unit+2+topic+1+section+d

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1、Unit2SavingtheEarthTopic1Pollutionhascausedtoomanyproblems.SectionDIt_____(be)beautifulinthepast.Kangkang_______(go)theretwoyearsago.Theflowersandgrass___________(go).Everything_____________(change).Mrs.Zhou____________(be)likethissincelastweek.She____

2、__________(notsee)adoctoryet.waswenthavegonehaschangedhasbeenhasn’tseenSimplepast强调过去Presentperfect强调现在Theyarecausedbypollution.Therearemanykindsofpollutionaroundus,airpollutionlightpollutionlitterwaterpollutionsoilpollutionnoisepollutionincludingReadt

3、hroughSectionsA-Candfillintheblankswiththecorrectwords.GrammarI_____(go)theretwoyearsago.There______(be)lotsofflowersandgrass.What_________________(happen)here?Ihave______(be)likethissincelastweek.Theflowersandgrass____________(go)!beenwerehashappenedh

4、avegonewentSimplePast＆PresentPerfectOh,whata_______!Thereareseveralchemicalfactories_______wastewaterintothestream.What’s______,thefactorymakestoomuchnoise…Noiseis_________tohuman’shealth.Peoplewhoworkandliveinnoisyconditionsoften______deaf.…manyteenag

5、ersinAmericacanhearno______than65-year-oldpeopledo,……doesgreat_______topeople’shearing.Functionsshamepouringworsegoharmfulbetterharm()1.Whatisthepassagemainlyabout?A.Airpollution.B.Lightpollution.C.Litter.D.Allsortsofpollution.()2.________destroy(s)the

6、soil.A.ChemicalsB.WeatherC.NoiseD.Industry()3.Howdopeoplefeelaftertheyworkinstronglightforalongtime?A.Excited.B.Happy.C.Terrible.D.Sad.HowwelldoyouknowSectionsA-C?Nowdothefollowingtasksandcheck.ADCRead1aandchoosethebestanswer.PollutionCauseEffectairpol

7、lutionburning_____,_____and__________eyesand_________problemssoilpollution_____iseverywhere,usetoomany________________environmentand_________foodnoisepollution_______________placeforalongtimemakepeople_____andcause____________pressurelightpollution____

8、___lightkindsof________,badfor________1aReadthepassageandcompletethetableonPage34.gasoilcoalsorebreathinglitterchemicalsdirtyunhealthyworkinanoisydeafhighbloodstrongillnesseseyes1.Theyarebadforourhealthinmanyways.They____________toourhe