7時間狀語從句.doc

個 性 化 輔 導 教 案授課時間：2011.10.30備課時間：2011.10.24年級： 初一 課時：2學生姓名： 教研老師：陳小燕課題：時間狀語從句教學目標正確運用時間狀語從句難點重點時間狀語從句各引導詞間的區(qū)別教學內容教學內容時間狀語從句when, while 和 as 引導時間狀語從句的用法這三個詞的意思很簡單，都有“當時候”的意思一、when 的用法when 從句的動詞大多是瞬時動詞， 多數情況下用的是一般過去時，不用正在進行時，而主句的時態(tài)沒有限制,根據具體情況而定。When she came into my room, I was just reading a book.Were you writing when the teacher came in? 老師進來的時候，你在寫信嗎？ Sorry, I was out when you called me. 對不起，你打電話來的時候我出去了。I had hardlyscarcely closed my eyes when someone knocked at the door. 我剛一閉上眼，就有人在敲門了二、while 的用法while 從句的側重點在于描述動作正在發(fā)生的狀態(tài)，它的意思是：當while 事件正在發(fā)生的時候，另一件事如何如何。所以，while 從句一般用正在進行時。而另一件事的狀態(tài)沒有硬性的要求，根據具體情況而定。例如：1. While my wife was reading the newspaper, I was watching TV. 當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 talking, the bell rang. 正在他們談話的時候，上課鈴響了。4. You cant do your homework while youre watching TV. 你不能一邊看電視一邊做家庭作業(yè)。 5. While John was sitting biting his nails, I was working out a plan 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。這句話中，是說趁著鐵是熱的這段時間，趕緊打鐵。如果換成 when 意思就變了，相當于說鐵只熱了一下，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，另一件事也正在進行當中。但與 while 從句不同的是，as 從句一般不用正在進行時，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 songs, tears ran down her cheeks. 當我媽媽唱起那些老歌時，眼淚順著她的臉頰流了下來。 2. The students took notes as they listened. 學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. Just as he caught the ball, there was a tearing sound. 當他抓住球的時候，有一種撕裂的聲音。 as 表達的事件，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，有強調 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。2. The atmosphere gets thinner and thinner as the height increases. 隨著高度的增加，大氣越來越稀薄。 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了。 少數情況下，如果強調動作正在發(fā)生，as 從句也可以用正在進行時。這只能算是特例了。1. The sad mother sat on the roadside, shouting 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 began to snow. 正當我們出門時，雪開始下起來。3. He came in as I was going to bed. 我正要上床睡覺，他進來了。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. When /While /As we were dancing, a stranger came in. 當我們跳舞時，一位陌生人走了進來。 dance 為延續(xù)性動詞2. When /While /As she was making a phone call, I was writing a letter. 當她在打電話時，我正在寫信。 make為延續(xù)性動詞3. While/When/ As I was walking down the street, I noticed a police car in front of the bank. 我順著馬路往前走時，發(fā)現銀行門前停著一輛警車。五、比較while, when, as1）as, when 引導短暫性動作的動詞。Just as / Just when / When I stopped my car, a man came up to me. 我剎車后，有一個人向我走來。 2）當從句的動作發(fā)生于主句動作之前，只能用when 引導這個從句，不可用as 或 while。When you have finished your work, you may have 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 went 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问奖硎镜囊馑际恰白瞿呈轮敝聊硶r”，動詞必須是延續(xù)性的。否定形式表達的意思是“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. 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 sets.）否定句：She didnt arrive until 6 oclock. 她直到6點才到。 Dont get off the bus until it has stopped. 公共汽車停穩(wěn)后再下車。 I didnt manage to do it until you had explained 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。Until you told me, I had heard nothing of what happened. 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？ - Until next Monday.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. 直到19 世紀初，人類才知道熱為何物。 Not until I began to work did I realize how much time I had wasted. 直到工作，才認識到我已蹉跎了許多歲月。 5）It is not until that. It was not until I began to work that I realized how much time I had wasted. 6）表示“一就”的結構 hardly/scarcelywhen/before, no soonerthan和as soon as都可以表示“一就”的意思。 I had hardly / scarcely got home when it began to rain. 剛回家，就下起雨來了。 I had no sooner got home than it began to rain. As soon as I got home, it began to rain. 注意：如果hardly, scarcely 或no sooner置于句首，句子必須用倒裝結構。 Hardly / Scarcely had I got home when it began to rain. No sooner had I got home than it began to rain.練習在下列各句的空格中填入適當的連詞1_ he comes tomorrow, I shall ask where he has been. 2_ he was speaking, everybody listened carefully. 3I saw her just _ she was getting off the train. 4Have a good look at that man _ you pass him. 5It was already eight oclock _ we got there. 6. I was about to go out _ a visitor came. 7Well go to the country at the beginning of June, _ the summer harvest will start.8. He learned to speak German _ 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. 11. He had learned Chinese _ he came to China. 12. _ the work was done, we sat down to sum up experience. 13. 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。20. _ I get to the airport, I will phone you to pick me up. 21. They were about to leave _ it began to rain. 22. He always stay in bed _ lunch time. 23. I like playing tennis _ my younger sister prefers watching ball games. 24. _ I understand your viewpoint, I dont agree with you. 25. _ she grew older, she became more responsible. Key: 1. When 2. While / When 3. as 4. when/as5. when 6. when 7. when 8. while9. while10. whenever11. before 12. After 13. since 14. till/until15. until 16. before17. as soon as 18. before 19. when20. As soon as21.when 22. until 23. while24. While 25. As單項選擇。( ) 1. My house is _ the post office and the bank.A on B in C between D over( ) 2. Whats your favorite music ? _.A I like pop music best B My favorite singer is Liu HuanC I often play basketball with you D My favorite is English( ) 3. _? I like a small one.A Where is the country B What size pizza would you likeC Why do you like panda best 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 couldnt( ) 5. Do you like country ? Yes, _.A Yes, I am a country fan B Yes, I am a pop fan C Yes, I am interested in classical music D Yes, he is a fan ( ) 6.What does the rock singer_? He is tall and thin.A look B look like C looks like D like( ) 7. The girl is _ quiet.A a bit little B a little bit C little a bit D bit a little( ) 8. My friend is a _ girl.A good-looking B good-look C looking good D look-good( ) 9. _? Go upstairs and turn right.A What are the jazz CDs B Where are the CDsC Who is the woman D How can you sing the song( ) 10. _? He is thirteen years old. A Where is he from B Why do you like him C How old is he D Is he very smart( ) 11. Do you like a small, medium or large pizza? _.A I d like a medium pizza B Yes, I likeC Id like some cheese on it D I want buy some( ) 12. I dont like hot dogs _ hamburgers.A and B or C with D but( ) 13. _ a bottle of milk, some hot dog ,and hamburgers on the table. A There are B There is C There have D There has( ) 14. _ ? She is a nurse. A Where does your mother do B What does your mother doC What is your mother doing D Who is your mother( ) 15. Where do you work ? _.A I work in a school B I am a teacher C I want to be a teacher D I go to school every day句式轉換。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 went 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 morning. （畫線提問） _6. The Japanese woman was 70 years old .（畫線提問） _寫