Join in 四年级下 现在进行时讲解(一)

Joinin四年级下现在进行时讲解(一)Joinin四年级下现在进行时讲解(一)/NUMJoinin四年级下现在进行时讲解(一)Joinin四年级下现在进行时讲解(一)一、现在进行时的定义，构成，标志性词语定义：表示现在或现阶段正在进行或发生的动作或存在的状态。构成：由be(am/is/are)+V-ing形式构成标志性词语：nowlooklisten“now”.eg:Iamdoingmyhomeworknow.“look”.eg:Look!Mymotheriswearingagreyhat.“listen”.eg:Listen!Theyarereadingbooks.二、动词现在分词的构成规则1一般情况下直接加ingthinkthinkingsleepsleepingstudystudyingspeakspeakingsaysayingcarrycarrying2以不发音的字母e结尾的单词,去掉字母e，再加ingcomecomingmakemakingleaveleavinghavehavingtaketakingwakewaking3以重读闭音节（重读闭音节即两个辅音中间夹一个元音并且重读的音节）结尾，呈现“辅，元，辅”结构的动词，双写末尾的辅音字母，再加ingstopstoppingsitsittingrunrunningforgetforgettingbeginbeginning这类词还有：cut,get,hit,run,set,spit,stop,swim,beg,drop,fit,nod,dig,regret等。4以ie结尾的动词，把ie改为y，再加ingdiedyinglielyingtie_tying记doing口诀进行时很好记,be加动词-ing;直加双写去哑e,分词构成须仔细;别说be动词无词义,主语和它最亲密;变疑问句提前它,变否定句be后加not莫忘记;何时要用进行时now，look,listen,是标志。趁热打铁：写出下列动词的现在分词形式.1.help_______2.come_____3.swim_______4.eat_____5.give_______6.find_____7.sit_______8.write_____talk_____sleep_____watch_____run______listen______make_____laugh______lie_____cry______sing_____cut______write_____三、现在进行时的用法（1）用来表示说话时正在进行或者发生的动作，例如：eg:Whatareyoudoing?Iamreadingabook.Motheriscookinginthekitchen.妈妈在厨房里煮饭。Whatareyoulookingat?你在看什么？用来表示现阶段正在进行的动作（但说话时不一定在进行），例如：eg:Heisteachingattheschool.WearelearningUnit5thesedays.Isshewritinganovel?她正在写一本小说吗？（3）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eg:Listen!Dannyissingingintheroom.Look!Heisdoinghishomeworknow.(4).用来表示即将发生的动作，一般是指按计划或者安排好要发生的动作。适用于这种情况的动词主要有：go,come,leave,start,arrive等。例如:I’mgoinghomeinhalfanhour.我一个半小时内要回家。Thetrainisarrivingsoon.火车很快就要到达了。I’mcoming.我马上来四、现在进行时的句式变化肯定式结构：主语+be+v-ing+其它.如:Iamreadingabook.Wearerunningnow.否定式结构：主语+be+not+V-ing形式+其他.例如：Theyaren’tdoingtheirhomework.Iamnotwritingmyhomeworknow.一般疑问句式结构：Be+主语+动词-ing形式+其他例如：IsshehavinganEnglishlesson?回答：肯定Yes,sheis.否定:No,sheisn’t.Aretheyrunningnow?Yes,theyare.No,theyaren’t.特殊疑问句式结构：疑问词+be+主语+其他eg:Whatishedoingnow?回答：Heisswimming.一.用所给动词的适当形式填空.1.Look!Thecat____________(run)upthetree.2.Thetwins(双胞胎)___________(have)breakfast.3.___he_________(clean)theblackboardnow?No,heisn’t.4.Tom______________(play)thepianointheroom.Pleaseaskhimtocomehere.5.Listen!They______________(sing)intheclassroom.汉译英1.我们正在上英语课。._________________________________________________.2.他们正在打扫教室._________________________________________________.3.汤姆正在吃早饭._________________________________________________.4.那对双胞胎正在睡觉._________________________________________________.5.男孩子们正在踢足球._________________________________________________.6.她正在弹钢琴。._________________________________________________.7.我们正在看电视。._________________________________________________.8.你们正在听音乐吗?_________________________________________________.二.选择填空.1.Mymotheris_____TV.A.lookingatB.seeingC.readingD.watching2.____you____abook?Yes,Iam.A.Do,readB.Are,readC.Are,readingD.Are,looking3.Kate_____,theotherstudents_____.A.sing,listenB.issinging,islisteningC.sing,arelisteningD.issinging,arelistening4.I___myeraser,butIcan’t______it.A.lookfor,findingB.amfinding,lookforC.amlookingfor,findD.find,lookfor5.KateandI___doing____homeworknow.A.am,theirB.aretheirC.isourD.areour6.Myfatherandmotherare____.A.BusesdriverB.busesdriversC.busdriversD.busdriver7.Theyaretalking____today’snewspaper.A.ToB.withC.ofD.about8.Doyoulike_____onthegrass?A.TositB.sitingC.sittingD.bothAandC9..Thisistheway____ourhair.A.ThatwecombB.tocombC.ofcombingD.alltheabove三.句型转换1.Iamwateringtheflowers.(否定句)2.She’sjumpingnow.(一般疑问句)3.Theboysareplayingcards.(划线提问)Heisdoinghishomework.(复数句)四．改错,把错误的地方下面画上横线，并在后面改出来。1、我的妈妈正在做早饭。Mymotheraremakeingbreakfast.2、我正要和我的朋友去看电影。Iisgoestomovieswithmyfriend.3、他们正在弹吉他吗？Isheplayingtheguitar?4、她不在拉小提琴。Sheisn’playingviolin.5、她们在干什么？正在打篮球。Whatisshedoing?Theyareplayingthebasketball.6、Lucy和Mary正在打排球。LucyandMaryisplayingthevolleyball.五．按要求完成下列句子Iamhavingabirthdayparty.________________________(一般现在时)____________________________tonight(一般将来时)2.Shesingsasongintheroom.___________________________now(现在进行时)_________________________tonight(一般将来时)3.Shewillgotoschool._____________________(现在进行时表示将来时)______________________________(一般现在时)4.Hisfatheriswritingaletterwithapen._______________________________(一般现在时)_______