英语阅读理解：生态平衡的重要性

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1、英语阅读理解：生态平衡的重要性　　许多年前，农民为保护他们的鸡而猎杀了很多老鹰。然而新的问题来了，田里的田鼠猖狂了起来，结果农民的庄稼大多给吃光了。这是怎么回事呢？看看下文你就知道了，但一定要记住：Itisimportantforustokeepthebalanceofnature.　　Notmanyyearsago,somefarmerswereworriedbecausehawksweretakingmanyoftheirchicken.Thefarmersdidn’tknowwhattodo.Finallytheywenttothecountryofficialsandas

2、kedforhelp.　　“Killthehawks,”theofficialssaid,“Wewillevenpayforthem,”sothefarmersbegantothinkofwaystokillthehawks.　　Thefarmerskilledmanyhawks.Theynolongerhadtoworryabouttheirchickens.Buttheynowhadanewworry.Fieldmicewereeatingupalotofthefarmers’grain.　　Howdidthishappen?　　Hawkseatnotonlychickens

3、butalsofieldmice.Theyeatmorefieldmicethanchickens.Butthefarmersdidn’tknowthis.Whentheykilledalotofhawks,theychangedthebalance.　　Whenpeoplemoveintoanewplace,theyoftendestroymanywildplants.Oftentheseplantsarefoodfortheanimals.Iftheanimalscan’tfindenoughplantstoeat,theywillstarveorhavetoleavethe

4、place.　　InonepartoftheUSA,forexamplethedeerthereliketoeatacertainkindofwildroses.Themountainlionsthereeatthedeer.Thenumberofdeer,mountainlionsandwildrosesdoesn’tchangemuchifpeopleleavethingsastheyare.　　Butpeoplekilledmanymountainlionsinordertoprotectthedeer.Soonthereweresomanydeerthattheyateu

5、pallthewildroses.Thenthedeerbegantoeatthegreenleavesofyoungtrees.Thesetreeswereimportanttothefarmers.Sothefarmersthoughtofwaystoprotecttheirtrees.Nowthedeerhadnothingtoeat,andmanyofthemdied.Thiswasanotherlessonfromnature.　　Tokeepthebalanceofnatureisimportantforustoremember.　　根据以上短文内容判断正误，正确的用

6、“T”表示，错误的用“F”表示。　　1.Finallytheofficialstoldthefarmerstokillthehawks.　　2.Fieldmiceeatnotonlychickensbutalsothefarmers’grain.　　3.Whentheanimalscan’tfindenoughplantstoeatinaplace,theywillstarveorhavetoleave.　　4.Thenumberofanimalschangesmuchifpeopleleavethingsastheyare.　　5.Itisimportantforustokee

7、pthebalanceofnature.　　【答案及解析】　　1.选T。根据句子“Killthehawks,”theofficialssaid.可知，此题与短文内容相符合，所以可判断为正确。　　2.选F。本题句意为“田鼠不仅吃小鸡还吃农民的庄稼”，但由句子Fieldmicewereeatingupalotofthefarmers’grain.可知，田鼠只吃庄稼，　　3.选T。由句子Iftheanimalscan’tfindenoughplantstoeat,theywillsta