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2025-2026学年一线教师制作新教材英语核心题型讲通练透系列资料,名师甄选!
2025-2026学年一线教师制作新教材英语核心题型讲通练透系列资料,名师甄选!
学校:___________姓名:___________班级:___________考号:___________
Unit 3 What makes a great team
单元Grammar:情态动词(一)易错题精练60题
语
法
精
讲
初中高频情态动词(can/must/should/need/have to/had better)
考点 1:情态动词 can
基本含义:①能;会(表能力) ②可以(表许可) ③可能(表推测,用于否定 / 疑问句)
句式结构:主语 + can + 动词原形;否定式 can't;疑问式 Can + 主语 + 动词原形?
特殊用法:can't help doing sth. 情不自禁做某事
考点例句:①I can speak English.(能力) ②Can I use your pen?(许可) ③It can't be his book.(推测)
考点 2:情态动词 must
基本含义:①必须;一定(表义务 / 肯定推测,语气最强) ②禁止(mustn't,表强烈否定)
句式结构:主语 + must + 动词原形;否定式 mustn't(禁止)/don't have to(不必);疑问式 Must + 主语 + 动词原形?
问答搭配:Must I...? ——Yes, you must. / No, you don't have to./you needn't.
考点例句:①You must finish your homework first.(义务) ②He must be at home.(推测) ③You mustn't cross the road.(禁止)
考点 3:情态动词 should
基本含义:①应该;应当(表建议 / 责任 / 义务,语气委婉) ②竟然(表惊讶,特殊用法)
句式结构:主语 + should + 动词原形;否定式 shouldn't;疑问式 Should + 主语 + 动词原形?
核心用法:提建议(最高频),可与 Why not.../You'd better... 互换
考点例句:①You should exercise every day.(建议) ②We shouldn't be late for school.(否定建议)
考点 4:情态动词 need
双重属性:情态动词/实义动词(考点核心)
「情态动词」用法:
含义:需要(多用于否定 / 疑问句)
结构:need + 动词原形;否定式 needn't;疑问式 Need + 主语 + 动词原形?
「实义动词」用法:
含义:需要(可用于肯定 / 否定 / 疑问句,有人称 / 时态变化)
结构:need to do sth.;否定式 don't/doesn't need to do;疑问式 Do/Does + 主语 + need to do?
考点例句:①Need I go now?(情态) ②You needn't worry.(情态) ③I need to buy a new pen.(实义)
考点 5:情态动词 have to
基本含义:不得不;必须(表客观需要 / 外界强迫,区别于 must 的主观意愿)
句式结构:有人称 / 时态变化,后接动词原形
一般现在时:I/you/we/they have to;he/she/it has to
否定式:don't/doesn't have to;疑问式:Do/Does + 主语 + have to...?
过去时:had to(否定:didn't have to)
与 must 区别:must(主观必须);have to(客观不得不)
考点例句:①It's rainy, I have to take an umbrella.(客观) ②He had to get up early yesterday.(过去时)
考点 6:情态动词 had better
基本含义:最好(表建议,语气比 should 更强烈,表 “劝告 / 叮嘱”)
句式结构:主语 + had better + 动词原形(had 无人称变化,可缩写为 'd better)
否定式:had better not + 动词原形(注意:无 had bettern't 形式)
特殊点:无疑问式,多用于口语化建议
考点例句:①You'd better go to bed early.(肯定建议) ②We had better not play computer games too much.(否定建议)
通用核心规律
1.后接动词原形,无人称 / 数的变化(have to/need 实义动词除外)
2.否定式:直接在情态动词后加not(had better/have to 特殊)
3.疑问式:将情态动词提前至句首(have to/need 实义动词用助动词)
4.表推测:can(否 / 疑)、must(肯定,语气最强)
语
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精
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一、单项选择
1.You’d better ________ more water if you have a fever.
A.drink B.drinking C.to drink D.drank
【答案】A
【详解】句意:如果你发烧了,你最好多喝水。
考查had better的用法。drink喝,动词原形;drinking喝,动名词;to drink喝,动词不定式;drank喝,过去式;根据“You’d better…more water”可知,had better后接动词原形。故选A。
2.—I can’t give up smoking, Doctor Frank.
—For your health, I’m afraid you ________.
A.may B.can C.have to D.might
【答案】C
【详解】句意:——我戒不了烟,弗兰克医生。——为了你的健康,恐怕你不得不这么做。
考查情态动词的用法。may可能;can能够;have to必须,不得不;might或许。根据“For your health, I’m afraid you...”可知医生建议对方“必须”戒烟,强调必要性。故选C。
3.If you live near the shopping mall, you ________ go far to buy things.
A.have to B.don’t have to C.haven’t to D.needn’t to
【答案】B
【详解】句意:如果你住在购物中心附近,你不必走很远去买东西。
考查情态动词用法。have to必须;don’t have to不必;haven’t to和 needn’t to为错误表达。根据句意,住在购物中心附近的人不需要走很远,因此应选择表示“不必”的选项。故选B。
4.—Why didn’t you go to the party last night?
—Because I ________ finish my homework first.
A.had to B.could C.might D.would
【答案】A
【详解】句意:——你昨晚为什么没去参加派对?——因为我必须先完成我的家庭作业。
考查情态动词的用法。had to不得不;could能够;might可能;would将会。根据“Because I...finish my homework first.”可知,此处表示不得不先完成作业。故选A。
5.—Did you go to Linda’s birthday party yesterday?
—I didn’t go to her birthday party because I had to ________ an important meeting.
A.attended B.attend C.attending D.attends
【答案】B
【详解】句意:——你昨天去参加琳达的生日聚会了吗?——我没有去她的生日聚会,因为我不得不参加一个重要的会议。
考查情态动词用法。attended是过去式;attend是动词原形;attending是现在分词/动名词;attends是第三人称单数形式。had to的原形为have to,意为 “不得不”,后接动词原形。所以这里要用attend。故选B。
6.Dogs ________ run through the streets. It’s too dangerous!
A.should B.shouldn’t C.need D.needn’t
【答案】B
【详解】句意:狗不应该在街上乱跑。这太危险了!
考查情态动词辨析。should应该;shouldn’t不应该;need需要;needn’t不必。根据“It’s too dangerous!”可知,在街上乱跑很危险,所以狗“不应该”这样做。故选B。
7.— ________ I take some medicine?
— Yes, you should.
A.Should B.Can C.Must D.Need
【答案】A
【详解】句意:——我应该吃点药吗?——是的,你应该。
考查情态动词辨析。Should应该;Can能,可以;Must必须;Need需要。根据答语“Yes, you should.”可知,问句是在询问是否“应该”吃药,且答句用should回应,因此问句也应用should提问。故选A。
8.—Must we put away all the workbooks right now?
—No, you________. You can do it after school.
A.shouldn’t B.needn’t C.mustn’t D.can’t
【答案】B
【详解】句意:——我们必须现在就把所有的练习册收拾好吗? ——不,你们不必。你们可以放学后再做。
考查情态动词用法。shouldn’t不应该;needn’t不必;mustn’t禁止,不允许;can’t不能。根据“Must we…”可知,此处是对必须做某事的询问。在回答以Must开头的一般疑问句时,肯定回答用“Yes, you must.”;否定回答通常用“No, you needn’t/No, you don’t have to.”。根据“No, you…”可知,此处是否定回答。故选B。
9.Hey, Nora, I want to write about my best friend Jenny for the class booklet. ________ you help me?
A.Can B.Must C.Should D.May
【答案】A
【详解】句意:嘿,诺拉,我想为班级小册子写我最好的朋友珍妮。你能帮我吗?
考查情态动词辨析。Can能,可以;Must必须;Should应该;May可能,可以(通常用于第一人称疑问句中表示请求许可)。根据语境可知,此处是在向诺拉提出请求,询问对方能否帮助自己,所以应该用Can。故选A。
10.—Can you come to my birthday party on Saturday?
—Sorry, I ________. I have to visit my grandparents.
A.can’t B.mustn’t C.needn’t D.shouldn’t
【答案】A
【详解】句意:——星期六你能来参加我的生日派对吗?——抱歉,我不能去。我得去看望我的祖父母。
考查情态动词。can’t不能;mustn’t禁止;needn’t不必;shouldn’t不应该。根据答语“Sorry”和“I have to visit my grandparents”可知,此处表示“不能去”,应使用can’t。故选A。
11.—Tom, could I use your computer?
—Yes, of course you ________.
A.could B.can C.must D.should
【答案】B
【详解】句意:——汤姆,我能用一下你的电脑吗?——可以,你当然可以。
考查情态动词辨析。could能,过去式或用于委婉请求;can能,可以;must必须;should应该。根据问句“could I use your computer”可知,此处表示委婉请求,答句用“of course you can”表直接许可,符合“同意对方使用电脑”的语境。故选B。
12.Friends ________ always be honest with each other in order to build trust.
A.need B.had better C.will D.can
【答案】B
【详解】句意:为了建立信任,朋友之间最好彼此诚实。
考查情态动词辨析。need需要;had better最好;will将会;can能够。根据“in order to build trust”可知,此处表示建议或推荐。故选B。
13.—I’m going to use the scissors to cut this paper.
—OK, but you had better ________ with them. They may hurt you.
A.don’t play B.not play C.won’t play D.to play
【答案】B
【详解】句意:——我打算用剪刀剪这张纸。——好的,但是你最好不要用它们玩。它们可能会伤到你。
考查had better的用法。根据“They may hurt you.”可知,此处是提醒对方不要用剪刀玩,had better do sth.“最好做某事”,其否定形式为had better not do sth.“最好不要做某事”,所以此处应该用not play。故选B。
14.—Scissors can be dangerous.
—Yes. You’d better ________ with them when you do DIY jobs.
A.not play B.play C.don’t play D.plays
【答案】A
【详解】句意:——剪刀可能很危险。——是的。当你做手工时,最好不要玩剪刀。
考查had better的用法。根据“when you do DIY jobs.”和“Scissors can be dangerous.”可知,因为剪刀可能很危险,所以做手工时,最好不要玩剪刀。had better not do sth.是固定搭配,意为“最好不做某事”,因此此处应用not play。故选A。
15.—We are free this morning. Shall we go out for a walk?
—It’s foggy. We’d better ________ outside.
A.not to walk B.don’t walk C.not walk D.to not walk
【答案】C
【详解】句意:——我们今天早上有空。出去散步好吗?——有雾。我们最好别在外面散步。
考查had better的用法。had better表示建议,后接动词原形,否定形式为had better not do sth。故选C。
16.—Dad, you’d better _______ again, it’s bad for your health.
—Ok, I _______. Thanks, my son.
A.don’t smoke, will B.not smoke, will C.don’t smoke, won’t D.not smoke; won’t
【答案】D
【详解】句意:——爸爸,你最好不要再吸烟了,这对你的健康有害。——好的,我不会了。谢谢,儿子。
考查情态动词和情境交际用语。“had better”的否定形式为“not + 动词原形,故第一空填“not smoke”;回应否定建议时,应用“won’t”表示“将不会做某事”。don’t smoke不要吸烟;will将要;not smoke不要吸烟;won't不会。故选D。
17.It’s going to rain. You’d better ________ an umbrella with you.
A.to take B.take C.taking D.to taking
【答案】B
【详解】句意:天要下雨了。你最好带一把伞。
考查had better的用法。had better后接动词原形,表示建议或劝告,因此空格处应填动词原形take。故选B。
18.—I feel a bit tired. I think I need a break.
—You ________ listen to some light music. It might help you relax.
A.had better B.are able to C.used to D.have to
【答案】A
【详解】句意:——我感觉有点累。我觉得我需要休息一下。——你最好听一些轻音乐。它可能帮助你放松。
考查情态动词。had better最好;are able to能够;used to过去经常常;have to不得不。根据“listen to some light music. It might help you relax.”可知,此处是建议对方听轻音乐,用had better。故选A。
19.—My back hurts badly.
—You’d better ________ a doctor as soon as possible.
A.see B.to see C.seeing D.saw
【答案】A
【详解】句意:——我的背疼得厉害。——你最好尽快去看医生。
考查情态动词。固定句型“had better do sth.”意为“最好做某事”,后接动词原形。故选A。
20.Nowadays many museums are free, so people _______ pay to enter.
A.mustn’t B.don’t have to C.shouldn’t D.can’t
【答案】B
【详解】句意:如今许多博物馆免费,所以人们不必付费进入。
考查情态动词辨析。mustn’t禁止;don’t have to不必;shouldn’t不应该;can’t不能。根据“many museums are free”可知,博物馆免费意味着人们不需要付钱,表示“不必”用don’t have to。故选B。
21.—Can you come to my party tomorrow?
—I’m sorry. I _____ look after my mother. She is ill.
A.can B.may C.would D.have to
【答案】D
【详解】句意:——明天你能来参加我的聚会吗?——抱歉,我不得不照顾我妈妈。她生病了。
考查情态动词辨析。can能;may可能;would将会;have to不得不。根据“She is ill.”可知,妈妈生病了,所以“不得不”照顾她,表示客观上的必要性。故选D。
22.—Miss Li, I don’t want to say sorry to Daniel.
—I’m afraid you _________. After all, you broke his glasses.
A.may B.have to C.mustn’t D.needn’t
【答案】B
【详解】句意:——李老师,我不想向丹尼尔道歉。——恐怕你必须道歉。毕竟你打碎了他的眼镜。
考查情态动词辨析。may可能;have to不得不,必须;mustn’t禁止,不准;needn’t不必。根据答语后半句“After all, you broke his glasses.”(毕竟你打碎了他的眼镜)可知,说话者认为对方“必须”道歉,表示客观上的必要性。故选B。
23.—Must I wait here all day? I have a lot of work to do.
—No, you ________. You can be back in the afternoon.
A.mustn’t B.can’t C.don’t have to D.needn’t to
【答案】C
【详解】句意:——我必须在这里等一整天吗?我有很多工作要做。——不,你不必。你可以下午回来。
考查情态动词。mustn’t禁止;can’t不能;don’t have to不必;needn’t to形式错误。根据答语“You can be back in the afternoon.”可知,此处表示“不必整天等”,以“Must I”开头的一般疑问句,否定回答用No, you don’t have to/needn’t. 故选C。
24.She ________walk to school, her dad drives her there every morning.
A.mustn’t B.can’t C.shouldn’t D.doesn’t have to
【答案】D
【详解】句意:她不必 步行去学校,她爸爸每天早上开车送她。
考查情态动词辨析。mustn’t 禁止;can’t 不能;shouldn’t 不应该;doesn’t have to 不必。根据后半句“her dad drives her there every morning”可知,她爸爸每天早上开车送她,她不需要步行上学,表示“没有必要”。故选D。
25.When you have a fever, you ________ drink more water and have a good rest.
A.must to B.should to C.ought D.need to
【答案】D
【详解】句意:当你发烧时,你需要多喝水、好好休息。
考查need的用法。must to(错误表达);should to(错误表达);ought(后需接to,用法错误);need to需要。根据“When you have a fever, you…drink more water and have a good rest”可知,发烧时需要多喝水,“need to do sth.”表示“需要做某事”,故选D。
26.—Must I give the dictionary back to the library now?
—No, you ________. You can keep it for another two weeks.
A.may not B.needn’t C.mustn’t D.can’t
【答案】B
【详解】句意:——我必须现在把字典还给图书馆吗?——不,你不必。你可以再保留两周。
考查情态动词辨析。may not可能不;needn’t不必;mustn’t禁止;can’t不能。根据“Must I give the dictionary back to the library now?”可知,此处对于“must”开头的一般疑问句,否定回答用“needn’t”表示“不必”。故选B。
27.—Must I finish the work before 6:00 this afternoon?
—No, you ________.
A.can’t B.shouldn’t C.mustn’t D.needn’t
【答案】D
【详解】句意:——我必须今天下午6点前完成这项工作吗?——不,你不必。
考查情态动词。must必须;can’t不能,不可能;shouldn’t不应该”;mustn’t禁止。以Must开头的一般疑问句,否定回答用needn’t或don’t have to,表示“不必”,此处指不必在今天下午6点前完成这项工作。故选D。
28.—Mom, do I ________ take the medicine?
—No, you ________ take it. Just drink some water and have a good rest.
A.need: need to B.need to; don’t need
C.need; needn’t D.need to; needn’t
【答案】D
【详解】句意:——妈妈,我需要吃药吗?——不,你不需要吃药。只需喝点水,好好休息。
考查情态动词用法。在疑问句中,“do I”后需用实义动词“need to”表示“需要”;在否定回答中,可用情态动词“needn’t”表示“不需要”。故选D。
29.—Must we finish the work this morning?
—No, you ________. You can do it tomorrow.
A.needn’t B.mustn’t C.shouldn’t D.can’t
【答案】A
【详解】句意:——我们必须在今天早上完成这项工作吗?——不,你们不需要。你们可以明天做。
考查情态动词辨析。needn’t不必;mustn’t禁止;shouldn’t不应该;can’t不能。根据“You can do it tomorrow.”可知,此处表示“不需要现在完成”,强调“不需要”而非“禁止”或“不能”,故用“needn’t”回答“must”的否定疑问句。故选A。
30.—Must I clean my room now, mum?
—No, you ________. You can clean it after you finish your homework.
A.needn’t B.can’t C.won’t D.shouldn’t
【答案】A
【详解】句意:——我必须现在打扫房间吗,妈妈?——不,你不必。你可以完成作业后再打扫。
考查情态动词辨析。needn’t不必;can’t不能;won’t不会;shouldn’t不应该。“must”提问的否定回答需用“needn’t”表示“不必”。故选A。
31.—Must I finish the project today?
—No, you ________. You can hand it in tomorrow morning.
A.needn’t B.mustn’t C.can’t D.shouldn’t
【答案】A
【详解】句意:——我必须今天完成这个项目吗?——不,你不必。你可以明天早上交。
考查情态动词辨析。needn’t不必;mustn’t禁止;can’t不能;shouldn’t不应该。根据“No”以及“You can hand it in tomorrow morning.”可知,不必今天完成,以must开头的一般疑问句,否定回答用needn’t。故选A。
32.Your personal information is very valuable. You ________ be so careless to share your ID number and bank details online.
A.might B.shouldn’t C.needn’t D.mustn’t
【答案】B
【详解】句意:你的个人信息非常重要,你不应该如此粗心地在网上分享你的身份证号码和银行信息。
考查情态动词辨析。might可能;shouldn’t不应该;needn’t不必;mustn’t禁止。根据“Your personal information is very valuable.”可知,个人信息很宝贵,不应该如此粗心地在网上分享,用shouldn’t表示劝告。故选B。
33.—I have a headache and feel cold.
—You ________ take your temperature first. Maybe you have a fever.
A.will B.may C.should D.can
【答案】C
【详解】句意:——我头痛而且感觉冷。——你应该先量一下体温,可能你发烧了。
考查情态动词辨析。will将要;may可能;should应该;can能够。根据“I have a headache and feel cold.”及语境可知,对方头痛发冷,说话者给出建议,表示“应该”先量体温,should应该,符合情境。故选C。
34.—What’s wrong with you?
—I have a stomachache.
—You ________ eat spicy food.
A.shouldn’t B.should C.must D.needn’t
【答案】A
【详解】句意:——你怎么了? ——我胃疼。——你不应该吃辣的食物。
考查情态动词辨析。shouldn’t不应该;should应该;must必须;needn’t不需要。根据“I have a stomachache.”可知胃疼,所以建议对方不要吃辛辣食物,表示“不应该”,需用“should”情态动词的否定形式“shouldn’t”表达。故选A。
35.Don’t be afraid of problems. You ________ try your best to solve them.
A.may B.needn’t C.would D.should
【答案】D
【详解】句意:不要害怕问题。你应该尽力去解决它们。
考查情态动词辨析。may可能;needn’t不必;would将会;should应该。根据前句“不要害怕问题”可知,后句是鼓励或建议对方尽力解决问题,表达一种责任或建议,应用“应该”。故选D。
36.— What should I do if I have a nosebleed?
— You ________ put your head down.
A.should B.shouldn’t C.can D.must
【答案】A
【详解】句意:——如果我流鼻血了该怎么办?——你应该低下头。
考查情态动词辨析。should应该;shouldn’t不应该;can可以;must必须。根据“You...put your head down.”和常识可知,你“应该”低下头,以避免血液流入咽喉引起呛咳和误吸。故选A。
37.—I have a bad toothache. What should I do?
—You ________ see a dentist and get an X-ray.
A.may B.must C.should D.can
【答案】C
【详解】句意:——我牙疼得厉害。我该怎么办?——你应该去看牙医并拍个X光片。
考查情态动词辨析。may可以;must必须;should应该;can可以。根据问句“What should I do?”(我该怎么办?)可知,答语是给出建议,表示“应该”做某事,应用should。故选C。
38.If you have a stomachache, you ________ eat anything for two hours.
A.shouldn’t B.needn’t C.can D.should
【答案】A
【详解】句意:如果你胃痛,你不应该在两小时内吃任何东西。
考查情态动词辨析。shouldn’t不应该;needn’t不必;can可以;should应该。根据“If you have a stomachache”可知,胃痛时不应该吃东西,这是常识建议。故选A。
39.You ______ drink warm water and rest if you have a fever. It will help you recover soon.
A.shouldn’t B.could C.should D.need
【答案】C
【详解】句意:如果你发烧了,你应该喝温水和休息。这有助于你尽快恢复。
考查情态动词辨析。shouldn’t不应该;could可以,能够;should应该;need需要。根据“It will help you recover soon.”(这将帮助你尽快恢复)可知,这是合理的建议,应用should表示“应该”。故选C。
40.—________ I swim here?
—I’m sorry. Children ________ swim alone here. It’s very dangerous.
A.Must; can’t B.May; must C.Can; mustn’t D.Must; mustn’t
【答案】C
【详解】句意:——我可以在这里游泳吗?——很抱歉。孩子们禁止独自在这里游泳。这非常危险。
考查情态动词辨析。Must必须、一定,表示必要性或强烈的推测;May可以,表示请求许可或可能性;Can能、能够,表示能力或许可;can’t不能,表示没有能力或不被允许;mustn’t禁止、不允许,表示强烈的禁止或警告。根据语境可知,第一空是询问自己是否“能够”在这里游泳,用Can合适;第二空是明确禁止孩子们独自游泳,因为这很危险,所以应该用mustn’t。故选C。
41.—Must I finish my homework before 9 o’clock this evening?
—No, you ________. You can finish it tomorrow morning.
A.needn’t B.mustn’t C.can’t D.shouldn’t
【答案】A
【详解】句意:——我必须在今晚9点前完成我的家庭作业吗?——不,你不必。你可以明天早上完成它。
考查情态动词辨析。needn’t不必;mustn’t禁止;can’t不能;shouldn’t不应该。根据“Must I finish my homework before 9 o’clock this evening?”和“No”可知,此处是对must开头的一般疑问句的否定回答,应用needn’t。故选A。
42.—Whose bike is this?
—It ________ be Mary’s. Her bike is blue, but this one is red.
A.mustn’t B.can’t C.may D.might
【答案】B
【详解】句意:——这是谁的自行车?——不可能是玛丽的。她的自行车是蓝色的,但这辆是红色的。
考查情态动词辨析。mustn’t禁止;can’t不可能;may可能;might可能。根据“Her bike is blue, but this one is red.”可知,颜色不同,因此推断这辆自行车不可能是玛丽的。故选B。
43.—My bike is broken. ________ I borrow yours?
—Yes, you ________.
A.Could; may B.Can; could C.Could; can D.May; could
【答案】C
【详解】句意:——我的自行车坏了。我可以借你的吗?——是的,你可以。
考查情态动词辨析。Could可以,表示委婉请求;Can可以,表示能力或允许;may可以,表示允许或可能性。第一个空,根据“My bike is broken.”可知,此处是在委婉地请求借对方的自行车,所以应该用Could;第二个空,根据“Yes”可知,此处是表示允许对方借自行车,在回答以“Could”开头的疑问句时,肯定回答通常用“can”,表示“可以”。故选C。
44.— Mom, ________ you go shopping with me this Sunday?
— I’m afraid not. I ________ look after your grandma. You can go with your sister.
A.can; have to B.can; can C.must; have to D.should; may
【答案】A
【详解】句意:——妈妈,这个星期天你能和我一起去购物吗?——恐怕不行。我必须照顾你奶奶,你可以和你姐姐去。
考查情态动词辨析。can能;must必须;should应该;have to不得不。根据 “Mom, …you go shopping with me this Sunday?” 可知,这是孩子在礼貌地请求妈妈陪同,用can表示 “能够、可以”,语气委婉,符合请求的语境。 根据 “I’m afraid not. I…look after your grandma.” 可知,妈妈是因为客观原因(需要照顾奶奶)不能去,have to 强调 “不得不、必须”。故选A。
45.—Look! It ________ be Mr. Wang.
—No, it ________ be him. He has gone abroad.
A.may; mustn’t B.must; may not C.must; can’t D.can; may not
【答案】C
【详解】句意:——看!那一定是王先生。——不,不可能是他。他已经出国了。
考查情态动词的用法。may可能;mustn’t禁止;must一定;may not不得;can’t不可能;can能。根据“Look! It…be Mr. Wang.”可知,说话者看到某人,认为那很可能是王先生,表达一种高度确定的推测,应使用must,表示“一定”;根据答语“He has gone abroad.”可知,他已出国,因此不可能是他,否定推测用can’t。故选C。
46.—Jim, ________ I use your computer?
—Yes, of course you ________.
A.could; could B.can; should C.can; must D.could; can
【答案】D
【详解】句意:——吉姆,我可以用一下你的电脑吗?——当然可以。
考查情态动词。could(can的过去式)可以,表示更委婉的请求;can可以,表示允许或能力;should应该;must必须。问句表示委婉请求,用could更礼貌;答句表示肯定允许,用can回答。故选D。
47.—Jack! Could you pass me the plate on the table? I need it now.
—Sorry, I ________. I’m working on my homework on the computer.
A.won’t B.don’t C.couldn’t D.can’t
【答案】D
【详解】句意:——杰克!你能把桌子上的盘子递给我吗?我现在需要它。——抱歉,我不能。我正在电脑上做作业。
考查情态动词辨析。won’t将不会;don’t不(用于一般现在时);couldn’t不能(过去式或委婉语气);can’t不能(表示现在的能力或可能性)。根据“I’m working on my homework on the computer.”可知,说话人现在正在做作业,因此现在无法帮忙,需用can’t表示“现在不能”。故选D。
48.—Can I use my phone in class, Miss Wang?
—No, you ________ use it. It’s against the school rules.
A.might not B.needn’t C.mustn’t D.shouldn’t
【答案】C
【详解】句意:——王老师,我可以在课堂上使用手机吗?——不,你不可以使用。这违反了校规。
考查情态动词辨析。might not可能不;needn’t不必;mustn’t禁止,不可以;shouldn’t不应该。根据“It’s against the school rules.”可知,在课堂上使用手机是违反校规的,所以是禁止、不可以使用的,应该用mustn’t。故选C。
49.—The paper cutting is pretty lively. Who made it?
—It _______ be Mary. None of us except her is able to do it.
A.must B.can C.need D.may
【答案】A
【详解】句意:——这幅剪纸非常生动。谁做的?——一定是玛丽做的。除了她,我们中没人会做。
考查情态动词表推测的用法。must必须,一定(表肯定推测);can能,可能(表能力或可能性);need需要;may可能(表可能性)。根据答语“None of us except her is able to do it.”可知,除了玛丽外没人会做,因此推测剪纸一定是玛丽做的,表示非常肯定的推测,用must。故选A。
50.To keep healthy, we ________ take more exercise and ________ eat too much junk food.
A.can; need B.may; must
C.should; needn’t D.must; shouldn’t
【答案】D
【详解】句意:为了保持健康,我们必须多锻炼,不应该吃太多垃圾食品。
考查情态动词辨析。can能够;need需要;may可以;must必须;should应该;needn’t不必;shouldn’t不应该。根据“To keep healthy”可知,为了健康,多锻炼是应该做的事,而吃太多垃圾食品是不应该做的事。故选D。
51.— Dad, do we ________ take umbrellas with us? It looks like it’s going to rain.
— Yes, we ________. The weather report says there will be a heavy rain this afternoon.
A.must; have to B.have to; must C.have to; have to D.must; must
【答案】B
【详解】句意:——爸爸,我们必须带伞吗?看起来要下雨了。——是的,我们必须带。天气预报说今天下午有大雨。
考查must和have to的用法区别。have to强调“客观需要”,“不得不”做某事。must强调“主观意愿”,表示说话人自己认为“必须”做某事。第一空格,问句do we...take umbrellas?”是因为“看起来要下雨”这个客观情况,所以用have to。第二空格,答句中“天气预报说有大雨”表达说话人的主观看法,所以用must来回应,B选项符合语境。故选B。
52.The food smells ________, so you had better ________ it.
A.terrible; not to eat B.bad; not eat C.terribly; not eat D.badly; not eat
【答案】B
【详解】句意:食物闻起来很糟糕,所以你最好不要吃它。
考查系动词后接形容词和had better的用法。 terrible糟糕的;bad坏的;terribly可怕地;badly严重地。smell是系动词,后应接形容词作表语,描述主语状态;had better后接动词原形,其否定形式为not + 动词原形。故选B。
53.You ________ finish the journal about Lu Xun today, but you ________ copy others’ work. It must be your own ideas.
A.mustn’t; don’t have to B.don’t have to; mustn’t C.mustn’t; mustn’t D.don’t have to; don’t have to
【答案】B
【详解】句意:你今天不必完成关于鲁迅的日志,但你不准抄袭别人的作品。这必须是你自己的想法。
考查情态动词辨析。mustn’t 不准,禁止;don’t have to 不必。根据句意,第一空表示“不必今天完成”,第二空表示“禁止抄袭”。故选B。
54.— What do you think we can do for our aged grandparents?
— You ________ do anything but be with them as much as possible.
A.needn’t B.may not C.wouldn’t D.mustn’t
【答案】A
【详解】句意:——你认为我们能为年迈的祖父母做些什么?——你什么都不用做,只要尽可能多地和他们在一起。
考查情态动词辨析。needn’t不需要;may not可能不;wouldn’t不会;mustn’t禁止。根据“but be with them as much as possible.”可知,此处指不需要做什么事情。故选A。
55.—I have a bad stomachache for the whole day.
—You ________ see a doctor right now.
A.can B.need C.can’t D.needn’t
【答案】B
【详解】句意:—— 我一整天都胃痛得厉害。 —— 你需要马上去看医生。
考查情态动词词义辨析。can能;need需要;can’t不能;needn’t不必。由“I have a bad stomachache for the whole day.”可知,胃痛严重,所以需要马上去看医生,“need”符合语境。故选B。
56.She doesn’t ________ a new dictionary because she has ________.
A.need to buy; one B.need buy; one C.need to buy; it D.need buy; it
【答案】A
【详解】句意:她不需要买一本新字典,因为她已经有一本了。
考查need的用法和代词辨析。need to buy需要买;one一本;need buy错误搭配;it它。need作实义动词时,后接to do;后半句“她已经有一本”中的“一本”指代同类事物,用one泛指。故选A。
57.—Someone is knocking at the door. Who ________ it be?
—It ________ be Tom. He is still in the school.
A.can, mustn’t B.may, can’t C.may, couldn’t D.can, may not
【答案】B
【详解】句意:——有人在敲门。那会是谁呢?——不可能是汤姆。他还在学校。
考查情态动词表推测的用法。can能;mustn’t禁止;may可能;can’t不可能;couldn’t不可能,过去式;may not可能不。第一空表示对现在情况的推测,疑问句中常用“can”或“may”表示“可能”,但“can”更常见于疑问句和否定句,“may”多用于肯定句,此处疑问句用“can”或“may”均可。第二空根据答语“He is still in the school.”可知汤姆还在学校,因此敲门的人“不可能”是汤姆,表示否定推测用“can’t”。故选B。
58.Frank ________ be interested in Chinese folk music, for he has spent 20 years studying it.
A.must B.mustn’t C.could D.couldn’t
【答案】A
【详解】句意:Frank一定对中国的民间音乐感兴趣,因为他已经花了20年时间研究它。
考查情态动词辨析。must一定;mustn’t禁止;could可以;couldn’t不能。根据“for he has spent 20 years studying it”可知他已经花了20年时间研究中国的民间音乐,可见他一定对中国的民间音乐感兴趣。故选A。
59.Mike, you ________ play with fire. You ________ burn yourself.
A.don’t have to; can’t
B.mustn’t; may
C.mustn’t; shouldn’t
D.shouldn’t; must
【答案】B
【详解】句意:迈克,你千万不要玩火。你可能会烧伤自己。
考查情态动词辨析。don’t have to不必;can’t不能;mustn’t禁止,不准;may可能;shouldn’t不应该;must必须。根据“you…play with fire.”可知,第一空表示“禁止玩火”,语气强烈,应用mustn’t;又因“You…burn yourself.”可知,第二空表示“可能”烧伤自己,表示可能性,应用may。故选B。
60.You ________ finish the journal about “Lu Xun” today, but you ________ copy others’ work. It must be your own ideas.
A.mustn’t; don’t have to B.don’t have to; mustn’t
C.mustn’t; mustn’t D.don’t have to; don’t have to
【答案】B
【详解】句意:你今天不必完成关于“鲁迅”的日志,但你绝对不准抄袭别人的作品,必须是你自己的想法。
考查情态动词辨析。mustn’t禁止;don’t have to不必。根据“You…finish the journal about ‘Lu Xun’ today, but you…copy others’ work. It must be your own ideas. ”可知,第一空表示“不必完成”,因为时间允许,应用“don’t have to”;第二空表示“禁止抄袭”,应用“mustn’t”强调不允许。故选B。
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Unit 3 What makes a great team
单元Grammar:情态动词(一)易错题精练60题
语
法
精
讲
初中高频情态动词(can/must/should/need/have to/had better)
考点 1:情态动词 can
基本含义:①能;会(表能力) ②可以(表许可) ③可能(表推测,用于否定 / 疑问句)
句式结构:主语 + can + 动词原形;否定式 can't;疑问式 Can + 主语 + 动词原形?
特殊用法:can't help doing sth. 情不自禁做某事
考点例句:①I can speak English.(能力) ②Can I use your pen?(许可) ③It can't be his book.(推测)
考点 2:情态动词 must
基本含义:①必须;一定(表义务 / 肯定推测,语气最强) ②禁止(mustn't,表强烈否定)
句式结构:主语 + must + 动词原形;否定式 mustn't(禁止)/don't have to(不必);疑问式 Must + 主语 + 动词原形?
问答搭配:Must I...? ——Yes, you must. / No, you don't have to./you needn't.
考点例句:①You must finish your homework first.(义务) ②He must be at home.(推测) ③You mustn't cross the road.(禁止)
考点 3:情态动词 should
基本含义:①应该;应当(表建议 / 责任 / 义务,语气委婉) ②竟然(表惊讶,特殊用法)
句式结构:主语 + should + 动词原形;否定式 shouldn't;疑问式 Should + 主语 + 动词原形?
核心用法:提建议(最高频),可与 Why not.../You'd better... 互换
考点例句:①You should exercise every day.(建议) ②We shouldn't be late for school.(否定建议)
考点 4:情态动词 need
双重属性:情态动词/实义动词(考点核心)
「情态动词」用法:
含义:需要(多用于否定 / 疑问句)
结构:need + 动词原形;否定式 needn't;疑问式 Need + 主语 + 动词原形?
「实义动词」用法:
含义:需要(可用于肯定 / 否定 / 疑问句,有人称 / 时态变化)
结构:need to do sth.;否定式 don't/doesn't need to do;疑问式 Do/Does + 主语 + need to do?
考点例句:①Need I go now?(情态) ②You needn't worry.(情态) ③I need to buy a new pen.(实义)
考点 5:情态动词 have to
基本含义:不得不;必须(表客观需要 / 外界强迫,区别于 must 的主观意愿)
句式结构:有人称 / 时态变化,后接动词原形
一般现在时:I/you/we/they have to;he/she/it has to
否定式:don't/doesn't have to;疑问式:Do/Does + 主语 + have to...?
过去时:had to(否定:didn't have to)
与 must 区别:must(主观必须);have to(客观不得不)
考点例句:①It's rainy, I have to take an umbrella.(客观) ②He had to get up early yesterday.(过去时)
考点 6:情态动词 had better
基本含义:最好(表建议,语气比 should 更强烈,表 “劝告 / 叮嘱”)
句式结构:主语 + had better + 动词原形(had 无人称变化,可缩写为 'd better)
否定式:had better not + 动词原形(注意:无 had bettern't 形式)
特殊点:无疑问式,多用于口语化建议
考点例句:①You'd better go to bed early.(肯定建议) ②We had better not play computer games too much.(否定建议)
通用核心规律
1.后接动词原形,无人称 / 数的变化(have to/need 实义动词除外)
2.否定式:直接在情态动词后加not(had better/have to 特殊)
3.疑问式:将情态动词提前至句首(have to/need 实义动词用助动词)
4.表推测:can(否 / 疑)、must(肯定,语气最强)
语
法
精
练
一、单项选择
1.You’d better ________ more water if you have a fever.
A.drink B.drinking C.to drink D.drank
2.—I can’t give up smoking, Doctor Frank.
—For your health, I’m afraid you ________.
A.may B.can C.have to D.might
3.If you live near the shopping mall, you ________ go far to buy things.
A.have to B.don’t have to C.haven’t to D.needn’t to
4.—Why didn’t you go to the party last night?
—Because I ________ finish my homework first.
A.had to B.could C.might D.would
5.—Did you go to Linda’s birthday party yesterday?
—I didn’t go to her birthday party because I had to ________ an important meeting.
A.attended B.attend C.attending D.attends
6.Dogs ________ run through the streets. It’s too dangerous!
A.should B.shouldn’t C.need D.needn’t
7.— ________ I take some medicine?
— Yes, you should.
A.Should B.Can C.Must D.Need
8.—Must we put away all the workbooks right now?
—No, you________. You can do it after school.
A.shouldn’t B.needn’t C.mustn’t D.can’t
9.Hey, Nora, I want to write about my best friend Jenny for the class booklet. ________ you help me?
A.Can B.Must C.Should D.May
10.—Can you come to my birthday party on Saturday?
—Sorry, I ________. I have to visit my grandparents.
A.can’t B.mustn’t C.needn’t D.shouldn’t
11.—Tom, could I use your computer?
—Yes, of course you ________.
A.could B.can C.must D.should
12.Friends ________ always be honest with each other in order to build trust.
A.need B.had better C.will D.can
13.—I’m going to use the scissors to cut this paper.
—OK, but you had better ________ with them. They may hurt you.
A.don’t play B.not play C.won’t play D.to play
14.—Scissors can be dangerous.
—Yes. You’d better ________ with them when you do DIY jobs.
A.not play B.play C.don’t play D.plays
15.—We are free this morning. Shall we go out for a walk?
—It’s foggy. We’d better ________ outside.
A.not to walk B.don’t walk C.not walk D.to not walk
16.—Dad, you’d better _______ again, it’s bad for your health.
—Ok, I _______. Thanks, my son.
A.don’t smoke, will B.not smoke, will C.don’t smoke, won’t D.not smoke; won’t
17.It’s going to rain. You’d better ________ an umbrella with you.
A.to take B.take C.taking D.to taking
18.—I feel a bit tired. I think I need a break.
—You ________ listen to some light music. It might help you relax.
A.had better B.are able to C.used to D.have to
19.—My back hurts badly.
—You’d better ________ a doctor as soon as possible.
A.see B.to see C.seeing D.saw
20.Nowadays many museums are free, so people _______ pay to enter.
A.mustn’t B.don’t have to C.shouldn’t D.can’t
21.—Can you come to my party tomorrow?
—I’m sorry. I _____ look after my mother. She is ill.
A.can B.may C.would D.have to
22.—Miss Li, I don’t want to say sorry to Daniel.
—I’m afraid you _________. After all, you broke his glasses.
A.may B.have to C.mustn’t D.needn’t
23.—Must I wait here all day? I have a lot of work to do.
—No, you ________. You can be back in the afternoon.
A.mustn’t B.can’t C.don’t have to D.needn’t to
24.She ________walk to school, her dad drives her there every morning.
A.mustn’t B.can’t C.shouldn’t D.doesn’t have to
25.When you have a fever, you ________ drink more water and have a good rest.
A.must to B.should to C.ought D.need to
26.—Must I give the dictionary back to the library now?
—No, you ________. You can keep it for another two weeks.
A.may not B.needn’t C.mustn’t D.can’t
27.—Must I finish the work before 6:00 this afternoon?
—No, you ________.
A.can’t B.shouldn’t C.mustn’t D.needn’t
28.—Mom, do I ________ take the medicine?
—No, you ________ take it. Just drink some water and have a good rest.
A.need: need to B.need to; don’t need
C.need; needn’t D.need to; needn’t
29.—Must we finish the work this morning?
—No, you ________. You can do it tomorrow.
A.needn’t B.mustn’t C.shouldn’t D.can’t
30.—Must I clean my room now, mum?
—No, you ________. You can clean it after you finish your homework.
A.needn’t B.can’t C.won’t D.shouldn’t
31.—Must I finish the project today?
—No, you ________. You can hand it in tomorrow morning.
A.needn’t B.mustn’t C.can’t D.shouldn’t
32.Your personal information is very valuable. You ________ be so careless to share your ID number and bank details online.
A.might B.shouldn’t C.needn’t D.mustn’t
33.—I have a headache and feel cold.
—You ________ take your temperature first. Maybe you have a fever.
A.will B.may C.should D.can
34.—What’s wrong with you?
—I have a stomachache.
—You ________ eat spicy food.
A.shouldn’t B.should C.must D.needn’t
35.Don’t be afraid of problems. You ________ try your best to solve them.
A.may B.needn’t C.would D.should
36.— What should I do if I have a nosebleed?
— You ________ put your head down.
A.should B.shouldn’t C.can D.must
37.—I have a bad toothache. What should I do?
—You ________ see a dentist and get an X-ray.
A.may B.must C.should D.can
38.If you have a stomachache, you ________ eat anything for two hours.
A.shouldn’t B.needn’t C.can D.should
39.You ______ drink warm water and rest if you have a fever. It will help you recover soon.
A.shouldn’t B.could C.should D.need
40.—________ I swim here?
—I’m sorry. Children ________ swim alone here. It’s very dangerous.
A.Must; can’t B.May; must C.Can; mustn’t D.Must; mustn’t
41.—Must I finish my homework before 9 o’clock this evening?
—No, you ________. You can finish it tomorrow morning.
A.needn’t B.mustn’t C.can’t D.shouldn’t
42.—Whose bike is this?
—It ________ be Mary’s. Her bike is blue, but this one is red.
A.mustn’t B.can’t C.may D.might
43.—My bike is broken. ________ I borrow yours?
—Yes, you ________.
A.Could; may B.Can; could C.Could; can D.May; could
44.— Mom, ________ you go shopping with me this Sunday?
— I’m afraid not. I ________ look after your grandma. You can go with your sister.
A.can; have to B.can; can C.must; have to D.should; may
45.—Look! It ________ be Mr. Wang.
—No, it ________ be him. He has gone abroad.
A.may; mustn’t B.must; may not C.must; can’t D.can; may not
46.—Jim, ________ I use your computer?
—Yes, of course you ________.
A.could; could B.can; should C.can; must D.could; can
47.—Jack! Could you pass me the plate on the table? I need it now.
—Sorry, I ________. I’m working on my homework on the computer.
A.won’t B.don’t C.couldn’t D.can’t
48.—Can I use my phone in class, Miss Wang?
—No, you ________ use it. It’s against the school rules.
A.might not B.needn’t C.mustn’t D.shouldn’t
49.—The paper cutting is pretty lively. Who made it?
—It _______ be Mary. None of us except her is able to do it.
A.must B.can C.need D.may
50.To keep healthy, we ________ take more exercise and ________ eat too much junk food.
A.can; need B.may; must
C.should; needn’t D.must; shouldn’t
51.— Dad, do we ________ take umbrellas with us? It looks like it’s going to rain.
— Yes, we ________. The weather report says there will be a heavy rain this afternoon.
A.must; have to B.have to; must C.have to; have to D.must; must
52.The food smells ________, so you had better ________ it.
A.terrible; not to eat B.bad; not eat C.terribly; not eat D.badly; not eat
53.You ________ finish the journal about Lu Xun today, but you ________ copy others’ work. It must be your own ideas.
A.mustn’t; don’t have to B.don’t have to; mustn’t C.mustn’t; mustn’t D.don’t have to; don’t have to
54.— What do you think we can do for our aged grandparents?
— You ________ do anything but be with them as much as possible.
A.needn’t B.may not C.wouldn’t D.mustn’t
55.—I have a bad stomachache for the whole day.
—You ________ see a doctor right now.
A.can B.need C.can’t D.needn’t
56.She doesn’t ________ a new dictionary because she has ________.
A.need to buy; one B.need buy; one C.need to buy; it D.need buy; it
57.—Someone is knocking at the door. Who ________ it be?
—It ________ be Tom. He is still in the school.
A.can, mustn’t B.may, can’t C.may, couldn’t D.can, may not
58.Frank ________ be interested in Chinese folk music, for he has spent 20 years studying it.
A.must B.mustn’t C.could D.couldn’t
59.Mike, you ________ play with fire. You ________ burn yourself.
A.don’t have to; can’t
B.mustn’t; may
C.mustn’t; shouldn’t
D.shouldn’t; must
60.You ________ finish the journal about “Lu Xun” today, but you ________ copy others’ work. It must be your own ideas.
A.mustn’t; don’t have to B.don’t have to; mustn’t
C.mustn’t; mustn’t D.don’t have to; don’t have to
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立足新教材,自学有章法,练习有重点!
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