2019-2020学年北师大版高中英语选修7教案:Unit21:Grammar practice教案
2019-2020学年北师大版高中英语选修7教案:Unit21:Grammar practice教案第2页

   如果明天不下雨,我们就去公园.

3.如果假设的情况是过去或现在都不存在的,或将来不大可能发生的,则是虚假条件句,共有三种情况.

Eg. If he had seen you yesterday, he would have asked you about it.

如果他昨天见到你,他会问你这件事的.(事实上他昨天没有见到你,因此也未能问你这件事.)

Step 3 Summary and practice.

Then encourage the students to have a summary about the diffient conditionals.in groups. After their discussion ,teacher show the following form , Tell them to find out whether the contents are similar to theirs,What information have they ignored?

在含有虚拟条件句的复合句中,主句和从句的谓语都要用虚拟语气.虚拟条件从句和主句的动词形式列表如下:

时间 从句 主句 与现在事实相反 动词过去式(be动词的过去式一般用were) would(should/could/might)+动词原形 与过去事实相反 Had+过去分词 would(should/could/might)+had过去分词 与将来事实相反 动词过去式/should+动词原形

were to+动词原形 would(should/could/might)+动词原形 虚拟条件句的用法