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? ?阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。 {{B}}? ? ? ? ? ? ? ? ? ? ? ?...
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阅读下面的短文文章中有5处空白文章后面有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置
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{{*HTML*}}阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Geographyisthestudyofthe relationshipbetweenpeopleandtheland.Geographers地理学家compareand contrast{{U}}?51?{{/U}}placesontheearth.Buttheyalso{{U}}? 52?{{/U}}beyondtheindividualplacesandconsidertheearthasa{{U}} ?53?{{/U}}.ThewordgeographycomesfromtwoGreekwordsgethe Greekwordforearthandgraphein{{U}}?54?{{/U}}towrite.The Englishwordgeographymeanstodescribetheearth.{{U}}?55 ?{{/U}}geography?booksfocusonasmallarealikeatownorcity. Othersdealwithastatearegionanationoran{{U}}?56 ?{{/U}}continent.Manygeographybooksdealwiththewholeearth.Another{{U}} ?57?{{/U}}to?dividethestudyof{{U}}?58?{{/U}}is todistinguishbetweenphysicalgeography?andculturalgeography.The formerfocusesonthenaturalworld;the{{U}}?59?{{/U}}startswith humanbeingsandstudieshowhumanbeingsandtheirenvironmentact{{U}}? 60?{{/U}}eachother.Butwhengeographyisconsideredasasingle subject{{U}}?61?{{/U}}branchcanneglecttheother.? ?Ageographermightbedescribed{{U}}?62?{{/U}}onewhoobserves recordsandexplainsthe{{U}}?63?{{/U}}betweenplaces.Ifplaceswere aliketherewouldbelittleneedforgeographers.??Weknow however{{U}}?64?{{/U}}notwoplacesareexactlythesame.Geography thenisapointofviewaspecialwayof{{U}}?65?{{/U}}at places.
{{*HTML*}}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个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ?Evenaftercenturiesofscientificresearchnooneknowsforsure whyhumanbeingsplusafewotherprimatesincludingchimpanzeesapesand orangutanslaugh.2.??Evenifscientistsstilldonotknowwhy welaughtheyhavelearnedalotaboutit.Forexample:Thesoundoflaughter iscreatedwhenyouinhaledeeplyandthenreleasetheairwhileyourdiaphragm movesinaseriesofshortspasmodiccontractions.Thetypicallaughismadeup ofpulsesofsoundthatareabout1/15thofasecondlongand1/5thofasecond apart.3.??Oneofthemostinterestingthingsresearchershave learnedisthepowerfulhealingeffectoflaughter.Wellactuallythey’re re-learningitaftercenturiesofneglect:IntheMiddleAgesdoctorstreated theirpatientsbytellingthemjokesbutmodemmedicinediscountedthecurative propertiesoflaughing.Thatbegantochangein1979?wheneditorNorman CousinswroteAnatomyofanIllnessinwhichhecreditedwatchinghumorous videoswithhelpinghimreducepainandrecoverfromankylosingspondylitis 类风湿性脊椎炎alifethreateningdegenerativespinaldisease.Thebookinspired researcherstolookintowhetherlaughterreallycouldaidinhealingand recoveryfromillness.4.??In1995tworesearchersattheLoma LindaUniversitySchoolofMedicinehad10medicalstudentswatcha60-minute videotapeofGallagherastand-upcomedianfamousforsmashingwatermelonsand otherobjectswithasledgehammer.Theresearchersfoundthatafterwatchingthe videowherewasameasurabledecreaseinstresshormonesincludingepinephrine anddopamineinthestudents’bloodplusanincreaseinendorphins-thebody’s naturalpainkillers.Butthemostchangeswerefoundinthestudents’immune systems.Theseincluded?·Increasedlevelsofgammainterferona hormonethatswitchesontheimmunesystemhelpsfightvirusesandregulates cellgrowth.?·IncreasednumbersofhelperT-cellswhichhelpthe bodycoordinatetheimmunesystem’sresponsetoillness?·More Compliment3asubstancethathelpsantibodiesdestroyinfectedanddamaged cells?·AnincreaseinthenumberandactivityofnaturalkillerNK cellswhichthebodyuses?toattackforeigncellscancercellsand cellsinfectedbyviruses5.??Someofthelevelsevenbeganto changebeforethestudentswatchedthevideo-justfromtheexpectationthatthey wereabouttolaugh.Sayyou’regoingtoyourfavoriterestaurantDr.Berk explains.Youcanvisualizethefood;youcanalmosttasteit.Youarealready experiencingthephysiologyofenjoyingit.Yourimmunesystem[also]remembers. Byusinghumortocombatstressyoucanconditionyourselftostrengthenyour immunesystem.6.??Chimpanzeesapesandafewotherprimates laughbutnootheranimalsdoChimps’laughsoundslikerapidpantingbut unlikehumanstheyareunabletoregulateorcontroltheairastheybreathe out.Thislackofabilitytocontrolairflowissamethingthatdeprivesthemof speech.Chimpsandgorillasthathavelearnedsignlanguagehavebeenknownto signoneanotherforlaughsParagraph4.______
Griersonremains{{U}}cautious{{/U}}ofoffendingthepublicofmovingtooquickly.
{{*HTML*}}阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Geographyisthestudyofthe relationshipbetweenpeopleandtheland.Geographers地理学家compareand contrast{{U}}?51?{{/U}}placesontheearth.Buttheyalso{{U}}? 52?{{/U}}beyondtheindividualplacesandconsidertheearthasa{{U}} ?53?{{/U}}.ThewordgeographycomesfromtwoGreekwordsgethe Greekwordforearthandgraphein{{U}}?54?{{/U}}towrite.The Englishwordgeographymeanstodescribetheearth.{{U}}?55 ?{{/U}}geography?booksfocusonasmallarealikeatownorcity. Othersdealwithastatearegionanationoran{{U}}?56 ?{{/U}}continent.Manygeographybooksdealwiththewholeearth.Another{{U}} ?57?{{/U}}to?dividethestudyof{{U}}?58?{{/U}}is todistinguishbetweenphysicalgeography?andculturalgeography.The formerfocusesonthenaturalworld;the{{U}}?59?{{/U}}startswith humanbeingsandstudieshowhumanbeingsandtheirenvironmentact{{U}}? 60?{{/U}}eachother.Butwhengeographyisconsideredasasingle subject{{U}}?61?{{/U}}branchcanneglecttheother.? ?Ageographermightbedescribed{{U}}?62?{{/U}}onewhoobserves recordsandexplainsthe{{U}}?63?{{/U}}betweenplaces.Ifplaceswere aliketherewouldbelittleneedforgeographers.??Weknow however{{U}}?64?{{/U}}notwoplacesareexactlythesame.Geography thenisapointofviewaspecialwayof{{U}}?65?{{/U}}at places.
{{*HTML*}}阅读下面的短文文章中有5处空白文章后有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置以恢复文章原貌 ??Scientistsusedtoexploreonthesurfaceoftheocean.{{U}} ?46?{{/U}}.Theywanttoknowabouttheoceanwaterandtheplantand animallifedeepintheocean.??In1934thescientistWilliam Beebedived3000feetbelowthesurfaceinahollowsteelball.In1935 AugustePiccarddived10330feet.In1960hissonJeandivedtoadepthof 35800feet.??Alltheseearlydivesweredeep.{{U}}?47 ?{{/U}}.Theyhadtocomebackuptothesurfaceafterafewseconds. Scientistsneededtostaydownlongertostudylifebelowthesurface. Graduallytheysucceeded.CousteauaFrenchmanwasabletokeepmendowntoa depthof36feetforonemonthandtoadepthof90feetforaweek.? ?{{U}}?48?{{/U}}.Withthisnewequipmentmencanstaybelowthe surfacefordaysorevenweeks.In1962Cousteausetuparesearchstation35 feetbelowthesurface.Thenin1964hesetupanotherstationontheocean flooroftheRedSea.{{U}}?49?{{/U}}.??Manycountries arenowstudyingundersealiving.{{U}}?50?{{/U}}.TheUnitedStates hasalaboratory50feetdownontheoceanfloorofftheVirginIslands.In 1970fivemenlivedtherefortwoweeks.Thenateamoffivewomenscientists stayedinthelaboratory.Nextcameotherteamsofmen.Allwerethereto exploretheoceandepthsandtomakeplansfortheuseofits resources.???A.Thiswasthefirstunderseastationto operatewithouthelpfromthesurface.???B.Butthedivers couldnotstaydownforverylong.???C.Scientistshopeto findenoughmineralvegetableandanimalwealththere.?? ?D.Nowtheyareexploringbelowthesurfacetoo.?? ?E.TheSovietUnionhasanundersealaboratoryintheCrimean Sea.???F.Nowscientistsaredevelopingevenbetter equipment.
{{*HTML*}}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个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ?Evenaftercenturiesofscientificresearchnooneknowsforsure whyhumanbeingsplusafewotherprimatesincludingchimpanzeesapesand orangutanslaugh.2.??Evenifscientistsstilldonotknowwhy welaughtheyhavelearnedalotaboutit.Forexample:Thesoundoflaughter iscreatedwhenyouinhaledeeplyandthenreleasetheairwhileyourdiaphragm movesinaseriesofshortspasmodiccontractions.Thetypicallaughismadeup ofpulsesofsoundthatareabout1/15thofasecondlongand1/5thofasecond apart.3.??Oneofthemostinterestingthingsresearchershave learnedisthepowerfulhealingeffectoflaughter.Wellactuallythey’re re-learningitaftercenturiesofneglect:IntheMiddleAgesdoctorstreated theirpatientsbytellingthemjokesbutmodemmedicinediscountedthecurative propertiesoflaughing.Thatbegantochangein1979?wheneditorNorman CousinswroteAnatomyofanIllnessinwhichhecreditedwatchinghumorous videoswithhelpinghimreducepainandrecoverfromankylosingspondylitis 类风湿性脊椎炎alifethreateningdegenerativespinaldisease.Thebookinspired researcherstolookintowhetherlaughterreallycouldaidinhealingand recoveryfromillness.4.??In1995tworesearchersattheLoma LindaUniversitySchoolofMedicinehad10medicalstudentswatcha60-minute videotapeofGallagherastand-upcomedianfamousforsmashingwatermelonsand otherobjectswithasledgehammer.Theresearchersfoundthatafterwatchingthe videowherewasameasurabledecreaseinstresshormonesincludingepinephrine anddopamineinthestudents’bloodplusanincreaseinendorphins-thebody’s naturalpainkillers.Butthemostchangeswerefoundinthestudents’immune systems.Theseincluded?·Increasedlevelsofgammainterferona hormonethatswitchesontheimmunesystemhelpsfightvirusesandregulates cellgrowth.?·IncreasednumbersofhelperT-cellswhichhelpthe bodycoordinatetheimmunesystem’sresponsetoillness?·More Compliment3asubstancethathelpsantibodiesdestroyinfectedanddamaged cells?·AnincreaseinthenumberandactivityofnaturalkillerNK cellswhichthebodyuses?toattackforeigncellscancercellsand cellsinfectedbyviruses5.??Someofthelevelsevenbeganto changebeforethestudentswatchedthevideo-justfromtheexpectationthatthey wereabouttolaugh.Sayyou’regoingtoyourfavoriterestaurantDr.Berk explains.Youcanvisualizethefood;youcanalmosttasteit.Youarealready experiencingthephysiologyofenjoyingit.Yourimmunesystem[also]remembers. Byusinghumortocombatstressyoucanconditionyourselftostrengthenyour immunesystem.6.??Chimpanzeesapesandafewotherprimates laughbutnootheranimalsdoChimps’laughsoundslikerapidpantingbut unlikehumanstheyareunabletoregulateorcontroltheairastheybreathe out.Thislackofabilitytocontrolairflowissamethingthatdeprivesthemof speech.Chimpsandgorillasthathavelearnedsignlanguagehavebeenknownto signoneanotherforlaughsParagraph6.______
{{*HTML*}}{{B}}第三篇{{/B}} ??Sinceabout1970newresearchhas helpedbrainscientistsunderstandstheseproblemsbetter.Scientistsnowknow therearemanydifferentkindsoflearningdisabilitiesandthattheyarecaused bymanydifferentthings.Thereisnolongeranyquestionthatalllearning disabilitiesresultfromdifferencesinthewaythebrainisorganized.Youcan’ tlookatachildandtellifheorshehasalearningdisability.Thereisno outwardsignofthedisorder.Sosomeresearchersbeganlookingatthebrain itselftolearnwhatmightbewrong.??Inonestudyresearchers examinedthebrainofalearningdisabledpersonwhohaddiedinanaccident. Theyfoundtwounusualthings.Oneinvolvedcellsintheleftsideofthebrain whichcontrollanguage.Thesecellsnormallyarewhite.Inthelearningdisabled personhowevertheseceilsweregray.Theresearchersalsofoundthatmanyof thenerveceilswerenotinalinethewaytheyshouldhavebeen.Thenerve cellsweremixedtogether.??Thestudywascarriedoutunderthe guidanceofNormanGeschwindanearlyexpertonlearningdisabilities.Doctor Geschwindproposedthatlearningdisabilitiesmainlyresultesfromproblemsin theleftsideofthebrain.Hebelievedthissideofthebrainfailedtodevelop normally.?Probablyhesaidnervecellstheredidn’tconnectasthey should.Sothebrainwaslikeanelectricaldeviceinwhichthewireswere crossed.??Otherresearchersdidn’texaminebraintissue.Instead theymeasuredthebrain’selectricalactivityandmadeamapoftheelectrical signals.??FrankDullyexperimentedwiththistechniqueat Children’sHospitalMedicalCenterinBoston.Dr.Duffyfoundlargedifferences inthebrainactivityofnormalchildrenandthosewithreadingproblems.The differencesappearedthroughoutthebrain.Dr.Dullysaidhisresearchis evidencethatreadingdisabilitiesinvolvedamagetoawideareaofthebrain notjusttheleftside.Scientistsfoundthatthebraincellsofalearningdisabledpersondifferfromthoseofanormalpersonin______.
{{*HTML*}}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个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ?Evenaftercenturiesofscientificresearchnooneknowsforsure whyhumanbeingsplusafewotherprimatesincludingchimpanzeesapesand orangutanslaugh.2.??Evenifscientistsstilldonotknowwhy welaughtheyhavelearnedalotaboutit.Forexample:Thesoundoflaughter iscreatedwhenyouinhaledeeplyandthenreleasetheairwhileyourdiaphragm movesinaseriesofshortspasmodiccontractions.Thetypicallaughismadeup ofpulsesofsoundthatareabout1/15thofasecondlongand1/5thofasecond apart.3.??Oneofthemostinterestingthingsresearchershave learnedisthepowerfulhealingeffectoflaughter.Wellactuallythey’re re-learningitaftercenturiesofneglect:IntheMiddleAgesdoctorstreated theirpatientsbytellingthemjokesbutmodemmedicinediscountedthecurative propertiesoflaughing.Thatbegantochangein1979?wheneditorNorman CousinswroteAnatomyofanIllnessinwhichhecreditedwatchinghumorous videoswithhelpinghimreducepainandrecoverfromankylosingspondylitis 类风湿性脊椎炎alifethreateningdegenerativespinaldisease.Thebookinspired researcherstolookintowhetherlaughterreallycouldaidinhealingand recoveryfromillness.4.??In1995tworesearchersattheLoma LindaUniversitySchoolofMedicinehad10medicalstudentswatcha60-minute videotapeofGallagherastand-upcomedianfamousforsmashingwatermelonsand otherobjectswithasledgehammer.Theresearchersfoundthatafterwatchingthe videowherewasameasurabledecreaseinstresshormonesincludingepinephrine anddopamineinthestudents’bloodplusanincreaseinendorphins-thebody’s naturalpainkillers.Butthemostchangeswerefoundinthestudents’immune systems.Theseincluded?·Increasedlevelsofgammainterferona hormonethatswitchesontheimmunesystemhelpsfightvirusesandregulates cellgrowth.?·IncreasednumbersofhelperT-cellswhichhelpthe bodycoordinatetheimmunesystem’sresponsetoillness?·More Compliment3asubstancethathelpsantibodiesdestroyinfectedanddamaged cells?·AnincreaseinthenumberandactivityofnaturalkillerNK cellswhichthebodyuses?toattackforeigncellscancercellsand cellsinfectedbyviruses5.??Someofthelevelsevenbeganto changebeforethestudentswatchedthevideo-justfromtheexpectationthatthey wereabouttolaugh.Sayyou’regoingtoyourfavoriterestaurantDr.Berk explains.Youcanvisualizethefood;youcanalmosttasteit.Youarealready experiencingthephysiologyofenjoyingit.Yourimmunesystem[also]remembers. Byusinghumortocombatstressyoucanconditionyourselftostrengthenyour immunesystem.6.??Chimpanzeesapesandafewotherprimates laughbutnootheranimalsdoChimps’laughsoundslikerapidpantingbut unlikehumanstheyareunabletoregulateorcontroltheairastheybreathe out.Thislackofabilitytocontrolairflowissamethingthatdeprivesthemof speech.Chimpsandgorillasthathavelearnedsignlanguagehavebeenknownto signoneanotherforlaughsThereasonforthemedicalbenefitsoflaughterrelatesto______
{{*HTML*}}阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Geographyisthestudyofthe relationshipbetweenpeopleandtheland.Geographers地理学家compareand contrast{{U}}?51?{{/U}}placesontheearth.Buttheyalso{{U}}? 52?{{/U}}beyondtheindividualplacesandconsidertheearthasa{{U}} ?53?{{/U}}.ThewordgeographycomesfromtwoGreekwordsgethe Greekwordforearthandgraphein{{U}}?54?{{/U}}towrite.The Englishwordgeographymeanstodescribetheearth.{{U}}?55 ?{{/U}}geography?booksfocusonasmallarealikeatownorcity. Othersdealwithastatearegionanationoran{{U}}?56 ?{{/U}}continent.Manygeographybooksdealwiththewholeearth.Another{{U}} ?57?{{/U}}to?dividethestudyof{{U}}?58?{{/U}}is todistinguishbetweenphysicalgeography?andculturalgeography.The formerfocusesonthenaturalworld;the{{U}}?59?{{/U}}startswith humanbeingsandstudieshowhumanbeingsandtheirenvironmentact{{U}}? 60?{{/U}}eachother.Butwhengeographyisconsideredasasingle subject{{U}}?61?{{/U}}branchcanneglecttheother.? ?Ageographermightbedescribed{{U}}?62?{{/U}}onewhoobserves recordsandexplainsthe{{U}}?63?{{/U}}betweenplaces.Ifplaceswere aliketherewouldbelittleneedforgeographers.??Weknow however{{U}}?64?{{/U}}notwoplacesareexactlythesame.Geography thenisapointofviewaspecialwayof{{U}}?65?{{/U}}at places.
{{*HTML*}}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个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 ?Evenaftercenturiesofscientificresearchnooneknowsforsure whyhumanbeingsplusafewotherprimatesincludingchimpanzeesapesand orangutanslaugh.2.??Evenifscientistsstilldonotknowwhy welaughtheyhavelearnedalotaboutit.Forexample:Thesoundoflaughter iscreatedwhenyouinhaledeeplyandthenreleasetheairwhileyourdiaphragm movesinaseriesofshortspasmodiccontractions.Thetypicallaughismadeup ofpulsesofsoundthatareabout1/15thofasecondlongand1/5thofasecond apart.3.??Oneofthemostinterestingthingsresearchershave learnedisthepowerfulhealingeffectoflaughter.Wellactuallythey’re re-learningitaftercenturiesofneglect:IntheMiddleAgesdoctorstreated theirpatientsbytellingthemjokesbutmodemmedicinediscountedthecurative propertiesoflaughing.Thatbegantochangein1979?wheneditorNorman CousinswroteAnatomyofanIllnessinwhichhecreditedwatchinghumorous videoswithhelpinghimreducepainandrecoverfromankylosingspondylitis 类风湿性脊椎炎alifethreateningdegenerativespinaldisease.Thebookinspired researcherstolookintowhetherlaughterreallycouldaidinhealingand recoveryfromillness.4.??In1995tworesearchersattheLoma LindaUniversitySchoolofMedicinehad10medicalstudentswatcha60-minute videotapeofGallagherastand-upcomedianfamousforsmashingwatermelonsand otherobjectswithasledgehammer.Theresearchersfoundthatafterwatchingthe videowherewasameasurabledecreaseinstresshormonesincludingepinephrine anddopamineinthestudents’bloodplusanincreaseinendorphins-thebody’s naturalpainkillers.Butthemostchangeswerefoundinthestudents’immune systems.Theseincluded?·Increasedlevelsofgammainterferona hormonethatswitchesontheimmunesystemhelpsfightvirusesandregulates cellgrowth.?·IncreasednumbersofhelperT-cellswhichhelpthe bodycoordinatetheimmunesystem’sresponsetoillness?·More Compliment3asubstancethathelpsantibodiesdestroyinfectedanddamaged cells?·AnincreaseinthenumberandactivityofnaturalkillerNK cellswhichthebodyuses?toattackforeigncellscancercellsand cellsinfectedbyviruses5.??Someofthelevelsevenbeganto changebeforethestudentswatchedthevideo-justfromtheexpectationthatthey wereabouttolaugh.Sayyou’regoingtoyourfavoriterestaurantDr.Berk explains.Youcanvisualizethefood;youcanalmosttasteit.Youarealready experiencingthephysiologyofenjoyingit.Yourimmunesystem[also]remembers. Byusinghumortocombatstressyoucanconditionyourselftostrengthenyour immunesystem.6.??Chimpanzeesapesandafewotherprimates laughbutnootheranimalsdoChimps’laughsoundslikerapidpantingbut unlikehumanstheyareunabletoregulateorcontroltheairastheybreathe out.Thislackofabilitytocontrolairflowissamethingthatdeprivesthemof speech.Chimpsandgorillasthathavelearnedsignlanguagehavebeenknownto signoneanotherforlaughsLaughteressentiallyinvolves______A.seemtoknowhowtocontrollaughter
{{*HTML*}}阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Geographyisthestudyofthe relationshipbetweenpeopleandtheland.Geographers地理学家compareand contrast{{U}}?51?{{/U}}placesontheearth.Buttheyalso{{U}}? 52?{{/U}}beyondtheindividualplacesandconsidertheearthasa{{U}} ?53?{{/U}}.ThewordgeographycomesfromtwoGreekwordsgethe Greekwordforearthandgraphein{{U}}?54?{{/U}}towrite.The Englishwordgeographymeanstodescribetheearth.{{U}}?55 ?{{/U}}geography?booksfocusonasmallarealikeatownorcity. Othersdealwithastatearegionanationoran{{U}}?56 ?{{/U}}continent.Manygeographybooksdealwiththewholeearth.Another{{U}} ?57?{{/U}}to?dividethestudyof{{U}}?58?{{/U}}is todistinguishbetweenphysicalgeography?andculturalgeography.The formerfocusesonthenaturalworld;the{{U}}?59?{{/U}}startswith humanbeingsandstudieshowhumanbeingsandtheirenvironmentact{{U}}? 60?{{/U}}eachother.Butwhengeographyisconsideredasasingle subject{{U}}?61?{{/U}}branchcanneglecttheother.? ?Ageographermightbedescribed{{U}}?62?{{/U}}onewhoobserves recordsandexplainsthe{{U}}?63?{{/U}}betweenplaces.Ifplaceswere aliketherewouldbelittleneedforgeographers.??Weknow however{{U}}?64?{{/U}}notwoplacesareexactlythesame.Geography thenisapointofviewaspecialwayof{{U}}?65?{{/U}}at places.
{{*HTML*}}{{B}}第三篇{{/B}} ??Sinceabout1970newresearchhas helpedbrainscientistsunderstandstheseproblemsbetter.Scientistsnowknow therearemanydifferentkindsoflearningdisabilitiesandthattheyarecaused bymanydifferentthings.Thereisnolongeranyquestionthatalllearning disabilitiesresultfromdifferencesinthewaythebrainisorganized.Youcan’ tlookatachildandtellifheorshehasalearningdisability.Thereisno outwardsignofthedisorder.Sosomeresearchersbeganlookingatthebrain itselftolearnwhatmightbewrong.??Inonestudyresearchers examinedthebrainofalearningdisabledpersonwhohaddiedinanaccident. Theyfoundtwounusualthings.Oneinvolvedcellsintheleftsideofthebrain whichcontrollanguage.Thesecellsnormallyarewhite.Inthelearningdisabled personhowevertheseceilsweregray.Theresearchersalsofoundthatmanyof thenerveceilswerenotinalinethewaytheyshouldhavebeen.Thenerve cellsweremixedtogether.??Thestudywascarriedoutunderthe guidanceofNormanGeschwindanearlyexpertonlearningdisabilities.Doctor Geschwindproposedthatlearningdisabilitiesmainlyresultesfromproblemsin theleftsideofthebrain.Hebelievedthissideofthebrainfailedtodevelop normally.?Probablyhesaidnervecellstheredidn’tconnectasthey should.Sothebrainwaslikeanelectricaldeviceinwhichthewireswere crossed.??Otherresearchersdidn’texaminebraintissue.Instead theymeasuredthebrain’selectricalactivityandmadeamapoftheelectrical signals.??FrankDullyexperimentedwiththistechniqueat Children’sHospitalMedicalCenterinBoston.Dr.Duffyfoundlargedifferences inthebrainactivityofnormalchildrenandthosewithreadingproblems.The differencesappearedthroughoutthebrain.Dr.Dullysaidhisresearchis evidencethatreadingdisabilitiesinvolvedamagetoawideareaofthebrain notjusttheleftside.Accordingtothepassagewecanconcludethatfurtherresearchesshouldbemade______
{{*HTML*}}阅读下面的短文文章中有5处空白文章后有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置以恢复文章原貌 ??Scientistsusedtoexploreonthesurfaceoftheocean.{{U}} ?46?{{/U}}.Theywanttoknowabouttheoceanwaterandtheplantand animallifedeepintheocean.??In1934thescientistWilliam Beebedived3000feetbelowthesurfaceinahollowsteelball.In1935 AugustePiccarddived10330feet.In1960hissonJeandivedtoadepthof 35800feet.??Alltheseearlydivesweredeep.{{U}}?47 ?{{/U}}.Theyhadtocomebackuptothesurfaceafterafewseconds. Scientistsneededtostaydownlongertostudylifebelowthesurface. Graduallytheysucceeded.CousteauaFrenchmanwasabletokeepmendowntoa depthof36feetforonemonthandtoadepthof90feetforaweek.? ?{{U}}?48?{{/U}}.Withthisnewequipmentmencanstaybelowthe surfacefordaysorevenweeks.In1962Cousteausetuparesearchstation35 feetbelowthesurface.Thenin1964hesetupanotherstationontheocean flooroftheRedSea.{{U}}?49?{{/U}}.??Manycountries arenowstudyingundersealiving.{{U}}?50?{{/U}}.TheUnitedStates hasalaboratory50feetdownontheoceanfloorofftheVirginIslands.In 1970fivemenlivedtherefortwoweeks.Thenateamoffivewomenscientists stayedinthelaboratory.Nextcameotherteamsofmen.Allwerethereto exploretheoceandepthsandtomakeplansfortheuseofits resources.???A.Thiswasthefirstunderseastationto operatewithouthelpfromthesurface.???B.Butthedivers couldnotstaydownforverylong.???C.Scientistshopeto findenoughmineralvegetableandanimalwealththere.?? ?D.Nowtheyareexploringbelowthesurfacetoo.?? ?E.TheSovietUnionhasanundersealaboratoryintheCrimean Sea.???F.Nowscientistsaredevelopingevenbetter equipment.
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{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} ??Inanaveragewinterhighway departmentsspreadsometenmilliontonsofsalttokeeproadssafe.The corrosiveeffectsarewellknownbutforyearsthey’rebeendismissedwiththe argumentthatataround$25atonsaltisfarcheaperthanany alternative.??Latelyeconomistshaveaddeduptheactualcosts. TheEnvironmentalProtectionAgencyestimatesthatsalt-inducedroaddamageand vehiclecorrosioncost$3billionayear.Thatdoesnotincludedamageto undergroundcableswhichaddshundredsofmillionstoutilitybills.Nordoes itreflectthecostofbrineleakingintoporouswaterpipesthreateningthe watersupply.Saltywaterleachesintoroadbedskillsevergreensandpoisons streams.??Thevariouscostsprobablyaddanother$2billionto thenationalsaltbill.Scientistsestimatethefulleconomicorlifecycle costforatonofsaltat$500or20timesthe$25purchaseprice.That beginstomaketheswitchtocalciummagnesiumacetateperhapsthemost promisingalternativelookpractical.CMAmadefromaceticacidand dolomitic含白石的limecosts$600atonandhasminimaladverseeffect.Some researchersbelievethecostcanbehalvedbymakingCMAfromwastecheesewhey orpulp-milleffluent.??WhileCMAandotheralternativesare beingresearchedmanycitiesandstatesarecuttingbackontheiruseofsalt. Keepingdispensingequipmentingoodrepairhelpsreducetheamount spread.AccordingtotheauthorwhencanCMAbeappliedtotheroad?
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{{*HTML*}}{{B}}第二篇{{/B}} ??Aftertheviolentearthquakethatshook LosAngelesin1994earthquakescientistshadgoodnewstoreport:Thedamage anddeathtollcouldhavebeenmuchworse.??Morethan60people diedinthisearthquake.Bycomparisonanearthquakeofsimilarintensitythat shookAmericain1988claimed25000victims.??Injuriesand deathswererelativelylessinLosAngelesbecausethequakeoccurredat4:31a. m.Onaholidaywhentrafficwaslightonthecity’shighways.Inaddition changesmadetotheconstructioncodesinLosAngelesduringthelast20years havestrengthenedthecity’sbuildingsandhighwaysmakingthemmoreresistant toquakes.??Despitethegoodnewscivilengineersaren’tresting ontheirsuccesses.Pinnedtotheirdrawingboardsareblueprintsforimproved quake-re-sistantbuildings.Thenewdesignsshouldofferevengreater securitytocitieswhereearthquakesoftentakeplace.??Inthe pastmakingstructuresquake-resistantmeantfirmyetflexiblematerialssuch assteelandwoodthatbendwithoutbreaking.Laterpeopletriedtolifta buildingoffitsfoundationandinsertrubberandsteelbetweenthebuilding anditsfoundationtoreducetheimpactofgroundvibrations.Themostrecent designsgivebuildingsbrainsaswellasconcreteandsteelsupports.Called smartbuildingsthestructuresrespondlikelivingorganismstoan’ earthquake’svibrations.Whenthegroundshakesandthebuildingtipsforward thecomputerwouldforcethebuildingtoshiftintheopposite direction.??Thenewsmartstructurescouldbeveryexpensiveto build.Howevertheywouldsavemanylivesandwouldbelesslikelytobe damagedduringearthquakes.Itcanbeinferredfromthepassagethatinminimizingthedamagecausedbyearthquakesattentionshouldbefocusedon______.
{{*HTML*}}阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C ??Hydroponicsthescienceofgrowing plantsinwaterorinertsubstancesrepresentsoneofthemostinnovative practicesinmodernagriculturaldevelopment.Notonlydoesitallowgreaterof theplantgrowthprocessitpermitstheproductionofcropsinhostile infertileenvironments.??Thefirstwidelypublicizedsoilless gardeningexperimentswereconductedduringthe1930s.W.F.Gerickevaried nutrientlevelsamongspecimenssuspendedinagravelsubstrate沙砾基质to demonstrateremarkablealterationsingrowth.Amongthefindingsthatamazedhis fellowhorticulturistswastheproductionoftomatoplantsover6meters high.??Theoriginalhydroponicsgardensmerelyconsistedof plantsfloatinginwater.Itwaslaterdiscoveredthattherootscouldsurvive inanumberofmediaaslongastheyweresuppliedwithsufficientmoisture nutrientsandoxygen.Avarietyofmaterialsareusedinrecentversions includinggravelsandpeatsawdustplasticsandsoon.Indeedoneofthe mostproductivemethodsinvolvessuspendingplantsinairwithaStyrofoam supportandsprayingthemoccasionallywithnutrientsolutiontokeepthem moist.??Manydifferentkindsofmaterialsaresuitablefor physicallycontainingplantsyetallofthesesystemsshareonetrait:the culturesolution.Thisnutrientbathispreparedinatankbydissolvingsalts whichprovidethenecessarychemicalsforplantmetabolism.Constantcaremust betakentoassurethatthesodiumchloride氯化纳levelsinthetankdonotreach excessivelevelsastheplantsdrawwaterandmineralsoutofthesolution.The acidityofthetankmustalsobemaintainedaround6.0to6.5dependingonthe specifictypeofplantsbeingharvested.??Althoughsoilless farmingisgenerallymoreexpensivethanutilizingfertilelandtherearemany advantagesthatmakeitanimportantalternativetotraditionalpractices. Herbicidesandpesticidesareunnecessarybecauseofthecontrolledenvironment. Theplantsalsoneedlessspacetogrowbecausetheirnutrientuptakeis significantlymoreefficient.Themostoutstandingbenefitthoughisthe abilitytoproducecropsinareaswithpoorsoilconditionsorinsufficient rainfall.Thesoillessfarmingisgenerallycheaperthantraditionalpractices.
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{{*HTML*}}阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C ??Hydroponicsthescienceofgrowing plantsinwaterorinertsubstancesrepresentsoneofthemostinnovative practicesinmodernagriculturaldevelopment.Notonlydoesitallowgreaterof theplantgrowthprocessitpermitstheproductionofcropsinhostile infertileenvironments.??Thefirstwidelypublicizedsoilless gardeningexperimentswereconductedduringthe1930s.W.F.Gerickevaried nutrientlevelsamongspecimenssuspendedinagravelsubstrate沙砾基质to demonstrateremarkablealterationsingrowth.Amongthefindingsthatamazedhis fellowhorticulturistswastheproductionoftomatoplantsover6meters high.??Theoriginalhydroponicsgardensmerelyconsistedof plantsfloatinginwater.Itwaslaterdiscoveredthattherootscouldsurvive inanumberofmediaaslongastheyweresuppliedwithsufficientmoisture nutrientsandoxygen.Avarietyofmaterialsareusedinrecentversions includinggravelsandpeatsawdustplasticsandsoon.Indeedoneofthe mostproductivemethodsinvolvessuspendingplantsinairwithaStyrofoam supportandsprayingthemoccasionallywithnutrientsolutiontokeepthem moist.??Manydifferentkindsofmaterialsaresuitablefor physicallycontainingplantsyetallofthesesystemsshareonetrait:the culturesolution.Thisnutrientbathispreparedinatankbydissolvingsalts whichprovidethenecessarychemicalsforplantmetabolism.Constantcaremust betakentoassurethatthesodiumchloride氯化纳levelsinthetankdonotreach excessivelevelsastheplantsdrawwaterandmineralsoutofthesolution.The acidityofthetankmustalsobemaintainedaround6.0to6.5dependingonthe specifictypeofplantsbeingharvested.??Althoughsoilless farmingisgenerallymoreexpensivethanutilizingfertilelandtherearemany advantagesthatmakeitanimportantalternativetotraditionalpractices. Herbicidesandpesticidesareunnecessarybecauseofthecontrolledenvironment. Theplantsalsoneedlessspacetogrowbecausetheirnutrientuptakeis significantlymoreefficient.Themostoutstandingbenefitthoughisthe abilitytoproducecropsinareaswithpoorsoilconditionsorinsufficient rainfall.Accordingtothepassagethehighercostwouldbeagoodreasonnottousehydroponics.
{{*HTML*}}{{B}}第三篇{{/B}} ??Sinceabout1970newresearchhas helpedbrainscientistsunderstandstheseproblemsbetter.Scientistsnowknow therearemanydifferentkindsoflearningdisabilitiesandthattheyarecaused bymanydifferentthings.Thereisnolongeranyquestionthatalllearning disabilitiesresultfromdifferencesinthewaythebrainisorganized.Youcan’ tlookatachildandtellifheorshehasalearningdisability.Thereisno outwardsignofthedisorder.Sosomeresearchersbeganlookingatthebrain itselftolearnwhatmightbewrong.??Inonestudyresearchers examinedthebrainofalearningdisabledpersonwhohaddiedinanaccident. Theyfoundtwounusualthings.Oneinvolvedcellsintheleftsideofthebrain whichcontrollanguage.Thesecellsnormallyarewhite.Inthelearningdisabled personhowevertheseceilsweregray.Theresearchersalsofoundthatmanyof thenerveceilswerenotinalinethewaytheyshouldhavebeen.Thenerve cellsweremixedtogether.??Thestudywascarriedoutunderthe guidanceofNormanGeschwindanearlyexpertonlearningdisabilities.Doctor Geschwindproposedthatlearningdisabilitiesmainlyresultesfromproblemsin theleftsideofthebrain.Hebelievedthissideofthebrainfailedtodevelop normally.?Probablyhesaidnervecellstheredidn’tconnectasthey should.Sothebrainwaslikeanelectricaldeviceinwhichthewireswere crossed.??Otherresearchersdidn’texaminebraintissue.Instead theymeasuredthebrain’selectricalactivityandmadeamapoftheelectrical signals.??FrankDullyexperimentedwiththistechniqueat Children’sHospitalMedicalCenterinBoston.Dr.Duffyfoundlargedifferences inthebrainactivityofnormalchildrenandthosewithreadingproblems.The differencesappearedthroughoutthebrain.Dr.Dullysaidhisresearchis evidencethatreadingdisabilitiesinvolvedamagetoawideareaofthebrain notjusttheleftside.AllofthefollowingstatementsaretrueEXCEPTthat______.
{{*HTML*}}阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C ??Hydroponicsthescienceofgrowing plantsinwaterorinertsubstancesrepresentsoneofthemostinnovative practicesinmodernagriculturaldevelopment.Notonlydoesitallowgreaterof theplantgrowthprocessitpermitstheproductionofcropsinhostile infertileenvironments.??Thefirstwidelypublicizedsoilless gardeningexperimentswereconductedduringthe1930s.W.F.Gerickevaried nutrientlevelsamongspecimenssuspendedinagravelsubstrate沙砾基质to demonstrateremarkablealterationsingrowth.Amongthefindingsthatamazedhis fellowhorticulturistswastheproductionoftomatoplantsover6meters high.??Theoriginalhydroponicsgardensmerelyconsistedof plantsfloatinginwater.Itwaslaterdiscoveredthattherootscouldsurvive inanumberofmediaaslongastheyweresuppliedwithsufficientmoisture nutrientsandoxygen.Avarietyofmaterialsareusedinrecentversions includinggravelsandpeatsawdustplasticsandsoon.Indeedoneofthe mostproductivemethodsinvolvessuspendingplantsinairwithaStyrofoam supportandsprayingthemoccasionallywithnutrientsolutiontokeepthem moist.??Manydifferentkindsofmaterialsaresuitablefor physicallycontainingplantsyetallofthesesystemsshareonetrait:the culturesolution.Thisnutrientbathispreparedinatankbydissolvingsalts whichprovidethenecessarychemicalsforplantmetabolism.Constantcaremust betakentoassurethatthesodiumchloride氯化纳levelsinthetankdonotreach excessivelevelsastheplantsdrawwaterandmineralsoutofthesolution.The acidityofthetankmustalsobemaintainedaround6.0to6.5dependingonthe specifictypeofplantsbeingharvested.??Althoughsoilless farmingisgenerallymoreexpensivethanutilizingfertilelandtherearemany advantagesthatmakeitanimportantalternativetotraditionalpractices. Herbicidesandpesticidesareunnecessarybecauseofthecontrolledenvironment. Theplantsalsoneedlessspacetogrowbecausetheirnutrientuptakeis significantlymoreefficient.Themostoutstandingbenefitthoughisthe abilitytoproducecropsinareaswithpoorsoilconditionsorinsufficient rainfall.Thepassagemainlydiscusseshowtocontrolplantgrowth.
{{*HTML*}}阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Geographyisthestudyofthe relationshipbetweenpeopleandtheland.Geographers地理学家compareand contrast{{U}}?51?{{/U}}placesontheearth.Buttheyalso{{U}}? 52?{{/U}}beyondtheindividualplacesandconsidertheearthasa{{U}} ?53?{{/U}}.ThewordgeographycomesfromtwoGreekwordsgethe Greekwordforearthandgraphein{{U}}?54?{{/U}}towrite.The Englishwordgeographymeanstodescribetheearth.{{U}}?55 ?{{/U}}geography?booksfocusonasmallarealikeatownorcity. Othersdealwithastatearegionanationoran{{U}}?56 ?{{/U}}continent.Manygeographybooksdealwiththewholeearth.Another{{U}} ?57?{{/U}}to?dividethestudyof{{U}}?58?{{/U}}is todistinguishbetweenphysicalgeography?andculturalgeography.The formerfocusesonthenaturalworld;the{{U}}?59?{{/U}}startswith humanbeingsandstudieshowhumanbeingsandtheirenvironmentact{{U}}? 60?{{/U}}eachother.Butwhengeographyisconsideredasasingle subject{{U}}?61?{{/U}}branchcanneglecttheother.? ?Ageographermightbedescribed{{U}}?62?{{/U}}onewhoobserves recordsandexplainsthe{{U}}?63?{{/U}}betweenplaces.Ifplaceswere aliketherewouldbelittleneedforgeographers.??Weknow however{{U}}?64?{{/U}}notwoplacesareexactlythesame.Geography thenisapointofviewaspecialwayof{{U}}?65?{{/U}}at places.
{{*HTML*}}下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} ??Inanaveragewinterhighway departmentsspreadsometenmilliontonsofsalttokeeproadssafe.The corrosiveeffectsarewellknownbutforyearsthey’rebeendismissedwiththe argumentthatataround$25atonsaltisfarcheaperthanany alternative.??Latelyeconomistshaveaddeduptheactualcosts. TheEnvironmentalProtectionAgencyestimatesthatsalt-inducedroaddamageand vehiclecorrosioncost$3billionayear.Thatdoesnotincludedamageto undergroundcableswhichaddshundredsofmillionstoutilitybills.Nordoes itreflectthecostofbrineleakingintoporouswaterpipesthreateningthe watersupply.Saltywaterleachesintoroadbedskillsevergreensandpoisons streams.??Thevariouscostsprobablyaddanother$2billionto thenationalsaltbill.Scientistsestimatethefulleconomicorlifecycle costforatonofsaltat$500or20timesthe$25purchaseprice.That beginstomaketheswitchtocalciummagnesiumacetateperhapsthemost promisingalternativelookpractical.CMAmadefromaceticacidand dolomitic含白石的limecosts$600atonandhasminimaladverseeffect.Some researchersbelievethecostcanbehalvedbymakingCMAfromwastecheesewhey orpulp-milleffluent.??WhileCMAandotheralternativesare beingresearchedmanycitiesandstatesarecuttingbackontheiruseofsalt. Keepingdispensingequipmentingoodrepairhelpsreducetheamount spread.WhyisCMAfavouredtosalt?Because_______.
{{*HTML*}}阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Geographyisthestudyofthe relationshipbetweenpeopleandtheland.Geographers地理学家compareand contrast{{U}}?51?{{/U}}placesontheearth.Buttheyalso{{U}}? 52?{{/U}}beyondtheindividualplacesandconsidertheearthasa{{U}} ?53?{{/U}}.ThewordgeographycomesfromtwoGreekwordsgethe Greekwordforearthandgraphein{{U}}?54?{{/U}}towrite.The Englishwordgeographymeanstodescribetheearth.{{U}}?55 ?{{/U}}geography?booksfocusonasmallarealikeatownorcity. Othersdealwithastatearegionanationoran{{U}}?56 ?{{/U}}continent.Manygeographybooksdealwiththewholeearth.Another{{U}} ?57?{{/U}}to?dividethestudyof{{U}}?58?{{/U}}is todistinguishbetweenphysicalgeography?andculturalgeography.The formerfocusesonthenaturalworld;the{{U}}?59?{{/U}}startswith humanbeingsandstudieshowhumanbeingsandtheirenvironmentact{{U}}? 60?{{/U}}eachother.Butwhengeographyisconsideredasasingle subject{{U}}?61?{{/U}}branchcanneglecttheother.? ?Ageographermightbedescribed{{U}}?62?{{/U}}onewhoobserves recordsandexplainsthe{{U}}?63?{{/U}}betweenplaces.Ifplaceswere aliketherewouldbelittleneedforgeographers.??Weknow however{{U}}?64?{{/U}}notwoplacesareexactlythesame.Geography thenisapointofviewaspecialwayof{{U}}?65?{{/U}}at places.
{{*HTML*}}阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Geographyisthestudyofthe relationshipbetweenpeopleandtheland.Geographers地理学家compareand contrast{{U}}?51?{{/U}}placesontheearth.Buttheyalso{{U}}? 52?{{/U}}beyondtheindividualplacesandconsidertheearthasa{{U}} ?53?{{/U}}.ThewordgeographycomesfromtwoGreekwordsgethe Greekwordforearthandgraphein{{U}}?54?{{/U}}towrite.The Englishwordgeographymeanstodescribetheearth.{{U}}?55 ?{{/U}}geography?booksfocusonasmallarealikeatownorcity. Othersdealwithastatearegionanationoran{{U}}?56 ?{{/U}}continent.Manygeographybooksdealwiththewholeearth.Another{{U}} ?57?{{/U}}to?dividethestudyof{{U}}?58?{{/U}}is todistinguishbetweenphysicalgeography?andculturalgeography.The formerfocusesonthenaturalworld;the{{U}}?59?{{/U}}startswith humanbeingsandstudieshowhumanbeingsandtheirenvironmentact{{U}}? 60?{{/U}}eachother.Butwhengeographyisconsideredasasingle subject{{U}}?61?{{/U}}branchcanneglecttheother.? ?Ageographermightbedescribed{{U}}?62?{{/U}}onewhoobserves recordsandexplainsthe{{U}}?63?{{/U}}betweenplaces.Ifplaceswere aliketherewouldbelittleneedforgeographers.??Weknow however{{U}}?64?{{/U}}notwoplacesareexactlythesame.Geography thenisapointofviewaspecialwayof{{U}}?65?{{/U}}at places.
{{*HTML*}}{{B}}第二篇{{/B}} ??Aftertheviolentearthquakethatshook LosAngelesin1994earthquakescientistshadgoodnewstoreport:Thedamage anddeathtollcouldhavebeenmuchworse.??Morethan60people diedinthisearthquake.Bycomparisonanearthquakeofsimilarintensitythat shookAmericain1988claimed25000victims.??Injuriesand deathswererelativelylessinLosAngelesbecausethequakeoccurredat4:31a. m.Onaholidaywhentrafficwaslightonthecity’shighways.Inaddition changesmadetotheconstructioncodesinLosAngelesduringthelast20years havestrengthenedthecity’sbuildingsandhighwaysmakingthemmoreresistant toquakes.??Despitethegoodnewscivilengineersaren’tresting ontheirsuccesses.Pinnedtotheirdrawingboardsareblueprintsforimproved quake-re-sistantbuildings.Thenewdesignsshouldofferevengreater securitytocitieswhereearthquakesoftentakeplace.??Inthe pastmakingstructuresquake-resistantmeantfirmyetflexiblematerialssuch assteelandwoodthatbendwithoutbreaking.Laterpeopletriedtolifta buildingoffitsfoundationandinsertrubberandsteelbetweenthebuilding anditsfoundationtoreducetheimpactofgroundvibrations.Themostrecent designsgivebuildingsbrainsaswellasconcreteandsteelsupports.Called smartbuildingsthestructuresrespondlikelivingorganismstoan’ earthquake’svibrations.Whenthegroundshakesandthebuildingtipsforward thecomputerwouldforcethebuildingtoshiftintheopposite direction.??Thenewsmartstructurescouldbeveryexpensiveto build.Howevertheywouldsavemanylivesandwouldbelesslikelytobe damagedduringearthquakes.Thefunctionofthecomputermentionedinthepassageisto______.
{{*HTML*}}阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文章中没有提及请选择C ??Hydroponicsthescienceofgrowing plantsinwaterorinertsubstancesrepresentsoneofthemostinnovative practicesinmodernagriculturaldevelopment.Notonlydoesitallowgreaterof theplantgrowthprocessitpermitstheproductionofcropsinhostile infertileenvironments.??Thefirstwidelypublicizedsoilless gardeningexperimentswereconductedduringthe1930s.W.F.Gerickevaried nutrientlevelsamongspecimenssuspendedinagravelsubstrate沙砾基质to demonstrateremarkablealterationsingrowth.Amongthefindingsthatamazedhis fellowhorticulturistswastheproductionoftomatoplantsover6meters high.??Theoriginalhydroponicsgardensmerelyconsistedof plantsfloatinginwater.Itwaslaterdiscoveredthattherootscouldsurvive inanumberofmediaaslongastheyweresuppliedwithsufficientmoisture nutrientsandoxygen.Avarietyofmaterialsareusedinrecentversions includinggravelsandpeatsawdustplasticsandsoon.Indeedoneofthe mostproductivemethodsinvolvessuspendingplantsinairwithaStyrofoam supportandsprayingthemoccasionallywithnutrientsolutiontokeepthem moist.??Manydifferentkindsofmaterialsaresuitablefor physicallycontainingplantsyetallofthesesystemsshareonetrait:the culturesolution.Thisnutrientbathispreparedinatankbydissolvingsalts whichprovidethenecessarychemicalsforplantmetabolism.Constantcaremust betakentoassurethatthesodiumchloride氯化纳levelsinthetankdonotreach excessivelevelsastheplantsdrawwaterandmineralsoutofthesolution.The acidityofthetankmustalsobemaintainedaround6.0to6.5dependingonthe specifictypeofplantsbeingharvested.??Althoughsoilless farmingisgenerallymoreexpensivethanutilizingfertilelandtherearemany advantagesthatmakeitanimportantalternativetotraditionalpractices. Herbicidesandpesticidesareunnecessarybecauseofthecontrolledenvironment. Theplantsalsoneedlessspacetogrowbecausetheirnutrientuptakeis significantlymoreefficient.Themostoutstandingbenefitthoughisthe abilitytoproducecropsinareaswithpoorsoilconditionsorinsufficient rainfall.Earthismentionedbytheauthorasanecessityforhydroponics.
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