首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
A industrially polluted soils B rock and soil chemistry C naturally polluted soils D the pathways...
查看本题答案
包含此试题的试卷
综合类《填空集》真题及答案
点击查看
你可能感兴趣的试题
A.industriallypollutedsoilsB.rockandsoilchemistryC
A.industriallypollutedsoilsB.rockandsoilchemistryC
A.industriallypollutedsoils??B.rockandsoilchemistr
AindustriallypollutedsoilsBrockandsoilchemistryCna
A.industriallypollutedsoils??B.rockandsoilchemistr
A.industriallypollutedsoils??B.rockandsoilchemistr
A.industriallypollutedsoilsB.rockandsoilchemistryC
??A.industriallypollutedsoils??B.rockand soilchem
??A.industriallypollutedsoils??B.rockand soilchem
AindustriallypollutedsoilsBrockandsoilchemistryCna
A.industriallypollutedsoils??B.rockandsoilchemistr
A.industriallypollutedsoilsB.rockandsoilchemistryC
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1346段每段选择1个
AindustriallypollutedsoilsBrockandsoilchemistryCna
??A.industriallypollutedsoils??B.rockand soilchem
??A.industriallypollutedsoils??B.rockand soilchem
A.industriallypollutedsoils??B.rockandsoilchemistr
A.industriallypollutedsoils??B.rockandsoilchemistr
A.industriallypollutedsoils??B.rockandsoilchemistr
A.industriallypollutedsoils??B.rockandsoilchemistr
热门试题
更多
AboutonemillionAmericansarediagnosedannuallywithskincancer.
WhatIstheCoolestGasintheUniverseWhatisthecoldestairtemperatureeverrecordedontheEarthWherewasthislowtemperaturerecordedThecoldestrecordedtemperatureonEarthwas-91℃which51inAntarcticain1983.Weencounteraninterestingsituationwhenwediscusstemperaturesin52.TemperaturesinEarthorbitactuallyrangefromabout+120~Cto-120~C.Thetemperaturedependsupon53youareindirectsunlightorshade.Obviously-120℃iscolderthanourbodycansafelyendure.ThankNASAscienceforwell-designedspace54thatprotectastronautsfromthesetemperatureextremes.Thespacetemperaturesjustdiscussedaffectonlyourareaofthesolar55.ObviouslyitishotterclosertotheSunandcolderaswetravelawayfromtheSun.AstronomersestimatetemperaturesatPlutoareabout-210℃.HowcoldisthelowestestimatedtemperatureintheentireuniverseAgainitdependsuponyour56.Wearetaughtitissupposedly57tohaveatemperaturebelowabsolutezerowhichis-273℃atwhichatomsdonotmove.TwoscientistswhosenamesareCornellandWiemanhavesuccessfullycooleddownagastemperaturebarely58absolutezero.TheywonaNobelPrizeinPhysicsin2001fortheirworknotadiscoveryinthiscar.Whyisthetwoscientists’worksoimportanttoscienceInthe1920sSatyendraNathBosewasstudyinganinteresting59aboutparticleswenowcallphotons.Bosehadtrouble60otherscientiststobelieve61hecontactedAlbertEinstein.Einstein’scalculationshelpedhimtheorize62behaveasBosethoughtbutonlyatverycoldtemperatures.Scientistshavealsodiscoveredthat63atomscanhelpthemmaketheworld’satomicclocksevenmoreaccurate.Theseclocksaresoaccuratetodaytheywouldonlyloseonesecond64sixmillionyears!Suchaccuracywillhelpustravelinspacebecausedistanceisvelocitytimestimed=v×t.Withthelongdistancesinvolvedinspace65toknowtimeasaccuratelyaspossibletogetaccuratedistance.
Ifheadachesonlyoccuratnightlackoffreshairisoftenthecause.
Whilewedon'tagreewecontinuetobefriends.
ContinuingEducation1Peoplearoundtheworldagreethateducationisnotanendbutameanstoanend.Inotherwordswedonoteducatestudentsonlyfortheaimofeducatingthem.Ourpurposeistofitthemforlife.Lifeisvaried;soiseducation.2IdeasabouteducationaremorespecifiedintheUnitedStates.Educationtodayisnotjustahighschooldiplomaoracollegedegree.Manyadultsarenotinterestedingoingtocollege.Theyareinterestedinotherkindsoflearning.Forthemlearningdoesnotendwithadiploma.3Continuingeducationgivestheseadultstheopportunitytoincreasetheirknowledgeabouttheirownfieldortolearnaboutanewfield.Italsogivesthemachancetoimprovetheiroldskillsortolearnnewones.Scientistsmechanicssecretariesbarbersandcookscantakeclassestoimprovetheirworkskills.Iftheyknowmoreorlearnmoretheycangetabetterjoborearnmoremoney.4Continuingeducationclassesgivemoreadultsthechancetolearnnewskills.Thereisusuallyalargevarietyofclassestochoosefrom:typingforeigncookingphotographyautorepairfurniturerepairorswimming.Thereareonlysomeoftheclassesavailable.5Someadultstakeclassesforfunorbecausetheclasswillbeusefulforthem.Otheradultstakecontinuingeducationclassestoimprovetheirownlivesbecausetheywanttofeelbetteraboutthemselves.6Almostanycommunitycollegeorpublicschoolsystemhasacontinuingeducationprogram.Thereareclassesinschoolscommunitybuildingsorchurches.Mostclassesareintheeveningssoworkingpeoplecanattend.Theclassesareusuallysmallandtheyareinexpensive.AIdeasbouteducationintheU.S.BAdvantagesofcontinuingeducationCGoodopportunitytolearnnewskillsDMostclassesareintheeveningEWorkingpeoplehaveeasyaccessFEducationhelpscooksfindabetterjobParagraph3______
AadultsshouldgoonlearningaftergraduatingfromschoolBtoenlargetheirknowledgeandlearnnewskillsCbycommunitycollegesandpublicschoolsDonlyforworkingpeopleEContinuingEducationClassesFTheImportanceofaCollegeDegreeThepurposeforadultstocontinuetheireducationis______.
DyslexiaAsmanyas20%ofallchildrenintheUnitedStatessufferfromsomeformofthelearningdisordercalleddyslexia.Expertsondyslexiasaythattheproblemisnotdisease.Theysaythatpersonswithdyslexiauseinformationinadifferentway.Oneoftheworld’sgreatthinkersandscientistsAlbertEinsteinwasdyslexic.Einsteinsaidthatheneverthoughtinwordsthewaythatmostpeopledo.Hesaidthathethoughtinpicturesinstead.TheAmericaninventorThomasEdisonwasalsodyslexic.DyslexiafirstwasrecognizedinEuropeandtheUnitedStatesmorethan80yearago.Manyyearspassedbeforedoctorsdiscoveredthatpersonswiththedisorderwerenotmentallyslowordisabled.Thedoctorsfoundthatthebrainsofpersonswithdyslexiaaredifferent.Inmostpeopletheleftsideofthebrainthepartthatcontrolslanguageislargerthantherightside.Inpersonswithdyslexiatherightsideofthebrainisbigger.Doctorsarenotsurewhatcausesthisdifference.Howeverresearchhasshownthatdyslexiaismorecommoninmalesthatinfemalesanditisfoundmoreofteninpersonswhoareleft-handed.Nooneknowsthecauseofdyslexiabutsomescientistsbelievethatitmayresultfromchemicalchangesinababy’sbodylongbeforeitisborn.Theyaretryingtofindwaystoteachpersonswithdyslexia.Dyslexicpersonsthinkdifferentlyandneedspecialkindsofteachinghelp.Aftertheyhavesolvedtheirproblemswithlanguagetheyoftenshowthemselvestobeespeciallyintelligentorcreative.OneoutoffiveAmericanchildrensuffersfromdyslexi
U.S.toStart$3.2BillionChildHealthStudyinJanuaryAstudythatwillcost$3.2billionandlastmorethantwodecadestotrackthehealthof100000U.S.childrenfrombeforebirthtoage21willbelaunchedinJanuaryU.S.healthofficialssaidonFriday.OfficialsfromtheU.S.government’sNationalInstitutesofHealthsaidtheyhopethestudytobeconductedat105locationsthroughouttheUnitedStatescanhelpidentifyearly-lifeinfluencesthataffectlaterdevelopmentwiththegoaloflearningnewwaystotreatorpreventillness.Thestudywillexaminehereditaryandenvironmentalfactorssuchasexposuretocertainchemicalsthataffecthealth.ResearcherswillcollectgeneticandbiologicalsamplesfrompeopleinthestudyaswellassamplesfromthehomesofthewomenandtheirbabiesincludingairwaterdustandmaterialsusedtoconstructtheirresidencestheNIHsaid.Officialssaidmorethan$200millionhasbeenspentalreadyandthestudyisprojectedtocost$3.2billion.Weanticipatethatinthelongtermwhatwelearnfromthestudywillresultinasignificantsavingsinthenation’shealthcarecostsDr.DuaneAlexanderwhoheadstheNIH’sEuniceKennedyShriverNationalInstituteofChildHealthandHumanDevelopmenttoldreporters.ThestudywillbegininJanuarywhentheUniversityofNorthCarolinaandtheMountSinaiSchoolofMedicineinNewYorkstartsigninguppregnantwomenwhosebabieswillthenbefollowedtoage21.Someoftheearlyfindingswillbeaboutfactorsbehindpre-termbirthwhichhasbecomemorecommoninrecentyearsaccordingtoDr.PeterScheidoftheNIHwhoheadsthestudy.ThepeopletakingpartwillbefromruralurbanandsuburbanareasfromallincomeandeducationallevelsandfromallracialgroupstheNIHsaid.ResearcherswillcollectallthefollowingEXCEPT______.
WhatIstheCoolestGasintheUniverseWhatisthecoldestairtemperatureeverrecordedontheEarthWherewasthislowtemperaturerecordedThecoldestrecordedtemperatureonEarthwas-91℃which51inAntarcticain1983.Weencounteraninterestingsituationwhenwediscusstemperaturesin52.TemperaturesinEarthorbitactuallyrangefromabout+120~Cto-120~C.Thetemperaturedependsupon53youareindirectsunlightorshade.Obviously-120℃iscolderthanourbodycansafelyendure.ThankNASAscienceforwell-designedspace54thatprotectastronautsfromthesetemperatureextremes.Thespacetemperaturesjustdiscussedaffectonlyourareaofthesolar55.ObviouslyitishotterclosertotheSunandcolderaswetravelawayfromtheSun.AstronomersestimatetemperaturesatPlutoareabout-210℃.HowcoldisthelowestestimatedtemperatureintheentireuniverseAgainitdependsuponyour56.Wearetaughtitissupposedly57tohaveatemperaturebelowabsolutezerowhichis-273℃atwhichatomsdonotmove.TwoscientistswhosenamesareCornellandWiemanhavesuccessfullycooleddownagastemperaturebarely58absolutezero.TheywonaNobelPrizeinPhysicsin2001fortheirworknotadiscoveryinthiscar.Whyisthetwoscientists’worksoimportanttoscienceInthe1920sSatyendraNathBosewasstudyinganinteresting59aboutparticleswenowcallphotons.Bosehadtrouble60otherscientiststobelieve61hecontactedAlbertEinstein.Einstein’scalculationshelpedhimtheorize62behaveasBosethoughtbutonlyatverycoldtemperatures.Scientistshavealsodiscoveredthat63atomscanhelpthemmaketheworld’satomicclocksevenmoreaccurate.Theseclocksaresoaccuratetodaytheywouldonlyloseonesecond64sixmillionyears!Suchaccuracywillhelpustravelinspacebecausedistanceisvelocitytimestimed=v×t.Withthelongdistancesinvolvedinspace65toknowtimeasaccuratelyaspossibletogetaccuratedistance.
WomenStayinginMini-SkirtsforLongerBritishwomenarehappynowadaystowearmini-skirtsupuntiltheageof40accordingtoresearchbyDebenhams.Just20yearsagofewwomenwoulddaretowearamini-skirtaftertheageof33thestoresaid.Itshowsthatwomennowhaveanincreasingconfidenceintheirbodiesandarehappytodressaccordinglyitaddedinastatement.Ifthistrendcontinuesthere’snodoubtthatwithinthenextdecadewomenintheirmid40sandearly50swillrightlyregardamini-skirtasanessentialpartoftheireverydaywardrobe.Thefiguresemergedwhenthestoreexaminedthelatestageprofileofwomenbuyingshort36-cmskirtsoverthepastsixmonths.Theirresultsshowthatithasjumpedfromanaverageageof36-years-oldatthestartofmillenniumto40today.Figuresfrom1980showedthatonaveragewomenstoppedbuyingminiswhentheyreached33yearsoldafigureunchangedfromthemid-1960s.ThestorenotedthatexpertsbelievethatthepopularityofintensivegymcultureprovidingwomenwithwelltonedbodiesforlongermaybethereasonTheincreasingnumberofBritishwomenlivingontheirownmayalsobeafactor.TheDebenhams’studyshowedthatamodernwoman’sloveaffairwithamini-skirtbeginsattheageof14butthatshedoesn’tbuyherfirstoneuntiltheageof16.Insteadshefloutsschoolrulesbyrollingupthewaistbandoftheschooluniformtogivetheimpressionofwearingaminiskirt.Skirtsgetshorterbetweentheagesof16and19reducinginsizefrom46to36cmbeforereachingtheirshortestamere32cmattheageof23.Skirtlengthincreasesslightlybetweentheagesof23and27risingto37cmpossiblyduetogirlsbeingintheirfirststablerelationshipwithnodesiretoattractattentionthestoresaid.Howeveritfoundshortskirtssuddenlyzoominpopularitybetweentheagesof27and34asthoseearlyrelationshipsbreakdownandnewrelationshipsareformed.Themoveintolongerskirtsbeginsirreversiblyat40yearsoldwhen46-cmskirtsstillslightlyabovethekneearethenorm.Fromthenonskirtlengthincreasesdramaticallyfallingbelowthekneefortheveryfirsttimesinceschooldaysattheageof42.Whichofthefollowingstatementsaboutthelengthofthemini-skirtsistrue
WhatIstheCoolestGasintheUniverseWhatisthecoldestairtemperatureeverrecordedontheEarthWherewasthislowtemperaturerecordedThecoldestrecordedtemperatureonEarthwas-91℃which51inAntarcticain1983.Weencounteraninterestingsituationwhenwediscusstemperaturesin52.TemperaturesinEarthorbitactuallyrangefromabout+120~Cto-120~C.Thetemperaturedependsupon53youareindirectsunlightorshade.Obviously-120℃iscolderthanourbodycansafelyendure.ThankNASAscienceforwell-designedspace54thatprotectastronautsfromthesetemperatureextremes.Thespacetemperaturesjustdiscussedaffectonlyourareaofthesolar55.ObviouslyitishotterclosertotheSunandcolderaswetravelawayfromtheSun.AstronomersestimatetemperaturesatPlutoareabout-210℃.HowcoldisthelowestestimatedtemperatureintheentireuniverseAgainitdependsuponyour56.Wearetaughtitissupposedly57tohaveatemperaturebelowabsolutezerowhichis-273℃atwhichatomsdonotmove.TwoscientistswhosenamesareCornellandWiemanhavesuccessfullycooleddownagastemperaturebarely58absolutezero.TheywonaNobelPrizeinPhysicsin2001fortheirworknotadiscoveryinthiscar.Whyisthetwoscientists’worksoimportanttoscienceInthe1920sSatyendraNathBosewasstudyinganinteresting59aboutparticleswenowcallphotons.Bosehadtrouble60otherscientiststobelieve61hecontactedAlbertEinstein.Einstein’scalculationshelpedhimtheorize62behaveasBosethoughtbutonlyatverycoldtemperatures.Scientistshavealsodiscoveredthat63atomscanhelpthemmaketheworld’satomicclocksevenmoreaccurate.Theseclocksaresoaccuratetodaytheywouldonlyloseonesecond64sixmillionyears!Suchaccuracywillhelpustravelinspacebecausedistanceisvelocitytimestimed=v×t.Withthelongdistancesinvolvedinspace65toknowtimeasaccuratelyaspossibletogetaccuratedistance.
DyslexiaAsmanyas20%ofallchildrenintheUnitedStatessufferfromsomeformofthelearningdisordercalleddyslexia.Expertsondyslexiasaythattheproblemisnotdisease.Theysaythatpersonswithdyslexiauseinformationinadifferentway.Oneoftheworld’sgreatthinkersandscientistsAlbertEinsteinwasdyslexic.Einsteinsaidthatheneverthoughtinwordsthewaythatmostpeopledo.Hesaidthathethoughtinpicturesinstead.TheAmericaninventorThomasEdisonwasalsodyslexic.DyslexiafirstwasrecognizedinEuropeandtheUnitedStatesmorethan80yearago.Manyyearspassedbeforedoctorsdiscoveredthatpersonswiththedisorderwerenotmentallyslowordisabled.Thedoctorsfoundthatthebrainsofpersonswithdyslexiaaredifferent.Inmostpeopletheleftsideofthebrainthepartthatcontrolslanguageislargerthantherightside.Inpersonswithdyslexiatherightsideofthebrainisbigger.Doctorsarenotsurewhatcausesthisdifference.Howeverresearchhasshownthatdyslexiaismorecommoninmalesthatinfemalesanditisfoundmoreofteninpersonswhoareleft-handed.Nooneknowsthecauseofdyslexiabutsomescientistsbelievethatitmayresultfromchemicalchangesinababy’sbodylongbeforeitisborn.Theyaretryingtofindwaystoteachpersonswithdyslexia.Dyslexicpersonsthinkdifferentlyandneedspecialkindsofteachinghelp.Aftertheyhavesolvedtheirproblemswithlanguagetheyoftenshowthemselvestobeespeciallyintelligentorcreative.Generallyspeakingdyslexiaismorecommoninleft-handedmalesthatinright-handedfemales.
TheStateofMarriageTodayIstheresomethingseriouslywrongwithmarriagetodayDuringthepast50yearstherateofdivorceintheUnitedStateshasexploded:almost50%ofmarriagesendindivorcenowandtheevidencesuggestsitisgoingtogetworse.IfthistrendcontinuesitwillleadtothebreakupofthefamilyaccordingtoaspokespersonfortheNationalFamilyAssociation.Somefuturistspredictthatin100yearstheaverageAmericanwillmarryatleastfourtimesandextramaritalaffairswillbeevenmorecommonthantheyarenow.ButwhatarethereasonsforthisandisthepicturereallysogloomyTheanswertothefirstquestionisreallyquitesimple:marriageisnolongerthenecessityitoncewas.Theinstitutionofmarriagehasbeenbasedforyearspartlyoneconomicneed.Womenusedtobeeconomicallydependentontheirhusbandsastheyusuallydidn’thavejobsoutsidethehome.Butwiththerisingnumberofwomeninwell-payingjobsthisisnolongerthecasesotheydon’tfeelthattheyneedtostayinafailingmarriage.Inanswertothesecondquestiontheoutlookmaynotbeaspessimisticasitseems.Whiletherateofdivorcehasrisentherateofcouplesmarryinghasneveractuallyfallenverymuchsomarriageisstillquitepopular.Inadditiontothismanycouplesnowcohabitanddon’tbothertomarry.Thesecouplesareeffectivelymarriedbuttheydonotappearineitherthemarriageordivorcestatistics.Infactmorethan50%offirstmarriagessurvive.Thestatisticsaredeceptivebecausethereisahighernumberofdivorcesinsecondandthirdmarriagesthaninfirstmarriages.SoismarriagereallyanoutdatedinstitutionThefactthatmostpeoplestillgetmarriedindicatesthatitisn’t.Anditisalsotruethatmarriedcoupleshaveahealthierlifethansinglepeople:theysufferlessfromstressanditsconsequencessuchasheartproblemsandmarriedmengenerallyconsiderthemselvesmorecontentedthantheirsinglecounterparts.Perhapsthekeyistofindoutwhatmakesasuccessfulmarriageandapplyittoallofourrelationships!WhichistrueabouttheproblemofmarriageintheUnitedStatestoday
Theirparentsoncelivedunderverysevereconditions.
DyslexiaAsmanyas20%ofallchildrenintheUnitedStatessufferfromsomeformofthelearningdisordercalleddyslexia.Expertsondyslexiasaythattheproblemisnotdisease.Theysaythatpersonswithdyslexiauseinformationinadifferentway.Oneoftheworld’sgreatthinkersandscientistsAlbertEinsteinwasdyslexic.Einsteinsaidthatheneverthoughtinwordsthewaythatmostpeopledo.Hesaidthathethoughtinpicturesinstead.TheAmericaninventorThomasEdisonwasalsodyslexic.DyslexiafirstwasrecognizedinEuropeandtheUnitedStatesmorethan80yearago.Manyyearspassedbeforedoctorsdiscoveredthatpersonswiththedisorderwerenotmentallyslowordisabled.Thedoctorsfoundthatthebrainsofpersonswithdyslexiaaredifferent.Inmostpeopletheleftsideofthebrainthepartthatcontrolslanguageislargerthantherightside.Inpersonswithdyslexiatherightsideofthebrainisbigger.Doctorsarenotsurewhatcausesthisdifference.Howeverresearchhasshownthatdyslexiaismorecommoninmalesthatinfemalesanditisfoundmoreofteninpersonswhoareleft-handed.Nooneknowsthecauseofdyslexiabutsomescientistsbelievethatitmayresultfromchemicalchangesinababy’sbodylongbeforeitisborn.Theyaretryingtofindwaystoteachpersonswithdyslexia.Dyslexicpersonsthinkdifferentlyandneedspecialkindsofteachinghelp.Aftertheyhavesolvedtheirproblemswithlanguagetheyoftenshowthemselvestobeespeciallyintelligentorcreative.ThefirstcasesofdyslexiainEuropewerediscoveredlessthanacenturyago.
AntsasaBarometerofEcologicalChangeAtpicnicsantsarepests.Buttheyhavetheiruses.Inindustriessuchastrainingfarmingandforestrytheycanhelpgaugethehealthoftheenvironmentbyjustcrawlingaroundandbeingantsy.Ithasbeenrecognizedfordecadesthatants--whicharehighlysensitivetoecologicalchangecanprovideanear-perfectbarometerofthestateofanecosystem.Onlycertainspeciesforinstancewillcontinuetothriveataforestsitethathasbeenclearedoftrees.46.Andstillotherswillmoveinandtakeupresidence.Bylookingatwhichspeciespopulateadeforestedareascientistscandeterminehowstressedthelandis.47.Antsareusedsimplybecausetheyaresocommonandcomprisesomanyspecies.Whereminesitesarebeingrestoredforexamplesomeantspecieswillrecognizethestrippedlandmorequicklythanothers.48.AustralianminingcompanyCapricornCoalManagementhasbeensuccessfullyusingantsurveysforyearstodeterminetherateofrecoveryoflandthatitisreplantingnearitsGermanCreekmineinQueensland.Antsurveysalsohavebeenusedwithmine-siterecoveryprojectsinAfricaandBrazilwherewarmclimatesencouragedenseanddiverseantpopulations.WefounditworkedextremelywelltheresaysJonathanMajoraprofessorofenvironmentalbiology.YetthesurveysareperfectlysuitedtoclimatesthroughoutAsiahesaysbecauseantsaresocommonthroughouttheregion.AsMajorputsit:That’sthegreatthingaboutants.Antsurveysaresohighly-regardedasecologicalindicatorsthatgovernmentsworldwideaccepttheirresultswhenassessingtheenvironmentalimpactofminingandtreeharvesting.49WhynotBecausemanycompaniescan’taffordtheexpenseorthelaboratorytimeneededtosiftresultsforacomprehensivesurvey.Thecoststemsalsofromthescarcityofantspecialists.50.A.Thisallowedscientiststogaugethepaceandprogressoftheecologicalrecovery.B.Yetinotherbusinessessuchasfarmingandpropertydevelopmentantsurveysaren’tusedwidely.C.Employingthosepeopleareexpensive.D.Theydothisbysortingtheantscountingtheirnumbersandcomparingtheresultswiththoseofearliersurveys.E.Theevolutionofantspeciesmayhaveastrongimpactonourecosystem.F.Otherswilldieoutforlackoffoo
WhatIstheCoolestGasintheUniverseWhatisthecoldestairtemperatureeverrecordedontheEarthWherewasthislowtemperaturerecordedThecoldestrecordedtemperatureonEarthwas-91℃which51inAntarcticain1983.Weencounteraninterestingsituationwhenwediscusstemperaturesin52.TemperaturesinEarthorbitactuallyrangefromabout+120~Cto-120~C.Thetemperaturedependsupon53youareindirectsunlightorshade.Obviously-120℃iscolderthanourbodycansafelyendure.ThankNASAscienceforwell-designedspace54thatprotectastronautsfromthesetemperatureextremes.Thespacetemperaturesjustdiscussedaffectonlyourareaofthesolar55.ObviouslyitishotterclosertotheSunandcolderaswetravelawayfromtheSun.AstronomersestimatetemperaturesatPlutoareabout-210℃.HowcoldisthelowestestimatedtemperatureintheentireuniverseAgainitdependsuponyour56.Wearetaughtitissupposedly57tohaveatemperaturebelowabsolutezerowhichis-273℃atwhichatomsdonotmove.TwoscientistswhosenamesareCornellandWiemanhavesuccessfullycooleddownagastemperaturebarely58absolutezero.TheywonaNobelPrizeinPhysicsin2001fortheirworknotadiscoveryinthiscar.Whyisthetwoscientists’worksoimportanttoscienceInthe1920sSatyendraNathBosewasstudyinganinteresting59aboutparticleswenowcallphotons.Bosehadtrouble60otherscientiststobelieve61hecontactedAlbertEinstein.Einstein’scalculationshelpedhimtheorize62behaveasBosethoughtbutonlyatverycoldtemperatures.Scientistshavealsodiscoveredthat63atomscanhelpthemmaketheworld’satomicclocksevenmoreaccurate.Theseclocksaresoaccuratetodaytheywouldonlyloseonesecond64sixmillionyears!Suchaccuracywillhelpustravelinspacebecausedistanceisvelocitytimestimed=v×t.Withthelongdistancesinvolvedinspace65toknowtimeasaccuratelyaspossibletogetaccuratedistance.
U.S.toStart$3.2BillionChildHealthStudyinJanuaryAstudythatwillcost$3.2billionandlastmorethantwodecadestotrackthehealthof100000U.S.childrenfrombeforebirthtoage21willbelaunchedinJanuaryU.S.healthofficialssaidonFriday.OfficialsfromtheU.S.government’sNationalInstitutesofHealthsaidtheyhopethestudytobeconductedat105locationsthroughouttheUnitedStatescanhelpidentifyearly-lifeinfluencesthataffectlaterdevelopmentwiththegoaloflearningnewwaystotreatorpreventillness.Thestudywillexaminehereditaryandenvironmentalfactorssuchasexposuretocertainchemicalsthataffecthealth.ResearcherswillcollectgeneticandbiologicalsamplesfrompeopleinthestudyaswellassamplesfromthehomesofthewomenandtheirbabiesincludingairwaterdustandmaterialsusedtoconstructtheirresidencestheNIHsaid.Officialssaidmorethan$200millionhasbeenspentalreadyandthestudyisprojectedtocost$3.2billion.Weanticipatethatinthelongtermwhatwelearnfromthestudywillresultinasignificantsavingsinthenation’shealthcarecostsDr.DuaneAlexanderwhoheadstheNIH’sEuniceKennedyShriverNationalInstituteofChildHealthandHumanDevelopmenttoldreporters.ThestudywillbegininJanuarywhentheUniversityofNorthCarolinaandtheMountSinaiSchoolofMedicineinNewYorkstartsigninguppregnantwomenwhosebabieswillthenbefollowedtoage21.Someoftheearlyfindingswillbeaboutfactorsbehindpre-termbirthwhichhasbecomemorecommoninrecentyearsaccordingtoDr.PeterScheidoftheNIHwhoheadsthestudy.ThepeopletakingpartwillbefromruralurbanandsuburbanareasfromallincomeandeducationallevelsandfromallracialgroupstheNIHsaid.Thebabiesoftheparticipantswillbefollowed______.
Itseemshighlyunlikelythatshewillpasstheexam.
DyslexiaAsmanyas20%ofallchildrenintheUnitedStatessufferfromsomeformofthelearningdisordercalleddyslexia.Expertsondyslexiasaythattheproblemisnotdisease.Theysaythatpersonswithdyslexiauseinformationinadifferentway.Oneoftheworld’sgreatthinkersandscientistsAlbertEinsteinwasdyslexic.Einsteinsaidthatheneverthoughtinwordsthewaythatmostpeopledo.Hesaidthathethoughtinpicturesinstead.TheAmericaninventorThomasEdisonwasalsodyslexic.DyslexiafirstwasrecognizedinEuropeandtheUnitedStatesmorethan80yearago.Manyyearspassedbeforedoctorsdiscoveredthatpersonswiththedisorderwerenotmentallyslowordisabled.Thedoctorsfoundthatthebrainsofpersonswithdyslexiaaredifferent.Inmostpeopletheleftsideofthebrainthepartthatcontrolslanguageislargerthantherightside.Inpersonswithdyslexiatherightsideofthebrainisbigger.Doctorsarenotsurewhatcausesthisdifference.Howeverresearchhasshownthatdyslexiaismorecommoninmalesthatinfemalesanditisfoundmoreofteninpersonswhoareleft-handed.Nooneknowsthecauseofdyslexiabutsomescientistsbelievethatitmayresultfromchemicalchangesinababy’sbodylongbeforeitisborn.Theyaretryingtofindwaystoteachpersonswithdyslexia.Dyslexicpersonsthinkdifferentlyandneedspecialkindsofteachinghelp.Aftertheyhavesolvedtheirproblemswithlanguagetheyoftenshowthemselvestobeespeciallyintelligentorcreative.Dyslexicpeopleoftenturnouttobeintelligentorcreativeoncetheyhavelearnedtohandlelanguageproperly.
Haveyoutalkedtoherlately
7Theresearchershavejustcompletedastudyofdrivingsituations.
WomenStayinginMini-SkirtsforLongerBritishwomenarehappynowadaystowearmini-skirtsupuntiltheageof40accordingtoresearchbyDebenhams.Just20yearsagofewwomenwoulddaretowearamini-skirtaftertheageof33thestoresaid.Itshowsthatwomennowhaveanincreasingconfidenceintheirbodiesandarehappytodressaccordinglyitaddedinastatement.Ifthistrendcontinuesthere’snodoubtthatwithinthenextdecadewomenintheirmid40sandearly50swillrightlyregardamini-skirtasanessentialpartoftheireverydaywardrobe.Thefiguresemergedwhenthestoreexaminedthelatestageprofileofwomenbuyingshort36-cmskirtsoverthepastsixmonths.Theirresultsshowthatithasjumpedfromanaverageageof36-years-oldatthestartofmillenniumto40today.Figuresfrom1980showedthatonaveragewomenstoppedbuyingminiswhentheyreached33yearsoldafigureunchangedfromthemid-1960s.ThestorenotedthatexpertsbelievethatthepopularityofintensivegymcultureprovidingwomenwithwelltonedbodiesforlongermaybethereasonTheincreasingnumberofBritishwomenlivingontheirownmayalsobeafactor.TheDebenhams’studyshowedthatamodernwoman’sloveaffairwithamini-skirtbeginsattheageof14butthatshedoesn’tbuyherfirstoneuntiltheageof16.Insteadshefloutsschoolrulesbyrollingupthewaistbandoftheschooluniformtogivetheimpressionofwearingaminiskirt.Skirtsgetshorterbetweentheagesof16and19reducinginsizefrom46to36cmbeforereachingtheirshortestamere32cmattheageof23.Skirtlengthincreasesslightlybetweentheagesof23and27risingto37cmpossiblyduetogirlsbeingintheirfirststablerelationshipwithnodesiretoattractattentionthestoresaid.Howeveritfoundshortskirtssuddenlyzoominpopularitybetweentheagesof27and34asthoseearlyrelationshipsbreakdownandnewrelationshipsareformed.Themoveintolongerskirtsbeginsirreversiblyat40yearsoldwhen46-cmskirtsstillslightlyabovethekneearethenorm.Fromthenonskirtlengthincreasesdramaticallyfallingbelowthekneefortheveryfirsttimesinceschooldaysattheageof42.AccordingtothepassageBritishwomenarehappytowearmini-skirtsupuntilanoldagebecauseofthefollowingreasonsEXCEPT______.
TheStateofMarriageTodayIstheresomethingseriouslywrongwithmarriagetodayDuringthepast50yearstherateofdivorceintheUnitedStateshasexploded:almost50%ofmarriagesendindivorcenowandtheevidencesuggestsitisgoingtogetworse.IfthistrendcontinuesitwillleadtothebreakupofthefamilyaccordingtoaspokespersonfortheNationalFamilyAssociation.Somefuturistspredictthatin100yearstheaverageAmericanwillmarryatleastfourtimesandextramaritalaffairswillbeevenmorecommonthantheyarenow.ButwhatarethereasonsforthisandisthepicturereallysogloomyTheanswertothefirstquestionisreallyquitesimple:marriageisnolongerthenecessityitoncewas.Theinstitutionofmarriagehasbeenbasedforyearspartlyoneconomicneed.Womenusedtobeeconomicallydependentontheirhusbandsastheyusuallydidn’thavejobsoutsidethehome.Butwiththerisingnumberofwomeninwell-payingjobsthisisnolongerthecasesotheydon’tfeelthattheyneedtostayinafailingmarriage.Inanswertothesecondquestiontheoutlookmaynotbeaspessimisticasitseems.Whiletherateofdivorcehasrisentherateofcouplesmarryinghasneveractuallyfallenverymuchsomarriageisstillquitepopular.Inadditiontothismanycouplesnowcohabitanddon’tbothertomarry.Thesecouplesareeffectivelymarriedbuttheydonotappearineitherthemarriageordivorcestatistics.Infactmorethan50%offirstmarriagessurvive.Thestatisticsaredeceptivebecausethereisahighernumberofdivorcesinsecondandthirdmarriagesthaninfirstmarriages.SoismarriagereallyanoutdatedinstitutionThefactthatmostpeoplestillgetmarriedindicatesthatitisn’t.Anditisalsotruethatmarriedcoupleshaveahealthierlifethansinglepeople:theysufferlessfromstressanditsconsequencessuchasheartproblemsandmarriedmengenerallyconsiderthemselvesmorecontentedthantheirsinglecounterparts.Perhapsthekeyistofindoutwhatmakesasuccessfulmarriageandapplyittoallofourrelationships!WhichofthefollowingaboutmarriageisNOTmentionedinthepassage
TheStateofMarriageTodayIstheresomethingseriouslywrongwithmarriagetodayDuringthepast50yearstherateofdivorceintheUnitedStateshasexploded:almost50%ofmarriagesendindivorcenowandtheevidencesuggestsitisgoingtogetworse.IfthistrendcontinuesitwillleadtothebreakupofthefamilyaccordingtoaspokespersonfortheNationalFamilyAssociation.Somefuturistspredictthatin100yearstheaverageAmericanwillmarryatleastfourtimesandextramaritalaffairswillbeevenmorecommonthantheyarenow.ButwhatarethereasonsforthisandisthepicturereallysogloomyTheanswertothefirstquestionisreallyquitesimple:marriageisnolongerthenecessityitoncewas.Theinstitutionofmarriagehasbeenbasedforyearspartlyoneconomicneed.Womenusedtobeeconomicallydependentontheirhusbandsastheyusuallydidn’thavejobsoutsidethehome.Butwiththerisingnumberofwomeninwell-payingjobsthisisnolongerthecasesotheydon’tfeelthattheyneedtostayinafailingmarriage.Inanswertothesecondquestiontheoutlookmaynotbeaspessimisticasitseems.Whiletherateofdivorcehasrisentherateofcouplesmarryinghasneveractuallyfallenverymuchsomarriageisstillquitepopular.Inadditiontothismanycouplesnowcohabitanddon’tbothertomarry.Thesecouplesareeffectivelymarriedbuttheydonotappearineitherthemarriageordivorcestatistics.Infactmorethan50%offirstmarriagessurvive.Thestatisticsaredeceptivebecausethereisahighernumberofdivorcesinsecondandthirdmarriagesthaninfirstmarriages.SoismarriagereallyanoutdatedinstitutionThefactthatmostpeoplestillgetmarriedindicatesthatitisn’t.Anditisalsotruethatmarriedcoupleshaveahealthierlifethansinglepeople:theysufferlessfromstressanditsconsequencessuchasheartproblemsandmarriedmengenerallyconsiderthemselvesmorecontentedthantheirsinglecounterparts.Perhapsthekeyistofindoutwhatmakesasuccessfulmarriageandapplyittoallofourrelationships!Whymaytheoutlookofmarriagenotbeasgloomyasitappears
ContinuingEducation1Peoplearoundtheworldagreethateducationisnotanendbutameanstoanend.Inotherwordswedonoteducatestudentsonlyfortheaimofeducatingthem.Ourpurposeistofitthemforlife.Lifeisvaried;soiseducation.2IdeasabouteducationaremorespecifiedintheUnitedStates.Educationtodayisnotjustahighschooldiplomaoracollegedegree.Manyadultsarenotinterestedingoingtocollege.Theyareinterestedinotherkindsoflearning.Forthemlearningdoesnotendwithadiploma.3Continuingeducationgivestheseadultstheopportunitytoincreasetheirknowledgeabouttheirownfieldortolearnaboutanewfield.Italsogivesthemachancetoimprovetheiroldskillsortolearnnewones.Scientistsmechanicssecretariesbarbersandcookscantakeclassestoimprovetheirworkskills.Iftheyknowmoreorlearnmoretheycangetabetterjoborearnmoremoney.4Continuingeducationclassesgivemoreadultsthechancetolearnnewskills.Thereisusuallyalargevarietyofclassestochoosefrom:typingforeigncookingphotographyautorepairfurniturerepairorswimming.Thereareonlysomeoftheclassesavailable.5Someadultstakeclassesforfunorbecausetheclasswillbeusefulforthem.Otheradultstakecontinuingeducationclassestoimprovetheirownlivesbecausetheywanttofeelbetteraboutthemselves.6Almostanycommunitycollegeorpublicschoolsystemhasacontinuingeducationprogram.Thereareclassesinschoolscommunitybuildingsorchurches.Mostclassesareintheeveningssoworkingpeoplecanattend.Theclassesareusuallysmallandtheyareinexpensive.AIdeasbouteducationintheU.S.BAdvantagesofcontinuingeducationCGoodopportunitytolearnnewskillsDMostclassesareintheeveningEWorkingpeoplehaveeasyaccessFEducationhelpscooksfindabetterjobParagraph6______
AntsasaBarometerofEcologicalChangeAtpicnicsantsarepests.Buttheyhavetheiruses.Inindustriessuchastrainingfarmingandforestrytheycanhelpgaugethehealthoftheenvironmentbyjustcrawlingaroundandbeingantsy.Ithasbeenrecognizedfordecadesthatants--whicharehighlysensitivetoecologicalchangecanprovideanear-perfectbarometerofthestateofanecosystem.Onlycertainspeciesforinstancewillcontinuetothriveataforestsitethathasbeenclearedoftrees.46.Andstillotherswillmoveinandtakeupresidence.Bylookingatwhichspeciespopulateadeforestedareascientistscandeterminehowstressedthelandis.47.Antsareusedsimplybecausetheyaresocommonandcomprisesomanyspecies.Whereminesitesarebeingrestoredforexamplesomeantspecieswillrecognizethestrippedlandmorequicklythanothers.48.AustralianminingcompanyCapricornCoalManagementhasbeensuccessfullyusingantsurveysforyearstodeterminetherateofrecoveryoflandthatitisreplantingnearitsGermanCreekmineinQueensland.Antsurveysalsohavebeenusedwithmine-siterecoveryprojectsinAfricaandBrazilwherewarmclimatesencouragedenseanddiverseantpopulations.WefounditworkedextremelywelltheresaysJonathanMajoraprofessorofenvironmentalbiology.YetthesurveysareperfectlysuitedtoclimatesthroughoutAsiahesaysbecauseantsaresocommonthroughouttheregion.AsMajorputsit:That’sthegreatthingaboutants.Antsurveysaresohighly-regardedasecologicalindicatorsthatgovernmentsworldwideaccepttheirresultswhenassessingtheenvironmentalimpactofminingandtreeharvesting.49WhynotBecausemanycompaniescan’taffordtheexpenseorthelaboratorytimeneededtosiftresultsforacomprehensivesurvey.Thecoststemsalsofromthescarcityofantspecialists.50.A.Thisallowedscientiststogaugethepaceandprogressoftheecologicalrecovery.B.Yetinotherbusinessessuchasfarmingandpropertydevelopmentantsurveysaren’tusedwidely.C.Employingthosepeopleareexpensive.D.Theydothisbysortingtheantscountingtheirnumbersandcomparingtheresultswiththoseofearliersurveys.E.Theevolutionofantspeciesmayhaveastrongimpactonourecosystem.F.Otherswilldieoutforlackoffoo
TheroleofwomeninBritainhaschangedalotinthiscentury51inthelasttwentyyears.Themainchangehasbeen52givingwomengreaterequalitywithmen.Uptothebeginningofthiscenturywomenseemtohavehad53rights.Theycouldnotvoteandwerekeptathome.54asfarasweknowmostwomenwerehappywiththissituation.TodaywomeninBritaincertainly55morerightsthantheyusedto.Theywere56thevotein1919.In1970alawwaspassedtogivethemanequal57ofwealthinthecaseofdivorce58theEqualPayActgavethemtherightofequalpaywithmenforworkofequalvalueinthesameyear.Yet59thesechangestherearestillgreatdifferenceinstatusbetweenmenandwomen.Manyemployersseemto60theEqualPayActandtheaverageworkingwomenis61toearnonlyabouthalfthatamanearnsforthesamejob.62asurveyatpresentonlyone-thirdofthecountry’sworkersare63women.Thissmallpercentageispartly64ashortageofnurseries.Iftherewere65nurseriestwiceasmanywomenmightwellgoouttowork.
AadultsshouldgoonlearningaftergraduatingfromschoolBtoenlargetheirknowledgeandlearnnewskillsCbycommunitycollegesandpublicschoolsDonlyforworkingpeopleEContinuingEducationClassesFTheImportanceofaCollegeDegreeThebesttitleforthepassagewouldbe______.
AntsasaBarometerofEcologicalChangeAtpicnicsantsarepests.Buttheyhavetheiruses.Inindustriessuchastrainingfarmingandforestrytheycanhelpgaugethehealthoftheenvironmentbyjustcrawlingaroundandbeingantsy.Ithasbeenrecognizedfordecadesthatants--whicharehighlysensitivetoecologicalchangecanprovideanear-perfectbarometerofthestateofanecosystem.Onlycertainspeciesforinstancewillcontinuetothriveataforestsitethathasbeenclearedoftrees.46.Andstillotherswillmoveinandtakeupresidence.Bylookingatwhichspeciespopulateadeforestedareascientistscandeterminehowstressedthelandis.47.Antsareusedsimplybecausetheyaresocommonandcomprisesomanyspecies.Whereminesitesarebeingrestoredforexamplesomeantspecieswillrecognizethestrippedlandmorequicklythanothers.48.AustralianminingcompanyCapricornCoalManagementhasbeensuccessfullyusingantsurveysforyearstodeterminetherateofrecoveryoflandthatitisreplantingnearitsGermanCreekmineinQueensland.Antsurveysalsohavebeenusedwithmine-siterecoveryprojectsinAfricaandBrazilwherewarmclimatesencouragedenseanddiverseantpopulations.WefounditworkedextremelywelltheresaysJonathanMajoraprofessorofenvironmentalbiology.YetthesurveysareperfectlysuitedtoclimatesthroughoutAsiahesaysbecauseantsaresocommonthroughouttheregion.AsMajorputsit:That’sthegreatthingaboutants.Antsurveysaresohighly-regardedasecologicalindicatorsthatgovernmentsworldwideaccepttheirresultswhenassessingtheenvironmentalimpactofminingandtreeharvesting.49WhynotBecausemanycompaniescan’taffordtheexpenseorthelaboratorytimeneededtosiftresultsforacomprehensivesurvey.Thecoststemsalsofromthescarcityofantspecialists.50.A.Thisallowedscientiststogaugethepaceandprogressoftheecologicalrecovery.B.Yetinotherbusinessessuchasfarmingandpropertydevelopmentantsurveysaren’tusedwidely.C.Employingthosepeopleareexpensive.D.Theydothisbysortingtheantscountingtheirnumbersandcomparingtheresultswiththoseofearliersurveys.E.Theevolutionofantspeciesmayhaveastrongimpactonourecosystem.F.Otherswilldieoutforlackoffoo
热门题库
更多
中石油职称英语
理工类
卫生类
综合类
国际货运代理师
报关水平测试
报检员
物流员(四级)
助理物流师(三级)
物流师(二级)
高级物流师(一级)
物流案例分析
单证员基础理论与知识
单证员缮制与操作
国际货运代理理论与实务
外贸综合业务
湘公网安备 43130202000226号