行为动词的一般现在时及相应练习

行为动词一般现在时的变化
我们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。

行为动词为数众多,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 dance-dance s cook- cook s look- look s
2、以s，x，sh，ch，o结尾的动词加es
go—go es wash—wash es watch-watch es catch-catch es
do- do es
3、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)
那么，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。

例句：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。

行为动词的一般现在时练习题
班级姓名座号
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.My mother usually (watch) TV plays at home.
5. My cousin sometimes (play ) cards with me.
6. you often (study ) after school ?Yes ,
I do.
7. Mike and Tom usually (fly ) kites on Sunday.
8. They (go) to school by bus every day.
9. She (go ) to school by bus every day.
10.We usually (listen ) to the radio in the morning.
11. He usually (listen ) to the radio in the morning.
12. he usually (listen ) to the music at home? No, he .。