《时间状语从句》演示幻灯片

1、1 I study, I strive, I succeed! 2 时间状语从句 3 时间状语从句 P286 n一、什么是时间状语从句 n二 、时间状语从句的位置 n三 、时间状语从句连接词 4 找出下列句中的时间状语 n1. She was born in 1989. n2. I was watching TV at 8:00 last night. n3. I went out the classroom at once. n4. He has been a soldier since 1941. _ _ _ _ 5 找出下列句中的时间状语 n1.She was born when her

2、 brother was 2 years old. n2.I was watching TV while my mother was chatting on the phone at 8:00 last night. n3.I went out the classroom as soon as I saw her. n4.He has been a soldier since the Anti-Japanese War broke out. _ _ _ _ _ _ _ 6 什么是时间状语从句？ n在句子中充当时间状语的句子。 7 时间状语从句的位置 n她六岁会说英语。 nShe could s

3、peak English when she was 6. nWhen she was 6, she could speak English. n句首，句尾均可 n句尾，不用逗号 n句首，加逗号与主句隔开 8 时间状语从句的连接词 (1) when while as 9 时间状语从句的连接词 (2) before every time 11 (1.1)when 当的时候 nWhen I was young, I went to town myself. n当我年轻时，我独自进过城。 nThe days get longer when spring comes. n春天到来时，白天变得更长了。 n

4、When I was 6 yeas old, I started to learn English. n 当我6岁时，我开始学英语。 nWhen he receives the letter, hell tell us. n他收到信后，会告诉我们的。 12 when 忽然 nWe were watching TV, when suddenly the light went out. n我们正在看电视，忽然灯灭了。 nHe was leaving home, when suddenly the telephone rang. n他正要出门，忽然电话响了。 nwhen=and then; at t

5、hat moment 正在那个时候 n常与suddenly连用，表示“正在，即将”之意 13 (1.2)while 当的时候 He visited a lot of places while he was traveling. n他在旅行途中参观了许多地方。 nwhile 相当于 during(介词) n主句，从句动作同时发生 nwhile表示较长的时间，引导的从句应用延 续动词。 14 while 然而 我在做功课，弟弟却在玩游戏。 I was doing my homework while my brother was playing games. 我已经工作五年了，而你还在读书。 I h

6、ave worked for five years while you are still at school. 15 True or false? nIt was raining hard while I got there. nFalse nwhile表示较长的时间，引导的从句应用延 续性动词。 nget 是点动词，不能用while引导。 nIt was raining hard when I got there. 16 (1.3)as 随着随着 / / 在在同时同时 As the sun rose, the fog disappeared. 太阳一出来雾就消散。 They came in

7、to the garden as the music stopped. 音乐声一停，他们就走进花园。 17 as 一边一边 nHe smiled as he passed. n他路过的时候笑了一下。 nHe saw that she was smiling as she was reading. n他看到她一边看着书一边笑。 nHelen was listening to the story as she was washing the clothes. n海伦一边洗衣服一边听故事。 18 when/ while/ as 在某事发生的过程中另一事发生 nJust when/while/as h

8、e was speaking there was a loud explosion. n正当他在说话的时候，一声巨响。 nWhen/while/as I was cooking, the telephone rang. n我正在做饭的时候，电话响了。 nI was bathing when/as he came. n他来的时候我正在洗澡。 19 Sum up: when, while or as? nwhen，while，as显然都可以引导时间状语 从句，但用法区别非常大。 一、 n when+延续动词或瞬间动词； n while只能和延续性动词连用；表一段时间 （长情景） n as +延续动

9、词或瞬间动词（随着, 边边) （短情景） 20 when, while or as? n Why do you want a new job when youve got such a good one already？ n（get为短暂性动词） n你已经找到如此好的工作，为何还想再找新的？ nSorry，I was out when you called me n（call为短暂性动词） n对不起，你打电话时我刚好外出了。 nStrike while the iron is hot n 趁热打铁。 n（is为延续性动词，表示一种持续的状态） n The students took notes

10、 as they listened n（listen为延续性动词） n学生们边听课边做笔记。 21 when, while or as？ n二、 nwhen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； nwhile和as从句的谓语动作必须是和主句谓语动作 同时发生。 n1. 1. 动作一先一后发生，用动作一先一后发生，用when nWhen he had finished his homework，he took a short rest n当他完成作业后，他休息了一会儿。 nWhen I got to the airport，the guests had left n当我赶到飞机

11、场时，客人们已经离开了。 after before 22 when, while or as？ n2从句动作和主句动作同时发生，且从句动作为从句动作和主句动作同时发生，且从句动作为 延续动词时，延续动词时，when，while，as都可使用。都可使用。 nWhen While As we were dancing，a stranger came in n当我们跳舞时，一位陌生人走了进来。 nWhen While As she was making a phone call，I was writing a letter n当她在打电话时，我正在写信。 23 when, while or as?

12、n3当主句、从句动作同时进行，表示“随 着”；“一边，一边”之意时 ，只 能用 as。 n As the time went on，the weather got worse. n随着时间的推移，天气变得越来越糟糕。 nThe little girls sang as they went n小姑娘们一边走，一边唱。 nThe sad mother sat on the roadside， shouting as she was crying n伤心的妈妈坐在路边，边哭边叫。 24 when, while or as? n4在将来时从句中，常用whenwhen，且从句须用一 般时代替将来时。 n

13、I will lend you the book when he returns it n他把书还我，我就借给你。 nWhen the manager comes here for a visit next week，Ill talk with him about this n下周，经理来这参观时，我会和他谈谈此事。 25 Practice n用 when, while 或 as 填空。 n1. She came up _ I was cooking. n2. The runners started _the gun went off. n3. It was raining _ I arriv

14、ed. n4. _we were at school, we went to the library every day. n5. please dont talk so loud _others are working. n6. He fell asleep _ he was reading. n7. Strike _ the iron is hot. when/while/as when/as when When/While/As when/while/as when/while/as while 26 (2.1) before; after nDo it now before you f

15、orget it. n趁你还没忘，现在就去做。 nAfter he had left school, he joined the army. n离开学校之后，他参了军。 nI must get to the shop before its closed. n我必须在商店关门之前赶到那里。 nWhat are you going to do after you finish college? n学院毕业之后你打算干什么？ 27 (2.2) since nI have worked here since I graduated from the university thirty years ag

16、o. n自从三十年前大学毕业以来，我就在这儿工作。 nHe has been ill since he went to England last month. n自从上个月到英格兰后，他就病了。 nsince表示自过去到目前为止的一段时间。 n主句一般用现在完成时，从句用一般过去时。 28 True or false? nHow long have you become a PLA man? nHow long have you been a PLA man? nI have come here since last July. n I have been here since last Ju

17、ly. nIt has been over one year since I came here last July. nsince 从句或名词， 表示一段时间，所 以主句中现在完成时的动词要从延续动词。 _ _ 29 It is since nIts many years since World War was over. n自从二次大战（结束）以来，已经很多年了。 nHow long is it since you were a PLA man? =How long have you been a PLA man? n你参加人民解放军多久了？ It is +一段时间一段时间+since+句

18、子句子 n自从以来，有多长时间了。 30 (2.3) until/till; notuntil nWe walked and walked until/till it was dark. n我们一直走到天黑。 nWe didnt begin to walk until it was dark. n直到天黑了，我们才开始走。 nwalk 延续动词 用until/till表示直到。 nbegin 瞬间动词 用notuntil表示直到。 31 until/till; notuntil nLi Ming will wait until/till his father comes back. n李明要一

19、直等到他父亲回来。 nLi Ming wont leave here until his father comes back. n李明要等到他爸爸回来时才离开这儿 nwait延续动词 用until/till nleave瞬间动词 用notuntil 32 Sum up nIll wait here until / till he comes back. n我将在这里等着，直到他回来。 nYou cant go home until you finish your work. n直到你完成你的工作，你才能回家。 nHe didnt get married until he found his t

20、rue love. n他直到找到真爱才结婚。 nHe didnt leave his office until midnight. n他直到午夜才离开办公室。 33 (2.4) as soon as; the moment 一就 nAs soon as I have finished it, Ill give you a call. nIll give you a call as soon as I have finished it。 nIll give you a call the moment Ive finished it. nThe moment Ive finished it, Ill give you a call. n我一完成就给你电话。 34 (3.1) hardlywhen 一就 nWe had hardly got into the country when it