2. 引导条件状语从句的连词
1)条件状语从句主要由if, unless, supposing(suppose)引导:
if:
I must leave if that’s the case. 如果情况如此我就得走了。
He will come if asked. 如果邀请的话他会来的。
unless:
I won’t write unless he writes first. 我不写信,除非他先给我写。
I’ll go there tomorrow unless it rains. 除非下雨,否则我明天去那里。
supposing:
Supposing that he asks you, will you go? 假定他请你去,你会去吗?
Supposing his plan goes wrong, what will you do then?
suppose:
Suppose she finds out, what shall we do then? 假如她发现了,我们怎么办?
Suppose you lost your job tomorrow, what would you do? 假定你明天失业,你怎么办?
provided:
I will agree to go provided(providing) (that) my expenses are paid.
如果有人给我掏路费我将同意去。
She agreed to go and work there provided that her family could go with her.
providing:
I’ll dry the dishes, providing that you do the washing-up. 如果你刷盘子,我就将它们擦干。
2)条件状语从句还有其他形式:
You will always have a home as long as I have anything.
只要我有家产,你就永远会有一个家。
They’ll stand by you even if you don’t succeed. 即使你不成功,他们也会支持你。
此外,as long as, so long as, in case, even if 都起连词作用。
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