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课件网) The Present Continuous Tense 现在进行时 What is the boy doing? He is running. What is the man doing? He is sleeping. What are they doing? They are singing. The Present Continuous Tense (现在进行时态) 定义：现在进行时态表示现在正在进行或发生的某 种事情及动作。 构成 ：“主语+be (am, is, are )+v- ing v-ing是动词的现在分词形式，动词be根据 主语人称进行变化。 标志：当句中出现Look/Listen/now或有上下文提 示时用现在进行时。 请仔细观察下面几个进行时态的句子，并总结出动词变为现在分词的规则. 1.I’m doing my homework now. 2.Listen! He is playing the piano. 3.They are dancing in the room. 4.I am writing some words. 5.He is running. 6.She is swimming. 动词现在分词的变化规律 1) 一般情况下，在动词原形后直接加-ing. 如： work—working(工作) do—doing（做） play—playing（玩） 2) 以不发音的字母e结尾的动词，去掉e，再加-ing. 如： dance—dancing（跳舞） come—coming（来） (但动词词尾是字母组合ee的,就不能去掉词尾e，而应直接加- ing。例如:? see－seeing) 3) 重读闭音节单词，如果末尾只有一个辅音字母，则双写这一字母，再加-ing. 如： get—getting(得到) shop—shopping（购物） run—running（跑） swim—swimming （游泳） Let's do some exercises 请说出下列动词的现在分词。 1.help 2.come 3.swim 4.eat 5.give 6. take 7.sit 8. play playing helping coming swimming eating giving taking sitting 现在进行时的句式 1.肯定句： 主语+be(am/is/are)+V-ing+其他 如：I am reading a book. 2.否定句：直接在am/is/are后加not 如：I am writing. I am not writing. 3.一般疑问句及回答：问句，直接把am/is/are提句首，若原句有第一人称，把第一人称变为第二人称。 肯定回答：Yes, 主语+be动词 否定回答：No, 主语+be动词+not 如：You are drawing a pig.(变为一般疑问句，并做肯定回答和否定回答) --Are you drawing a pig? --Yes, I am./No, I'm not. 4.特殊疑问句：对be V-ing提问要用what 格式为：What+am/is/are+主语+V-ing？ --What is the girl doing? --She is reading. --What are they doing? --They are swimming. --Are they swimming? --Yes, they are. 用所给动词的适当形式填空 1)I ___ _____ basketball with my friend now. (play) 2)She ___ _____ to school now . (go) 3)Listen! The bird ___ _____ on the tree. (sing) 4)Look! He ___ _____ on the playground. (run) 5)The dogs ____ _____ in this river. (swim) 6）_____ your father _____(watch) TV now? am playing is going is singing is running are swimming Is watching 学习回顾 1.现在进行时的定义:现在正在进行或发生的动作及事情。 2.现在进行时的构成： 主语+be(am/is/are)+V-ing 3.动词现在分词的变化规律。
