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【Wethinkofbeespreferringtoliveinruralfields.ButnewresearchsuggestsBritain’sbeesarehappierneartownsandcitiesandthatisprettyoutofourexpectations.Astudyofwildlifesiteshasfoundthatmostfarmlandishometofewer】
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Wethinkofbeespreferringtoliveinruralfields.ButnewresearchsuggestsBritain’sbeesarehappierneartownsandcitiesandthatisprettyoutofourexpectations.

Astudyofwildlifesiteshasfoundthatmostfarmlandishometofewerspeciesofbeetodaythanitwasinthepast.Forinstanceheathsandmeadows(荒地牧场)nearMiltonKeynesnowhavemorespeciesofbeethansitesinmoreruralareas.Researchersbelieveintensiveagricultureistoblame.

Anotherquestion---isclimatechangeconfusingbees?Climatechangecouldbecausingdisorderintherelationshipbetweenbeesandplants.That’saccordingtoastudythatsaidwarmerspringscanchangethelifecyclesofbeeswhichcanthrowthemoutofsync(同步)withtheplantstheypollinate(授粉).Whilethegardensparksandchurchyardsoftownandcitiesprovidebeeswithavarietyofplantstofeedonandanextendedfloweringseasonpopularcropssuchasoilseedrapeonlyflowerforafewweeks.

Aresearchersaid“Whileconcretingoverthecountrysidemayappeartobebadnewsfornaturewe’vefoundthatprogressiveurbanizationmaybemuchlessdamagingthanintensiveagriculture.”

Urbanaresmaybenefitbeesmorethanfarmlandbyprovidingawidevarietyoffloweringplantsprovidingarichmenuforinsectsfromspringtoautumn.

OverthepastcenturyrurallandscapesinBritainhavebecomeincreasinglydominatedbylargeexpansesofmonoculture---thegrowingofasingletypeofplantwhichhashelpedimprovecropproduction.Butwithoutamixtureofhabitatandfoodsourcesruralareascansometimesbecomegreendesertsforbees.

Scientistsaroundthecountryaretryingtoworkoutwhypopulationsofbeesandotherinsectsaredroppingsharply.Pesticidesclimatechangeanddiseasesmaylikeintensivefarmingbesomeofthereasons.

33.Howdoesclimatechangeprobablyaffectbees’life?

A.Warmerspringsproducetoomanyplants.

B.Therearefewerplantsforbeestopollinate.

C.Beesprefertoliveincoolerenvironment.

D.Bees’connectionwithplantsisdisturbed.

34.Whichofthefollowingisoneofthereasonsforbeespreferringcities?

A.Abettervarietyoffoods. B.Moreflowersinwinter.

C.Increased

单卫回答:
  DAC
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