动词三单讲解及练习题
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动词第三人称单数形式(动词三单)讲解一、什么是第三人称单数?
人称可分为三类:第一人称、第二人称和第三人称
第一人称:I we(我们)
第二人称:you
第三人称:he、she、it、they和人名类(如:Peter、Jane、my father等)
结合以上知识,第三人称单数就是he、she、it和单个的某人,也包括单个的动物、东西等。
二、动词在什么情况下要变成相应的三单形式?
在一般现在时的肯定句中,跟在第三人称单数后面的动词要变成相应的三单形式。
一般现在时态:一般现在时态用于表达经常、反复发生的动作,存在的状态或习惯性的动作。
例如:I watch TV every day(每天). 如果主语是三单,动词要变化:
He watches TV every day.
She watches TV every day.
Jane watches TV every day.
三、动词三单的变化规则
1、一般情况下直接加s,如speak-speaks, like-likes, play-plays
2、以s, x, sh, ch, o 结尾的加es,如wash-washes, go-goes,
do-does, watch-watches
3、以辅音字母+y 结尾的,改y 为i 再加es,如study-studies,try-tries
4、特殊变化,如have-has
四、do,does和don’t,doesn’t 在句子中的用法
否定句:主语+don’t/doesn’t+动词原形+(其他)。如:
I don’t watch TV. 我不看电视。
当主语为第三人称单数时,要用doesn’t 构成否定句。如:
He doesn’t watch TV. 他不看电视。
注意: doesn’t后面用动词原形watch,而不是watches
一般疑问句:Do / Does+主语+动词原形+(其他)。如:
Do you watch TV? 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 watch TV? Yes, she does. / No, she doesn’t.
注意:does引导的三单问句中,动词也要用原形
特殊疑问句:疑问词+一般疑问句。如:
What do you do on Sundays? I watch TV.
What does Lingling have in the afternoon? She has English.
五、动词第三人称单数形式的练习
A、写出下列动词的第三人称单数。
like ________ go _______ do________ ride________ have_______ pass_______ play swim_______
eat______ sleep ________ watch______
B、用括号内动词的适当形式填空。
1.He often ________(have) dinner at home.
2.We _______ (not watch) TV on Mondays.
3.Nick _______ (not go) to the zoo on Sundays.
4.______ they ________(like) meat?
5.Mike _______(like) swimming.
6.They _______(have) the same hobby(爱好).
7.My brother _______(like) reading(阅读).
8.Liu Tao _______(do) not like PE.
9.His sister ________ (cook烹饪) nice food. I _______ (like) eating it very much.
10._______ (do) your father_______ (watch) TV in the evening? No, he_______ (not).
11.Tom usually_______ (play) football after school.
12.I ______ (go ) to school by bus, and he ______(go) to school by bike.
C、选出正确的答案:
1. She (like / likes) to play football.
2. He (like / likes) drinking milk.
3. I (like / likes) to watch TV.
4. We (like / likes) to play badminton.
5. They (like / likes) to sing songs.
6. He (play / plays) table tennis every day(每天).
7. Jane and Linda (play / plays) football every day.
D、把下列句子变为否定句:
1. She likes milk.
2. They go to school on Mondays.
E、把下列句子变为疑问句,并做否定回答。
1.Tom likes swimming.
__________________________________
_________________________
2.Sam and Amy watch TV in the afternoon.