when和while;过去进行时
英语过去进行时的用法
过去进行时的用法一、过去进行时的时间状语1. when 和while引导的状语从句中,强调某个动作正在进行的过程中时要用进行时态,while 表示一段时间,因此它所引导的状语从句中,谓语动词常用进行时态,如:When/While we were having supper, the light went out. 我们正在吃饭时灯熄灭了。
2. when用作并列连词时,主句常用进行时态,从句则用一般过去时,表示主句动作发生的过程中,另一个意想不到的动作发生了。
如:I was walking in the street when someone called me. 我正在街上走时突然有人喊我。
二、下面几种情况不用一般过去时而要用过去进行时:1. 表示过去某一阶段暂时性的习惯动作时。
如:Tom was getting up at six o’clock every day that week. 汤姆那一周里每天都是六点钟起床。
2. 与always连用表示赞美,厌烦等感情色彩时。
如:John was always coming to school late. 约翰上学总是迟到。
Lei Feng was always doing good deeds for the people. 雷锋总是为人民做好事。
3. 用来描写故事发生的情景时。
如:It was a dark night. The wind was blowing hard and the rain was falling heavily. A PLA man suddenly appeared on the river bank. He wanted to cross the river.那是一个漆黑的夜晚,风刮得很厉害,雨下得很大,一个解放军战士突然出现在河岸上,他想过河去。
4. when作并列连词,表示“(这时)突然”之意时,第一个并列分句用过去进行时,when引导的并列分句用一般过去时。
while和when的用法时态
while和when的用法时态while 和 when 用法大致可以分为四种时态:一般现在时、一般过去时、一般将来时、过去将来时。
一、一般现在时while 是连词,用于表示在一段时间内反复发生的动作或状态。
一般现在时中 while 后接现在进行时形式的动词,表示某一动作正在进行:She reads a magazine while she is waiting for the bus.她等公交车时看杂志。
When 也是连词,用于表示某一动作发生在另一动作之前。
一般现在时中 when 后接现在时形式的动词,表示发生在另一动作之前的动作:I will call you when I get to the office.我一到办公室就给你打电话。
二、一般过去时while 后接过去进行时,可以表示在某一特定的过去时间里反复发生的动作:She was reading a magazine while she was waiting for the bus.她等公交车时看杂志。
When 后接过去时,可以表示发生在另一动作之前的动作:I called you when I got to the office.我一到办公室就给你打电话了。
三、一般将来时while 后接将来进行时,可以表示在某一特定的将来时间里反复发生的动作:She will be reading a magazine while she is waiting for the bus.她等公交车时会看杂志。
When 后接将来时,表示发生在另一动作之前的动作:I will call you when I get to the office.我一到办公室就给你打电话。
四、过去将来时while 后接过去将来时,可以表示在某一特定过去将来时间里反复发生的动作:She would be reading a magazine while she was waiting for the bus.她等公交车时会看杂志。
when 和while的用法区别
when 和while的用法区别①when是at or during the time that, 既指时间点,也可指一段时间;while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while从句中的动词必须是延续性动词。
②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。
③由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导,如:a. When the teacher came in, we were talking.当此句改变主从句的位置时,则为:While we were talking, the teacher came in.b. They were singing while we were dancing.④when和while 还可作并列连词。
when表示“在那时”;while表示“而,却”,表对照关系。
如:a. The children were running to move the bag of rice when they heard the sound of a motor bike.孩子们正要跑过去搬开那袋米,这时他们听到了摩托车的声音。
b. He is strong while his brother is weak.他长得很结实,而他弟弟却很瘦弱。
when,while,as引导时间状语从句的区别when,while,as显然都可以引导时间状语从句,但用法区别非常大。
一、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。
①Why do you want a new job when youve got such a good one already?(get 为短暂性动词)你已经找到如此好的工作,为何还想再找新的?②Sorry,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。
(完整版)过去进行时when和while
过去进行时的讲与练一、含义:(1)过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作,常和表过去的时间状语连用。
(2) 过去进行时表示感情色彩与现在进行时相似,过去进行时也可表示满意、称赞、惊讶、厌恶等感情色彩,也通常与always,forever等副词连用。
e.g:They were always quarrelling. 他们老是吵架。
二、过去进行时的构成和用法:肯定形式:主语+was/were+doing否定形式:主语+was not (wasn't)/were not (weren't)+doing疑问形式:Was/Were+主语+doing。
常与之连用的时间状语有,at that time/moment, (at) this time yesterday (last,when 和while引导的时night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)间状语从句。
三、when/while引导的时间状语从句①由when/while 引导的时间状语从句。
常用句型:一般过去时的句子);a. 主句(主语+ was/were + doing … when +表示主句动作发生的过程中,另一个意想不到的动作发生了。
We were talking when the teacher came in.=While we were talking, the teacher came in.);主语+ was/were + doing … b. 主句(主语+ was/were + doing … while +主句与从句的动作都是延续性动词或同时发生的,两句都用过去进行时的时候,多用while引导★★★注意:when和while的区别:都意为“当……时候”,when引导的句子谓语动词用短暂性动词或延续性动词都行;但while引导的句子谓语动词只能用延续性动词,不能用短暂性动词。
8B过去进行时when,as和while的区别
指紧接着发生的两个短动作,主从句都用一 般过去时 1)He took out his English books as soon as he sat down 2) We ate a lot as soon as we got home. 3) As soon as she came out of the house, she wore a big hat. 小结:看as soon as 的时态,要么两边都是 过去时,要么就是主将从现
• ③由when引导的时间状语从句,主句用过去进行时,从 句应用一般过去时;如果从句和主句的动作同时发生,两 句都用过去进行时的时候,多用while引导,如: • a. When the teacher came in, we were talking. • 当此句改变主从句的位置时,则为: • While we were talking, the teacher came in. • b. They were singing while we were dancing. • ④when和while 还可作并列连词。when表示“在那时”; while表示“而,却”,表对照关系。如: • a. The children were running to move the bag of rice when they heard the sound of a motor bike. • 孩子们正要跑过去搬开那袋米,这时他们听到了摩托车的 声音。 • b. He is strong while his brother is weak. • 他长得很结实,而他弟弟却很瘦弱。
• 二、when从句的谓语动词可以在主句谓语动作之前、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.从句动作在主句动作前发生,只用 when。 • ①When he had finished his homework,he took a short rest.(finished先发生)当他完成作业后,他休息了一会 儿。 • ②When 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。 • 2.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。 • ①When /While /As we were dancing,a stranger came in.(dance为延续性动词)当我们跳舞时,一位陌 生人走了进来。 • ②When /While /As she was making a phonecall,I was writing a letter.(make为延续性动词)当她在打电 话时,我正在写信。
when-和while的用法区别
意思是,when 既可以跟终止性动词,又可以跟延续性动词.而while只能跟延续性动词(一般是进行时)
Eg:Iwas doing my homework when Tom called me。call 是短暂性的动作,所以不能用while
I was washing the dishes while/when Lily was cooking.cook是延续性的,所以when和while都行。这就是为什么,when的胃口大,while 的胃口小
when和while的区别
①when可以和时间点,一段时间连用;
While和一段时间连用
when可以和终止性动词,或延续性动词连用
while只能和延续性动词连用
终止性动词:come ,go ,close ,open ,die ,stop,see,hear,finish,leave,borrow,lend,move fall,start,sit,call
②when主从句的动作可以是同时或先后发生;
while则强调主从句两个动作同时发生。
③由when引导的时间状语从句,主句用过去进行时,从句用一般过去时;while的从句和主句的动作同时发生,两句都用过去进行时
a.Whenthe teachercamein, wewere talking dancing。
④when和while 还可作并列连词.when表示“正在那时”;
while表示“而,却”,表对照或转折。Eg:The childrenwere runningto move the bag of ricewhentheyheardthe sound of a motor bike.
Eg:He is strongwhilehis brother is weak。
when 和while的用法区别
when 和while的用法区别①when是at or during the time that, 既指时间点,也可指一段时间;while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while从句中的动词必须是延续性动词。
②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。
③由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导,如:a. When the teacher came in, we were talking.当此句改变主从句的位置时,则为:While we were talking, the teacher came in.b. They were singing while we were dancing.④when和while 还可作并列连词。
when表示“在那时”;while表示“而,却”,表对照关系。
如:a. The children were running to move the bag of rice when they heard the sound of a motor bike.孩子们正要跑过去搬开那袋米,这时他们听到了摩托车的声音。
b. He is strong while his brother is weak.他长得很结实,而他弟弟却很瘦弱。
具体你可以参考这一段。
when,while,as引导时间状语从句的区别when,while,as显然都可以引导时间状语从句,但用法区别非常大。
一、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。
①Why do you want a new job when youve got such a good one already?(get 为短暂性动词)你已经找到如此好的工作,为何还想再找新的?②Sorry,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。
过去进行时中“when和while讲解与练习
过去进行时中“when和while讲解与练习过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作,常和表过去的时间状语连用,如:1. I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
2. They were waiting for you yesterday.他们昨天一直在等你。
3. He was cooking in the kitchen at 12 o'clock yesterday.昨天12点,他正在厨房烧饭。
过去进行时的构成:肯定形式:主语+was/were+ V-ing否定形式:主语+was not (wasn't)/were not (weren't)+V-ing疑问形式:Was/Were+主语+V-ing。
基本用法:1. 过去进行时表示过去某一段时间或某一时刻正在进行的动作。
常与之连用的时间状语有,at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterda y (last night / Sunday…),when sb. did sth.等时间状语从句,如:1)What were you doing at 7p.m. yesterday?昨天晚上七点你在干什么?2)I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽是在三年前,当时她在一家无线电商店工作。
3)I was cooking when she knocked at the door.她敲门时我正在做饭。
2.when后通常用表示暂短性动词,while后通常用表示持续性动词,而while所引导的状语从句中,谓语动词常用进行时态,如:When the car exploded I was walking past it. = While I was walking past the car it exploded.3.when用作并列连词时,主句常用进行时态,从句则用一般过去时,表示主句动作发生的过程中,另一个意想不到的动作发生了。
when与while引导时间状语从句的区别
My key dropped on the ground when I was
walking in the park. 我在公园散步时, 钥匙掉在了地上。
while
while引导的时间状语从句常指一个时间 段,从句中的动词必须为延续性动词。 while有时还可表示主句的动作与从句 的动作同时发生。
4. Now he __i_s_r_e_a_d_in_g__ (read) and __w__r_it_in__g__.
B. Translate these sentences into English.
1. 上课铃响时,你在干什么? What __w_e_r_e___ you _d_o_i_n_g_when the class bell rang?
1. What _w__er_e__ (be) you _d_o_i_n_g_ (do) when he arrived?
2. Jim__w_a_s_s_l_e_e_p_in_g___ (sleep) when I came in.
3. They _w_e_r_e_w__a_tc_h_i_n_g_ (watch) TV at 8:00 yesterday evening.
when and while
Both of them mean ”当…… 的时候”.
Are they the same? No !!!
when
when引导的时间状语从句可以表示一个时间 点,也可以表示一个时间段。从句中可以用
短暂性动词,也可以用延续性动词。从句中 的动作既可与主句的动作同时发生, 又可在主句的动作之前或之后发生。
when和while的区别
when和while的区别(一)①when是at or during the time that, 既指时间点,也可指一段时间;while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while从句中的动词必须是延续性动词。
②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。
②由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导,如: a. When the teacher came in, we were talking. 当此句改变主从句的位置时,则为:While we were talking, the teacher came in.b. They were singing while we were dancing.④when和while 还可作并列连词。
when表示“在那时”;while表示“而,却”,表对照关系。
如a.The children were running to move the bag of rice when they heard the sound of a motor bike. 孩子们正要跑过去搬开那袋米,这时他们听到了摩托车的声音。
b. He is strong while his brother is weak.他长得很结实,而他弟弟却很瘦弱。
具体你可以参考这一段。
详细区别:一。
引导时间状语从句时,while连接的是时间段,而when连接的多是时间点例如What does your father do while your mother is cooking?What does your mother do when you come back?二,while可以连接两个并列的句子,而when不可以例如I was trying my best to finish my work while my sister was whtching TV三,when是特殊疑问词,对时间进行提问,while不是。
when和while区别以及过去进行时(三)
(三)when, while区别以及过去进行时语法:1.连词when 和while的用法。
(1)若主句表示的是一个短暂性动作,从句表示的是一个持续性动作,两者都可以用。
He fell asleep when / while he was reading.(2)若主、从句表示两个同时进行的持续性动作,且强调主句表示的动作延续到从句所指的整个时间,通常要用while。
Don’t talk while you’re eating.(3)若从句是一个短暂性动作,主句是一个持续性动作,则用when而不用while。
It was raining hard when we arrived.(4)when 可作并列连词,表示“这时(突然)”;while也可以用作并列连词,表示“然而;却(对比)”。
We were about to start when it began to rain. 我们正要出发,这时天开始下雨了。
He likes coffee, while she likes tea. 他喜欢咖啡,而她却喜欢茶。
2.过去进行时。
(1)定义:表示过去某个具体时刻正在进行的事情或动作。
(2)结构: was / were + doing (现在分词)(3)用法①:表示过去某段时间内持续进行的动作或事情。
We were watching TV from seven to nine last night.②表示在过去某个时间点发生的事情。
What was she doing at nine o’clock yesterday?专项练习:一、选择题。
()1.Tom rushed into the house his mother was cooking.A. asB. beforeC. whileD. after()2. -----Mom, shall we have supper now?-----Oh, we won’t have supper your dad comes back.A. untilB. sinceC. whileD. after()3.-----Tom, you look tired this morning. What’s wrong?-----I was so busy that I didn’t go to bed 12 o’clock last night.A. untilB. whenC. thoughD. unless()4. Jack likes reading a newspaper he is having breakfast.A. andB. whileC. because()5. -----Ring me up you come to my house, will you?-----Sure, I will.A. thoughB. whileC. beforeD. until()6. Eddie was sleeping Millie was reading a magazine.A. untilB. whileC. beforeD. after()7. the 632-meter Shanghai Tower is finished, it will be the second tallest building in the world.A. WhenB. SinceC. BeforeD. Unless()8.Mary a dress when she cut her finger.A. madeB. is makingC. was makingD. makes ()9. When Jim’s mother came in, he his homework.A. is doingB. has doneC. was doing()10. -----What did you do yesterday evening, Gina?-----I Titanic 3D in the City Cinema.A. watchB. watchedC. am watchingD. will watch ()11. Paul and I tennis yesterday. He did much better than I.A. playB. will playC. playedD. are playing()12. -----I call you at 6 o’clock yesterday evening, but nobody answered.-----I’m sorry. I my friend downloaded the movie Kung Fu Panda 2 when the telephone rang.A. would helpB. helpedC. was helping()13. Yesterday evening, I along the street when I suddenly met my math teacher.A. walkB. walkedC. was walkingD. am walking()14. The girl with two cats in the yard when the earthquake happened.A. was playingB. is playingC. are playingD. were playing()15. -----What did Mr. Smith do before he came to China?-----He in a car factory.A. workedB. worksC. is workingD. will work综合练习:一、完形填空。
8B过去进行时when,as和while的区别
பைடு நூலகம்
2) We could come to see the film yesterday
while Tom lost the tickets.
• 如果表示从句的动作在主句的动作“之前”或“之后”发 生时,多用when(=after), 不用as或 while。此外, when还含有“at that moment”的意思(= and then),引起的句子不能放在句首,也不能用as, while 来替换。例如:
• He was about to leave when the telephone rang. 他正要离开,忽然电话铃响了。
• As soon as he gets home, he will notice you.
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指紧接着发生的两个短动作,主从句都用一 般过去时
1)He took out his English books as soon as he sat down
2) We ate a lot as soon as we got home. 3) As soon as she came out of the house,
3) The light went off when they were talking.
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while连接的句子,后面必须用进行时(现在/ 过去进行时)
1) A car hit her while she was thinking about a question.
过去进行时when和while
过去进行时的讲与练一、含义:(1) 过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作,常和表过去的时间状语连用。
(2) 过去进行时表示感情色彩与现在进行时相似,过去进行时也可表示满意、称赞、惊讶、厌恶等感情色彩,也通常与always , forever 等副词连用。
e.g : They were always quarrelli ng. 他们老是吵架。
二、过去进行时的构成和用法:肯定形式:主语 +was/were+do ing否定形式:主语 +was no t (was n't)/were no t (were n't)+do ing疑问形式:Was/Were+主语 +doing。
常与之连用的时间状语有,at that time/mome nt, (at) this time yesterday (lastni ght/S un day/week …),at+ 点钟 +yesterday (last ni ght / Sun day …), whe n 禾口while引导的时间状语从句。
三、 when/while引导的时间状语从句①由when/while 引导的时间状语从句。
常用句型:a. 主句(主语 + was/were + doing …when + 一般过去时的句子);表示主句动作发生的过程中,另一个意想不到的动作发生了。
We were talk ing whe n the teacher came in.=While we were talk ing, the teacher came in.b. 主句(主语 + was/were + doing …while + 主语 + was/were + doing …);主句与从句的动作都是延续性动词或同时发生的,两句都用过去进行时的时候,多用 while 引导★★★注意:when和while的区别:都意为当......... 时候” when引导的句子谓语动词用短暂性动词或延续性动词都行;但while引导的句子谓语动词只能用延续性动词,不能用短暂性动词。
while与when的用法
while与when的用法when和while的区别:①when是at or during the time that, 既指时间点,也可指一段时间; while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while 从句中的动词必须是延续性动词。
②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。
③由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导④when和while 还可作并列连词。
when表示“在那时”;while表示“而,却”,表对照关系。
when,while,as引导时间状语从句的区别when,while,as显然都可以引导时间状语从句,但用法区别非常大。
一、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。
二、when从句的谓语动词可以在主句谓语动作之前、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.从句动作在主句动作前发生,只用when。
2.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。
3.当主句、从句动作同时进行,从句动作的时间概念淡化,而主要表示主句动作发生的背景或条件时,只能用as。
这时,as常表示“随着……”;“一边……,一边……”之意。
4.在将来时从句中,常用when,且从句须用一般时代替将来时。
三、when用于表示“一……就……”的句型中(指过去的事情)。
sb.had hardly(=scarcely) done sth.when...=Hardly / Scarcely had sb.done sth.when...。
when 和while的用法区别
when 和while的用法区别①when是at or during the time that, 既指时间点,也可指一段时间;while是during the time that,只指一段时间,因此when引导的时间状语从句中的动词可以是终止性动词,也可以是延续性动词,而while从句中的动词必须是延续性动词。
②when 说明从句的动作和主句的动作可以是同时,也可以是先后发生;while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。
③由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导,如:a. When the teacher came in, we were talking.当此句改变主从句的位置时,则为:While we were talking, the teacher came in.b. They were singing while we were dancing.④when和while 还可作并列连词。
when表示“在那时”;while表示“而,却”,表对照关系。
如:a. The children were running to move the bag of rice when they heard the sound of a motor bike.孩子们正要跑过去搬开那袋米,这时他们听到了摩托车的声音。
b. He is strong while his brother is weak.他长得很结实,而他弟弟却很瘦弱。
when,while,as引导时间状语从句的区别when,while,as显然都可以引导时间状语从句,但用法区别非常大。
一、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。
①Why do you want a new job when youve got such a good one already?(get 为短暂性动词)你已经找到如此好的工作,为何还想再找新的?②Sorry,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。
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中小学个性化课外辅导专家 c.表示心理活动的动词,如 forget,mean,realize,remember,understand 等; d.表示所属关系的动词(词组),如:own,belong to(属于)等。 Eg:我知道答案。
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语法二:when,while 与 as 的区别 (1) 若主句表示的是一个短暂性动作,从句表示的是一个持续性动作,三者都可用。 Eg:他看书时睡着了。
2.I ______ alone the road when I saw Peter.So we stopped and had a chat. A.walked B.was walking C.would walk D.had walked
3.—I saw Mr Smith in the office at ten yesterday evening. --That is impossible.He _______ an English party with us then. A.has B.had C.was having D.has had
课堂练习 课后作业 本节课教学计划完成情况:照常完成□ 提前完成□ 延后完成□ ____________________________ 学生的接受程度: 5 4 3 2 1 ______________________________ 学生的课堂表现:很积极□ 比较积极□ 一般积极□ 课后记录 学生上次作业完成情况: 优□ 不积极□ ___________________________
(7) 若主从句所表示的动作不是同时发生,而是有先后顺序时,一般要用 when Eg:他回来时,我就回家去。
(8)when 可用作并列连词,表示“这时(突然)”;while 也可以用作并列连词,表示“而”“却”
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中小学个性化课外辅导专家 (表示对比);as 则没有类似用法。 Eg:我们正要出发,这时天开始下雨了。
9.I was very angry with John;he just _______ when I spoke to him. A.isn’t listening B.hasn’t listened C.didn’t listen D.wasn’t listening
10.The plane will take off ______ three hours.I must get to the airport right now. A.in B.for C.on D.at
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中小学个性化课外辅导专家
普世教育个性化辅导教案
教师 学科 施燕燕 英语 教学内容 教学目标 个性化学习问题 解决 二、知识点及练习 学生姓名 年级 一、语法 8A 上课日期 授课时段
语法一:过去进行时 1. 定义:过去进行时是表示过去某个时间点或某个时间段正在进行的事情或动作。 2. 结构:was/were+doing(现在分词) 3. 用法: (1) 过去进行时表示过去某段时间内持续进行的动作或者事情。常用的时间状语有 this morning,the whole morning,all day yesterday,from nine to ten last evening,when,while 等。 Eg:昨天晚上七点到九点的时候我们正在看电视。普Fra bibliotek教育- 3 -
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中小学个性化课外辅导专家
12.The boy cried ______ (terrible) because his left leg was hurt badly. 13.A rainstorm h 14.In which d our city last night.Luckily,no one was hurt. are you going,north or south?
3.When the earthquake started,people ran in all d 4.John ______(work) all day yesterday. 5.He ______ (walk) home when the rain _______ (begin).
6.—What ______ you ______ (do) at ten o’clock yesterday? --I ______ (study) in class. 7.What _______ they ______ (do) yesterday evening? 8.It was ten o’clock .Amy _______ (have) the Enlish lesson. 9.I saw the traffic accident _______ (happen) yesterday. 10.I _______ (do)the cleaning the whole afterday last Saturday. 11.The black clouds _______ (遮住) the sky yesterday afternoon.
4.I ______ the charity show when the telephone rang. A.watch B.watched C.am watching D.was watching
5.The boy,with his parents,_______ be here for Thanksgiving Day soon. A.is going to B.are going to C.be going to D.will be going to
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他喜欢咖啡,而她却喜欢茶。
(9) as 和 when 后均可直接跟一个名词,构成省略句,但 while 一般不这样用。 Eg:孩子时他就住在日本。
(10) when 和 while 后可接现在分词、介词短语、形容词等构成省略句,但 as 一般不这样用。 Eg:他看书时睡着了。
课后练习
一、 根据句意完成句子。 1.Many people were killed in the a 2.Tom fell off the tree and h . his legs. .
良□ 中□ 差□ 存在问题 _____________________________
班主任配合:_______________________________________________________________ 家长配合: 备注 学生签字 教师签字 教学主任审批
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15.You kept me waiting at the bus stop for _______ (near) an hour. 16. Is the fire still _______ (燃烧)? 17.As soon as he came into the office ,he ________ (shake) hands with every one of us. 二、单项选择 1.—Did you see Mr Black just now? --Yes.He _______ his car when I met him. A.parked B.was parking C.parks D.will park
(2) 若主、从句表示两个同时进行的持续性动作,且强调主句表示的动作延续到从句所指的整个时 间,通常用 while。 Eg:吃饭时不要说话。
但是,若主从句表示的两个同时进行的动作含有“一边....一边.....”的意思时,通常用 as。 Eg:她边走边唱。
(3) 若主从句表示的是两个同时(或几乎同时)发生的短暂性动作,用 as/when. Eg:就在你要说的时候,我也想到了。
他们离开车站的时候天正在下雨。
(2) 过去进行时可以表示在过去某个时间点发生的事情。 时间点可以用介词短语、 短语或从句来表示。 Eg:昨天晚上九点她在做什么?
当我看见他的时候,他正在穿马路。
(3)在复合句中,如果主要动作和背景动作都是延续的或同时发生的,那么主从句的动词都可用过去 进行时。 Eg:他边等车边看报。
6.—How did the accident happen? --The driver ______ an e-book on his mobile phone while driving! A.was reading B.read C.reads D.is reading
7.It’s reported that the natural disaster killed _______ people. A.thirty thousands B.thirty thousand C.thousand of D.thirty eight thousand
他洗车时我在做饭。
(4)静态动词只用于一般过去时,不用于过去进行时中。常见的有: a.表示感觉的动词,如 feel,hear,know,see,smell,taste 等; b.表示状态、感情的动词,如 be,have,dislike,hate,love,like,want,wish 等
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8.A true friend can see the pain in your eyes ______ everyone else believes the smile on your face.
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A.while
中小学个性化课外辅导专家 C.before D.until
B.because
(4) 若从句是一个短暂性动作,主句是一个延续性动作,可用 as/when 但不用 while. Eg:我们到达时正下着大雨。
(5) 若要表示两个正在发生变化的情况,相当于汉语的“随着”,一般用 as. Eg:随着时间的推移,情况越来越好。
(6) 表示“每当....的时候”(暗示一种规律性),一般要用 when. Eg:下雪时天冷。