动词第三人称单数形式（讲义）通用版英语六年级下册

动词第三人称单数形式讲解 1、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 第二人称：you 第三人称：he、she、it、they和人名  称谓类（如：Peter、Jane、my father等） 结合以上知识，第三人称单数就是he、she、it、人名、称谓。 2、动词为什么要变成相应的三单形式？ 在一般现在时中，跟在第三人称单数后面的动词也要变成相应的三单形式，例如： I watch TV every day. 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. 3、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 4、does和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.         Does he watch TV?     Yes,he does./No,I doesn't. 练习题： 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. （参考答案1.has  2.are 3.don't 4.doesn't go 5.Do like  6.do,do 7.Do,read 8.teaches 9.take 10.is ） 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. (参考答案11.likes  12.have  13