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懂你Level21L2-U3-1/4listeningBusschedule1/aboutEarthA1.Hereisabusscheduleatabusstop.2.Ithasscheduleforthreebusesbetweeneightandninethirtyinthemorning.3.BusNo.38hasaregularschedule.4.Itcomeseveryfifteenminutes.5.Eightten,Eighttwenty-five,eightforty,eightfifty-five,nineten,nighttwenty-five.6.BusNo.forty-sevencomeslessoften.7.Itcomesateighttwenty,eightforty-five,ninetwenty-five.8.BusNo.sixtyistheearliestbus.9.Itcomesateighto-five,eightthirty,andnineo’clock.10.BusNo.thirty-eighthasstopsatthemaintrainstationandtheairport.11.BusNo.sixtystopsatthemaintrainstation,butdoesgototheairport.12.BusNo.forty-sevendoesn’tgotoeitherthemaintrainstationortheairport.B1.Thisisourplanetearth.2.Ithasshapeofasphere,likeaball.3.Theequator(地球的赤道)devicetheearthintotwohalvesequator.4.Thenorthernhalfisthenorthernhemisphere(半球体).5.Thesouthernhalfisthesouthernhemisphere.6.EuropeandAsiaarebothinthenorthernhemisphere.7.AustraliaandathirdofAfricaareinthesouthernhemisphere.C懂你Level221.Theearthmovesintwoways.2.First,it’sbeenandrotates.3.It’srotatesarounditsaxis.4.Theaxisisalinethroughitscenter.5.Ittakestheearthtwenty-fourhourstocompletearotation.6.Thatisthelengthofoneday.D1.Second,theearthtravelsaroundthesun.2.Ittakesaboutthreehundredsixty-fivedaysfortheearthtogoaroundthesun.3.Thatisthelengthofoneyear.4.It’saveragespeedduringtheyearisaboutthirtykilometerspersecond.E1.Theearth’saxisisnotperpendiculartothesun.2.Theearth’saxisistilted.3.Itistiltedatanangleofaroundtwenty-threepointfivedegrees.4.Thistiltcausestheseasonsoftheyear.F1.Duringpartoftheyear,northernhemisphereistiltedtowardthesun.2.Whenthenorthernhemisphereistiltedtowardthesun,itssummer.3.Whenthenorthernhemisphereistiltedawayfromthesun,itswinter.4.Thisiswhytheseasonsareoppositeforthenorthernandsouthernhemispheres.5.Whenit’ssummerinAustralia,it’swinterinEurope.G1.Whatwouldhappeniftheearth’stiltweredifferentthanitisnow.2.Iftheearthtiltswerelarger,summerwouldbehotter.3.Iftheearthtiltsweresmaller,summerswouldbecooler.4.Iftheearthhadnotiltatall,therewouldbenoseasons.5.Therefore,theangleofthetiltisveryimportantforlifeonearth.懂你Level23H1.Theearthisninety-threemillionmilesfromthesun.2.Thesunisatthecenterofoursolarsystem.3.Oursolarsystemhasseveralplanetswhichorbitaroundit.4.Ourplanetisthethirdplanetfromthesun.I1.Iftheearthwereclosertothesun,ourplanetwouldbehotter.2.Iftheearthwerefurtherfromthesun,ourplanetwouldbecolder.3.Therefore,thedistancebetweentheearthandthesun,it’sveryimportant.练：1.Wehavetowaituntil9:00,whichistenminutesfromnow.2.Whichbusdoesn’tgotothemaintrainstation.3.Thenorthernhalfisthenorthernhemisphere.4.Thelengthofoneyearisaboutthreehundredsixty-fixdays.5.Whatcausestheseasonsoftheyear?6.Inwinter,theearthtiltsawayfromthesun.L2-U3-1/4vocabularySeasons/differencedisease1A1.Winteristhecoldesttimeoftheyear.2.Winternightarelongandthedaysareshort.3.Summeristhehottesttimeoftheyear.4.Summernightsareshortandthedaysarelong.5.Springcomesafterwinterandbeforesummer.6.Springiswhentreesturngreen.7.Autumnorfallcomesaftersummerandbeforewinter.8.Autumniswhentreesturnmanycolorsandleavesfalltotheground.9.Somecountrieshavearainyseason.懂你Level2410.Inrainyseasonitrainsalmosteveryday.B1.Thisboyhasabrokenleg.2.Hecan’twalkwithoutcrutches.3.Thisgirlhasasorethroat.4.Shedoesn’tfeelgoodbecauseherthroathurts.5.Thisgirlisvomiting(呕吐)6.Sheatesomethingbad,soshe’sthrowingup.7.Thisboyhasafever.8.Histemperatureisthirty-ninepointfivedegreesCelsius.9.Thisgirlhasaheadache.10.Shedoesn’tfeelgoodbecausetheheadaches.练：1.Inspringthedaysbecomewarmereachday.2.Hebrokehisleginaskiingaccident3.Heneedstodrinkplentyofliquids.L2-U3-1/4dialogueTalkaboutseasons/takebustotrainstationA1.Ireallyhatethiscoldwinterweather.2.Really,Idon’tmindit,it’snotsobad.3.First,it’sreallycold.4.Second,Idon’tliketheshortdaysandlongnights.5.It’salwaysdark.6.Sure,butwhat’stheelsething?7.Springiscomingandwarmerweather.8.Yes,andlongerday.B1.Whataboutsummers?2.Doyoulikehotweather?懂你Level253.Idon’tlikesummerweathertoo.4.Isittoohotforyou?5.Yes,it’stoohot.6.Everydayishotandhumid(潮湿的).7.So,Ialwaysfeeltiredandthirsty.8.Yeah,metoo.9.Itakeashowertwiceaday.C1.So,whichisworse,summerorwinter?2.Goodquestion.3.IguessIpreferwinter.4.Whataboutyou?5.Well,Ipreferwintertoo.6.Idon’tmindthelongnight.D1.Ofcourse,thebestseasonsarespringandautumn.2.Whichthosedoyouprefer?3.That’sbetweenthoseto,Ipreferautumn.4.Whydoyoupreferautumn?5.Iloveitwhentheleavesturndifferentcolors.6.Iagreewithyou.7.Iguessautumnismyfavoriteseasontoo.E1.Isurprise,Tom.2.Ithoughtyoupreferspring.3.Whyisthat?4.Everythingisyoungandnewinspring,right?5.Well,maybeI’llchangemymind.F1.Excuseme,whenisthenextbus?2.Towhere?懂你Level263.Tothetrainstation.4.Let’slookatthebusschedule.5.Whichbusgoestothetrainstation?6.Busesforty-eightandsixtybothgotothetrainstation?G1.It’seightfifty-ninenow.So,Ijustmissthenumberthirty-eight.2.Right,itcomeafewminutesago.3.Thenextbustothetrainstationcomesatnineo’clock.4.Yes,Ihopeitisn’tlate.5.Thetrafficisheavy.H1.Oh,look,theNO.sixtyiscomingnow,rightonschedule.2.Great,thanksforyourhelp.3.You’rewelcome.4.H