时间状语从句01811实用教案

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1、 1.Adverbial Clauses of Time:（时间状语(zhungy)从句）Different Kinds of Adverbial Clauses: 2.Adverbial Clauses of Reason(原因(yunyn)状语从句） 3.Adverbial Clauses of Conditions(条件(tiojin)状语从句） 4.Adverbial Clauses of Place (地点状语从句） 5.Adverbial Clauses of Purpose (目的状语从句） 6.Adverbial Clauses of Result（结果状语从句） 7.Adve

2、rbial Clauses of Comparison（比较） 8.Adverbial Clauses of Concession(让步） 9.Adverb Clauses of Manner(方式状语从句 )第1页/共29页第一页，共29页。I. 时间(shjin)状语从句: when, while, as, after, before, since, until/till, as soon as, hardly/scarcelywhen, no soonerthan, every time, each time, the moment, the minute, the second, by

3、 the time , immediately .第2页/共29页第二页，共29页。一、 when/while/as When + (1)延续性动词 e.g. When I was young, I liked dancing. (2)瞬间性动词(不能用 while） e.g. It was snowing when we got to the airport (3)表示“这时” “正在这时候” e.g. I was walking on the street when suddenly someone patted me on the shoulder. (4) 主从(zhcng)句动作先后

4、发生(不能用 while） e.g. When I got to the cinema, the film had already begun. 第3页/共29页第三页，共29页。 While + (1) 延续性动词 e.g. While I slept, a thief broke in. (2) 表示两种情况对比(dub)，“然而” “而” e.g. They were surprised that a child should work out the problem while they themselves couldnt. (3) 表示“趁着时候”(强调主从句动作同时发生). e.

5、g. Strike while the iron is hot.第4页/共29页第四页，共29页。 As 侧重主从句动作同时发生，常译为 “一边一边.” . ) “随着” e.g.As time goes by, we have gained more and more knowledge. 注意 若主句谓语是短暂性动作，从句用延续性动词的进行时态(sh ti)表示在一段时间内正在进行的动作时，三者可以互换！ When/While/As we were having an English class, a stranger broke in.第5页/共29页第五页，共29页。Practice

6、_l was walking down the street，I saw some policemen _they heard the news，they were surprised They shouted slogans _they passed the square.When/While/AsWhenas第6页/共29页第六页，共29页。二、 before常见句型: It will be + 一段时间 + before. It was + 一段时间 + before. It wont be long before It wasnt long before肯定句意为 “多长时间后才” 否

7、定句意为“用不了(blio)多长时间就”It will be a long time before we finish this dictionary. 我们需要很长的时间才把这部词典编译完。It was not long before the thief was caught. 小偷不久就被抓住了。第7页/共29页第七页，共29页。beforeIt will be half a year before I come back.It wont be half a year before we meet again.We sailed four days and nights before we

8、 saw the land.We hadnt run a mile before he felt tired. 肯定句 “ 才” 否定句 “就”it will be +一段时间 before.多久(du ji)之后才.it wont be +一段时间 before.不久(bji)就.第8页/共29页第八页，共29页。1. Scientists say it may be five or six years _ it is possibleto test this medicine on human patients. 2. He was told that it would be at lea

9、st three months _ hecould recover and return to work.3.Someone called me in the middle of the night, but they hung up _ I could answer the phone.before before before第9页/共29页第九页，共29页。三、after 例： 1、He came to see me after I arrived. 2、Immediately after he was hurt, he was taken to the hospital.第10页/共29

10、页第十页，共29页。 注：before和after引导的状语从句，主从句发生的动作先后顺序很明确，因此after从句中的谓语动词常常使用一般过去(guq)时来代替过去(guq)完成时。 After he (had) finished his homework, Tom began to play computer games.第11页/共29页第十一页，共29页。三 Since 注意 since 引导(yndo)的时间状语从句，主句常用完成时，从句常用一般过去时。 He has written to me frequently since he was ill.句型 It is /has be

11、en + 一段时间+ since ，如果从句是延续性动词，,用一般过去时和现在完成时不同。 It is/has been two years since he was in the army. 他离开军队两年了。 It is/has been two years since he has been in the army. 他当兵两年了。第12页/共29页第十二页，共29页。1.-How long _ the shop_ open? -Since 1992. (=Since 15 years ago)2.-Since when _the country _ open to internatio

12、nal trade? -1978, I suppose. 3._ 5 years _ he graduated from college. _ 2 years _ he smoked.has been has beenIt is since It is since第13页/共29页第十三页，共29页。 Practiceit is + 时间(shjin)+ since before when thatIt is five years _he finished his research.It was five years _he finished his research.It was five

13、years later _he finished his research. It was 5 oclock _ he got home.It was at 5 oclock _ he got home.whenthatsincebeforethat第14页/共29页第十四页，共29页。四、名词词组引导的状语从句(cn j)一些表示时间的名词词组, 如：the moment, each time, every time, the first time, the year等,也用于引导时间状语从句(cn j)，这时它们担当着连接词的功能。 _he went to Shanghai, he pai

14、d a visit to his former teacher A. For the first time B. The first time _l saw him, I thought of his father A. The moment B. At the momentThe first timeThe momentEach time he came, he would bring us a lot of flowers第15页/共29页第十五页，共29页。 -Did you remember to give Mary the money you owed her? -Yes. I ga

15、ve it to her _ _ _ I saw her.the moment the minutethe instant第16页/共29页第十六页，共29页。 Practice1. When every time I was in trouble, he would come to help me.2. At next time you come, do remember bring your son here.3. For the first time I met the girl, I felt in love with her.4. You are welcome to come ba

16、ck at any time you want to.5. At the last time she saw James, he was lying in bed.语法(yf)规则： every time,each time,next time,the first time,any time 等名词(mng c)短语引导状语从句不加介词。第17页/共29页第十七页，共29页。关连词组hardly/scarcelywhenno soonerthan as soon as三种句子结构表示“一就”。注意： 时态(sh ti) as soon as 以一般时态(sh ti)代替将来时态(sh ti)

17、no sooner, hardly, scarcely后的句子用过去完成时，than/when 后的句子用一般过去时。 倒装 当hardly或no sooner位于句首时，要倒装。 五、一就 第18页/共29页第十八页，共29页。我一到达(dod)上海就给你打电话。时态要求：改错: I hardly got home when it began to rain 时态要求：I will call you as soon as I arrive in Shanghai.had以一般现在(xinzi)时代替将来时主句(zh j)用had done, 从句用didno sooner.than,hard

18、ly.when,scarcely.when第19页/共29页第十九页，共29页。 He had hardly arrived when it began to snow Hardly _when it began to snow We had hardly walked into the hall when the lecture started Hardly _ walked into the hall when the lecture started _she gone to sleep than the telephone rang once more _the boy reached

19、the door than he came backhad he arrivedhad weNo sooner hadNo sooner had倒装(do zhun) 第20页/共29页第二十页，共29页。六、until/till until / till “直到(zhdo)止”(肯定句，主句是延续性动词); I ll waite until/till the concert is over (till不能放在句首，但是until了的位置不受限制) notuntil “直到(zhdo)才” he didnt leave the office until he finished the task

20、. 注意：倒装句、强调句，及位于句首时，只能用until。 Not until I returned did she finish her homework. It was not until I returned home that she finished her homework.第21页/共29页第二十一页，共29页。1 The meeting didnt start_ everyone was thereA. becauseB. until C. why D. if 2 The boy _ to bed _ his mother came in. A.went not; until

21、B. didnt go; after C. went; until D. didnt go; until 第22页/共29页第二十二页，共29页。 Practice 1.Mother waited for Tom till/ until far into the night. ( 持续性动词(dngc) 2.Tom didnt get back till / until everything was all right.(短暂性动词(dngc) =_ everything was all right _. = _ everything was all right _ Tom got back.

22、Not until did Tom get backIt was not until that 第23页/共29页第二十三页，共29页。六、by the time 引导(yndo)的从句 By the time we got to the station, the bus _ left. By the time you receive this letter, I _left this city for my hometown.hadwill have 第24页/共29页第二十四页，共29页。 小结(xioji)练习1.They walked out of the room _the meet

23、ing was over.2.They must stay in school _they are sixteen.3.Take the medicine _you go to bed.as soon asby the timebefore第25页/共29页第二十五页，共29页。4.I knew nothing about it _he told me.5.It is more than five years _we started to learn English.6._he talked on, he got more and more excited.7.We should strike

24、 _the iron is hot.untilsinceAswhile第26页/共29页第二十六页，共29页。 1. I was waiting for the bus while I met him. 2. While he was doing his homework, I listened to the radio. 3. Ill tell you as soon as Ill know.4. We often finish our homework after we go to bed.5. We have been friends after we met at school.6. Jim didnt go to bed since his mother came back.改错改错(i cu)：whenwas listening before sinceuntil第27页/共29页第二十七页，共29页。BYE - BYE !BYE - BYE !第28页/共29页第二十八页，共29页。感谢您的观看(gunkn)！第29页/共29页第二十九页，共29页。