【公开课】高中英语复习北师大版《时间状语从句》(共64张PPT)---最新课件

1、Welcome!A long time ago,there was a huge tree.It loved a little boy.The boy loved to come and play around it whenever he was free.While apples riped(成熟),He climbed to the tree topand ate the apples.When he was tired, he took a nap under the shadow.As the time went by, he had grown up, he never playe

2、d around the tree.Because Im no longer a kid now. I dont playaround the tree anymore. I need money to buy toys. The tree said,“Sorry,I dont have money,but you can pickall my apples and sell them.So,you will have money.” The boy was so excited the time he heard it.He grabbed(攫取) all the apples and le

3、ft happily.For the boy never came back after he picked the apples,the tree was sad.The tree wasnt excited until the boy returned one day.The tree said”Come and play with me”.I dont have time to play.I have to work for my family.We need a house for shelter.Can you help me?“Sorry,but you can chop off(

4、砍掉)My branches to build your house.”So the man cut all the branchesof the tree and left happily.As soon as the man returned,the tree was delighted.The man said “I am sad and getting old,So I want to go sailing to relax myself.Can you give me a boat?”“Use my trunk(树干) to build your boat”,The tree sai

5、d.The man cut the tree trunk and made a boat.The tree was happy, but not really The tree had been ill for a long timesince the boy went sailing.Finally, the boy returned after he left for so many years.Sorry,my boy. I had some leaves not long before you come back,but I dont have anything for you now

6、.“I dont need much more,just a placeto rest. Im tired after all these years.”The boy replied.“Good!Old tree roots are the best place to lean(倚靠) on and rest.Come,come sit down with me and rest.”The man sat down and the tree was glad and smiled with tearsThe tree is our parent. They give us everythin

7、g they have.The Adverbial Clause of Time时间状语从句一,What is an adverbial clause An adverbial clause is a dependent clause that functions as an adverb. In other words, it contains a subject (explicit or implied) and a predicate, and it modifies a verb. 1.Adverbial Clauses of Time（时间状语从句） 2.Adverbial Clau

8、ses of Reason (原因状语从句） 3.Adverbial Clauses of Conditions (条件状语从句） 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.Adverbial Clauses of Comparison（比较） 8.Adverbial Clauses of Concession (让步） 9.Adverbial Clauses of Manner (方式状语从句 )Di

9、fferent Kinds of Adverbial Clauses: 时间状语从句引导词可分为两部分 when whenever as while before after until (till) since every timenext timethe first/timeas soon asthe momentthe minuteinstantlyimmediatelydirectlyNo soonerthanHardlywhen (一就) While apples riped(成熟), he climbed to the tree top and ate the apples.Whe

10、n he was tired, he took a nap under the shadow.As the time went by, he had grown up, he never played around the tree.考点1：when / while / as whenwhile as 1.当.的时候2.这时,正在这时 *be doingwhen *be about to do sth when *be on the point of doing sth when *had (just) done when1.当的时候(从句的谓语必须是延续性动词 ）2.而,然而(强调两者对比）

11、3.虽然（让步）1.一边.一边.(侧重强调主、从句动作同点或同段进行)2.随着.3.考虑到;既然(considering that)Exercises: when, while, as填空1._ he broke in, we were having an English class.2.Iwasabouttogoouttoplay basket-ball _itbegantorainhard. 3.The train had gone _ I got to the station4.It was foolish of you to take a taxi_ you could easily

12、walk there in five minutes .whenwhenwhenwhen考点1： when, while, as的区别：5. _ I was walking down the street, I came across an old friend of mine. 6. The little children sang happily _ they walked along .7._ summer comes, it is getting hotter and hotter.When/While as As 8.The cost of living in Glasgow is

13、among the lowest in Britain, _ the quality of life is probably one of the highest.9._ I accept that he is not perfect, I do actually like the person.whileWhile而，然而(二者对比）尽管，虽然（放在句首）Finally, the boy returned after he left for so many years.Sorry,my boy. I had some leaves not long before you come back,

14、but I dont have anything for you now.考点2 ：before的用法1)表示“在之后才” We had sailed four days before we saw land.2)“还没来得及就” He ran out of the room before I could say a word.3)“在之前就” Many people left for home before the film ended .4).和hardly连用，”hardlybefore”表示“刚一就”。该结构主句常用过去完成时，当hardly位于句首时要用倒装语序，例如： I had

15、hardly sat down before (when)the telephone rang. The girl had hardly rung the bell _the door was opened suddenly, and her friend rushed out to greet her. A.before B.until C.as D.since before表示“要过多久才” It will be (is) +一段时间+before从句(does) 要过才能做It will not be +一段时间+before从句(does) 要不了 就能做It was +一段时间+be

16、fore从句(did)过了做了It was not+一段时间+before从句(did) 没过做了Exercises:1.You must learn to consult your feelings and your reasonyou reach any decision. A. although B. before (2013湖南高考) C. because D. unless 2.How long do you suppose it will behe arrives at the Bell Tower? An hour or so. (2013咸阳模拟) A. when B. bef

17、ore C. since D. after3. The fire went on for quite some time _ it was brought under control. A. whenB. since C. after D. before 4.The meaning of the word “nice” changed a few times_it finally came to include the sense “pleasant”. (2014安徽)A.before B.after C.since D.while5. The little girl cried for s

18、everal minutes _ her mother came to comfort her （2014安徽省合肥高三一模） A.unless B.while C.once D.before The tree was happy, but not really The tree had been ill for a long timesince the boy went sailing.过去一个时间点 (如具体的年、月、日期、钟点）考点3： sinceI have been here since 2002.从句Great changes have taken place since you

19、left.since I have been here since nine years ago. 一段时间+ agoIt is/ has been +一段时间since 从句(did)It is 10 years since he came here延续性动词:反过来翻译短暂性动词:直译It is 10 years since he lived here.他不在这儿住已有10年了.他来这儿有10年了.1.-Havent seen you for ages! Do you still work in Xian?-_.Its four years since I worked there.A.N

20、o, I dont. B.No, I havent C.Yes, I do. D. Yes, I have. 2. It _（ be) 5 years since he graduated from college.is/has been 易混淆句型 when/before/since/that1.It was 5 oclock _we arrived at the village.2.It was at 5 oclock _he got home.3.As it reported, it is / has been 100 years _ Tsinghua University was fo

21、unded. .4.It was/ will be two weeks _ we met /meet again.5.It was 5 years laters_ he finished his research.whenthatsincethatbeforeThe tree wasnt excited until the boy returned one day.The tree said”Come and play with me”.(在句首、与not无间隔连用及在强调句中只用until)We waited till (until) he came back She didnt stop

22、working until eleven oclock . 我们一直等到他回来。她到11点钟才停止工作。如如主句动词是延续性动作，常用肯定式，表示“直到为止”;如主句动词是瞬间动词，常用否定式，表示“直到才”考点4： till /untilnot until 句型与强调句型结合I didnt go to sleep until he came back.与倒装句式结合 not until he came back I went to sleep.Not until he came back did I go to sleep.It was thatAs soon as the man retu

23、rned,the tree was delighted.1)：as soon as, immediately, directly, instantly, the moment, the instant, the minute “一就”。2): upon (on) +V-ing /n. at+n. Eg:The crying boy smiled at the sight of his mother. On arriving (leaving, returning)3)：No soonerthan =Hardly/ Scarcely when考点5： “一就”-Did you remember

24、to give Mary the money you owed her?-Yes. I gave it to her _ _ _ _ 一.就 _ _I saw her.as soon asthe moment the minutethe instantimmediately directly Hardly/Scarcelywhenno soonerthan 主倒从不倒=Hardly had I got home when it began to rain.=No sooner had I got home than it began to rain.我刚一到家，就下雨了。I had hardl

25、y got home when it began to rain.主句过去完成时，从句一般过去式 The tree said,“Sorry,I dont have money,but you can pickall my apples and sell them.So,you will have money.” The boy was so excited the time he heard it.He grabbed(攫取) all the apples and left happily.主要有everytime(每次)，eachtime(每次)，(the)nexttime(下次)，anyt

26、ime(随时)，(the)lasttime(上次)，thefirsttime(第一次) 考点6：表示“上次”、“下次”、“每次”等的 时间连词I thought her nice and honest_I met her.first time B. for the first time C. the first time D. by the first time 考点7：by the time在一般情况下，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： 1)By the time you came back, I

27、_ (finish) this book. 2)By the time you come here tomorrow, I _(finish) this work. had finishedwill have finished考点8：时间状语从句的省略时条让方地，主语同，谓语be,省去二者都可以；如果主语是it,省去its也可以。1.While she is still a student, she played many roles.2.When he was told the secret, he was surprised.3.She always sings while she is

28、doing her work. 4.I prefer my milk a little sweetened whenever it is possible. While watching TV, _.A the doorbell rangB the doorbell ringsC we heard the doorbell ringD we heard the doorbell rings训练与巩固1.The young couple,who returned my lost wallet,left_I could ask for their names.(2014陕西) A.while B.

29、before C.after D.since2. One Friday, we were packing to leave for a weekend away _my daughter heard cries for help. A. after B. while C. since D. when3.They had no sooner arrived at the airport_it was time to check in. A.when B.Before C.than D.though4._ volleyball is her main focus, shes also great

30、at basketball. (2011北京卷) A.Since B.Once C.Unless D.While5.It is well-known that atmosphere gets thinner and thinner _ the height increases. A.whileB.whenC.asD.with6.Theres no way of knowing why one man makes an important discovery _ another man, also intelligent, fails. (2013全国卷I) A. since B. if C.

31、as D. while7.I have heard a lot of good things about you _ I came back from abroad. (2013陕西) A.since B.until C.before D.when8.Because of the heavy traffic，it was already time for lunch break she got to her office(2010.四川)Asince Bthat Cwhen Duntil9.John thinks it wont be long he is ready for his new job. （2010.陕西）A. when B. after C. before D. sinceA 10.Its much easier to make friends_you have similar interests. (2013.安徽)A.unless B. when C.even though D. once11. It cost me 20 yuan to get to the Quanzhou Museum yesterday. Well, it was a waste of mon