初中英语教材中出现了表示与现在事实相反的虚拟语气,它的结构为:条件句谓语部分的动词用“过去时(be用were)”,主句谓语部分用“would (could, should, might) + 动词原形”。如:
1. If I had enough money, I would buy that house.
如果我有足够的钱,我就会买下那幢房子。
2. If I were a bird, I would fly to Beijing.
如果我是一只鸟,我就会飞到北京去。
3. How would you go to school if you had a car?
如果你有一辆小轿车,你将怎样去上学?
4. What would you do if you saw a thief stealing money from an old lady?
如果你看见小偷正在偷一位老太太的钱,你将怎么办?
        对于初中学生来说,只要掌握虚拟语气的用法,记住主、从句谓语部分的结构就可以了。

虚拟语气专项练习
从所给的四个选项中选出最佳选项。
(   )1. If I were you, I _______ stop them from swimming in the river.
         A. will            B. would    
         C. must          D. can