第四章第四章 動(dòng)詞和時(shí)態(tài)動(dòng)詞和時(shí)態(tài)第三節(jié)第三節(jié) 現(xiàn)在進(jìn)行時(shí)現(xiàn)在進(jìn)行時(shí) 知識(shí)梳理知識(shí)梳理一、現(xiàn)在進(jìn)行時(shí)的用法現(xiàn)在進(jìn)行時(shí)表示現(xiàn)在正在進(jìn)行或正在發(fā)生的動(dòng)作，也可以表示當(dāng)前一段時(shí)間內(nèi)的活動(dòng)或現(xiàn)階段正在進(jìn)行的動(dòng)作。句型結(jié)構(gòu)是： be+ving形式（現(xiàn)在分詞）。 標(biāo)志時(shí)間詞：now，look，listen，over there，look at，Its+時(shí)間等。 二、現(xiàn)在分詞的變化規(guī)則1一般情況下，在動(dòng)詞詞尾加ing。 如：gogoing, playplaying, eateating 2. 以不發(fā)音的字母e結(jié)尾的動(dòng)詞，去e再加ing。 如：writewriting, comecoming, taketaking 3. 以重讀閉音節(jié)結(jié)尾，且詞尾只有一個(gè)輔音字母的動(dòng)詞，雙寫(xiě)最后這個(gè)輔音字母再加ing。 如：runrunning, swimswimming, shopshopping 4. 以ie結(jié)尾的動(dòng)詞，將ie改為y, 再加ing。 如：diedying, lielying三、現(xiàn)在進(jìn)行時(shí)的句型結(jié)構(gòu)1肯定句： 主語(yǔ)+be動(dòng)詞(am / are / is)+ving+其他. 如：I am washing my hands now. Look！ Jack is listening to music. Tom and his brother are doing their homework. It is nine oclock. The children are having class. 2. 否定句：主語(yǔ)+be動(dòng)詞(am / are / is)+not+ving+其他. 如：I am not (Im not) washing my hands now. The children are not(arent) playing over there. Its six past ten. Tom is not (isnt) having dinner. 3.一般疑問(wèn)句：Is / Are / Am+主語(yǔ)+ving+其他？ 如：Are you watching TV now? Yes, I am. / No, I am not. Is the girl playing the piano? Yes, she is. / No, she isnt. Are the children swimming in the river? Yes, they are. / No, they arent. 4. 特殊疑問(wèn)句： 特殊疑問(wèn)詞+一般疑問(wèn)句？ 如：I am watching TV now. What are you doing now? Uncle Wang is drinking tea in the living room. Where is Uncle Wang drinking tea?考點(diǎn)精析考點(diǎn)精析考點(diǎn)考點(diǎn)1 考查現(xiàn)在進(jìn)行時(shí)的用法考查現(xiàn)在進(jìn)行時(shí)的用法【例1】 用所給動(dòng)詞的適當(dāng)形式填空。 1. She (draw) a map now. 2. Listen! The boys (sing).解析:本題考查填動(dòng)詞的適當(dāng)形式，必須要弄清楚句子的時(shí)態(tài)。第1小題中的時(shí)間詞now，第2小題中的Listen 都表示動(dòng)作正在發(fā)生，都要用現(xiàn)在進(jìn)行時(shí)；同時(shí)，注意ving 之前一定要根據(jù)主語(yǔ)的形式加上相應(yīng)的be動(dòng)詞。 答案：1. is drawing 2. are singing舉一反三 1. 寫(xiě)出下列動(dòng)詞的現(xiàn)在分詞形式。 (1) sing _ (2) dance _ (3) write _ (4) shop _ (5) put _ (6) die _ 2. 單項(xiàng)填空。( )(1) Mum and I housework now. A. doingB. am doingC. are doing ( )(2) All the people a football match. Everybody is excited. A. watch B. is watching C. are watching( )(3) they their stamps at the corner？ A. Does； show B. Are； showing C. Do； showing dyingsingingdancingwritingshoppingputtingCCB考點(diǎn)考點(diǎn)2 考查有關(guān)現(xiàn)在進(jìn)行時(shí)句子的句型轉(zhuǎn)換考查有關(guān)現(xiàn)在進(jìn)行時(shí)句子的句型轉(zhuǎn)換【例2】按要求改寫(xiě)下列句子。1. Sarah is answering the phone. (改為否定句) _2. They are riding a bike. (就畫(huà)線部分提問(wèn)) _ 3. She cleans her desk in the classroom.（改為現(xiàn)在進(jìn)行時(shí)） _ 解析:本題考查現(xiàn)在進(jìn)行時(shí)的句型轉(zhuǎn)換，要以be動(dòng)詞為中心進(jìn)行變化。第1小題改否定句，只要在be動(dòng)詞之后加not; 第2小題是對(duì)進(jìn)行時(shí)狀態(tài)下的活動(dòng)提問(wèn)，用“What doing?”，注意be動(dòng)詞要與主語(yǔ)的數(shù)保持一致。第3小題要將原句中的謂語(yǔ)動(dòng)詞換成“is+現(xiàn)在分詞”，因?yàn)檫@才是現(xiàn)在進(jìn)行時(shí)的正確形式。 答案：1. Sarah is not (isnt) answering the phone. 2. What are they doing？ 3.She is cleaning her desk in the classroom.舉一反三 按要求改寫(xiě)下列句子。 1. Kenny often plays the guitar on the weekend. (用now 改寫(xiě)句子) _ 2. We are watching cartoons on TV now. (改為否定句) _ 3. My grandpa is writing a letter. (就畫(huà)線部分提問(wèn)) _ 4. 我正在和父母親談?wù)撐业纳铡?（漢譯英） _Kenny is playing the guitar now.We arent watching cartoons on TV now.What is your grandpa doing?Im talking about my birthday with my parents.過(guò)關(guān)檢測(cè)過(guò)關(guān)檢測(cè)一、寫(xiě)出下列動(dòng)詞的現(xiàn)在分詞形式。 1. play _ 2. look _ 3. study _ 4. watch _ 5. fight _ 6. wait _ 7. sing _ 8. paint _ 9. go _ 10. wash _ 11. cut _ 12. run _playinglookingstudyingwatchingfightingwaitingsingingpaintinggoing washingcuttingrunning13. sit _ 14. begin _15. put _ 16. get _17. shop _ 18. swim _19. take _ 20. make _21. write _sittingbeginningputtinggettingshoppingswimmingtakingmakingwriting二、單項(xiàng)填空。 ( )1. Look！I _ a red hat now. A. wearing B. am wearing C. is wearing ( )2. Tom _ TV in the room now. A. are watching B. is watching C. is watch ( )3. Look!Jane _ housework. A. is do B. doing C. is doing ( )4. Some of the girls _. A. sing B. is singing C. are singingBBCC( )5. Hes _ basketball now. A. play B. is playing C. playing( )6. They _ birds in the sky now. A. are looking at B. look at C. looking at( )7. “Dont talk in class，”the teacher _. A. is speaking B. is saying C. says( )8. _ you _ ball games with your friends now? A. Is; playing B. Are; playing C. Do; playCACB三、用所給動(dòng)詞的適當(dāng)形式填空。 1. My mum _(cook) dinner for us now. 2. Sam _(not listen to) English. He is listening to music. 3. _they _(sleep) now? Yes, they are. 4. Listen!Who _(read) English? 5. Look at those old people. They are _(sing) and _(dance). 6. The children _(swim) in the lake now. 7. Look!Kate and Mary _(clean) the windows now. 8. Joan likes _(paint) very much. is cookingisnt listening toAresleepingis readingsingingdancingare swimmingare cleaningpainting四、按要求改寫(xiě)下列句子。 1. They are making dumplings. (改為一般疑問(wèn)句) _ 2. Tom is listening to the teacher. (改為否定句) _ 3. He is drinking tea under the tree. (就畫(huà)線部分提問(wèn)) _Are they making dumplings?Tom isnt listening to the teacher.What is he doing under the tree?4. Is Ken climbing the tree in the garden? (作肯定回答)_5. Tom is reading a book in his room. (就畫(huà)線部分提問(wèn))_6. I am waiting for a bus. (就畫(huà)線部分提問(wèn))_Yes, he is.Where is Tom reading a book?What are you doing?五、漢譯英。 1.湯姆正在寫(xiě)一封信。 _ 2.我正在游泳。 _ 3.他們正在聽(tīng)音樂(lè)。 _ 4.小貓正在跑。 _ 5.媽媽正在看書(shū)。 _Tom is writing a letter.Im swimming.They are listening to music.The cat is running.My mother is reading a book.