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Nomatter happiness or sadness, after a long time it will become a kind of unforgetable experience, so happy everyday.

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一般现在时  

2015-10-09 09:32:16|  分类: 教学反思 |  标签: |举报 |字号 订阅

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一、 定义与讲解   
一般现在时:表示经常性的事情,经常性的动作或一般性事实。   
时间状语:often 经常,usually通常,always 总是,every每个,sometimes 有时,at …在几点钟   
只有在第三人称单数用动词的“三单变化”,其他用动词的原形。   
三单变化:
1.多数在动词后+s     play — plays  like — likes   
(1)直接在动词词尾加-s.   ask---asks     work---works  get---gets      stay---stays   
(2)以字母s, x, ch, sh或o结尾的动词,在词尾直接加-es.   watch---watches   wish---wishes  fix---fixes         do---does   go---goes         pass---passes   
(3)以“辅音字母加 - y”结尾的动词,要先变y为i再加-es.   try---tries     study---studies cry---cries      fly---flies   
2.不规则变化:   be---- is  are    have----has    

二、一般现在时用法   
1. 表示经常性,习惯性,永久性的动作或存在的状态.通常与副词sometimes, often, usually, always, every day (year, month ), once (twice, three times) a day,等时间状语连用。   They usually go to school by bike.   I take the medicine three times a day.   She helps her mother once a week.   Mary’s father is a policeman.   There are 50 students in my class.   
2. 表示客观真理,科学原理,自然现象,等客观事实或格言,谚语等。     The sun rises in the east and sets in the west every day.     The man who has never been to the Great Wall is not a real man.     Tomorrow is Tuesday.   
三、一般现在时的句子转换:   
(1)当句子中有be动词或情态动词时,则把be动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句.    例:①陈述句:She is a student.   疑问句→ Is she a student?    否定句→ She is not a student.   ②陈述句:I can swim.   疑问句→ Can you swim   否定句→ I can not swim.   
(2)   当句子中即没有be动词,也没有情态动词时,则在主语前加助动词do (you,以及复数), does(单数she,he,it)变成问句;在主语后谓语动词前加助动词don’t(I,you,以及复数), doesn’t(单数she,he,it)变成否定句,助动词后的动词要变成动词原形。   例:①陈述句:We get up at 7:00 every morning.   疑问句→Do you get up at 7:00 every morning?   否定句→We don’t get up at 7:00 every morning.   ②陈述句:She has a little brother.    疑问句→ Does she have a little brother?   否定句→ She doesn’t have a little brother.   

(一).用动词的适当形式填空   
1. She _________(go) to school at seven o’clock.   
2. It’s 6  o’clock. They are _________ (eat) supper.   
3. He usually ___________ up at 17:00.(get )   
4. She ___________ (live) in Beijing.   
5. Amy _________ (be) here just now.   
6. _______ (be)there a fly  on the table just now?   
7. My father __________ (watch) TV every evening .   
8. My father _______________ (make) toys these days.   
9.?________ Amy _________ (read) English every day   
10. Chen Jie sometimes _________(go)to the park with her sister.   
(二).选择填空   
1.I want____homework now. 
A. doing     B. to do   C. to do my    D. do my   
2.It's time______.   
A. go to school  B. play games   C. to go home  D. to do my homeworks   
3.______go and help her. 
 A. Let's me   B. Let's us   C. Let's   D. Let's to   
4.Do they have a new car? Yes,_____.   
A .they are   B.they have   C. they don't    D. they do   
5.He often _________ supper at 6:00 in the evening.   
A. have    B. has     c. is having     D. is eating   
6. We _____________ any Chinese classes on Friday.   
A. are having  B. aren’t having  C. don’t have  D. are have   
(三)、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. Wang Kai and Wang li_________ (have) eight lessons this term.   
20. -What day _________ (be) it today?  - It’s Saturday.   
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