Period Four　Grammar-Subjunctive Mood (1)

感知以下课文原句，补全方框下的小题

1．If you could have three of these paintings on the walls of your classroom，which would you choose?

2．If you were an artist，what kind of pictures would you paint?

3．If the rules of perspective had not been discovered，no one would have been able to paint such realistic pictures.

4．Without the new paints and the new technique，we would not be able to see the many great masterpieces for which this period is famous.

5．There are scores of modern art styles，but without the Impressionists，many of these painting styles might not exist.

1．在虚拟条件句中，谓语动词用一般过去时(be动词常用were)表示与现在事实相反的情况，主句谓语则用"would/should/could/might＋动词原形"表示。(如句1、2、4和5)

2．在虚拟条件句中，谓语动词一般用过去完成时表示与过去事实可能不符的情况，主句则用"would/should/could/might＋have＋过去分词"表示。(如句3)

虚拟语气是英语考查的重点之一。虚拟语气用来表示说话人所说的话并不是事实，而是一种假设、愿望、怀疑或推测。其使用情况如下：

一、虚拟语气在if条件从句中的用法

if条件从句 条件从句的谓语形式 主句的谓语形式 表示与现在相反的情况 动词过去式(be动词常用were) would/should/could/might＋动词原形 If we had enough money，we would buy a computer.

如果我们有足够的钱，我们就会买台电脑。