知識講解及情態(tài)動詞用法(文件)
【正文】 he came to work by bus this morning. 邁克一定還沒有找回他的車，因?yàn)樵缟纤亲财噥砩习嗟摹? Linda has gone to work, but her bicycle is still here. She must have gone by bus. 3) ought to have done sth, should have done sth 本應(yīng)該做某事，而事實(shí)上并沒有做。 4) needn39。 had better表示 最好 had better 相當(dāng)于一個助動詞，它只有一種形式，它后面要跟動詞 原形。 You had better have e earlier. would rather表示 寧愿 would rather do would rather not do would rather… than… 寧愿 …… 而不愿。 will 和 would 注意： 1） would like； Would like to do = want to 想要，為固定搭配。 Won39。答語中 of course，表示肯定的語氣，允許某人做 某事時，用 can 和 may 來表達(dá)，不能用 could 或 might。ve told him already. A. needn39。t 答案 A。t 將不 , 不會的。t 不應(yīng)該。t fet to e to my birthday party tomorrow. ______. A. I don39。t 答案 B. will 既可當(dāng)作情態(tài)動詞，表請求、建議、也可作為實(shí)義動詞表 意愿、意志、決心 ，本題表示決心，選 B。其他的詞作為實(shí)義動詞使用，變疑問，否定時，須有do 等助動詞協(xié)助。作為情態(tài)動詞，兩者都只能用于疑問句，否定句和條件句。t. 3) need 的被動含義： need, want, require, worth（形容詞）后面接 doing也可以表示被動： need doing = need to be done 。 1) 實(shí)義動詞： need （需要 , 要求） need + n. / to do sth 2) 情態(tài)動詞： need，只用原形 need 后加 do，否定形式為 need not。由于后句為過去時，告訴秘密的動作又發(fā)生在其前因，此地應(yīng)用過去完成 時，但它在情態(tài)動詞 ought to 后，所以用 have。它們的疑問，否定形式應(yīng)予以注意： Do they have to pay their bill before the end of the month? She didn39。t C. I can39。t。t 禁止、不能。t 不必，不用。t C. mustn39。 should 與 you 連用，用來提出勸告。t Must you…? /don39。 Would you like some cake? 3）否定結(jié)構(gòu)中用 will，一般不用 would, won39。 If I have a choice, I had sooner not continue my studies at this school. I would rather stay here than go home. = I would stay here rather than go home. 典型例題 Shall we go skating or stay at home? Which ___ do? A. do you rather B. would you rather C. will you rather D. should you rather 答案 B。d better put on my coat. She39。t have done so. The weather was hot. 5) would like to have done sth 本打算做某事 I would like to have read the article, but I was very busy then. should 和 ought to sh
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