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中华考试网.华文燕园地址：北京市海淀区学清路18号1001室(学知苑南面楼)一．MobilePhonesMobilephonesshouldcarryalabeliftheyproved1tobeadangeroussourceofradiation,accordingtoRobertBell,ascientist.Andnomoremobilephonetransmittertowersshouldbebuilduntilthelong-termhealtheffectsoftheelectromagneticradiationtheyemitisscientificallyevaluated,hesaid.“Nobody’sgoingtodropdeadovernight2butweshouldbeaskingformorescientificinformation,”RobertBellsaidataconferenceonthehealtheffectsoflow-levelradiation._____(1)_____Areportwidelycirculatedamongthepublicsaysthatuptonowscientistsdonotreallyknowenoughtoguaranteetherearenoilleffectsonhumansfromelectromagneticradiation.AccordingtoRobertBell,thereare3.3millionmobilephonesinAustraliaaloneandtheyareincreasingby32,000aday._____(2)_____Aswell,thereare2,000transmittertowersaroundAustralia,manyinhighdensityresidentialareas5._____(3)_____Theelectromagneticradiationemittedfromthesetowersmayhavealreadyproducedsomeharmfuleffectsonthehealthoftheresidentsnearby.RobertBellsuggeststhatuntilmoreresearchiscompletedtheGovernmentshouldbanconstructionofphonetowersfromwithina500metreradiusofschoolgrounds,childcarecentres,hospitals,sportsplayingfieldsandresidentialareaswithahighpercentageofchildren._____(4)_____Headdsthatthereisalsoevidencethatifcancersufferersaresubjectedtoelectromagneticwavesthegrowthrateofthediseaseaccelerates._____(5)_____AccordingtoRobertBell,itisreasonableforthemajortelephonecompaniestofundit.Besides,healsourgestheGovernmenttosetupawideranginginquiryintopossiblehealtheffects.A.Hesaysthereisemergingevidencethatchildrenabsorblow-levelradiationataratemorethanthreetimesthatofadults6.B.Bytheyear20004itisestimatedthatAustraliawillhave8millionmobilephones:nearlyoneforeverytwopeopleC.“Ifmobilephonesarefoundtobedangerous,theyshouldcarryawarninglabeluntilpropershieldscanbedevised,”hesaid.D.Thenwhofinancestheresearch?E.Forexample,Telstra,OptusandVodaphonebuildtheirtowerswhereitisgeographicallysuitabletothemanddisregardtheneedofthecommunity.F.Theconclusionisthatmobilephonesbringsmoreharmthanbenefit.答案：1.C2.B3.E4．A5.D中华考试网.华文燕园地址：北京市海淀区学清路18号1001室(学知苑南面楼)二．EnergyfromtheSunEveryoneneedsandusesenergy.Iftherewerenoenergy,1Mostoftheenergyonthisplanetcomesfromthesun,butpeopledonotreceivethatenergydirectly.Itcomesfromdifferentsourcesandindifferentforms.Greenplantsconvertthesun'senergytofoodenergythatanimalsandpeopleuseforlife.Theenergyfromanimalshasbeenusedforhundredsofyearstooperatefarmequipmentandtopullcarts,wagons,andothervehicles.Thesun'senergytakeswaterfromrivers,lakes,andoceansand2Whenrainorsnowfallsonthelandsomeofitflowsintoriversandstreams.Thisflowingwatercanbeusedto3Watercanalsobeconvertedtosteam,whichproducesenergytooperatemachines.Windsalsocomefromsolarenergy.Airthathasbeenheatedbythesunrisesandcreateswinds.Theprocessofwindshasmovedshipsonthesea,groundgrain,andbroughtwatertotheearthThereisalsosolarenergyinwood,oil,andcoal.Thesefuelshavebeen4Peopleburnthemtoproduceheatandtocreatepowerformachines.Oilandcoalareusedtoproduceelectricalenergy,too.Andelectricityproduceslightheat,andsoundenergy.Inaddition,electricpoweroperatesmanykindsofequipment,tools,andmachines,whichmakeworkeasier.Ifyoumadealistofallthejobsperformedbythedifferentkindsofenergy,youwouldfillmanypages.Theneedforpowerincreaseseveryday,andsomesourcesofenergy5Soscientistsandtechniciansaretryingtofindnewwaystoproducepower.A．formedovermanycenturiesfromplants.B．returnsittotheearthintheformofrainorsnow.C．arebeingusedupveryquickly.D．therewouldbenolife.E．producemechanicalenergyandelectricity.F．arebeingproducedeveryday.答案：1、D2、B3、E4、A5、C三．Broken:DreamsofRuralPeaceItwasduskinTubneyWoods,deepinruralOxfordshire.Thebirdsweresingingattheendofanotherperfectday.Thewomanlivingattheedgeoftheforestcouldstanditnolonger.Shephonedthelocalnoisepollutionofficer.It'stherooks,shesaid.Ican'tbearthatawfulcawingnoise.Canyoudosomethingaboutit?中华考试网.华文燕园地址：北京市海淀区学清路18号1001室(学知苑南面楼)ThecallwasnosurprisetoofficialsattheValeofWhiteHorseDistrictCouncil.___1___.Thecountryside,aseverycountry-dwellerknows,canbeahellishlynoisyplace.LastweekDavidStead,aWestYorkshirefarmer,appearedincourtinWakefieldaccusedofallowinghiscockstobreaknoiseregulationsbycrowingatdawn,wakinganeighbor.___2___.SixmonthsagoCorky,afour-year-oldcock,wasbannedfromcrowingaftercomplaintsintheDevonvillageofStoke.Complaintsaboutnoisereasonableornot——areatrecordlevelsincountryareas.Environmentalhealthofficerssaythisispartlybecauseofanincreaseinnoisyactivity.However,asignificantnumberofcomplaintscomefromnewcomerstothecountryside.Therearemanysourcesofruralnoise.___3___.Mechanizedgraindriers,usuallyswitchedonforthreeweeksinSeptember,canproduceamaddeninglow-frequencyhum.MikeRoberts,chiefenvironmentalhealthofficeratValeofWhiteHorse,saidnoiseoftensoundedworseinthecountrysidethanincities.Withlessbackgroundsound,unwelcomenoisescanseemlouderandtravelfurther.Theoddestcomplaints,however,aretheonescouncilofficialscandonothingabout.ValeofWhiteHorseofficialshavebeenaskedtosilencenotonlynestingrooks.Pigeonsandp