1.引起條件狀語從句的連詞:
l) if 如果,假如:
lt doesn't matter if you can't find her.
如果你找不到她也沒有關系。
If you do it, so can I.
你要是能辦到,我也能辦到。
2) even if 即使:
They'll stand by you even if you don't succeed.
即使你不成功,他們也會支持你。
We wouldn't lose heart even if we should fail ten times .
我們就是失敗十次也不灰心。
3) unless 除非(……否則),如果不:
Don't Come unles I telephone.
我不打電話你就別來。
You won't catch the bus unless you run.
除非你跑,否則你就趕不上公共汽車了。
4) incase 如果,以防:
Incase I forget, please remind me about it.
如果我忘了,請你提醒我。
We'd better take our raincoats in case it should rain.
我們最好帶上雨衣以防下雨。
5) provided (that)要是,只要:
I'll come provided (that) you let me know in good time.
你要是及時通知我,我是會來的。
They may swim provided an adult accompanies them.
只要有大人陪,他們可以去游泳。
6) suppose (supposing)假定,要是:
Suppose (Supposing) (that) he won't agree, what shall we do?
假定他不同意怎么辦?
Supposing the Plane is late?
要是飛機晚點了呢(怎么辦)?
7) as Iong as 只要:
I am happy as long as you are happy.
只要你高興我就高興。
As long as you understand, we shall say no more about it.
只要你理解,我們就不再說什么了。
8) on condition that 只要,條件是:
I'll come on condition that John is invited, too.
只要也邀請約翰,我就來。
You may borrow the book, on condition that you do not lend it to anyone else.
你可以借這本書,條件是你不把它借給別人。