【正文】 ing is not allowed here.[2020湖南卷 ] Oh, sorry. A. must B. will C. may D. need C A 1. Guess what! I have got A for my term paper. [2020 上海卷 ] Great! You ______ read widely and put a lot of work into it. A. must B. should C. must have D. should have 2. The teacher _______have thought Johnson was worth it or she wouldn39。t have wasted time on him, I suppose. [2020 安徽卷 ] A. should B. can C. would D. must C D 3. She looks very happy. She ______ have passed the exam. [2020 江蘇卷 ] I guess so. It39。s not difficult after all. A. should B. could C. must D. might 4. In crowded places like airports and railway stations, you_______ take care of your luggage. [2020 北京卷 ] A. can B. may C. must D. will 【 知識(shí)點(diǎn)歸納 】 (1) 第 3題都是考查 must have done sth的用法，表示對(duì)過(guò)去的肯定推測(cè)。 (2) 第 4題 must 表示義務(wù)、命令或必要。 Keys： ， ， ， C C can, could 和 be able to的用法 She can/be able to sing the song in English. This machine can make you feel fortable. , be able to都可 表示“能力” Can的主語(yǔ)是人或物 ,be able to的主語(yǔ)是人 We’ll be able to finish the work soon. I haven’t been able to see the film. (could)。be able to可以用于各種時(shí)態(tài)。 could用于表示泛指過(guò)去的能力。如： I could read when I was four. Although the soldier was badly wounded, he was able to tell what had happened. ，只能用 was/were able to， 不能用 could。 He was able to flee Europe before the war broke out. He was able to swim before he got tired. 表示過(guò)去的能力 *was / were able to : “設(shè)法做成某事” 相當(dāng)于 managed to do sth. succeeded in doing sth.。 can/could 1. can /could 表示推測(cè)時(shí)，只能用在 否定句或疑問(wèn)句中 。 It’s so late. Can Tom be reading? Can it be Mr. Green? 這個(gè)人不可能是瑪麗， 她生病了。 It can’t be Mary. She has fallen ill. 她不可能在說(shuō)謊。 She couldn’t be telling lies. 在疑問(wèn)句中 Could 比 can 更有禮貌，在此不是 can的過(guò)去式。 Can you wait a moment please? Liz, can you do me a favor? Excuse me, could you tell me the way to the station? I wonder if you could help me. (請(qǐng)求 ) 2. can/could have done 在否定句對(duì) 過(guò)去發(fā)生 行為的可能性進(jìn)行推測(cè) : 剛才我還看見(jiàn)他了， 所以他不可能出國(guó)的。 I saw him just now so he couldn’t have gone abroad. 門(mén)是鎖著的， 所以她不可能在家。 The door was locked. She couldn’t have been at home. ?could(不用 can)+have done,在肯定句中表示“本來(lái)能夠 … 而沒(méi)能 …” ，具有婉轉(zhuǎn)的批評(píng)和責(zé)備之意 , 1. I could have passed my exam easily, but I made too many stupid mistakes. 我本來(lái)能夠輕易通過(guò)考試，但我犯了太多不該 犯的錯(cuò)誤。 could have reported to me earlier. 你本該早點(diǎn)告訴我的。 表示對(duì)過(guò)去發(fā)生的事情做出的判斷 28. He did not regret saying what he did but felt that heC it differently.[2020江蘇卷 ] A. could express B. would express C. could have expressed D. must have expressed 2020遼寧卷 )22. Peter __C_be really difficult at times even though he’s a nice person in general。 A. shall B. should C. can 可能性 D. must (2020陜西卷 )9. –What sort of house do you want to have? Something big? Well, it _________ be bigthat’s not important。 A. mustn’t B. needn’t C. can’t D. won’t (2020浙江卷 )11. You ______ be hungry already — you had lunch only two hours ago! A. wouldn’t B. can’t C. mustn’t