1、1小升初专题二：一般现在时讲解一般现在时基本用法介绍一. 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。二. 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。当主语为第三人称单数(he,
2、 she,it) 时，要在动词后加“-s“或“-es“。 如：Mary likes Chinese. 玛丽喜欢汉语。三. 一般现在时的变化1. be 动词的变化。(1) 否定句：主语 + be + not +其它。如：He is not a worker.他不是工人。(2) 一般疑问句： Be +主语+其它。如：-Are you a student? -Yes. I am. / No, Im not.(3) 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。(1) 否定句：主语 + dont( doesnt ) +动词原形(+其它)。如：I dont
3、like bread. 当主语为第三人称单数时，要用 doesnt 构成否定句。如：He doesnt often play.2(2) 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 dont.(3) 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 doesnt.(4)特殊疑问句：疑问词+一般疑问句。如：How does your father go
4、 to work?四动词加 s 的变化规则1.一般情况下，直接加-s, eg, cook-cooks like-likes2.以 s.x.sh.ch.o.结尾，加-es, eg, wash-washes watch-watches go-goes 3.以辅音字母+y 结尾，变 y 为 i,在加-es, eg, study-studies 4.不规则的有，have-has be-am,is are一般现在时用法专练：一、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
5、. 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?37. _ 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) s
6、ome 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. Im staying in bed.16. She _(go) to school from Monday to Friday.17. Liu Tao _(do) not like PE.18. The child often _(w
7、atch) TV in the evening.19. Su Hai and Su Yang _(have) eight lessons lessons this term.20. What day _(be) it today? Its Saturday.二、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) _44. Amy likes playing computer
8、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) _ _三、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 teach us English. _5. She dont do her homework on Sundays. _
