：根据语境可知，此处表示通过做业余工作能够获得社会经验，而不是一定获得。
19.在listened前加had 解析：根据语境和主句中的谓语realized可知，if引导的条件状语从句所叙述的事情与过去的事实相反，应用虚拟语气，故if条件状语从句的谓语动词应用过去完成时。
20.are→were 解析：as if后接表语从句，根据句意“你感觉自己像是身处于一枚易碎的白色贝壳之内”可知，此处是对现在事实的虚拟，从句应用一般过去时。
IV.精选典题情态动词专题对点训练·短文语法填空
Tom: Hi,Mr Smith. 21. you give me a hand
Mr. Smith: Of course.You 22. hesitate to ask me for help.What's the matter with you
Tom: My mum is always complaining about my going back home late after school.
Mr. Smith: What do you usually do after school
Tom: I usually go to the playground to play basketball.But I know that I 23. go home first.
Mr. Smith:Why don't you go home directly
Tom: My mother usually says:"Every student 24. do their homework first after school,and that is
a rule for all of you students".You see,if I 25. (do)my homework first now,I couldn't have a rest and
relax.I am so tired.
Mr.Smith: Both you and your mum are reasonable.As a mother,she believes that you 26. never
work too hard,while you think you need some time to have a rest.Does your mother know what you think
Tom: No.Even if I 27. (tell)her before,she wouldn't have understood it.
Mr.Smith: I don't think you are right.I think you should tell your mother what you think and she would understand
you. Besides,you had better not hide your feelings from your mother and you 28. as well learn to
communicate with her.
Tom: Thank you for your advice.It is high time I 29. (talk)with her.
Mr.Smith: I 30. agree more.
【语篇解读】本文为汤姆和史密斯老师就汤姆的妈妈抱怨他放学后不按时回家而进行的对话。
21.Can 解析：can 在这里表示请求帮助，意为“能”。
22.needn't 解析：本句句意：你向我求助时不必犹豫。needn't不必。
23.should 解析：句意：但是我知道我应该先回家。should应该。
24.shall 解析：shall 与第二、三人称连用，用于陈述句中时，可用来介绍法规、规定的内容。
25.did 解析：根据上下文逻辑及后面句子中的 couldn't have a rest,可知设空处为与现在事实相反的虚拟语气，故答案为did.
26.can 解析：“cannot(can never)..too+形容词或副词”表示：“再······也不为过”。
27.had told 解析：根据上下文逻辑及后面的“wouldn't have understood”，可知设空处为与过去事实相反的假设，故答案为 had told.
28.might 解析：might as well do sth.意为：还是做。·····为好。
29.talked 解析：由It is high time sb.did sth.可知填 talked.
30.can't 解析： I can't agree more.我完全同意。高考英语语法【情态动词】易错点30题精讲练原题版
专题九 情态动词易错点集锦
情态动词本身有一定的词义，但需和其他动词一起构成谓语，除ought, used外，情态动词后面接动词原形。情态动词中have to可以用have got to 代替；need,dare也可用实意动词；used to 有两种否定形式：used not to和did not use to.
can, could 表示具有某种能力，指有能力做某事 He could swim when he was five. By the age of seven he could write beautifully.
表示请求和允许，和may相近； 口语中可用could表示委婉语 气，但回答时仍用can －Could/Can I use your pen －Yes,of course you can. Could I ask for your reaction to this policy
表示推测，常用于否定句和疑问句中 Mike can't have found his car, for he came to work by bus this morning I think the work can be completed ahead of time.
表示“有时也会” It can be quite windy there, especially in spring.
cannot but do sth.表示“只好，不得不” Father cannot but agree with his daughter's opinion.
can't help doing sth. 表示“禁不住做某事” I can't help feeling sorry for the poor man. The film is so impressive that we can't help crying.
be able to be able to 可以有多种时态，如：将来时（will be able to), 完成时（have/has/had been able to) I will be able to speak French in another few months. I have been able to swim since I was 5.
be able to 侧重通过努力成功做成某事的能力 He said he could swim across the river. (指本身具有这种能力） At last he was able to swim across the river. (指通过努力做到了）
may, might 表示允许、许可或征求允许，否定回答时要用 mustn't; might 比may 语气委婉 －Might/May I smoke in this room －No, you mustn't. －May/Might I take this book out of the room －Yes, you can. (No, you mustn't.)
表示可能性，might比may可能性更小 I think the trip may give me time to calm down. An active volcano may explode at any time. Don't go too far afield or we might lose you.
may/might as well do sth.“不妨做某事，还是做某事为好” Everything is ready. We might as well start now.
will, would 表示意志、决心或愿望 We will do our best to save the child. I told her to stop crying, but she just wouldn't listen.
用于第二人称，表示请求、建议等 Will/Would you please post the letter for me Won't you take off your coat
will表示“总是，惯于”；would表示过去的习惯，意为“过去常常” When he was a child, he would often go skiing. He would sit there for hours sometimes doing nothing at all.
表示推测或猜想 This will be the house you're looking for. I think he would accept the invitation.
shall 用于第一、人称的疑问句中，表示征求对方的意见或请示 Shall I clean the desks one by one
用于第二、人称的陈述句，表示说话者的命令告、许诺等语气 He shall return that book tom I shall think it over and let you know my idea. You shall fail if you don't work harder.(警告）
用于第三人称，在条约、规定、法令等文件中表示义务或规定，意为“应该，必须” Candidates shall remain in their seats until all the papers have been collected. Persons under 18 shall not be employed in night work.
should, ought to 表示“应该”，用于表示现在或将来的责任或义务：还可表示推测，指有一定依据的推测 We should/ought to help each other and learn from each other in our work. We ought to go and see Mary tomorrow, but I don't think we will. It ought to be a fine day tomorrow morning.
should 还可表示惊讶，意为“竟会，居然” It's strange that he should be absent. It seems unfair that this should happen to me.
must, have to must 强调主观看法，表示“必 须”，have to 强调客观需要，意为“不得不” Yesterday morning I told my father that I must call on a friend. You have to wear uniform on duty, don't you
must表示“偏要，非得”等含义，这种用法常用于疑问句、条件句中 Must you waste so much time Must you make so much noise Why must you always interrupt me We were ready to leave, but the baby must catch cold.
mustn't意为“不许，禁止”；若表示“没有必要，不必”时，用needn't或 don't have to That car is my property;you mustn't use it without my permission. You mustn't drive into a street with a“No Entry"sign. You needn't talk to anyone if you don't want to. You don't have to worry about me. I'm a good swimmer.
must 表示推测时，仅用于肯定句，但在反意疑问句中，其后面反问部分取决于must后面的动 词形式 You must be a newcomer, aren't you She must have been very young when she got married. It must be your mother who you are thinking of.
need 表示“需要，必须”，常用于疑问句和否定句中；肯定回答用must, 否定回答用needn't You needn't have the bike repaired right away.n －Need I go back to Xiamen after I visited Fuzhou －Yes, you must./No, you needn't.
dare 主要用于否定句、疑问句以及条件句中，有过去式形式dared －Dare she tell him what she thinks about him －She daren't say anything.He will only shout at her. "How dare you speak to me like that "
used to “过去常常”，含有今昔对比的意味，表示过去习惯的动作或状态现在已结束，而 would表示过去反复发生的动作，但不含对比意味。 He used to get up at six every morning. He would get up at six every morning and had a walk in the forest then.
had better would better had better/would better 表示“最好···” would better 还可表示“宁愿，宁可” You had better go to the factory and have a look. I would better die before asking him for help.
情态动词＋have done must have done 用在肯定句中，表示对过去情况的肯定推测，语气坚定 It must have rained last night, for the road is wet. Tom must have taken your dictionary by mistake.
can't have done 表示对过去情况表示否定的推测，是 must have done的否定形式 Mr.Smith can't have gone to Beijing, for I saw him in the library just now. Mary can't have stolen your money. She has gone home.
could have done 用于肯定句，表示过去本能完成某事但事实上并没有完成，意为“本来能够做” He could have passed the exam, but he was too careless. He could have bought the car, but soon his company went bankrupt.
may/might have done 表示过去可能发生某事，意为“可能······, 或许······”；might have done还可表示“本可能做某事” －What has happened to George －I don't know. He may have got lost. She might have achieved greater progress, if you had given her more chances.
should have done 表示“过去本应该做某事而没有做” Tom, you are too lazy. The work should have been finished yesterday. If I knew she was short of money, I should have lent her some.
shouldn't have done sth.表示“过去本不该做某事而实际上做了” Look, Tom is crying, I shouldn't have been so harsh on him. I don't think you have changed at all! Xiao Li shouldn't ave failed recognize you.
needn't have done 表示“过去本没有必要做某事而实际上做了” I needn't have bought so much wine-only five people came. As you worked late yesterday, you needn't have come this morning.
高考英语语法【情态动词】易错点对点训练30题
I.高考真题诊断·单句语法填空
1. I can't find my purse. I_______have left it in the supermarket yesterday, but I'm not sure.
2.In today's information age, the loss of data_______ cause serious problems for a company.
3. My room is a mess, but I _______ clean it before I go out tonight. I can do it in the morning.
4. George _______（go)too far. His coffee is still warm.
5. I needn't_______（worry)before I came to the new school,for my classmates here are very friendly to me.
II.精选典题情态动词专题对点训练·单句语法填空
6.If the new safety system (bring) into use, the accident would never have happened.
7.When you phoned me, I was having a meeting; how I wish I (answer) your call.
8.As the deadline is drawing near, no one leave with his own work uncompleted.
9.The order came that the medical supplies (send) to the earthquake stricken area soon.
10.It is high time that you (consider) that if there were no stress in your life, you would achieve a little.
11.I was ill that day, otherwise I (take) part in the sports meet.
12. —I (not) thank you enough for what you have done for me.
—You’re welcome.
13.Harry is feeling uncomfortable. He have drunk too much at the party last night.
14.John wants to see me now, but I have so much work on hand that I would rather he (come) tomorrow than today.
15.As Father and Mother thought it was a big occasion for me, they suggested I (hold) a birthday party at home to celebrate it.
III.精选典题情态动词专题对点训练·单句改错
16.Whenever I made mistakes and felt discouraged, my teacher and my classmates would help me figure out how I must have avoided them.
17.We needn’t to do so much homework. Therefore, we have more time for after school activities.
18.In my opinion, by doing part time jobs, college students must gain some social experience and broaden their outlooks.
19.When I got the papers, I realized that things would be better if I listened to the teacher attentively.
20.When you walk into the gallery, you feel as if you are inside a fragile, white seashell.
IV.精选典题情态动词专题对点训练·短文语法填空
Tom: Hi,Mr Smith. 21. you give me a hand
Mr. Smith: Of course.You 22. hesitate to ask me for help.What's the matter with you
Tom: My mum is always complaining about my going back home late after school.
Mr. Smith: What do you usually do after school
Tom: I usually go to the playground to play basketball.But I know that I 23. go home first.
Mr. Smith:Why don't you go home directly
Tom: My mother usually says:"Every student 24. do their homework first after school,and that is
a rule for all of you students".You see,if I 25. (do)my homework first now,I couldn't have a rest and
relax.I am so tired.
Mr.Smith: Both you and your mum are reasonable.As a mother,she believes that you 26. never
work too hard,while you think you need some time to have a rest.Does your mother know what you think
Tom: No.Even if I 27. (tell)her before,she wouldn't have understood it.
Mr.Smith: I don't think you are right.I think you should tell your mother what you think and she would understand
you. Besides,you had better not hide your feelings from your mother and you 28. as well learn to
communicate with her.
Tom: Thank you for your advice.It is high time I 29. (talk)with her.
Mr.Smith: I 30. agree more.
