一般现在时讲义及练习题.doc

1、一般现在时1概念：一般现在时表示经常的、习惯性的动作或存在的状态一般现在时表示现在经常反复发生的动作、存在的状态或习惯性的动作的时态。可概括为经常性或习惯性动作；长期存在的特征或状态；普遍真理、客观事实等。2构成：一般现在时的构成主要有两种形式,一般现在时用行为动词的原形，但第三人称单数作主语时，动词的词尾要加-S。： （1）be型：句子的谓语动词只有be（am，is或are）： a肯定句中，只出现be，如： I am a student我是一名学生。 b否定句中，要在be后面加not，如： She isnt a teacher她不是教师。 c一般疑问句，要将be放在句子开头（注意句首字母大写

2、），句尾用问号，答语用Yes，主语+be或No，主语+be+not如： Are you ready？你准备好了吗？ Yes，I am是的，我准备好了。 （No，Im not不，我没准备好。） （2）实义动词型：句中的谓语动词为实义动词（也叫行为动词）： a肯定句中，只出现实义动词，如： I get up in the morning我早晨起床。 b否定句中，要在实义动词前面加do（does）not，do（does）作助动词，本身无意义，常与not缩写成dont（doesnt），如： I dont like vegetables我不喜欢蔬菜。 c一般疑问句，要在句子开头加助动词Do（does），

3、句尾用问号，简略答语用Yes，主语+do（does）或No，主语+do（does）not如： Do you like oranges？你喜欢桔子吗？ Yes，I do是的，我喜欢。 （No，I dont不，我不喜欢。） 3, 一般现在时的用法 1) 经常性或习惯性的动作，常与表示频腮度的时间状语连用。 时间状语： every, sometimes, at, on Sunday often,usually,sometimes,always,every (day等), once/twice,a (week等), on (Sunday等),never,in the (morning等) I leav

4、e home for school at 7 every morning. 2) 客观真理，客观存在，科学事实。 The earth moves around the sun. Shanghai lies in the east of China. Light travels faster than sound.(光传播比声音快) 3) 表示格言或警句中。 Pride goes before a fall. 骄者必败。 注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。例：Columbus proved that the earth is round.4) 表示十分

5、确定会发生(如安排好的事情)或按照时间表进行的事情,用一般现在可以表达将来,句子中可以有将来时间。如：The train for Haikou leaves at 8：00 in the morning.(开往汉口的列车上午8点开车)5) 在时间状语从句中(以when, after, before, while, until, as soon as等引导)和条件状语从句中(以if,unless引导),用一般现在时代替一般将来时,句子可以有将来时间。如：Please ring me up as soon as you arrive in Germany.(你一到德国就给我打电话) / If it

6、 rains tomorrow,we will have to stay at home.(如果明天下雨我们就只好呆在家)6)一般现在时用于倒装句中可以表示正在发生的动作,动词以come, go为主。如：Here comes the bus. (车来了) / There goes the bell.(铃响了)。7) 人的心理活动和感官动作一般用一般现在时而不用现在进行时表达,常见动词有：like, love, hate, dislike, want, wish, hope, think(认为),understand, remember, forget, mean, need, hear, fe

7、el, see. 如：I think it is going to snow.(我想天要下雪了)/ I really hope you can enjoy your stay here.(我真的希望你愉快地呆在这儿)8) 现在时刻的状态、能力、性格、个性。 I dont want so much. Ann Wang writes good English but does not speak well.比较：Now I put the sugar in the cup. I am doing my homework now.第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间

8、动作。再如：Now watch me, I switch on the current and stand back. 第二句中的now是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。一般现在时 - 表达方法主要通过谓语动词的变化和用时间词语来表示，其中最主要的是谓语动词的变化。现在一般时动词变化的规则是：1.如果主语是名词复数和第一人称I、 we ，第二人称单复数you和第三人称复数they时，谓语动词不用做任何变化，即仍然用动词原型表示：We usually go to school at 7:30. 我们通常7:30上学去。goMy parents give ten

9、yuan to my sister every week.我父母每星期给我妹妹十元钱。give2.主语是任何一个单数名词或者是第三人称单数she、he、it时，谓语动词要用单三形式。特别提一点：不可数名词也算作单数处理。3.谓语动词的变化规律是：(1) 在动词后加-s，-es read - reads，write - writes，say - says(2) 以s，x，ch，sh 结尾的词加-es teach - teaches，wash - washes，guess - guesses(3) 以辅音字母+y结尾的词变y为i再加-es try - tries，carry - carries(4

10、) 特殊变化的词be (是) - am, is, areI am ;she/he/it,名词单数都用 is ; we, you, they, 名词复数都用arehave (有) - have, hasI, we, you, they, 名词复数都用have ;she/he/it is, 名词单数都用 has1.I am a student 2. She isnt a teacher Are you ready？ Yes，I am /No，Im not3.I get up in the morning4.I dont like vegetables5.Do you like oranges？ Y

11、es，I do /No，I dont 6.Jack often _ (listen) to the radio.7._you _(brush) your teeth every morning. 8.What(do) he usually (do) after school? 9.Mike sometimes _(go) to the park with his sister.10.How many lessons_your classmate_(have) on Monday? 11.The earth _(move) around the sun. 12.Shanghai _(lie) i

12、n the east of China. 13.Light _(travel) faster than sound.14.Pride _(go) before a fall.15.The train for Haikou _(leave) at 8：00 in the morning.16.Please ring me up as soon as you _(arrive )in Germany. 17.If it _(rain) tomorrow,we will have to stay at home. 写出所给词的第三人称单数形式sitswimreadmakerunwritehavego

13、dowatchcrystudyplaysaywash二、用do或does的适当形式填空1. _ you ride a bike to school? Yes, I _.2. _ your sister like PE? No, she _.3. What_ the students have? They have some pens.4. How_ Linda go to school? She goes to school on foot.5. He _ not speak English. He speaks Chinese.6. _ they watch TV on Sundays? Y

14、es, they _.7. My father and mother _ not read newspapers on Saturday.三、用一般现在时填空1. What _ he _ (have)?He _(have) a toy plane.2. My mother _ not_(like) English. She _(like) Chinese.3. _ you _ (go ) to school by bus?No, I _(go) to school by car.4. Miss Wang _ (swim ) every day.5. I _(like) English. Tom

15、 _(not like) English.6. The moon _ (go) around the earth.7. When _ you _ (go) to school? I _(go) to school at five every day. 四、句型转换1. I go to school by bus. (用He做主语变否定句)_2. Kim plays baseball very well. (变一般疑问句)_3. David doesnt like learning French. （变肯定句）_4. Alan doesnt watch TV on school nights.

16、（变肯定句）_5. We have enough time to do it. (变否定句)_6. Snoopy has a car. （对划线部分提问）_ _7. Do you have a pencil? (把主语改成you)_ 8. They play basketball in the park on Sunday morning.(对划线提问) 一般现在时练习 一用括号内动词的适当形式填空:A. 1. What _ (do) he usually _ (do) after school?2. Danny _(study) English, Chinese, maths, Scienc

17、e and Art at school.3. Mike sometimes _(go) to the park with his sister.4. _ Mike_(read) English every day?5. How many lessons_ your classmates _(have) on Monday?6. What time_ his mother_(do) the housework?7. _you _(brush) your teeth every morning？8. The girl _ (look) beautiful.B.1. He often_ (have)

18、 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 wal

19、k 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. Im staying in bed.16. She_(go) to school from Monday to Friday.17. Liu Tao_(do)

20、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? 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)4. Amy likes playin

21、g 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)三、改错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 dont do her homework on Sundays.