Whoever / No matter who rings，tell him I‘m out. Wherever / No matter where he is，he will be thinking of you.由whenever，wherever，however引導的從句，也可以分別看作時 間狀語從句、地點狀語從句和方式狀語從句。把它們當作讓步狀語從句是因為它們常有no matter when （where，how）的含義。
6.原因狀語從句
原因狀語從句通常由because，since，as，when now （that），seeing （that），considering （that）等引導。
because，since和as三者的區別如下：
because的語勢最強，其次是since，再次是as. because可以回答why引導的特殊問句，而since和as不能。
because引導的從句可以被just，only，simply等副詞修飾，也可以用并列連詞構成并列的because從句，而since和as則不能。如：
We pardoned him only because he was still young. for表示原因時，作“因為”解，多用于正式文體，有時可以與because換用，但for從句只能置于主句之后。如：
She didn‘t go to school，for / because she was ill. now （that）和seeing （that）都作“既然”解，通常可與since或as換用，如：
Now （that） you have come，you may as well stay. Seeing （that） he is inexperienced，he is not fit for the work.
7. 結果狀語從句
引導結果狀語從句的連詞有：so that，so…that，such that，such…that，that等。
當從句前面有逗號時，so that中that可省略，如：
It was dark，so （that） we could see nothing in front of us.“So 形容詞 / 副詞 that”是引導結果狀語從句的常用結構，如：
He talked so loud that he annoyed the speaker. He was so brilliant that he made a lot of inventions.“such （a） 形容詞 名詞 that”與“so…that”的意義相同，如：
It was such a hot day that people could not go out. He painted such beautiful pictures that the visitors were lost in admiration. that可以單獨引導結果狀語從句，如：
The question is of great importance that it cannot be neglected.
8. 目的狀語從句
引導目的狀語從句的連詞有：in order that，so that，so，that，in case，for fear that，lest等。
in order that與so that的意義和用法基本相同，in order that多用于正式文體，常表示經過認真考慮的目的，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 won‘t feel we are hiding things from him. So和that可視為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，相當于so that…not或in order that…not，作“以免、以防”解。
He wrote the name down for fear that he should forget it . lest限于正式文體，它所引導的從句中的謂語動詞多用should be型或be型虛擬形式，如：
He hid the box lest it （should） be stolen. in case引導的從句謂語既可以用虛擬形式，又可用陳述語氣，如：
Better take more clothes in case it is cold. She doesn‘t dare to go out in case she is recognized / （should） be recognized.