英语短文阅读Wheredoesthewindcomefrom?Whatmakesthewindmoveallthetime?Scientiststellusthatitisthesunthatmakesairmove,andmakesitblow.Whenthesunshinesontheearth,itmakestheearthhot.Thentheearthmakestheairhot

　　英语短文阅读

　　Wheredoesthewindcomefrom?Whatmakesthewindmoveallthetime?Scientiststellusthatitisthesunthatmakesairmove,andmakesitblow.Whenthesunshinesontheearth,itmakestheearthhot.Thentheearthmakestheairhot.Whentheairbecomeshotter,italsobecomeslighter.Thelightairgoesup.Coolaircomesintotaketheplaceofthehotair.Thehotlightairgoesuphigherandhigheruntilitbecomescool.Thenitcomesdownagain,andthentheearthmakesithotagain,andithastogoup.Whentheairmoves,wehavewind.

　　()31.Whatmakesthewindmove?A.Theair.B.Thesun.C.Theearth..D.Thecloud.()32.“Whentheairbecomeshotter,italsobecomeslighter.”Here“it”means.A.thesunB.thewindC.theearthD.theair()33.Whichisright?A.Thehotairisheavierthanthecoolair.B.Thecoolairgoesuptotaketheplaceofthehotair.C.Theairmovestomakethewind.D.Onrainydayswecanneverfeelwind.()34.Whichistherightorder?a.Theearthmakestheairhot.b.Thehotairgoesup.c.Thesunshinesontheearth.d.Thehotairbecomescool.A.a–b–c–dB.b–a–c–dC.c–a–b–dD.d–a–b–c()35.Thepassagemainlytellsus.A.howthewindcomesoutB.whatthewindisC.whenwehavethewindD.whentheairbecomeshot