当前位置:考试网  > 试卷库  > 外语类  > 大学英语  > 大学英语六级  > Withoutregularsuppliesofsomehormonesourcapacitytobehavewouldbeseriouslyimpaired;withoutotherswewouldsoondie.Tinyamountsofsomehormonescanmodifymoodsandactions,ourinclinationtoeatordrink,ouraggressivenessorsubmissiveness,andourreproductiveandparentalbehavior.Andhormonesdomorethaninfluenceadultbehavior;earlyinlifetheyhelptodeterminethedevelopmentofbodilyformandmayevendetermineanindividual’sbehavioralcapacities.Laterinlifethechangingoutputsofsomeendocrineglandsandthebody’schangingsensitivitytosomehormonesareessentialaspectsofthephenomenaofaging. Communicationwithinthebodyandtheconsequentintegrationofbehaviorwereconsideredtheexclusiveprovinceofthenervoussystemuptothebeginningofthepresentcentury.TheemergenceofendocrinologyasaseparatedisciplinecanprobablybetracedtotheexperimentsofBaylissandStarlingonthehormonesecretion.Thissubstanceissecretedfromcellsintheintestinalwallswhenfoodentersthestomach;ittravelsthroughthebloodstreamandstimulatesthepancreastoliberatepancreaticjuice,whichaidsindigestion.Byshowingthatspecialcellssecretchemicalagentsthatareconveyedbythebloodstreamandregulatedistanttargetorgansortissues.Baylissandstarlingdemonstratedthatchemicalintegrationcouldoccurwithoutparticipationofthenervoussystem. Theterm“hormone”wasfirstusedwithreferencetosecretion.StarlingderivedthetermfromtheGreekhormone,meaning“toexciteorsetinmotion.Theterm“endocrine”wasintroducedshortlythereafter“Endocrine”isusedtorefertoglandsthatsecretproductsintothebloodstream.Theterm“endocrine”contrastswith“exocrine”,whichisappliedtoglandsthatsecrettheirproductsthoughductstothesiteofaction.Examplesofexocrineglandsarethetearglands,thesweatglands,andthepancreas,whichsecretspancreaticjuicethroughaductintotheintestine.Exocrineglandsarealsocalledductglands,whileendocrineglandsarecalledductless. 1.Whatistheauthor’smainpurposeinthepassage? A.Toexplainthespecificfunctionsofvarioushormones. B.Toprovidegeneralinformationabouthormones. C.Toexplainhowtheterm“hormone”evolved. D.Toreportonexperimentsinendocrinology. 2.Thepassagesupportswhichofthefollowingconclusions? A.Thehumanbodyrequireslargeamountsofmosthormones. B.Synthetichormonescanreplaceaperson’snaturalsupplyofhormonesifnecessary. C.Thequantityofhormonesproducedandtheireffectsonthebodyarerelatedtoaperson’sage. D.Theshortchildoftallparentsverylikelyhadahormonedeficiencyearlyinlife. 3.ItcanbeinferredfromthepassagethatbeforetheBaylissandStarlingexperiments,mostpeoplebelievedthatchemicalintegrationoccurredonly___. A.duringsleep. B.intheendocrineglands. C.undercontrolofthenervoussystem. D.duringstrenuousexercise. 4.Theword“liberate”couldbestbereplacedbywhichofthefollowing? A.EmancipateB.DischargeC.SurrenderD.Save 5.Accordingtothepassageanothertermforexocrineglandsis___. A.ductglands B.endocrineglands C.ductlessglands D.intestinalglands.
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Withoutregularsuppliesofsomehormonesourcapacitytobehavewouldbeseriouslyimpaired;withoutotherswewouldsoondie.Tinyamountsofsomehormonescanmodifymoodsandactions,ourinclinationtoeatordrink,ouraggressivenessorsubmissiveness,andourreproductiveandparentalbehavior.Andhormonesdomorethaninfluenceadultbehavior;earlyinlifetheyhelptodeterminethedevelopmentofbodilyformandmayevendetermineanindividual’sbehavioralcapacities.Laterinlifethechangingoutputsofsomeendocrineglandsandthebody’schangingsensitivitytosomehormonesareessentialaspectsofthephenomenaofaging.

Communicationwithinthebodyandtheconsequentintegrationofbehaviorwereconsideredtheexclusiveprovinceofthenervoussystemuptothebeginningofthepresentcentury.TheemergenceofendocrinologyasaseparatedisciplinecanprobablybetracedtotheexperimentsofBaylissandStarlingonthehormonesecretion.Thissubstanceissecretedfromcellsintheintestinalwallswhenfoodentersthestomach;ittravelsthroughthebloodstreamandstimulatesthepancreastoliberatepancreaticjuice,whichaidsindigestion.Byshowingthatspecialcellssecretchemicalagentsthatareconveyedbythebloodstreamandregulatedistanttargetorgansortissues.Baylissandstarlingdemonstratedthatchemicalintegrationcouldoccurwithoutparticipationofthenervoussystem.

Theterm“hormone”wasfirstusedwithreferencetosecretion.StarlingderivedthetermfromtheGreekhormone,meaning“toexciteorsetinmotion.Theterm“endocrine”wasintroducedshortlythereafter“Endocrine”isusedtorefertoglandsthatsecretproductsintothebloodstream.Theterm“endocrine”contrastswith“exocrine”,whichisappliedtoglandsthatsecrettheirproductsthoughductstothesiteofaction.Examplesofexocrineglandsarethetearglands,thesweatglands,andthepancreas,whichsecretspancreaticjuicethroughaductintotheintestine.Exocrineglandsarealsocalledductglands,whileendocrineglandsarecalledductless.

1.Whatistheauthor’smainpurposeinthepassage?

A.Toexplainthespecificfunctionsofvarioushormones.

B.Toprovidegeneralinformationabouthormones.

C.Toexplainhowtheterm“hormone”evolved.

D.Toreportonexperimentsinendocrinology.

2.Thepassagesupportswhichofthefollowingconclusions?

A.Thehumanbodyrequireslargeamountsofmosthormones.

B.Synthetichormonescanreplaceaperson’snaturalsupplyofhormonesifnecessary.

C.Thequantityofhormonesproducedandtheireffectsonthebodyarerelatedtoaperson’sage.

D.Theshortchildoftallparentsverylikelyhadahormonedeficiencyearlyinlife.

3.ItcanbeinferredfromthepassagethatbeforetheBaylissandStarlingexperiments,mostpeoplebelievedthatchemicalintegrationoccurredonly___.

A.duringsleep.

B.intheendocrineglands.

C.undercontrolofthenervoussystem.

D.duringstrenuousexercise.

4.Theword“liberate”couldbestbereplacedbywhichofthefollowing?

A.EmancipateB.DischargeC.SurrenderD.Save

5.Accordingtothepassageanothertermforexocrineglandsis___.

A.ductglands

B.endocrineglands

C.ductlessglands

D.intestinalglands.

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PartIVTranslation

Directions:TranslatethefollowingsentencesintoEnglish.

每个人手里都有一张申请表,但却都不知道送往哪个办公室。

Passage3

Questions11to15arebasedonthefollowingpassage:

TheideaofaspecialdaytohonormotherswasfirstputforwardinAmericain1907.twoyearslaterawoman,Mrs.JohnBruceDodd,inthestateofWashingtonproposedasimilardaytohonortheheadofthefamily—thefather.Hermotherdiedwhenshewasveryyoung,andherfatherbroughtherup.Shelovedherfatherverymuch.

InresponsetoMrs.Dodd’sideathatsameyear—1909,thestategovernorofWashingtonproclaimed(宣布)thethirdSundayinJuneFather’sDay.TheideawasofficiallyapprovedbyPresidentWoodrowWilsonin1916.in1924,PresidentCalvinCoolidgerecommendednationalobservanceoftheoccasion“toestablishmoreintimate(亲密)relationsbetweenfathersandtheirchildren,andtoimpressuponfathersthefullmeasureoftheirobligations.”TheredorwhiteroseisrecognizedastheofficialFather’sDayflower.

Father’sDaytooklongertoestablishonanationalscalethanMother’sDay,butastheideagrainedpopularity,tradesmenandmanufacturersbegantoseethecommercialpossibilities.Theyencouragedsonsanddaughterstohonortheirfatherswithsmallthank-youpresents,suchasatieorpairofsocks,aswellasbysendinggreetingcards.

DuringtheSecondWorldWar,AmericanservicemenstationedinBritainbegantorequestFather’sDaygreetingcardstosendhome.ThisgeneratedaresponsewithBritishcardpublishers.ThoughatfirsttheBritishpublicwasslowtoacceptthisratherartificialday,it’snowwellcelebratedinBritainonthethirdSundayinJuneinmuchthesamewayasinAmerica.

Father’sDayseemstobemuchlessimportantasoccasionthantheMother’sDay.Notmanyofthechildrenoffertheirfatherssomepresents.ButtheAmericanfathersstillthinktheyaremuchbetterfatedthanthefathersofmanyothercountries,whohavenotevenadayfortheirsakeinnameonly.

11.WhendidFather’sDayofficiallybegintohavenationalpopularity?

A.1907B.1909C.1916D.1924

12.WhofirststartedtheideaofholdingtheFather’sDay?

A.Mrs.JohnBruceDoddB.Mrs.JohnBruce’sMother

C.ThegovernmentofWashington.D.Somebusinessmen.

13.WhatflowerwillbepopularonFather’sDay?

A.LilyB.WaterLilyC.RedroseorwhiteroseD.Sunflower.

14.Whichstatementistrue,aaccordingtothispassage?

A.IttookevenlongerforMother’sDaytogainnationalpopularity.

B.ThebusinessmenhelpedtomakeFather’sDaypopular.

C.Father’sDayisonlycelebratedinAmerica.

D.Father’sDayisonlyatrickofthebusinessmentomakemoney.

15.WhatwasthefirstreactionoftheBritishpublishingtowardsFather’sDay?

A.Theythoughthighlyofitandaccepteditatonce.

B.Theyjustaccepteditatoncewithoutanyhesitation.

C.Theyjustthoughtitajoke.

D.Theythoughtitwastooartificialandtookalongtimetoaccept.

InwhatwaydoesLauraLenox-Conynghammakeherliving?

Ifthedrugproveseffectiveinhumantrials,itcouldenhancetheeffectivenessofexistingAIDSdrugsin________.

翻译:

Thecaptainrealizedthatthementriedtodeceivehimsohemadethemworkveryhardfortherestofthevoyage.(PassageOne)

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