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1、LOGOPowerPoint Template状语从句状语从句(副词性从句副词性从句)定义：修饰主句中的谓语动词、形容词或者副词定义：修饰主句中的谓语动词、形容词或者副词 等的从句。等的从句。 分类：时间、地点、原因、条件、方式、让步、分类：时间、地点、原因、条件、方式、让步、 目的、结果、比较状语从句。目的、结果、比较状语从句。v引导词和词组：vwhen, while, as, 当的时候vafter, before,v until, till, 直到vsince, 自以来vonce, 一旦vevery time, each time.每次v whenever, no matter when
2、无论何时vby the time,截止到vas soon as, vno soonerthanvhardlywhenvscarcelywhenA before的用法It is /was (not)+时间+before+从句 用了多长时间没过多久,你就把它全忘了.It was not long before I forgot it all.她过了很久才回来.It was long before she came.他们要过四天才能回来。 It will be four days before they come back. After you think it over, please let m
3、e know what you decide.你仔细考虑过以后，告诉我你是怎样决定的。 After we had finished the work, we went home.完成工作之后，我们回家了 B 由by the time引导的时间状语从句。注意时态的变化：如果从句的谓语动词用一般过去时，主句的谓语动词用过去完成时；如果从句的谓语动词用一般现在时，主句的谓语动词用将来完成时。例如： 到你回来时，我已经写完这本书了。 By the time you came back, I had finished this book.你明天来这儿的时候，我将已经完成此工作了。 By the time
4、 you come here tomorrow, I will have finished this work. By then 截止到那时By the end of last year截止到去年今年年底C “一就”as soon as, immediately, directly, instantly, the moment, the instant, the minute, I will go there directly I have finished my breakfast. 吃完早饭，我立即到那里去。 The moment I heard the news, I hastened
5、to the spot.我一听到消息，马上赶到了出事地点。 As soon as I reach Canada, I will ring you up. 我一到加拿大，就给你来电话。 The fans cried as soon as they saw the movie star.追星族一看见这位影星就喊了起来.no soonerthanThey had no sooner saw the movie star than the fans cried.No sooner had they saw the movie star than the fans cried. HardlywhenTh
6、ey had hardly saw the movie star when the fans cried.Hardly had they saw the movie star when the fans cried.ScarcelywhenThey had scarcely saw the movie star when the fans cried.Scarcely had they saw the movie star when the fans cried.vD when, while, as v相同点: 都表主从句动作同时发生，常可换用。v区别: 1). when既可指时间点，也可指时
7、间段.v 可表示一个动作在进行时,另一个动作发生了. v 一般主句用过去时,从句用过去进行时. 或主 v 句用过去进行时,从句用一般过去时.v When the teacher came in, they were talking. v2). while强调时间段，从句动词必须是延续性动词, 从句一定用过去进行时, 强调从句动作”正在进行”.还可主句从句同时用过去进行时, 表两个动作同时发生. 而 when 没此用法.v My mother was cooking while my father was v watching TV. v While they were drawing, the
8、 teacher came in.vWhile 也可用作并列连词,表对比的转折,意为”而,却”v He likes singing, while his brother likes dancing.vAs表示“一边一边”，as引导的动作是延续性的动作，一般用于主句和从句动作同时发生；as也可以强调“一先一后。例如： vWe always sing as we walk.v我们总是边走边唱。（as表示“一边一边”） vAs we was going out, it began to snow.v当我们出门时，开始下雪了。（as强调句中两个动作紧接着先后发生，而不强调开始下雪的特定时间） vE 由
9、since引导的时间状语从句。 since引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词。一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时。但在It is 时间since从句的句型中，主句多用一般现在时。例如： vI have been in Beijing since you left. v自从你离开以来，我一直在北京了。 vWhere have you been since I last saw you? v自上次我和你见面以后，你到哪里去了？ vIt is four years since my sister lived in Beijing. v我妹妹不在北
10、京住有四年了。 vIt is five months since our boss was in Beijing.我们老板离开北京有五个月了。 F 由each time, every time和whenever引导的时间状语从句。Each time he came to Harbin, he would call on me. 他每次来哈尔滨，总是来看我。 You grow younger every time I see you. 每次遇到你，见你更年轻了。 Whenever I visited him, he was not at home. 无论何时我拜访他,他都不在家.No matte
11、r when I visited him, he was not at home. G till 和 until都表示“直到”，但句首多用until.1). 在肯定句中表示“直到为止”， 主句要用延 续性动词： I worked until he came back. 我工作到他回来为止。 2). 在否定句中,表示“直到才”,主句通常用短暂 性动词，这时till 和until可用before替换：I didnt go to bed until（till） my father came back.直到我父亲回来我才上床睡觉。I didnt work until he came back.直到他回
12、来我这才开始工作。 Not until 在句首时主句要倒装。H Once 一旦.就.Once you understand the rules of the game, youll enjoy it一旦你了解这个游戏的规则,你就会喜欢它.Once you begin ,you should go on.一旦你开了头,你就应该继续下去.2. 地点状语从句地点状语从句v引导词：where, wherever, everywhere等vWhere there is a will, there is a way.vPut the thing where you take.Multiple choice
13、s. 1. Doing your homework is a sure way to improve your test scores, and this is especially true _ it comes to classroom tests. A. when B. sinceC. beforeD. after 2. I had just started back for the house to change my clothes _ I heard voices. A. as B. whenC. afterD. while 3. I felt somewhat disappoin
14、ted and was about to leave _ something occurred which attracted my attention. A. unless B. until C. whenD. while4. Schliemann knew, _ he saw it, that he had found the actual place where the ruins of Troy were buried. A. instant B. the instant C. on the instant D. for an instant5. Few men pay full at
15、tention to their health conditions _ they are seriously ill. A. when B. if C. until D. before6. No sooner had Anne arrived there _ she fell ill. A. when B. whereC. thatD. than7. Scientists say it may be five or ten years _ it is possible to test this medicine on human patients. A. since B. beforeC.
16、after D. when 8. Scarcely had I jumped on the train _ it started off. A. than B. as C. while D. when9. She kept learning new words _ possible. A. whenever B. as C. before D. until10. Its more than two hours _ your train left. A. since B. as C. until D. while 1. Although he knew little about the larg
17、e amount of work done in the field, he succeeded where other more well-informed experimenters failed.尽管尽管对他人在他人在该领域所做的大量工作所知甚微，但他域所做的大量工作所知甚微，但他还是在其他博学的是在其他博学的试验者者们失失败之之处成功了。成功了。2. I have kept the portrait where I can see it every day, as it always reminds me of my university days in London. 我把画像放在我
18、每天看得我把画像放在我每天看得见的地方，它的地方，它总是是让我想起我我想起我在在伦敦敦读大学的日子。大学的日子。3. I did get to where I wasnt terrified.我确实到了不害怕的地步。4. Wherever it is possible, he tries to help.只要有可能，他总是设法帮忙。5. Stay where you are, or the snake will bite you.呆在原地不要动，否则蛇就会咬伤你。6. 有志者，事竟成。有志者，事竟成。 Where there is a will, there is a way. 7. 你愿意上
19、哪儿就上哪儿。You may go wherever you please. 8. 你去什么地方我也去什么地方。Ill go where you go. 9. 把药敷在痛处。Use the medicine where pain is felt.10. 今天的课从上次课程中断的地方开始。Todays class resumed where the last class left off.1. _ he comes tomorrow, I shall ask where he has been. 2. _ he was speaking, everybody listened carefully
20、. 3. I saw her just _ she was getting off the train. 4. Have a good look at that man _ you pass him. 5. It was already eight oclock _ we got there. 6. I was about to go out _ a visitor came. 7. Well go to the country at the beginning of June, _ the summer harvest will start. 8. He learned to speak G
21、erman _ he was in Berlin. 9. Henry is in charge of the office _ Mr. Smith is away. 10. I listen to the recorder _ I have time. When While / When as when/as when when when While while Whenever 11. He had learned Chinese _ he came to China.12. _ the work was done, we sat down to sum up experience. 13.
22、 I havent seen him _ he moved to the other side of the town. 14. I waited _ he came back. 15. It was not _ he took off his eyeglasses that I recognized him. 16. She likes everything to be in place _ she starts to work. 17. The thieves ran away _ they caught sight of the police. 18. They decided to go back home _ their money ran out. 19. We played outside till sunset, _ it began to rain. 11. before 12. After 13. since 14. till/until 15. until 16. before 17. as soon as 18. before 19. whenLOGO
