资源简介 / 让学习更有效 新课备课备考 | 英语学科/ 让学习更有效 新课备课备考 | 英语学科2025年沪教版(五四学制)(2024)新八年级英语上册精讲精练Unit 2 Digital life核心语法:情态动词一、核心概念情态动词是表示说话人态度、情感或判断的助动词,具有以下统一特征:后接动词原形(不带to)无人称和数的变化构成疑问句和否定句时不借助助动词do/does二、情态动词分类及用法详解情态动词 核心意义 典型用法场景 例句can/could 能力/许可/可能性 1. 表示能力(could表过去能力)2. 请求许可(could更委婉)3. 推测可能性(could可能性更低) I can swim 100 meters.Could I use your phone It could rain later.may/might 许可/可能性 1. 正式请求许可(may更正式)2. 推测可能性(might可能性更小) May I leave early She might be in the library.must/have to 必须 1. must强调主观义务2. have to强调客观需要 You must obey the rules.I have to wear glasses.should/ought to 应该 1. 提出建议或意见2. 表示责任或义务 You should apologize.We ought to protect the environment.will/would 意愿/请求 1. will表意愿或承诺2. would表委婉请求 I will help you.Would you open the window shall 建议/承诺 1. 征求意见(第一人称)2. 正式承诺 Shall we begin You shall receive the report today.三、重点语法现象深度解析推测性用法三阶体系(可能性程度)肯定程度 现在推测 过去推测 否定形式高度确定(95%) must be must have done can't be/couldn't have done中等可能(50%) may/might be may/might have done may not/might not have done理论可能(30%) could be could have done -The lights are on - he must be home now.She may have forgotten our appointment.They could be stuck in traffic.虚拟语气中的情态动词could/would/might + 动词原形表假设If I were you, I would apologize.You could have passed if you had studied.情态动词的完成式结构:情态动词 + have + 过去分词表示对过去情况的推测或评价You should have told me earlier.(本应做而未做)He must have missed the train.(肯定已经)四、易错题型专项突破1、近义情态动词辨析题must vs. have to(主观vs客观)can vs. may(能力vs许可)should vs. ought to(建议vs责任)2、时态转换题现在→过去:can→could, may→mightI can swim. → He said he could swim.3、否定含义题mustn't(禁止)vs don't have to(不必)You mustn't smoke here.(严禁)You don't have to come.(可不来)五、典型错误诊断室1、to的误加 You must to finish the work.( ) You must finish the work.(√)2、过去时态错误 Yesterday I must go to the doctor.( ) Yesterday I had to go to the doctor.(√)3、第三人称单数错误 She cans speak French.( ) She can speak French.(√)4、推测用法混淆 He must went home.( ) He must have gone home.(√)1.Elephants can ________ for a long time and never get lost. A.walk B.walks C.walking D.to walk 2.—________ I borrow some books from you —Of course.A.Could B.Can C.A or B3.— John, hurry up! Or we’ll miss the early bus.— Oh, no. We _______ cross the street until the traffic lights turn green.A.mustn’t B.needn’t C.should D.can4.Pigeons ________ fly at speeds of over 100km per hour. That’s as fast as my dad’s car!A.must B.mustn’t C.can D.can’t5.—Excuse me, ________ you show me the way to the Jiajia Hotel —Sorry, I am new here.A.should B.must C.could D.may6.Li Ming can’t ________ a salad.A.make B.makes C.making D.made7.— Could I keep the windows ________ There are too many people in the room.— Of course you ________. It is important to let the fresh air in.A.open; could B.closed; can C.open; can D.closed; could8.Cars, buses and bikes ________ stop when the traffic light is red.A.can B.must C.may D.need9.—Can you speak English, Lingling —Yes, I ________.A.must B.can C.should10.—Must I give up smoking, doctor —For your health, you ________.A.should B.must C.need to D.have to11.—Jane, shall we ________to the zoo to see the tigers —OK, let’s go.A.go B.to go C.goes D.going12.—Could I borrow your pen —Sorry, you _______. Mike is using it.A.can’t B.shouldn’t C.mustn’t D.needn’t13.Tom, you had better ________ there today.A.go B.to go C.going D.to going14.—________ you play football —Yes, I can.A.Can B.Do C.Are D.Does15.________ you open the door for me I am carrying too many things.A.Must B.May C.Need D.Could16.You ________ eat in the classroom.A.don’t B.can’t C.not D.no17.You should ________ more water when you have a fever.A.drinks B.drinking C.drinked D.drink18.—Sam, ________ I join you in the community service —Of course you can.A.can B.must C.should D.need19.—________ I bring my mobile phone to school —No, you can’t.A.Must B.Can C.Need D.Do20.You ________ play with fire. It’s very dangerous.A.mustn’t B.needn’t C.don’t have to D.may not21.Jean ________ have kept his promise. I wonder why he changed his idea.A.must B.should C.need D.would22.—Excuse me, but we ________ wait in line to get on the subway.—I’m sorry.A.might B.would C.could D.should23.—________ you help me carry the things for the picnic —Sure.A.Must B.Should C.Can D.May24.—Shall we meet at the station at 7 a.m. —In fact, we ________. The train ________ until 10 a.m.A.mustn’t; doesn’t leave B.mustn’t; leaves C.needn’t; won’t leave D.needn’t; will leave25.—I have a toothache.—Maybe you ________ see a dentist.A.shouldn’t B.needn’t C.would D.should26.—My iPad is broken. Could I use yours —No problem, but you have _________ it to me tomorrow.A.return B.returning C.to return D.returned27.If you have a backache, you ________lift heavy things. You ________ lie down for a good rest.A.had better; shouldn’t B.shouldn’t; had better notC.shouldn’t; had better D.had better not; mustn’t28.—Can you cook —Yes, I ________. And I like cooking very much.A.can B.can’t C.do D.don’t29.More and more people can ________ 100 years old in the future.A.live B.live to be C.living to be D.lived to be30.—________ I have lunch now, Mom —No. You must wash your hands first.A.Would B.May C.Must D.Should31.—________ I bring my mobile phone to school —No, you can’t. It’s not allowed.A.Must B.Do C.Can D.Need32.Steve is good at sports. He________play basketball and football, and run very fast.A.must B.can C.should D.may33.My aunt is a ___________. She can ___________ nice food.A.cook; cooks B.cooker; cooks C.cook; cook D.cooker; cook34.There ________ somebody at home because the light is on.A.maybe B.may be C.can’t be D.may35.Many years ago, the air was fresh and the water was clean here. We could ________ bees ________ and hear birds ________.A.see; dance; singB.see; dancing; singingC.saw; dance; sing36.You don’t ________ wash all the plates after meals.A.have to B.must C.may D.has to37.My brother doesn't ________ get up so early on Sundays.A.have to B.has to C.had to D.must38.—Jimmy, we need an actor for the action movie. _________ you play kung fu —Sorry, I can’t.A.Must B.May C.Should D.Can39.—Must I wash all the clothes this afternoon —No, you ________.A.don’t have to B.mustn’t C.can’t40.—Can we talk about the books in the library —________. We have to be quiet.A.Yes, we do B.No, we don’t C.No. we can’t D.Yes, we can41.The one who is singing now ________ be Mr. Green. He has gone to Beijing.A.can B.can’t C.must D.mustn’t42.—How nice the building is! What is it for —It _________ a hotel. But I’m not sure.A.must be B.has to be C.may be D.can’t be43.The toy car ________ be John’s. He was the only little boy at the picnic.A.can’t B.must C.might D.could44.To make our dream come true, we ________ rest on what we have done.A.may not B.should not C.need not D.could not45.Could you please speak a little louder I _________ hear you very well.A.can’t B.mustn’t C.shouldn’t D.needn’t46.—Excuse me, ________ you please tell me where I can post a letter —________. Turn left. There is a post office on Fifth Road.A.could; Sure B.could; Sorry C.will; Sounds great D.will; Good idea47.We should ________ our language when we talk to others.A.hard B.soft C.soften D.harden48.—What instruments ________ you ________ —I can play the violin.A.can; play B.may; play C.can; playing D.may; playing49.The girl ___________ go out alone in the dark night.A.dares not B.dare not C.dare not to D.dares not to50.—Do you ________ clean the classroom every day —Yes. We usually clean it after class.A.have to B.has to C.must D.can51.— ________ Lisa speak Chinese —No, she ________.A.Do; don’t B.Is; isn’t C.Does; can’t D.Can; can’t52.Could you please ________ me something about wild animals A.tell B.telling C.to tell D.told53.—Can you swim in this river —________. It’s too dangerous.A.Yes, I can B.No, I can’t C.Yes, you may D.No, you needn’t54.I ________ buy the recorder because I had no money with me then.A.can B.cannot C.could D.couldn’t55.I am busy now. ________ my brother do it for you A.Will B.Shall C.Must D.May56.We ________ waste water. We should save it.A.can B.may C.mustn’t D.needn’t57.My English teacher hopes ________ speak English often after class.A.us to B.us can C.we can D.we to58.On school days, we must wear school uniforms, but on weekends we ________.A.must B.mustn’t C.have to D.don’t have to59.Sara _________ a stomachache. So she _________ eat the ice-cream.A.has; shouldn’t B.has; should C.have; shouldn’t60.It’s raining now, so I ________ stay at home.A.can’t B.have to C.mustn’t61.We ________ be more careful, or we will make the same mistake in the experiment.A.might B.can C.may D.should62.—Must we wear the school clothes tomorrow, Mr. Wang —No, you________. Only on Mondays. Tomorrow is Tuesday.A.mustn’t B.needn’tC.can’t D.shouldn’t63.—Oh no, I took the wrong bus. ________ I get off now —Sorry. The bus is moving, and you have to get off at the next bus stop.A.Can B.Should C.Must64.—Excuse me. How ________ I get to Ditan Park —Go along this road, and you can’t miss it.A.can B.must C.may D.need65.When you leave the classroom, you ________ switch the lights off.A.can B.may C.must D.would66.—_________ you come to my party this evening —Sorry, I can’t. I have to go to a meeting.A.Must B.Can C.Need D.Shall67.It's so noisy outside. I can't ________.A.go to bed B.fall asleep C.go to asleep D.fall sleeping68.You had better not _______ in the sun.A.read B.to read C.reading69.I ________ ride a bike when I was ten.A.can B.could C.should D.must70.— Can Jimmy play the guitar —No, he ________.A.can’t B.isn’t C.don’t D.doesn’t71.—Mom, must I clean my room —No, you __________.A.mustn't B.needn’t C.can’t D.don't72.Will you please ________ so much noise A.not make B.don’t make C.not to make D.don’t to make73.—Who is the woman over there Is she Mary —It ________ be her. She has gone to Beijing.A.could B.must C.can’t D.may not74.—________ you please play tennis with me —Sorry, I ________.A.Could; can’t B.Could; couldn’t C.Can; don’t D.Could; could75.You ________ buy a TV guide for next week. I have already bought a copy. You can read mine.A.have to B.needn’t C.must D.mustn’t76.You’d better ________ at night because it is dark.A.go out B.going out C.not go out D.not going out77.— When should we hand in my paper — Your paper must ________ as soon as the bell ________.A.be handed in; rings B.be handed in; will ringC.hand in; rings D.hand in; will ring78.Bob likes eating sweet snacks while ________ TV. I think he’d better________ the habit.A.to watch; give up B.watching; give upC.watching; to give up D.to watch; to give up79.—How do you usually go to school —My school is far away. I ________ take the bus to school.A.must B.don’t have to C.have to D.has to80.—Must I stay in the office this afternoon —No, you .A.mustn't B.needn't C.don't need D.can't/ 让学习更有效 新课备课备考 | 英语学科/ 让学习更有效 新课备课备考 | 英语学科21世纪教育网(www.21cnjy.com)21世纪教育网(www.21cnjy.com)参考答案及试题解析1.A【解析】句意:大象可以走很长时间的路,并且从不迷路。考查情态动词。根据“Elephants can...”可知,情态动词can后接动词原形walk。故选A。2.C【解析】句意:——我可以向你借几本书吗?——当然。考查情态动词。could能;can能。根据题干可知,此处是表示请求允许,用could和can都可以,故选C。3.A【解析】句意:——约翰,快点!否则我们就赶不上早班车了。——哦,不。在交通灯变绿之前,我们不能过马路。考查情态动词。mustn’t禁止,一定不要;needn’t不必;should应该;can能,会;根据“cross the street until the traffic lights turn green.”可知,此处指的是“禁止过马路直到绿灯变亮”,故选A。4.C【解析】句意:鸽子能以每小时100多公里的速度飞行。跟我爸的车一样快!考查情态动词。must必须;mustn’t不能;can可以,能;can’t不可以。根据“That’s as fast as my dad’s car!”可知,鸽子能以每小时100多公里的速度飞行。故选C。5.C【解析】句意:——打扰一下,您能告诉我到佳佳酒店的路吗?——抱歉,我是新来的。考查情态动词的用法。should应该;must必须;could能够,常用于礼貌地请求帮助;may可能。根据语境,此处是礼貌地请求对方帮助,故选用could。故选C。6.A【解析】句意:李明不会制作沙拉。考查情态动词后接动词原形的用法。can’t是情态动词,后接动词原形,故选A。7.C【解析】句意:——我可以把窗户开着吗?房间里人太多了。——当然可以。让新鲜空气进来很重要。考查形容词作宾补和情态动词。open开着的;closed关着的;can能,可以;could是can的过去式。根据句意“It is important to let the fresh air in”可知,这里是让窗户开着,排除B和D;could用来表示语气委婉,答语中用can。故选C。8.B【解析】句意:当交通灯是红色时,小汽车、公共汽车和自行车必须停下来。考查情态动词。can可能;must一定,必须;may可以;need需要。 根据空格后“when the traffic light is red.”可知,当交通灯是红色的时候,小汽车, 公共汽车和自行车必须停下来。故选B。9.B【解析】句意:——玲玲,你会说英语吗?——是的,我会。考查情态动词。must必须;can会,能够;should应该。根据“Can you speak English”可知,句中can表示“能,会”,肯定回答仍用can,故选B。10.D【解析】句意:——医生,我必须戒掉抽烟吗?——为了你的健康,你不得不。考查情态动词have to的用法。should应该;must必须;need to需要;have to不得不,必须。根据“Must I give up smoking, doctor ”可知,问话人其实不太想戒烟,结合空前的“For your health”可知,医生说的是:为了你的健康,你必须得戒烟。must和have to都可以表达必须,但must强调主观上认为必须做某事,而have to强调客观环境所迫必须做某事,所以,此处have to符合题意。故选D。11.A【解析】句意:——简,我们去动物园看老虎好吗?——好,我们走吧。考查非谓语动词。情态动shall后跟动词原形。故选A。12.A【解析】句意:——我可以借你的笔吗?——对不起,你不能。Mike正在用。考查一般疑问句的回答。“Could I borrow your pen ”表示委婉的请求,回答时用can来回答,肯定回答用can,否定回答用can’t,根据“Mike is using it.”可知,是不能借,因此作否定回答。故选A。13.A【解析】句意:汤姆,你最好今天去那里。考查情态动词用法。情态动词had better后接动词原形,had better do sth“最好做某事”。故选A。14.A【解析】句意:——你会踢足球吗?——是的,我会。考查情态动词。can能够,是情态动词;do是助动词;are是,be动词;does是助动词。根据答语“Yes, I can.”可知,应用can。故选A。15.D【解析】句意:你能帮我把门打开吗?我拿了太多东西。考查情态动词。Must必须;May可以;Need需要;Could能够。表示请求时一般用“Could you … ” Could意为 “能够”,表示婉转的请求。故选D。16.B【解析】句意:你不能在教室里吃东西。考查情态动词。don’t助动词,构成否定句;can’t不能,不可以;not表示否定;no不,没有。根据“You...eat in the classroom.”可知此处表达不能在教室里吃东西,can’t意为“不能”,符合句意,故选B。17.D【解析】句意:你发烧时应该多喝水。考查情态动词should的用法。should “应该”,是情态动词,后面接动词原形。故选D。18.A【解析】句意:——Sam,我能加入你的社区服务吗?——你当然可以。考查动词辨析。can可以;must必须;should应该;need需要。根据“Of course you can.”可知,此处请求对方允许,用can,故选A。19.B【解析】句意:——我可以带手机去学校吗?——不,你不可以。考查情态动词。must必须;can能够;need需要;do助动词。根据“No, you can’t.”可知,一般疑问句以can开头,故选B。20.A【解析】句意:你不准玩火。这非常危险。考查情态动词。mustn’t禁止,不准;needn’t不必;don’t have to不必;may not可能不。根据“You...play with fire. It’s very dangerous.”可知,这里表示禁止玩火,强调危险性。故选A。21.B【解析】句意:Jean应该遵守他的诺言。我不知道他为什么改变了主意。考查情态动词辨析。must一定;should应该;need需要;would会。根据“I wonder why he changed his idea”,可知,想知道他为什么改变了主意,原本他应该要遵守诺言的,should have +过去分词表示“过去本来应该(但没能)做某事”,故选B。22.D【解析】句意:——对不起,我们应该排队上地铁。——我很抱歉。考查情态动词辨析。might可以;would将;could可以;should应该。根据“but we …wait in line to get on the subway”可知,应该排队上地铁,故选D。23.C【解析】句意:——你能帮我搬运野餐用品吗?——当然可以。考查情态动词。Must必须;Should应该;Can能/可以;May可以/可能。根据“you help me carry the things for the picnic ”可知,请求别人提供帮助时常使用can,表示请求许可。故选C。24.C【解析】句意:——我们早上7点在车站见面好吗?——事实上,我们不需要。火车要到上午10点才开。考查动词时态。mustn’t禁止,表示“不可以”和“不允许”;needn’t没必要。根据“until 10 a.m.”可知,此处是将来的时间点,需用一般将来时,可排除AB选项;再根据“The train won’t leave until 10 a.m.”可知,没必要早来。故选C。25.D【解析】句意:——我牙疼。——也许你应该去看牙医。考查情态动词辨析。shouldn’t不应该;needn’t不必要;would将会;should应该。根据“I have a toothache.”和“Maybe you ...see a dentist.”可知,此处表示你应该去看牙医,should表示建议。故选D。26.C【解析】句意:——我的iPad坏了,我能用你的吗?——没问题,但是你明天得还给我。考查情态动词have to的用法。根据语境可知,此处指“明天得还给我”;英语have to do sth意为“不得不做某事”,可知此处填“to+动词原形”。故选C。27.C【解析】句意:如果你背痛,你不应该提重物。你最好躺下好好休息一下。考查情态动词。had better最好;had better not最好不;shouldn’t不应该;mustn’t表禁止。由“you…lift heavy things”可知,背痛不应该提重物,故用shouldn't;由“You…lie down for a good rest.”可知,背痛最好要好好休息,故用had better。故选C。28.A【解析】句意:——你会做饭吗?——是的,我会。我非常喜欢做饭。考查动词辨析。can会、可以、能;can’t不能;do助动词原形;don’t助动词否定形式。Can开头的一般疑问句,肯定回答用Yes, 主语+can。故选A。29.B【解析】句意:在未来越来越多的人能活到100岁。考查动词短语。live居住,生活;live to be活到。根据“100 years old ”可知此处指“能活到100岁”,所以排除A;情态动词can后接动词原形。故选B。30.B【解析】句意:——妈妈,我现在可以吃午饭了吗?——不。你必须先洗手。考查情态动词辨析。Would将会;May可以;Must必须;Should应该。结合回答“No. You must wash your hands first.”可知,问句应是表示 “请求允许”,问妈妈 “现在可以吃午饭了吗”,may符合语境。故选B。31.C【解析】句意:——我可以带手机去学校吗?——不,你不可以。这是不允许的。考查动词辨析。Must必须;Do助动词;Can可以;Need需要。根据答句“No, you can’t.”可知,此处为can引导的一般疑问句,询问是否可以带手机到学校。故选C。32.B【解析】句意:史蒂文擅长运动,他会打篮球和踢足球,跑得非常快。考查情态动词。must必须;can能,会;should应该;may可以。根据“Steve is good at sports”可知,会打篮球和踢足球,故选B。33.C【解析】句意:我的阿姨是个厨师。她能做好吃的食物。考查词义辨析以及情态动词后接动词的用法。cook厨师(名词)/烹饪(动词);cooker炊具。根据a可知,第一空填单数名词,且此处表示阿姨是厨师。can后接动词原形,故选C。34.B【解析】句意:家里可能有人,因为灯亮着。考查情态动词。maybe也许,大概,通常位于句首;may be也许是,可能是;can’t be不可能是;may也许,可以。根据“There...somebody at home”可知,“There may be...”表示“可能有……”,此处表示推测家里可能有人,因为灯亮着。故选B。35.B【解析】句意;许多年前,这里的空气清新,水清澈。我们可以看到蜜蜂在跳舞,听到鸟儿在唱歌。考查情态动词及非谓语动词。根据第一个空空前的“could”可知,此处应用动词原形;感官动词后加省略to的不定式作宾补,表示强调动作的完整性和过程;感官动词后加现在分词作宾补,表示正在进行的动作,根据句意可知,此处表示跳舞和唱歌的动作正在进行,所以B项符合。故选B。36.A【解析】句意:你不必在饭后洗所有的盘子。考查情态动词。have to必须;must必须;may可以;has to必须,动词三单形式。have to有人称、数、时态的变化,而must、may等情态动词没有。由don’t可排除B、C项,助动词后应用动词原形have to。故选A。37.A【解析】句意:我哥哥星期天不必起那么早。考查情态动词。have to不得不,动词原形;has to不得不,动词三单;had to不得不,过去式;must必须,情态动词。空前有助动词否定式,排除D,have to的否定形式是前面加助动词,故选A。38.D【解析】句意:——Jimmy,我们需要一个动作片演员。你会功夫吗?——对不起,我不会。考查情态动词。Must必须;May可以;Should应该;Can能,会。根据回答“Sorry, I I can’t.”可知此处的一般疑问句用can表示询问,故选D。39.A【解析】句意:——今天下午我必须洗所有的衣服吗?——不,你不必。考查一般疑问句的回答。Must开头的一般疑问句,否定回答时不用mustn’t,用don’t have to和needn’t。故选A。40.C【解析】句意:——我们能谈谈图书馆里的书吗?——不,我们不能。我们必须保持安静。考查一般疑问句。由“Can we talk about…”可知,由Can提问,答语为can相应形式,排除A和B;又由“We have to be quiet”可知,在图书馆不能大声说话,应作否定回答。故选C。41.B【解析】句意:现在正在唱歌的那个人不可能是格林先生。他已经去北京了。考查情态动词。根据“The one who is singing now…be Mr. Green. He has gone to Beijing.”可知,格林先生去北京了,所以那不可能是他,情态词can一般用于否定句和疑问句中,而must只能用于肯定句中,因此排除选项C、D;此处表否定推测,应用can’t。故选B。42.C【解析】句意:——这建筑真漂亮!这是干什么用的?——可能是酒店。但我不确定。考查情态动词辨析。must be必须;has to be必须是;may be可能;can’t be不可能。根据“But I’m not so sure.”可知,此处表示不确定推测,用may be。故选C。43.B【解析】句意:玩具车一定是约翰的。他是野餐时唯一的小男孩。考查情态动词辨析。can’t不可能;must一定;might可能;could可能。根据“He was the only little boy at the picnic.”可推知,玩具车一定是约翰的,表示有把握的肯定推测用must。故选B。44.B【解析】句意:为了实现我们的梦想,我们不应该停留在我们做过的事情上。考查情态动词。may not可能不;should not不应该;need not不必;could not不能。根据“rest on what we have done.”可知是不应该停留在已经做过的事情上。故选B。45.A【解析】句意:你能说大声一点吗?我不能听得很清楚。考查动词辨析。can’t不能;mustn’t禁止;shouldn’t不应该;needn’t不需要。根据“Could you please speak a little louder ”可知,因为不能听清,因此请求对方说大声一点,应用情态动词can’t表示“不能”。故选A。46.A【解析】句意:——打搅一下,你可以告诉我在哪里可以寄信吗 ——当然,向左转。在第五路上有一个邮局。考查could的用法和情景交际。could可以;will将要,会;Sure当然;Sorry抱歉;Sounds great听起来很棒; Good idea好主意。根据“...you please tell me where I can post a letter”可知,此处是问路,表示委婉语气用could。根据“Turn left. There is a post office on Fifth Road.”可知,回答者愿意帮忙,因此“sure (当然)” 符合语境。故选A。47.C【解析】句意:当我们和别人说话时,我们应该使语言柔和。考查词汇辨析。hard坚硬的;soft柔软的;soften (使)变软,动词;harden (使)变硬,动词。根据“our language when we talk to others.”可知,和别人说话的时候,应该使语言柔和一些,情态动词should后跟动词原形。故选C。48.A【解析】句意:——你会什么乐器?——我会拉小提琴。考查情态动词。can能、会;play弹奏,动词原形;may可以、可能;play弹奏,动词原形;can能、会;playing弹奏,动名词或现在分词;may可以、可能;playing弹奏,动名词或现在分词。在英语中,询问某人会什么乐器时,通常使用情态动词“can”表示能力,后接动词原形。故选A。49.D【解析】句意:这个女孩在黑夜不敢一个人出去。考查dare的用法。dare作情态动词,后接动词原形,且用于否定句和疑问句中,一般不用于肯定句;作实义动词,后接不定式作宾语。原句是肯定句,故此处dare应是实义动词,故排除AB;主语“The girl”是单数,谓语动词用三单形式。故选D。50.A【解析】句意:——你必须每天打扫教室吗?——是的。我们通常在课后打扫它。考查动词辨析。have to不得不,必须;has to动词三单形式;must必须;can能够。Do是助动词,位于句首构成一般疑问句,所以这里不能用must或can,因为这两者构成一般疑问句都是放在Do的位置;Do是助动词,后跟动词原形。故选A。51.D【解析】句意:——莉莎能说汉语吗?——不,她不能。考查一般疑问句及回答。问句speak“说”是实义动词,需用助动词或情态动词构成一般疑问句;结合Lisa是单数第三人称,助动词需用does或can,可排除前两项;回答用does或can的相关形式,C项前后不一致,可排除;故选D。52.A【解析】句意:你可以告诉我一些关于野生动物的事情吗?本题考查情态动词的用法。tell告诉,为动词原形;telling为动名词;to tell为不定式;told为过去式。“Could you please do sth. ”意为“你能做某事吗?”,用于委婉地提出请求,情态动词could后用动词原形。故选A。53.B【解析】句意:——你能在这条河里游泳吗?——不,我不能。太危险了。考查一般疑问句的回答。Can you...的肯定回答为Yes, I can,否定回答为No, I can’t。结合“It’s too dangerous.”可知应作否定回答,故选B。54.D【解析】句意:那时我买不了录音机,因为我身上没有钱。考查情态动词。can“能”;cannot“不能”;could“能”,过去式;couldn’t“不能”,过去式。当can表示能力时,过去式是could。根据“because I had no money with me then.”可知,没有钱,买不了录音机,且由“had”可知是一般过去时。故选D。55.B【解析】句意:我现在很忙,我哥哥为你做这件事好吗?考查动词辨析。will助动词“将要”,和动词原形一起构成谓语,用于一般将来时;shall助动词“将,会”,用于第一、三人称疑问句中,表征求意见、提出建议;must情态动词“必须”;may情态动词“可以”。根据“...my brother do it for you”,是征求对方意见,且“my brother”是第三人称,故选B。56.C【解析】句意:我们不能浪费水。我们应该节约它。考查情态动词。can可以;may可能;mustn’t禁止,不能;needn’t不必。根据“We should save it.”可知,此处指不能浪费水。故选C。57.C【解析】句意:我的英语老师希望我们课后能经常说英语。考查hope的用法。“hope”后面通常不直接跟“sb to do sth”的结构,而是使用“hope that sb will do sth”或“hope that sb can do sth”的结构来表达“希望某人做某事”,that可以省略,其中sb为宾语从句的主语,应该用人称代词主格,结合选项可知,C选项符合。故选C。58.D【解析】句意:在上学的日子里,我们必须穿校服,但在周末我们不必穿。考查情态动词。must必须;mustn’t千万不要;have to不得不;don’t have to不必这么做。 根据“On school days, we must wear school uniforms,”及but判断,这里是表示转折,说明上学的时候要穿校服,周末不必要穿。故选D。59.A【解析】句意:萨拉胃疼。所以她不应该吃冰淇淋。考查主谓一致及情态动词。根据“Sara”可知,空一处主语是三单,动词用三单has;根据“Sara ... a stomachache.”可知,胃疼不应该吃冰淇淋,空二处用shouldn’t。故选A。60.B【解析】句意:现在正在下雨,所以我不得不待在家里。考查情态动词辨析。can’t不能;have to不得不;mustn’t禁止。根据“It’s raining now, so I…stay at home.”可知,此处指现在正在下雨,所以“我”不得不待在家里。故选B。61.D【解析】句意:我们应该更认真,否则我们会在实验中犯同样的错误。考查情态动词词义辨析。might可以;can能够,可以;may可以;should应该。根据“or we will make the same mistake in the experiment.”可知,我们应该更加细心一点。空处表示“应该”的含义。故选D。62.B【解析】句意:——王老师,我们明天必须穿校服吗?——不,你们不必。只有在每周一穿。明天是周二。考查情态动词。mustn’t表示禁止;needn’t不必;can’t不能;shouldn’t不应该。以Must开头的一般疑问句,否定回答用needn’t。故选B。63.A【解析】句意:——哦,不,我坐错车了。我现在可以下车了吗?——对不起。公共汽车开动了,你必须在下一站下车。考查情态动词辨析。can可以;should应该;must必须。根据“I get off now”及“Sorry. The bus is moving, and you have to get off at the next bus stop”可知,询问是否可以下车,表示委婉语气,故选A。64.A【解析】句意:——打扰了,我如何才能去到地坛公园?——沿着这条路走,你便不会错过它。考查情态动词辨析。can能够;must必须;may可以;need需要。根据“How ... I get to Ditan Park ”可知,此处指如何能到地坛公园,can符合语境。故选A。65.C【解析】句意:当你离开教室时,你必须把灯关掉。考查情态动词。can可以;may可能;must必须;would将会。根据“When you leave the classroom”可知离开教室时关灯是一种必要的行为,表示一种义务或规定。故选C。66.B【解析】句意:——今晚你能来参加我的聚会吗?——对不起,我不能。 我必须去开会。考查情态动词。Must必须;Can能够;Need需要;Shall将,会。根据“Sorry, I can’t.”可知,此处应用“Can”放于句首进行提问。故选B。67.B【解析】句意:外面太吵了。我睡不着。考查动词短语。go to bed上床睡觉;fall asleep入睡;go to asleep表达错误;fall sleeping表达错误。根据“It's so noisy outside.”外面太吵了,可知是不能入睡,因此fall asleep符合题意,情态动词can't后接动词原形;故选B。68.A【解析】句意:你最好不要在阳光下看书。考查情态动词后接动词原形。read读,动词原形;to read不定式;reading动名词/现在分词。had betternot.do sth“最好不要做某事”固定搭配,填动词原形read。故选A。69.B【解析】句意:当我十岁的时候,我会骑自行车。考查情态动词。can能够,会;could能够,可以,can的过去式;should应该;must必须。结合“when I was ten”可知,此处表示“会骑车的能力”,且时态为一般过去时,需用can的过去式could。故选B。70.A【解析】句意:——Jimmy会弹吉他吗?——不,他不会。考查一般疑问句的否定回答。can表示能力时,含有can的一般疑问句的否定回答用can’t。故选A。71.B【解析】句意:——妈妈,我必须打扫房间吗?——不,你不必。考查情态动词。mustn’t禁止,不要;needn’t不必;can’t不能;don’t不。一般疑问句用must构成,否定回答用needn’t,表示“没有必要”。故选B。72.A【解析】句意:你能不能别这么吵?考查情态动词后接动词原形的用法。will是情态动词,后接动词原形,否定是在will后接not,故选A。73.C【解析】句意:——那边那个女人是谁?她是Mary吗?——不可能是她。她去了北京。考查情态动词。could能、可以;must肯定;can’t不可能;may not可能不。根据“Is she Mary ”和“She has gone to Beijing.”可知,Mary去北京了,所以那个女士不可能是Mary。此处表示否定推测“不可能”。故选C。74.A【解析】句意:——你能和我一起打网球吗?——对不起,我不能。考查情态动词。could能够;can能够。第一空根据“you please play tennis with me ”可知,表示委婉请求,用could更好;根据“Sorry”可知,表示的是否定的意思,could用于疑问句表示委婉语气,在肯定或否定回答时用can、can’t。故选A。75.B【解析】句意:你不必买下周的电视指南。我已经买了一本。你可以读我的。考查情态动词。have to不得不;needn’t不必;must必须;mustn’t禁止。根据“I have already bought a copy. You can read mine.”可知让对方读自己的,由此推出提醒对方不必买,用needn’t。故选B。76.C【解析】句意:你最好晚上不要出去,因为很黑。考查情态动词had better的用法。根据“You’d better...”可知,had better do sth“最好做某事”,had better后面接动词原形,排除选项B和D;又此处表达否定意义“最好不要外出”,had better not do sth.故选C。77.A【解析】句意:—— 我们什么时候交论文?—— 铃声一响,你的论文就必须交上来。考查被动语态和时间状语从句。根据“hand in”和“paper”之间的关系可知,是动宾关系,“paper”作主语,因此此空用被动语态;根据“must”一词可知,情态动词后加动词原形,因此第一空be handed in符合句意;根据“as soon as引导时间状语从句”可知,时间状语从句的时态用一般现在时,主语“the bell”是第三人称单数,因此rings符合句意。故选A。78.B【解析】句意:鲍勃喜欢边看电视边吃甜的零食。我认为他最好戒掉这个习惯。考查省略句和情态动词词组用法。根据空格前的“while”和空格后的“TV”,可知此处用while doing sth.结构,是while sb. is/was doing sth.的省略形式,省略前提是从句的主语与主句的主语一致,第一空填watching,排除A/D选项;第二空用had better do sth.“最好做某事”,后接动词原形。故选B。79.C【解析】句意:——你通常怎样去学校?——我的学校很远。我不得不乘公共汽车去学校。考查情态动词。must必须,强调主观;don’t have to无需;have to不得不,动词原形;has to不得不,动词三单。根据“My school is far away.”可知,我不得不乘公共汽车去学校,是客观上的“不得不”,又因为主语是“I”,故用have to的原形。故选C。80.B【解析】句意:——今天下午我必须呆在办公室吗?——不,你不需要。考查情态动词must的否定回答。mustn't禁止;needn't不必;don't need不必;can't不能。情态动词must的否定回答,应用needn't。故选B。21世纪教育网(www.21cnjy.com)21世纪教育网(www.21cnjy.com) 展开更多...... 收起↑ 资源预览