条件状语和方式状语的区别

一，条件状语从句可以位于主句前面或后面。

1、 由if，unless引导if 表示正面的条件，意为“如果”；unless表示反面的条件，意为“除非，如果不”（if not）You will be late unless you leave immediately.除非你立即走，否则，你会迟到。If you don't hurry up, you'll be late. 如果你不快点，你就会晚了。We'll go there unless it rains. 如果不下雨，我们就去那儿。

2、由suppose，supposing，as/so long as， providing, provided, on condition that和in case等引导这类连词（词组）意思相近，有：“如果、假设、即使、在……条件下”等意义。Suppose (Supposing) he is ill, what shall we do? 如果他病了，我们该怎么办？You'll do all right, as long as you follow his advice.只要你听从他的劝告，你就会干得很好的。In case John comes, please tell him to wait.假如约翰来了，请让他稍候。You may keep the book a further week provided (that) no one else requires it.倘若这本书没有其他人想借的话，你可以再续借一个礼拜。二，方式状语从句:方式状语从句一般由as(正如；按照)，as if/as though(好像),the way等引导。

1、as 和just as引导方式状语从句这两个连词的意思是“如…，犹如…，正如…”（in the same manner that）。just as 比as的强调性更强。You must do everything as I do.你们要照我这样去做。Just as the water is the most important of liquids, air is the most important gases.正如水是液体中最重要的一种一样，空气是气体中最重要的一种。

2、as if 和as though引导方式状语从句as if 和as though意为“好像、仿佛”可以用虚拟语气表示不符合事实或与事实相反的情况；也可以用陈述语气表示符合事实的情况。He walkedslowly as if he had hurt his leg. 他慢慢地走，她像腿受伤的样子。He spoke as if he knew the question very well.他说得好像对这个问题知道得很清楚。

3、the way引导方式状语从句the way它的作用相当于the manner，后面的引导词常用that引导方式状语，而且经常省略。此时一般不用in which引导。I don’t like the way you speak to her.我不喜欢你和她说话的方式。We didn't like the way that he treated us.我不喜欢他对待我们的方式。