Join-in-四年级下-现在进行时讲解(一)

Tomakeeachdaycount!Tomakeeachdaycount!Wherethereisawillthereisaway. Wherethereisawillthereisaway. #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.现在进行时.通常用“now”.eg:Iamdoingmyhomeworknow..现在进行时.通常用“look”.eg:Look!Mymotheriswearingagreyhat..现在进行时.通常用“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ingthinkthinking sleepsleeping studystudyingspeakspeaking saysayingcarrycarrying2以不发音的字母e结尾的单词，去掉字母e，再加ingcomecoming makemaking leaveleaving havehavingtaketaking wakewaking3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ingstopstoppingsitsittingrunrunning forgetforgettingbeginbeginning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ingdiedying lielyingtie_tying记doing□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？(2)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..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..Look!Thecat (run)upthetree..The10血(双胞胎)(have)breakfast.. ___he (clean)theblackboardnow? No,heisn’t..Tom (play)thepianointheroom.Pleaseaskhimtocomehere..Listen!They (sing)intheclassroom.汉译英TOC\o"1-5"\h\z.我们正在上英语课。. ..他们正在打扫教室. ..汤姆正在吃早饭. ..那对双胞胎正在睡觉. ..男孩子们正在踢足球. ..她正在弹钢琴。. ..我们正在看电视。. ..你们正在听音乐吗? .二.选择填空..Mymotheris TV.A.lookingatB.seeingC.readingD.watching. you abook?Yes,Iam.A.Do,readB.Are,readC.Are,readingD.Are,looking.Kate ,theotherstudents .A.sing,listenB.issinging,islisteningC.sing,arelisteningD.issinging,arelistening___myeraser,butIcan’t it.A.lookfor,findingB.amfinding,lookforC.amlookingfor,findD.find,lookfor.KateandI___doing homeworknow.A.am,theirB.aretheirC.isourD.areour.Myfatherandmotherare .A.Busesdriver B.busesdrivers C.busdrivers D.busdriver.Theyaretalking today’snewspaper.A.ToB.withC.ofD.about.Doyoulike onthegrass?A.TositB.sitingC.sittingD.bothAandC..Thisistheway ourhair.A.ThatwecombB.tocombC.ofcombing D.alltheabove三.句型转换amwateringtheflowers.（否定句）he'sjumpingnow.（一般疑问句）.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）.Shesingsasongintheroom. now（现在进行时） toni