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1、情態(tài)動詞表猜測byTony(可能是Mary。)(絕對不是Mary。) (可能不是Tom。) Mum: Who is it ? J: It must be Tom. M: It may be Mary. J:It cant be Mary. She is in China. M:It may not be Tom.Jim: (一定是Tom。)(可能是Kate。)(絕對不是Marry。)(可能不是Tom。) Mum: Who is it? Jim: (一定是Tom。)It must be Tom.It may be Kate.It cant be MarryIt may not be Tom.情態(tài)
2、動詞表猜測byTonyUse some modal verbs to say sth. that is possible. MUST CAN MIGHTFORMS 肯定形式肯定形式 否定形式否定形式 疑問形式疑問形式 備注備注 must / / can cant/cannot Can？ could could not Could？ may may not might might not COULD MAY情態(tài)動詞表猜測byTony ORDER: Might May Could Can Must UNCERTAIN CERTAIN情態(tài)動詞表猜測byTonycan可表示可表示客觀的可能性客觀的可能
3、性,邏輯上的邏輯上的可能性可能性,并不牽涉具體事情是否發(fā)生，并不牽涉具體事情是否發(fā)生，要表示要表示某事發(fā)生的實際可能性時某事發(fā)生的實際可能性時，須用須用could, may, might。 情態(tài)動詞表猜測byTony1.Accidents can happen on such rainy days. 2.Will you answer the doorbell? It may be your father. 3.We may go camping next Sunday. 4.Water can be turned into ice if it is cold enough.情態(tài)動詞表猜測by
4、Tonymustcan / couldmay / mightWhen you are very sure of something, you use _in positive sentence and _or_ in negative sentences.When you think that something is possible, but you are not very sure, you use_, _or_.mustcannotcantcouldmightmay情態(tài)動詞表猜測byTony 2.It must have rained last night, 2.It must ha
5、ve rained last night, _?_? It must be nice to take a walk It must be nice to take a walk here, _?here, _? 表示表示推測推測時，其反意疑問句應(yīng)根據(jù)時，其反意疑問句應(yīng)根據(jù) 動詞的動詞的實際時態(tài)實際時態(tài)而變化。如：而變化。如： isnt it didnt it3.He must have been met you 3.He must have been met you somewhere before,_ ?somewhere before,_ ?4.You must have seen her
6、 yesterday,4.You must have seen her yesterday,_?_?didnt youhasnt he情態(tài)動詞表猜測byTony6.Come on,lets hurry.They 6.Come on,lets hurry.They may be waitingmay be waiting for us at the for us at the school gate.school gate.5.You cant be 5.You cant be serious,_?serious,_?are you情態(tài)動詞表猜測byTony I am not sure whet
7、her he will come or not. He must come tonight. He mustnt be an American because he cant speak English at all.1.I tried to call him at the office, but there is no reply. He can be at home.maycantmay情態(tài)動詞表猜測byTony can / could表示的可能性比表示的可能性比must小小，can表現(xiàn)在和將來，表現(xiàn)在和將來，could既可表過去，也可表現(xiàn)在或?qū)?，但它的可能性比既可表過去，也可表現(xiàn)在或?qū)?/p>
8、來，但它的可能性比can小小。 can / could可與可與not連用，表示否定推測，也可用于疑問句中連用，表示否定推測，也可用于疑問句中. . Can / could表推測時，其反間疑句也是根據(jù)動詞的實際時態(tài)國表推測時，其反間疑句也是根據(jù)動詞的實際時態(tài)國以變化。如：你不可能當(dāng)真的，對不對？以變化。如：你不可能當(dāng)真的，對不對？You cant be serious, are you?4. can / could have done，意為意為“本來能夠本來能夠”，用于否定句時，用于否定句時，意為意為“過去（不）可能過去（不）可能”，而實際上都未發(fā)生。，而實際上都未發(fā)生。 如：如： 你本來可以來
9、早點的。你本來可以來早點的。You could have come earlier.情態(tài)動詞表猜測byTony may / might的可能性最小，往往表示原因說話人對某事沒把的可能性最小，往往表示原因說話人對某事沒把握握 May / / might可與可與not連用，表示否定推測，但連用，表示否定推測，但may用于疑問用于疑問句時中能表示請求允許。句時中能表示請求允許。The teacher may not be serious.May I leave now?3. 3. May / / might have done, , 表示對過去可能發(fā)生某事的推測。表示對過去可能發(fā)生某事的推測。 如：
10、如： 你在做這件事時也許注意到了什么。你在做這件事時也許注意到了什么。You may have noticed something while you were doing this.情態(tài)動詞表猜測byTony May have done Might have done Could have done Can have done Should have done Ought to have done Shouldnt have done Cant have done Couldnt have done 可能已經(jīng)做過某事可能已經(jīng)做過某事 也許已經(jīng)做過某事也許已經(jīng)做過某事 本來可以做某事本來可以做
11、某事 本來可以做某事本來可以做某事 本來應(yīng)該做某事本來應(yīng)該做某事 本來應(yīng)該做某事本來應(yīng)該做某事 本來不應(yīng)該做某事本來不應(yīng)該做某事 不可能已經(jīng)做過某事不可能已經(jīng)做過某事 不可能已經(jīng)做過某事不可能已經(jīng)做過某事 對過去事情的推測：對過去事情的推測：情態(tài)動詞表猜測byTony1.I may have been pretty in those days.2. He cant have been to Beijing.3.She might have been hurt at the party yesterday.4. You should have helped him.5. I could have
12、 finished my homework,but your radio was too noisy.6. You shouldnt have quarreled with him.7. You ought to have been here five minutes earlier.情態(tài)動詞表猜測byTony 1. The sky is cloudy.You had better bring your raincoat along. It _this afternoon.A. may rainB. might rainC. may have rainedD. might have raine
13、d基礎(chǔ)篇：基礎(chǔ)篇：情態(tài)動詞表猜測byTony2. Peter _come with us tonight,but he isnt very sure yet. A. must B. can C. may D. will情態(tài)動詞表猜測byTony 3. Where is my pen ? I _it.A. might loseB. would have lostC. should have lostD. must have lost情態(tài)動詞表猜測byTony4.Such a businessman _honest ; he gets his money by dishonest ways. A.
14、 cant be B. cant have been C. may be D. may not be情態(tài)動詞表猜測byTony 5.-I rang your flat yesterday.A man answered but I didnt recognise the voice. -Oh,it _my brother Peter.A. must beB. must have beenC. can have beenD. might be情態(tài)動詞表猜測byTony6. This _be a womans handkerchief. It _be a mans. A. cant ; may B. cant ; must C. must not ; can D. cant ; can情態(tài)動詞表猜測byTony 8.I didnt hear the phone. I _asleep. ( MET 89 )A. must beB. must have beenC. should beD. should have been情態(tài)動詞表猜測byTony 9.-The streets are all wet. -It _during the night.A. must be rainingB. must rainC. might have rainedD. must have rained
情態(tài)動詞表猜測byTony
