Unit 2 Saving the Earth Topic 1 Section D 课件(共19张P教育教学资料.ppt

Unit2SavingtheEarthTopic1Pollutionhascausedtoomanyproblems.SectionDIt_____(be)amessinthepast.Kangkang_______(go)theretwoyearsago.Thegovernment___________(solve)theproblem.Everything_____________(change).waswenthassolvedhaschangedSimplepast强调过去Presentperfect强调现在Therearemanykindsofpollutionaroundus,airpollutionlightpollutionlitterwaterpollutionsoilpollutionnoisepollutionReadthroughSectionsA-Candfillintheblankswiththecorrectwords.GrammarI_____(go)theretwoyearsago.It______(be)difficultformetobreathe.What_________________(cause)yourcough?Howhaveyou______(be)?Luckily,thegovernmenthas___________(solve)theproblem.beenwascausedsolvedwentSimplePast＆PresentPerfectOh,whata_______!Therewereseveralchemicalfactories_______wastewaterintothestream.Whatwas______,thefactorymadetoomuchnoise…Noiseis_________tohuman’shealth.Peoplewhoworkandliveinnoisyconditionsoften______deaf.…manyteenagersinAmericacanhearno______than65-year-oldpeopledo,……doesgreat_______topeople’shearing.Functionsshamepouringworsegoharmfulbetterharm()1.Whatisthepassagemainlyabout?A.Airpollution.B.Lightpollution.C.Thehealthyenvironment.D.Makingtheenvironmentbetter.()2.________destroy(s)thesoil.A.ChemicalsB.WeatherC.NoiseD.Industry()3.Howdopeoplefeelaftertheyworkinstronglightforalongtime?A.Excited.B.Happy.C.Terrible.D.Sad.Dothefollowingtasksandcheck.ADCPollutionCauseEffectairpollutionburning_____,_____and__________eyesand_________problemssoilpollutionusedtoomany_________whichdestroyedthesoil._________foodnoisepollution_______in