小学四大时态的综合练习基础知识概念结构时间状语否定和一般疑问句一般现在时表示经常、反复发生的动作或者行为及目前的某种状况，还可以用来表示某个事情的特点和性质。

is/am/are动词原形/动词单数第三人称have/hasoften，usually，always，never，sometimes，every week，once a week，on Sundays等主语＋am/is/are ＋not ＋……主语＋don’t/doesn’t ＋动词原形＋……Am/Is/Are＋主语＋……？Do/Does ＋主语＋动词＋……？一般过去表示过去某个时间里发生的动作或者状态，过去习惯性经常性的was/were动词过去时hadago，yesterday，the daybeforeyesterday，lastweek/year/m主语＋was/were＋not＋....... 主语＋didn’t＋动词原形＋.......Was/Were ＋主语＋......？时动作或者状态。

onth/nigh，in 1989，just now，atthe age oftwelve，oneday，longlong ago 等Did＋主语＋谓语动词＋......？一般将来时表示将来某个时间里发生的动作或者状态，或者将来某一段时间经常发生的动作或者状态。

will/shall＋动词原形is/am/aregoingto ＋动词原形tomorrow，nextweek/month/year，in thefuture等主语＋won’t ＋动词原形＋...... 主语＋isn’t/aren’t +going to＋动词原形＋......Will/Shall ＋主语＋动词原形＋......？Am/Is/Are ＋主语＋going to＋谓语动词＋......？现表示说话is/ now，at this 主语＋在进行时时正在发生的动作，或现阶段进行的动作，但说话时不一定正在进行。

am/are＋现在分词(v-ing)time，atpresent，these days等am/is/are +not＋现在分词＋......Am/Is/Are ＋主语＋现在分词＋......？课内练习与训练一、用单词的正确形式填空：1.Mike _________ (do) his homework every day.2.There __________(be) some water in the glass.3.We like ________ (play) basketball after class.4. I like singing. I often _________(listen) to the music in the evening.5. My grandma_________(watch) TV every day.1. ____Alice often play the piano. No, she _____.A. Do; doB. Does; doesC. Does; doesn’t2. ___ your penfriend __ in Beijing?A. Do; liveB. Do; livesC. Does; live3. Tom and Mike __ very excited, they will take a trip.A. isB. areC. am4. I like ________ very much. What about you?A. danceB. dancedC. dancing5. I can’t find my pen. Let me __.A. go and ask herB. go and ask hersC. go and ask she6. Fangfang is a good student. She ____maths.A. does good atB. well do itC. is good at7. The kite ____ a bird.A. look likeB. is lookingC. looks like8. Bill and I ___ good friends.A. isB. areC. am9. Sandy often ___ his homework on Sundays .A. doB. doesC. did10. What do you usually do on the weekend? I __________.A. went swimmingB. go swimmingC. visited grandparents11. What do you usually do on your holiday?A. saw elephantsB. sing and danceC.took picture12. I ____ a student. I go to school ____bus every day.A. is; byB. am; onC. am; by13. I ____ a brother. She ____ a sister.A. have; hasB. has; hasC. have; have14. You ____ a student. He ____ a teacher.A. is; isB. are; isC. are; are15. He always _____ football games.A. watchesB. watchC. doesn’t16. My best friend _____ shells.A. collectsB. collectC. often17. She does n’t _____ listening to the music.A. oftenB. likeC. likes18. My mother and I ___ always watch romantic films.A. doesn’tB. don’tC. do19. ---When _____ he get home on Friday?----He gets home at four on Friday.A. DoB. doesC. did20. Summer _________ spring.A. comes afterB. comes ines before二、用单词的适当形式填空：1. look! Chen Jie and Mike are ___________（sing）now.2. The small bear is ________ (climb) the tree.3. Mike is ________ (draw) picture.4. She is ________ (do) the dishes.5. My brother is ________ (make) kites.6. My father is ________ (read) a newspaper in living room.7. Ted is __________(answer) the phone.8. My uncle is ________ (drive) a car.9. The students are ________(listen) to their teacher carefully.10. Chen Jie is _________(wash) clothes.11. His sister is ________ (write) an e-mail.12. We are __________(clean) the classroom now.13. I’m ________(work) on my computer.14. They are _________(play) basketball.15. The tiger is ________(walk).16. The elephant is _________(drink) water with its trunk.17. The monkeys are _________ (swing).18. Peter is ________(take) pictures.19. They are ________（take）up the apples.20. We are ________(catch) butterflies)三、选择正确答案1. Every one ____ to their teacher in the classroom.A. are listeningB. is listeningC. listen2. They are singing and ___ together at the party now.A. danceB. DancedC. dancing3. Listen! The birds ____.A. is singingB. are singC. are singing4. Look! The kite ___ in the sky.A. flyB. fliesC. is flying5. They ____ riding a forse.A. isB. areC. am6. Kate ____ playing chess.A. amB. IsC. are7. Are you washing clothes？A. Yes, you areB. Yes, I amC. No, I am8. Is he ____ TV？Yes, he is.A. WatchB. watchingC. not9. ____ they taking pictures.? Yes, they are.A. AmB. BeC. Are10. It’s 10 o’clock. Ben _____ TV in the bedroom.A. WatchB. is watchingC. watches1. ________ you ________(water) the flowers yesterday.2. Su Hai _________(go) for a walk last Sunday.3. Mike didn’t ________(finish) his homework yesterday.4. I _______ (pick) apples on the tree last month.5. I _______(is) ten years old last year. On that day, I _______(blow) the candles out.6. There ________(are) five books on the desk a moment ago.7. They ________(sweep) the floor just now.8. I _________ (meet) Miss White the day before yesterday.10. I _______ (wash) clothes last weekend.11. What did you you do on your holiday? I ________ (go) swimming.三、选择正确的答案。