沪教版英语Unit3树木自然生态现在进行时语法课件（可编辑完整版）

Thepresentcontinuous现在进行时Howamazingthetreesare.Andwewillleanrnmoreabouttreesinthegrammarpart.Lastclass,wehavelearnedtreescancommunicatewithroots,theyhelpyoungertrees,theygetstrongerwhentheirleavesjointogether.LiNa:HiWangJie.Whatareyoudoingnow?WangJie:Now,IamwatchingaTVprogrammeabouttrees.Humansare

nottreatingtreesinakindway.LiNa:Really?Allthesethingsareabigproblem.WangJie:Sure!Weneedtodomoretoprotecttrees.PresentationWangJie:Look,wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair,itisharmingthetrees.Sometreesaredyingoutbecauseofhumans.Look!LiNaistalkingtoWangJieonthephone.Whataretheytalkingabout?.LiNa:HiWangJie.Whatareyoudoingnow?WangJie:Now,IamwatchingaTVprogrammeabouttrees.Humansarenottreatingtreesinakindway.Look,wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair,itisharmingthetrees.Sometreesaredyingoutbecauseofhumans.LiNa:Really?Allthesethingsareabigproblem.WangJie:Sure!Weneedtodomoretoprotecttrees.Whatarehumansdoingtotrees?Heis

watchingaTVprogramme.PresentationWhatisWangJiedoingnow?Be(amisare)+v-ingmeanssomethingishappeningrightnow.现在进行时态表达现在

发生的事。A.正在B.过去Definition定义正在LiNa:HiWangJie.Whatareyoudoingnow?WangJie:Now,IamwatchingaTVprogrammeabouttrees.Humansare

nottreatingtreesinakindway.Look,wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair,itisharmingthetrees.Sometreesaredyingoutbecauseofhumans.LiNa:Really?Allthesethingsareabigproblem.WangJie:Sure!Weneedtodomoretoprotecttrees.Thepresentcontinuous现在进行时Pleaselookattheredwords,whatdotheyhaveincommon?看标红

字体，它们有什么相同点？Thepresentcontinus现在进行时v-ingbe动词主语Subject其他othersNow,Iamwatching

aTVprogrammeabouttrees.Humansarenottreatingtreesinakindway.Look,wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair.It

isharmingthetrees.ObjectiveoneDoyouremember:1.thestructure（结构）ofthepresentcontinuoustense.2.the“beverb”（be动词变化）ofthepresentcontinuoustense.3.the“v-ing”（-ing变化）formsofthepresentcontinuoustense.4.the“tensemarker”（时间标志）ofthepresentcontinuoustense.5.changeofsentencepattern.（句式变换）Learningobjectivessubjectbev-ingothersv-ingbe动词主语其他LiNa:HiWangJie.Whatareyoudoingnow?WangJie:

Now,Iamwatching

aTVprogrammeabouttrees.Humansarenottreatingtreesinakindway.Look,wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair,it

isharmingthetrees.Howdoweuse“be”verb?如何使用be动词？ObjectivetwoI用

，you用

，

连着他(he),她(she),它(it)单数用

，复数全用

。areisisarebe动词（am,is,are）要根据

进行变化。

A.subjectB.others“Beverb”ALiNa:HiWangJie.Whatareyoudoingnow?WangJie:

Now,Iamwatching

aTVprogrammeabouttrees.Humansarenottreatingtreesinakindway.Look,wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair,itisharmingthetrees.Circlethe“be”verbs?圈出be动词。Underlinethe“subject”.划出主语。Findouttherulesofusingthe“be”verb.找出be动词和主语的关系。LookandfindInsects

eatingmybark(树皮).I

feelingpain(疼痛)!It

movingreallycarefully.areLookatthepictureandcompletetheblankswith“be”(is/am/are).看图,用“be”动词填空。isI用

，you用

，

连着他(he),她(she),它(it)单数用

，复数全用

。amareisisarebe动词（am,is,are）要根据

进行变化。主语amPractice（）Iknowmydeskmatewell.Iamknowingmydeskmatewell.Myyoungersisterlikeseatingapples.Myyoungersisterislikingeatingapples.Look!Forexample:★一些表示感官、认知、情感类的动词常用于一般现在时，不用于现在进行时，常见词如下(P41)：（）（）（）Theycallingonpeopletoprotecttrees.（）（）Sheisplantthetrees.Doyouremember:1.thestructure（结构）ofthepresentcontinuoustense.2.the“beverb”（be动词变化）ofthepresentcontinuoustense.3.the“v-ing”（-ing变化）formsofthepresentcontinuoustense.4.the“tensemarker”（时间标志）ofthepresentcontinuoustense.5.changeofsentencepattern.（句式变换）Learningobjectivessubjectbev-ingothersbe（am/is/are)随着人称和数量的变化而变化WangJie:

Now,Iamwatching

aTVprogrammeabouttrees.Humansarenottreatingtreesinakindway.Look,wearecuttingdownforestsallaroundtheworld.Wearepollutingthewaterandtheair,it

isharmingthetrees.Sometreesaredyingoutbecauseofhumans.v-ingbe动词主语其他Howdoweadd“-ing”foraverb?如何给动词加ing？Objectivethree“V-ing”2.以不发音的e结尾，

.3.辅音+元音+辅音，双写

加ing4.以ie结尾，

.去e加ing改ie为y加ing最后辅音字母1.一般情况直接

.加ingNow,IamwatchingaTVprogrammeabouttrees.(watch)Humansarenottreatingtreesinakindway.(treat)It

isharmingthetrees.(harm)Humansarepollutingthewaterandtheair,(pollute)Look,wearecuttingdownforestsallaroundtheworld.(cut)Sometreesaredyingout(灭绝)becauseofhumansnow.(die)Compareandfindouttherulesofaddingthe“-ing”.对比单词，找出加“-ing”的规律。Lookandfind2.以不发音的e结尾，

.3.辅音+元音+辅音，双写

加-ing4.以ie结尾，

.改ie为y加ing最后辅音字母1.一般情况直接

.加ing去e加ingPutthesewordsinthecorrectbox.单词分类。Doyouremember:1.thestructure（结构）ofthepresentcontinuoustense.2.the“beverb”（be动词变化）ofthepresentcontinuoustense.3.the“v-ing”（-ing变化）formsofthepresentcontinuoustense.4.the“tensemarker”（时间标志）ofthepresentcontinuoustense.5.changeofsentencepattern.（句式变换）Learningobjectivessubjectbev-ingothersbe（am/is/are)随着人称和数量的变化而变化直去双改Rightnow,insectsareeatingmybark.Listen,theladybugissinginghappily.Now,itiswaitingtobecomeameal.Lookatthisone,it

iseatingaleaf.现在进行时态标志词：1.时间副词:

...2.感官提示词:

...now,rightnow(现在)look,listenCompletethevideoscript.完成视频脚本。2.Look,it

(be)

(move)onthatpine'strunk.3.Nowit

(wait)tobecomeabird'sbigmeal.ismovingiswaitingTip:圈出标志词勿忘be动词ing变形记1.Rightnow,insects

(be)eatingmybark(树皮).Ouch!Iam

(feel)pain(疼痛)!arefeelingPractice4.Look,abug

(eat)aleaf.5.Sothetree

quietly

(give)off(散发)asmell(气味).6.Nowtheladybug

(enjoy)itsfreelunch.iseatingisenjoyingisTip:圈出标志词勿忘be动词ing变形记givingCompletethevideoscript.完成视频脚本。PracticeWhat'sthevideoabout?Howtreesprotectthemselves.Now,ChenLiismakingavideoabouthowtreesprotectthemselves.Let’shelpChenLifinishthevideoscript(视频脚本).

It'snoteasytobeatree.Rightnow,insects(1)

(eat)mybark(树皮).Ouch!I(2)

(feel)pain!Buttreeslikemehavecleverwaysoffightingback(回击).Wepinetrees(松树)canproduce(产生)aglue-likeliquid（胶状液体）,anduseittocatch(抓住)ourenemies(敌人).Lookatthissmallinsect.It(3)

(move)reallycarefullyonthatpine'strunk.But,badluck!Thestickyliquidcatchesit.Nowit(4)

sadly

(wait)tobecomealuckybird'sbigmeal(一餐).Completethevideoscriptwiththecorrectformoftheverbsinbrackets.用括号中动词的正确形式完成视频脚本。P42Wetreesdon'thaveeyes,butwecanstillsense(感知)things.someofuscanevenrecognize(辨别)differentkindsofbugs(虫子)!Lookatthisone,forexample:it(5)

(eat)aleaf.Don'tworry.Thetree(6)

quietly

(give)offasmell(气味).Itusesthesmelltocallforhelp.See?Nowaladybug(瓢虫)hasarrived.Itquicklycatchesthelittlebug.Nowtheladybug(7)

(enjoy)itsfreelunch.areeatingamfeelingisismovingwaitingiseatingisgivingisenjoying

Tip:圈出标志词勿忘be动词ing变形记PracticeHi,WangJie.AreyouwatchingaTVprogramme?Yes,Iam./No,Iamnot.PresentationIsshereusing(重复使用)paper?Yes,sheis./No,sheisnot.PresentationIsheusingthedisposablefoodbox(一次性饭盒)?Yes,heis./No,heisnot.PresentationAretheyplantingtrees?Yes,theyare./No,theyarenot.PresentationWhere

aretheyplantingtrees?Theyareplantingtreesonthehill.Sheisteaching.What

istheteacherdoing?Issheteachingtheimportanceoftrees?Yes,sheis./No,sheisnot.PresentationTheyarecallingonpeople.Whatarethestudentsdoing?PresentationAretheycallingonpeopletostopcuttingdowntrees?Yes,theyare./No,theyarenot.callonpeople(号召人们)ObjectivefiveIamwatchingaTVprogramme.IamnotwatchingaTVprogramme.1.肯定句变否定句在be动词后面直接加

。AreyouwatchingaTVprogramme?Isshereusing(重复使用)paper?Aretheyplantingtrees?2.肯定句变一般疑问句，将

提前，其他部分不变。What

istheteacherdoing?Where

aretheyplantingtrees?3.肯定句变特殊疑问句，

＋一般疑问句。notbe动词特殊疑问词“ChangeofSentensepattern”LookandfindAreyouwatchingaTVprogramme?Isshereusing(重复使用)paper?Aretheyplantingtrees?Yes,Iam.No,Iamnot(I'mnot).Yes,sheis.No,sheisnot(sheisn't).Yes,theyare.No,theyarenot(theyaren't).一般疑问句肯定回答:否定回答:Yes,主语+

.No,主语+

+

.be(am/is/are)be(am/is/are)notTodayisTreePlantingDay.Manystudents__________(help)tomaketheearthgreener.Look!TomandLucy__________(plant)asmalltreeneartheschoolgate.Tom__________(dig)ahole,andLucy__________(put)thetreeintothehole.Someotherstudents

(water)theplants.Theteacher__________(take)photostorememberthisspecialday.Everyone__________(work)hardand__________(have)fun!Watchandfillintheblanksinthepres