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　　So that --- 因而，以便，为了 有时so 可以省去

　　Speak louder please so that the people at the back can hear you.

　　Such …that… ---太……以至于  用法与so…that相同，但such 后面应用名词。

　　The foreign visitor was such a fast speaker that nobody could understand him.

　　6. 目的状语从句

　　引导目的状语从句的主要连词有： that， so that， in order that， for fear that， lest

　　(So) that --- 以便， 从句中常常使用一些情态动词，如：can， could， may， might， should等

　　Let’s take the front seats (so) that we may see more clearly.

　　in order that --- 为了， 与so that  相同从句中常常使用一些情态动词，如：can， could， may， might， should等

　　School was closed early in order that the children might go home ahead of the storm.

　　for fear that --- 生怕； 为了防止(某事发生)

　　He took the name down for fear that he should forget it.

　　in case  --- 万一

　　You should bring a dictionary in case you need it.

　　Lest --- 以防万一

　　The man decided to tell his boss the fact lest he would be angry with him.

　　7.  让步状语从句

　　引导让步状语从句的连词有：Although， though， as， even if， even though， no matter， however， whatever， while， whether.

　　Although， though ---虽然 although  和though 可以互换，但although 常放在句首。Though可以用于倒装。

　　Although it was raining， the plane managed to take off.

　　Though he did his best， he didn’t succeed.

　　As --- 尽管  as 引导让步状语从句时，句子通常倒装。可与though 互换。

　　Busy as he is， he never misses a football match.

　　Even if /even though ---即使

　　Even if you don’t like your boss， you should do your work.

　　However --- 不论， however 引导让步状语从句时，句子通常倒装

　　He couldn’t get there on time however fast he drove.

　　No matter (what， when， where， how) ---无论（什么，何时，何地，怎样）

　　He wouldn’t forgive me no matter how hard I begged him.

　　Whatever --- 不管

　　Whatever other people may say， she won’t change her mind.

　　While ---尽管

　　While I have sympathy for you， I can’t help you.

　　Whether ---不管，常与or not 连用

　　Whether he is good or not， the company decided to send him abroad.

　　8. 方式状语从句

　　方式状语从句常由： as，  as if，  as though

　　as ---与…… 一样

　　Do in Rome as the Romans do.

　　as if， as though --- 仿佛， 由as if或 as though引导的从句中可用虚拟语气

　　She stood at the door as if (=as though) she were waiting for someone.