高考英语一轮复习专题9情态动词与虚拟语气课件.ppt

1、走向高考走向高考 英语英语路漫漫其修远兮路漫漫其修远兮 吾将上下而求索吾将上下而求索人教版人教版(课标卷地区课标卷地区)高考总复习高考总复习 语法专项突破语法专项突破 第二部分第二部分专题九情态动词与虚拟语气专题九情态动词与虚拟语气第二部分第二部分情态动词一、9大情态动词的基本用法二、3组易混情态动词用法比较三、5大表示推测的情态动词用法比较仅供学习交流！仅供学习交流！虚拟语气一、状语从句中虚拟语气的用法1非真实条件句中虚拟语气的用法2.目的状语从句(1)so that/in order that从句：从句谓语用can/could/may/might动词原形。We got up early i

2、n order that we could catch the early bus.我们早起是为了能赶上早班车。(2)for fear that/in case that从句：从句谓语用should动词原形，意为“以防，万一”。We got up early for fear that we should miss the early bus.我们早起以防错过早班车。(3)lest从句：从句谓语用should动词原形，意为“以防，万一”。We got up early lest that we should miss the early bus.我们早起以防错过早班车。3方式状语从句as if

3、/as though从句：(1)与现在事实相反，从句用一般过去时；(2)与过去事实相反，从句用过去完成时；(3)与将来事实相反，从句谓语用would/could/might动词原形。名师点拨as if/as though连接的从句表示可能的事实时，不需用虚拟语气。She speaks English as if/as though she were a native of New York.她讲英语好像她是一位地道的纽约人。(虚拟语气)It seems as if he doesnt know her.他似乎不认识她。(可能的事实)二、其他从句中虚拟语气的用法1主语从句中的虚拟语气It is

4、desired/suggested/proposed/necessary/important/strange/natural/essential/a pitythat从句，从句中的谓语动词用“(should)动词原形”。Its strange that she(should)make so much trouble.很奇怪她居然惹这么多麻烦。2宾语从句中的3种虚拟语气(1)表示“建议，命令，要求”等意义时，名词性从句用“(should)动词原形”。坚持：动词insist；命令：order，command；建议：动词advise，suggest，propose，recommend；要求：动词re

5、quest，require，demand，ask。It is suggested that I(should)exercise every day.有人建议我应该天天锻炼。Teachers recommend parents not allow their children under 12 to ride bicycles to school for safety.老师建议父母出于安全考虑最好不要让12岁以下的孩子骑自行车去学校。名师点拨suggest意为“表明，暗示”时，宾语从句不用虚拟语气；insist意为“坚持说”时，宾语从句不用虚拟语气。(2)I wish(that)宾语从句(虚拟语

6、气)。表示愿望与“现在事实相反”，从句用一般过去时；How he wishes that he were a bird!他真希望他是一只小鸟。表示愿望与“过去事实相反”，从句用过去完成时；We wish that we had visited the Great Wall last year.我们要是去年去参观长城就好了。表示将来愿望实现的可能性很小，从句常用could/would动词原形。We wish we would live on the moon one day.但愿我们有一天能住在月球上。(3)would rather/preferthat从句(从句用虚拟语气)表示愿望与“现在事实

7、或将来事实相反”，从句用一般过去时；I would rather you were not here with me now.我宁愿你现在不和我在一起。表示愿望与“过去事实相反”，从句用过去完成时。I would rather you hadnt done that.我宁愿你没做过那件事。3表语从句和同位语从句中的两种虚拟语气(1)在suggestion，proposal，order，plan，idea，request，advice等名词后的表语从句和同位语从句中要用虚拟语气。其构成是“(should)动词原形”。He gave orders that the guests(should)be

8、 hospitably entertained.他下达命令客人们应该被热情款待。(2)as if,as though引导的表语从句和方式状语从句中常用虚拟语气，与现在事实相反用一般过去时；与过去事实相反用过去完成时。It looks as if he were 10 years younger today.他今天看上去似乎年轻了10岁。It looks as if he hadnt had a meal for a week.他好像一周没吃过饭了。4定语从句中的虚拟语气Its(about/high/very)timethat从句(从句用虚拟语气，谓语动词用一般过去时或should do，should不能省略)，意为“某人该做某事了”。Its time that we should go/went home.我们该回家了。三、3种特殊的虚拟语气结构