2015年教师资格考试英语重点句型复习（十）

句型34

in case of 以防;万一

in case that 以防，万一

[例句]

In case of fire, what should we do?

Please remind me about it in case I forget/should forget. 万一我忘了，请提醒我。

In case John comes/should come, please tell him to wait.

Please take your umbrella in case .带上雨伞，以防下雨。

句型35

unless 除非，如果不

[例句]

I shall go tomorrow unless it rains. 如果不下雨，我明天去。

-Shall Tom go and play football?

-Not unless he has finished his homework. 除非他完成作业，否则不能出去。

I won t go unless he comes to invite me himself.

除非他本人来邀请我，不然我是不会去的。

I won t attend his birthday party unless invited . 除非被邀请，否则我不

去参加的生日晚会。

句型36

when引导的从句

when除了用来引导主语从句、宾语从句、时间状语从句、表语从句和定语从句，还有一种用法值得关注，那就是when引导并列分句，意思是 这 时突然;就在那时 ，强调另一个动作的突然发生。常用于以下句型中：、主语 + be doing when 意思是 正在做某事这时 、主语 + be about to do when ;、主语+be on the point of when 意思是 正要去做某事这时

[例句]

One day Chuck was on a flight across the Pacific Ocean when suddenly his plane crashed. 有一天，Chuck正在太平洋上飞行，这时他的飞机突然爆炸了。