【初三英语阅读理解LivingSpaceHowmuchliv-查字典问答网
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  【初三英语阅读理解LivingSpaceHowmuchlivingspacedoesapersonneed?Whathappenswhenhisspaceneedsarenotmet?Scientistsaredoingexperimentsonratstotrytodeterminetheeffectsofovercrowdedconditionsonman.Recentstudieshaves】

  初三英语阅读理解

  LivingSpace

  Howmuchlivingspacedoesapersonneed?Whathappenswhenhisspaceneedsarenotmet?Scientistsaredoingexperimentsonratstotrytodeterminetheeffectsofovercrowdedconditionsonman.Recentstudieshaveshownthatthebehaviorofratsisgreatlyaffectedbyspace.Ifratshaveenoughlivingspace,theyeatwell,sleepwellandproducetheiryoungwell.Butiftheirlivingconditionsbecometoocrowded,theirbehaviorandeventheirhealthchangeobviously.Theycannotsleepandeatwell,andsignsoffearandworrybecomeclear.Themorecrowdedtheyare,andmoretheytendtobiteeachotherandevenkilleachother.Thus,forrats,populationsandviolencearedirectlyrelated.Isthisanaturallawforhumansocietyaswell?Isenoughspacenotonlysatisfactory,butnecessaryforhumansurvival?Theseareinterestingquestions

  What'sthepurposeoftheexperimentdescribedinthepassage?

  A.Tofindoutifovercrowdedconditionsaffecthumans

  B.Tofindouttherelationshipbetweenpopulationandlivingconditions

1回答
2019-05-13 22:48
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关艳霞

  A第二句“Scientistsaredoingexperimentsonratstotrytodeterminetheeffectsofovercrowdedconditionsonman.”

2019-05-13 22:51:30

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