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Unit2OppositieworldLesson12Clean＆DirtyKelly&Class3,Grade32017.3.Let'sreviewit!Let'slistenandsingtogether.1.Listenfirst.2.Thensing

together.Whatoppositewordscanyou?open&closedirty&cleangood&badwet&drylong&shortin&outhot&coldfat&slimfe

w&manydark&lightgive&takefar&nearWhatoppositewordscanyoulearn?good&badin&outgive&takeMymomalwaysgives____T-shirtwithme.ButShealways____sth

e____T_shirtback.Somymomthinksitis______toplay____side.ButIthinkitis_____toplay____side.Lesson12(Listencarefully）音频）Lookanssay.(Part1）•A

:Look,therearesomanyfishinthispond.B:Wonderful.Lookandsay(Part2)•Therearenofishinthispond.Why,Mom??????Why?Be...causethisp

ondis...Fishcan?cannot?liveindirtywater.Why?Becausethispondis...Fishcan?cannot?liveindirtywater.Aboutourschool.Look,therearesomanyteachersandst

udentsinour...Ourschoolisvery...Wecanstudyandplayinthisschool.Lookandread.WriteYesorNoontheline.（书P27）•(1)Thewaterinthepondisclean.•(2

)Theriverisdirty.NOYesLookandread.WriteYesorNoontheline.•(3)Thewaterinthelakeisclean.•(4)Thecloudsinthesk

yaredark.YesNoCleanup!!!Canyouunderstand“clean”?***•Manyanimalsliveinthewater.Theyneedcleanwater.Manyplantsgrowinthewater.Theyneedcleanwater,too.Peo

plealsoneedcleanwater.•Theyneedcleanwatertodrink,cook,andwash.？？drinkcookwash...dirty/cleanlivegood/bad•Somepeoplethrowtr

ash???intotheriverandlakes.•Theymakethewater_____.Thisis____.Animalsandplantscannot____ind___water.•WeshouldKeepth

eriversandlakesc_______.dirty/cleanlivegood/bad•Somepeoplethrowtrash???intotheriverandlakes.•Theymakethewaterdirty.Thisisbad.Animalsandplantsca

nnotliveindirtywater.•WeshouldKeeptheriversandlakesclean.Weneedcleanwater.Wecareaboutcleanwater.Weprotectthecleanwater.Clean...songHomewo

rk>PleasemakeaposterontheA4paper.>Letmorepeoplecareabouttheclean...together.Postersaboutclean&dirtyKeepyourselfalwaysclean!