1 .条件状语从句：条件从句可由if, unless, suppose, supposing, in case, so ( as ) long as, on condition ( that ), provided ( that )等词引起：
They can t be up early if they go to be bed late.
如够他们睡得晚，起来就不会早。
Unless sleep is adequate, no one feels like exercising.
除非睡眠充足，否则谁也不想锻炼。
In case I forget, please remind me about it.
如果我忘了，请提醒我一卜。
She didn t mind anything so long as she was with Jimmy.
只要能和吉米在一起她什么也不在意。
I'll stay as long as you want me .
只要你要我留下我就留下。
I'll come on condition that Amy is invited, too.
我可以来，条件是也邀请爱梅。
2 .让步状语从句：让步状语从句可由though, although, even if, even though, however, Whatever, no mattar 等词引起：
He went Out, though it was raining .
尽管下雨他还是出去了。
Although thy are poor they are happy .
他们虽然穷却很快乐。
She was English, even if she spoke more like an Italian.
尽管她讲话更像意大利人，她却是英国人。
Even though it would be Sunday, I thought he might be willing.
尽管那会是星期天，我想他也可能愿意。
He can answer the question however hard it is.
不管问题有多难他都能回答。
Whatever you decide to do, I'm behind you,
不管你决定干什么我都支持你。
We wanted to dance, no matter what the music was.
我们想跳舞，不管是什么音乐。
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练习及答案
练习一：将下面从句翻译成中文
1. He might be cross if he knew we were here.
1 .要是他知道我们在这里他可能会生气。
2. I shall return Thursday unless something unexpected happens.
2 .除非发生意想不到的事，我们将在星期日回来。
3. Suppose ( supposing ) your father saw you what would he say ?
3 .要是你父亲看见了你他会怎样说?
4. In case he arrives before I get back, please ask him to wait.
4 .万一他在我回来之前到达请让他等一等。
5, Your conduct, as far as I can see, is absolutely unjustifiable.
5 .照我看你的行为是没有道理的。
练习二：在下面状语从句部分划线
1. Though it was weak, it could fly.
1. Though it was weak
2. Although I was tired, I had to go on working.
2. Although I was tired
3. Even if she were dying of a brokenheart she would not say so.
3. Even if she were dying...
4. He is an honest man, even though I have opposed him,
4. even though I have opposed him
5. We shall never succeed however much we try.
5. however much we try
