Unit 2 Saving the Earth Topic 1 Section C 示范公开课教学课件【九年级英语上册仁爱版】

Unit2SavingtheEarthSectionCTopic1Pollutionhascausedtoomanyproblems.noisepollutionWarming-upWhatdoyouthinkofit?LookandtalkPre-readingWritedownthethingsthatcanmakenoisescatpianotrainwindbusdog…Read1aandmatchthewordswiththeirmeaningsWhile-readingA.tohurtsomeoneB.atypeorakindC.notbeabletohearD.togrowormakesomethingE.toputwordsorpicturesonto

paperusingamachine1.produce2.deaf3.print4.harm5.sortReadandcompletetheformWhile-readingthetopicsentenceofthepassageapropertitleNoiseisalsoakindofpollutionandisharmfultohuman’shealth.NoisePollutionHowdoesnoiseharmpeople’shealth?godeafa.Peopleoften_________.b.Peopleoftenfeel_____________and____________.c.Peoplemaybecome_____or_____.d.Yourpoint:

_____________________________.sickdeafWhile-readingFillintheblanksunpleasantuncomfortable1.Whichphrasehasthesamemeaningas“isharmfulto”?2.Whichsentenceshowsthatmanyteenagers’hearingin

Americaisnotgood?3.WhyisthehearingofmanyyoungAmericansnotgood?Answerthequestions“doesharmto”.ManyteenagersinAmericacanhearnobetterthan65-year-oldpeopledo.Becausetheyalwayslistentoloudpopmusic.While-reading=toomuchnoiseinnoisyconditionadv.最近recentlyv.

打扰；扰乱disturb=beharmfultodoharmto环境问题environmentalproblems引起某人做某事causesb.todosth.prep.包括……在内includingLearnthelanguagepointsWhile-reading1.Peoplewhoworkandliveinnoisyconditionsoftengodeaf.在嘈杂的环境中工作和生活的人容易变聋。定语从句e.g.Beethovenwasdeaf.e.g.He__________because

ofthetrafficaccident.wentdeafdeaf

adj.聋的godeaf变聋While-reading2.Forexample,manyoftheworkerswhoprintnewspapersandbookslose

theirhearing.很多印刷报纸和书籍的工人丧失听力。定语从句hearingn.听力loseone’shearing

=havehearinglossWhile-reading3.Suchpollutionmakespeoplefeeluncomfortable

and

unpleasant…uncomfortableadj.使人不舒服的unpleasantadj.令人不快的否定前缀un-e.g.unhappy,unclear,unfriendly…While-reading1.Theyaredoingtheirhomeworkcarefully.You’dbetternot________(disturb)them.2.Itisknownthatsmokingdoesgreat_______(harm)tous.3.Theyhadall______(sort)ofjuicetodrinkatthepartylastnight.4.Ourgovernmenthassolvedsome_____________(environment)problems.Post-readingFillintheblanksdisturbharmsortsenvironmentalCompletethepassageNoiseisakindof(1)_________(pollute).Carsandmachinesproducetoomuchnoise.Itmakespeoplefeel(2)______________(comfortable)and(3)__________(pleasant).Italsodoesgreat(4)______(harm)topeople’s(5)_________(hear).Noiseisvery(6)________(harm)tohuman’s(7)_______(healthy).pollutionuncomfortableunpleasantharmhearingharmfulhealthPost-reading1.Notallpeople

knownoiseisalsoakindofpollution.

__________________/__________________know(s)noiseis

akindofpollution__________________.2.ManyteenagersinAmericacanhearnobetterthan65-year-old

peopledo.

InAmerica,manyteenagers’hearingis_______________65-

year-oldpeople’s.ChangethesentencesintotheonesthathavethesamemeaningsNot

everyoneSomepeopleaswellasweakasPost-reading1.Whatis…pollution?2.Whatmakesthe…pollution?3.Whatproblemsdoesitcause?4.Inwhatwayisitharmfultopeople’slife?5.Whathasbeendonetosolvetheseproblems?…Chooseonekindofpollutionanddiscussitingroups.Thefollowingquestionsmayhelpyou.Post-readingDiscussWriteashortreportaboutakindofpollutionbasedondiscussion.Thetopicsentenceofeachparagraphisgiven

below.…pollutionis……pollutionisharmfultopeople’shealth…Thegovernmenthastriedmanywaystosolvethe

problem…Post-readingWriteashortreportPost-readingAppreciateonepossibleversionAirpollutionisbecomingmoreandmoreseriousintoday’sworld.Somechemicalfactoriesproduceterriblegasandmaketheairbad.Busesandcarsalsoproducewastegas.Inourdailylife,burninggas,oilandcoalalsocreatesairpollution.Theairpollutionmaycausealotofproblems.Itisharmfultopeople’shealth.Itcancausebreathingproblems,soreeyesandevencancer.Itcanalsoharmtheplants,andthefarmerswillgetlessharvest.Luckily,thegovernmenthastriedmanywaystosolvetheproblem,suchasmakinglawstopreventthefactoryfrompollutingtheair.Summary1.Keywords:deaf,print,hearing,loss,recently,disturb,uncomfortable,

unpleasant,sort,environmental,including,onto,sentence2.Keyphrases:

godeaf,doharmto/beharmfulto,loseone’shearing/havehearing

loss,in