as
由于他英语懂得不多，他在字典中查阅这个单词。
果，常用于口语中。
Now (that) the weather has cleared up, we can start our journey. 鉴于天气已经晴朗，我们可以启程了。 now that, seeing that Seeing (that) he was badly ill, we sent for the doctor.
although though
Although (Though) he was over sixty, (yet) he began to learn French. 虽然他六十多岁了，但仍开始学习法语 。
We were not tired though (although) we had worked all day. 虽然我们干了一天活，但并不累。
so that 前有逗号为结果状语从句 so…that 的 so 后面跟形容词或副词
such…that 的 such 后面跟名词，如果名词 是单数就要用 such a /an…that 还可以转 换用 so…that，语气较强
unless 从句的谓语只能用肯定式。unless 和 if…not 同义，unless 是书面语，if…not 是口语，通常二者可以换用 条件状语从句中的谓语动词的时态一般 要用现在时或过去时代替一般将来时或 过去将来时
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（7） 方 式 状 从
（8） 让 步 状 从
as as if…
as though
Draw a cat as I taught you .按照我教你的画一只猫。
此处 as 译为：按照或正如
Do as you are told.按照人家告诉你做的去做。
as if 或 as though 的意义和用法基本一样。
even if 和 even though 的意思为“即使” “纵使”有退一步设想的意味，多用于书 面语中
Child as he is , he knows a lot .虽然他是一个孩子，但他懂得很多。
as 引出的状语从句多用于书面语，它比
Cold as it is, (= Though it is cold,)the children play outdoors.
such…that
if unless as/so long as in case so far as
I shall write down your telephone number that I may not forget. 我要把你的电话号码记下来，以免忘记。
We’ll tell you the truth so that you can judge for yourself. 我把真实情况告诉你，使你能自己作出判断。
在时间状语从句中，不能用将来时或过去 将来时，而要用现在时或过去时代替将来 时
（2）
Where there is a will, there is a way.有志者，事竟成。
where 与 wherever 意义基本相同，但后者
地
where
Where there is water there is life.哪里有水，哪里就有生命。
（3） 原 因 状 从
since
Since everyone is here, let’s begin our meeting.既然大家都到了，我们开始开 since 表示既然或全已知的理由,稍加分析
会。
即可表明的原因,多放句首
As he didn’t know much English, he looked up the word in the dictionary . 从句常放在句首，说明原因，主句说明结
She looks as if she is ill.看上去她好象是生病了。
从句中可以用现在时表示可能符合事实，
He acted as if (though) nothing had happened.他的行动就好象什么也没有发 也可以用虚拟语气
生。
They treat the black boy as if (though) he were an animal. 他们对待这黑孩子仿佛他是一头牲口。
语气较强，多用于书面语
点
You are free to go wherever you like.你可以随意到你喜欢的任何地方去。 Nhomakorabea状
wherever
Wherever you go, you must obey the law.无论你去哪都要遵守法律。
从
because
I came back late yesterday because I was on duty.昨天我回来晚了，因为我值 because 用来回答 why 的问题，语气最强 班。
在句子中一般用了“虽然”就不能再用“但 是”（but）但可以与 yet 或 still 连用。though / although 意义相同，用法基本一样，前 者通俗，口语化，后者正式多放主句的前
面
I’ll go even if (though) it rains tomorrow.即使明天下雨，我也要去。 even if,even though
He gave such important reasons that he was excused. 他说出了这么重要的理由，得到大家的谅解。
It is such an interesting novel that all of us want to read it. It is so interesting a novel that all of us want to read it. 这是一本十分有趣的书，大家都想看。
He arrived after the game started.比赛开始后，他到了。
We waited till (until)he came back .我们一直等到他回来。
如主句动词是持续性动作，常用肯定式，
表示“直到…为止”
She didn’t stop working until eleven o’clock .她到 11 点钟才停止工作。 如主句动词是瞬间动词，常用否定式，表
Difficulties are nothing if we are not afraid of them. 如果我们不怕困难，困难就算不了什么了。 We shall go there tomorrow unless it rains.除非下雨，我们明天就去那里。 = We shall go there tomorrow if it doesn’t rain. So/As long as you work hard, you will succeed. 只要你努力工作，你就一定能成功。 In case I forget, please remind me about it .万一我忘了，请提醒我一下。 So far as I know, the book will be published next month. 据我所知，那本书下月出版。
状语从句在主句之前时一般用逗号与主
自从 1978 年以来中国发生了巨大的变化。
句分开，如从句在主句之后则不必用标点
As soon as I arrive in Shanghai, I’ll write to you.我一到上海就给你写信。 符号。
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I had hardly got home when it began to rain.
Every time I travelled by boat, I got seasick.我每次乘船都晕船。 every time, by the time, The moment I heard the song, I felt cheerful.
the moment 等 我一听到这首歌，就感到很愉快。 Next time you come ,you’ll see him.下次你来的时候，就会见到他。
种类
（1） 时 间 状 从
从属连词 When
whenever when
while as
before after till
until since as soon as
状语从句
例句
说明
When I came into the room, he was writing a letter.当我进屋时，他正在写信。when 指的是“某一具体的时间”
目 的 状 语 从 句 中 常 用 情 态 动 词 may (might) can (could) ,should 等放在动词之 前，从句往往放在主句之后，主从句之间 不用任何标点符号
They worked harder than usual in order that they could finish the work ahead of time .他们比往常更加努力工作，为了能提前完成工作。
shoulder from behind.我正在街上走着，这时忽然有人从后面拍我的肩膀。 可以看作是并列句,这种用法的 when 分
句一般位于句末。
While it was raining, they went out.天下雨的时候，他们出去了。
while 指“在某一段时间里”，“在…期间”，
I stayed while he was away.他不在的时候我在。
Put on more clothes lest (= for fear that ) you should catch cold. 多穿点衣服，以免感冒。
We turned up the radio, so that everyone heard the news. 我们把收音机的音量放大，大家都听到了新闻。 He was so excited that he couldn’t say a word. 他十分激动，以致一句话都说不出来。