when意为“在……时刻或时期”，它可兼指“时间点” 与“时间段”
while只指“时间段”，不指“时间点”，从句的动词只限于 持续性动词。但这个动作肯定和主句动作时间不一样长。 如：he was talking to me while he was watching the TV。 应该说“看电视”比“谈话”时间长。
1.John may phone tonight. I don’t want to go out
__C__he phones.
A.as long as B. in order that
C. in case
D. so that
2.The WTO cannot live up to its name _C__it does not include a country that is home to one fifth of mankind.
1.be about to do ……when…… 2.while (并列连词) “而；却”
2. as soon as , once, the moment/minute, hardly/scarcely had…when… ,
刚一…就…
no sooner had…than…
我一走进教室，就看见他站在桌子上
8.Mr. Hall understands that __C__maths has always been easy for him, it is not easy for the students.
1)such+adj.+名词 +that clause 2)so +adj./adv. +that clause 3)so + many/few + 复数名词 +that clause
much/little+不可数名词
注意：I’ll speak slowly so that you can understand me. He spoke slowly, so that I understood him.
A. Which B. when C. so that D. as if
2.Sally worked late in the evening to finish her report _A__her boss could read it first next morning.
A. so that B. because C. before D. or else
4.Jinan looks beautiful especially __w_h_e_n_/_w_h_il_e__it is autumn.
1.He was about to tell the secret __D__someone patted him on the shoulder. A. as B. until C. while D. when 2. Some people waste a lot of food __D__others haven’t enough to eat. A. however B. when C. as D. while
六、Adverbial Clauses of Result（结果状语从句） so…that…, such…that…
It is so good a story that I’ll never forget it. It is such a good story that I’ll never forget it.
5.every time each time next time
Every / Each time I was in trouble, he would come to help me out.
二、 Adverbial Clauses of Condition (条件状语从句）
if unless as(so) long as in case on condition that
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状语从句专题复习
好学生 有好的习惯和方法，加上适当的练习，加油！
时间状语从句
条件
从 句
结果状语从句
的
让步状语从句
分
类
方式状语从句
比较状语从句
一 、Adverbial Clauses of Time (时间状语从句)
1、when/ while/as
A.as long as B. while C. if D. even though
3.The men will have to wait all day __B__the doctor works faster.
A. if B. unless C. whether D. that 4.只要不影响你的学习，你可以找份兼职工作。
because, since, as, now that, for
(because of thanks to due to owing to)
because→since→as→ for。其中 because，since，as为从属连词， 引导原因状语 从句；for是并列连词，连接两个并列句。 because意为“因为”，表示直接原因，回答why的提问， 一般放在主句之后，可单独存在。 since意为“因为，既然”，侧重主句，从句表示显然的或已知的理由 as意为“由于，鉴于”，主从句并重，从句说明原因，主句说明结果 为常用词。 for意为“因为，由于”，表明附加或推断的理由，引导的分句前常 有逗号，for分句不放在句首。 巩固练习：
—Why isn't the department store open？ — they are decorating now． a．Since b．As c．For d．Because
• 1.---Why are you absent from the meeting?
• ---_____I am ill. • A. BecAause B. as C. Since D. for
A. Now that B. After C. Although D. As soon as
4.由于正下着大雨，我们将不去公园了。 As it is raining hard, we’ll not got to the park. 5.既然都到齐了，我们开始吧。 Now that / Since everyone is here, Let’s begin.
1.It will be 10 or 15 years before China becomes a developed country.
2.We hope it will not be long before we meet again.
3.Please write it down before you forget it.
• 2._____everybody knows about it, I don’t wanCt to talk any more.
• A. For B. Even C. Since D. However
3. __A__you’ve got a chance, you might as well make full use of it.
我一到家就开始下雨了。
3.till / until
我一直等到她回来。
I waited until she came back. I didn’t leave until she came back.
It was not until she came back that I left.
4.before / after / since
七、Adverbial Clauses of Concession
(让步状语从句）
1.He is unhappy though / although he has lots of money. 2.Even if / though it is raining, we’ll go there. 3.Child as / though he is, he knows a lot. 4.Whether you believe it or not, it is true. 5.Whoever breaks the law, he should be punished.
Whoever breaks the law should be punished.
6.We’ll have to finish the job, _D__. A. long it takes however B. it takes however long C. long however it takes D. however long it takes
离开教室之前，记着把灯关掉。
Please remember to turn off the light before you leave.
回家后你做了些什么？
What did you do after you returned home?
毕业后她一直在这个工厂工作。
She has been working in the factory since she left school.
You can find a part-time job as long as it doesn’t affect your study.
5 .万一发生了火灾，你首先要做什么？
In case there is a fire, what will you do first?
Adverbial Clauses of Reason (原因状语从句）
注意：It + be +一段时间 ＋since It +be +一段时间 +before