【初三英语任务型阅读.Weknowthatmanyanimalsdonotstayinoneplace.Birds,fishandotheranimalsmovefromoneplacetoanotheratacertaintime.Theymovefordifferentreasons:mostofthemmovetofindfoodmoreeasily,butothersmoveto】

　　初三英语任务型阅读.

　　Weknowthatmanyanimalsdonotstayinoneplace.Birds,fishandotheranimalsmovefromoneplacetoanotheratacertaintime.Theymovefordifferentreasons:mostofthemmovetofindfoodmoreeasily,butothersmovetogetawayfromplacesthataretoocrowded.

　　Whencoldweathercomes,manybirdsmovetowarmerplacestofindfood.Somefishesgivebirthinwarmwaterandmovetocoldwatertofeed.Themostfamousmigrationisprobablythemigrationoffish,whichiscalled“salmon”.Thisfishisborninfreshwaterbutittravelsmanymilestosaltwater.Thereitspendsitslife.Whenitisold,itreturnstoitsbirthplaceinfreshwater.Thenitgivesbirthanddies.InnorthernEurope,thereisakindofmouse.Theyleavetheirmountainhomeswhentheybecometoocrowded.Theymovedowntothelowland.Sometimestheymoveallthewaytotheseaside,andmanyofthemarekilledwhentheyfallintothesea.

　　Recently,scientistshavestudiedthemigrationofakindoflobster.Everyyear,

　　whentheseasonofthebadweatherarrives,thelobstersgetintoalonglineandstarttowalk

　　acrosstheflooroftheocean.Nobodyknowswhytheydothis,andnobodyknowswheretheygo.

　　So,sometimesweknowwhyhumansandanimalsmovefromoneplacetoanother,butatother

　　timeswedon’t.Maybelivingthingsjustliketotravel.

　　1.thereasonformostoftheanimalstomoveis__________

　　2.Findthewordinthepassagewhichmeans"themovenmetfromoneplacetoanotherofalargegroupofanimals"________

　　3.thesalmoncomesbacktoitsbirthplaceinorderto________

　　4.thelobstersbegintomovetoanotherplacewhen__________