小学英语现在进行时教学ppt.ppt

1、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

2、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：d

3、ancedancing（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 playinghelpingcoming swimming eatinggiving

4、 takingsitting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./N

5、o,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 playingis goingis singing is runningare swimmingIswatching学习回顾学习回顾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-ing3.动词现在分词的变化规律。