初中英語(yǔ)現(xiàn)在進(jìn)行時(shí)課件

　　初中英語(yǔ)現(xiàn)在進(jìn)行時(shí)課件

　　一、概念

　　現(xiàn)在進(jìn)行時(shí)表示說(shuō)話(huà)時(shí)正在進(jìn)行或發(fā)生的動(dòng)作,也可表示當(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．

　　結(jié)構(gòu)：助動(dòng)詞 be ( am / is / are ) +現(xiàn)在分詞.

　　二、 現(xiàn)在分詞的構(gòu)成：

　　1.大多數(shù)動(dòng)詞后可在動(dòng)詞后直接加-ing．

　　Eg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking

　　2. 如果動(dòng)詞以-e結(jié)尾,則去掉-e,再加-ing,

　　如come-coming , have-having , make-making,ride-riding,write-writing,take-taking,use-using．

　　3. 如果動(dòng)詞只有一個(gè)元音字母,而其后跟有一個(gè)輔音字母時(shí),將此輔音字母雙寫(xiě),再加-ing

　　如： hit-hitting,let-letting, put-putting,run-running,sit-sitting．

　　4. 如果動(dòng)詞有兩個(gè)音節(jié),且重音在第二個(gè)音節(jié)上,則末尾的輔音字母須雙寫(xiě),再加-ing,

　　如: for’get-forgetting,pre’fer-preferring,up’set-upsetting．試比較 ’benefit/benfiting, ’differ/differing,’profit/profiting,這些詞的.重音在第一個(gè)音節(jié)上,因此其末尾的輔音字母不雙寫(xiě)．

　　5. 以 -ic 結(jié)尾的動(dòng)詞,應(yīng)先把 -ic 變?yōu)?-ick,再加 -ing,eg: panic/panicking,picnic/picnicking,但 lie/lying ,die/dying,tie/tying是特殊變化要記�。�

　　三、句型結(jié)構(gòu)：

　　1.現(xiàn)在進(jìn)行時(shí)的肯定形式、否定形式、疑問(wèn)形式及其回答,所有變化都體現(xiàn)在助動(dòng)詞 be ( is / am / are ) 上．

　　1)現(xiàn)在進(jìn)行時(shí)的肯定形式：主語(yǔ)+be(am/ is/are)+doing+其他成分

　　I am singing . They are writing .

　　2)現(xiàn)在進(jìn)行時(shí)的否定形式:主語(yǔ)+be(am/ is/are)+not +doing+其他成分

　　I am not singing . They aren’t writing .

　　3）一般疑問(wèn)句及回答：be(am/ is/are)+ 主語(yǔ)+doing+其他成分

　　Am I singing ? Yes ,you are . / No ,you aren’t .

　　Are they writing ? Yes ,they are . / No ,they aren’t .

　　4)特殊疑問(wèn)句及回答:特殊疑問(wèn)詞+be(am/ is/are)+主語(yǔ)+doing+其他成分

　　What are you doing ? We are playing (要求就提問(wèn)內(nèi)容具體回答).

　　2. 縮寫(xiě)形式如下:

　　I am---I’m You are---You’re He is---He’s She is---She’s

　　It is---It’s We are---We’re They are---They’re

　　3.說(shuō)明: 不是所有動(dòng)詞都能用現(xiàn)在進(jìn)行時(shí)態(tài)的,如：

　　see、like、want、know 等動(dòng)詞往往都不用進(jìn)行時(shí)態(tài)．

　　四．用法：

　　1.表示現(xiàn)在( 指說(shuō)話(huà)人說(shuō)話(huà)時(shí)) 正在發(fā)生的事情．往往與 now,at the moment,just 等副詞連用,以示強(qiáng)調(diào)．

　　We are waiting for you. What are you doing? Some one’s knocking at the door．

　　2.正在進(jìn)行著的動(dòng)作可視為未完成的動(dòng)作：

　　He’s talking to his friends in the classroom.

　　可用 still 一詞強(qiáng)調(diào)動(dòng)作的持續(xù)性

　　He’s still talking to his friends in the classroom.

　　3. 表示長(zhǎng)期的或重復(fù)性的動(dòng)作,說(shuō)話(huà)時(shí)動(dòng)作未必正在進(jìn)行．

　　Mr. Black is writing another article.

　　Don’t take that book away. Your father’s using it.

　　She is learning piano under Mr. Black.

　　4.現(xiàn)在進(jìn)行時(shí)可用來(lái)表示不會(huì)長(zhǎng)期發(fā)生的動(dòng)作或情況,或被認(rèn)為在短期內(nèi)正在進(jìn)行的動(dòng)作或存在的情況：

　　What’s your brother doing these days? He’s studying English at Oxford University.

　　5.現(xiàn)在進(jìn)行時(shí)也可以用來(lái)表示當(dāng)前的動(dòng)向：

　　People are becoming more and more beautiful these days.

　　6. 表示漸變的動(dòng)詞有：become,turn,get,grow,run,go,begin等．

　　The leaves are turning brown.

　　It’s getting colder and colder.

　　7.與always,constantly,forever 等詞連用,表示反復(fù)發(fā)生的動(dòng)作或持續(xù)存在的狀態(tài),往往帶有說(shuō)話(huà)人的主觀(guān)色彩．

　　You are always changing your mind.

　　8. 現(xiàn)在進(jìn)行時(shí)(以及 be going to）可以表示為將來(lái)安排好的活動(dòng)和事件 We’re spending next winter in China. 用arrive,come,go,leave 等動(dòng)詞的現(xiàn)在進(jìn)行時(shí)描寫(xiě)行 程安排,也通常有“將到達(dá)”和“將離去”的意思： He’s arriving tomorrow morning.

　　9.當(dāng)現(xiàn)在進(jìn)行時(shí)表示某事發(fā)生的次數(shù)過(guò)多時(shí),則有時(shí)含有抱怨,討厭,贊揚(yáng)等的意思：

　　He is always singing at night,and we can’t fall asleep late at night.

　　練習(xí)

　　一.用現(xiàn)在進(jìn)行時(shí)完成下列句子:

　　1. ______you__________(fly) a kite? Yes,_______.

　　2. ______you___________(sit) in the boat?

　　3. ______he_____________(talk) with me?

　　4. We_______________(play) football now.

　　5. What_________you__________(do)?

　　6. I_____________(sing) an English song.

　　7. What________he____________(mend)?

　　8. He______________(mend) a car.

　　9. These boys _________ (play) tennis on the playground.

　　10. My mother______________ (cook) in the kitchen.

　　11. We can’t help you,because we ____________ (have )classes.

　　12. ________ the boy ___________ (write) his homework?

　　13. Look! These butterflies _________ (fly) in the sky.

　　14. Listen! The girl ___________ (sing) in the next room.

　　15. The naughty boy __________ (swim) in the river.

　　二.選擇

　　1. Look. Lucy is_____ a new bike today.

　　A. jumping B. running C. riding D takeing

　　2. The children _____ football.

　　A. is playing B. are playing C. play the D. play a

　　3. They ______TV in the evening. They do their homework.

　　A. are watching B. can’t watching C. don’t watch D. don’t watching

　　4. Listen! She____ in the classroom.

　　A. is singing B. sing C .to sing D. is sing

　　5. ______are you eating? I’m eating ______ meat.

　　A. What,some B. Which,any C. Where,not D. What,a

　　6. Is she ____ something?

　　A. eat B. eating C. eatting D. eats

　　7.My dictionary ___,I have looked for it everywhere but still___ it.

　　A. has lost,don’t find B. is missing,don’t find C. has lost,haven’t found D. is missing,haven’t found.

　　8..Having a computer for personal use is no easy task because technology _______ so rapidly.

　　A. is changing B. has changed C. will have changed D. will change

　　9. The building_______ ,I can’t stand the noise.

　　A. was being built B. is built C. is being built D. builds

　　10. I can’t catch up with the fashion,because the clothes style_______ all the time.

　　A. has changed B. is changed C. is changing D. changed

　　11. It’s six in the afternoon. The Greens_______ lunch together.

　　A. has B. are having C. have had D. had had

　　12. Don’t make any noise while the students_______ to the class.

　　A. are listening B. listened C. have listened D. had listened

　　13. Jack and Ketty_______ in the lake. Let’s join them,shall we?

　　A. swim B. have swum C. swam D. are swimming

　　14. Look! The children_______ basketball on the playground.

　　A. plays B. played C. is playing D. are playing

　　15. The kite_______ high in the sky now. It looks like a big bird.

　　A. has flown B. is flying C. was flying D. flew

　　16.As we all know,the population in the world _______ faster and faster.

　　A. is grown B. is growing C. are grown D. are growing

　　17. To my surprise,he_______ in class.

　　A. is always speaking B. would always speak C. has always been speaking D. does speak always

　　18. I want to know when he _______ for New York tomorrow.

　　A. has left B. is leaving C. had left D. has been leaving

　　19. He_______ of how he can do more for the people.

　　A. had always thought B. is always thinking C.has always been thought D. thinking always

　　20. Forests _______ and burned at such a speed that they will disappear from the earth in the future.

　　A.cut B. are cut C. are being cut D. had been cut

　　1. Are ,flying,I am 2. Are sitting, 3.Is,talking 4. are plying 5. are,doing 6.am singing 7. is,mending 8. is mending 9.are plying 10.is cooking 11. are having 12. Is ,writing 13. are flying 14.is singing, 15. is swimming

　　1.C 2.B 3.C 4.A 5.A 6.B 7.D 8.A 9C 10.C 11.B 12.A 13.D 14.D 15.B 16.B 17.A 18.B 19.B 20.C

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