一、时间状语从句
常用引导词：
when（在…时）, as（当…时）, while（在…期间）, as soon as（一……就……）, before（在…之前）, after（在...之后）, since（自从...以来） , not...until（直到…才）until/till(直到…时）等
特殊引导词：
the minute, the moment, the second, every time, the day，the instant（ 瞬间，顷刻）, immediately , directly（不久，立即）, no sooner … than（一...就...）, hardly …when（刚一...就...） , scarcely … when（刚...就.../一...就...）,as soon as(一…就…)。
当用no sooner … than，hardly …when，scarcely … when作为引导词的时候，从句要部分倒装。
直到我成为了一个成年人我才意识到我的母亲是多么的特殊。
While John was watching TV, his wife was cooking.
当约翰看电视时，他的妻子正在做饭。
The children ran away from the orchard(果园), the moment they saw the guard.
孩子们一看到守卫就逃出了果园。
No sooner had I arrived home than it began to rain.
我一到家就开始下雨了。
Every time I listen to your advice, I get into trouble.
每当我听取你的建议时，我就会惹上麻烦。
二、地点状语从句
常用引导词：
where
特殊引导词：
wherever, anywhere, everywhere
Generally, air will be heavily polluted where there are factories.一般来说，有工厂的地方空气污染就严重。
Wherever you go, you should work hard.无论你去哪里，你都应该努力工作。
地点状语从句一般由连接副词where, wherever等引导，已经形成了固定的句型，例如：
Where there is no rain, farming is difficult or impossible.
在没有雨水的地方，耕作是困难的或根本不可能的。
They were good persons. Where they went, there they were warmly welcomed.他们都是好人。因此他们走到哪里都受到热烈欢迎。
You should have put the book where you found it.你应该把书放回原来的地方。
Where the Communist Party of China goes, there the people are liberated.哪里有了中国共产党，哪里的人民就得解放。
Wherever the sea is , you will find seamen.有海就有海员。
三、原因状语从句
常用引导词：
because, since, as,
特殊引导词：
seeing that, now that, in that, considering that, given that.
My friends dislike me because I’m handsome and successful.我的朋友都不喜欢我，因为我又英俊又成功。
Now that everybody has come, let’s begin our conference.既然每个人都到了，让我们开始我们的会议吧。
The higher income tax is harmful in that it may discourage people from trying to earn more.更高的收入税是有害的，因为它或许会阻碍人们努力赚钱。
王仁美 ：好，很详细。(2018-12-07 10:12)
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