(完整版)一般现在时和一般过去时

一般现在时讲解及练习

1、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+名词每个，sometime s 有时，once a week ,on Sundays ,if 的从句at …在几点钟

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.

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）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 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 play —plays

2.不规则变化：be---- is are have----has do---does go---goes

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变成否定句陈述句She is a student.疑问句Is she a student? 否定句She is not a student.

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。

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.

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.

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 _________ (listen) to the English songs twice a day ,

16 Tom ____ (go) to school from Monday to Friday.

17. Liu Tao _________ (do not ) like PE.

18. The child often _________ (watch) TV in the evening. 21. We often___________(play) in the playgound.