模块六 Module VI Making a better world《Grammar and usage(1)： Unreal conditions》最新PPT课件优质课下载

模块六 Module VI Making a better world《Grammar and usage(1)： Unreal conditions》最新PPT课件优质课下载

三. 几种特殊的句型结构(as if/wish/if only…)

四.部分情态动词+have done 表示的虚拟语气

1.If I were a bird, I would fly in

the sky.

2. If he had been there, it wouldn’t have happened.

3.If it should rain tomorrow, they wouldn’t go for an outing.

（与现在事实相反）

（与过去事实相反）

请说出以下例子是与什么事实相反

(与将来事实相反)

虚拟语气

三种基本形式(以 do 为例)：

表示与事实情况相反

条件从句的谓语形式

主句的谓语形式

与现在事实相反

与过去事实相反

与将来事实相反

过去式(did)

(be常用 were)

would / could / might / should +do

过去完成式

(had +done)

would / could / might / should +have done

①were to do