一.概念：表达现在正在做某事。(标志词：now 现在, look 看, listen 听, at present 目前at the moment 此刻，right now 立刻 二．基本结构： a.肯定句: 主语+be（即am is are） +v-ing+其它. 如: I am reading a book. b.否定句：直接在be 后加not. 如：I am writing. I am not writing. c.一般疑问句及回答:问句,直接把be 提前,肯定回答:Yes,主语 +be 否定回答: No,主语+be+not -----Are you drawing ?-----Yes,I am./No, I’m not 三、规则动词变化规律： 一般情况下，动词后直接加－ing working, buying, visiting, talking, saying 以不发音 e 结尾动词，去掉 e，然后加－ing taking, having, using, driving, writing, practicing 以辅音字母+元音字母+辅音字母结尾的重读闭音节，双写末尾辅音字母，然后加－ing stopping, shopping, sitting, getting running swimming 四、达标训练 I.用所给动词的适当形式填空. 1.Look! The cat____________(run)up the tree. 2.The twins__________(have)breakfast. 3.----___he ________(clean) the blackboard? ----No,he isn’t. 4.Tom__________(play)the piano in the room.Please ask him to come here. 5.Listen! They____________(sing)in the classroom. 6. My parents _______（watch）TV now. 7. Look. Three boys _______（run）. 8. What _______ your mother _______（do）now? 9. _______ your dog _______ now?（sleep） 10. _______ you _______（listen）to music? Yes, I am. 11. Look, Miss Chen _______ football.（play） 12. Now Class 3 and Class 4_______（have）a test. 13. Listen, someone _______（sing）in the classroom 14. ——Where is Zhang Yan? ——She _______（talk）with her teacher in the teacher’s office. II．汉译英 1.我们正在看电视 ._______________________________________________________________ 2.他们正在打扫教室. ____________________________________________________________ 3.汤姆正在吃早饭. ______________________________________________________________ 4.那对堂兄弟正在睡觉. __________________________________________________________ 5...
