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一般现在时基本用法介绍
一般现在时的功能
1.表示事物或人物的特征、状态。如：The sky is blue.天空是蓝色的。
2.表示经常性或习惯性的动作。如：I get up at six every day.我每天六点起床。
3.表示客观现实。如：The earth goes around the sun.地球绕着太阳转。
一般现在时的构成
1.be动词：主语+be(am,is,are)+其它。如：I am a boy.我是一个男孩。
2.行为动词：主语+行为动词(+其它)。如：We study English.我们学习英语。
【注意】当主语为第三人称单数(he, she,it)时，要在动词后加"-s"或"-es"。如：Mary likes Chinese.玛丽喜欢汉语。
一般现在时的变化
1. be动词的变化。
否定句：主语+ be + not +其它。如：He is not a worker.他不是工人。
一般疑问句：Be +主语+其它。如：-Are you a student? -Yes. I am. / No, I"m not.
特殊疑问句：疑问词+一般疑问句。如：Where is my bike?
2.行为动词的变化。
否定句：主语+ don"t( doesn"t ) +动词原形(+其它)。如：I don"t like bread.
当主语为第三人称单数时，要用doesn"t构成否定句。如：He doesn"t often play.
一般疑问句：Do( Does ) +主语+动词原形+其它。如：- Do you often play football? - Yes, I do. / No, I don"t.
当主语为第三人称单数时，要用does构成一般疑问句。如：- Does she go to work by bike? - Yes, she does. / No, she doesn"t.
特殊疑问句：疑问词+一般疑问句。如：How does your father go to work?
3.动词+s的变化规则
1．一般情况下，直接加-s，如：cook-cooks, milk-milks
2．以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes
3．以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies
一般现在时用法专练:
一、 写出下列动词的第三人称单数
drink ________ go ________ stay ________ make ________
look ________ have ________ pass ________ carry ________
come ________ watch ________ plant ________ fly ________
study________ brush ________ do ________ teach ________
二、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 _______(be) ill. I’m staying in bed.
16. She _______(go) to school from Monday to Friday.
17. Liu Tao _______(do) not like PE.
18. The child often _______(watch) TV in the evening.
19. Su Hai and Su Yang _______(have) eight lessons this term.
20. －What day _______(be) it today?
－ It’s Saturday.
三、按照要求改写句子
1. Daniel watches TV every evening.(改为否定句)
___________________________________________________
2. I do my homework every day.(改为一般疑问句，作否定回答)
___________________________________________________
3. She likes milk.(改为一般疑问句，作肯定回答)
___________________________________________________
4. Amy likes playing computer games.(改为一般疑问句，作否定回答)
___________________________________________________
5. We go to school every morning.(改为否定句)
___________________________________________________
6. He speaks English very well.(改为否定句)
___________________________________________________
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)
___________________________________________________
五、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.
___________________________________________________
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