【正文】 （但沒有這樣） 策劃：《學(xué)生雙語報(bào)》 58 ?needn’t +have done表示做了本來不必去做的事。 策劃：《學(xué)生雙語報(bào)》 57 ?might（不用 may） +have done表示 “ 本來可能 …” ，但實(shí)際上沒有發(fā)生的事。 could have reported to me earlier. 你本該早點(diǎn)告訴我的。 mustn’t。 can’t。might比 may更委婉、含蓄和不肯定。 策劃：《學(xué)生雙語報(bào)》 50 ?can/could+have done表示對(duì)過去的行為的懷疑和不肯定，通常用在否定句和疑問句中。t have to A D 策劃：《學(xué)生雙語報(bào)》 46 He must be reading, isn?t he? You must do it yourself, don?t you? He must have gone over the article, hasn?t he? It must have rained last night, didn?t it? 表猜測(cè)語氣的反意疑問句的構(gòu)成 策劃：《學(xué)生雙語報(bào)》 47 from his accident, he must be from the south, bought a lot of apples. He must like eating apples, is eleven o’clock at night and the lights are off. They must be sleeping now, isn’t, he? didn’t he? aren’t they? 因 must后是實(shí)意動(dòng)詞 like 因 must后是系動(dòng)詞 be must后接的是 be sleeping，是對(duì)正在進(jìn)行的情況推測(cè) 策劃：《學(xué)生雙語報(bào)》 48 must have learned 2,000 words by the end of last term, hadn’t we? must have gone to Beijing, didn’t it? hasn’t he? 若句中含有過去完成時(shí)的時(shí)間狀語，用過去完成時(shí)完成反意疑問句 若句中含有過去的時(shí)間狀語，用一般過去時(shí)完成反意疑問句 若句中不含任何時(shí)間狀語， 用現(xiàn)在完成時(shí)完成反意疑問句 must have rained last night, for the road was very muddy， 策劃：《學(xué)生雙語報(bào)》 49 ?Must +have done 表示對(duì)過去已經(jīng)發(fā)生的行為進(jìn)行推測(cè)，意為 “ 想必 /準(zhǔn)是/一定作了某事 ” 。t B C 策劃：《學(xué)生雙語報(bào)》 43 3. We didn39。 ? I told her that she must give up smoking. ? She said, “We had to get everything ready that night.” 比較 must amp。 need 情態(tài)動(dòng)詞 實(shí)義動(dòng)詞 dare 否，疑，條 dare not do 否 ,疑 don?t dare to do don?t dare do 不用于肯定句 肯： dare to do need 否，疑 needn?t do (don?t) need sth (don?t) need to do 肯： must, have to, ought to, should 策劃：《學(xué)生雙語報(bào)》 35 ?Must they do…? Yes, they must. No, they needn?t/don?t have to. must amp。 ) ? You should have a rest after finishing your sports.（一般性建議） ? You ought to call the police when you find something wrong in your house. ? He should take care of the babies tonight. 策劃：《學(xué)生雙語報(bào)》 30 ought to 的否定式： He oughtn?t to do it. ought to 的疑問句： Ought we to do it at once? 反意疑問句里： He ought to be here, oughtn?t he?或 ought to 表應(yīng)該， ought to 語氣＞ should shouldn?t he? I ?m surprised that he should eat so little every. 策劃：《學(xué)生雙語報(bào)》 31 have to ? have to 表示 客觀需要 去做的事情，意為“必須，不得不。區(qū)別在于， ought to常指特殊情況下的“應(yīng)當(dāng)”。 may must be marking must have rained must have been looking 策劃：《學(xué)生雙語報(bào)》 25 5. Philip ________________________ seriously in the car accident. 菲利普可能在車禍中受了重傷 . 6. Linda has gone to work, but her bicycle is still here. She _____________________ (go) by bus. 7. Mike ________________ his car, for he came to work by bus this morning. 邁克一定還沒有找回他的車，因?yàn)樵缟纤亲? 公共汽車來上班的。 c. dare與 need 用做實(shí)意動(dòng)詞時(shí)有時(shí)態(tài)，人稱和數(shù)的變化 ,但 dare用于否定句和疑問句時(shí)常接不帶 to的不定式 ,need后要接帶 to的不定式。t. You mustn’t get down while the car is still moving. 策劃：《學(xué)生雙語報(bào)》 21 I don’t like this TV set. We must buy a new one. There was no more bus. They had to walk home. “必須”這個(gè)意思時(shí)， must 和have to 稍有區(qū)別。 I can?t believe such a gentleman should be so rude to the old. 我不敢相信這樣一個(gè)紳士居然對(duì)老人如此無禮。 1)You shall go with me.(命令 ) 2)You shall have the book when I finish it.(允諾 ) 3)He shall be punished.(威脅 ) 2. shall用于第一、三人稱疑問句中，表示說話人征求對(duì)方的意見和向?qū)Ψ秸?qǐng)示。 He may have gone to the clinic. 他可能已經(jīng)從報(bào)紙上知道這個(gè)消息了。 They may be still waiting for us. 可用于 指過去的行為或者表示可能性更小 。 The door was locked. She couldn’t have been at home. 策劃：《學(xué)生雙語報(bào)》 11 3. can/could have done “本可以，本來可能已經(jīng) ”用于 肯定句 中，表示對(duì) 過去發(fā)生的事情 做出的判斷， 你本來可以考的更好。 It c