新初中英语语法知识—情态动词的基础测试题附答案
初二情态动词练习题及答案
初二情态动词练习题及答案一、选择题1. – _______ I go to the party tonight?– No, you _______. You have to finish your homework.A. Can; mustn'tB. May; mustC. Can; can'tD. May; can't2. Tom _______ swim when he was 5 years old.A. couldB. canC. mayD. might3. – _______ I borrow your pencil?– Of course you _______.A. Can; mayB. May; canC. Could; couldD. Might; can4. We _______ see the stars very clearly in the city because there is too much light pollution.A. mustB. can'tC. may notD. don't have to5. _______ I watch TV before I finish my homework?A. MustB. WillC. Can'tD. Should二、填空题1. You _______ finish your vegetables if you want dessert.2. _______ we go to the beach tomorrow if it doesn't rain?3. I'm not sure if I _______ make it to the party tonight. I might have another appointment.4. He _______ have been tired after running for three hours.5. – _______ I join the school band?– Absolutely! You have a great voice.三、改错题1. I musted finish my homework before I could go out and play.2. May I borrow your pen? – Certainly. You can borrowing it.3. She cannot to come to the party because she has a piano lesson.4. You should to take an umbrella with you. It might rain later.5. He shouldn't not eat too much junk food. It's bad for his health.四、翻译题1. 你可以帮我一下吗？2. 我可以去朋友家玩吗？3. 我们应该如何处理这个问题？4. 你可以告诉我作业的答案吗？5. 他可能会迟到。
新初中英语语法知识—情态动词的基础测试题含答案
一、选择题1．—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club.A．Can; couldn’t B．Could; can’tC．Could; couldn’t D．Can; needn’t2．—Have you heard about the temperature of the earth will rise to 59℃ in 2020?—Don’t worry! The news _______ be true.A．must not B．may not C．needn’t D．will not3．You have finished most of the work, so you ____ start working so early tomorrow. You may come at 9 :00.A．can't B．mustn't C．needn't D．couldn't4．The designer has tried every possible way to make the robot light, so you _____ worry about its weight.A．must B．may C．can’t D．needn’t5．—Is that cap Bob’s?—No, it ________ be his. His is blue.A．can’t B．mustn’t C．needn’t D．may not6．You look quite tired. You'd better ________ a good rest.A．stop to have B．stop having C．to stop to have D．to stop having 7．—I can't stop smoking, doctor.—For your health, I'm afraid you ________.A．must B．can C．may D．need 8．—Jenny, you _________ push your way onto the bus.—I’m really sorry about it.A．mustn’t B．needn’t C．may not9．—Doesn’t Frank like staying at home and looking after his little sister?—_______, but he ________ because both of his parents work.A．Yes; has to B．No; has toC．Yes; doesn’t have to D．No; doesn’t have to10．— I wonder if these are Jim's glasses.—They _____his. He doesn't wear glasses.A．might be B．could be C．can't be11．It is 11:00 p.m now. Peter hasn't come back yet. His mother ______ be very mad at him. A．may B．can C．must D．need 12．—Could I call you by the first name?—Yes, you .A．will B．could C．may D．might13．— Must I finish the homework now?— .You can do it later.A．No, you needn’t B．Yes, you must C．No, you can’t 14．When I write down what I am showing thanks to, it’s always for things that money______buy.A．needn’t B．shouldn’t C．may not D．can’t15．— Will Jim come to Yangzhou for a holiday?— He ________come, it depends on how much homework he will have.A．may B．should C．must D．need16．Will you please________them________the Birdwatching Society?A．inviting; join B．to invite; to join C．invite; to join D．to invite; join 17．一Hurry up, Mark! Let's cross the road as quickly as possible.一No，you . Don't you see the light is still red?A．couldn't B．wouldn't C．mustn't D．needn't 18．—Must I sleep now? —No, you________.A．needn't B．mustn't C．can't D．may not 19．—________ David be the new chairperson of the Students’ Union?—He _______ be, but I’m not sure.A．Can; can’t B．Can; mayC．May; must D．May; mustn’t20．---You look very pretty, if I say so.---Thanks a lot for saying that.A．must B．may C．will D．have to 21．Even the top student can't work out this problem, so it________ be too difficult. A．must B．may C．can D．need22．The milk tastes bad. You’d better_______.A．throw it away B．to throw it awayC．throw them away D．to throw them away【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【分析】【详解】句意：——杨小姐，我能从图书馆借这些书吗？——对不起，你不能。
最新初中英语语法知识—情态动词的知识点训练附答案(1)
A．mustB．mayC．canD．need
20．—Could I call you by the first name?
—Yes, you.
A．must; mustB．will; will
C．need; needD．might; might
18．—Who is the lady over there? Is it Miss Wang?
—It __________be her. Miss Wang is much taller.
A．needn'tB．mustn'tC．shouldn'tD．can't
9．—Jack must be in his office, I think.
—No, hebe in the office. He flew to Canada this morning.
A．needn'tB．shouldn'tC．can'tD．mustn't
10．—I’d like ________ Guo Jingming’sTiny Times.
解析：C
【解析】
【分析】
11．Everyone______ be polite to their parents.
A．couldB．mayC．shouldD．can
12．—Must we finish the work right now?
—No, you ________. You can do it tomorrow.
最新初中英语语法知识—情态动词的基础测试题及答案解析(2)
一、选择题1．Since the road is muddy,it ________last night, ________?A．must be rained; wasn’t it B．must have rained; didn’t itC．must rained; didn’t it D．must have rained; wasn’t it2．Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dang erous. A．mustn’t B．ought not to C．needn’t D．don’t have to 3．You have finished most of the work, so you ____ start working so early tomorrow. You may come at 9 :00.A．can't B．mustn't C．needn't D．couldn't4．— Do you think it is safe to shop online?— I think so. On Taobao, customers return goods with no questions asked，but they ______ pay delivery costs.A．can’t; can B．must; must C．can; have to D．mustn’t; can 5．—Is Wendy in the classroom now?—I’m not sure. She ________ be there. I saw her in the lib rary ten minutes ago.A．may not B．must not C．shall not D．would not 6．The designer has tried every possible way to make the robot light, so you _____ worry about its weight.A．must B．may C．can’t D．needn’t7．—________your house be cleaned right now？—No,it needn't.It may be cleaned this afternoon．（）A．Must B．May C．Can8．—Can we walk across the road now?—No, we . We have to wait until the light turns green.A．couldn’t B．needn’t C．shouldn’t D．mustn’t9．You look quite tired. You'd better ________ a good rest.A．stop to have B．stop having C．to stop to have D．to stop having 10．(2018·山东临沂) Could you please speak a little louder? I ______ hear you very well. A．can’t B．mustn’tC．shouldn’t D．needn’t11．— Mom, I got a big box from express(快递). What is it?—I’m not sure. It ________be a present from your grandmother.A．should B．might C．must D．will12．Even the top student can't work out this problem, so it________ be too difficult. A．must B．may C．can D．need13．—I feel tired.—You ________ go to bed so late.A．must B．shouldn’t C．should14．The flowers ________ every day, or they will die.A．must water B．can be wateredC．should water D．must be watered15．-_________ you help me with my homework?-Of course if I __________.A．Could; could B．Can't; can C．Could; can D．Can; could 16．—The food ________be delicious . You ate it up .—You bet . My mum cooked it for me .A．must B．may C．can D．need17．–Is Mike coming to the fashion show tomorrow?--I’m not sure. He ______ not come.A．must B．can C．may D．should 18．—Must I hand in my reports today?—No, you ________.A．mustn’t B．can’t C．shouldn’t D．don’t have to 19．—Could you help me download some Taylor Swift’s songs from Ku Gou?—Sorry, people download music from the Internet without paying, because it’s against the law. A．wouldn’t B．needn’tC．mustn’t D．couldn’t20．一Already five people in the taxi, but the driver managed to take me as well.一Terrible, and it be an uncomfortable journey.A．can B．should C．must D．need21．—Who is the lady over there? Is it Miss Wang?—It __________be her. Miss Wang is much taller.A．needn't B．mustn't C．shouldn't D．can't 22．—Hi, Lucy, may I sit here?—No, ________. The seats are for teachers and parents.A．you needn't B．you aren't C．you mustn't D．you don't【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【分析】【详解】句意：由于道路泥泞，昨晚一定下雨了，是吗？考查情态动词表推测以及反意疑问句。
新初中英语语法知识—情态动词的单元检测附答案
一、选择题1．—Look! Mrs. Smith is standing in front of the teaching building.—It______ her. She has gone to Egypt for her holiday.A．must be B．mustn’t be C．can be D．can’t be 2．Since you are very tired, you ______ finish the work today.A．needn’t B．may not C．mustn’t D．can’t3．―I can't stop smoking, Doctor.―For your health, I'm afraid you .A．must B．can C．need D．have to 4．―I didn’t pass the driving test again.―Don't worry. Just like the weather, life be beautiful all the time.A．can't B．needn't C．shouldn't D．mustn't 5．I’ve bought a nice necklace for Jo’s birthday. She _____like it, but I’m not sure.A．can B．may be C．might D．must6．All passengers_____ go through safety check before they take a plane.A．may B．can C．must D．need 7．You______ worry about your lessons. Be careful next time and you will get a good mark. A．don’t need to B．not need C．needn’t to D．don’t need 8．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 9．—Tom, we’re going shopping at eight, right?—Yeah, but I ______ be a little late, so don’t wait for me.A．may B．should C．mustn’t10．Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous. A．mustn’t B．ought not to C．needn’t D．don’t h ave to 11．I see the blackboard. I need to have my glasses.A．can B．can’t C．must D．mustn’t 12．I’m sorry, children over 1.4 meters________pay the full price for the show.A．may B．must C．can D．ought to 13．—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club.A．Can; couldn’t B．Could; can’tC．Could; couldn’t D．Can; needn’t14．Since the road is muddy,it ________last night, ________?A．must be rained; wasn’t it B．must have rained; d idn’t itC．must rained; didn’t it D．must have rained; wasn’t it15．—I feel tired.—You ________ go to bed so late.A．must B．shouldn’t C．should16．The flowers ________ every day, or they will die.A．must water B．can be wateredC．should water D．must be watered17．—Must I hand in my reports today?—No, you ________.A．mustn’t B．can’t C．shouldn’t D．don’t have to 18．—Could you help me download some Taylor Swift’s songs from Ku Gou?—Sorry, people download music from the Internet without paying, because it’s agai nst the law. A．wouldn’t B．needn’tC．mustn’t D．couldn’t19．— May I watch TV for a while?— No, you __________. You have to finish your homework first.A．can’t B．needn’t C．mustn’t D．won’t20．—I often see Maria in the library, and she _________ like reading best.—That’s right.A．need B．may C．must D．can21．－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; may22．— Mom, I got a big box from express(快递). What is it?—I’m not sure. It ________be a present from your grandmother.A．should B．might C．must D．will【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【分析】【详解】句意：——看！史密斯太太正站在教学楼的前面。
最新初中英语语法知识—情态动词的真题汇编附答案解析
一、选择题1．The milk tastes bad. You’d better_______.A．throw it away B．to throw it awayC．throw them away D．to throw them away2．—Must I finish my homework this evening?—No,you ________.You have a three﹣day holiday.A．won't B．mustn't C．needn't3．—I’d like ________ Guo Jingming’s Tiny Times.—You had better________ his books. The stories he tells are far from real life.A．buying, don’t read B．to buy, not readC．buying, not read D．to buy, not to read4．—Must I finish the work today, Mum?—No, you ________.You can finish it tomorrow.A．mustn't B．can't C．shouldn't D．needn't5．-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A．mustn’t B．needn’t C．can’t D．don’t6．The designer has tried every possible way to make the robot light, so you _____ worry about its weight.A．must B．may C．can’t D．needn’t7．You______ worry about your lessons. Be careful next time and you will get a good mark. A．don’t need to B．not need C．needn’t to D．don’t need 8．—________your house be cleaned right now？—No,it needn't.It may be cleaned this afternoon．（）A．Must B．May C．Can9．---Mum, must I finish my homework today?---No, you . Tomorrow is Sunday and you may have a rest today.A．shouldn’t B．mustn’t C．can’t D．don’t have to 10．— I wonder if these are Jim's glasses.—They _____his. He doesn't wear glasses.A．might be B．could be C．can't be11．—Sorry, Ms Wang. I left my homework at home. Must I hand it in today?—No, you_______ . You_______ bring it here tomorrow.A．mustn’t; should B．needn’t; mu st C．mustn’t; may D．needn’t; can 12．—Could I call you by the first name?—Yes, you .A．will B．could C．may D．might13．— I would like________ to see a movie.—It’s too late. You’d better ________alone.A．to go, go B．go, not go C．to go, not go D．going, go 14．— May I have some wine?— No, you . You have to drive home later.A．shouldn't B．needn't C．mustn't D．may not 15．—Jack must be in his office, I think.—No, he be in the office. He flew to Canada this morning.A．needn't B．shouldn't C．can't D．mustn't 16．—Must I start now?—No, you_______________.A．mustn't B．can't C．needn't D．must 17．Everyone______ be polite to their parents.A．could B．may C．should D．can18．—The food ________be delicious . You ate it up .—You bet . My mum cooked it for me .A．must B．may C．can D．need19．— Will Jim come to Yangzhou for a holiday?— He ________come, it depends on how much homework he will have.A．may B．should C．must D．need 20．—Must I hand in my reports today?—No, you ________.A．mustn’t B．can’t C．should n’t D．don’t have to 21．—Is Wilson on duty in class today?—It________be him. It's his turn tomorrow.A．must B．can't C．should D．needn't22．— Mom, I got a big box from express(快递). What is it?—I’m not sure. It ________be a present from your grandmother.A．should B．might C．must D．will【参考答案】***试卷处理标记，请不要删除一、选择题1．A解析：A【解析】【详解】句意：牛奶味道不好。
新初中英语语法知识—情态动词的知识点训练附答案(2)
一、选择题1．He like coffee. I see him drink a cup at times.A．must B．may C．can’t D．mustn’t2．Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous. A．mustn’t B．ought not to C．needn’t D．don’t have to 3．You have finished most of the work, so you ____ start working so early tomorrow. You may come at 9 :00.A．can't B．mustn't C．needn't D．couldn't4．―I can't stop smoking, Doctor.―For your health, I'm afraid you .A．must B．can C．need D．have to5．―I didn’t pass the dri ving test again.―Don't worry. Just like the weather, life be beautiful all the time.A．can't B．needn't C．shouldn't D．mustn't6．—Is that cap Bob’s?—No, it ________ be his. His is blue.A．can’t B．mustn’t C．needn’t D．may not7．---Mum, must I finish my homework today?---No, you . Tomorrow is Sunday and you may have a rest today.A．shouldn’t B．mustn’t C．can’t D．don’t have to 8．You look quite tired. You'd better ________ a good rest.A．stop to have B．stop having C．to stop to have D．to stop having 9．—I can't stop smoking, doctor.—For your health, I'm afraid you ________.A．must B．can C．may D．need10．-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A．mustn’t B．needn’t C．can’t D．don’t 11．—Susan, someone i s waiting for you on the phone. It_______ be your sister, but I’m not sure.—Oh, please tell her to call me_______ because I’m busy now.A．might; later B．must; later C．might; late D．must; late 12．—Mum, I’ve signed for a big box by Future Express (快递). Wh at’s in it?—I’m not sure. It ________be a present from your brother.A．need B．must C．may D．will13．—Look! Mrs. Smith is standing in front of the teaching building.—It______ her. She has gone to Egypt for her holiday.A．must be B．mustn’t be C．can be D．ca n’t be14．It is 11:00 p.m now. Peter hasn't come back yet. His mother ______ be very mad at him.A．may B．can C．must D．need15．— May I have some wine?— No, you . You have to drive home later.A．shouldn't B．needn't C．mustn't D．may not 16．—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club.A．Can; couldn’t B．Could; can’tC．Could; couldn’t D．Can; needn’t17．—I feel tired.—You ________ go to bed so late.A．must B．shouldn’t C．should18．— Must I go home? — No, you ________.A．can’t B．mustn’t C．don’t D．needn’t19．---I heard they went skating in the mountains last winter.---It ______ true because there was little snow there.A．may not be B．won’t be C．couldn’t be D．will be20．— Will Jim come to Yangzhou for a holiday?— He ________come, it depends on how much homework he will have.A．may B．should C．must D．need21．一Hurry up, Mark! Let's cross the road as quickly as possible.一No，you . Don't you see the light is still red?A．couldn't B．wouldn't C．mustn't D．needn't 22．—Hi, Lucy, may I sit here?—No, ________. The seats are for teachers and parents.A．you needn't B．you aren't C．you mustn't D．you don't【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【详解】句意：他可能喜欢咖啡。
新初中英语语法知识—情态动词的基础测试题含答案解析(2)
一、选择题1．Since the road is muddy,it ________last night, ________?A．must be rained; wasn’t it B．must have rained; didn’t itC．must rained; didn’t it D．must have rained; wasn’t it2．―I didn’t pass the driving test again.―Don't worry. Just like the weather, life be beautiful all the time.A．can't B．needn't C．shouldn't D．mustn't3．—________your house be cleaned right now？—No,it needn't.It may be cleaned this afternoon．（）A．Must B．May C．Can4．—Is that cap Bob’s?—No, it ________ be his. His is blue.A．can’t B．mustn’t C．needn’t D．may not 5．—Can we walk across the road now?—No, we . We have to wait until the light turns green.A．couldn’t B．needn’t C．shouldn’t D．mustn’t6．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 7．—Hi, Lucy, may I sit here?—No, ________. The seats are for teachers and parents.A．you needn't B．you aren't C．you mustn't D．you don't 8．—Susan, someone is waiting for you on the phone. It_______ be y our sister, but I’m not sure.—Oh, please tell her to call me_______ because I’m busy now.A．might; later B．must; later C．might; late D．must; late 9．—Look! Mrs. Smith is standing in front of the teaching building.—It______ her. She has gone to Egypt for her holiday.A．must be B．mustn’t be C．can be D．can’t be10．-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A．mustn’t B．needn’t C．can’t D．don’t 11．—Jack must be in his office, I think.—No, he be in the office. He flew to Canada this morning.A．needn't B．shouldn't C．can't D．mustn't12．－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; may13．It’s raining all day, so I ________ stay at home.A．can’t B．has to C．have to14．When I write down what I am showing thanks to, it’s always for things that money ______buy.A．needn’t B．shouldn’t C．may not D．can’t 15．— Must I go home? — No, you ________.A．can’t B．mustn’t C．don’t D．needn’t 16．---I heard they went skating in the mountains last winter.---It ______ true because there was little snow there.A．may not be B．won’t be C．couldn’t be D．will be 17．–Is Mike coming to the fashion show tomorrow?--I’m not sure. He ______ not come.A．must B．can C．may D．should 18．一Hurry up, Mark! Let's cross the road as quickly as possible.一No，you . Don't you see the light is still red?A．couldn't B．wouldn't C．mustn't D．needn't 19．一Already five people in the taxi, but the driver managed to take me as well.一Terrible, and it be an uncomfortable journey.A．can B．should C．must D．need20．—We've prepared all kinds of foods for the picnic.—Do you mean I___ bring anything?A．can't B．needn't C．mustn't D．won't 21．—Could I call you by the first name?—Yes, you .A．will B．could C．may D．might 22．—Jenny, we buy Mom presents. We can clean the house from top to bottom.—Good idea! It’s a special present for Mother’s Day.A．can’t B．mustn’tC．shouldn’t D．needn’t【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【分析】【详解】句意：由于道路泥泞，昨晚一定下雨了，是吗？考查情态动词表推测以及反意疑问句。
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一、选择题1．The milk tastes bad. You’d better_______.A．throw it away B．to throw it awayC．throw them away D．to throw them away2．-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A．mustn’t B．needn’t C．can’t D．don’t3．―I didn’t pass the driving test again.―Don't worry. Just like the weather, life be beautiful all the time.A．can't B．needn't C．shouldn't D．mustn't4．I hope you __________ to my birthday party.A．to come B．can come C．comes D．are come 5．—Is Wendy in the classroom now?—I’m not sure. She ________ be there. I saw her in the library ten minutes ago.A．may not B．must not C．shall not D．would not 6．—________your house be cleaned right now？—No,it needn't.It may be cleaned this afternoon．（）A．Must B．May C．Can7．—Can we walk across the road now?—No, we . We have to wait until the light turns green.A．couldn’t B．needn’t C．shouldn’t D．mustn’t 8．---Mum, must I finish my homework today?---No, you . Tomorrow is Sunday and you may have a rest today.A．shouldn’t B．mustn’t C．can’t D．don’t have to 9．—Tom, we’re going shopping at eight, right?—Yeah, but I ______ be a little late, so don’t wait for me.A．may B．should C．mustn’t 10．—Must I finish the work today, Mum?—No, you ________.You can finish it tomorrow.A．mustn't B．can't C．shouldn't D．needn't 11．You __ drive your car so fast. It's very dangerous.A．wouldn't B．shouldn't C．couldn't D．mightn't 12．－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 13．—The book report is very important. You ________ write it carefully.—But I ________ hand it in now.A．must; must B．have to; mustC．must; have to D．have to; have to14．—Jack must be in his office, I think.—No, he be in the office. He flew to Canada this morning.A．needn't B．shouldn't C．can't D．mustn't15．It’s raining all day, so I ________ stay at home.A．can’t B．has to C．have to16．— Must I finish the homework now?— .You can do it later.A．No, you needn’t B．Yes, you must C．No, you can’t17．When I write down what I am showing thanks to, it’s always for things that money______buy.A．needn’t B．shouldn’t C．may not D．can’t18．—The food ________be delicious . You ate it up .—You bet . My mum cooked it for me .A．must B．may C．can D．need19．Will you please________them________the Birdwatching Society?A．inviting; join B．to invite; to join C．invite; to join D．to invite; join 20．（2017 • 湖北省宜昌市中考）—Life is becoming convenient with the Internet.—That’s true! Almost everything be done online.A．must B．would C．should D．can21．—I often see Maria in the library, and she _________ like reading best.—That’s right.A．need B．may C．must D．can22．— Mom, I got a big box from express(快递). What is it?—I’m not sure. It ________be a present from your grandmother.A．should B．might C．must D．will【参考答案】***试卷处理标记，请不要删除一、选择题1．A解析：A【解析】【详解】句意：牛奶味道不好。
你最好把它扔掉。
考查had better和人称代词宾格。
throw away意为“扔掉”，根据所给空前面的had better后面接动词原形，排除B和D，由milk是不可数名词，所以用it来代指，排除C，故选A。
2．C解析：C【解析】【详解】句意：--听! 狼在叫! --它不可能是狼，因为狼从来不会在这个时候出来。
A. mustn’t禁止；B. needn’t没有必要；C. can’t不可能；D. don’t构成一般现在时的否定句。
根据“because a wolf never comes out at this time因为狼从来不会在这个时候出来”，可推断它不可能是狼，故选C。
【点睛】情态动词表推测的用法：can表示“可能”；can’t表示“不可能”；may表示“可能”，must表示“一定”，注意mustn’t表示“禁止”不表示推测，表示否定推测要用can’t.3．A解析：A【解析】【详解】句意：——我驾照考试又失败了。
——别担心。
就像天气一样，生活也不可能一直是美丽的。
考查情态动词。
can't不可能；needn't不必；shouldn't不应该；mustn't一定不能。
根据句意，应是不可能一直美丽。
故选A。
4．B解析：B【解析】【分析】考点：考查动词。
【详解】试题分析：句意：我希望你能来参加我的生日聚会。
hope to do sth希望做某事；hope that 从句，希望……。
但不能说hope sb to do sth；从句主语you，所以谓语动词不能用comes单数形式；come是实意动词，前面不能用are；所以选B。
5．A解析：A【解析】【详解】句意：—温迪现在在教室吗？—我不确定。
她可能不在那里，十分钟前我在图书馆见过她。
考查情态动词表推测。
may not可能不；must not一定不要；shall not将不会；would not将要、会、就会，表示虚拟、假设、条件等。
根据回答句“I’m not sure”，可推测后句应该是说：她可能不在那里。
是对现在情况的推测，may not“可能不”。
故选A。
6．A【解析】【详解】句意：——你的房子必须现在打扫吗？——不，不必。
可以今天下午打扫。
考查情态动词辨析。
must 必须；may 可以；can 能。
根据下文回答needn't 不必，可知，上文的一般疑问句中用助动词must表示“必须”。
故选A。
【点睛】情态动词must表示“必须”，由must引起的疑问句中，肯定答语用must，否定答语用needn’t或don’t have to，表示“不必”。
7．D解析：D【解析】【分析】【详解】句意：-我们现在能过马路了吗？-不，我们不能，我们要等到交通灯变绿。
couldn’t不能；needn’t不需要，不必；shouldn’t不应该；mustn’t禁止，不要。
根据句意We have to wait until the light turns green可知，在红灯的时候是禁止过马路的，因此这里的语气比较强，故应选D。
8．D解析：D【解析】【分析】【详解】句意：——妈妈，我今天必须完成作业吗?——不，你不必这么做。
明天是星期天，你今天可以休息一下。
考查情态动词辨析。
A. shouldn’t不应该，表建议；B. mustn’t一定不，表禁止；C. can’t不能，表示不允许；D. don’t have to不必，指没有必要。
回答must引起的一般疑问句，如果要作否定回答，一般是用needn’t（不能用mustn’t）或not have to。