小學一般現(xiàn)在進行時講解及練習簡單基礎

1、現(xiàn)在進行時一、概念現(xiàn)在進行時表示說話時正在進行或發(fā)生的動作,也可表示當前一段時間內(nèi)的活動或現(xiàn)階段正在進行的動作結(jié)構(gòu)：助動詞be ( am / is / are ) +現(xiàn)在分詞.二、 現(xiàn)在分詞的構(gòu)成：1 .大多數(shù)動詞后可在動詞后直接加-ingEg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking2 .如果動詞以-e結(jié)尾,則去掉-e,再加-ing,如 come-coming , have-having , mak

2、e-making,ride-riding,write-writing,take-taking,use-using3 . 如果動詞只有一個元音字母,而其后跟有一個輔音字母時,將此輔音字母雙寫,再加-ing如： hit-hitting,let-letting, put-putting,run-running,sit-sitting 三、句型結(jié)構(gòu)：1.現(xiàn)在進行時的肯定形式、否定形式、疑問形式及其回答,所有變化都體現(xiàn)在助動詞be ( is / am/ are ) 上1)現(xiàn)在進行時的肯定形式：主語 +be(am/ is/are)+doing+其他成分I am singing . They are wri

3、ting .2)現(xiàn)在進行時的否定形式：主語+be(am/ is/are)+not +doing磯他成分I am not singing . They aren t writing .3) 一股疑問句及回答：be(am/ is/are)+主語+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)特殊疑問句及回答：特殊疑問詞+be(am/ is/are)+±語+doing+其他成分What are you doin

4、g ? We are playing 要求就提問內(nèi)容具體回答().2 . 縮寫形式如下:I am-I m You a-r-e-You re He i-s-H e s She-i-s-She sIt is- It s We a-r-eWe re They are-They re3 .說明: 不是所有動詞都能用現(xiàn)在進行時態(tài)的,如：see、 like、 want、 know 等動詞往往都不用進行時態(tài)四用法：1 .表示現(xiàn)在( 指說話人說話時) 正在發(fā)生的事情往往與now,at the moment,just 等副詞連用,以示強調(diào)We are waiting for you. What are you

5、doing? Some one knockisng at the door2 .正在進行著的動作可視為未完成的動作：He s talking to his friends in the classroom.可用 still 一詞強調(diào)動作的持續(xù)性He s still talking to his friends in the classroom.3 . 表示長期的或重復性的動作,說話時動作未必正在進行Mr. Black is writing another article.Don t take that book away. Your father s using it.She is learn

6、ing piano under Mr. Black.4 .現(xiàn)在進行時可用來表示不會長期發(fā)生的動作或情況,或被認為在短期內(nèi)正在進行的動作或存在的情況：What s your brother doing these days? He s studying English at Oxford University.：一、寫出下列動詞的現(xiàn)在分詞形式:look_ do_ study_ play_ read_take_ make_ come_ have_ use_let_ put_ swimhit_run_按要求完成句子：I (fly) a kite now.He(read) a book now.Loo

7、k, 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、按要求寫句子：1 . The boy is playing basketball.否定句： 一般疑問句：肯定回答：否定回答：2 . They are singing in the classroom.否定句： 一般疑問句：肯定回答：否定回答：3 .Mike is reading a book.否定句： 一般疑問句：肯

8、定回答：否定回答：4 .They are playing games.否定句： 一般疑問句：肯定回答：否定回答：5 .Lucy and Lily are watching TV.否定句： 一般疑問句：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 TV2) .clean the blackboard三 .選擇1. Look. Lucy isa new bike today.A. jumping B. running C. riding D takeing2.

9、The children football.A. is playing B. are playing C. play the D. play a3. They TV in the evening. They do their homework.A. are watching B. can t watching C. don t watch D. don t watching4. Listen! Shein the classroom.A. is singing B. sing C .to sing D. is sing5. are you eating? I m eating meat.A.

10、What,some B. Which,any C. Where,not D. What,a6. Is she something?A. eat B. eating C. eatting D. eats7. My dictionary _,I have looked for it everywhere but still_ it.A. has lost,don t finBd. is missing,don t finCd. has lost,haven t founDd. is missing,haven t found.1.1. aving a computer for personal u

11、se is no easy task because technology so rapidly.A. is changing B. has changed C. will have changed D. will change9. The building,I can t stand the noise.A. was being builtB. is builtC. is being built D. builds10. I can t catch up with the fashion,because the clothes styleall the time.A. has changed

12、 B. is changed C. is changing D. changed11. It s six in the afternoon. The Greenslunch together.A. has B. are having C. have had D. had had12. Don t make any noise while the studentsto the class.A. are listening B. listened C. have listenedD. had listened13. Jack and Kettyin the lake. Let s join the

13、m,shall we?A. swim B. have swum C. swam D. are swimming14. Look! The childrenbasketball on the playground.A. plays B. played C. is playing D. are playing15. The kitehigh in the sky now. It looks like a big bird.A. has flown B. is flying C. was flying D. flew16. As we all know,the population in the w

14、orld faster and faster.A. is grown B. is growing C. are grown D. are growing17. To my surprise,hein class.A. is always speaking B. would always speak C. has always been speaking D. does speak always18. I want to know when he for New York tomorrow.A. has left B. is leaving C. had left D. has been lea

15、ving19. Heof how he can do more for the people.A. had always thought B. is always thinking C.has always been thought D. thinking always20. 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五、用現(xiàn)在進行時完成下列句子:1. you(fly) a kite? Yes,2. you(sit) in the boat?3. he(talk) with me?4. We(play) football now.5. Whatyou(do)?6. I(sing) an English song.7. Whathe(mend)?8. He(mend) a car.9. These boys (play) tennis on the pl