began to rain. • No sooner had he arrived / He had no sooner arrived than she
started complaining.
• ③ directly, immediately, the moment, the minute that… 一……就 • He made for the door directly he heard the knock.
乎同时）
when
既可以表示在某一点的时候，又可表示在某一段 时间内。
when可以和延续性动词连用，也可以和短暂性动 词连用；而while和as只能和延续性动词连用 ;
when从句的谓语动词可以ቤተ መጻሕፍቲ ባይዱ主句谓语动作之前、 之后或同时发生；while和as从句的谓语动作必须 是和主句谓语动作同时发生。
1.When we were at school, we went to the library every day.（在一段时间内）
myself with a towel ____ I heard the steps. A. while B. when C. since D. after
答案： B 解析：下划线处表示 “正在这时， 突然……”， 四个选项中只有when可以表 示此含义。
• 引导时间状语从句的连接词除上述外还有： • ① till, not … until …, until, before, since • Don’t get off the bus until it has stopped. • He waited for his father until (till) it was twelve o’clock. • It will be five years before he returns from England.
• ② hardly / scarcely … when, no sooner … than, as soon as once表 示“一……就”
• As soon as I have finished it , I’ll give you a call. • Once you show any fear, he will attack you. • We had hardly got / Hardly had we got into the country when it
状语从句
制作者：倪鹏 吴伟坚 演讲者：吴年丽 组员：秦翌翔 魏琴 刘雪莹
条件状语
结果状语
地点状语
目的状语
原因状语 时间状语
比较状语
方式状语 让步状语
1、时间状语从句
常用引导词:when, as, while, as soon as, while, before, after, since , till, until
while 意思是“当……的时候”或“在某一段时间 里”。
从句动作和主句动作同时发生，且从句动作为延 续性动词时，when，while，as都可使用。
主句中的动作或事情是在从句中的动作或事情的 进展过程中发生，从句中的动词一般要用延续性 动词。
1.When ／While ／As we were dancing，a stranger came in．（dance为延续性动词） 。 2.Please don’t talk so loud while others are working.
特殊引导词:the minute, the moment, the second, every time, the day,the instant, immediately , directly, no sooner … than, hardly …when, scarcely … when
例句 I didn't realize how special my mother was until I became an adult.
Back to
延续性动词表达的动作能够延续，如：keep保存，维持；walk走路；read 阅 读等；非延续性动词也称瞬间动词，所表达的动作不能够延续。如：hear听 到；return 归还；see看见。
school
1.（11浙江4）
One Friday, we were packing to leave for a weekend away
While John was watching TV, his wife was cooking. The children ran away from the orchard(果园) the moment they saw
the guard. No sooner had I arrived home than it began to rain. Every time I listen to your advice, I get into trouble.
___ my daughter heard cries for help.
A. after
B. while
C. since
D.
when
• 答案：D
• 解析：句意为—— 星期五那天，当我们正准备出发去过周末的时
候，我的女儿听到有人叫救。易混淆：在while和when这里犹豫。
对比： (2006湖南) 2. I had just stepped out of the bathroom and was busily drying
2.Sorry，I was out when you called me．（ call为短暂性动词）对不起，你打电话时我 刚好外出了。
3. When I got to the airport，the guests had left．（got to后发生）当我赶到飞机场时， 客人们已经离开了。
while
连接词类别 作 用
例句
as
as 表示“当……的时候”，往往和 when/ while 1.She came up as I was cooking.（同时）
通用，但它着重强调主句与从句的动作或事情同
时或几乎同时发生。
2.The runners started as the gun went off.（几