一般现在时语法演示教学

1、精品文档般现在时一、一般现在时的定义：表示现在经常性、习惯性、规律性的动作或者现在存在的状态的一种时态。般现在时的用法分类例句1 ）表示现在经常性、习惯性、规律性的动作I get up at six o 'lock every day.I go to school at 7:00 every morning.I ofte n go to school by bike.2）表示主语现在的特征或状态I am a teacher. /You are a stude nt./He is a policema n./She is a doctor. /I am happy. /We are fa

2、mily./Mary is 12 years old.3）表示一般性事实、客观真理或格言The earth moves around the sun. Light travels faster tha n sound The sun is bigger tha n the earth. Failure is the mother of success. Practise makes perfect.4）表示按规定或时间表预计将要发生的动作We are going to Shan ghai, and our pla ne takes off at 8:00.5）当主句为一般将来时态时，在if,

3、as soon as, until, when 等弓丨导的状语从句中用一般现在时代替一般将来时。（主将从现）If it doesn't rain this after noon, we'll have a football match.We will start as soon as you are ready.当一般现在时表示现在经常性、习惯性的动作时常连用的时间状语：1） 表示频度的副词：always, often, usually, sometimes2）on Sun days, on Mon day after noons, every day/week/ mon th

4、/year 等时间状语3）once a year, twice a mon th, three times a week 等表示频度的词组三、一般现在时的构成1) 谓语动词为 be (am ,is ,are)(主语+be+其他)I am a teacher.You are a stude nt.He/She is a doctor.2) 谓语动词为实义动词(主语+do/does+其他)I like En glish. (Ch in ese,Math,Scie nce,History,Geography,Physics,Chemistry,Sociology)Mike likes English

5、. (Chinese,Math,Science,History,Geography,Physics,Chemistry,Sociology)Mike speaks good En glish.I go to school on foot (by school bus,by bus,by bike).Lily goesto school on foot (by school bus,by bus,by bike).Tony ofte n watches TV in the evening.Jack always washes in cold water.Mike studies En glish

6、,Ch in ese,Math at school.Sona has musical tale nt.四、动词第三人称单数变化规则第三人称单数：he/she/it;可数名词单数；不可数名词.（口诀：不是你不是我，并且只有一个）规则动词原形动词第三人称单数形式例句一般情况加-slikelikesLisa likes walking down the streetenjoyenjoysand enjoys the sunshine.以s, x, ch, sh, o结passpassesHe always washes in cold water.尾的动词后加 -eswashwashesTony o

7、ften watches TV in thewatchwatchesevening.fixfixesLily goes to school on foot every day.gogoes以辅音字母加 y结尾的动studystudiesShe studies Chin ese for lea ning more词，去y力口-iescrycriesculture of China.Mike studies English,Chinese,Mathat school.Don ' take any notice for Nina,shealways cries for nothing.特殊形

8、式havehasSona has musical tale nt.五、句型转换精品文档精品文档1、谓语动词为be动词否定：主语 +be+not+其他一般疑问句：be+主语+其他（即将be提到句首）含be动词的一般现在时肯疋句（我用am,你用are, is连着他她它，单数is复数 are,不可数用is）He is 12 years old.否定句（be后加not）He is not 12 years old.一般疑冋句（be提至句首）Is he 12 years old?回答Yes, he is./ No, he isn't.2、谓语动词为实义动词肯定：主语+do/does+其他否定：主

9、语+助动词do/does+not+动词原形+其他疑问：Do/Does+主语+其他回答：肯定： Yes主 语 +do/does.否定：No,主语 +do/does+not.行为动词（主语为非第三人称单数）肯定句I like Jiaxi n.否疋句：动词前加助动词don'tI don ' t like Jiaxin.一般疑问句：句首加助动词DoDo you like Jiaxi n?回答Yes, I do./No, I don't.行为动词（主语为第三人称单数）肯定句Mike likes Jiax in.否疋句：动词前加助动词does n't,有助动动还原Mike

10、doesn ' t like Jiaxin.一般疑问句：句首加助动词DoesDoes Mike like Jiax in?回答Yes, he does./No, he does n't.注意：don '和doesn'之后动词一定要用原形。精品文档精品文档课堂练习：一 句型转换：1. Lucy likes going skati ng with her frien ds.否定句：Lucy does n' t like going skating with her friends.一般疑问句：Does Lucy like going skati ng wit

11、h her friends ?2. His watch costs 300 yua n.(变成一般疑问句并否定回答)Does his watch cost 300 yua n ?No,it doesn' t.二、用所给动词的适当形式填空。1. We often(play) football in the playgro und.2. He(get) up at six o ' clock.3. you(brush) your teeth every morning.4. What (do) he usually(do) after school?5. Danny(study)

12、En glish, Chin ese, Maths, Scie nee and Art at school.6. Mike sometimes(go) to the park with his sister.7. Tom( study ) English, Chinese, Maths, Science and Art at school.8. Mike(read) En glish every day?9. How many less onsyour classmate(have) on Mon day?10. What timehis mother(do) the housework?11

13、. Mike(like) cooki ng.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 Mon day to Friday.17. Liu Tao(do) not like PE.18. The child ofte n(watch) TV in the eve ning.19. Su

14、Hai and Su Yang(have) eight less ons this term.20. What day(be) it today? It' s Saturday.21. He ofte n(have) dinner at home.22. Dan iel and Tommy(be) in Class One.23. We(n ot watch) TV on Mo nday.24. Nick(not go) to the zoo on Sun day.25. They(like) the World Cup.26. What they often (do) on Satu

15、rdays?27. My pare nts(read) n ewspapers every day.28. The girl (teach) us En glish on Sun days.29. She and I(take) a walk together every evening.30. There(be) some water in the bottle.31. What timehis father(do) the work?32.1(get) up at six o ' clock.33. you(brush) your teeth every morning.34. What( do ) he usually( do ) after school?35. How many less onsyour classmates(have) on Mon day?习题答案：I. play 2.gets 3.Do; brush 4.does do 5. studies 6. goes 7.studies 8.Does ;read 9.does ;hav