外研版八年级初中英语情态动词讲义全含答案.doc

外研版八年级初中英语情态动词讲义全含答案一、选择题1Where is Tom? I am considering _ him about the result of the exam.Oh. You _. He has known it already.Ato tell; cantBtelling; needntCtell; mustntDtold; shouldnt2To my joy, we_ go to the bank. Mary has lent us some money.AshouldntBneedntCcouldntDwouldnt3You _ drive after drinking alcohol(酒). Its against the law.AmustntBneedntCcouldntDwouldnt4You _ be careful with the camera. It costs!AcanBwillCshouldDmay5Its of great importance to protect the environment. Each of us _ take an active part in it.AcanBmayCwouldDshould6Do we have to finish this today?Yes, you _ . Today is the last day.AwouldBmayCcanDmust7Hurry up, Jack! Lets cross the road as fast as possible.No, you _. Dont you see the light is still red?AcouldntBwouldntCmustntDneednt8Be careful! Fire _ be dangerous sometimes. OK. I will put it out right away.AmustntBshouldCcanDneednt9Will my car be ready by the end of the day?It _ be, sir. Ill call if theres any problem.AmustBcouldCshallDshould10We shouldnt throw any objects from the building. Even a small object _ cause serious injuries or death, when dropped from a great height.AmustBshouldCmayDneed11Our Chemistry teacher always tells us we _ be too hardworking before the exams.AmustntBshouldntCneedntDcant12_ I see your ID card? We have to check your personal information. Sure. Here you are.AMayBNeedCShouldDMust13 _ you give me a hand? I cant put up the poster by myself.No problem.ACouldBShouldCNeedDMust14May I have some wine to drink?No, you _. You have to drive home later.AmustntBneedntCcantDmay not15A lot of online resources _ be used either by teachers at school or parents at home.AcanBshouldCneedDmust16If you buy your mum an iRobot floor cleaner, she _ sweep the floor every day.AcantBmustntCneedntDshouldnt17Have you decided to take up teaching as career after graduation? I _ go abroad for further education instead. But it depends.AmustBshouldCmayDshall18Weve discussed every detail of this plan and have got everything ready. But still something _ go wrong. We still have to be very careful.AmustBshouldCwouldDmay19Amy, I hear youve got many foreign coins_ I have a look?Of course, Ill fetch them for youAMayBMustCShouldDNeed20When I was young, my father _ take me to climb the hill which was not far from our house.AmayBmustCwouldDshould21Shall we go camping this summer holiday?Nothing_be better.AshouldBcouldCmustDmay22 Ready? Lets get started, Martin. Swimming? I just _get used to it in winter.AcantBneedntCmustntDshouldnt23Dr. Zhong Nanshan once said, To prevent the spread of this disease, we_never be too careful.AcanBmayCmustDshould24Dont cross the road until the traffic lights turn green. A car_hit you.AneedBmayCshouldDmust25Dad, must we wait until the light becomes green? Yes, I am afraid we _. Thats the traffic rule.AmayBcanChave toDneed26In China, many parents complain that their children have to stay up late to do the homework. Dont worry. The government has realized the problem. Im sure there _ be good news soon.AcanBshouldCneedDmust27Who is singing next door? It sounds like a young girls voice.It _ be Jane. But she seldom sings English songs.AneedBmustCmayDcan28To avoid _, wed better _ the parents meeting online.Agather; holdBgathering; holdCgather; holdingDto gather; to hold29Hurry up, or we _ miss the beginning of the film.AshouldBmustCmayDhave to30You _ require others to do with the problem like you. Everyone has his own way.AmustntBneedntCmay notDshouldnt31 Why didnt you tell it to me earlier? Why _ I? I want to have my own secret.AcanBmayCshouldDshall32Mum, why do I have to wear a mask before entering the supermarket?For your health and safety, you _ be too careful.AshouldntBcantCmustntDneednt33According to the rule, used batteries _ be dropped in the red bin for harmful wastes.AmayBwouldCshouldDmight34 Listen! Tom _ be listening to the music while doing his homework. Lets go upstairs to remind him to turn it off.AshouldBcouldCwouldDmust35Suzy described every detail of the accident just now.Her memory _ be completely back.AshallBneedCmustDcould36Never throw objects from the building. Even a small object _ cause serious injuries, or death, when dropped from a great height.AmustBshouldCmayDneed37I dont care what people think.Well, you _ . Some opinions are worth weighing.AshouldBmightCcouldDwould38Will Jim come to Yangzhou for a holiday?He _come and it depends on how much homework he will have.AmayBshouldCmustDneed39Is it really necessary for me to go shopping with a mask on?Im afraid you _ in public. It is not only to protect yourself but also to protect others.AmustBshouldCcanDneed40I think all the students love the weekends because, to them, they _ get up early on Saturdays or Sundays.AmustntBdont needCneedntDcant41Is it usually warm in Yancheng in May?Yes. But it _ be rather cold sometimes.AmustBshouldCwouldDcan42Must we stop the Japanese government discharging nuclear waste water (排放核污水) into the Pacific Ocean?_. Because everyone should protect our earth and it is bad _ us to eat the polluted seafood and drink the waste water.AYes, we can; ofBNo, we mustnt; ofCYes, we must; forDNo, we neednt; for43Look at the floor, Tom! _ you watch TV while having a meal?AShouldBCouldCMustDMay44Sometimes smiles _ be false, hiding other feelings like anger, fear or worry.AshouldBwouldCmustDcan45 The sandstorm in Beijing is so serious this year. Yes, I wonder when we _ worry about the air we breathe.AcantBmustntCneedntDshouldnt46Could you tell me how to renew the library books?With pleasure. You _ come to our desk every time. Its easier to renew them online.AcantBmustntCneedntDshouldnt47Mum, I bought some strawberries on my way home.Oh, youre so sweet. But the strawberries _ be put into the fridge for freshness.AmustBcanCmayDneed48In China, many students have to stay up late to do their homework.No worries. The government has realized the problem. Im sure there _ be good news soon.AcanBshouldCmustDneed49Whos the man over there? Is that Mr. Black? It _ be him. Mr. Black is much taller than that man.AmayBmustCcantDmustnt50Most young people like shopping online because they _ spend much time going from shop to shop.AneedntBcantCmustntDshouldnt【参考答案】*试卷处理标记，请不要删除一、选择题1B解析：B【详解】句意：汤姆在哪里？我正在考虑告诉他考试的结果。哦。你不必。他已经知道这件事了。考查非谓语动词和情态动词。cant不可能；neednt不必；mustnt禁止；shouldnt不应该。consider doing sth.考虑做某事，第一空用telling；再由“He has known it already.”可知他已经知道考试结果，不必再告诉他，第二空用neednt。故选B。2B解析：B【详解】句意：使我高兴的是，我们不必去银行了。玛丽借给了我们一些钱。考查情态动词辨析。shouldnt不应该；neednt不必，不需要；couldnt不可能；wouldnt不会。由“Mary has lent us some money”可知，玛丽已经借给我们钱了，所以我们不必再去银行了。故选B。3A解析：A【详解】句意：你不准酒后开车。这是违法的。考查情态动词。mustnt不准；neednt不需要；couldnt不可能；wouldnt将不会。根据下文“Its against the law”可知，因为会违反法律，所以酒后驾车这个行为是禁止和不允许的，故选A。4C解析：C【详解】句意：你应该小心你的相机。它很贵！考查情态动词辨析。can可以；will将；should应该；may可能。根据“It costs!”可知相机很贵，应该小心。故选C。5D解析：D【详解】句意：保护环境是非常重要的。我们每个人都应该积极参与其中。考查情态动词。can能；may也许；would就会；should应该；根据“Its of great importance to protect the environment”保护环境非常重要；可知此处指“大家都应该积极参与”，表责任、义务；故选D。6D解析：D【详解】句意：我们一定要今天完成吗？是的，你们必须。今天是最后一天。考查情态动词辨析。would将；may也许；can可能，可以；must必须。根据“Today is the last day.”可知，必须今天完成，故选D。7C解析：C【详解】句意：快点，杰克！让那个我们尽快地过马路。不，你不能这样，你没有看到是红灯吗？考查情态动词。couldnt不能，不会；wouldnt不愿意；mustnt禁止，不要；neednt不需要，不必。根据下文“Dont you see the light is still red”可知，现在是红灯，禁止过马路，故选C。8C解析：C【详解】句意：小心！火有时候会很危险。好的。我马上把火扑灭。考查情态动词辨析。mustnt禁止；should应当；can会、能；neednt不需要。根据前句“Be careful!”可推知，应是说火有时候会很危险，故情态动词应用can。故选C。9D解析：D【详解】句意：我的车今天能修好吗？应该能，先生，如果有什么问题我会打电话给你。考查情态动词辨析。must必须，一定，表推测时，语气最肯定；could可能，表推测时，其意很不肯定；shall将，会；should应当，应该，表示推测时，其语气比较肯定，它通常指非常可能的事，并暗示其推测有一定的事实依据或者合乎常理。根据“Ill call if theres any problem”可知，是说话人按照事实有一定依据的推测，用should符合语境。故选D。10C解析：C【详解】句意：我们不应该从大楼上扔任何物体。当从很高的高度掉落时，即使一个小的物体可能导致严重的伤害或死亡。考查情态动词辨析。must必须；should应该；may可能；need需要。根据“Even a small objectcause serious injuries or death,when dropped from a great height”可知，从高空中掉落一个小的物体都有可能造成伤害或死亡，表示可能性用may，故选C。11D解析：D【详解】句意：我们的化学老师总是告诉我们考试前怎样用功都不为过。考查情态动词辨析。mustnt不能，表禁止；shouldnt不应该，表建议；neednt不必，指没有必要；cant不能，表没有能力或不许可。根据题干“webe too hardworking before the exams”，可知是“cant be too +形容词”结构，表示“再也不为过”。故选D。12A解析：A【详解】句意：我可以看你的身份证吗？我们必须检查一下你的个人信息。当然可以。给你。考查情态动词。may可以，表请求或许可；need需要，指有必要；should应该，表建议；must必须，强调主观意愿。根据答语“Sure. Here you are”，可推断问句是征求对方的许可，故选A。13A解析：A【详解】句意：你能帮我一把吗？我一个人贴不起海报。没问题。考查情态动词辨析。Could能、会（用在问句中表示委婉语气）；Should应该；Need需要；Must必须。根据“I cant put up the poster by myself.”可知，此处表示请求，用委婉语气表达“能”帮一下吗。故选A。14A解析：A【详解】句意：我可以喝点酒吗？不，你不能。你一会儿得开车回家。考查情态动词。mustnt不可以，表禁止；neednt不需要；cant不可能；may not可能不是。上句询问能否喝点酒，结合“drive home”可知，开车不能喝酒，表禁止，故用mustnt。故选A。15A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。考查情态动词词义辨析。can能，可以；should应该；need需要；must必须。根据“be used either by teachers at school or parents at home.”可知，指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。故空格处的意思是可以，能够。故选A。16C解析：C【详解】句意：如果你给你妈妈买一台扫地机器人，她就不必每天扫地了。考查情态动词辨析。cant不能；mustnt禁止；neednt不需要；shouldnt不应该。根据“If you buy your mum an iRobot floor cleaner”可知，买了扫地机器人，就不需要人工每天扫地了，故选C。17C解析：C【详解】句意：你决定毕业后从事教书工作了吗？我可能出国深造。但要看情况。考查情态动词。must 必须，一定；should 应该，shall的过去式；may 可能；shall 应该。根据“But it depends.”可知，出国深造的可能性不是很大，大概是50%左右，表示50%左右的可能性，“may”符合句意，故选C。18D解析：D【详解】本题考查：情态动词辨析。选项分析：A. must必须，一定。B. should应该；就；可能；将要。C. would 将，将会（will 的过去式）。D. may可以，能够。综合分析前后句， 可知此处填may最合适，完整句意为：Weve discussed every detail of this plan and have got everything ready.我们已经讨论了这个计划的每个细节，一切都准备好了。But still something may go wrong.但仍有可能出错。We still have to be very careful.我们还是要非常小心。正确答案为：D【点睛】would，could，must，might，may，can都可以表示“可能性”：按照可能性的大小可以排序为might、may、could 、can、should、would、must。也就是说，might表示最小的可能性，must则表示达到最大的可能性。如：He might be at home. 他或许在家（但是可能性不大）。He may be at home. 他或许在家（稍有那么一点儿可能）。He must be at home. 他一定在家。此外，它们还表示各自独特的意思：may / might 表示有应承，即“可以”；can / could 表示有能力，即“能够”；should 表示有义务，即“应该”；would 表示有愿望，即“愿意”；must 表示有必要，即“必须”。19A解析：A【分析】【详解】句意：埃米，我听说你有许多外国硬币，我可以看一看吗？当然，我去给你拿来。 考查情态动词辨析。May可以，表示请求许可；Must必须，强调主观愿望；Should应该，指主语的责任与义务；Need需要，必须。本题表示“请求”看看硬币，用may，故选A。20C解析：C【详解】句意：在我小的时候，我的父亲会带我去爬山，那离我们家不远。考查情态动词。may可能；must一定；would将要；should应该。本题考查情态动词的用法，由When I was young 可知，when引导的从句为一般过去时，因此主句应为过去的某种时态；再结合句意及选项，可知C选项符合题意，would+动词原形是过去将来时；故答案选C。21B解析：B【详解】句意：今天暑假我们去露营好吗？没有比这更好的了。考查情态动词辨析。should应该；could可以；must必须；may可能。根据Shall we go camping this summer holiday，可知，此空要对上文的建议表达自己的看法。否定词+比较级表示最高级的意思，此句表示“没有比这更好的了”，用could表示一种委婉的说法。故选B。22A解析：A【详解】句意：准备好了吗？我们开始吧，马丁。游泳？我只是不能习惯冬天游泳。考查情态动词。cant不能；neednt不必；mustnt禁止；shouldnt不应该。根据getusedtoitinwinter“习惯冬天游泳”可知，应该是“不能”习惯冬泳，用cant，故答案选A。23A解析：A【详解】句意：钟南山院士曾经说过:“要预防这一疾病的传播，我们多么小心也不为过。”考查情态动词。can能、能够；may可以；must必须；should应该。can的否定式和too或enough 连用表示“多么也不为过”，其他情态动词没有这种用法，故答案选A。24B解析：B【详解】句意：在交通灯变绿之前不要横穿马路。汽车可能撞到你。考查情态动词。need需要；may可能；should应该；must一定。分析句意可知，交通灯变绿之前横穿马路，汽车有可能会撞到你，故此处应用may表推测。故选B。25C解析：C【详解】句意：爸爸，我们一定要等绿灯吗？是的，恐怕我们必须这样做。这是交通规则。考查情态动词。may可能；can可以；have to必须；need需要；根据“must we wait until the light becomes green”及“Thats the traffic rule”可知，每个人都必须要遵守交通规则，应用have to，故选C。26D解析：D【详解】句意：在中国，许多家长抱怨他们的孩子不得不熬夜做家庭作业。别担心。政府已经意识到这个问题。我相信很快就会有好消息。考查情态动词。can能、会；should应当；need需要；must必须、一定；根据空前“Im sure”可推知，应是“there must be，一定有”，表示肯定的推测。故选D。27C解析：C【详解】句意：谁在隔壁唱歌？听起来像是一个年轻女孩的声音。可能是简。但是她很少唱英文歌。考查情态动词。need需要；must一定；may可能；can能，会；表示推测时，常用于否定句和疑问句中。根据“It.be Jane. But she seldom sings English songs.”可知，此处表示不确定的推测，且是肯定句，故选C。28B解析：B【详解】句意：为了避免聚会，我们最好在网上开家长会。考查非谓语动词及动词的基本形式。avoid doing sth.“避免做某事”；Wed better+动词原形，我们最好做某事；gather是动词，聚集；hold是动词，举行，第一空用动名词，第二空用动词原形，故选B。29C解析：C【详解】句意：快点，否则我们可能会错过电影的开头。考查情态动词。should应该；must必须；may可能；have to不得不。根据语境可知，此处表推测，故应用情态动词may。故选C。30D解析：D【详解】句意：你不应该要求别人像你一样来处理问题。每个人都有自己的方法。考查情态动词。mustnt不许，表禁止；neednt 不必；may not 也许不；shouldnt不应该；根据“ Everyone has his own way”每个人都有自己的方法；可知，此处指“不应该如此要求别人”。故选D。31C解析：C【详解】句意：你为什么不早点告诉我？ 我为什么应该告诉你？我想要保守我自己的秘密。 考查情态动词。can能够；may可以；should应该；shall将，会。根据“Why didnt you tell it to me earlier?”及“I want to have my own secret.”可知，此处应该是“我为什么应该告诉你？”故选C。32B解析：B【详解】句意：妈妈，为什么我进超市前要戴口罩？ 为了你的健康和安全，你再小心也不为过。考查情态动词辨析。shouldnt不应该；cant不能；mustnt不允许；neednt不必。根据“For your health and safety, you.be too careful.”可知，为了你的健康，你再怎么小心也不为过，“cant.too.”表示“再也不为过”。故选B。33C解析：C【详解】句意：根据规定，使用过的电池应丢弃在红色的有害废物箱中。考查情态动词辨析。may也许；would将会；should应该；might可能。根据“used batteriesbe dropped in the red bin for harmful wastes”可知，使用过的电池应丢弃在红色的有害废物箱中，故选C。34D解析：D【详解】句意：听！汤姆一定是一边做作业一边听音乐。让我们上楼去提醒他把音乐关掉。考查情态动词用法。should应该；could能够，可表示委婉语气或用于过去时中；would将会，将要；must必须，表示推测时，意为“一定”。由答语中的“turn it off”可知，此句是推测汤姆一定是在边听音乐边做作业，故选D。35C解析：C【详解】句意：苏西刚才描述了事故的每一个细节。她的记忆一定完全恢复了。考查情态动词辨析。shall将要；need需要；must必须，一定；could能。根据“Suzy described every detail of the accident just now.”可知，此处表示非常肯定的推测，故选C。36C解析：C【详解】句意：切勿将物体从建筑物中扔出去。从高处坠落时，即使是小物体也可能造成严重伤害或死亡。考查情态动词辨析。must必须；should应该；may可能；need需要。根据“Even a small object.cause serious injuries, or death, when dropped from a great height.”可知，从高空中掉落一个小的物体都有可能造成伤害或死亡，表示可能性用may，故选C。37A解析：A【详解】句意：我不在乎别人怎么想。嗯，你应该在乎。有些意见值得权衡。考查情态动词。should应该；might可能；could能；would将会，根据前面的“I dont care what people think”和后面的“Some opinions are worth weighing”可知，应该是“你应该在乎”，故选A。38A解析：A【详解】句意：吉姆会来扬州度假吗？他可能会来，这要看他有多少家庭作业。考查情态动词词义辨析。may可以，表达推测时，表示“可能”；should应该；must必须，表达推测时，表示“一定”；need需要。由答语后半句“it depends on how much homework he will have.”可知，此句是说吉姆来不来取决于作业的多少，所以是可能来，用may表示推测，故选A。39A解析：A【详解】句意：我真的有必要带着口罩去购物吗？恐怕在公共场合你必须如此。这不仅是保护自己，也是保护他人。考查情态动词。must必须；should应该；can可以；need需要。根据“It is not only to protect yourself but also to protect others.”可知在公共场合必须戴口罩。故选A。40C解析：C【详解】句意：我认为所有的学生都喜欢周末，因为对他们来说，他们不必在周六或周日早起。考查情态动词。mustnt禁止；don