高考英語情態(tài)動詞講解-在線瀏覽
2025-06-19 01:27本頁面
【正文】 ould be on his way home now。Can this be done by him？（表示疑惑、驚訝）這可能是他做的嗎？Mr. Bush is on time for everything。他怎么可能在開幕儀式上遲到呢？I didn’t hear the phone。（表肯定）我沒聽到電話。3. would，could，might并不一定與過去時間有關(guān)，而是表示可能性弱于他們相應(yīng)的現(xiàn)在時形式。如：This may/ might be done by him。4. should/ ought to表推測時，表示說話者有較大的試探性。他應(yīng)該按時到這里——他出發(fā)的夠早的。我們按說能在天黑前到達。今天路上應(yīng)該不至于那么擁擠了。如：—Could/ Might I use your bike tomorrow morning？—Yes，you can/ may。）不可以說，Yes，you could/ might。如：—Could I borrow your dictionary？—Yes，of course you can。此外，當(dāng)宣布法律、規(guī)定時，也要用shall。（= I order you and him to leave the room at once。（說話者的意志）It has been announced that candidates shall remain in their seats until all the papers have been collected。（規(guī)則或規(guī)定）（四） 表必要性1. must常用來表示必要性，意為“必須”。如：You needn’t have worded that late last night。你昨晚本不必工作到那么晚，那對你的身體不好。I didn’t need to work very late。2. should也可以表示必要性，意為“（義務(wù)上）應(yīng)該”?！皊hould + 動詞原形”表示現(xiàn)在或?qū)響?yīng)該做某事（的必要性）；“should + have + 過去分詞”表示過去本該做某事（的必要性）。今天下午我應(yīng)該去看望他，但我不知道我是否有空。What was the reason for your absence？你昨天應(yīng)該參加那個會議。The lights were off。can/ could have done①“本來能夠……”②“過去可能會……”Can he have gone to his aunt’s？You could have e 5 minutes earlier。He couldn’t have gone to Beijng。一般只用于肯定句和否定句中（在否定句中表示“可能不”），不用于疑問句。It’s too late。He may not have finished the work。should/ ought to have done“本該做某事，而實際上未做”You should have e to the meeting earlier。shouldn’t/ ought not to have done“本不該做而做了某事”You shouldn’t have told her the truth。注意：didn’t need to do表示“沒必要做并且實際上也沒有做某事”。I didn’t need to clean the windows。had better have done用于事后的建議，含輕微責(zé)備的口吻，意為“要是當(dāng)時做了某事就好了”，其否定式had better not have done表達相反的含義。You had better not have scolded her。I would rather have taken his advice。would like/ love to have done表示過去愿意做某事，但未做成。（七） 情態(tài)動詞其他用法要點1. cannot but + do “不得不，只好”。我只好去。如：He may well be proud of his son。Her appearance has changed so much that you may well not recognize her。（2）“may/ might as well + 動詞原形”意為“最好，滿可以，倒不如”，相當(dāng)于had better或to have no stron
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