Unit 1 Art Grammar（学生版）

Book 6 Unit 1 Grammar 虚拟语气(一) 一．英语动词有三种语气：陈述语气，祈使语气和虚拟语气。(一)陈述语气 :用来陈述一个事实，或提出一种看法，有肯定、 否定、疑问或感叹等形式。 The sun is larger than the earth. Does Tom usually get up very early?(二)祈使语气: 用来表示请求、邀请、命令、警告或劝告等。Wait outside until you are asked . Let’s take a break, shall we ？(三）虚拟语气表示说话人所说的话不是事实, 而是一种假设, 愿望, 怀疑或推测。条件句分真实条件句和虚拟条件句两种。a. 真实条件句: 表示条件是真的或有可能实现的, 采用__________语气。(虚拟、陈述？)If it is fine tomorrow, I shall go shopping. b. b. 虚拟条件句/非真实条件句: 表示条件是无法实现或几乎无法实现的, 采用__________语气。(虚拟、陈述？) If I were you, I would forgive Mary. 二. 虚拟语气在状语从句中的应用, 由 if 引导的虚拟条件句 1.与现在事实相反的虚拟条件句如：（找出下列的从句和主句） If the weather were fine now, we should go for a picnic.如果现在天气好的话，我们就出去野餐了。 If he came here, he might be able to help you. 如果他来这，他就能够帮助你了。与现在事实相反的虚拟条件句的谓语动词形式: 条件从句的谓语形式 主句的谓语形式 谓语动词时态：_____________ do-_____________ be_____________情态动词：would, could, ___________, ____________+动词原形 do练习：If the God _________(give) me another chance，I_________( tell )the girl three words, “ I love you.” If I _____________(have to ) set a time limit to our love, it ___________( be) 10,000 years! 2.与过去事实相反的虚拟条件句如：（找出下列的从句和主句）She would have gone to the party if she had been invited. 要是当初她被邀请的话，她就会去参加这次聚会了。 If she hadn't called me, I would have overslept this morning. 今天早上，她要是不叫我的话，我就会睡过头了。与过去事实相反的虚拟条件句的谓语动词形式: 条件从句的谓语形式 主句的谓语形式 谓语动词时态:___________ do-情态动词：___________, could, should, ...