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  【一道英语阅读理解题Doyouknowwhydifferentanimalsorinsects(昆虫)havetheirspecialcolors?Colorsareusedmainlytoprotectthemselves.Whycan’tsomebirdseasilycatchlocusts(蝗虫)?Itisbecauselocustschangetheircolor】

  一道英语阅读理解题

  Doyouknowwhydifferentanimalsorinsects(昆虫)havetheirspecialcolors?Colorsareusedmainlytoprotectthemselves.

  Whycan’tsomebirdseasilycatchlocusts(蝗虫)?Itisbecauselocustschangetheircolorstogetherwiththechangeofthecolorsofcrops(庄稼).Whencropsaregreen,locustslookgreen.Butasautumncomes,locustschangetothesamebrowncolorascropshave.Someotherinsectswithautumncomes,locustschangetothesamebrowncolorascropshave.Someotherinsectswithdifferentcolorsfromplantsareeasilyfoundandeatenbyothers.Sotheyhavetohidethemselvesforlivesinthedayandappearonlyatnight.

  Ifyoustudytheanimallife,you’llfindthemainuseofcoloringistoprotectthemselves.Bears,lionsandotheranimalscan’tbeeasilyseenbyhunters(猎人).Thisisbecausetheyhavethecolorsmuchlikethetrees.

  Haveyouevernoticedanevenmorestrangething?Akindoffishintheseacansendoutblackliquid(液体)whenitfacesdanger.Whiletheliquidspreadsover(散开),itsenemies(敌人)can’tfindit.Anditquicklyswimsaway.Soithasliveduptonowthoughitisnotstrongatall.

  ()91.Fromthearticlewelearnthatlocusts__________.

  A.aredangeroustotheirenemies

  B.areeasilyfoundbybirds

  C.changetheircolorstoprotectthemselves

  D.aresmallanimals

  ()92.Howcaninsectswithdifferentcolorsfromplantskeepoutofdanger?

  A.Theyhavetomovequietly.

  B.Theyhidethemselvesinthedayandappearatnight.

  C.Theyhavethecolorsmuchliketheirenemies.

  D.Theyrunawayquickly.

  ()93.Bearsandlionscankeepsafebecause__________.

  A.theyliveinforests

  B.theylikebrownandgreycolors

  C.theymovequietly

  D.theyhavethecolorsmuchlikethetrees

  ()94.Whycanakindoffishinthesealiveuptonow?Because__________.

  A.itisverybigandstrong

  B.theliquiditsendsoutcanhelpitswimawayfromitsenemies

  C.theliquiditsendsoutcankillitsenemies

  D.itswimsfasterthananyotherfish

  ()95.Whichisthebesttitleforthispassage?

  A.TheMainUseofColorsforAnimalsandInsects

  B.C

1回答
2020-06-13 23:40
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陈志敏

  cbdba

2020-06-13 23:42:27

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