国外的第一季度是哪几个月（你到底了解多少）

一般现在时基本用法介绍：

【No. 1】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.我天天六点起床。

3.表示客观现实。如：The earth goes around the sun.地球绕着太阳转。

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, she,it)时，要在动词后加"-s"或"-es"。

如：Mary likes Chinese.玛丽喜欢汉语。

【No. 2】一般现在时的变化

1. be动词的变化。

否定句：主语＋be not＋其它。 如：He is not a worker.他不是工人。

一般疑问句：Be＋主语＋其它。 如：-Are you a student? -Yes. I am. / No, I'm not.

非凡疑问句：疑问词＋一般疑问句。如：Where is my bike?

2.行为动词的变化。

否定句：主语＋don't( doesn't )＋ 动词原形( 其它)。如：I don't like bread.

当主语为第三人称单数时，要用doesn't构成否定句。如：He doesn't often play.

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 don't.

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 doesn't.

动词 s的变化规则:

1．一般情况下，直接加-s，如：cook-cooks, milk-milks

2．以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes

3．以“辅音字母 y”结尾，变y为i, 再加-es，如：study-studies

一般现在时用法专练:

一、写出下列动词的第三人称单数

drink ________ go _______ stay ________ make ________

look _________ have_______ pass_______ carry ________

come________ watch______ plant_______ fly _________

study_______ brush________ do_________ teach_______

wash_______

二、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. Su Hai and Su Yang _______(have) eight lessons this term.

20. －What day _______(be) it today?

－ It’s Saturday

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