主要连词:if, unless(除非=if...not...), as long as(只要)等。
【注意】条件状语从句要符合“主将从现”的原则:即主句用一般将来时,从句用一般现在时。例如:
If it is fine tomorrow,we will have a picnic outdoors.
如果明天天气好,我们会在户外野餐。
Unless you work hard, you won't succeed.(=If you don't work hard, you won't succeed.)
除非你努力工作,否则你不会取得成功。
As long as you go, I will go.
只要你去,我就会去。
三. 原因状语从句
主要连词:because, as(由于), since(因为,既然)等。
【注意】because 引导的原因是未知的原因,as和since引导的原因是已知的原因。例如:
I didn't go to school because I was ill.
因为我病了,所以没有去上学。
As it is raining heavily, we won't go to the park.
由于雨下得很大,我们就不去公园了。
Since everyone is here, let's begin our meeting.
既然大家都到了,让我们开始我们的会议吧。
联系我时,请说是在绍兴便民网看到的,谢谢!