7時間狀語從句

1、個性化輔導(dǎo)教案授課時間：2011.10.30備課時間：2011.10.24年級：初一課時：2學(xué)生姓名：教研老師：陳小燕課題：時間狀語從句教學(xué)目標(biāo)正確運用時間狀語從句難點重點時間狀語從句各引導(dǎo)詞間的區(qū)別教 學(xué) 內(nèi) 容時間狀語從句when, while和as引導(dǎo)時間狀語從句的用法這三個詞的意思很簡單，都有 當(dāng)時候”的意思一、when的用法whe n從句的動詞大多是瞬時動詞，多數(shù)情況下用的是一般過去時，不用正在進(jìn)行時，而主句的時態(tài)沒有限制，根據(jù)具體情況而定。Whe n she came into my room, I was just readi ng a book.Were you writing

2、 when the teacher came in?老師進(jìn)來的時候，你在與信嗎？Sorry, I was outwhen you called me.對不起，你打電話來的時候我出去了。I had hardlyscarcely closed my eyes whe n some one kno cked at the door.我剛一閉上眼，就有人在敲門了二、while的用法while從句的側(cè)重點在于描述動作正在發(fā)生的狀態(tài)，它的意思是：當(dāng)while事件正在發(fā)生的時候，另一件事如何如何。所以，while從句一般用正在進(jìn)行時。而另一件事的狀態(tài)沒有硬性的要求，根據(jù)具體情況而定。例如：1. While

3、my wife was read ing the n ewspaper, I was watchi ng TV.當(dāng)妻子正在看報紙的時候，我正在看電視。2. While Jim was mending his bike, Lin Tao came to see him.3. While they were talki ng, the bell rang.正在他們談話的時候，上課鈴響了。4. You can t do your homework while you re watching TV.你不能一邊看電視一邊做家庭作業(yè)。教學(xué)內(nèi)容5. While Joh n was sitt ing bit

4、ing his n ails, I was work ing out a pla n to get us home.約翰坐在那里咬指甲時，我正在制定一個回家的計劃。while表示的是一段時間，是一個過程。因此，如果含有一段時間”的含義的時候，就可以用while。6. Strike while the iron is hot.趁熱打鐵。whe n意思就變了，相當(dāng)于這句話中，是說趁著鐵是熱的這段時間，趕緊打鐵。如果換成 說鐵只熱了一下，打一下，然后鐵就冷了。這顯然不符合文意。 三、as的用法as從句表示的也是一件事情正在發(fā)生，另一件事也正在進(jìn)行當(dāng)中。但與while從句不同的是，as從句一般不用正在

5、進(jìn)行時，而是一般過去時。as從句一般可以翻譯成 邊邊” 例如：1. As my mother sang those old son gs, tears ran dow n her cheeks.當(dāng)我媽媽唱起那些老歌時，眼淚順著她的臉頰流了下來。2. The stude nts took n otes as they liste ned 學(xué)生們邊聽課邊做筆記。3. As we talked on, he got more and more excited我們繼續(xù)往下談的時候，他越來越興奮。4. The little girls sang as they went.小姑娘們一邊走，一邊唱。5. J

6、ust as he caught the ball, there was a teari ng sound.當(dāng)他抓住球的時候，有一種撕裂的聲音。as表達(dá)的事件，往往只是主句動作發(fā)生的背景或條件時，as只是一個次要的時間說明，不像while從句，有強(qiáng)調(diào) while動作本身的意思。因此，as常常翻譯成隨著”之意。1. As the time went on, the weather got worse.隨著時間的推移，氣候更加糟糕。Do Ron2. The atmosphere gets thi nner and thinner as the height in creases.隨著高度的增加，大

7、氣越來越稀薄。3. As years go by, China is getting stronger and richer.隨著時間一年一年過去，中國變得越來越富強(qiáng)了。少數(shù)情況下，如果強(qiáng)調(diào)動作正在發(fā)生，as從句也可以用正在進(jìn)行時。這只能算是特例了。1. The sad mother sat on the roadside, shouti ng as she was crying.傷心的媽媽坐在路邊，邊哭邊叫喊。2. As we were going out, it bega n to snow.正當(dāng)我們出門時，雪開始下起來。3. He came in as I was going to be

8、d.我正要上床睡覺，他進(jìn)來了。四、when, while, as 的互換如果從句動作和主句動作同時發(fā)生，并且從句動作為延續(xù)性動詞時，when，while，as可以互換使用。1. Whe n /While /As we were dancing, a stra nger came in.當(dāng)我們跳舞時，一位陌生人走了進(jìn)來。danee為延續(xù)性動詞2. Whe n /While /As she was mak ing a phone call, I was writ ing a letter.當(dāng)她在打電話時，我正在寫信。make為延續(xù)性動詞3. While/Whe n/ As I was walk i

9、ng dow n the street, I no ticed a police car in front of thebank.我順著馬路往前走時，發(fā)現(xiàn)銀行門前停著一輛警車。五、比較 while, when, as1) as, when引導(dǎo)短暫性動作的動詞。Just as / Just whe n / When I stopped my car, a man came up to me.我剎車后，有一個人向我走來。2) 當(dāng)從句的動作發(fā)生于主句動作之前，只能用when引導(dǎo)這個從句，不可用as或while。Whe n you have fini shed your work, you may h

10、ave a rest.干完活后，你可以休息一下。3）從句表示隨時間推移”連詞能用as,不用when或while。As the day we nt on, the weather got worse.日子一天天過去，天氣越變越壞。2）比較 until 和 till此兩個連詞意義相同?？隙ㄐ问奖硎镜囊馑际?做某事直至某時”動詞必須是延續(xù)性的。 否定形式表達(dá)的意思是 直至某時才做某事”動詞為延續(xù)性或非延續(xù)性都可以。正確使用這兩 個連詞的關(guān)鍵之一就在于判斷句中的動詞該用肯定式還是否定式?？隙ň洌篒 slept until midnight.我一直睡到半夜時醒了。Wait till I call you

11、.等著我叫你。（在肯定句中可用 before 代替。例如：Lets get in the wheat before the sun set）.否定句：She did nt arrive un til 6 oclock.她直到 6 點才到。Dont get off the bus un til it has stopped.公共汽車停穩(wěn)后再下車。I did nt man age to do it un til you had expla ined how.直到你教我后，我才會做。區(qū)別：1）until可用于句首，而till通常不用于句首。Un til you told me, I had hear

12、d nothing of what happe ned.直到你告訴我以前，出了什么事我一點也不知道。3） until when疑問句中，until要放在句首。例如：-Until when are you staying? 你呆到什么時候？-Un til next Mo nday.呆到下周一。注意：否定句可用另外兩種句式表示。4）Not until 在句首，主句用倒裝。Not until the early years of the 19th century did man know what heat is.直至U 19 世紀(jì)初, 人類才知道熱為何物。Not until I began to

13、work did I realize how much time I had wasted.直至U工作，才認(rèn)識至U我已蹉跎了許多歲月。5) It is not untilthatIt was not until I began to work that I realized how much time I had wasted.6）表示一就”的結(jié)構(gòu)hardly/scarcelywhen/before, no soone和 as soonas都an以表示 一就”的意思。I had hardly / scarcely got home when it began to rain.剛回家，就下起雨來

14、了。I had no sooner got home tha n it bega n to rain. As soon as I got home, it bega n to rain.注意：如果 hardly, scarcely 或 no sooner置于句首，句子必須用倒裝結(jié)構(gòu)。Hardly / Scarcely had I got home whe n it bega n to rain. No sooner had I got home tha n it bega n to rain.練習(xí)在下列各句的空格中填入適當(dāng)?shù)倪B詞1. he comes tomorrow, I shall ask

15、 where he has been.2. he was speaking, everybody listened carefully.3. I saw her justshe was getting off the train.4. Have a good look at that manyou pass him.5. It was already eight oclockwe got there.6. I was about to go outa visitor came.7. Well go to the country at the beg inning of June,the sum

16、mer harvest will start.8. He lear ned to speak Germa nhe was in Berli n.9. Henry is in charge of the officeMr. Smith is away.10. I liste n to the recorderI have time.11. He had lear ned Chin esehe came to Chi na.12. the work was done, we sat dow n to sum up experie nee.13. I have nt see n himhe move

17、d to the other side of the tow n.him.14. I waited _15. It was nothe came back.16. She likes everyth ing to be in placeshe starts to work.17. The thieves ran awaythey caught sight of the police.18. They decided to go back hometheir money ran out.19. We played outside till sun set,it bega n to rain20.

18、 I get to the airport, I will phone you to pick me up.21. They were about to leaveit bega n to rain.22. He always stay in bedlunch time.23. I like play ing tennismy youn ger sister prefers watch ing ball games.24. I understand your viewpoint, I d(n t agree with you.25. she grew older, she became mor

19、e resp on sible.Key:1. When2. While / When3. as4. when/as5. when6. whe n 7. whe n 8. while 9. while 10. whe never11. before12. After 13.since 14. till/u ntil15. un til 16. before 17. as soo n as 18. before 19. when20. As soo n as21.whe n22. until23. while24. While 25. As單項選擇。()1.My house isthe post

20、office and the ban k.AonB inC betwee nD over()2.What s your favorite music ? .A I like pop music bestB My favorite sin ger is Liu Hua nC I ofte n play basketball with you D My favorite is En glish()3.? I like a small one.A Where is the countryB What size pizza would you likeC Why do you like panda b

21、est D Where are elephants from()4. Did you go shopping yesterday? .A Yes, I do B Yes, I did C Yes, I am D No, I couldn t()5. Do you like country ? Yes,.A Yes, I am a country fanB Yes, I am a pop fanC Yes, I am in terested in classical musicD Yes, he is a fan()6.What does the rock singer? He is tall

22、and thi n.A look B look like C looks likeD like()7. The girl isquiet.A a bit little B a little bit C little a bit D bit a little()8. My friend is agirl.D look-goodA good-look ingB good-look C look ing -good(A C (A)9.? Go upstairs and turn right.What are the jazz CDsB Where are the CDsWho is the woma

23、nDHow can you si ng the song)10. ? He is thirteen years old.IsWhere is he from B Why do you like him C How old is he D寫出下列名詞的復(fù)數(shù)形式:smart（AC（A（A（AC（AC）11. Do you like a small, medium or large pizza?.I d like a medium pizza BYes, I likeI d like some cheese on it DI want buy some）12. I don likte hot dog

24、shamburgers.andB orC withD but）13. a bottle of milk, some hot dog ,and hamburgers on the table.There are B There is C There haveD There has）14. ? She is a nu rse.Where does your mother do BWhat is your mother doing D）15. Where do you work ?I am a teacherI work in a schoolBWhat does your mother do Wh

25、o is your motherI want to be a teacher D I go to school every day句式轉(zhuǎn)換。1. We had eggs and milk for breakfast.（改為一般疑問句）2. There was a beautiful girl in the park.（畫線提問）3. David we nt to the summer camp last week.（改為否定句）4. They usually does homework at home.（用 now 改寫）5. He went for a walk .every.morni ng.（畫線提問）toyorangechairclassbenc