高考英语《语法》专题复习系列课件情态动词和虚拟语气

高考英语语法 专题复习系列课件

情态动词和虚拟语气

情态动词与虚拟语气有千丝万缕的联系， 它们往往放在一起考查。在近年高考试题中， 对情态动词的考查几乎每年都有。纵观近几年 的高考试题可以看出，高考对情态动词的考查 热点主要包括： 1. 准确把握情态动词表允许、推测、判断 等用法。 2. 准确把握情态动词在虚拟语气结构中的 使用。 3. wish, as if/though, if only, would rather +从句，It's time+从句等句型中的虚拟语气。

4. 表示“坚持、命令、建议、要求”的词 汇后及各类从句中的虚拟语气。 5. 虚拟语气在条件状语从句中的倒装。 2012年高考将重点考查情态动词表推测和 可能性、必要性、请求、允许、允诺的情况， 以及对非真实条件虚拟语气和名词性从句中虚 拟语气的运用。

练一练1.Oh, I’m not feeling well in the stomach. I ____ B so much fried chicken just now. A. shouldn’t eat B. shouldn’t have eaten C. mustn’t eat D. mustn’t have eaten 2.---Why hasn’t Jane arrived yet? ---She ____ again in the morning? B A. shouldn’t have overslept B. may have turned off the alarm clock C. must have no one t o call her D. should have someone to wake her up

3.---Did you go to the movie the day before yesterday? A ----No. We ___, but we decided not to. A. should have gone B. could go C. should go D. could have gone 4. As it turned out to be a small house party, weD ____ so formally. A. needn’t dress B. didn’t have to dress up C. Might not have dressed up D. needn’t have dressed up

5. I’m rather surprised you haven’t reported C him to your teacher. In my opinion, you ___ this as soon as you found out he was cheating. A. must have done B. might have done C. should have done D. could have done

can could may might shall should must will would ought tohave to dare (daren’t) need (needn’t) used to

表示推测

情态动词不表示推测

读下面的句子体会dare 和 need 的用法1. I daren’t ask her for a rise. 2. How did you dare to tell her that?

3. I wonder whether he dare stand up in public. 4. I don’t know how she dares to wear that dress.5. Do you need any help?

6. I wonder whether he need send it immediately. 7. I need hardly tell you that the work is

dangerous.8. The garden doesn’t need watering at the

moment.9. You needn’t finish that work today.

可兼做行为动词的情态动词: need 、dare情态动词 (+动词原形) 行为动词

1.无人称和数的变化; 多用于肯定句; need 2.尤其用于： (sb.) need to do 否定句及疑问句中; dare to do 在if/whether之后; . (sth.) need to be 或与hardly, never, no one, nobody 连用; done dare 3.常以needn’t 和 daren’t (sth.) need doing 的形式出现; 4. dare 有其过去时 dared.

判断正误:How dare you say such a thing?

T F

How dare you to say such a thing?

He dare

n’t to speak English before such a crowd, did he?

F

He daren’t speak English before such a crowd, dare he? T

Nobody need to be afraid of catching thedisease. disease.

T F F

Nobody need be afraid of catching the

These dishes need be cleaned carefully.

These dishes need to be cleaned carefully.These dishes need cleaning carefully.

T

T

注意对need问句的回答:

--Need I finish the work today? --Yes, ______________. you mustNo, ________________. you needn’t No, ________________. you don’t have to

needn’t 对其它情态动词的回答:

--Shall I tell John about it?--No, you _____________________. needn’t (don’t have to) --Must we do it now?

--No, you _____________________. needn’t (don’t have to)