现在进行时（unit1&unit5）一．意义——当表示现在正在进行的动作或正在发生的事。二．:be(am,is,are)+动词现在分词-ing形式肯定句：主语+be+现在分词V-ing(+其他)eg:Thechildrenareplayinginthepark.否定句：主语+be+not+动词-ing+其他.eg:Thechildrenarenotplayinginthepark.一般疑问句：Be+主语+动词-ing+其他?eg:Arethechildrenplayinginthepark?Yes,theyare./No,theyarenot.特殊疑问句：特殊疑问词+be+主语+动词-ing+其他?eg:Whataretheydoingnow?三.现在分词的构成：(1)一般在动词末尾直接加ing,如：play→playingsleep→sleepinglook→lookingthrow→throwingbark→barkinglisten→listeningclimb→climbingcry→cryingcall→callingwash→washingeat→eatingbrush→brushingdrink→drinkingcomb→combingclean→cleaninggo→goingdo→doingrain→rainingtalk→talkinggrow→growingopen→openingsing→singingeat→eatingwalk→walking(2)以不发音字母e结尾的动词，先去掉e,再加ing，如：bite→bitingwrite→writinghave→havingdance→dancing(3)以重读闭音节结尾的动词，中间只有一个元音字母，词尾只有一个辅音字母，应双写末尾的辅音字母，再加ing,如：sittingrunningswimmingshopping四.时间标志——now，句前的look,listen现在进行时专项练习：一、写出下列动词的现在分词：play________run__________swim________eat__________go_________write________sit___________read________have_________washsleep________look_________throw________bark________listen_________climb________bite_______cry_________cleancall_________sit________shop_________brushdrinkcomb二、用所给的动词的正确形式填空：1.Thechildren__________________(play)intheparknow.2.Lingling_______________(sit)onaswingnow.3.Mymother_________________(sit)onabenchnow.4.What_____you______(do)now?5.Look.He_______________(sleep).6.Thedog____________(look)atthechildrennow.7.Look!Mingming________________(throw)stonesatthedog.8.Whatisourgranddaughterdoing?She_________(drink)water.9.It’s5o’clocknow.We_____________(have)suppernow.10.______Helen____________(wash)clothes?Yes,sheis.三、句型转换：1.Theyaredoinghousework.(分别改成一般疑问句和否定句)__________________________________________________________________________________________________________________________2．Thestudentsarecleaningtheclassroom.(改一般疑问句并作肯定和否定回答)__________________________________________________________________________________________________________________________________3．I’mplayingthefootballintheplayground.(对划线部分进行提问)_________________________________________________________________4．Tomislistening.(改为否定句)_________________________________________________________________一般现在时（unit2）一．意义1.表示事物或人物的特征、状态。如：Theskyisblue.天空是蓝色的。2.表示经常性或习惯性的动作。如：Igetupatsixeveryday.我每天六点起床。3.表示客观现实。如：Theearthgoesaroundthesun.地球绕着太阳转。二.构成及变化1.be动词的变化。肯定句：主语+be(am,is,are)+其它。如：Iamaboy.我是一个男孩。否定句：主语+be+not+其它。如：Heisnotaworker.他不是工人。一般疑问句:Be+主语+其它。如：-Areyouastudent?-Yes.Iam./No,I'mnot.特殊疑问句：疑问词+一般疑问句。如：Whereismybike?2.行为动词的变化。①当主语为第一，二人称及复数时，助动词为do肯定句：主语+动词原形(+其它)。如：Weoftenplaybasketballafterschool.否定句：主语+don't+动词原形(+其它)。如：wedon’tplaybasketballafterschool.一般疑问句：Do+主语+动词原形+其它?如：Doyouoftenplaybasketballafterschooll?Yes,wedo./No,wedon't.特殊疑问句：疑问词+以do开头的一般疑问句?如：Whatdoyouoftendoafterschool?②当主语为第三人...
