2022中考英语复习精品资料超值阅读练习31 Weknowthatmanyanimalsdonotstayinoneplace.Birds,fishandotheranimalsmovefromoneplacetoanotheratacertaintime.Theymovefordifferentreasons:mostofthemmovetofindfoodmoreeasily,butothersmovetogetawayfromplacesthataretoocrowded. Whencoldweathercomes,manybirdsmovetowarmerplacestofindfood.Somefishesgivebirthinwarmwaterandmovetocoldwatertofeed.Themostfamousmigration(迁移)isprobablythemigrationoffish,whichiscalled“salmon”.Thisfishisborninfreshwaterbutittravelsmanymilestosaltwater.Thereitspendsitslife.Whenitisold,itreturnstoitsbirthplaceinfreshwater.Thenitgivesbirthanddies.InnorthernEurope,thereisakindofmouse.Theyleavetheirmountainhomeswhentheybecometoocrowded.Theymovedowntothelowland.Sometimestheymoveallthewaytotheseaside,andmanyofthemarekilledwhentheyfallintothesea. Recently(近来),scientistshavestudiedthemigrationofakindoflobster(龙虾).Everyyear, whentheseasonofthebadweatherarrives,thelobstersgetintoalonglineandstarttowalk acrosstheflooroftheocean.Nobodyknowswhytheydothis,andnobodyknowswheretheygo. So,sometimesweknowwhyhumansandanimalsmovefromoneplacetoanother,butatother timeswedon’t.Maybelivingthingsjustliketotravel. 1.Mostanimalsmovefromoneplacetoanotheratacertaintimeto_______. A.givebirthB.enjoywarmerweather C.findfoodmoreeasilyD.findbeautifulplaces 2.Thefishcalled“salmon”spendsalongtimein______. A.saltwaterB.riversC.freshwaterD.itsbirthplace-2-\n 3.ThemiceinnorthernEuropemovewhen_______. A.theygivebirthB.theplacegetstoocrowded C.theweatherisbadD.theyhaven’tenoughfood 4.Thelobstersmove________.A.tothefreshwaterB.atacertaintimeC.totheunderseaD.tofindmorefood 5.Whatisthemainideaofthepassage? A.Animalsmovetofindfoodmoreeasily. B.Themigrationofthefishcalled“salmon”isthemostfamousmigration. C.Livingthingsmovefromoneplacetoanotherbecausetheyliketotravel.D.Sometimesweknowwhyandhowlivingthingsmovefromoneplacetoanother,butsometimeswedon’t. 【答案与解析】这篇短文讲述了某些生物的迁移这一自然现象，并分析了迁移的原因。科学家们最近又研究了龙虾海底成群结队迁移的现象。它们选择在每年天气不好的季节里进行迁移，其中的原因及迁移的目的，科学家尚未弄清楚。 1.C.起初一看，四个选项好像都在文中叙述过，但仔细分析题干中的“mostanimals”这一关键词语，便可排除其它选项。在第一段最后一句中可找到答案的出处。 2.A。有关“salmon”的情况在第二自然段中作了叙述。这种鱼出生在淡水中，后不到咸水地区居住，在那里度过一生中绝大部分时光。到老了以后又回到它出生之时的淡水之中。仔细分析题干中的“spendalonglife”和短文中的关键句“Thereitspendsitslife.”便可断定答案为A。 3.B。“theyleavetheirmountainhomeswhentheybecometoocrowded.”一句是答案的出处。 4.B。该题答案的出处是文章的第三自然段。文中说，龙虾是在海底成群结队游动的时间是每年天气不好的季节，目的及它们到哪里去谁也不知道，余项与文章叙述不符。 5.D。文中第二自然段叙述了“salmon”和北欧的一种老鼠迁移方向和原因；第三自然段叙述了龙虾的游动情况，但原因不知道。最后一段开头一句正是对本文主题的概括。-2-
