三年级上册英语现在进行时讲解及练习

现在进行时态01概念表示正在发生的事情或动作，常和now，look，listen连用。eg：Wearelisteningtomusicnow.我们现在正在听音乐。Listen!playingthepiano.听！他正在弹钢琴。02结构1．be+动词现在分词（即：动词-ing形式），be+doing是一个整体，不能分开。的变化规则根据现在分词的变化规律来定。03动词现在分词的构成规律1．一般情况下,在动词原形后直接加-ing；eg：work→workingdo→doingplay→playing2．以不发音字母e结尾的动词，先去掉e，再加-ing；eg：dance→dancingcome→coming3．在重读闭音节（即：辅音＋元音＋辅音）的动词中，要先双写末尾的辅音字母，再加-ing；eg：get→gettingrun→runningshop→shoppingswim→swimming4．以ie结尾的重读闭音节词，将ie改成y再加ing。eg：lie→lyingdie→dying04现在进行时的各种句式变化1．否定句方法：直接在be的后面加not。Theyarerunning.→Theyarenotrunning.2．一般疑问句方法：直接把be放在主语的前面，其余位置不变。eg：：Theyarerunning.→Aretheyrunnin?3．特殊疑问句方法：如果就划线部分提问事情或动作时，用What…doing?eg：Theyareswimmingintheseanow.→Whataretheydoingintheseanow?05现在进行时态练习（）1.—Whatareyoudoingnow?—Weare.watchingTVwatcheswatchTVtowatchTV（Look!Thelittleboyintherain.D.runsA.jumpsB.runC.isrunning（）3.Thechildrenareplayground.ontheA.playingB.playC.sleepingD.playsanEnglishclassnow.C.ishavingD.arehaving（）4.WeA.hasB.have（）5.Look!Emmawithhersister.swimsD.isswimmingC.isswimingareswimming（）6.——No,theythegirlsdancing?.Theyarereadingbooks.A.is;aren’tAre;aren’tB.are;aren’tAre;are（）7.—?—Theyareplayingbasketball.A.WhataretheydoingC.HowoldaretheyB.WhoaretheyWherearethey（）8.Listen!Emma.issingingD.runningsleepsswims（）9.Spring.Therearegreenstreesandbeautifulflowers.A.comingB.goingC.comeingD.comes（）10.Tomwithatoycarnow?——No,heisn’t.