知識講解及情態(tài)動詞用法(參考版)
2024-11-23 22:00本頁面
【正文】 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。作為情態(tài)動詞，兩者都只能用于疑問句，否定句和條件句。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。其他的詞作為實義動詞使用，變疑問，否定時，須有do 等助動詞協(xié)助。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 答案 B. will 既可當(dāng)作情態(tài)動詞，表請求、建議、也可作為實義動詞表 意愿、意志、決心 ，本題表示決心，選 B。t C. I can39。t fet to e to my birthday party tomorrow. ______. A. I don39。t。t 不應(yīng)該。t 禁止、不能。t 將不 , 不會的。t 不必，不用。t 答案 A。t C. mustn39。ve told him already. A. needn39。 should 與 you 連用，用來提出勸告。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，不能用 could 或 might。t Must you…? /don39。 Won39。 Would you like some cake? 3）否定結(jié)構(gòu)中用 will，一般不用 would, won39。 will 和 would 注意： 1） would like； Would like to do = want to 想要，為固定搭配。 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。 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。d better put on my coat. She39。 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。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 should 和 ought to 都為 應(yīng)該 的意思，可用于各種人稱。 4) needn39。 You ought to (should) have been more careful in this experiment. He ought not to have thrown the old clothes away.（事實上已扔了。 Linda has gone to work, but her bicycle is still here. She
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