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While my wife was reading the newspaper, I was watching TV.
While Jim was mending his bike, Lin Tao came to see him.
While they were talking, the bell rang.
You can’t do your homework while you’re watching TV.
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as
• 由as引导的时间状语从句,[表示时间]当..., 的时候 , 一边... 一边, 随着。
• 如: • 1. She sang as she worked. • 她一边工作一边唱歌。 • 2. I saw him as he was getting off the bus. • 正当他下公共汽车时, 我看见了他。 • 3. As a child, he lived in America. • 他小时候住在美国。 • 4. You will grow wiser as you grow older. • 随着你年令的增长, 你会变得更聪明。
初中英语时间状语从句优秀课 件
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类型
1.时间状语从句 2.地点状语从句 3.条件状语从句
4.原因状语从句 5.结果状语从句 6.目的状语从句
7.让步状语从句 8.方式状语从句 9.比较状语从句
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时间状语从句
定义:在句子中起时间状语作用的句 子称为时间状语从句,可放在句首或
者句尾。
时间状语从句
引导时间状语从句的普通类从属连词有 when(当……时), while(在……期间), as(当……,一边……一边……), before(在……之前), after(在……之后), since(从……以来), till/until(直到), not...until (直到...才) whenever(无论何时), as soon as(一……就)等。
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• (二)、while只能表示某一段时间,不能 表示某一点时间.在while引导的时间状语 从句中,其谓语动词只能是延续性的,而且 也只能与主句中的谓语动词同时发生或 存在.
• 例如:1、While Jim was mending his bike,Lin Tao came to see him.正当吉姆 修自行车时,林涛来看他.
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when
• 由“when” 引导的从句:表示主句的动作和 从句的动作同时发生,或从句的动作发生在主 句动作之前。其谓语动词可以是延续性的,也可 以是非延续性的,
例:1. I was going out when a visitor came. (我正要出门,有客人来访。)(动词同时发生。)
2. I shall tell her the good news when she comes.
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• 猜一猜:As a boy,he likes to playing basketball.
• I like playing basketball,while he likes playing the piano.
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when、while
(一)、when,while都有“当……时候”的意思. when既可表示某一点时间,也可以表示某一段时间 .在 when引导的时间状语从句中,其谓语动词可以是延续性的, 也可以是非延续性的,可与主句中的谓语动词同时发生,也 可在其后发生. 例如:1、I was just reading a book when she came into my room.她走进我房间时,我正在看书. 2、Were you writing when the teacher came in?老师进 来的时候,你在写信吗? 3、When he was a child he was always trying out new ideas.他小时候就常常试验一些新的设想.
3.When he was a child ,he was always trying out new ideas.
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while
while 引导的从句:表示“当……过程中”,强 调某一段时间内主句和从句中谓语动词所表示的 动作在同一时期发生。由于while从句表示一个 持续的行为,所以从句中要用持续性动词,并且 持续性动词常用进行时态。 • 例: • Keep an eye on my little sister while I am away. • (我不在时,请照看一下我的小妹妹。) • While we were watching TV, Jim came in. • Strike while the iron is hot. 趁热打铁。
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• As the time went on,the weather got worse. • The atmosphere gets thinner and thinner as
the height increases. • 3. As years go by, • China is getting stronger and richer.
• 2、You can’t do your homework while
you’re watching TV.你不能一边看电视一
边做家庭作业.
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(三)、另外,when和while的区别还在 于:while引导的时间状语从句多用进行 时态,而when引导的时间状语从句多用一 般时态.
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延续性动词
• 表示能够延续的动作,这种动作可以延 续下去或产生持久影响。如:study, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay 等。
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终止性动词
也称非延续性动词、瞬间动词或点动词, 表示不能延续的动作,这种动作发生后立即 结束。 如:open, die, close, begin, finish, come, go, move, borrow, lend, buy,arrive, reach,fall,give,join,marry等。