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(8)ThesecretoftheearthWeallliveontheearth.Theearthturnsaroundonceaday.Asitturns.Somepeopleseesunriseanddaycomestotheirhouses,atthesametimesomepeopleseesunsetandnightcomestotheirhouses.Theearthmovesinanotherway,too.Ittravelsroundthesuninanorbittowardsthesun.Itissummeronthatpartoftheearth.Halfayearlater,theearthgoesroundtotheothersideofitsorbit.Thatpartoftheearthisnowfartherawayfromthesunandhasitswinter,andtheotherparthasitssummer.Betweensummerandwinter,bothhalvesoftheeartharethesamedistancefromthesun.Thenwehavespringandautumn.Astheearthgoesroundinitsorbit,wehaveourfourseasonsgoonandon.Newwords:Sunset:日落，黄昏；sunrise:日出;move:移动；towards:朝，向；orbit:轨道；distance:轨道；turnaround:旋转；ontheearth:在地球上；onceaday:每天一次；atthesametime:同时；goinorbit:沿轨道运行；Choosetheanswer:1.Wecanseesunriseandsunsetbecause_____A.thesunisneartousB.theearthturnsroundeverydayC.thesungoesoutofthecloudsinthedaytimeandintothematnightD.theearthmovesroundthesun2.Therearefourseasonsinayearbecause_____.A.theearthmovesroundthesunB.thesunturnsroundtheearthC.thesunmovesfromoneplacetoanotherD.theearthtravelsnearerandnearertothesun3.Whentheearthgoesroundthesun,wehave____onthepartthatleanstowardsthesun.A.springB.summerC.autumnD.winter4.Whenwehavewinter,thepartoftheearththatwestandonis____.A.nearthesunB.nearertothesunC.fartherawayfromthesunD.thesamedistanceastheotherpartfromit5.Whenbothhalvesoftheeartharethesamedistancefromthesun,wehave_____.A.springandautumnB.springandwinterC.summerandwinterD.summerandautumn(9)ThemoonThemoonlooksbiggerthanthestarsatnight.Butinfact,itissmallerthananyofthem.Themoonlooksbigtous,becauseitisclosertousthananystar.Themoongoesroundtheearth.Itmakesonetripaboutfourweeks.Themoonisaroundballandlooksbeautiful.Don’tyouthinkso?Nowpeopleknowquitealotaboutthemoon.Thereisnoairorwateronthemoonsotherearenotanytreesoranimals,orpeopleonthemoon.Themoongetsitslightfromthesun,butsomeplacesonthemoonarequitedark.Thedaysonthemoongethotterthanboilingwater.ThenightsgetcolderthanthenorthPoleontheearth.Newwords:Quite：相当,完全；boiling:沸腾的；NorthPole；北极；infact:事实上；Choosetheanswer:1.Peopleknowquite______aboutthemoonnow.A.alotB.afewC.littleD.some2.Themoonis_____totheearththanthesun.A.fatherB.farC.closeD.closer3.Themoonmakesonetriproundtheearthinabout_____.A.aweekB.fourweeksC.ayearD.24hours4.Thereis_____onthemoon.A.notanythingB.noriverC.nohillD.Noairorwater5.Thesun_____tothemoon.A.getslightB.giveslightC.givesairD.getsairAnswers:(8)BABCA(9)ADBDB