小学英语现在进行时教学PPT课件

-,1,ThePresentContinuousTense现在进行时,-,2,Whatistheboydoing?,Heisrunning.,-,3,Whatisthemandoing?,Heissleeping.,-,4,Whataretheydoing?,Theyaresinging.,-,5,ThePresentContinuousTense(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-ingv-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。,-,6,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.Imdoingmyhomeworknow.2.Listen!Heisplayingthepiano.3.Theyaredancingintheroom.4.Iamwritingsomewords.5.Heisrunning.6.Sheisswimming.,-,7,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）,-,8,Letsdosomeexercise,请说出下列动词的现在分词。e3.swim4.eat5.give6.take7.sit8.play,playing,helping,coming,swimming,eating,giving,taking,sitting,-,9,现在进行时的句式,1.肯定句：主语+be(am/is/are)+V-ing+其他如：Iamreadingabook.2.否定句：直接在am/is/are后加not如：Iamwriting.Iamnotwriting.,-,10,3.一般疑问句及回答：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：Youaredrawingapig.(变为一般疑问句，并做肯定回答和否定回答)-Areyoudrawingapig?-Yes,Iam./No,Imnot.4.特殊疑问句：对beV-ing提问要用what格式为：What+am/is/are+主语+V-ing？,-,11,-Whatisthegirldoing?,-Sheisreading.,-,12,-Whataretheydoing?,-Theyareswimming.,-Aretheyswimming?,-Yes,theyare.,-,13,用所给动词的适当形式填空,1)I_basketballwithmyfriendnow.(play)2)She_toschoolnow.(go)3)Listen!Thebird_onthetree.(sing)4)Look!He_ontheplayground.(run)5)Thedogs_inthisriver.(swim)6）_yourfather_(watch)TVnow?,amplaying,isgoing,issinging,isrunning,areswimming,Is,watching,-,14,学