1、条件状语从句

    常用引导词：if, unless,whether(whether...or not)

    特殊引导词：as/so long as, only if, providing/provided that, supposing that, in case（美语中表条件，英语中表目的）, on condition that

    We’ll start our project if the president agrees.

　　如果总统同意，我们将开始我们的项目。

    You will certainly succeed so long as you keep on trying.

　　只要你继续努力，你一定会成功的。

    Provided that there is no opposition, we shall hold the meeting here.

　　如果没有人反对，我们就在这里开会。

    2、让步状语从句

    常用引导词：though, although, even if, even though

    特殊引导词： as(用在让步状语从句中必须要倒装)，while ( 一般用在句首 )，no matter …， in spite of the fact that, whatever, whoever, wherever, whenever, however, whichever

    Much as I respect him, I can’t agree to his proposal.

    尽管我很尊敬他， 但是我却不同意他的建议。

    The old man always enjoys swimming even though the weather is rough.

    老人都很喜欢游泳，即使天气很恶劣。

    No matter how hard he tried, she could not change her mind.

    不论他如何努力，她都不会改变她的主意。

    He won’t listen whatever you may say.

    他不会听你说什么。

    3、比较状语从句

    常用引导词：as(同级比较), than(不同程度的比较)

    特殊引导词：the more … the more … ; just as …， so…; A is to B what/as X is to Y; no … more than; not so much A as B

    She is as bad-tempered as her mother.

    她和她妈妈一样脾气很坏。

    The house is three times as big as ours.

    这房子是我们的三倍大。

    The more you exercise, the healthier you will be.

    你运动的越多，你就越健康。

    Food is to men what oil is to machine.

    食物之于人，犹如油之于机器。

    4、方式状语从句

    常用引导词：as, as if, how

    特殊引导词：the way

    When in Rome, do as the Romans do.

    入国问禁，入乡随俗。

    She behaved as if she were the boss.

    她表现得好像她是老板。

    Sometimes we teach our children the way our parents have taught us.

    有时，我们用父母教导我们的方式教导我们的孩子。