Join in 四年級(jí)下 現(xiàn)在進(jìn)行時(shí)講解(一)

Joinin四年級(jí)下現(xiàn)在進(jìn)行時(shí)講解(一)Joinin四年級(jí)下現(xiàn)在進(jìn)行時(shí)講解(一)/NUMJoinin四年級(jí)下現(xiàn)在進(jìn)行時(shí)講解(一)Joinin四年級(jí)下現(xiàn)在進(jìn)行時(shí)講解(一)一、現(xiàn)在進(jìn)行時(shí)的定義，構(gòu)成，標(biāo)志性詞語(yǔ)定義：表示現(xiàn)在或現(xiàn)階段正在進(jìn)行或發(fā)生的動(dòng)作或存在的狀態(tài)。構(gòu)成：由be(am/is/are)+V-ing形式構(gòu)成標(biāo)志性詞語(yǔ)：nowlooklisten“now”.eg:Iamdoingmyhomeworknow.“l(fā)ook”.eg:Look!Mymotheriswearingagreyhat.“l(fā)isten”.eg:Listen!Theyarereadingbooks.二、動(dòng)詞現(xiàn)在分詞的構(gòu)成規(guī)則1一般情況下直接加ingthinkthinkingsleepsleepingstudystudyingspeakspeakingsaysayingcarrycarrying2以不發(fā)音的字母e結(jié)尾的單詞,去掉字母e，再加ingcomecomingmakemakingleaveleavinghavehavingtaketakingwakewaking3以重讀閉音節(jié)（重讀閉音節(jié)即兩個(gè)輔音中間夾一個(gè)元音并且重讀的音節(jié)）結(jié)尾，呈現(xiàn)“輔，元，輔”結(jié)構(gòu)的動(dòng)詞，雙寫(xiě)末尾的輔音字母，再加ingstopstoppingsitsittingrunrunningforgetforgettingbeginbeginning這類詞還有：cut,get,hit,run,set,spit,stop,swim,beg,drop,fit,nod,dig,regret等。4以ie結(jié)尾的動(dòng)詞，把ie改為y，再加ingdiedyinglielyingtie_tying記doing口訣進(jìn)行時(shí)很好記,be加動(dòng)詞-ing;直加雙寫(xiě)去啞e,分詞構(gòu)成須仔細(xì);別說(shuō)be動(dòng)詞無(wú)詞義,主語(yǔ)和它最親密;變疑問(wèn)句提前它,變否定句be后加not莫忘記;何時(shí)要用進(jìn)行時(shí)now，look,listen,是標(biāo)志。趁熱打鐵：寫(xiě)出下列動(dòng)詞的現(xiàn)在分詞形式.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、現(xiàn)在進(jìn)行時(shí)的用法（1）用來(lái)表示說(shuō)話時(shí)正在進(jìn)行或者發(fā)生的動(dòng)作，例如：eg:Whatareyoudoing?Iamreadingabook.Motheriscookinginthekitchen.媽媽在廚房里煮飯。Whatareyoulookingat?你在看什么？用來(lái)表示現(xiàn)階段正在進(jìn)行的動(dòng)作（但說(shuō)話時(shí)不一定在進(jìn)行），例如：eg:Heisteachingattheschool.WearelearningUnit5thesedays.Isshewritinganovel?她正在寫(xiě)一本小說(shuō)嗎？（3）現(xiàn)在進(jìn)行時(shí)的句子中常有now,或在句首常出現(xiàn)Look!Listen!等提示詞eg:Listen!Dannyissingingintheroom.Look!Heisdoinghishomeworknow.(4).用來(lái)表示即將發(fā)生的動(dòng)作，一般是指按計(jì)劃或者安排好要發(fā)生的動(dòng)作。適用于這種情況的動(dòng)詞主要有：go,come,leave,start,arrive等。例如:I’mgoinghomeinhalfanhour.我一個(gè)半小時(shí)內(nèi)要回家。Thetrainisarrivingsoon.火車很快就要到達(dá)了。I’mcoming.我馬上來(lái)四、現(xiàn)在進(jìn)行時(shí)的句式變化肯定式結(jié)構(gòu)：主語(yǔ)+be+v-ing+其它.如:Iamreadingabook.Wearerunningnow.否定式結(jié)構(gòu)：主語(yǔ)+be+not+V-ing形式+其他.例如：Theyaren’tdoingtheirhomework.Iamnotwritingmyhomeworknow.一般疑問(wèn)句式結(jié)構(gòu)：Be+主語(yǔ)+動(dòng)詞-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.特殊疑問(wèn)句式結(jié)構(gòu)：疑問(wèn)詞+be+主語(yǔ)+其他eg:Whatishedoingnow?回答：Heisswimming.一.用所給動(dòng)詞的適當(dāng)形式填空.1.Look!Thecat____________(run)upthetree.2.Thetwins(雙胞胎)___________(have)breakfast.3.___he_________(clean)theblackboardnow?No,heisn’t.4.Tom______________(play)thepianointheroom.Pleaseaskhimtocomehere.5.Listen!They______________(sing)intheclassroom.漢譯英1.我們正在上英語(yǔ)課。._________________________________________________.2.他們正在打掃教室._________________________________________________.3.湯姆正在吃早飯._________________________________________________.4.那對(duì)雙胞胎正在睡覺(jué)._________________________________________________.5.男孩子們正在踢足球._________________________________________________.6.她正在彈鋼琴。._________________________________________________.7.我們正在看電視。._________________________________________________.8.你們正在聽(tīng)音樂(lè)嗎?_________________________________________________.二.選擇填空.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.句型轉(zhuǎn)換1.Iamwateringtheflowers.(否定句)2.She’sjumpingnow.(一般疑問(wèn)句)3.Theboysareplayingcards.(劃線提問(wèn))Heisdoinghishomework.(復(fù)數(shù)句)四．改錯(cuò),把錯(cuò)誤的地方下面畫(huà)上橫線，并在后面改出來(lái)。1、我的媽媽正在做早飯。Mymotheraremakeingbreakfast.2、我正要和我的朋友去看電影。Iisgoestomovieswithmyfriend.3、他們正在彈吉他嗎？Isheplayingtheguitar?4、她不在拉小提琴。Sheisn’playingviolin.5、她們?cè)诟墒裁?？正在打籃球。Whatisshedoing?Theyareplayingthebasketball.6、Lucy和Mary正在打排球。LucyandMaryisplayingthevolleyball.五．按要求完成下列句子Iamhavingabirthdayparty.________________________(一般現(xiàn)在時(shí))____________________________tonight(一般將來(lái)時(shí))2.Shesingsasongintheroom.___________________________now(現(xiàn)在進(jìn)行時(shí))_________________________tonight(一般將來(lái)時(shí))3.Shewillgotoschool._____________________(現(xiàn)在進(jìn)行時(shí)表示將來(lái)時(shí))______________________________(一般現(xiàn)在時(shí))4.Hisfatheriswritingaletterwithapen._______________________________(一般現(xiàn)在時(shí))_______