小学英语情态动词知识点及练习
(完整)英语语法 情态动词及练习题
情态动词一、知识梳理/提炼1. can和could的用法表示能力或客观可能性,还可以表示请求和允许。
如：Can you finish this work tonight?Man cannot live without air.— Can I go now？— Yes， you can.注意:①could也可表示请求,语气委婉，主要用于疑问句，不可用于肯定句，答语应用can （即could不能用于现在时态的简略答语中）。
如：Could I come to see you tomorrow？Yes, you can。
(否定答语可用No， I'm afraid not。
）②can表示能力时,还可用be able to代替。
如:I'll not be able to come this afternoon。
2。
may和might的用法1)表示许可.表示请求、允许时，might比may的语气更委婉一些,否定回答时要用mustn't表示“不可以"、“禁止"、“阻止”之意.如：You may drive the car.— Might I use your pen? — No，you can’t/ mustn't. Yes, you can/may. 用May I .。
. 征询对方许可在文体上比较正式，在口气上比较客气。
在日常口语中,用CanI ... 征询对方意见在现代口语中更为常见.2) 用于祈使句中表示祝愿.如：祝你成功！ May you succeed！3)表示推测、可能（疑问句不能用于此意）。
他现在可能很忙. He may be very busy now。
3。
must和have to的用法1) 表示必须、必要。
如:You must come in time.回答must引出的问句时,如果是否定的回答，不能用mustn't,而要用needn't或don't have to。
小学情态动词的句型转换讲解及练习
小学情态动词的句型转换讲解及练习情态动词是英语语法中的一个重要组成部分，是文章中用于表达推测、猜测、建议等含义的动词。
小学阶段是英语语言研究的重要时期，因此了解情态动词的正确使用十分必要。
什么是情态动词情态动词是一种助动词，常常用于表示某种能力、必要性、愿望、推测等情况。
动词本身表示的是动作或状态，而情态动词则表示说话人的态度或语气。
常见的情态动词有：- can- could- may- might- must- shall- should- will- would情态动词的句型转换在句子中，情态动词的位置可以变化，因此我们可以利用这一点来进行句型的转换。
以下是一些常见的情态动词句型转换：1. 直述句→ 疑问句直述句：They can swim.疑问句：Can they swim?2. 直述句→ 否定句直述句：He should finish his homework.否定句：He should not finish his homework.3. 直述句→ 疑问句+否定句直述句：You may eat the cake.疑问句+否定句：May you not eat the cake?现在我们来做一些练，更好地掌握情态动词的句型转换。
练题1. 直述句：They can play the guitar.疑问句：否定句：2. 直述句：She should go to bed early.疑问句+否定句：3. 直述句：I will finish my homework tomorrow.否定句：疑问句+否定句：练答案1. 直述句：They can play the guitar.疑问句：Can they play the guitar?否定句：They cannot play the guitar.2. 直述句：She should go to bed early.疑问句+否定句：Shouldn't she go to bed early?3. 直述句：I will finish my homework tomorrow.否定句：I will not finish my homework tomorrow.疑问句+否定句：Won't I finish my homework tomorrow?以上是小学情态动词的句型转换讲解及练习，希望能对您有所帮助。
情态动词的用法及练习(附答案)
情态动词的用法及专项练习第1 & 2类:第3类1.could have p.p.①指过去某事有可能发生, 但并未．真的．．发生。
They could have won the race, but they didn't try hard enough.He could have studied harder, but he was too lazy and that's why he failed the exam.②指过去有能力做某事, 但并未真的．．．做过。
I could have stayed up late, but I decided to go to bed early.Julie could have bought the book, but she borrowed it from the library instead.③对过去的发生事情做出一种猜测，但实际上并不知道真假。
仅仅是做一种观点上的表达。
He could have got stuck in traffic.He could have forgotten that we were meeting today.He could have overslept.2. may / might have p.p.(用法与could have p.p.第③点相同)对过去的发生事情做出一种猜测，但实际上并不知道真假。
仅仅是做一种观点上的表达。
He might have got stuck in traffic.He might have forgotten that we were meeting today.He might have overslept.3. couldn't have p.p.渴望、期望做某事, 但由于外部原因不可能做成, 即便是很想做。
是一种虚拟语气。
I couldn't have arrived any earlier. There was a terrible traffic jam (= it was impossible for me tohave arrived any earlier).He couldn't have passed the exam, even if he had studied harder. It's a really, really difficult exam.4. should / ought to have p.p.有一个好主意，该做而没有做。
情态动词知识点练习题
情态动词知识点练习题一、情态动词单项选择题1．__________ you please take out the rubbish? It’s your turn now.A．Must B．Should C．Could D．Might【答案】C【解析】【分析】【详解】句意：你能把垃圾拿出去吗？现在轮到你了。
考查情态动词。
Must必须；Should应该；Could能，可以；Might可以。
Could you please…?你能做……吗?/请你做……，好吗？表示请求的句型，固定句型，故选C。
2．—I cannot find my pen. ________ I borrow yours?—Sure.A．Can B．Must C．Should D．Would【答案】A【解析】【详解】句意：——我找不到我的钢笔。
我可以借你的吗？——当然。
考查情态动词辨析。
can可以；must必须；should应该；would将。
根据“I borrow yours”可知，此处应用can表请求允许，希望能借对方的钢笔用一下，故选A。
3．You have worked for several hours. You’d better ________ the windows and have a good rest. A．stop to clean B．to stop cleaning C．stop cleaning D．to stop to clean【答案】C【解析】【分析】【详解】句意：你已经工作好几个小时了。
你最好停止擦窗户，好好休息一下。
考查固定搭配。
根据“had better do sth.”可知，此空需要动词原形；再者根据“have a good rest”和固定搭配“stop doing sth.”可知，是停止做某事，因此stop cleaning符合句意。
故选C。
4．—Mum, must I stay there the whole day?—No, you ________. You ________ come back after lunch, if you like.A．mustn’t; can B．needn’t; must C．needn’t; may D．mustn’t; might【答案】C【解析】【详解】句意：——妈妈，我必须一整天都待在那儿吗？——不，你没必要。
情态动词知识点练习
情态动词知识点练习一、情态动词单项选择题1．— 3,000 yuan for such a blouse! You ________ be joking.— It is made of silk, so it costs.A．can B．may C．must D．need【答案】C【解析】【详解】句意：——这样一件衬衫三千元!你一定是在开玩笑。
——这是丝绸做的，所以很贵。
考查情态动词。
can能；may可能；must必须，一定；need需要。
根据空格前的句子“3,000 yuan for such a blouse! ”可知，说话者持有一种怀疑的态度，故空格处表达的是“一定是在开玩笑”，must be“一定是”，故选C。
2．Life is like riding a bike. To keep our balance, we ________ keep moving.A．needn’t B．can C．must【答案】C【解析】【详解】句意：人生就像骑单车。
为了保持平衡，我们必须不断前进。
考查情态动词。
needn’t不必；can可以；must必须。
根据“Life is like riding a bike.”结合常识可知骑单车时为保持平衡必须不断前进，用must符合语境。
故选C。
3．—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A．can B．may C．can’t D．shouldn’t【答案】C【解析】【详解】句意：——那是周先生吗？——肯定不是他。
他去了北京。
考查情态动词。
can能，能够；may可能；can’ t不可能，表示推测；shouldn’t不应该；根据“He has gone to Beijing.”可知，那个人不可能是周先生，故选C。
4．—I have been to the Moon several times.—You ________ be joking! It is impossible!A．can B．may C．must【答案】C【解析】【分析】句意：——我已经到月球好几次了。
小学英语情态动词知识点及练习
情态动词【知识要点】:情态动词（Modal verbs）本身有一定的词义, 表示语气的单词。
但是不能独立作谓语, 只能和动词原形一起构成谓语。
情态动词用在行为动词前, 表示说话人对这一动作或状态的看法或主观设想。
情态动词虽然数量不多, 但用途广泛, 主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not.情态动词无人称和数的变化, 情态动词后面跟的动词须用原形, 否定式构成是在情态动词后面加 "not"。
疑问形式是将情态动词提至主语前。
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。
情态动词属非及物动词, 故没有被动语态。
【典型例题】:【专题一】:can和could的用法【例1】Can you lift this heavy box?(体力)【解析】表示能力(体力、知识、技能)【练习】1.Mary speak three languages.(知识)2... yo.skate?(技能)此时可用be able to代替。
Can只有一般现在时和一般过去式;而be able to 则有更多的时态。
I’ll not be able to come this afternoon.当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。
【例2】-----Can I go now?----.Yes.yo.can..No.yo.can’t.【解析】表示请求和允许。
此时可与may互换。
在疑问句中还可用could,might 代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。
【练习】---- I come to see you tomorrow?---.Yes.yo.....----No.yo..../I’.afrai.not.【例3】Can this be true?【解析】表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。
英语情态动词专题练习(及答案)含答案
英语情态动词专题练习(及答案)含答案一、选择题1．— Zoe, what do you think is the greatest advantage of shopping online?— At least I ______ spend much time going from shop to shop.A．shouldn’t B．can’t C．needn’t D．mustn’t2．To my joy, we_________ go to the bank. Mary has lent us some money.A．shouldn’t B．needn’t C．couldn’t D．wouldn’t 3．—Hurry up, Jack! Let’s cross the road as fast as possible.—No, you ________. Don’t you see the light is still red?A．couldn’t B．wouldn’t C．mustn’t D．needn’t 4．—The high school entrance examination is coming!— Yes, our teacher tells us we ________ be too careful while taking exams.A．mustn’t B．shouldn’t C．needn’t D．can’t5．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．Our Chemistry teacher always tells us we ________ be too hardworking before the exams. A．mustn’t B．shouldn’t C．needn’t D．can’t 7．—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．need8．—________ you give me a hand? I can’t put up the poster by myself.—No problem.A．Could B．Should C．Need D．Must 9．Exercise is helpful but it ________ be regular (规律的) exercise.A．must B．may C．can D．need10．You'd better __________ hard from now on, __________ you will fail the exam. A．work; and B．working; or C．working; and D．work; or 11．—Where is Tom? I am considering ________ him about the result of the exam.—Oh. You ________. He has known it already.A．to tell; can't B．telling; needn't C．tell; mustn't D．told; shouldn't 12．It’s of great importance to protect the environment. Each of us ________ take an active part in it.A．can B．may C．would D．should13．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 14．—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’t15．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 climbed16．—The high school entrance examination is coming!—Yes, our teacher tells us we _______ be too careful while taking exams．A．mustn't B．shouldn't C．needn't D．can't17．---Will you be back early this evening?---Yes, but I ________ be a little late. Our boss sometimes has extra work for us.A．may B．must C．need D．will 18．—Amy, I hear you've got many foreign coins．_______ I have a look?—Of course, I'll fetch them for you．A．May B．MustC．Should D．Need19．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．should20．You ______ pay too much attention to your pronunciation, as it is so important in the oral （口头的） test.A．shouldn’t B．mustn’t C．can’t D．needn’t 21．—Shall we go camping this summer holiday?—Nothing________be better.A．should B．could C．must D．may 22．—Would you please________in that way? That’s not s afe!—Sorry. I won’t do it any more.A．not driving B．not to drive C．no driving D．not drive 23．Think twice before making a decision, or you __________ get into trouble.A．may B．can't C．shouldn't D．mustn't 24．Don’t cross the road until the traffic lights tur n green. A car_______hit you.A．need B．may C．should D．must25．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 26．—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．can27．—Who is singing next door? It sounds like a young girl’s voice.—It _________ be Jane. But she seldom sings English songs.A．need B．must C．may D．can28．To avoid ________, we’d better ________ the parents’ meeting online.A．gather; hold B．gathering; hold C．gather; holding D．to gather; to hold 29．—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’t30．—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．should 31．— 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 32．—Must the children leave at six tomorrow morning?—No, they _______. They can have more time to get ready for the trip.A．can’t B．needn’t C．mustn’t D．may not 33．—Why didn’t you tell it to me earlier?— Why ________ I? I want to have my own secret.A．can B．may C．should D．shall34．—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A．can B．may C．can’t D．shouldn’t 35．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 36．—Is it usually warm in Yancheng in May?—Yes. But it _______ be rather cold sometimes.A．must B．should C．would D．can37．—Do we have to finish this today?—Yes, you ________ . Today is the last day.A．would B．may C．can D．must 38．—Will dad arrive home at 6 o’clock to have dinner with us this evening?— I think he will, but he ________ not. Sometimes he works extra hours.A．can B．must C．need D．may39．—Is it really necessary for me to go shopping with a mask on?—I’m afraid you ________ in public. It is not only to protect yourself but also to protect others. A．must B．should C．can D．need 40．Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined. A．may B．will C．can D．must 41．—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 42．For the safety of the passengers, objects like guns ________ be carried on board.A．may not B．needn’t C．might not D．mustn’t 43．—The article says that a person’s animal sign decides his personality.—You ________ read it for fun, but don’t believe in that.A．can B．must C．shouldn’t D．needn’t 44．—Mum, I bought some strawberries on my way home.—Oh, you’re so sweet. But the strawberries ________ be put into the fridge for freshness. A．must B．can C．may D．need45．—In China, many students have to stay up late to do their homework.—No worries. The government has realized the problem. I’m sure there ________ be good news soon.A．can B．should C．must D．need46．—________ I see your ID card? We have to check your personal information.—Sure. Here you are.A．May B．Need C．Should D．Must47．—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A．should B．might C．could D．would48．You ________ drive after drinking alcohol(酒). It’s against the law.A．mustn’t B．needn’t C．couldn’t D．wouldn’t49．—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．don’t ne ed; mend D．need; to mend50．—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【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【详解】句意：——佐伊，你认为网上购物最大的优势是什么？——至少我不需要花很多时间逛商店。
情态动词知识点练习
情态动词知识点练习一、情态动词单项选择题1．— Is the boy over there Tom? He often wears a jacket like that.— It _______ be him. He is absent from school today.A．needn’t B．shouldn’t C．mustn’t D．can’t【答案】D【解析】【详解】句意：——那边的男孩是汤姆吗？他经常穿那样的夹克。
——那不可能是他。
他今天没来上学。
考查情态动词。
needn’t不必；shouldn’t不应该；mustn’t禁止；can’t不可能。
根据“He is absent from school today”可知，推测那个男孩一定不是汤姆，否定推测用can’t，故选D。
2．—I cannot find my pen. ________ I borrow yours?—Sure.A．Can B．Must C．Should D．Would【答案】A【解析】【详解】句意：——我找不到我的钢笔。
我可以借你的吗？——当然。
考查情态动词辨析。
can可以；must必须；should应该；would将。
根据“I borrow yours”可知，此处应用can表请求允许，希望能借对方的钢笔用一下，故选A。
3．—________ I take this book away？—No, you mustn’t. You ________ read it only here.A．Must；can B．May；can C．Must；may D．Can；may【答案】B【解析】【详解】句意：——我可以带走这本书吗？——不，你不能。
你只能在这里阅读。
考查情态动词。
must必须；can能；may可以。
根据“No, you mustn’t”可知，第一空是用may引导的一般疑问句。
第二空表示“只能在这读”，故选B。
4．—We’ve ordered too much food. I ________ eat any more.—Never mind. Let’s take it home.A．can’t B．mustn’t C．needn’t D．shouldn’t【答案】A【解析】【详解】句意：——我们点的食物太多了。
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情态动词【知识要点】:情态动词（Modal verbs）本身有一定的词义，表示语气的单词。
但是不能独立作谓语，只能和动词原形一起构成谓语。
情态动词用在行为动词前，表示说话人对这一动作或状态的看法或主观设想。
情态动词虽然数量不多，但用途广泛，主要有下列： can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not.情态动词无人称和数的变化，情态动词后面跟的动词须用原形，否定式构成是在情态动词后面加 "not"。
疑问形式是将情态动词提至主语前。
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。
情态动词属非及物动词，故没有被动语态。
【典型例题】:【专题一】:can和could的用法【例1】Can you lift this heavy box?(体力)【解析】表示能力(体力、知识、技能)【练习】1.Mary speak three languages.(知识)2. you skate?(技能)此时可用be able to代替。
Can只有一般现在时和一般过去式;而be able to 则有更多的时态。
I’ll not be able to come this afternoon.当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。
【例2】-----Can I go now?----- Yes, you can. / No, you can’t.【解析】表示请求和允许。
此时可与may互换。
在疑问句中还可用could,might 代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。
【练习】---- I come to see you tomorrow?---- Yes, you .----No, you /I’m afraid not.【例3】Can this be true?【解析】表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。
【练习】This be done by him.How this be true?【专题二】may和might的用法：【例1】----M ight/ May I smoke in this room?---- No, you mus tn’t.【解析】表示请求和允许。
might比may语气更委婉,而不是过去式。
否定回答时可用can’t或mustn’t,表示“不可以,禁止”。
用May I...?征徇对方许可时比较正式和客气,而用Can I...?在口语中更常见。
【练习】---- I take this book out of the room?---- Yes, you . No, you【例2】May you succeed!【解析】用于祈使句,表示祝愿。
【例3】He may /might be very busy now.【解析】表示推测、可能性(不用于疑问句)。
might不是过去式,它所表示的可能性比may小。
【练习】1.Your mother not know the truth.2.He very busy now.他现在可能很忙。
【专题三】must和have to的用法：【例 1】The man be our teacher。
那个人一定是我们的老师。
【例 2】I study hard because of my dream .为了我的梦想我必须努力学习。
【例 3】1.You come in time.你必须准时过来【解析】：must表示必须、必要。
表示主观对事物的推测时，意为想必、一定，只用于肯定句中;表推测时，情态动词与动词原形(常为be动词)连用。
而have to强调客观需要。
【练习】:1.Her play is boring,I go now.2.Your mother be waiting for you now.3.I go home,because my father is ill.【例4】---Must we hand in our exercise books today?---Yes,you---No,you【解析】：在回答由must引出的问句时，如果是否定的，不能用mustn’t,而用needn’t,don’t have to.must是说话人的主观看法,而have to则强调客观需要。
【练习】:---Must he go to school now?---Yes,he---No,he .【专题四】should及其否定式用法【例 1】：I should help her because she is in trouble.【解析】：should表示应该、劝告、建议和命令。
【练习】:1.You go to class right away.2.I open the window?【专题四】need的用法【例1】：You needn’t come so early.【解析】need 作情态动词用时, 常用于疑问句、否定句。
在肯定句中一般用must, have to, ought to, should代替【练习】---- Need I finish the work today?---- Yes, you / No, you【专题五】should的用法【例1】I should help her because she is in trouble.【解析】should表示应该【练习】You take care of the baby.【例2】You should go to class right away.【解析】表示劝告、建议和命令。
在疑问句中常用should。
【练习】I open the window？【专题六】will和would的用法【例1】I will do anything for you.【解析】表示询问，请求,将要。
【练习】1. you pass me the book?2.She go to the library.【例2】would you tell me the way to the school?【解析】表示过去的意愿或委婉提问自我检测(一)用适当的情态动词填空。
1. Must I borrow the book with my ID card? No,you2. I use your car? Yes, you3. I go home now? No, you stay here and wait for the teacher.4.My mother is ill.I stay at home and look after her.5.I send an email to my friend.6. You take more exercise.7. you tell me how to get to the Park?8. We help each other.9. you like to go fishing with me?10. we play foot ball this afternoon?(二)按要求改写句子。
1.I can run fast.(否定句)I fast.2.You must return the book now.(一般疑问句)I return the book now?No,you .3.He can play basketball well.(一般疑问句)He basketball well?4.They must take the books out of the room.(否定句)They the books out of the room.5.He will get up early.(否定句）He get up early.(三)选择题。
1. I told Sally how to get here, but perhaps I _______ for her.A. had to write it outB. must have written it outC. should have written it ouD. ought to write it out2. —There were already five people in the car but they managed to take me as well.—It _______ a comfortable journey.A. can’t beB. shouldn’t beC. mustn’t have beenD. couldn’t have been3. It’s nearly seven o’clock. Jack _______ be here at any moment.A. mustB. needC. shouldD. can4. Johnny, you _______ play with the knife, you _______ hurt yourself.A. won’t; can’tB. mustn’t; mayC. shouldn’t; mustD. can’t; shouldn’t5. The fire spread through the hotel very quickly but everyone _______ get out.A. had toB. wouldC. couldD. was able to6. —When can I come for the photos? I need them tomorrow afternoon.—They _______ be ready by 12:00.A. canB. shouldC. mightD. need7. —I stayed at a hotel while in New York.—Oh, did you? You _______ with Barbara.A. could have stayedB. could stayC. would stayD. must have stayed8. —Are you coming to Jeff’s party?—I’m not sure. I _______ go to the concert instead.A. mustB. wouldC. shouldD. might9. I was really anxious about you. You _______ home without a word.A. mustn’t leaveB. shouldn’t have leftC. couldn’t hav e leftD. needn’t leave10. —Is John coming by train?—He should, but he _______ not. He likes driving his car.A. mustB. canC. needD. may11. A left-luggage office is a place where bags _______ be left for a short time, especially at a railway station.A. shouldB. canC. mustD. will12. I wonder how he _______ that to the teacher.A. dare to sayB. dare sayingC. not dare sayD. dared say13. When he was there, he _______ go to that coffee shop at the corner after work every day.A. wouldB. shouldC. had betterD. might14. It has been announced that candidates _______ remain in their seats until all the papers have been collected.A. canB. willC. mayD. shall15. How _______ you say that you really understand the whole story if you have covered only a part of the article?A. canB. mustC. needD. may16. —I hear you’ve got a set of valuable Australian coin. _______ I have a look?—Yes, certainly.A.DoB. MayC. ShallD. Should●答案解析●(一)、1.needn’t/don’t have to 2.Can can 3. May must 4.have to 5. will 6.should 7.can/could 8. must/should 9.Would 10.can(二)1.Can’t run 2.Must needn’t 3. Can play 4.can’t take5.wouldn’t(三)1. C。