三种时态的使用及句型转换.doc

时态名称 时态含义 动词形式 时态提示词 一般现在时 表示经常性、反复性的动作或长期的状态 用原形 第三人称单数动词加s或es。 always, usually, often, sometimes,seldom,never, every词组等或根据句意判断。 现在进行时 表示动作正在进行 be+Ving look,see,listen, hear,now等或根据句意判断。 一般将来时 表示动作将要发生 Ge going to+ V原形 Will+V原形 tomorrow, next词组等或根据句意判断。 （一） 一般现在时基本用法介绍。　　 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。　　 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, Im not. 　 　 2.行为动词的变化。否定句：主语+ dont( doesnt ) +动词原形(+其它)。 如：I dont like bread. 　 当主语为第三人称单数时，要用doesnt构成否定句。如：He doesnt 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 dont. 　　 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 doesnt. 　　 （二）练习1.? I am a teacher. （变成否定句2.? You are student.? (变成一般疑问句)3.? We have math class on Tuesday. (变成一般疑问句)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