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? ?下面的短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第1～4段每段选择1个最佳标题；(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。 ? ? U...
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? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
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第三篇TechnologyTransferinGermany whenitcomestotranslatingbasicresearchintoindustrialsuccessfewnationscanmatchGermany．Sincethe1940sthenation’svastindustrialbasehasbeenfedwithaconstantstreamofnewideasandexpertisefromscience．AndthoughGermanprosperity繁荣hasfaltered衰退overthepastdecadebecauseofthehugecostofunifyingeastandwestaswellastheglobaleconomicdeclineitstillhasanenviable令人羡慕的recordforturningideasintoprofit． MuchofthereasonforthatsuccessistheFraunhoferSocietyanetworkofresearchinstitutesthatexistssolelytosolveindustrialproblemsandcreatesoughtaftertechnologies?ButtodaytheFraunhoferinstituteshavecompetition．Universitiesaretakinganeverlargerroleintechnologytransferandtechnologyparksarespringingupallover．Theseeffortsarebeingcomplementedbythefederalprogrammesforpumpingmoneyintostart-upcompanies? Suchastrategymaysoundlikearecipeforeconomicsuccessbut1tisnotwithoutitscritiesThesepeopleworrythatfavouringappliedresearchwillmeanneglectingbasicscienceeventuallystarvingindustryoffleshideas．Ifeveryscientiststartsthinkinglikeanentrepreneur企业家theargumentgoesthenthetraditionalprinciplesofuniversityresearchbeingcuriosity．drivenfreeandwidelyavailablewillsuffer．Othersclaimthatmanyoftheprogrammestopromotetechnologytransferareawasteofmoneybecausehalfthesmallbusinessesthatarepromotedareboundtogobankruptwithinafewyears? WhilethisdebatecontinuesnewideasflowatasteadyratefromGermany’sresearchnetworkswhichbearfamousnamessuchasHelmholtzMaxPlanckandLeibniz．YetitisthefourthnetworktheFraunhoferSocietythatplaysthegreatestroleintechnologytransfer． Foundedin1949.theFraunhoferSocietyisnowEurope’slargestorganisationforappliedtechnologyandhas59institutesemploying12000people．Itcontinuestogrow．Lastyear’itswalloweduptheHeinrichHertzInstituteforCommunicationTechnologyinBerlin．TodaythereareevenFraunhofersintheUSandAsia． WhichofthefollowingisNOTtrueoftraditionaluniversityresearch?
第二篇Cellphones:hanguporkeeptalking Millionsofpeopleareusingcellphonestoday.Inmanyplacesitisactuallyconsideredunusualnottouseone.Inmanycountriescellphonesareverypopularwithyoungpeople.Theyfindthatthephonesaremorethanameansofcommunication—havingamobilephoneshowsthattheyarecoolandconnected. Theexplosionsaroundtheworldinmobilephoneusemakesomehealthprofessionalsworried.Somedoctorsareconcernedthatinthefutremanypeoplemaysufferhealthproblemsfromtheuseofmobilephones.InEnglandtherehasbeenaseriousdebateaboutthisissue.Mobilephonecompaniesareworriedaboutthenegativepublicityofsuchideas.Theysaythatthereisnoproofthatmobilephonesarebadforyourhealth. Ontheotherhandwhydosomemedicalstudiesshowchangesinthebraincellsofsomepeoplewhousemobilephones?Signsofchangeinthetissuesofthebrainandheadcanbedetectedwithmodernscanning扫描equipment.Inonecaseatravelingsalesmanhadtoretireatayoungagebecauseofseriousmemoryloss.Hecouldn’trememberevensimpletasks.Hewouldoftenforgetthenameofhisownson.Thismanusedtotalkonhismobilephoneforaboutsixhoursadayeverydayofhisworkingweekforacoupleofyears.Hisfamilydoctorblamedhismobilephoneusebuthisemployer’sdoctordidn’tagree. Whatisitthatmakesmobilephonespotentiallyharmful?Theanswerisradiation.High-techmachinescandetectverysmallamountsofradiationfrommobilephones.Mobilephonecompaniesagreethatthereissomeradiationbuttheysaytheamountistoosmalltoworryabout. Asthediscussionabouttheirsafetycontinuesitappearsthatit’sbesttousemobilephoneslessoften.Useyourregularphoneifyouwanttotalkforalongtime.Useyourmobilephoneonlywhenyoureallyneedit.Mobilephonescanbeveryusefulandconvenientespeciallyinemergencies.Inthefuturemobilephonesmayhaveawarninglabelthatsaystheyarebadforyourhealth.Sofornowit’swisenottouseyourmobilephonetoooften.Thewriter’spurposeofwritingthisarticleistoadvisepeople
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SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
MotherNatureShowsHerStrength Tornadoes龙卷风andheavythunderstormsmovedacrosstheGreatLakesandintoTrumbullCountyonSaturdayevening．Thestormsweredramaticanddangerous． GeorgeSnyderwasdrivingthefiretruckdownRoute88whenhefirstnoticedthatafunnel漏斗状的cloudwasbehindhim．Istoppedthetruckandwatchedthefunnelcloud．Itwasabout100feetoffthegroundandIsawitgoupanddownforawhile．ItwasmovingtowardBradleyRoadandthensuddenlyitdisappeared．Snydersaid． SnyderonlysawoneofthefunnelcloudsthatpassedthroughnortheasternOhioonSaturday．InTrumbullCountyatornadoturnedtreesontotheirsides．SometreesfeelontohousesandCars．Othertreesfellintotelephoneandelectricalwiresastheywentdown． AmandaSymcheckwashavingapartywhenthestormbegan．Iknewsomethingwaswrongshesaid．Isawtheskygogreenandpink粉红色．Thenitsoundedlikeatrainrushingtowardthehouse．Istartedcryingandtoldeveryonetogotothebasementforprotection． Thetornadocausedalotofdamagetocarsandhousesinthearea．Itwilltakealongtimeandmuchmoneytorepaireverything．Therewasalsoseriouswaterdamagefromthethunderstorms．Theheavyrainsandhighwindcausedthepowertogooutinmanyhomes? Thestormscausedseriousfloodinginareasneartheriver．MorethanfourinchesofrainfellinpartsofTrumbullCounty．Theriverwassohightthatthewaterranintostreetsandhouses．ManystreetshadtobeclosedtoCarsandtrucksbecauseofthehighwater．’Thismadeitdifficultforfiretrucks．policecarsandotherrescuevehiclestohelppeoplewhowereintrouble? Manypeoplewholiveneartheriverhadtoleavetheirhomesfortheirownsafety．Somepeoplereportedfivefeetofwaterintheirhomes．Localandstateofficialsopenedemergencysheltersforthepeoplewhowereevacuated撤走．TheRedCrossservedmealstothem． ThiswasareallyintensestormsaidSnyder．’PeoplewereafraidMotherNaturecallbefierce．Wewereluckythistime．Noonewaskilled． TheweatherwasniceinTrumbullCountyonSaturdayevening．
Theyagreedto{{U}}modify{{/U}}theirpolicy．
SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
第二篇CrystalEar Onedayafriendaskedmy．wifeJillifIwantedahearingaid．Hecertainlydoes．repliedJill．Afterhearingaboutaremarkablenewproduct．JillfinallygotupthenervetoaskmeifI’deverthoughtaboutgettingahearingaid．NowayIsaid．Itwouldmakemelook20yearsolder．Nonoshereplied．Thisisentirelydifferent．It’sCrystalEar! Jillwasright．CrystalEarisdifferent—nottheold.Styledbodywornover-the．earaidbut alladvancedpersonalsoundsystemsosmallthatit’slikecontacts隐形眼镜foryourears．AndCrystalEarissuper-sensitiveandpowerful．too．Youwillhearsoundsyourearshavebeenmissingforyears．CrystalEarwillmakespeech10uderandthesoundispureaddnatural． Icouldn’tbelievehowtinyitis．Itissmallerthanthetipofmylittlefingerandit’salmostinvisibleWhenworn．Therearenowiresnobehind—the．eardevice．Putitinyourearanditsready—to-wearmold形状fitscomfortably．Sinceit’snottooloudortootightyoumayevenforgetthatyou’rewearingit!Useitatworkoratplay．AndifyourhearingproblemisworseincertainsituationsuseCrystalEaronlywhenyouneedit． HearinglosswhichOccurstypicallypriortoteenageyearsprogressesthroughoutone’slifetime．A1thoughhearinglossisnowtheworld’snumberonehealthproblemnearly90percentofpeoplesufferinghearing10SSchoosetoleavetheproblemuntreated．Formanymillionstreatinghearing10SSinaconventionalwaycaninvolvenumerousofficevisitsexpensivetestingandadjustmentstofityourear．ThankstoCrystalEarthesoundsolutionisnowconvenient． Almost90percentofpeoplewithmildhearinglossandmillionsmorewithjustalittlehearingdrop-off下降canbedramaticallyhelpedwithCrystalEar．Moreoveritssuperiordesignisenergy-efficientsobatteriescanlastmonths．CrystalEarisnowavailabletohelpthesepeopletreattheirhearinglosswithasmallhearingamplifier放大器． Manypeopleleavetheirhearingproblemuntreatedbecause
第二篇CrystalEar Onedayafriendaskedmy．wifeJillifIwantedahearingaid．Hecertainlydoes．repliedJill．Afterhearingaboutaremarkablenewproduct．JillfinallygotupthenervetoaskmeifI’deverthoughtaboutgettingahearingaid．NowayIsaid．Itwouldmakemelook20yearsolder．Nonoshereplied．Thisisentirelydifferent．It’sCrystalEar! Jillwasright．CrystalEarisdifferent—nottheold.Styledbodywornover-the．earaidbut alladvancedpersonalsoundsystemsosmallthatit’slikecontacts隐形眼镜foryourears．AndCrystalEarissuper-sensitiveandpowerful．too．Youwillhearsoundsyourearshavebeenmissingforyears．CrystalEarwillmakespeech10uderandthesoundispureaddnatural． Icouldn’tbelievehowtinyitis．Itissmallerthanthetipofmylittlefingerandit’salmostinvisibleWhenworn．Therearenowiresnobehind—the．eardevice．Putitinyourearanditsready—to-wearmold形状fitscomfortably．Sinceit’snottooloudortootightyoumayevenforgetthatyou’rewearingit!Useitatworkoratplay．AndifyourhearingproblemisworseincertainsituationsuseCrystalEaronlywhenyouneedit． HearinglosswhichOccurstypicallypriortoteenageyearsprogressesthroughoutone’slifetime．A1thoughhearinglossisnowtheworld’snumberonehealthproblemnearly90percentofpeoplesufferinghearing10SSchoosetoleavetheproblemuntreated．Formanymillionstreatinghearing10SSinaconventionalwaycaninvolvenumerousofficevisitsexpensivetestingandadjustmentstofityourear．ThankstoCrystalEarthesoundsolutionisnowconvenient． Almost90percentofpeoplewithmildhearinglossandmillionsmorewithjustalittlehearingdrop-off下降canbedramaticallyhelpedwithCrystalEar．Moreoveritssuperiordesignisenergy-efficientsobatteriescanlastmonths．CrystalEarisnowavailabletohelpthesepeopletreattheirhearinglosswithasmallhearingamplifier放大器． Initiallythewriterdidnotwantt0buyahearingaidbecause
MotherNatureShowsHerStrength Tornadoes龙卷风andheavythunderstormsmovedacrosstheGreatLakesandintoTrumbullCountyonSaturdayevening．Thestormsweredramaticanddangerous． GeorgeSnyderwasdrivingthefiretruckdownRoute88whenhefirstnoticedthatafunnel漏斗状的cloudwasbehindhim．Istoppedthetruckandwatchedthefunnelcloud．Itwasabout100feetoffthegroundandIsawitgoupanddownforawhile．ItwasmovingtowardBradleyRoadandthensuddenlyitdisappeared．Snydersaid． SnyderonlysawoneofthefunnelcloudsthatpassedthroughnortheasternOhioonSaturday．InTrumbullCountyatornadoturnedtreesontotheirsides．SometreesfeelontohousesandCars．Othertreesfellintotelephoneandelectricalwiresastheywentdown． AmandaSymcheckwashavingapartywhenthestormbegan．Iknewsomethingwaswrongshesaid．Isawtheskygogreenandpink粉红色．Thenitsoundedlikeatrainrushingtowardthehouse．Istartedcryingandtoldeveryonetogotothebasementforprotection． Thetornadocausedalotofdamagetocarsandhousesinthearea．Itwilltakealongtimeandmuchmoneytorepaireverything．Therewasalsoseriouswaterdamagefromthethunderstorms．Theheavyrainsandhighwindcausedthepowertogooutinmanyhomes? Thestormscausedseriousfloodinginareasneartheriver．MorethanfourinchesofrainfellinpartsofTrumbullCounty．Theriverwassohightthatthewaterranintostreetsandhouses．ManystreetshadtobeclosedtoCarsandtrucksbecauseofthehighwater．’Thismadeitdifficultforfiretrucks．policecarsandotherrescuevehiclestohelppeoplewhowereintrouble? Manypeoplewholiveneartheriverhadtoleavetheirhomesfortheirownsafety．Somepeoplereportedfivefeetofwaterintheirhomes．Localandstateofficialsopenedemergencysheltersforthepeoplewhowereevacuated撤走．TheRedCrossservedmealstothem． ThiswasareallyintensestormsaidSnyder．’PeoplewereafraidMotherNaturecallbefierce．Wewereluckythistime．Noonewaskilled． AmandaSymcheckwashavingapartyinthebasementwhenthestormbegan?
SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
第一篇U．S．BlacksHard?hitbyCancer DeathratesforcancerarefallingforallAmericans．butblackAmericansarestillmorelikelytodieofcancerthanwhitestheAmericanCancerSocietysaidMonday Inaspecialreportoncancerandblackstheorganizationsaidblacksareusuallydiagnosedwithcancerlaterthanwhitesandtheyaremorelikelytodieofthedisease． Thiscouldbebecauseofunequal不平等的accesstomedicalCareBecauseblacksaremorelikelytohaveotherdiseasesaswellandperhapsbecauseofdifferencesinthebiology生物学ofthecancanceritselfthereportadded． IngeneralblackAmericanshavelesshopeofsurvivingfiveyearsafterdiagnosisthailwhitesforallcancersitesandallstagesofdiagnosis．thereportsaid． IndescribingcancerstatisticsforblackAmericansthisreportrecognizesthatmanyofthedifferencesassociatedwithracemaybecausedbyunfairsocialandeconomicdifferencesandunequalaccesstomedicalcare．’ Thecancersocietysaidblacksshouldbeencouragedtogetcheck-ups体格检查earlierWhencancerismoretreatable．anditsaidmoreresearchisneededtoseeifbiologicaldifferencesplayarole． ‘‘Thenewstatisticsemphasizethecontinuingimportanceofwipingouttheseunfairsocialdifferencesthroughpublicpolicyandeducationeffortstheorganizationsaidinastatement． Butitalsonoteda出opincancerdeathrates． CancerdeathratesinbothsexesforallsitescombinedhavedroppedgreatlyamongblackAmericanssince1992ashaveincidencerates发生率saidthereport．’ Publicpolicyandeducationeffortsmayhelptodoawaywith
SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
第二篇Cellphones:hanguporkeeptalking Millionsofpeopleareusingcellphonestoday.Inmanyplacesitisactuallyconsideredunusualnottouseone.Inmanycountriescellphonesareverypopularwithyoungpeople.Theyfindthatthephonesaremorethanameansofcommunication—havingamobilephoneshowsthattheyarecoolandconnected. Theexplosionsaroundtheworldinmobilephoneusemakesomehealthprofessionalsworried.Somedoctorsareconcernedthatinthefutremanypeoplemaysufferhealthproblemsfromtheuseofmobilephones.InEnglandtherehasbeenaseriousdebateaboutthisissue.Mobilephonecompaniesareworriedaboutthenegativepublicityofsuchideas.Theysaythatthereisnoproofthatmobilephonesarebadforyourhealth. Ontheotherhandwhydosomemedicalstudiesshowchangesinthebraincellsofsomepeoplewhousemobilephones?Signsofchangeinthetissuesofthebrainandheadcanbedetectedwithmodernscanning扫描equipment.Inonecaseatravelingsalesmanhadtoretireatayoungagebecauseofseriousmemoryloss.Hecouldn’trememberevensimpletasks.Hewouldoftenforgetthenameofhisownson.Thismanusedtotalkonhismobilephoneforaboutsixhoursadayeverydayofhisworkingweekforacoupleofyears.Hisfamilydoctorblamedhismobilephoneusebuthisemployer’sdoctordidn’tagree. Whatisitthatmakesmobilephonespotentiallyharmful?Theanswerisradiation.High-techmachinescandetectverysmallamountsofradiationfrommobilephones.Mobilephonecompaniesagreethatthereissomeradiationbuttheysaytheamountistoosmalltoworryabout. Asthediscussionabouttheirsafetycontinuesitappearsthatit’sbesttousemobilephoneslessoften.Useyourregularphoneifyouwanttotalkforalongtime.Useyourmobilephoneonlywhenyoureallyneedit.Mobilephonescanbeveryusefulandconvenientespeciallyinemergencies.Inthefuturemobilephonesmayhaveawarninglabelthatsaystheyarebadforyourhealth.Sofornowit’swisenottouseyourmobilephonetoooften.PeoplebuycellphonesforthefollowingreasonsEXCEPTthat
MotherNatureShowsHerStrength Tornadoes龙卷风andheavythunderstormsmovedacrosstheGreatLakesandintoTrumbullCountyonSaturdayevening．Thestormsweredramaticanddangerous． GeorgeSnyderwasdrivingthefiretruckdownRoute88whenhefirstnoticedthatafunnel漏斗状的cloudwasbehindhim．Istoppedthetruckandwatchedthefunnelcloud．Itwasabout100feetoffthegroundandIsawitgoupanddownforawhile．ItwasmovingtowardBradleyRoadandthensuddenlyitdisappeared．Snydersaid． SnyderonlysawoneofthefunnelcloudsthatpassedthroughnortheasternOhioonSaturday．InTrumbullCountyatornadoturnedtreesontotheirsides．SometreesfeelontohousesandCars．Othertreesfellintotelephoneandelectricalwiresastheywentdown． AmandaSymcheckwashavingapartywhenthestormbegan．Iknewsomethingwaswrongshesaid．Isawtheskygogreenandpink粉红色．Thenitsoundedlikeatrainrushingtowardthehouse．Istartedcryingandtoldeveryonetogotothebasementforprotection． Thetornadocausedalotofdamagetocarsandhousesinthearea．Itwilltakealongtimeandmuchmoneytorepaireverything．Therewasalsoseriouswaterdamagefromthethunderstorms．Theheavyrainsandhighwindcausedthepowertogooutinmanyhomes? Thestormscausedseriousfloodinginareasneartheriver．MorethanfourinchesofrainfellinpartsofTrumbullCounty．Theriverwassohightthatthewaterranintostreetsandhouses．ManystreetshadtobeclosedtoCarsandtrucksbecauseofthehighwater．’Thismadeitdifficultforfiretrucks．policecarsandotherrescuevehiclestohelppeoplewhowereintrouble? Manypeoplewholiveneartheriverhadtoleavetheirhomesfortheirownsafety．Somepeoplereportedfivefeetofwaterintheirhomes．Localandstateofficialsopenedemergencysheltersforthepeoplewhowereevacuated撤走．TheRedCrossservedmealstothem． ThiswasareallyintensestormsaidSnyder．’PeoplewereafraidMotherNaturecallbefierce．Wewereluckythistime．Noonewaskilled． TherehadnotbeensuchaseverestorminTrumbullCountyforahundredyears
SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
Heenduredgreatpainbeforehefinally{{U}}expired{{/U}}．
第二篇CrystalEar Onedayafriendaskedmy．wifeJillifIwantedahearingaid．Hecertainlydoes．repliedJill．Afterhearingaboutaremarkablenewproduct．JillfinallygotupthenervetoaskmeifI’deverthoughtaboutgettingahearingaid．NowayIsaid．Itwouldmakemelook20yearsolder．Nonoshereplied．Thisisentirelydifferent．It’sCrystalEar! Jillwasright．CrystalEarisdifferent—nottheold.Styledbodywornover-the．earaidbut alladvancedpersonalsoundsystemsosmallthatit’slikecontacts隐形眼镜foryourears．AndCrystalEarissuper-sensitiveandpowerful．too．Youwillhearsoundsyourearshavebeenmissingforyears．CrystalEarwillmakespeech10uderandthesoundispureaddnatural． Icouldn’tbelievehowtinyitis．Itissmallerthanthetipofmylittlefingerandit’salmostinvisibleWhenworn．Therearenowiresnobehind—the．eardevice．Putitinyourearanditsready—to-wearmold形状fitscomfortably．Sinceit’snottooloudortootightyoumayevenforgetthatyou’rewearingit!Useitatworkoratplay．AndifyourhearingproblemisworseincertainsituationsuseCrystalEaronlywhenyouneedit． HearinglosswhichOccurstypicallypriortoteenageyearsprogressesthroughoutone’slifetime．A1thoughhearinglossisnowtheworld’snumberonehealthproblemnearly90percentofpeoplesufferinghearing10SSchoosetoleavetheproblemuntreated．Formanymillionstreatinghearing10SSinaconventionalwaycaninvolvenumerousofficevisitsexpensivetestingandadjustmentstofityourear．ThankstoCrystalEarthesoundsolutionisnowconvenient． Almost90percentofpeoplewithmildhearinglossandmillionsmorewithjustalittlehearingdrop-off下降canbedramaticallyhelpedwithCrystalEar．Moreoveritssuperiordesignisenergy-efficientsobatteriescanlastmonths．CrystalEarisnowavailabletohelpthesepeopletreattheirhearinglosswithasmallhearingamplifier放大器． OnespecialfeatureofCrystalEaristhat
第三篇TheBookofLife Sofarscientistshavenamedabout1.8millionlivingspecies物种andthat’sjustafractionofwhatprobablyexistsonEarth.Withsomanyplantsanimalsandothercreaturescoveringtheplanetitcanbetoughtofigureoutwhattypeofspiderismovingupyourlegorwhatkindofbirdisflyingby. Asoon-to-be-launchedWebsitemighthelp.Aninternationalteamofresearchershas announcedthecreationofaWeb-basedEncyclopediaofLifeEoL.TheprojectaimstocatalogeveryspeciesonEarthinasingleeasy-to-usereferenceguide. Togettheencyclopediastartedthecreatorswilluseinformationfromscientificdatabasesthatalreadyexist.Andeventuallyinspecialsectionsofthesitenonscientistswithspecializedknowledgewillgettojoinin.Bird-watchersforexamplewillbeabletoinputwhichbirdsthey’veseenandwhere.Thetechnologyforthiskindoftoolhasonlyrecentlybecomeavailable. AstheEoLdevelopsyoumightfinditusefulforschoolprojects.Thesitewillfeaturespecialpagesforkidswhoarestudyingecosystems生态系统intheirneighborhoods.Tomakesuretheencyclopediaisaccuratescientistswillreviewmuchoftheinformationaddedtoit.Peoplewhovisitthesitewillbeabletochoosetoleaveoutpagesthathaven’tbeenreviewed. AnotherconvenientfeatureoftheEoListhatyou’llbeabletopickthelevelofdetailyouseetomatchyourinterestsageandcurrentknowledge.Ifyouwantedtolearnaboutbearsforascienceclassreportforexampleyoucouldusethenovicesettingtogetbasicinformationabouttheanimals.Ontheexpertsettingontheotherhandyoucouldgetmuchmoredetailedinformationaboutthehistoryliteratureandexplorationofbears. Itnowtakesyearsforscientiststocollectallthedatatheyneedtodescribeandanalyzespecies.ThecreatorsoftheEncyclopediaofLifehopethattheirnewtoolwillspeedthatprocess.ThegoalofthecreatingoftheEoListo
Thechairman{{U}}proposed{{/U}}thatweshouldstopthemeeting
AboutonemillionAmericansarediagnosed{{U}}annually{{/U}}withskincancer．
SmokingCanIncreaseDepressiveSymptomsinTeens Whilesometeenagersmaypuffoncigarettestoself-medicate自我治疗againstthebluesscientistsattheUniversityofTorontoandtheUniversityofMontrealhavefoundthatsmokingmayactually__51_depressivesymptomsinsometeens. Thisobservationalstudyisoneofthefewtoexaminetheperceived_52__benefitsofsmokingamongteenssaysleadresearcherMichaelChaitonaresearchassociateattheOntarioTobaccoResearchUnitoftheUniversityofToronto._53__cigarettesmayappeartohaveself-medicatingeffectsortoimprovemoodinthelong_54__wefoundthatteenswhostartedtosmokereportedhigherdepressivesymptoms. Aspartofthestudysome662highschoolteenagerscompletedupto20questionnairesabouttheiruseofcigarettesto_55___mood.SecondaryschoolswereselectedtoprovideamixofFrenchandEnglishparticipantsurbanandruralschoolsandschools_56__inhighmoderateandlowsocioeconomicneighborhoods. Participantsweredividedintothree_57___:neversmokers;smokerswhodidnotusecigarettestoself-medicateimprovemoodorphysical_58__;smokerswhousedcigarettestoself-medicate.Depressivesymptomsweremeasuredusingascalethataskedhowoftenparticipantsfelttootiredtodothings;had_59__goingtosleeporstayingasleep;feltunhappysadordepressed;felthopless aboutthefuture;feltvexedantsyortense;andworriedtoomuchaboutthings. Smokerswhousedcigarettesasmood_60__hadhigherrisksofelevated提升depressivesymptoms_61__teenswhohadneversmokedsaysco-researcherJenniferO’LoughlinaprofessorattheUniversityofMontrealDepartmentofSocialandPreventiveMedicine.Ourstudyfoundthatteensmokerswhoreportedemotionalbenefitsfromsmokingare_62__higherriskofdevelopingdepressivesymptoms. The_63__betweendepressionandsmokingexits_64__amongteensthatusecigarettestofeelbetter.It’s_65__toemphasizethatdepressivesymptomscoreswerehigheramongteenagerswhoreportedemotionalbenefitsfromsmokingaftertheybegantosmokesaysDr.Chaiton.
第一篇U．S．BlacksHard?hitbyCancer DeathratesforcancerarefallingforallAmericans．butblackAmericansarestillmorelikelytodieofcancerthanwhitestheAmericanCancerSocietysaidMonday Inaspecialreportoncancerandblackstheorganizationsaidblacksareusuallydiagnosedwithcancerlaterthanwhitesandtheyaremorelikelytodieofthedisease． Thiscouldbebecauseofunequal不平等的accesstomedicalCareBecauseblacksaremorelikelytohaveotherdiseasesaswellandperhapsbecauseofdifferencesinthebiology生物学ofthecancanceritselfthereportadded． IngeneralblackAmericanshavelesshopeofsurvivingfiveyearsafterdiagnosisthailwhitesforallcancersitesandallstagesofdiagnosis．thereportsaid． IndescribingcancerstatisticsforblackAmericansthisreportrecognizesthatmanyofthedifferencesassociatedwithracemaybecausedbyunfairsocialandeconomicdifferencesandunequalaccesstomedicalcare．’ Thecancersocietysaidblacksshouldbeencouragedtogetcheck-ups体格检查earlierWhencancerismoretreatable．anditsaidmoreresearchisneededtoseeifbiologicaldifferencesplayarole． ‘‘Thenewstatisticsemphasizethecontinuingimportanceofwipingouttheseunfairsocialdifferencesthroughpublicpolicyandeducationeffortstheorganizationsaidinastatement． Butitalsonoteda出opincancerdeathrates． CancerdeathratesinbothsexesforallsitescombinedhavedroppedgreatlyamongblackAmericanssince1992ashaveincidencerates发生率saidthereport．’ WhichmayNOTbeareasonforhighercancerdeathratesamongUSblacks?
MotherNatureShowsHerStrength Tornadoes龙卷风andheavythunderstormsmovedacrosstheGreatLakesandintoTrumbullCountyonSaturdayevening．Thestormsweredramaticanddangerous． GeorgeSnyderwasdrivingthefiretruckdownRoute88whenhefirstnoticedthatafunnel漏斗状的cloudwasbehindhim．Istoppedthetruckandwatchedthefunnelcloud．Itwasabout100feetoffthegroundandIsawitgoupanddownforawhile．ItwasmovingtowardBradleyRoadandthensuddenlyitdisappeared．Snydersaid． SnyderonlysawoneofthefunnelcloudsthatpassedthroughnortheasternOhioonSaturday．InTrumbullCountyatornadoturnedtreesontotheirsides．SometreesfeelontohousesandCars．Othertreesfellintotelephoneandelectricalwiresastheywentdown． AmandaSymcheckwashavingapartywhenthestormbegan．Iknewsomethingwaswrongshesaid．Isawtheskygogreenandpink粉红色．Thenitsoundedlikeatrainrushingtowardthehouse．Istartedcryingandtoldeveryonetogotothebasementforprotection． Thetornadocausedalotofdamagetocarsandhousesinthearea．Itwilltakealongtimeandmuchmoneytorepaireverything．Therewasalsoseriouswaterdamagefromthethunderstorms．Theheavyrainsandhighwindcausedthepowertogooutinmanyhomes? Thestormscausedseriousfloodinginareasneartheriver．MorethanfourinchesofrainfellinpartsofTrumbullCounty．Theriverwassohightthatthewaterranintostreetsandhouses．ManystreetshadtobeclosedtoCarsandtrucksbecauseofthehighwater．’Thismadeitdifficultforfiretrucks．policecarsandotherrescuevehiclestohelppeoplewhowereintrouble? Manypeoplewholiveneartheriverhadtoleavetheirhomesfortheirownsafety．Somepeoplereportedfivefeetofwaterintheirhomes．Localandstateofficialsopenedemergencysheltersforthepeoplewhowereevacuated撤走．TheRedCrossservedmealstothem． ThiswasareallyintensestormsaidSnyder．’PeoplewereafraidMotherNaturecallbefierce．Wewereluckythistime．Noonewaskilled． Severalpeopleweremissingduringthestorm．
Wewilltakeyourrecentillnessinto{{U}}consideration{{/U}}whenmarkingyourexams
第三篇TheBookofLife Sofarscientistshavenamedabout1.8millionlivingspecies物种andthat’sjustafractionofwhatprobablyexistsonEarth.Withsomanyplantsanimalsandothercreaturescoveringtheplanetitcanbetoughtofigureoutwhattypeofspiderismovingupyourlegorwhatkindofbirdisflyingby. Asoon-to-be-launchedWebsitemighthelp.Aninternationalteamofresearchershas announcedthecreationofaWeb-basedEncyclopediaofLifeEoL.TheprojectaimstocatalogeveryspeciesonEarthinasingleeasy-to-usereferenceguide. Togettheencyclopediastartedthecreatorswilluseinformationfromscientificdatabasesthatalreadyexist.Andeventuallyinspecialsectionsofthesitenonscientistswithspecializedknowledgewillgettojoinin.Bird-watchersforexamplewillbeabletoinputwhichbirdsthey’veseenandwhere.Thetechnologyforthiskindoftoolhasonlyrecentlybecomeavailable. AstheEoLdevelopsyoumightfinditusefulforschoolprojects.Thesitewillfeaturespecialpagesforkidswhoarestudyingecosystems生态系统intheirneighborhoods.Tomakesuretheencyclopediaisaccuratescientistswillreviewmuchoftheinformationaddedtoit.Peoplewhovisitthesitewillbeabletochoosetoleaveoutpagesthathaven’tbeenreviewed. AnotherconvenientfeatureoftheEoListhatyou’llbeabletopickthelevelofdetailyouseetomatchyourinterestsageandcurrentknowledge.Ifyouwantedtolearnaboutbearsforascienceclassreportforexampleyoucouldusethenovicesettingtogetbasicinformationabouttheanimals.Ontheexpertsettingontheotherhandyoucouldgetmuchmoredetailedinformationaboutthehistoryliteratureandexplorationofbears. Itnowtakesyearsforscientiststocollectallthedatatheyneedtodescribeandanalyzespecies.ThecreatorsoftheEncyclopediaofLifehopethattheirnewtoolwillspeedthatprocess.Thewordnoviceinparagraph5couldbebestreplacedby
Theeconomycontinuedto{{U}}exhibit{{/U}}signsofdeclineinSeptember．
第二篇Cellphones:hanguporkeeptalking Millionsofpeopleareusingcellphonestoday.Inmanyplacesitisactuallyconsideredunusualnottouseone.Inmanycountriescellphonesareverypopularwithyoungpeople.Theyfindthatthephonesaremorethanameansofcommunication—havingamobilephoneshowsthattheyarecoolandconnected. Theexplosionsaroundtheworldinmobilephoneusemakesomehealthprofessionalsworried.Somedoctorsareconcernedthatinthefutremanypeoplemaysufferhealthproblemsfromtheuseofmobilephones.InEnglandtherehasbeenaseriousdebateaboutthisissue.Mobilephonecompaniesareworriedaboutthenegativepublicityofsuchideas.Theysaythatthereisnoproofthatmobilephonesarebadforyourhealth. Ontheotherhandwhydosomemedicalstudiesshowchangesinthebraincellsofsomepeoplewhousemobilephones?Signsofchangeinthetissuesofthebrainandheadcanbedetectedwithmodernscanning扫描equipment.Inonecaseatravelingsalesmanhadtoretireatayoungagebecauseofseriousmemoryloss.Hecouldn’trememberevensimpletasks.Hewouldoftenforgetthenameofhisownson.Thismanusedtotalkonhismobilephoneforaboutsixhoursadayeverydayofhisworkingweekforacoupleofyears.Hisfamilydoctorblamedhismobilephoneusebuthisemployer’sdoctordidn’tagree. Whatisitthatmakesmobilephonespotentiallyharmful?Theanswerisradiation.High-techmachinescandetectverysmallamountsofradiationfrommobilephones.Mobilephonecompaniesagreethatthereissomeradiationbuttheysaytheamountistoosmalltoworryabout. Asthediscussionabouttheirsafetycontinuesitappearsthatit’sbesttousemobilephoneslessoften.Useyourregularphoneifyouwanttotalkforalongtime.Useyourmobilephoneonlywhenyoureallyneedit.Mobilephonescanbeveryusefulandconvenientespeciallyinemergencies.Inthefuturemobilephonesmayhaveawarninglabelthatsaystheyarebadforyourhealth.Sofornowit’swisenottouseyourmobilephonetoooften.Thesalesmanretiredyoungbecause
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