知識(shí)點(diǎn)——should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”.ppt

1、,知識(shí)點(diǎn) should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【知識(shí)點(diǎn)解析】,should have done 的用法 should have done(本來(lái)應(yīng)該做而沒(méi)有做)只用于談?wù)撨^(guò)去情況，主要有兩個(gè)用法： 1.用于推測(cè)過(guò)去已經(jīng)發(fā)生的情況。如： He should have arrived by now. 此時(shí)他本該到了。 The letter should have arrived by now. 信現(xiàn)在該到了。 The train should have already left. 火車大概已經(jīng)開走了吧。 I ca

2、nt think why he should have been so angry. 我想不通他怎么會(huì)這樣生氣。,should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【知識(shí)點(diǎn)解析】,2.用于指本該發(fā)生而實(shí)際上未發(fā)生的情況。如： You should have told me so before. 你早就應(yīng)該告訴我。 Look at the time! We should have been at the theatre ten minutes ago. 瞧都什么時(shí)候了! 十分鐘前我們就該到戲院了。 George never should have joined the army. 喬

3、治本來(lái)就不該參軍的。 You should have told me you were coming. 你該事先告訴我你要來(lái)呀。,should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【知識(shí)點(diǎn)解析】,You should have writtenI was getting worried. 你該來(lái)封信啊我都開始擔(dān)心了。 John should have left have left by tomorrow. 到明天約翰可能已走了。 I think they should have consulted a doctor earlier. 我認(rèn)為他們?cè)缇驮撊タ瘁t(yī)生了。 I should h

4、ave left London before 9, but I didnt. 我本該在9點(diǎn)以前離開倫敦，但是我沒(méi)有。,should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【知識(shí)點(diǎn)解析】,In my opinion, she should have resigned earlier. 在我看來(lái)，她應(yīng)當(dāng)更早一點(diǎn)兒辭職。 You are right; I should have thought of that. 你說(shuō)得對(duì)，我本應(yīng)當(dāng)想到這一點(diǎn)的。 I should have phoned Ed this morning, but I forgot. 今天上午我本該給埃德打電話，但是我忘了。,

5、should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【典型例題】,1.-He failed in the exam again. -He _his teachers advice. A. should not have followed B. should not follow C. mustnt follow D. should have followed 答案：D 解析：考查虛擬語(yǔ)氣。表示對(duì)過(guò)去的假設(shè)，用現(xiàn)在完成時(shí)，根據(jù)句意應(yīng)當(dāng)填should have done（本應(yīng)當(dāng)做某事卻沒(méi)有做）。句意：上文：他考試又不及格了。下文：他應(yīng)當(dāng)聽取老師的意見(jiàn)的。故選D.,should have

6、done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【典型例題】,2. The streets are all dry. It _ during the night. A. must have rained B. should have rained C. cant have rained D. couldnt rain 答案：C 解析：考查情態(tài)動(dòng)詞和虛擬語(yǔ)氣。句意：街道是干的，夜里不可能下雨了。情態(tài)動(dòng)詞+have done可表示對(duì)過(guò)去事情的推測(cè)，must have done一定已經(jīng)做了某事，表示肯定推測(cè)，否定推測(cè)不能用mustnt，應(yīng)該用cant；should have done本應(yīng)該做某事(實(shí)際上未做)

7、；cant have done不可能做了某事，根據(jù)句意可知，這里表示否定的推測(cè)，故選C.,should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【典型例題】,3. They _ have arrived at lunchtime but their flight was delayed. A. will B. can C. must D. should 答案：D 解析：句意：他們本應(yīng)該午餐時(shí)到達(dá)，但是被航班耽誤了。本題考查虛擬語(yǔ)氣故A、B項(xiàng)排除，must have done意為過(guò)去肯定做了某事；should have done意為過(guò)去應(yīng)該做某事而實(shí)際沒(méi)做，故選D.,should have done“本來(lái)應(yīng)該做（應(yīng)該沒(méi)有做）”,【典型例題】,4.-Mum, where is my ball? I remember I put it here yesterday. -You _ it in the wrong place. A. must put B. might put C. might have put D. should have put 答案：C 解析：句意：媽媽，我的球在哪里？我昨天把它放在這里的。你可能放錯(cuò)地方了。根據(jù)句意可知