现在进行时讲解

讲解现在进行时的语法结构1、谓语构成：be(am/is/are)＋v-ing（动词的现在分词）【注意】be动词要与主语的人称和数保持一致。如：I’mwatchingTVnow.我现在正在看电视。They’replayingfootball.他们正在踢足球。2、现在分词的构成。（1）一般情况下在动词词尾加ing。go→goingask（问，询问）→askinglook→looking（2）以不发音的e结尾的动词，去掉e加ing。have→havingtake→takingmake（做，制造）→makingwrite（写）→writing（3）以一个辅音字母结尾的重读闭音节，双写最后一个字母，再加-ing。get→gettingsit（坐）→sittingput（放）→puttingrun（跑）→runningswim→swimmingbegin（开始）→beginningshop→shopping(4)特殊形式lie-lyingdie-dying五、完成下列句子的否定句和一般疑问句的转换Heisrunning.他正在跑。Thestudentsarecleaningtheroomnow.Wearesittinginthelivingroom.六、习题1.Look!There_____(be)alotofpeopleoverthere.What_______they__________(do)now?2.—What__________yourmother__________(do)?—Sheisateacher.3.It__________(rain)heavilyoutsidenow.Youmuststayathome.4.Don’tsing.Thebaby__________(sleep).5.Mybrother__________(notlike)playingbasketball,buthe______(like)playingfootball.6.—What_________youusually_________(do)onSunday?—Iusually_________(stay)athomeand_________(do)myhomework.7.Listen!Thegirls_________(sing)inthenextroom.8.Mysister_________(want)tobeateacher.9.It’sseveno’clocknow.TheGreens_________(have)supper.10.Heoften_________(swim)onSundays.Look!He_________(swim)atthepool.