小学一般现在进行时讲解及练习

现在进行时一、概念现在进行时表示说话时正在进行或发生的动作,也可表示当前一段时间内的活动或现阶段正在进行的动作．结构：助动词be ( am / is / are ) +现在分词.二、现在分词的构成：1.大多数动词后可在动词后直接加-ing．Eg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking2. 如果动词以-e结尾,则去掉-e,再加-ing,如come-coming , have-having , make-making,ride-riding,write-writing,take-taking,use-using．3. 如果动词只有一个元音字母,而其后跟有一个辅音字母时,将此辅音字母双写,再加-ing如：hit-hitting,let-letting, put-putting,run-running,sit-sitting．三、句型结构：1.现在进行时的肯定形式、否定形式、疑问形式及其回答,所有变化都体现在助动词be ( is / am / are ) 上．1)现在进行时的肯定形式：主语+be(am/ is/are)+doing+其他成分I am singing . They are writing .2)现在进行时的否定形式:主语+be(am/ is/are)+not +doing+其他成分I am not singing . They aren’t writing .3）一般疑问句及回答：be(am/ is/are)+ 主语+doing+其他成分A m I singing ? Yes ,you are . / No ,you aren’t .Are they writing ? Yes ,they are . / No ,they aren’t .4)特殊疑问句及回答:特殊疑问词+be(am/ is/are)+主语+doing+其他成分What are you doing ? We are playing (要求就提问内容具体回答).2. 缩写形式如下:I am---I’m You are---You’re He is---He’s She is---She’sIt is---It’s We are---We’re They are---They’re3.说明: 不是所有动词都能用现在进行时态的,如：see、like、want、know 等动词往往都不用进行时态．四．用法：1.表示现在( 指说话人说话时) 正在发生的事情．往往与now,at the moment,just 等副词连用,以示强调．We are waiting for you. What are you doing? Some one’s k nocking at the door．2.正在进行着的动作可视为未完成的动作：He’s talking to his friends in the classroom.可用still 一词强调动作的持续性He’s still talking to his friends in the classroom.3. 表示长期的或重复性的动作,说话时动作未必正在进行．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.现在进行时可用来表示不会长期发生的动作或情况,或被认为在短期内正在进行的动作或存在的情况：What’s your brother doing these days? He’s studying English at Oxford University.随堂练习：一、写出下列动词的现在分词形式：look_____ do_______ study_______ play______ read_____take_____ make_____ come_______ have_____ use______let_______ put_______ swim______ hit_______ run______按要求完成句子：I_____ _______ (fly) a kite now.He_____ ________(read) a book now.Look, she_____ _________(swim).Listen, the girls _____ ______(sing)a song.What are they doing? They _____ _______(make)a kite.Some birds ______ _____________(fly)in the sky.My friend ______ ______(listen) music now.二、按要求写句子：1. The boy is playing basketball.否定句：____________________________一般疑问句：_________________________肯定回答：__________________________否定回答：__________________________2. They are singing in the classroom.否定句：____________________________一般疑问句：_________________________肯定回答：__________________________否定回答：__________________________is reading a book.否定句：____________________________一般疑问句：_________________________肯定回答：__________________________否定回答：__________________________are playing games.否定句：____________________________一般疑问句：_________________________肯定回答：__________________________否定回答：__________________________and Lily are watching TV.否定句：____________________________一般疑问句：_________________________肯定回答：__________________________否定回答：__________________________6.仿照例句造句:Model: read a book--What are you doing?--I'm reading a book.1).watch TV________________2).clean the blackboard________________三.选择1. Look. Lucy is_____ a new bike today.A. jumpingB. runningC. riding D takeing2. The children _____ football.A. is playingB. are playingC. play theD. play a3. They ______TV in the evening. They do their homework.A. are watchingB. can’t watchingC. don’t watchD. don’t watching4. Listen! She____ in the classroom.A. is singingB. sing C .to sing D. is sing5. ______are you eating? I’m eating ______ meat.A. What,someB. Which,anyC. Where,notD. What,a6. Is she ____ something?A. eatB. eatingC. eattingD. eatsdictionary ___,I have looked for it everywhere but still___ it.A. has lost,don’t findB. is missing,don’t findC. has lost,haven’t foundD. is missing,haven’t found.8..Having a computer for personal use is no easy task because technology _______ so rapidly.A. is changingB. has changedC. will have changedD. will change9. The building_______ ,I can’t stand the noise.A. was being builtB. is builtC. is being builtD. builds10. I can’t catch up with the fashion,because the clothes style_______ all the time.A. has changedB. is changedC. is changingD. changed11. It’s six in th e afternoon. The Greens_______ lunch together.A. hasB. are havingC. have hadD. had had12. Don’t make any noise while the students_______ to the class.A. are listeningB. listenedC. have listenedD. had listened13. Jack and Ketty_______ in t he lake. Let’s join them,shall we?A. swimB. have swumC. swamD. are swimming14. Look! The children_______ basketball on the playground.A. playsB. playedC. is playingD. are playing15. The kite_______ high in the sky now. It looks like a big bird.A. has flownB. is flyingC. was flyingD. flewwe all know,the population in the world _______ faster and faster.A. is grownB. is growingC. are grownD. are growing17. To my surprise,he_______ in class.A. is always speakingB. would always speakC. has always been speakingD. does speak always18. I want to know when he _______ for New York tomorrow.A. has leftB. is leavingC. had leftD. has been leaving19. He_______ of how he can do more for the people.A. had always thoughtB. is always thinking always been thought D. thinking always20. Forests _______ and burned at such a speed that they will disappear from the earth in the future.B. are cutC. are being cutD. had been cut五、用现在进行时完成下列句子: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 boy __________ (swim) in the river.。