Unit2Water.ppt

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1、tap[tæp]n.水龙头1.Thechemicalsymbolforwateris____.A.H2OB.HO2C.H2O22.Whenyoufreezewater,itbecomesa____.A.liquidB.solidC.gas3.About____oftheEarthiscoveredwithwater.A.onethirdB.onehalfC.twothirds4.Yourbodyneedsabout____litres(升)ofwaterdaily.A.twoB.eightC.fou

2、r5.Whenyouexercise,theamountofwateryouneed____.A.increasesB.decreasesC.remainsthesame6.Youcouldlivewithoutwaterforafew___.A.daysB.weeksC.hoursbrushourteethtakeashowerwashourfaceswashourhandswashourclothesdrinkwaterCouldyoutellmewhywaterisimportant?Howm

3、uchdoyouknowaboutwater?Whowastalking?Whereweretheytalking?Whobeganthetalkfirst?WhydidDaisy/Mr.Waterbeginthetalk?DaisyandMrWaterweretalking.Theywereinthebathroom.MrWater,adropofwater.BecausethetapwasonwhenDaisywasbrushingherteeth.MrWatertoldDaisytoturnt

4、hattapoff.TurntoPage17andreadp1-p3.DaisystreamcloudpipetheYangtzeRiverlaketheHuangpuRiverwatertreatmentworksDaisy’shouseHowdoeswatercometoourhome?ReadP4-P8streamcloudpipetheYangtzeRiverlaketheHuangpuRiverwatertreatmentworksDaisy’shouseWhatdidMrWaterdod

5、uringhisjourney?______comfortablyinacloud,_______theview______himinto……______downthemountaininto……______himto…______thereforafewdays,_______alongwayand______into……they______himto……they______himathoroughcleaningand______afewchemicalstohim______inthepipe

6、sunderthestreets,_____therefloatedenjoyingdroppedspedcarriedrelaxedtravelledrantookgaveaddedtravelledwaitedAfterleavingDaisy’sflat,wherewillMr.Watergo?ReadP9-P13Hewillgotoasewageplant.Thentheywillpumphimintoariverandhewillbebackintothesea.First,water__

7、____comfortablyina______.Then,it_______waterintoa______andwater____downthemountaininto_______________.It______watertoa______,andit_____thereforafewdays.Next,it________alongwayand_____into_______________.Waterwasdirty,sotheytookittoa______________.Peopl

8、e______itathoroughcleaningand______afewchemicals.Afterthat,water______inthe_____underthestreet.Thenitcameoutofthetapinthebathroom.Afterthat,itwenttoa___________.They______waterintotheriveranditwasbackintothe____again.Daisy’sbrotherwante