一般现在时讲解及练习1、定义与讲解一般现在时：表示经常性的事情，经常性的动作或一般性事实。
时间状语：often 经常，usually通常，always 总是，every+名词每个，sometime s 有时，once a week ,on Sundays ,if 的从句at …在几点钟2. 表示客观真理，科学原理，自然现象，等客观事实或格言，谚语等。
The sun rises in the east and sets in the west every day.The man who has never been to the Great Wall is not a real man.Tomorrow is Tuesday.只有在第三人称单数用动词的“三单变化”，其他用动词的原形。
三单变化：（1）直接在动词词尾加-s.ask---asks work---works get---gets stay---stays（2）以字母s, x, ch, sh或o结尾的动词，在词尾直接加-es.watch---watches wish---wishes fix---fixes pass---passes（3）以“辅音字母加- y”结尾的动词，要先变y为i再加-es.try---tries study---studies cry---cries fly---flies play —plays2.不规则变化：be---- is are have----has do---does go---goes三、一般现在时的句子转换：（1）当句子中有be动词或情态动词时，则把be 动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句陈述句She is a student.疑问句Is she a student? 否定句She is not a student.陈述句：I can swim.疑问句→ Can you swim否定句→ I can not swim.（2）当句子中即没有be动词，也没有情态动词时，则在主语前加助动词do (you,以及复数), does（单数she,he,it）变成问句；在主语后谓语动词前加助动词don’t（I, you,以及复数), doesn’t（单数she,he,it）变成否定句，助动词后的动词要变成动词原形。
陈述句：We get up at 7:00 every morning.疑问句Do you get up at 7:00 every morning?否定句→We don’t get up at 7:00 every morning.陈述句：She has a little brother.疑问句→ Does she have a little brother?否定句She doesn’t have a little brother.（一）．用动词的适当形式填空1. She _________(go) to school at seven o’clock.3. He usually ___________ up at 17:00.(get )4. She ___________ (live) in Beijing.5. Amy _________ (be) here just now.6. _______ (be)there a fly on the table just now?7. My father __________ (watch) TV every evening .8. My father _______________ (make) toys these days.9．?________ Amy _________ (read) English every day10. Chen Jie sometimes _________(go)to the park with her sister.（二）.选择填空1．I want____homework now. A. doing B. to do C. to do my D. do my 2．It's time______.A. go to schoolB. play gamesC. to go homeD. to do my homeworks 3．______go and help her. A. Let's me B. Let's us C. Let's D. Let's to4．Do they have a new car? Yes,_____.A .they are B.they have C. they don't D. they do5．He often _________ supper at 6:00 in the evening.A. haveB. has c. is having D. is eating6. We _____________ any Chinese classes on Friday.A. are havingB. aren’t havingC. don’t haveD. are have （三）、用括号内动词的适当形式填空。
1. He often _________ (have) dinner at home.2. Daniel and Tommy _________ (be) in Class One.3. We _________ (not watch) TV on Monday.4. Nick_________ (not go) to the zoo on Sunday.5._______ they _________ (like) the World Cup?6. What ____they often_________ (do) on Saturdays?7. your parents _________ (read) newspapers every day.8. The girl _________ (teach) us English on Sundays.9. She and I _________ (take) a walk together every evening.10. There _________ (be) some water in the bottle.11. Mike_________ (like) cooking.12. They _________ (have) the same hobby.13. My aunt _________ (look) after her baby carefully.14. You always _________ (do) your homework well.15. I _________ (listen) to the English songs twice a day ,16 Tom ____ (go) to school from Monday to Friday.17. Liu Tao _________ (do not ) like PE.18. The child often _________ (watch) TV in the evening. 21. We often___________(play) in the playgound.22. He _________(get) up at six o’cl ock.23. __________you _________(brush) your teeth every morning.24. What ________he usually__________ (do) after school?25. Danny usuallly ______(study) English,Chinese ,Science and Art at school.26. Mike sometimes __________(go) to the park with his sister.27. she always __________(watch) TV with his parents.28. ________ Mike________(read) English every day?29. We will go shopping if it____ tomorrow.A don't rain B. didn't rain C.doesn't rain D. isn't rain9. How many lessons_________your classmate________(have) on Monday?10.What time_________his mother_________(do) the housework?1. Do you often play football after school? (肯定回答)2. I have many books. （改为否定句）3. Gao Shan’s sister likes playing table tennis （改为否定句）4. She lives in a small town near New York. （改为一般疑问句）5. I watch TV every day. （改为一般疑问句）6. David has got a goal. （改为一般疑问句）7. We have four lessons.（否定句）8. Nancy doesn’t run fast （肯定句）9. My dog runs fast. 否定句：一般疑问句：10. Mike has two letters for him.一般疑问句：否定句：11. I usually play football on Friday afternoon.否定句:一般疑问13. Mingming usually waters the flowers every day否定一般疑问句:划线提问14. Tom does his homework at home.否定句:一般疑问句:划线提问1.写出下列动词的三单形式go__________ catch_________ brush（刷）_____ wash___________do________ like________ have___________ watch________drink ___________ fly___________ say_______ learn ___________eat___________ read___________ sing___________ buy__________study_______ stay __________ make __________ look ____pass__________ carry ____ come_________ teach_______ buy_________ 3.选择题1. I ________to school at 7:00 in the morning.A. go B. going C. goes2. They ____books every day in the library. A.reads B. read C. reading3. The monkey_____eating bananas very B. likes C. liking4. My father ________to read newspaper after supper every day.A.likeB. likesC. liking5. I like watching TV, but my mother __like it.A. don’t B. doesn’t C. does6. ____your father drink milk every day? A.do B. are C. does8. He said the sun ____in the east and ____in the west.A rose; setB rises; setsC rises, setD rise; sets9.Wang Mei ____ music and often ____ to music.A like; listenB likes; listensC like; are listeningD liking ; listen10. Jenny____ English every evening.A has studyB studiesC studyD studied4.改错(划出错误的地方，将正确的写在横线上)1. Is your brother speak English? __________________2. Does he likes going fishing? __________________3. He likes play games after class. __________________4. Mr. Wu teachs us English. __________________5. She don't do her homework on Sundays. _________________5.把下列句子变成一般疑问句（并作肯定和否定回答）、否定句I don't like cooking.1.My friends like playing soccer.2.They speak English every day.3.Daniel watches TV every evening4.John is from Canada.5.Tom does his homework at home.6.My dog runs fast.7Amy likes playing computer games.8She can play the piano well.一、一般过去时的定义一般过去时表示过去某一时候或某一段时间所发生了的事情或存在的状态。