随身带着把伞吧,以防今天下午下雨。
Suppose/Supposing(that) they refuse us,who else can we turn to for help?
假设他们拒绝了我们,我们还能去找谁帮忙呢?
[名师点津]
(1)在条件状语从句中,用一般现在时代替一般将来时,一般过去时代替过去将来时。
If he arrives tomorrow,I will be waiting for him at the airport.
如果他明天到,我将在机场等他。
(2)unless引导条件状语从句时,要注意这个连词自身在意义上是否定的:unless=if...not...,意为"除非,如果不"。
I will not go to their party unless I am invited.(=I will not go to their party if I am not invited.)
假如他们不邀请我,我不会去参加他们的聚会。
二、让步状语从句
让步状语从句表示前后句之间为让步关系。让步状语从句常由以下从属连词引导:though,although,as,even if/even though(即使),疑问词ever/no matter+疑问词(无论......)等。
1.though,although,as,while引导的让步状语从句
这些词引导让步状语从句时,意为"虽然,尽管",although 较为正式。
Although/Though he failed many times,(still)he kept on trying.
尽管失败了很多次,他还是继续尝试。
While I like the color,I don't like the shape.
尽管我喜欢它的颜色,但不喜欢它的形状。
[名师点津]
(1)though和although引导的让步状语从句可放在主句之前,也可放在主句之后,不与but连用,但可与表示转折的yet,still连用。