一情态动词表示推测的用法及练习(must/can’t/may might could)
________表示一定;______ 表示可能;______ 表示不可能
二以Must I ……开头的句子；肯定回答：Yes,you______
否定回答：No,you ______ _____ ____/ No,you________.
1.―Whose notebook is this? ―It _______ Jim’s. It has his name on it.(2012贵州贵阳)
A. can’t be
B. must be
C. can be
2. —Is that your teacher? —That _____ be Mr. Wang. He has gone to Japan with his
wife
. (2012甘肃鸡西) A. can’t B. mustn’t C. may not
3. —Is Maria knocking at the door? (2012 湖北黄石)
—It ______ be her. She is in Australia now.
A. may not
B. needn't
C. mustn't
D. can't
4. —Is Jim coming by train? (2012四川凉山) —I’m not sure.
He_____ drive his car. A. must B. may C. need
5. —I think the man over there must be bob.
—it____ be him. he has ____ to Australia. （2011年山东省烟台市）
A. can’t；gone
B. can’t；been
C. may not；been
D. mustn’t; gone
6 –Is Mr. Brown driving here? (2008·安徽中考)
-I’m not sure. He _______ come by train.A. may B. shall C. need D. must
7 _______ I finish my homework now?--- No,you_____.Your work is over today.
A Can’t;must
B Must;don’t have to
C May ;couldn’t
D Couldn’t;could
三短暂性动词：buy（买）borrow（借）die（死）begin（开始）
join （加入）不能与how long /for +一段时间连用，要与how long
/for +一段时间连用，buy改为have ;borrow改为keep;其它的短暂性动词要用be的结构
1 How long can I _____the dictionary? A borrow B lend C keep
2 His father _______for ten years.A die B have died C dead Dhave been dead
四I t’s+形容词+for/of sb +to do sth结构中，形容词是描述人的性格特征用of
形容词是描述事物的特征用for
1 It’s necessary _____ us to learn English well. A of B for C to
2 It’s clever _____ them to work out th e problems. A of B for C to
五介词的用法1：_____表示具体的几点钟或年龄：_____half past six.
___ the age of 12
2 ____ 表示具体的某一天或某一天的早上，中午，晚上。_____ Sunday
_____ a cold morning _____ the morning of October 1st.
(1) Shenzhou 10 was sent into space ______the morning _____ June11,2013.
A in,of
B on, of
C of,in
D in ,on
(2) Teachers’ Day is ______September 10th A in B on C of D at
(3) Who’s that man ______ sunglasses? A with B in C at D for
4 比一天更长的用______,(月份，季节，学期，年四季)
例如：in September in 2013 in spring
六连词because so though although,but 的单一使用原则：即有了because就不用_____，有了so就不用_______；有了though /although, 就不用_____;有了but, 就不用_________
1_____ he exercises every day,______he is very healthy.
A Because,so
B Because,though
C Because,/
D though,/
2 ____he is very young,______ he knows a lot.
A Because,so
B Though,but
C Because,/
D though,/
七时间状语从句和条件状语从句
引导时间状语从句的连词有：when/as soon as/ until
引导条件状语从句的连词有：if （如果）/unless（如果不）
在时间状语从句和条件状语从句中，主句用________时态，
从句用_______;即___________
If（是否）引导宾语从句，宾语从句的时态要用___________.
1 I don’t know if he _________tomorrow,If he _______,I’ll tell you .
A willcome, comes
B comes,will come
C will come ,will come
D comes,comes
2 I’ll tell you as soon as he _______ . A come B comes C will come
情态动词表推测用法总结 （一）情态动词表推测 能用于表推测的情态动词： 英语情态动词表推测的时态构成 （1）语气部分：（以下情态动词语气由强至弱） 肯定句：must、may、might（=could） 否定句：can’t（=couldn’t）、mayn’t、mightn’t 疑问句：can、could（语气更加委婉不确定） （2）时态部分： 一般现在或一般将来时间的推测：情态动词+be；情态动词+v. 对过去时间的推测：情态动词+have done 对正在进行的时态的推测：情态动词+be doing （二）表许可、请求 1、 can, could 2、may, might 3、must 4、shall 5、will, would 1. can, could 1) 用在疑问句中，表示一般的请求。两者不同在于：用could 要比用can更加委婉，特别是没有把握得到允许时。 Can I go with you? 我能和你一起去吗？Could I ask you something? 我能问你一个问题吗？ 2) 用在陈述句中，表示许可：You can leave when you finish your work. 做完事情后你才可以走。 2. may, might 1) may用在疑问句中，也表示一般的请求。同can相比，may比较正式，常常表示尊敬之意。并且，may在疑问句中常用于第一人称，很少有May you…/they…这样的句型。Might比较少用在疑问句中，它表示请求的时候常用陈述句。 May I make a suggestion? 我可以提个建议？ 2) 用在陈述句中，表示许可，此时与can, could相近。 You may have a rest before we set out again. 我们再次出发之前你可以先休息一下。 3. must 1) 表示说话人“不许”和“禁止”某人做某事，有很强的劝告语气。 Cars must not be parked here.此地不准停车。 2) Must的一般疑问句的回答有两种，表示肯定，用Yes, you must. 表示否定，用No, you needn’t. Must I post this letter tomorrow? 我明天必须得寄掉这封信吗？ Yes, you must. 是的，你必须明天寄掉。
2019年情态动词作业 1．--IsawJohnintheparkthismorning.. --It_____behim.HehasgonetoHongKong. A．can’t B．can C．mustn’t D．must 2．I gonow,orI'llmissmytrain. A．can B．might C．must D．could 3．-MustIdotheprojectonmyown? -No,you____.Youcanworkwithyourclassmates. 4．--Willyougocampingwithus,Bob? --I'dloveto,butI______studyforthetest. A．may B．must C．can D．could 5．5．---Idon'tcarewhatpeoplethink. ---Well,you___.You'renotaloneinthisworld. A．can B．may C．should D．will 6．---MustIcomebefore6:30tomorrow? ---No.You______Therewillbeplentyoftime. 7．——MayIwatchTV,Dad? ——Whenyourhomeworkisfinished,you______ A．should B．can C．must D．need 8．—Jack,________yourideabike? —Yes,Ican. A.can B.may C.need D.must 9．Tokeepchildrenawayfromdangerduringthecomingsummerholiday,parents_____givethemsomesafetytips. 10．10．—Thetallmanwithglassesovertherelookslikeourmathteacher. —It_________behim.Hehasgoneabroad. 11．—Didn’tyouseethezebracrossing?You__________slowdown,son!—Sorry,sir.AmIgoingtofailthetest? A．can’t B．can C．mustn’t D．must 12．（题文）（2017·重庆）一MayItakethedogwithme,sir? 一.Petsarenotallowedtoenterthehall . A．Yes,youmay B．No,youmustn't C．Yes,youcan D．No,youneedn't 13．（题文）--Let’s____tothemovies!.---I’msorry.Imust____myhomeworkfirst. A．going;do B．go;doing C．go;do D．going;doing 14．--MustIfinishreadingthebooktoday,Mr.Brown? --No,you_________.Youcanfinishitintwodays. A．needn't B．mustn'tC．can't D．couldn't 15．—WhoseT-shirtisthis? —It________beJohn ’s.It ’s________smallforhim. A．can’t;muchtooB．can’t;toomuchC．mustn’t;muchtooD．mustn’t;toomuch 16．---Lucyiswalkingthedoginthepark. ---She be.Listen!Sheissingingloudlyinherroom. A．can’t B．mustn’t C．needn't D．won’t 17．(2018山·东临沂)Couldyoupleasespeakalittlelouder?I______hearyouverywell. A．can’t B．mustn’t C．shouldn’t D．needn’t 18．一Areyougoingtothecinematonight? 一Idon'tknow.I_____goorI_____stayathome. A．will;wil l B．must;must C．should;shoul d D．might;might 19．Tokeepchildrensafe,we___________putthethingslikeknivesandmedicineawayinourhouse. A．may B．should C．can D．might 20．--Look!Themanwelcomingusattheschoolgate beourheadmaster． --No,it behim.Heishavingameetingintheofficenow ． A．must;can’t B．must;mustn ’t C．can’t;mustn’t D．mustn’t;can 21．—MustIgoouttohavedinnerwithyou,Mum? —No,you,mydear.You’refreetomakeyourowndecision. A.shouldn’t B.mustn’t C.needn’t D.can’t
一、选择题 1．-_________ you help me with my homework? -Of course if I __________. A．Could; could B．Can't; can C．Could; can D．Can; could 2．Since you are very tired, you ______ finish the work today. A．needn’t B．may not C．mustn’t D．can’t 3．—Tom, we’re going sho pping at eight, right? —Yeah, but I ______ be a little late, so don’t wait for me. A．may B．should C．mustn’t 4．—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 to C．Yes; doesn’t have to D．No; doesn’t have to 5．—______ you please tell me something about the life in Canada or America?—Sorry, I______. I don’t know either. I’m from Australia. A．Could; couldn’t B．Can; couldn’t C．Could; can’t D．Can; mustn’t 6．The milk tastes bad. You’d better_______. A．throw it away B．to throw it away C．throw them away D．to throw them away 7．—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．mu stn’t be C．can be D．can’t be 8．—________ 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’t C．Could; couldn’t D．Can; needn’t 9．—Could you please hang out with me this afternoon? —______. I have to make a plan for Clean-Up Day. A．Sorry, I couldn’t B．Sorry, I can’t C．Sure, I can D．Sure, I could 10．You run with the train when it is coming. It’s dangerous. A．may not B．mustn’t C．needn’t 11．—I feel tired. —You ________ go to bed so late. A．must B．shouldn’t C．should 12．—Must we finish the work right now? —No, you ________. You can do it tomorrow. A．needn’t B．shouldn’t C．mustn’t D．can’t
★★★★★ 情态动词表推测 【2013天津】—? —, ' . A. ’t B. C. D. 't 【2013四川南充】—, ? —’s. . A. B. C. ’t 【2013湖南益阳】24. . . A. B. C. ’t 【2013江苏盐城】— a ? —, I’ I . A. B. ’t C. D. ’t 【2013福建泉州】—? — . . 's a . A. B. C. 【2013山东潍坊】21. ’t , . A. B. C. D. 【2013湖南株洲】, 's . ! . A. B. C. 【2013黑龙江绥化】—? —’s. ’s . A. ’t; B. ’t; C. ’t; 【2013 湖北黄冈】—’s ? . ? —. ’s . A. B. ’t C. D. ’t 【2013广西贺州】. . . A. ’t B. C. D. ’t 【2013甘肃兰州】—. ? —. , ’s . A. ’t B. C. ’t D. 【2013湖北宜昌】—! — ! a , a . A. B. D. D. 【2013湖北孝感】—. . ? —. . a . A. B. C. D. ’t 【2013湖北十堰】— a ! ! —I’m . ’s . A. ’t B. C. D. 【2013山东烟台】—? —’s. , . A. ’t B. C. ’t D. 【2013浙江宁波】’s a . A. ’t B. ’t C. D. 【2013广东】—. ? —. a . A. B. C. ’t D. ’t 【2013福建福州】—? — . . 't B. 't C. 't 【2012河南】—?
最新情态动词中考试题分类汇编经典 一、初中英语情态动词 1．—Look! The woman at the school gate ______be her headmaster. —No, it ______ be her. She is holding a meeting in the office now. A. must; can't B. must; mustn't C. can; needn't D. may; mustn't 【答案】 A 【解析】【分析】句意：——看！学校门口的那个妇女一定是她的校长。——不，不可能是她。第一空，must表示“一定”；空二，根据She is holding a meeting in the office now. 她现在正在办公室开会，可知，不可能是校长，用can't，表示不可能。故选A。 【点评】考查情态动词辨析。注意不同情态动词的用法，注意理解句意。 2．—Where is Monica? I can't find her anywhere. —She be in the library. She loves reading books when she is free. A. must B. need C. can't 【答案】 A 【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。——她肯定在图书馆，她喜欢空闲时看书。A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。 【点评】考查情态动词，注意情态动词表推测的用法。 3．Please don't make so much noise. I ________ hear the speaker very well. A. needn't B. can't C. shouldn't D. mustn't 【答案】 B 【解析】【分析】句意：请不要发出那么多噪音。我不能很好地听清楚发言者的话。needn't不必；can't不能；shouldn't不应该；mustn't禁止。根据前半句的Please don't make so much noise.可知别人发出了太多噪音，所以他无法听见演讲者的话，故用情态动词can't。故选B。 【点评】考查情态动词，结合句意和词义做出判断。 4．—Life is becoming convenient with the Internet. —That's true! Almost everything ______ be done online. A. must B. could C. should D. can't 【答案】 B 【解析】【分析】句意：——生活正随着网络变得方便。——那是真的。几乎所有的事情可以在网上完成。A必须，B可以，C将，D不能。根据 Life is becoming convenient with the Internet. 生活正随着网络变得方便，可知应该是很多事情可以在网上完成，故选B。
情态动词表猜测的用法 情态动词must,can,could,should,may,might 等可以用在句中表示猜测。 1.“情态动词+动词原形”表示对现在或将来情况的猜测 I don’t know where she is. She may be in Wuhan. 2.“情态动词+进行式”表示对现在或将来正在进行的情况的猜测 At this moment, our teacher must be correcting our exam papers. 3.“情态动词+完成式”表示对过去情况的猜测 You must have been caught in the rain on your way home yesterday. 4.“情态动词+完成进行式”表示对过去正在进行的情况的猜测 Your mother must have been looking for you. 5.推测的否定形式用can’t/couldn’t，may not/might not表示
Mike can’t have found his car, for he came to work by bus this morning. 6.句子中含有表示猜测的情态动词时，其反 意疑问句的构成不能再用原句中的情态动词，而应根据原句在去掉情态动词的情况下的主谓关系来确定其反问形式。 ①The man in the white clothes must be a doctor, isn’t he? ②She must have seen the film before, hasn’t she? ③He must have an uncle abroad, doesn’t he? ④You must have met Uncle Wang in the shop yesterday, didn’t you? 7.在表示“猜测”方面的区别 情态动词must,can,could,should,may,might 都可以用于表示“猜测”（注意：could, might 表示推测时不表示时态, 其推测的程度不如can, may）。实际上，“猜测”与“可能性”在逻辑上是有必然联系的。如果认为没有某种可能性，人们就不会作出某些猜测。因此，请注意六个情态动词之间的区别与它们各
情态动词中考真题（word） 一、初中英语情态动词 1．— I take the magazine out of the reading room? — I'm sorry you . A. Could; couldn't B. Must; couldn't C. Will; can't D. May; can't 【答案】 D 【解析】【分析】句意：——我可以把杂志带出阅览室吗？——对不起，你不能。could 能，可以；must必须；will将；may可以；can能，可以，can't不可以，不能。此处表示请求许可，用could或者may，由could或者may构成的一般疑问句，肯定回答用yes，主语+can，否定回答用sorry，主语+can't，结合选项，故答案选D。 【点评】考查情态动词的辨析。注意理解句意，理解选项，根据语境，选出正确的答案。 2．—Where is Monica? I can't find her anywhere. —She be in the library. She loves reading books when she is free. A. must B. need C. can't 【答案】 A 【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。——她肯定在图书馆，她喜欢空闲时看书。A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。 【点评】考查情态动词，注意情态动词表推测的用法。 3．According to the law, traffic keep to the left in England. A. may B. must C. need D. can 【答案】 B 【解析】【分析】句意：根据法律规定，在英国车辆必须靠左形式。A.may可以，表示允许；B.must必须，表示要求；C.need需要，表示必要性；D.can能，表示能力。根据According to the law,可知法律的要求，应是必须的，应用must，故答案为B。 【点评】考查情态动词。掌握情态动词的常用法。 4．— __________I wear a tie to Janet's birthday party? — No,you needn't. But do remember to bring her a present. A. Must B. Should C. Need D. Can 【答案】 A 【解析】【分析】句意：——我必须戴领带去参加Jane的生日聚会吗？——不，你不必，但是记住给她带个礼物。对于must的否定回答是用needn't。而should应该；need需
补充强调：推测的句型特点(对某一次的推测句型有两部分：语气和时态) (1)语气部分：(以下情态动词语气由强至弱) 肯定句：must、may might ( =could) 否定句：can，t ( =couldn 't )、mayn t> mightn 't 疑问句：can> could (语气更加委婉不确定 (2)时态部分： have done 表示对过去的推测 be doing 表示对正在进行的推测 be表示对现在的推测 语气部分写在前时态部分写在后，组合在一起就是推测 (-)情态动词表推测的三种句_ 能用于表推测的情态动词:must, can, could, will, would, may, might, should, ought to 1. 在肯定句中一般用must (一定)，may (可能)，might / could (也许，或许)。 (1)He must/may/might know the answer to this question? 他一定/可能/也许知道这个问题的答案。 (2)It is cold in the room? They must have turned off the heating? 屋里很冷，他们肯定把暖气关了。 2. 否定句中用can't / couldn 't (不可能)，may not/might not (可能不)。 (1)It can J t/couldn 't be the headmaster? He has gone to America.这不可能是校长，他去美国了。 (2)He may not/might not know the scientist. 他也许不认识那位科学家。 3. 疑问句中用can /could (能..?)。 (1) Could he have finished the task? 他可能把任务完成了吗？ (2) Can he be at home now? 他现在能在家吗？ 注：以上三种句式中情态动词的语气按程度都是依次递减的。Might, could并非的过may, can 去式，而表示语气较为委婉或可能性较小。 (二)情态动词表推测的三种时丄
(完整word版)初中情态动词练习题及答案 一、单项选择情态动词 1．—_______ you disturb me now? I’m busy preparing a report. — Terribly sorry, but I have something urgent to tell you. A．Need B．Should C．Might D．Must 【答案】D 【解析】 【详解】 考查情态动词特殊用法。句意：—你非要现在打扰我吗？我正在准备一份报告。—真对不起，但是我怕有紧急事情告诉你。A. Need需要；B. Should 应该；C. Might也许；D. Must 必须；一定；偏偏，非得；根据语境可知must表示“偏偏，非得”符合上下文语境，用来指责对方。故D项正确。 2．It is really cold and the ground is wet; it ________ have rained last night. A．might B．must C．can D．should 【答案】B 【解析】 【详解】 考查情态动词辨析。句意：天气很冷而且地面是湿的，昨晚一定下了雨。根据上文the ground is wet可知，“昨晚下了雨”是肯定的，故用must have done“必定做了……”表示对过 去十分有把握的推测，故选B。 【点睛】 must have done用法辨析 must have done：表示对过去的肯定的逻辑推测，推定某件事情、动作或状态可能在过去发生过（存在过）。 He must have been a doctor, for he knows medicine so well. 他过去肯定是一位医生，他对医学如此了解。 Somebody must have stolen the ring. 肯定有人偷了这枚戒指. [该句所推断的偷窃动作发生在过去.] The temperature must have dropped to below zero last night, because the water is frozen all over.昨夜的温度肯定降到零度以下，因为水都冻住了。 如果“must + have + 过去分词”句型与by now连用，还可以表示对现在完成的动作和状态的肯定推测，但实质上还是指所推测的过去的动作。例如： They started early this morning; they must have arrived by now. 他们今晨很早就出发了，现在肯定已经到了。 中国学生的常见病句是：They...; they certainly have arrived.病句的句义是“他们当然已经到 达了。”（这不是对过去的肯定推测，而是断定动作已经完成。）
中考英语情态动词真题精选 ??????情态动词是初中英语里的一个重要语法项目,也是全国各省市中考试题的一个考查热 一、考查can的用法 a.考查can表示能力的用法。 在这一用法中,can表示能力,意思是"能,会",其否定式can't表示"不能"。在过去时中用could和couldn't。例如: 1.-Where's?Mr?Lee?I?have?something?unusual?to?tell?him. -You________find?him.?He________Japan.?(2003黑龙江) A.?may?not;?has?gone?to? B.?may?not;?has?been?to C.?can't;?has?gone?to? D.?can't;?has?been?to 2.-Finish?drawing?a?horse?in?ten?minutes.?OK -Sorry.?It________in?such?a?short?time.?(2003山东威海) A.?may?do? B.?can't?be?done C.?must?do? D.?needn't?be?done 3.?I?have?my?own?room?in?my?house,?so?I________do?what?I?want?in?it.?(2002江西) A.?must? B.?have?to? C.?need?to? D.?can 4.________you?mend?my?car?I______not?start?it.?(2002常德市) A.?Would;?would? B.?Must;?must? C.?Can;?can? D.?May;?may 5.________she?ride?when?she?was?three?years?old(?2002长沙市) A.?Can? B.?Could? C.?Need? D.?May 6.?The?boy________answer?this?kind?of?hard?questions?one?year?ago.(2002四川省)? A.?can? B.?may? C.?could b.考查can表示推测的用法。 在这一用法中,can意为"可能",表示客观可能性,常常用于疑问句和否定句中。例如: 7.?Who?is?the?man?over?there?Is?it?Mr?Li -No,?it________be?him.?Mr?Li?is?much?taller.?(2003河北)
九年级英语表推测语气的讲解与练习 表推测时，英语中只使用must,may,might,may not和can't。这五个表达的语气依次递减： must:一定（语气肯定） may：也许（不很肯定） might：或许（比may语气更弱） may not：也许不（表否定） can't：一定不（must的反义） 推测现在的事情用must,may,might,may not和can't+do或be e.g.She must be at home now. The boy may play now. 推测过去的事情用must,may,might,may not和can't+have done e.g.She might have been ill yesterday. He must have hold the party. 情态动词must, can, could, may, might表推测的用法 情态动词中的must, can, could, may, might都表推测。其中must的可能性最大，can / could次之，may / might最小。具体用法如下： 1.must的用法 （1）表示推测“可能性”时，意思是“一定、准是”，语气较肯定，较有把握。He must be American. = It is certain that he is American. 他准是个美国人。 （2）must表推测只能用于肯定句。如果要表示“一定不、肯定不”的意思时，应用can’t,如询问某种可能时，应用can。 He must know my address. 他肯定知道我的地址。（一定） He can’t know my address. 他肯定不知道我的地址。（一定不） Can he know my address? 他知道我的地址吗？（询问可能性） （3）must表示推测时，可以推测现在/正在发生的动作/过去发生的动作。 He must have a car now. （现在）他一定有辆小汽车。 He must be doing his exercises in the classroom.（正在进行）他一定在教室里做练习。 He must have finished the work.（过去发生）他一定已完成了工作。 注：must表示推测时很少用于将来的情况。一般不用He must come tomorrow.可用It`s certain / I’m sure that he will come tomorrow. （4）在反意疑问句中，当附属部分含有表示推测意义的must时，疑问部分的助动词应与must后面的动词在非推测情况下的用法保持一致。 He must be a worker, isn’t he? （现在）他准是个工人，是吗？ It must have rained last night, didn’t it? （过去）昨晚一定下雨了，是不是？
情态动词中考经典题型带答案 一、初中英语情态动词 1．— I take the magazine out of the reading room? — I'm sorry you . A. Could; couldn't B. Must; couldn't C. Will; can't D. May; can't 【答案】 D 【解析】【分析】句意：——我可以把杂志带出阅览室吗？——对不起，你不能。could 能，可以；must必须；will将；may可以；can能，可以，can't不可以，不能。此处表示请求许可，用could或者may，由could或者may构成的一般疑问句，肯定回答用yes，主语+can，否定回答用sorry，主语+can't，结合选项，故答案选D。 【点评】考查情态动词的辨析。注意理解句意，理解选项，根据语境，选出正确的答案。 2．—Where is Monica? I can't find her anywhere. —She be in the library. She loves reading books when she is free. A. must B. need C. can't 【答案】 A 【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。——她肯定在图书馆，她喜欢空闲时看书。A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。 【点评】考查情态动词，注意情态动词表推测的用法。 3．Please don't make so much noise. I ________ hear the speaker very well. A. needn't B. can't C. shouldn't D. mustn't 【答案】 B 【解析】【分析】句意：请不要发出那么多噪音。我不能很好地听清楚发言者的话。needn't不必；can't不能；shouldn't不应该；mustn't禁止。根据前半句的Please don't make so much noise.可知别人发出了太多噪音，所以他无法听见演讲者的话，故用情态动词can't。故选B。 【点评】考查情态动词，结合句意和词义做出判断。 4．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 【答案】 A 【解析】【分析】句意：看这个标志！上面写道“禁止吸烟！“你不能抽烟。这是危险的。 A.mustn't 禁止，不允许； B.ought not to不应该，不应当； C.needn't不必； D.don't have to 不必。根据“No Smoking!”可知此处禁止吸烟，故答案为A。
2019年情态动词作业 1．--I saw John in the park this morning.. --It _____be him. He has gone to HongKong. A．can’t B．can C．mustn’t D．must 2．I go now, or I'll miss my train. A．can B．might C．must D．could 3．-Must I do the project on my own? -No, you____.You can work with your classmates. A．needn’t B．can’t C．shouldn’t D．mustn’t 4．-- Will you go camping with us, Bob? -- I'd love to, but I ______ study for the test. A．may B．must C．can D．could 5．5．---I don't care what people think. ---Well, you ___. You're not alone in this world. A．can B．may C．should D．will 6．---Must I come before 6: 30 tomorrow? ---No. You______ There will be plenty of time. A．mustn’t B．can’t C．coul dn’t D．needn’t 7．——May I watch TV, Dad? ——When your homework is finished, you ______ A．should B．can C．must D．need 8．— Jack, ________ you ride a bike? — Yes, I can. A.can B.may C.need D.must 9．To keep children away from danger during the coming summer holiday, parents _____give them some safety tips. A．should B．may C．could D．might 10．10．—The tall man with glasses over there looks like our math teacher. —It _________ be him. He has gone abroad. A．may not B．mustn’t C．can’t D．needn’t 11．—Didn’t you see the zebra crossing? You __________ slow down, son! —Sorry, sir. Am I going to fail the test? A．can’t B．can C．mustn’t D．must 12．（题文）（2017·重庆）一May I take the dog with me, sir? 一 . Pets are not allowed to enter the hall. A．Yes, you may B．No, you mustn't C．Yes, you can D．No, you needn't 13．（题文）--Let’s ____ to the movies!. ---I’m sorry.I must ____ my homework first. A．going;do B．go;doing C．go;do D．going;doing 14．-- Must I finish reading the book today, Mr. Brown? -- No, you _________. You can finish it in two days. A．needn't B．mustn't C．can't D．couldn't 15．—Whose T-shirt is this? —It ________ be John’s. It’s ________ small for him. A．can’t; much too B．can’t; too much C．mustn’t; much too D．mustn’t; too much 16．---Lucy is walking the dog in the park. ---She be. Listen! She is singing loudly in her room. A．can’t B．mustn’t C．needn't D．won’t 17．(2018·山东临沂) Could you please speak a little louder? I ______ hear you very well. A．can’t B．mustn’t C．shouldn’t D．needn’t 18．一Are you going to the cinema tonight? 一I don't know. I _____ go or I_____ stay at home. A．will; will B．must; must C．should; should D．might; might 19．To keep children safe, we ___________ put the things like knives and medicine away in our house. A．may B．should C．can D．might 20．--Look! The man welcoming us at the school gate be our headmaster． --No,it be him.He is having a meeting in the office now． A．must; can’t B．must; mustn’t C．can’t; mustn’t D．mustn’t; can
情态动词表推测用法总结及专项练习 1.can / could用于表推测的用法 (1) 从使用句型上看，can 通常只用于否定句或疑问句，一般不用于肯定句，而could 可用于肯定句、否定句和疑问句。两者没有时间上的差别，只是could 比 can 更委婉，更不确定。如： It can’t [couldn’t] be true. 那不可能是真的。 What can [could] they be doing? 他们会在干什么呢? We could go there this summer. 今年夏天我们可能要去那儿。 注：can 有时也用于肯定句中表示推测，主要用于表示理论上的可能性(即 从理论上看是可能的，但实际未必会发生)，或表示“有时”之意。如： Even experienced teachers can make mistakes. 即使是有经验的教师也可 能出错。 She can be very unpleasant. 她有时很令人讨厌。 (2) 从时间关系看，对现在或将来情况作推测，后接动词原形；对正在进行 的情况作推测，后接 be doing 结构；对过去情况作推测，后接动词完成式。如： He could have gone home. 他可能已经回家了。 He can’t [couldn’t] have understood. 他不可能理解了。 Why does he know this? Can [Could] someone have told him about it? 他 怎么知道? 会是哪个人告诉他了吗? (3) “could+完成式”除表示对过去的推测外，还有以下重要用法： ①表示过去没有实现的可能性，常译为“本来可以”。如： I could have lent you the money．Why didn’t you ask me? 我本来可以借 这笔钱给你的。你为什么不向我提出? ②用来委婉地责备某人过去应该做某事而没有去做，常译为“本来应该”。如： You could have helped him. 你本来应该帮助他的。 ③表示“差点儿就要”。如： I could have died laughing. 我差点儿笑死了。