in case 有哪些用法
用法一 、起副词作用,其意为以防万一。
You had better carry some money in case. 你最好带些钱,以防万一。
It may rain; youd better take an umbrella in case. 可能下雨你最好带把伞,以防万一。
用法二 、起连词作用,用于引导条件状语从句和目的状语从句
① 引导条件状语从句,意为假使如果。如:
In case he comes, let me know. 如果他来的话,告诉我一声。
In case theyre late, we can always sit in the bar. 要是他们来晚了,我们总可以在酒吧里坐一坐。
这类从句的谓语除通常使用陈述语气外,有时也可使用(should+)动词原形这样的虚拟语气。如:
I bought the car at once in case he changed [should change] his mind. 我马上买下那辆汽车,以免他变卦。
② 引导目的状语从句,意为以防免得。如:
Be quiet in case you wake the baby. 轻点儿,别吵醒婴儿。
Write the telephone number down in case you forget. 把电话号码写下来以免忘了。
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