行为动词一般现在时的变化

行为动词一般现在时的变化

什么情况下用行为动词的一般现在时呢？当这个动作经常发生或表示习惯性的动作时，通常用一般现在时，它经常与表示频度的时间状语连用，如，当句子中有every day every year ,on Sunday, in the morning ,often, sometimes, usually, at one o’clock,等词时，用一般现在时。

He get s up at 6 o’clock. She usually watch es TV in the evening. Sometimes he go es to school by car. Tom often fl ies a kite on Sunday.

只有第三人称单数动词才要变，其他人称（I, you ,we ,they）则用动词的原形。

一、动词发生变化。在一般现在时的肯定句中，若主语是第三人称单数，实义动词要发生变化，简称：肯定句，主单三，动词变。（特殊注意：若主语不是第三人称单数时，实义动词则不发生变化。）二、要出现助动词。在一般现在时的否定句或疑问句中要出现助动词do或does。若主语是第三人称单数，助动词用does；若主语不是第三人称单数，助动词用do。

特殊注意：

1.在一般疑问句中，助动词要放在句首。

2.在否定句中，助动词要放在主语的后面，实义动词的前面。

3.一般疑问句的回答：肯定回答：Yes, 主语+句首的助动词；否定回答：No，主语+句首的助动词与not 的缩略形式。注意：在一般疑问句的回答时遵循这样的规律，即前面有Yes,后面无not, 前面有No,后

面要有not。这里所说的行为动词,指的是除be动词、情态动词和助动词之外的全部动词。

主语为第三人称单数he, she, it时,词形有变化。当主语是第三人称单数时，行为动词的一般现在时通常有三种变化：

1、多数在动词后加s play—play s like—like s ,read-read s sing-sing s

2、以s，x，sh，ch，o结尾的动词加es go—go es wash--wash es, catch-catch es

2、以辅音字母加y结尾，把y改i再加es fly—fl ies study—stud ies

try-tr ies (这种变化与名词的单数变复数有点相像)

写出下列动词的正确形式：

1、I (go) to school at seven in the morning.

2. Mike ( do) his homework at eight in the evening.

3. His father often ( read) books in the library on Saturday.

4. you often (study ) after school ?Yes , I do.

5. Mike and Tom usually (fly ) kites on Sunday.

6. She (go ) to school by bus every day.

7.We usually (listen ) to the radio in the morning.

8. he usually (listen ) to the music at home?

No, he . 1.We often _(play) in the playground.

9. What (do)—— he usually (do)—— after school?

10. ______ they ________(like) the World Cup?

11. ——Mike ——(read) English every day?

12. How many lessons ---your classmate___(have) on Monday?

13. What time _his mother -- (do) the housework?

14. We _______(not watch) TV on Monday.

15. Nick _______(not go) to the zoo on Sunday.

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______

改写句子

1. Do you often play football after school? (肯定回答)

2. I have many books. （改为否定句）

3. Gao Shan’s sister likes playing table tennis （改为否定句

4. She lives in a small town near New York.（改为一般疑问句）

5. I watch TV every day. （改为一般疑问句）

改错(划出错误的地方，将正确的写在横线上)

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 don’t do her homework on Sundays. ______________