八年级英语下情态动词could的用法及练习
专题12 语法重点反身代词和情态动词should could用法 100题 -八年级英语
2021-2022学年八年级英语下学期期末考点大串讲（人教版）专题12 语法重点：反身代词和情态动词should could用法100题难点一：反身代词1．（2022·江苏·盱眙县教师发展管理中心研训部八年级期末）—Did you enjoy ________ in Beijing last week?—Yes, I had great fun there.A．myself B．yourself C．ourselves D．themselves2．（2022·山东济南·八年级期中）—Who helped Lucy with her homework?—No one. She did it by ________.A．itself B．himself C．herself D．themselves3．（2021·辽宁大连·八年级期末）Sally is no longer a little girl. She can look after ________ very well. A．himself B．myself C．yourself D．herself4．（2021·云南省昆明市官渡区教师进修学校八年级期末）—These days, millions of people are watching EURO 2020 (欧洲杯) on TV.—That’s true. Watching it is just as enjoyable as playing football ________.A．it B．themselves C．itself D．them5．（2021·广西·贺州市平桂区教育科学研究所八年级期末）—Who teaches you English?—Nobody. I teach ________.A．me B．my C．myself D．yourself6．（2021·河北·赞皇县教育局教研室八年级期末）Mary hurt _________ when she played basketball yesterday morning.A．himself B．herself C．ourselves D．itself7．（2021·湖南·醴陵市教育局教育教学研究室八年级期末）She couldn’t read by ________ even at the age of ten. A．her B．himself C．herself8．（2021·湖北·天门市教育科学研究院八年级期末）—Who came to your office today, Mrs. Li?—A boy did. He hurt ________ in P.E. class.A．myself B．yourself C．himself D．herself9．（2021·河北·石家庄市第二十八中学八年级期末）His name is James, but he calls ________ Jim. A．himself B．herself C．myself D．yourself10．（2021·重庆·彭水苗族土家族自治县教师进修学校八年级期末）The little girl can’t finish her homework by ________. So her mother often helps her.A．myself B．sheself C．her D．herself11．（2021·陕西西安·八年级期末）I think we should learn to relax ________ when we are tired.A．we B．us C．our D．ourselves12．（2021·北京门头沟·八年级期末）The boy is too young to dress ________.A．he B．him C．his D．himself13．（2021·北京大兴·八年级期末）My father was proud of ________as he repaired the car alone.A．himself B．herself C．yourself D．myself14．（2021·河北·青县教育局教研室八年级期末）Our parents don’t allow us to play by ________ near the river. A．myself B．ourselves C．yourselves D．themselves15．（2021·吉林·永吉县教师进修学校八年级期末）—How is your new job, Danny?—Great. The work is easy.A．itself B．yourself C．myself16．（2021·湖南·通道侗族自治县教育科学研究室八年级期末）The policeman didn’t think about ________. He only thought about saving a life.A．him B．himself C．his17．（2021·广西·天峨县教育局教研室八年级期末）Lucy enjoyed ________ at her birthday party last Sunday. A．her B．she C．herself D．hers18．（2021·甘肃·武山县教育局教研室八年级期末）We enjoyed ________ in the party last night.A．we B．us C．our D．ourselves19．（2021·广西·贺州市平桂区教育科学研究所八年级期中）Our P.E. teacher is really kind. She tells us to be careful and not to hurt ________ in P.E. class.A．we B．us C．our D．ourselves20．（2021·黑龙江·克东县第二中学八年级期中）Judy is a kind girl and she always pushes ________ to help more persons.A．himself B．myself C．herself21．（2021·广东北江实验学校八年级期中）At times, students may find ______ easy to hurt ______ in PE classes. A．it; them B．it; themselves C．that; them D．that; themselves22．（2021·山东菏泽·八年级期中）—Does Susan likes Jimmy?—No. She thinks he only thinks of ________ but never cares about others.A．her B．herself C．himself23．（2021·山东淄博·八年级期中）She taught ________ English last year, and she learnt very ________. A．herself; fast B．herself; fastly C．her; fast D．her; fastly24．（2021··八年级期中）Good doctors think more of others than ________.A．they B．them C．themselves D．theirs25．（2021·山东济南·八年级期中）— Who taught you Japanese?— Nobody. I learned it by _________.A．myself B．my C．me D．I26．（2021·山东济南·八年级期中）—Lily looks nervous. What’s up?—She will take an important exam, but I don’t think she should push ________ so hard.A．she B．her C．herself D．hers27．（2021·山东济南·八年级期中）—Jim, who taught your sister and brother to play the piano?—Nobody. They learned it all by ________.A．myself B．herself C．himself D．themselves28．（2021·山东济南·八年级期中）— Who helped you clean the classroom after school?— My classmates all went to the library, so I cleaned it all by ________.A．me B．mine C．myself D．yourself29．（2021·山西·交城县教学研究办公室八年级期中）Linda was unlucky. She cut _________ on some broken glass.A．myself B．herself C．himself30．（2021·辽宁·绥中县教师进修学校八年级期中）You don’t need to worry about them. Let’s just relax and enjoy ________.A．myself B．yourself C．themselves D．ourselves31．（2021·河北·石家庄市第四十一中学八年级期中）Fast food ________ isn’t always bad for you, but eating too much of it is not good.A．yourself B．itself C．myself D．themselves32．（2021·辽宁·新宾县教师进修学校八年级期中）Don’t worry. They are old enough to look after________.A．themselves B．they C．them D．their33．（2021·广西·河池市宜州区教育局教学研究室八年级期中）Mary is a book lover. She could read by ________ at the age of four.A．him B．her C．himself D．herself34．（2021·河北·卢龙县教育和体育局教研室八年级期中）My aunt often cooks some delicious food _________ for us at home.A．herself B．ourselves C．himself D．yourselves35．（2021·河北·张家口市宣化区教学研究中心八年级期中）—Help _______ to some candies, children.—Thank you.A．myself B．ourselves C．yourself D．yourselves36．（2021·山东·郓城县教学研究室八年级期中）The song I Believe I Can Fly tells us that believing in ________ is very important.A．themselves B．herself C．ourselves D．himself37．（2021·广西·陆川县教研室八年级期中）— Look at this model ship. I made it all by ________ last week.— Wow! You are so smart.A．my B．myself C．mine D．I38．（2021·吉林·乾安县教师进修学校八年级期中）—Can I help you?—Thanks. But I decide to do it by ______.A．me B．I C．meself D．myself39．（2021·山东·菏泽市定陶区教育局教研室八年级期中）—What a nice model plane!— Thanks. I made it with 3D printer by ________.A．itself B．himself C．myself40．（2021·全国·八年级期中）Our teachers and parents will be proud of us because we have grown up and can be responsible for ________.A．themselves B．ourselves C．yourselves D．myself41．（2021·湖北·十堰市张湾区教育教学研究中心八年级期中）—Laura can speak French well. Who taught __________?—Nobody. She learned it by __________.A．her, her B．herself, herself C．her, herself D．herself, her42．（2021·贵州·德江县教育局教研室八年级期中）—Why do you like listening to music?—Because I can relax ________ when I feel tired.A．yourself B．herself C．himself D．myself43．（2021·贵州·玉屏侗族自治县教研室八年级期中）—We shouldn’t worry about Mary.—You are right. She is ________ to look after ________.A．enough big; her B．big enough; herselfC．enough old; her D．old enough; herself44．（2021·江苏·泰兴市洋思中学八年级期中）Boys and girls, I’ll tell you _________, and then you should finish it __________.A．how to do it; by yourself B．what to do; on your ownC．what to do it; by yourself D．how to do; alone45．（2021·江苏连云港·八年级期中）Wang Yaping, the first female taikonaut（中国航天员）to visit the Tiangong space station hopes her daughter can take good care of ________ and study hard.A．she B．her C．hers D．herself46．（2021·重庆八中八年级期中）—Does the book belong to ________ ?—Yes, she is teaching ________ Japanese because she is a cartoon fan.A．Tina; her B．Tina; herself C．Tina’s; her D．Tina’s; herself47．（2021·江苏盐城·八年级期中）—English is so important! You can teach ________ by taking an English-Chinese dictionary with ________. It can help you a lot.— Thank you for your advice.A．yourself; yourself B．you; you C．yourself; you D．you; yourself48．（2021·江苏无锡·八年级期中）When I was a child, my mother sometimes ________ me at home ________. A．left; by myself B．leaves; for myself C．left; for myself D．leaves; by me49．（2021·江苏无锡·八年级期中）—Could you tell me who taught________ English?—Nobody. I learn it ________.A．you; by myself B．your; me C．your; by myself D．you; me50．（2021·江苏无锡·八年级期中）Go and see the photo on the wall for ________, my kids!A．yourself B．itself C．themselves D．yourselves难点二：情态动词should could的用法51．（2021·湖北武汉·八年级期中）—It’s easy to get the flu this season.—Yeah, so we ________ take off the masks in crowded places.A．needn’t B．wouldn’t C．shouldn’t D．may not52．（2022·福建漳州·八年级期中）—What ________ I say when they interview (采访) me?—Take it easy. Just say what you think.A．should B．could C．need53．（2021·湖北武汉·八年级期中）—What ________ I do when my parents don’t agree with me?—You ________ talk with them and let them know your thought.A．should, could B．should, must C．could, shouldn’t D．could, couldn’t 54．（2021·湖北·武汉东湖新技术开发区教育发展研究院八年级期中）— I don’t care what he thinks.— Well, you ________. Some of his opinions are valuable.A．might B．would C．could D．should55．（2021·山东济南·八年级期中）—I’m too tired. I worked very late last night.—I think you ________ have a good rest.A．should B．need C．may D．mustn’t56．（2021·黑龙江·齐齐哈尔市碾子山区教师进修学校八年级期中）—Help me, doctor! I hurt my leg.—Don’t worry, dear. You ________ get ________ X-ray first.A．can, a B．should, an C．should, a57．（2021·江西·萍乡市湘东区教育教学研究室八年级期中）—I hurt my knee badly.—I think you ________ go to see a doctor.A．can B．have to C．should D．must58．（2021·广西·南丹县教学研究室八年级期中）You look tired. You stop to have a rest. A．wouldn’t B．would C．should D．shouldn’t59．（2021·湖北·天门市教育科学研究院八年级期末）—We ________ do eyes exercises on time everyday.—Yes. It’s good for our health.A．could B．should C．would D．will60．（2021·江西·峡江县教学研究室八年级期末）—I have a headache.—You ________ stay in bed and take a rest.A．can B．should C．may D．must61．（2021·山东青岛·八年级期末）Tom ________ a cold. He ________ lie down and have a rest.A．has; shouldn’t B．had; should C．have; shouldn’t D．has; should62．（2021·河北·青县教育局教研室八年级期末）The people of Wuhan need our help. We ________ take care of them.A．should B．shouldn’t C．could D．couldn’t63．（2021·江西·赣州市南康区教学研究室八年级期末）In England, you ________ say “mister” or “miss” when you meet someone for the first time.A．may B．should C．can D．will64．（2021·上海普陀·八年级期末）We ________ keep our classroom clean because it is our duty.A．can B．may C．should D．need65．（2021·湖北武汉·八年级期末）When I lived at home, I __________ watch TV whenever I wanted to. A．may B．could C．must D．should66．（2021·黑龙江·绥滨县教师进修学校八年级期末）—Mom, could I hang out with my friends tonight?—________. It’s not very safe.A．Yes, you could B．No, you couldn’tC．Yes, please D．Sorry, you can’t67．（2021·河北·赞皇县教育局教研室八年级期末）We will hold an English party next week. _________ you come to the party?A．Must B．Should C．Could D．May68．（2021·河北·石家庄市第二十八中学八年级期末）—________ I use the computer, Mom?—Yes, you can. But you have to finish your homework first.A．Should B．Could C．Must D．Would69．（2021·北京海淀·八年级期末）—________ you help me do the dishes?—Sure, no problem.A．Need B．Could C．Must D．May70．（2021·北京大兴·八年级期末）— ________ you please pass me the salt?— Yes, here you are.A．Can B．Should C．Must D．Could71．（2021·江西·萍乡市安源区教学研究室八年级期中）—I hurt my knee badly.—I think you ________ go to see a doctor.A．can B．have to C．should D．must72．（2021·湖北·十堰市张湾区教育教学研究中心八年级期中）—I don’t care what people think.—Well, you __________. You’re not alone in this world.A．can B．may C．should D．will73．（2021·广西·上思县教育科学研究所八年级期中）Don’t go out if you have the flu. You ________ stay at home. A．may B．may not C．should D．shouldn’t74．（2021·山东·巨野县教学研究中心八年级期中）You _______ drive so fast. There is a speed limit (限速) here. A．should B．shouldn’t C．need D．needn’t75．（2021·河北·卢龙县教育和体育局教研室八年级期中）We ________ love animals. They are our friends. A．would B．may C．should D．can76．（2021·江苏·南京钟英中学八年级期中）―I have a stomachache. What should I do?—You ________ drink cold water and ________ eat too much.A．had better; had better B．should; had betterC．had better not; shouldn’t D．shouldn’t; should77．（2021·天津市双菱中学八年级期中）—I don’t care what people think.—Well, you ________. You are not alone in the world.A．can B．should C．may D．will78．（2019·江苏·南京市第一中学八年级期中）It is cold today. You ________ put on your clothes.A．should B．would C．shouldn’t D．mustn’t79．（2021·浙江·八年级期中）—Dad, ten more minutes. I'm really tired.—You _________ not be late for your football class.A．may B．need C．should D．would80．（2019·江苏苏州·八年级期中）Everyone ________ have dreams. With dreams and hard work, any achievement ________ be reached.A．may; can B．might; should C．should; can D．must; have to81．（2018·江苏苏州·八年级期中）As a doctor, you ________ be patient as you can’t make any mistakes. A．would B．can C．should D．may82．（2022·山东济南·八年级期中）—Mom, ________ you please buy some snacks?—Sure.A．must B．may C．could D．should83．（2022·河北·石家庄市第二十七中学八年级期中）—________ I go to the movies with Anna tonight, mom?—Of course you ________. But don’t stay out too late.A．Could, can B．Should, should C．Could, would D．Can, should84．（2021·广西·巴马瑶族自治县教学研究室八年级期中）—Mom, ________ I go out for dinner with my friends?—Sure, but you ________ finish your homework first.A．may, could B．could, must C．can, mustn’t D．could, can85．（2021·四川省成都市第七中学初中学校八年级期中）—Could I drive a car to school, Mr. Green?—No, you ________. Teenagers under 16 aren’t allowed to drive.A．couldn’t B．can’t C．needn’t86．（2021·山东济南·八年级期中）—You _______ write him a letter to say you are sorry for it.—I’m not good at writing letters. I want to talk about it _______ the phone.A．can; over B．should; in C．could; on D．must; by87．（2021·山东济南·八年级期中）— Mom, ________ I play computer games?— Yes, you can. But you have to finish your homework first.A．must B．could C．will D．need88．（2022·山东·无棣县教育科学研究中心八年级期中）—Could you please tell me how to improve my spoken English?—Sorry, I __________. I have something important to do now.A．can’t B．needn’t C．mustn’t D．may not89．（2021·内蒙古·包头市青山区教育教学研究中心八年级期中）—Could you please help me fold the clothes?—Sure, I ________. I ________ fold my own T-shirts at the age of four.A．can; could B．could; could C．can; can D．could; can90．（2021·辽宁·绥中县教师进修学校八年级期中）—Could I have a look at my new shirt, Mom?—Sure, you ________.A．could B．should C．can D．must91．（2021·广西·河池市宜州区教育局教学研究室八年级期中）— I use your computer,Dad?—Yes, you can.A．Must B．Could C．Would D．Should92．（2021·河北·石家庄市第四十四中学八年级期中）— _______ you please turn down your radio? Your mother is sleeping.—Sorry, Dad.A．Must B．Should C．Need D．Could93．（2021·辽宁·黑山县教师进修学校八年级期中）—Could you please ________ the floor?— Sorry, I ________. I have to study for the test.A．to sweep, couldn’t B．to sweep, can’t C．sweep, couldn’t D．sweep, can’t94．（2021·吉林·乾安县教师进修学校八年级期中）—______ you please play tennis with me?—Sorry, I ______, I have to do my homework first.A．Could; can’t B．Could; couldn’t C．Can; don’t D．Could; could95．（2021·湖北·孝感市孝南区教学研究室八年级期中）— I have trouble sleeping recently.— You ________ listen to light music to relax before going to bed.A．must B．could C．mustn’t D．couldn’t96．（2021·山东·无棣县教育科学研究中心八年级期中）—Could you please ________ so much noise? —Sorry, we won’t.A．not to make B．not made C．not make D．don’t make97．（2020·陕西·无八年级期中）— Mom, ________ I invite my friend, Jack, to our home on Sunday?— Of course, you ________. Hope you will have a good time.A．must; can’t B．can; could C．may; must D．could; can98．（2021·江苏无锡·八年级期中）The little boy spoke in such a low voice that her mother ________ hardly (几乎不) understand what he said.A．must B．could C．might D．should99．（2021·江苏无锡·八年级期中）—We’ve got everything ready for the picnic.—Do you mean I ________ bring anything with me?A．can’t B．needn’t C．couldn’t D．mustn’t100．（2021·河北·北师大石家庄长安实验学校八年级期中）__________ you please take out the rubbish? It’s yourturn now.A．Must B．Should C．Could D．Might参考答案：1．B【解析】【详解】句意：——上周你在北京玩得开心吗？——是的，我在那里玩得很开心。
衔接试题02 情态动词should和could的用法-2020年暑假作业教材八年级英语(人教解析版)
衔接点02 情态动词should和could的用法1.—Mum, it’s too hot. ________ I swim in the lake?—No, you ___________. That’s too dangerous!A. Should; can’tB. Need; mustn’tC. Must; needn’tD. Could; mustn’t【答案】D【解析】句意：——妈妈，太热了。
我能在湖里游泳吗？——不，你不能，那太危险了。
考查情态动词辨析。
第一个空，根据Mum, it’s too hot. ____ I swim in the lake?可知句意为“妈妈，太热了。
我能在湖里游泳吗？”表示征询意见，委婉的请求，用could；第二个空，根据前面的No，以及后面的That’s too dangerous!可知应是“不可以”，表示禁止用mustn’t，故选D。
2.—Will you stay here for dinner with us?—Sorry, I ____________. My mother is waiting for me at home.A. mustn'tB. can'tC. needn'tD. couldn't【答案】B【解析】句意：——你愿意留下来和我们一起吃晚饭吗？——对不起，我不能。
我的母亲正在家里等我。
A. mustn't禁止；B. can't不能；C. needn't 不必；D. couldn't不能。
根据上文Will you stay here for dinner with us?及Sorry可知这里是说不能，用Sorry, I can't对不起，我不能。
根据题意，故选B。
3.According to the notice, guests at this hotel ______use the sports center at no extra cost.A. canB. shouldC. mustD. need【答案】A【解析】句意：根据通知，在这个宾馆的顾客可以不用额外地出钱就能使用体育中心。
初中英语语法情态动词can与could用法“三要点”
初中英语语法:情态动词can与could用法“三要点”情态动词can与could用法“三要点”can和could主要用三种用法，即表示能力、许可和推测。
从理论上说，could是can的过去式，但是在有些情况下，could也,可以不表示过去，而表示现在甚至将来。
下面我们就分别来学习它们的用法。
要点一:表示能力的用法1.表示现在的能力表示现在的能力或一般性能力，用can，但不用could。
如:Not all birds can fly.不是所有的鸟都会飞。
He can neither read nor write. 他既不认得字也不会写字。
2.表示将来的能力通常不用can或could，而用be able to的将来时态。
如 :I’11 be able to speak French in another few months.再过几个月我就会讲法语了。
但是，若表示现在决定将来是否有能力做某事，则可用can。
如:I haven’t got time today, but I can see you tomorrow. 我今天没有时间，但是明天可以见你3.表示过去的能力表示过去的能力，有时可用could，有时不能用could，使用时需要注意:①若表示过去的一般性能力，即过去想做某事就随时可做某事的能力，此时可以用could。
如:She could read when she was four.她4岁的时候就能看书了。
My father could speak ten languages. 我父亲从前会说10种语言。
②若表示过去的特定能力，即在过去特定场合做某事的能力，则不能用could，可改用was (were) able to do sth。
如:飞行员的伤势虽然很重，但是他还能够解释发生的一切。
误:A1though the pilot was badly hurt, he could explain whathad happened正:Although the pilot was badly hurt, he was able to explain what had happened.句中说的“能够”解释当时所发生的一切，显然是过去特定场合所具有的能力，所以不能用could。
英语语法学习----情态动词can, could的用法
英语语法学习----情态动词can, could的用法
（1）can的用法
can表示某人具有某种能力，意思为“能，会”，也表示客观的可能性，是“能够，可能”的意思。
后接动词原形，适用于所有人称。
（2）could的用法
could为can的过去式，表示“能，可以”，另外could可用来代替can，表示更为客气委婉的语气，用来提出要求，但回答时不能用could，而要用can.
Could you swim when you were young? No, I couldn’t. (问能力) Could I smoke here? No, you can’t. (表示委婉的请求)
其他回答：Go ahead./Help yourself./No problem./You’d better not./I’m afraid you can’t.
II、感叹句的用法
感叹句用来表示强烈的感情，能表达愤怒、悲哀、惊奇、厌恶和赞赏等。
句末用感叹号“！”，读时用降调。
在口语中常用省略句，后面的主语和谓语往往省略，有时只用一个词或词组表达。
（1）以what开头的感叹句，what作定语，修饰名词（名词前可有其他定语），可数名词单数形式前要加不定冠词a(an)。
句型：What (a/an)+adj.+n.(+s+v)! 如：
What a clever boy(he is )! 多么聪明的孩子！。
can与could的用法详解及情态动词有关习题
can与could的用法详解一、表示能力(1)表示现在的能力，用can：My sister can drive. 我妹妹会开车。
Everyone here can speak English. 这儿人人会说英语。
(2)表示将来的能力，通常不用can或could，而用be able to的将来时态：I’ll be able to speak French in another few months. 再过几个月我就会讲法语了。
One day people will be able to go to the moon on holiday. 总有一天人们可以到月球上去度假。
但是，若表示现在决定将来是否有能力做某事，则可用can：Can you come to the party tomorrow? 你明天能来参加我们的聚会吗？(3)表示过去的能力，有时可用could，有时不能用could，具体应注意以下几点：①若表示过去一般的能力(即想做某事就随时可做某事的能力)，可用could：Could you speak English then? 那时候你会说英语吗?②若表示过去的特定能力(即在过去特定场合做某事的能力)，则不能用could，而用w as (were) able to do sth，或用managed to do sth，或用succeeded in doing sth 等。
He studied hard and was able to pass the exam. 他学习很努力，所以考试能及格。
At last he succeeded in solving the problem. 他终于把那个问题解决了。
【注】could 不用来表示过去特定能力通常只限于肯定句，否定句或疑问句中，它则可以表示过去特定的能力：I managed to find the street, but I couldn’t find her house. 我想法找到了那条街，但没找到她的房子。
情态动词can和could的用法
情态动词can和could的用法在我们的日常英语交流中，情态动词can和could起着至关重要的作用。
它们既表示能力、许可和可能性，也用来表示礼貌和委婉。
下面我们将详细讨论can和could的用法和区别。
首先，让我们了解一下can和could的定义。
Can（能够）是一种表示能力、许可和可能性的动词，而could（能够）则是can的过去式。
在日常交流中，我们可以用can表示现在时态，而用could表示过去时态或者对现在事实的虚拟。
接下来，我们来看看can和could在现在时态的用法区别。
在表示能力时，两者几乎没有区别，都可以用来表示现在的能力。
例如：“I can swim.”（我会游泳。
）和“She could swim when she was 5.”（她五岁就会游泳了。
）然而，在表示许可和可能性时，could更为委婉和礼貌。
例如：“You could try this.”（你可以试试这个。
）在过去时态中，can和could的区别更加明显。
我们用could表示过去的可能性，而can则表示过去的能力。
例如：“She could have come to the party.”（她可能来了派对。
）和“He couldn"t climb the mountain.”（他不能爬山。
）在否定句和疑问句中，can和could的用法也有所不同。
我们可以用can"t表示对现在能力的否定，如：“I can"t swim.”（我不会游泳。
）而couldn"t则表示对过去的可能性或能力的否定，如：“She couldn"t have known.”（她不可能知道。
）在疑问句中，我们可以用can或者could，根据语境选择。
例如：“Can you help me?”（你能帮我吗？）或者：“Could you help me?”（你能帮我吗？）最后，我们来看看一些常见的错误和实用建议。
情态动词can与could用法归纳
情态动词c an与c ould用法归纳1. 表示能力can 与could 表示能力时，请注意以下用法：(1) 表示现在的能力，用c an：My sister can drive. 我妹妹会开车。
Everyone here can speak English. 这儿人人会说英语。
(2) 表示将来的能力，通常不用c an或c ould，而用b e able to的将来时态：I’ll be able to speak French in another few months. 再过几个月我就会讲法语了。
One day people will be able to go to the moon on holiday. 总有一天人们可以到月球上去度假。
但是，若表示现在决定将来是否有能力做某事，则可用can：Can you come to the party tomorrow? 你明天能来参加我们的聚会吗？(3) 表示过去的能力，有时可用c ould，有时不能用c ould，具体应注意以下几点：①若表示过去一般的能力(即想做某事就随时可做某事的能力)，可用c ould：Could you speak English then? 那时候你会说英语吗?②若表示过去的特定能力(即在过去特定场合做某事的能力)，则不能用c ould，而用w as (were) able to do sth，或用managed to do sth，或用succeeded in doing sth 等。
He studied hard and was able to pass the exam. 他学习很努力，所以考试能及格。
At last he succeeded in solving the problem. 他终于把那个问题解决了。
【注】c ould 不用来表示过去特定能力通常只限于肯定句，否定句或疑问句中，它则可以表示过去特定的能力：I managed to find the street, but I couldn’t find her house. 我想法找到了那条街，但没找到她的房子。
Unit 3 语法思维导图及专练(解析版)八年级英语下册基础知识专项讲练(人教版)
Unit3Could you please clean your room?（语法讲练）【知识导图】【要点拓展】can和could的用法区别一、表示能力1.表示现在的能力，用can。
I can't decide which to choose.我不能决定选哪个好。
2.表示过去的能力，一般用could。
Could you speak English then?你那时会说英语吗？二、表示许可。
1.表示请求允许，两者均可用，但是could语气更委婉。
Could I come in?我可以进来吗？2.表示给予允许，一般只用can，不用could。
Could I use your pen?Yes,of course you can.我可以用你的钢笔吗？是的，你当然可以用。
【奇思巧计】can的过去是could，用法不难请记清。
现在一般要用can，过去一般用could。
could表能力和可能，还表请求及征求。
一般疑问could提前，回答方式真多变。
【同步检测】一、单项选择1．—Could I smoke here?—____.Look at the sign”No smoking!”A．Yes,you may.B．Of course you can.C．No,you can’t.D．No,you couldn’t.【答案】C【详解】句意：——我能在这里吸烟吗？——不，你不能。
看那个标志“禁止吸烟”。
考查情景交际。
Yes,you may.是的，你可以；Of course,you can.你当然能；No,you can’t.不，你不能；No,you couldn’t.不，你不能。
根据句意…the sign“No smoking”可知答案应为否定的，排除A和B。
对话中用Could表示委婉的语气，答语中应用can，故应选C。
2．Could you please________the door?It’s too hot.A．open B．close C．to open D．to close【答案】A【详解】句意：你能打开门吗？太热了。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
情态动词could
情态动词could的用法很多，本单元我们主要学习情态动词could表示请求和许可的用法。
注意：Could you please ...?的否定式为Could you please not ...?意为“请你不要……，好吗？”。
如：Could you please not sing here?
【运用】
Ⅰ. 单项选择
1. David, _______ you please sweep the floor and take out the trash? (2019 新疆维吾尔自治区、新疆生产建设兵团)
A. could
B. may
C. might
D. must
2. —Could you please help me wash the car, Tony?
—_______. I’m studying for my coming English test now. (2019 四川眉山)
A. That’s right
B. I’m sorry
C. It doesn’t matter
D. Not at all
3. —_______ I take the magazines out of the reading room?
—I’m sorry you _______.
A. Could; can’t
B. Must; can’t
C. Must; shouldn’t
D. Could; shouldn’t
4. —Lucy, could you please teach me Chinese?
—_______. Let’s start today!
A. Of course not
B. No problem
C. Sounds boring
D. That’s right
5. —Mom, I don’t have any friends to play with. Could I have a pet dog?
—_______. Our apartment is too small.
A. It’s a good idea
B. I hope so
C. I’m afraid not
D. Sorry, I can’t
6. —I lost my pencil. Could I borrow yours, Jimmy?
—Yes, you _______. I just have two.
A. must
B. will
C. can
D. need
7. —Could we go to the concert tomorrow evening?
—_______. See you then.
A. All right
B. Not really
C. Have a good time
D. That’s all
8. Could you please _______ loudly in the library? The students are reading books.
A. talk
B. not talk
C. to talk
D. not to talk
Ⅱ. 根据情景提示，写出句子或将句子补充完整（部分答案不唯一）
1. 你想请求Dave这周末帮你学英语，你可以这样问：
_________________________ this weekend, Dave?
Dave同意你的请求，他会这样说：
___________________________________________.
Dave不同意你的请求，他会这样说：
___________________________________________. I have to go to the dentist.
2. 你晚上想和朋友去看电影，请求得到妈妈的允许，你可以这样问：
Mom, _______________________________ tonight?
妈妈允许你去，她会这样说：
___________________________________________. But you have to be back before nine o’clock.
妈妈不允许你去，她会这样说：
___________________________________________.
3. 你想请求Sam不要在你的车里吃东西，你可以这样问：
Sam, ______________________________ in my car?
Sam 同意你的请求，他会这样说：
___________________________________________.
答案
Ⅰ. 1-5 ABABC 6-8 CAB
Ⅱ. 1. Could you (please) help me with / learn English;
Yes, sure / Yes, I can / No problem / Of course / ...;
Sorry, I can’t / I’m afraid not / ...
2. could I go to the movies with my friend;
Yes / Sure, you can / Of course / ...;
Sorry / No, you can’t / ...
3. could you (please) not eat;
Sorry, I won’t do that。