Book 6 Unit 1，Grammar虚拟语气(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 just 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, 采用陈述语气。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, 采用虚拟语气。真实条件句： 1.If I give the sweet to him, he will feel happy. 2.If it is fine tomorrow, I shall go shopping. If 引导的真实条件句的结构： If 从句中的谓语动词形式主句的谓语动词形式 do/ does/ am/ are/ is shall/ will do 一. 虚拟语气在状语从句中的应用由 if 引导的虚拟条件句1.Eg:If the God gave (give) me another chance，Iwould tell (tell) the girl three words, “ I love you.” If I had to (have to) set a time limit to our love, it_would be (be)10,000 years! 与现在事实相反的虚拟条件句 条件从句 主句 一般过去时 （be 多 were） would/should/could/might＋动词原形2. Eg:1）If I had not been busy last night,I would have gone to see the film with you. 2）If he had driven more carefully,he would not have had the car accident yesterday.1与过去事实相反的虚拟条件句 条件从句 主句 过去完成时 would/should/could/might＋have done 3 .eg:If you got/ were to get/should get(get) a full mark next time, I would hold (hold) a party for you.与将来事实相反的虚拟条件句(通常有时间状语) 条件从句 主句 一般过去时（be 多用 were）should do,were to do would/should/could/might＋动词原形 总结： if 虚拟条件句的结构： 条件从句主句与现在事实相反 If 主语 +___________（be 的过去式用___________） ________________________...
