2. 地址状语从句
地址状语从句一般由where，wherever引导，如：
Where there is a will，there is a way. She painted wherever she happened to be.从属连词还能与any，no，every等一块构成复合句，引导地址状语从句。如：
Everywhere you go，you will be warmly welcomed.
3. 方法状语从句
引导方法状语从句的连词有as，as if，as though等，从句一般坐落于主句之后，如：
He had never blushed1 as she blushed then.（as作根据或像解。）
as if和as though都做好象解，两者可以互换，从句既可用陈述语气（表示可能符合事实的状况），又可用虚拟语气（表示与事实不符的状况），如：
I remember the whole thing as if it happened yesterday. His mother loves me as if / as though I were her daughter.
4. 条件状语从句
引导条件状语从句的连词有：if，unless，as / so long as，suppose （that），supposing （that），in case，when等。条件状语从句可以分为真实条件状语从句和非真实条件状语从句。
⑴真实条件句真实条件句表示现实或可能的状况，由if引导，它的主句可以是陈述句，疑问句或祈使句，可置于主句之前或之后。
If you heat ice，it melts2. If it rained，I went by bus. unless引导的否定条件状语从句，在乎义上等于ifnot，如：
Dont come unless I telephone. as / so long as，provided / providing （that）意为只须、假如，如：
You can borrow this pen as long as you can keep it well. in case在英国英语中表示目的，在美国英语中可表示条件，意为假如、万一，如：
In case the house burns down，well get the insurance money.
⑵非真实条件句请参阅第十一章虚拟语气。
5.让步状语从句
引导让步状语从句的连词有：although，though，even if，even though，if，for all that，when，while，whetheror，whatever，no matter what等。
although和though意义一样，都作虽然、即便解，都表示让步，通常情况下可互换用，只不过although语气较重，大多置于句首。如：
They are generous3 though they are poor. Although he was Japanese，he spent most of his life in China. even if
和even though都作即便解，两者可以互换用，如：
She insisted on her own opinion even though / even if he was wrong. if作即便、虽然解，也表示让步，如：
If he is wrong，he is honest. whetheror作不论是不是或不论还是解，如：
You dont have to worry me whether I am well or ill.为了强调让步意义，在正式文体或文学作品中，常用as引导让步从句，从句的补语或状语置于句首。如：
Tall as he was，he couldnt reach the TOP of the shelf. Strong as you may be，you cannot lift it.词尾为-ever的wh-词可以与no matter wh-词互换用，作无论解，后者常用于口语中，如：
Whoever4 / No matter who rings，tell him Im out. Wherever / No matter where he is，he will be thinking of you.由whenever，wherever，however引导的从句，也可以分别看作时 间状语从句、地址状语从句和方法状语从句。把它们当作让步状语从句是由于它们常有no matter when （where，how）的意思。
6.缘由状语从句
缘由状语从句一般由because，since，as，when now （that），seeing （that），considering （that）等引导。
because，since和as三者有什么区别如下：
because的语势最强，第二是since，第三是as. because可以回答why引导的特殊问句，而since和as不可以。
because引导的从句可以被just，only，simply等副词修饰，也可以用并列连词构成并列的because从句，而since和as则不可以。如：
We pardoned him only because he was still young. for表示缘由时，作由于解，多用于正式文体，有时可以与because换用，但for从句只能置于主句之后。如：
She didnt go to school，for / because she was ill. now （that）和seeing （that）都作既然解，一般可与since或as换用，如：
Now （that） you have come，you may as well stay. Seeing （that） he is inexperienced，he is not fit for the work.
7. 结果状语从句
引导结果状语从句的连词有：so that，sothat，such that，suchthat，that等。
当从句前面有逗号时，so that中that可省略，如：
It was dark，so （that） we could see nothing in front of us.So 形容词 / 副词 that是引导结果状语从句的常用结构，如：
He talked so loud that he annoyed5 the speaker. He was so brilliant that he made a lot of inventions.such （a） 形容词 名词 that与sothat的意义相同，如：
It was such a hot day that people could not go out. He painted such beautiful pictures that the visitors were lost in admiration6. that可以单独引导结果状语从句，如：
The question is of great importance that it cannot be neglected7.
8. 目的状语从句
引导目的状语从句的连词有：in order that，so that，so，that，in case，for fear that，lest等。
in order that与so that的意义和使用方法基本相同，in order that多用于正式文体，常表示经过认真考虑的目的，如：
In order that he would have more space for painting，he bought a big house. You ought to write to him，in order that he wont feel we are hiding things from him. So和that可视为so that的省略形式，但不如so that常用，如：
Bring it closer so / that I may see it better. for fear that，in case和lest都表示否定的目的，等于so thatnot或in order thatnot，作以免、以防解。
He wrote the name down for fear that he should forget it . lest限于正式文体，它所引导的从句中的谓语动词多用should be型或be型虚拟形式，如：
He hid the box lest8 it （should） be stolen. in case引导的从句谓语既能够用虚拟形式，又可用陈述语气，如：
Better take more clothes in case it is cold. She doesnt dare9 to go out in case she is recognized / （should） be recognized.
