一般现在时
一般现在时的功能
1.表示经常性或习惯性的动作，常与 always，often，usually，every day，sometimes等连用。
如：I get up at six every day.我每天六点起床。
2.表示客观事实。如：The earth goes around the sun.地球绕着太阳转。
3.用在格言或谚语中。如：Knowledge is power.知识就是力量。
一般现在时的构成
1. be动词
陈述句：主语+be(am,is,are)+其它。
如：I am a boy.我是一个男孩。
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
陈述句：主语+行为动词(+其它)。
如：We study English.我们学习英语。
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。
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?
第三人称单数 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
一般现在时练习
一、 写出下列动词的第三人称单数
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)
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2. I do my homework every day.(改为一般疑问句，作否定回答)
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3. She likes milk.(改为一般疑问句，作肯定回答)
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4. Amy likes playing computer games.(改为一般疑问句，作否定回答)
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5. We go to school every morning.(改为否定句)
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6. He speaks English very well.(改为否定句)
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7. I like taking photos in the park.(对划线部分提问)
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8. John comes from Canada.(对划线部分提问)
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9. She is always a good student.(改为一般疑问句，作否定回答)
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10.like going skating.(改为否定句)
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