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1、小学英语时态之—现在进行时现在进行时1、定义:现在进行时,用来表示正在进行或发生的动作。2、结构:主语+be(am,is,are)+动词ing3、标志词:(现场直播、正在发生)now,look,listen等。现在进行时(be)am、is、are的用法1.am与主语I连用。2.is用于主语是第三人称单数(it,she,he或人名)。3.are用于主语是we,you,或第三人称复数。口诀:我用am,你用are,is用在他她它。单数名词用is,复数名词就用are。现在分词动词原形加ing的变化规则:1
2、、一般情况下,直接加ing.如:cook—cooking,jump—jumping,read—reading,sleep—sleeping,listen—listening,stand—standing,sing—singing3、以重读闭音节结尾的动词(末尾是一个元音字母(a、e、i、o、u)和一个辅音字母),双写末尾的辅音字母,再加ing,如:run—running,swim—swimming,get—gettingstop--stopping,shop--shopping2、以不发音的e结尾
3、,去e加ing,如:make—making,write—writing,have—having,skate—skating,dance—dancing,come--coming现在进行时标记现在进行时的句子中常有now,或在句首常出现look,listen等提示词。Heisplayingbasketballnow.Listen!Lucyissingingintheroom.练习:1.MrZheng(read)abooknow.2.Therabbits(jump)now.3.Look!TomandJ
4、ohn(swim).4.Mybrother(make)akiteinhisroomnow.5.Look!Thebus(stop).6.We(have)anEnglishclassnow.7.Listen!Someone(come).8.He(do)thehomeworknow.isreadingarejumpingareswimmingismakingisstoppingarehaving结构:主语+be(am,is,are)+动词ingiscomingisdoing2.否定句:直接在am/is/
5、are后加not,(isn’t,aren’t)(am与not没有缩写)如:Iamwriting.Iamnotwriting.现在进行时的句式1.肯定句:主语+be(am,is,are)+动词ing。如:Iamreading.主语be动词ing3.一般疑问句及回答:一般疑问句,直接把am/is/are提句首肯定回答:Yes,主语+be.否定回答:No,主语+be+not.如:Youarewritingwords.一般疑问句:肯定回答:否定回答:Areyouwritingwords?Yes,Iam.I
6、’mNo,Iamnot.I’mnotHeisplayingbasketball.Isheplayingbasketball?Yes,heis./No,heisn’t.Theyareswimming.Aretheyswimming?Yes,theyare./No,theyaren’t.练习4、现在进行时的特殊疑问句的基本结构为:特殊疑问词+一般疑问句What+be动词+主语+doing?WhatisLucydoing?What+be动词+主语+doing?Whatisshedoing?Sheiswa
7、teringtheflowers.Whatishedoing?Heisplayingthepiano.现在进行时练习句型转换按要求改写句子1.Theboyisplayingbasketball.对划线部分提问:____________________________否定句:____________________________________一般疑问句:________________________肯定回答:________________否定回答:________________Theboy
8、isn’tplayingbasketball.Whatistheboydoing?Istheboyplayingbasketball?Yes,heis.No,heisn’t.现在进行时练习2.Theyaresingingintheclassroom.否定句:__________________________一般疑问句________________________肯定回答:___________否定回答:___________对“aresinging”提问:___________