【文章內(nèi)容簡(jiǎn)介】
would D. must 2. Where is my pen? I ____it. A. might lose B. would have lost C. should have lost D. must have lost 3. I didn’t hear the phone. I ___asleep A. must be B. must have been C. should be D. should have been B D B 4. There were already five people in the car, but they managed to take me as well. It ____a fortable journey A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been 5. It’s nearly seven o’clock . Jack ___be here at any moment. A. must B. need C. should D. could D D may / might, can / could * might, could 比較 委婉 , 一般多用于 疑問(wèn)句 . * can, may 表達(dá)的語(yǔ)言比較隨便 . * 在以 could, might 表示 征詢對(duì)方意見 或 表示請(qǐng)求 時(shí),回答應(yīng)相應(yīng)使用 can, may. 4. To talk about permission 四、熟悉情態(tài)動(dòng)詞委婉用法: could, would, might等情態(tài)動(dòng)詞均有委婉用法,它們不是過(guò)去式而是表示語(yǔ)氣委婉、客氣、禮貌,常用與疑問(wèn)句,并多用于習(xí)慣表達(dá), 如would you please, would you mind, would you like to等, might還可以用于肯定句表示推測(cè),表示可能性小, might和 could表示征求對(duì)方意見時(shí),回答必須還成 may, can. 例 1: Could I borrow your dictionary?— Yes, of course you____. A. might B. will C. can D. should 析:選 C。該句用 can的委婉表達(dá)式 could 來(lái)征求對(duì)方意見, could 和 might通用,但回答時(shí)必須還成 can或 may,因此該題不選 A. 例 2: ____you mind my smoking here? A. Should B Could C. Might D. Would 析:選 D。征求對(duì)方意見我是否在這兒吸煙,語(yǔ)氣理應(yīng)委婉,所以應(yīng)選委婉的表達(dá)方式 would you mind…來(lái)征求對(duì)方意見。 will can could would 5. To make requests 6. To make suggestions ( ) B. Shall we do some exercise this morning? 7. To make offers ( ) 8. To give advice ( ) A. Shall I get a ticket for you? C. You should not/ought not to eat a lot before swimming. B A C Notice ! : need 、 dare 情態(tài)動(dòng)詞 (+動(dòng)詞原形 ) 行為動(dòng)詞 . need dare 。 : *否定句及疑問(wèn)句中 。 *在 if/whether之后 。 *或與 hardly, never, no one, nobody連用 。 needn’t 和 daren’t 的形式出現(xiàn) 。 dared. 多用于肯定句 。 need to do dare to do need to be done need doing : How dare you say such a thing? How dare you to say such a thing? He daren’t to speak English before such a crowd, did he? He daren’t speak English before such a crowd, dare he? Nobody need to be afraid of catching the disease. Nobody need be afraid of catching the disease. These dishes need be cleaned carefully. These dishes need to be cleaned carefully. These dishes need cleaning carefully. Note: 對(duì) need問(wèn)句的回答 : Need I finish the work today? Yes, ________________. No, ________________. No, ________________. yo