小学英语现在进行时教学ppt.ppt

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.Im 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： workworking(工作) dodoing（做） playplaying（玩）,2) 以不发音的字母e结尾的动词，去掉e，再加-ing. 如： dancedancing（跳舞） comecoming（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: seeseeing),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： getgetting(得到) shopshopping（购物） runrunning（跑） swimswimming （游泳）,Lets do some exercise,请说出下列动词的现在分词。 1.help e 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, Im 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。,