UnitTwoTopiconeSectionA课件仁爱版英语九年级上册

Unit2SavingtheEarth

Topic1Pollutionhascausedtoomanyproblems.

SectionALearningaimsLearnsomenewwordsandphrases.

Gettoknow:bee,butterfly,pour,villager,destroy,Beabletouse:mess,shame,several,waste,cutdownBeabletousesomeusefulexpressions.

Whatamess!Whatashame!…youcanseebeesandbutterfliesdancing.…thereareseveralchemicalfactoriespouringwasterwaterintothestream.Talkaboutthechangescausedbypollution.

MakesurethatyouhavemasteredthedifferencesbetweenSimplePastandPresentPerfecttense.现在完成时态(二)1)表示动作发生于过去并持续到现在.2)常用的时间状语：

for+一段时间

since+时间点/一段时间+ago/+一般过去时态的句子（用howlong提问）3)表示持续动作或状态的动作常用延续性动词。eg.这本书我买了一年了。

Ihavehadthebookforoneyear.(不能用buy)Revisioninclass延续性动词be(in/at)---beaway(from)beopenbedeadhavebeonkeepbemarriedhaveacoldbeclosedbeamemberof/bein+组织beillbebeawakeRevisioninclassExercisesinclassA.Theycametoourschoolin1980.B.They____________ourschoolsince1980.2.A.Themandiedfiveyearsago.B.Theman____________forfiveyears.3.A.Themeetingbegantwominutesago.B.Themeeting____________fortwominutes.4.A.Weborrowedtwobookslastweek.B.We________thetwobooksforaweek.havebeeninhasbeendeadhasbeenonhavehadListento1aandanswerthefollowingquestions.1.Whenwilltheygoforapicnic?A.OnFriday

B.OnSaturday

C.OnSunday2.WhowenttotheWestHilltwoyearsgao?

A.Maria

B.Kangkang

3.Whatarementionedinthepast?A.Chemicalfactories

B.Beesandbutterflies

4.Whatcanweinferfromthispassage?A.Kangkangandhisfriendswon’thaveapicnichere.B.Wecanseelotsofflowersandgrassnow.C.Chemicalfactoriesdidn’tpollutethewater.CCAB____beautiful____butterflies____dirty____grass____terrible____factory____bees____fresh____clean____wastewaterPPNPNNPPPN1bListento1aandmarkthewordswithP(Past)orN(Now).TwoyearsagoNow1.Itwasa_______________.2.Therewere_______________________.3.Theairwas__________________________andyoucouldsee_______________________.1.___________________havegone.2.Thewateris________andsmells___________.3.Thereareseveral________________pouring__________intothestream.4.__________haschanged.beautifulplacelotsofflowersandgrassfreshandthewaterwascleanbeesandbutterfliesdancingTheflowersandgrasssodirtyterriblechemicalfactorieswastewaterEverythingLanguagePoints

1.seesb./sth.doingsth.看见某人/某物正在做某事

seesb./sth.dosth.看见某人/某物做了某事(hear,watch,find,feel…)e.g.(1)IsawJack_________soccertherewhenIwalkedpasttheplayground.A.toplayB.playingC.playedD.play(2)Isawher________theroadjustnow.

A.crossB.crossedC.crossesD.tocross2.have/hasgone=have/hasdisappeared不见了，消失了3.therebe+sb./sth.+doingsth.有某人/某物正在做某事eg.Therearesomepeoplewaitingforthebusatthebusstop.therebesth.todo有某事要做eg.Thereismuchworktofinishtoday.4.wastevi.&vt.浪费,徒劳Don’twastepaper.不要浪费纸。adj.废弃的,无用的wastewatern.废料,废弃物\浪费;滥用;未充分利用(不可数)awasteof----BALanguagePoints

5.pourv.倒出；倾泻pour…into…把……倒入……e.g.Pourredwineintotheglass.6.messn.肮脏，杂乱inamess杂乱不堪，一团糟whatamess!太乱/多糟糕啊！7.shamen.羞耻，羞愧

whatashame!=whatapity!真遗憾！8.havegone=havedisappeared消失了9.cutdown 砍倒,砍伐cut---into---把---切成---cutup把---切碎cutoff裁剪---10.Thankgoodness谢天谢地

2Workinpairs.Lookatthepicturesandmakeupconversationssimilartotheexamplewithyourpartner.village/flowersandgrassvillagers/destroyhill/treesfarmers/cutdownlake/fishfactory/pollute一般过去时和现在完成时的用法区别一般过去时现在完成时用法连用的词和短语表示过去发生或已完成的动作对现在的影响或产生的结果（与现在无关）表示过去发生的动作或存在的状态（与现在无关）yesterday,last+时间名词,时间段+ago,in2005,inthepast,justnow…

for+时间段,since,recently,sofar,already,yet,just,ever,never,beforeinthepast+时间段,

5321463.A.Listentothesentencesandnumberthepictures.1.People_______________toomanytrees,soIdon’thaveenoughleavestoeat.2.Iliveintreesbutnowmanytrees______________.3.Ilikeleavesandgrass,butnowthey________________.4.I______________hungryformonthsbecauseoflessbamboo.5.Humanpollutedthesea,soI______________________.6.Thewater________________manyyearsago.Butit______________________formetoliveinnow.

havecutdownhavegonehavedisappearedhavebeendon’tlivehappilywascleanistoodirty4Workingroupsandtalkaboutpollutioninaplaceyouarefamiliarwith.Thefollowingsentencesmayhelpyou.

…ago,itwas…Now,…have/hasgone.Whathashappened?Everythinghaschanged.Oh,mygoodness!Exercisesinclass1.看见某人正在做某事2.看见某人做了某事3.已经消失4.某人/某物正在做某事5.有某事要做6.把…倒/排入…7.去野炊8.砍伐9.把---切碎10.太多的，如此多的11.太多的，如此多的12.太乱/多糟糕啊！13.真遗憾！14.浪费---15.谢天谢地16.为---计划---seesb.doingsth.seesb.dosth.havegone=havedisappearedthereissb./sth.doingsth.therebesth.todopour…into…haveapicnic=go(out)forapicniccutdowncutuptoo/somuch+不可数n.too/somany+可数n.whatamess!whatashame!=whatapity!=athat’stoobadawasteofThankgoodness.plansth.for---=makeaplanfor1.Look!Therearesomeboys________ontheplayground.A.playfootballB.areplayingfootballC.playingfootballD.playsfootball2.—I’msorryIcan’tgoshoppingwithyou.Iamill.

—________A.Whatamess!B.Whatashame!C.Whatapity!D.BandC3.—Don’t________water.Wemustsaveeverydropofit.

—Sorry,Iwon’tdoitagain.A.wasteB.throwC.playD.leave4.WhenIenteredtheroom,IsawMaria__________(read)aChinesebook.5.Whatashame!Theflowersandtreesintheparkhave___________(go).6.Everything_____________(change)inthepastfewyears.7.Pandasdon’thaveenoughbamboos__________(eat)nowbecauseofthepollution.