【正文】 your father?I39。t 39。t 39。t 1． Where can he ______(be)now ? There’s something important to tell him at ． He can’t ________(hear)us because there was terrible noise from the ． What he is saying may not _________(be) don’t think she is such a kind of ． “ What do you think that noise was ? “ “ It might _______(be)a cat.”5． There must ________(be)something wrong with my you help me to fix it ? 6． The girl must _______(leave)for don’t see her anywhere on the ． She ought to ________(have)his was his girl friend at ． Haven’t you got the tickets ? You oughtn’t to ________(have)any difficulties in getting ． That will ________(be)the usually es at this ． Sorry to be so will _____(wait)for some ． It should _____(be)somebody never stays in the lab so ． She should _______(receive)the sent it five days ： heard been left had waited received一、單項(xiàng)選擇 you swim in the river?No, I 39。 ____ rain you please show us some photos ? soldier shot his _____ have been tree is ________have given it more _____ be writing their positions in the classroom saw them in the he have finished the work ? I don39。t（不可能，表推測(cè)） 可能（表對(duì)過(guò)去事情 的推測(cè)） you explain the sentence again ? _____ hand in your exercise book in at may hand it in on _____ play the piano well when she was quite I clean the classroom before three o39。s ten o39。t climb the tree , ” his mother news may be true, of it be Susan ?No , it can39。re quite right , must stop the who would send their children to an unknown young woman ? will not listen to any I return these books to the library ? dare you say I39。dares 為實(shí)義動(dòng)詞。t worry about us now.(他不必為我們擔(dān)心。在肯定句中多用于實(shí)義動(dòng)詞，在疑問(wèn)句和否定句中多用情態(tài)動(dòng)詞，用于實(shí)義動(dòng)詞時(shí)有人稱和數(shù)的變化。t have done表示本不必做而做了的事情。t have told them that.(你本不必告訴他們那件事。t have done表示本不應(yīng)該做而做了的事情。t have told them that.(你本不應(yīng)當(dāng)告訴他們那件事。should have done 表示本應(yīng)該做而沒(méi)有做的事情。自責(zé)自己沒(méi)有把事情做好，感到惋惜、遺憾）You should have thought of that.(你本應(yīng)當(dāng)想到這一點(diǎn)。）（三）幾個(gè)應(yīng)注意的問(wèn)題1）情態(tài)動(dòng)詞+have done 可以表示對(duì)過(guò)去所發(fā)生事情的一種責(zé)備語(yǔ)氣。t have rained last night.(路面沒(méi)濕，昨天夜里肯定每下雨。）The road idn39。t have done3)疑問(wèn)的推斷：can(could)have done例句： They may have settled the problem.(他們可能已經(jīng)解決了這個(gè)問(wèn)題。對(duì)某個(gè)狀態(tài)或 過(guò)去發(fā)生的事情進(jìn)行推測(cè)在情態(tài)動(dòng)詞后加上 have done 例如：1）肯定的推斷：may have done , must have done2)否定的推斷：can39。He can39。他已經(jīng)回家了。It can39。t 3)疑問(wèn)的推斷：can(could)例句: It may be should be at home by now , I 。（二）情態(tài)動(dòng)詞表示推測(cè)對(duì)目前狀態(tài)的推斷以及 對(duì)目前正在發(fā)生的動(dòng)作的推斷1）肯定的推斷：may，should，must 2)否定的推斷：can39。試對(duì)比：She used to make mistakes in spelling when 。9）used to表示現(xiàn)在已經(jīng)不再有的過(guò)去的習(xí)慣性行為。8)ought to 應(yīng)該。Dare you walk through the forest at night? 你敢夜間穿過(guò)森林嗎？If the enemy dare ener the village,we39。)7)dare 敢 ； 用于否定句、疑問(wèn)句 和條件狀語(yǔ)從句。t.(Yes,you must)不，你沒(méi)有必要。我已經(jīng)告訴他了。39。t show your passport at the entrance unless the guard asks you for 。t 不必，不需要。6)need 需要 ； 一般用于疑問(wèn)句和否定句。You will do as I say at 。5）will(would)愿意（表示意愿，愿望）；慣于、總是（表示習(xí)慣性、經(jīng)常性）；必須（表示命令）例如： We will fight on until the end of the enemy.(我們一定要戰(zhàn)斗到敵人的末日。例如：You should keep your 。不必。t ,意思為：一定不要 ；回答 must 提問(wèn)時(shí)，否定用needn39。3）must 必須。t)He needs to have a good ？不，你不要進(jìn)來(lái)。t(不許）例如：May I e into the room to see Mr Green ?No, you can39。）Can(Could)you e here at six ?(你能六點(diǎn)中來(lái)這兒?jiǎn)?？?)may(might)可以（表示許可，might 表示更委婉）；may 的否定式謂：can39。能夠(可能), 這時(shí)could 不是can 的過(guò)去時(shí), 它表示比can 的可能性更小或語(yǔ)氣更委婉。當(dāng)時(shí)只有他在那里?！狪t had to be Tom．／It must have been Tom．He39。（他肯定是湯姆。had＋to be可表示說(shuō)話人對(duì)過(guò)去可能發(fā)生的事認(rèn)為是肯定無(wú)疑的：There was a knock on the door．It had to be Tom．有人敲門。s a tall gray bird fishing in the river．