我们必须知道别的国家的习俗,免得他们会认为我们是没有礼貌的。
lest (should)
结构︰lest (should)
说明︰此句型意为以免。等于for fear (that) should。lest 为副词连接词,引导副词子句,在该子句中,只能用助动词 should,但 should 可省略,直接接原形动词.
I got up early lest I (should) miss the train. 我早起以免错过了火车。
We talked in a low voice lest we should wake the baby up. 我们小声说话以免吵醒婴儿。
Hide it lest he (should) see it. 把它藏起来免得他看见。
He took a flashlight lest it should get dark before he returned.
为了预防回来以前天就黑了,所以他带着手电筒。
Be careful for fear (that) you should be misunderstood. 请小心点不要被误会了。
in case should
结构︰ in case should
说明︰此句型意为唯恐以防万一。in case 是唯恐(=lest);万一(=if)之意,做副词连接词,引导副词子句,与 should 并用,以修饰主要子句.in case 置于句首,也可当 if 使用。
I stopped suddenly in case he should think that I was showing off.
我突然停住,唯恐他会认为我是在炫耀。
They watched him closely in case he should escape. 他们严密监视他,惟恐他会逃脱。
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