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中学英语词汇是英语的常用词。
熟练掌握中学词汇,就能流利说英语。
今天我们来学习while和when的用法。
请熟读例句到会说:
什么时候,何时;什么情况下,什么场合下;(用于时间的表达方式之后)在那时;其时;当时(副词)
什么时候,何时(代词)
在…时候,当…时,在…期间,在…之后;在任何…时候(连词)
I had an active social life when I was at college.
我在大学时社交生活丰富。
Steve was in a particularly bad mood when he got back.
史蒂夫回来时心情特别不好。
When will he be back from his holiday?
他度假什么时候回来?
I mind the time when we were in Beijing together.
我想起我们一起在北京的时光。
(while要特别注意学习不同的用法)
在…期间,当…的时候;与…同时(连词)
虽然,尽管(连词)
(对比两件事物)…而,…然而(连词)
一段时间;一会儿(名词)
Flats in the downtown are expensive, while houses in the suburbs are cheap.
市中心的公寓很贵,而郊区的房子很便宜。
While I sympathize, I can"t really do very much to help.
虽然我很同情,但我实在帮不了什么忙。
Did you sneak into my room while I was asleep?
我睡着的时候你偷偷溜进我的房间了吗?
The band played the guitar while we danced.
我们跳舞时乐队弹起了吉他。
While I was waiting at the bus stop, three buses went by in the opposite direction.
当我在公共汽车站等车时,有三辆公共汽车朝相反的方向经过。
I want to rest a while.
我想休息一会儿。
After a while, we naturally started talking about the children.
过了一会儿,我们自然而然地开始谈论孩子们。
They chattered away happily for a while.
他们愉快地聊了一会儿。
Life moves pretty fast. If you don"t stop and look around once in a while, you could miss it.
人生如白驹过隙。如果你不偶尔停下来四处看看,你可能会错过许多。
while和when在表示“当…的时候”时,有些同学会觉得难以区分,但这又是常考的语言点,很是让人苦恼。
其实,要掌握它们的不同用法,先要了解动词的一个特征:短暂性动词还是延续性动词:
实用英语语法 第十三讲 实义动词
while从句的谓语必须是延续性的;when从句谓语短暂性和延续性都可以。
It was midnight when we left the party.
我们离开晚会时已是午夜。
It"s rude to speak when you"re eating.
吃饭的时候说话是不礼貌的。
Please keep the doors closed while the train is moving.
火车开动时请别开车门。
考试考它们的区别,只可能两种情况:
1)只能用when(从句谓语短暂性):
I"ll believe that when it happens.
当事情发生了我才会相信。
Turn off the lights when you leave.
离开时把灯关掉。
2)只用while(主句和从句都是进行时):
While I"m doing my homework, my mother is preparing dinner.
当我做作业时,我妈妈正在准备晚饭。
It was raining hard while I was driving toward the town.
谓语是延续性的,while和when可以互换,是没法考的。
while和whilst这两个词先有哪个?很多人会以为是whilst吧?
无其实while在古英语中就在使用了;而whilst是一个中古英语词汇。
作为连词,在英式英语里它们是可以互换的,但美国英语没有保留whilst。
He broke his hip whilst hunting.
他打猎时摔伤了臀部。
Breakfast is continental, whilst dinner is three courses from a set menu.
早餐是欧式的,晚餐是三道菜的套餐。
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