问题标题:
阅读理解Weknowthatmanyanimalsdonotstayinoneplace.Birdsfishandotheranimalsmovefromoneplacetoanotheratacertaintime.Theymovefordifferentreasons:mostofthemmovetofi
问题描述:

(1)

(2)

阅读理解

  Weknowthatmanyanimalsdonotstayinoneplace.Birdsfishandotheranimalsmovefromoneplacetoanotheratacertaintime.Theymovefordifferentreasons:mostofthemmovetofindfoodmoreeasilybutothersmovetogetawayfromplacesthataretoocrowded.

  Whencoldweathercomesmanybirdsmovetowarmerplacestofindfood.Somefishesgivebirthinwarmwaterandmovetocoldwatertofeed.Themostfamousmigration(迁移)isprobablythemigrationoffishwhichiscalled“salmon”.Thisfishisborninfreshwaterbutittravelsmanymilestosaltwater.Thereitspendsitslife.Whenitisolditreturnstoitsbirthplaceinfreshwater.Thenitgivesbirthanddies.InnorthernEuropethereisakindofmouse.Theyleavetheirmountainhomeswhentheybecometoocrowded.Theymovedowntothelowland.Sometimestheymoveallthewaytotheseasideandmanyofthemarekilledwhentheyfallintothesea.

  Recently(近来),scientistshavestudiedthemigrationofakindoflobster(龙虾).Everyyear

  whentheseasonofthebadweatherarrivesthelobstersgetintoalonglineandstarttowalk

  acrosstheflooroftheocean.Nobodyknowswhytheydothisandnobodyknowswheretheygo.

  Sosometimesweknowwhyhumansandanimalsmovefromoneplacetoanotherbutatother

  timeswedon’t.Maybelivingthingsjustliketotravel.

Mostanimalsmovefromoneplacetoanotheratacertaintimeto________.

[  ]

A.

givebirth

B.

enjoywarmerweather

C.

findfoodmoreeasily

D.

findbeautifulplaces

Thefishcalled“salmon”spendsalongtimein________.

[]

A.

saltwater

B.

施长治回答:
  答案:1.C;2.A;3.B;4.B;5.D;   解析:   (1)
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