般现在时基本知识一：一般现在时：表示经常性的事情。

时间状语：often经常，usually 通常,always 总是， every 每个,sometimes 有时， at …在几点钟只有第三人称单数用动词三单，其余动词均用原形三单变化：多数在动词后加 s play — plays like — likes 以 s, x, sh , ch , o 结尾的动词力口 es go — goes wash-washes 以辅音字母力口 y 结尾，把 y 改 i 再加 es fly—flies二：基本结构：动词原形(如主语为第三人称单数，动词上要改为第三人称单数形式)三：否定形式：am/is/are+not;此时态的谓语动词若为行为动词，则在其前加don't,如主语为第三人称单数，则用 does n't，同时还原行为动词。

四：一般疑问句：把be动词放于句首；用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。

五：但是，动词to be和to have的一般现在时的形式特殊如下：一般动词的词形变化To be的词形变化To have的词形变化I know it I am a stude nt I have a pen.You know it. You are a stude nt You have a penHe (she) knows it. He (she) is a stude nt. He (she)has a pen.We (you,they) know it. We (you,they) are stude nts. We(you,they) have pens.六：习题及部分答案一、写出下列动词的第三人称单数talk forget _________ hope _______ s top _____ perform _____ play ______ s ay ______buy ______ w orry _____ fly _____ study _______ like ______ m ake _____take ______love ______ recite ______ become ________ come _______ drive ______shine _______leave ____ w ake ________ r ide ______ write ______ hike _____ give ___see ______ s wim ______ stop ______ s hop_______ plan ______ g et ______sit ______ l et ______cut _______ run ______ forget ______ begin ______ wash _____ watch_finish ____ teach ____ fish _______ r each _______ go ______ do _____ 二、用括号动词的适当形式填空。

1. He ofte n ______ (have) dinner at home. (答案：has)2. Da niel and Tommy _______ (be) in Class One. (答案：are)3. We________ (n ot watch) TV on Mo nday. (答案: doesn ' t watch )4. Nick ______ (not go) to the zoo on Sun day. (答案: doesn ' t go )5. ______ t hey ________ (like) the World Cup? (答案：Do like )6. What ________ they ofte n _____ (do) on Saturdays?(答案：do do )7. ______ your pare nts ______ (read) n ewspapers every day? (答案:Do read )8. The girl ______ (teach) us En glish on Sun days. (答案: teaches )9. She and I ________ (take) a walk together every eve ning.(答案:take )10. There _________ (be) some water in the bottle. (答案：is)11. Mike _______ (like) cook in g. (答案：likes )12. They _______ (have) the same hobby. (答案: have)13. My aunt _______ (look) after her baby carefully. (答案: look/is looking )14. You always ________ (do) your homework well.(答案：do )15. I _______ (be) ill. I ' m staying in bed. (答案：am )16. She ________ (go) to school from Mon day to Friday.(答案：goes )17. Liu Tao _______ (do) not like PE. （答案:does )18. The child ofte n ____ (watch) TV in the eve ning.（答案： watches )19. Su Hai and Su Yang ________(have) eight less ons this term. (答案：have )20. — What day ______ (be) it today? — It' s Saturday.（答案：is）21 We ofte n __________ (play) in the playgrou nd. (答案: play )22. He _________ (get) up at six o'clock. (答案：gets )23. _______ you ____________ (brush) your teeth every morning?(答案：Do brush )24. What ________ (do) he usually _______ (do) after school?(答案：does do )25. Danny _____________ (study) En glish, Chin ese, math, scie nee and art at school. (答案： studies )26. Mike sometimes ___________(go) to the park with his sister. (答案：goes )27. At eight at n ight, she ________ (watch) TV with herparents. (答案：watches )28. _______ Mike ___________ (read) En glish every day?(答案：Does read )29. How many less ons _________ y our classmate _________ (have) on Mon day? (答案：does have )3O.What time _________ his mother __________ （do） the housework? （答案：does do ）三、按照要求改写句子1. Daniel watches TV every evening.（改为否定句）Daniel does n't watche TV every eve ning.2.1 do my homework every day.（改为一般疑问句，并作否定回答）Do you do your homework every day?NO.I don ' t.3. She likes milk.（改为一般疑问句，并作肯定回答）4. Amy likes playi ng computer games.（改为一般疑问句，并作否定回答）5. We go to school every morning.（改为否定句）We don' t go to school every morning6. He speaks English very well.（改为否定句）He does n't speak En glish very well.7. I like taking photos in the park.（对划线部分提问）8. John comes from Canada.（对划线部分提问）9. She is always a good student.（改为一般疑问句，作否定回答）____________________________________________________________ 10. Simon and Dani el like going skat in g.（改为否定句）11. Do you often play football after school?肯定回答）12. I have many books. （改为否定句）（改为否定句）13. Gao Shan's sister likes playing tabletennis.14. She lives in a small tow n n ear New York.（改为一般疑问句）15. I watch TV every day. （改为一般疑问句）16. David has got a goal. （改为一般疑问句）17. We have four lesso ns. （改为否定句）18. Nancy does n't run fast. （改为肯定句）19. My dog runs fast.一般疑问句：__________________20. Mike has two letters for him.一般疑问句：_________________否定句：________21. I usually play football on Friday after noon.否定句：________________一般疑问句：_____________划线提问______________________22. Sun Yang usually washes some clothes on Saturday. 否定句: ______________一般疑问句：_________________划线提问：____________23. Mingming usually waters the flowers every day.否定句: _________________一般疑问句：_____________划线提问______________24. Tom does his homework at home.否定句: _______________一般疑问句：____________四、改错（划出错误的地方，将正确的写在横线上）1. Is your brother speak En glish?（答案：ls---Does ）2. Does he likes going fish ing?（答案:likes---like ）3. He likes play games after class.（答案：play---playing ）4. Mr. Wu teachs us En glish.（答案：teachs---teaches ）5. She don ' t do her homework on Sun days.（答案：don ' t --- doesn ' t）一般过去时知识点一：一般过去时由动词的过去式表示，动词 be有was, were两个过去式，was 用于第一、三人称单数，were用于其他情况。