一般现在时基本知识
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结尾的动词加es go—goes wash--washes 以辅音字母加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doesn'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 student I have a pen. You know it. You are a student You have a pen
He (she) knows it. He (she) is a student. He (she)has a pen. We (you,they) know it. We (you,they) are students. 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______stop______perform______p lay______ say______
buy______worry______fly______study_______like_______make______ take______
love_______recite_______become_______come_______drive_______ shine_______
leave_____wake_______ride_______write_______hike______give______
see______swim______stop______shop_______plan______get_______ sit_______let_______
cut_______run_______forget_______begin_______wash_____watch_______
finish______teach_____fish_______reach_______go_______do_____
二、用括号内动词的适当形式填空。
1. He often ________(have) dinner at home. （答案：has）
2. Daniel and Tommy _______(be) in Class One. （答案：are）
3. We _______(not watch) TV on Monday. （答案：doesn’t watch）
4. Nick _______(not go) to the zoo on Sunday. （答案：doesn’t go）
5. ______ they ________(like) the World Cup? （答案：Do like）
6. What _______they often _______(do) on Saturdays? （答案：do do）
7. _______ your parents _______(read) newspapers every day? （答案：Do read）
8. The girl _______(teach) us English on Sundays. （答案： teaches）
9. She and I ________(take) a walk together every evening. （答案：take）
10. There ________(be) some water in the bottle. （答案： is）
11. Mike _______(like) cooking. （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 Monday to Friday. （答案：goes）
17. Liu Tao _______(do) not like PE. （答案：does）
18. The child often _______(watch) TV in the evening. （答案： watches）
19. Su Hai and Su Yang _______(have) eight lessons this term. （答案： have）
20. －What day _______(be) it today? － It’s Saturday. （答案： is）
21 We often ___________ (play) in the playground. （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) English, Chinese, math, science and art at school.（答案： studies）
26. Mike sometimes __________ (go) to the park with his sister. （答案： goes）
27. At eight at night, she ____________ (watch) TV with her parents. （答案：watches）
28. ________ Mike _________ (read) English every day? （答案：Does read）
29. How many lessons _________ your classmate _________ (have) on Monday? （答案：does have）
30.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 doesn't watche TV every evening.
2. I 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 playing 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 morning 6. He speaks English very well.(改为否定句) He doesn't speak English 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 Daniel like going skating.(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） _________________________