Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify moods and actions, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual’s behavioral capacities. Later in life the changing outputs of some endocrine glands and the body’s changing sensitivity to some hormones are essential aspects of the phenomena of aging.
Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secret chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues. Bayliss and starling demonstrated that chemical integration could occur without participation of the nervous system.
The term “hormone” was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning “to excite or set in motion. The term “endocrine” was introduced shortly thereafter “Endocrine” is used to refer to glands that secret products into the bloodstream. The term “endocrine” contrasts with “exocrine”, which is applied to glands that secret their products though ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secrets pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless.
1.What is the author’s main purpose in the passage?
A.To explain the specific functions of various hormones.
B.To provide general information about hormones.
C.To explain how the term “hormone” evolved.
D.To report on experiments in endocrinology.
2.The passage supports which of the following conclusions?
A.The human body requires large amounts of most hormones.
B.Synthetic hormones can replace a person’s natural supply of hormones if necessary.
C.The quantity of hormones produced and their effects on the body are related to a person’s age.
D.The short child of tall parents very likely had a hormone deficiency early in life.
3.It can be inferred from the passage that before the Bayliss and Starling experiments, most people believed that chemical integration occurred only___.
A.during sleep.
B.in the endocrine glands.
C.under control of the nervous system.
D.during strenuous exercise.
4.The word “liberate” could best be replaced by which of the following?
A.Emancipate B.Discharge C.Surrender D.Save
5.According to the passage another term for exocrine glands is___.
A.duct glands
B.endocrine glands
C.ductless glands
D.intestinal glands.
BDCBA
暫無解析
Advertisementsareaimedatpeoplesufferingfrommildcomplaintsbecause________.
Theareagets________________(年降雨量不足五厘米).
PartIVTranslation
Directions:TranslatethefollowingsentencesintoEnglish.
每個人手里都有一張申請表，但卻都不知道送往哪個辦公室。
Passage3
Questions11to15arebasedonthefollowingpassage:
UnliketheirAmericanorEuropeancounterparts,carsalesmeninJapanworkhardtogetabuyer.Insteadoflyinglazilyaroundshowroomswaitingforcustomerstodropby,manyJapanesecarsalesmenstillgoouttogetthem.Theywalkwearilyalongthestreetscarsdoor-to-door.Newcustomersarehuntedwithfruitandcakesontheirbirthdays.Butlifeisgettingtough,andnotjustbecausenew-carsalesarefalling.
WithmoreJapanesewomen(whooftencontrolthehouseholdbudget)goingouttowork,thesalesmenincreasinglyfindnobodyathomewhentheycall.Thatmeansanothervisitintheeveningortheweekend.Thentheyfaceanextraproblem:morepeople,especiallytheyoung,prefertochooseanewcarfromashowroomwheretheycancomparedifferentmodels.
Evenaslateasthemid-1980ssome90%ofnewcarsweresolddoor-to-door.Insomeruralareasmostnewcarsarestillsoldthisway.Butinthebigcitiesmorethanhalfthenewcarsarenowsoldfromshowrooms.
AlthoughinvestinginshowroomsisexpensivebecauseofthehighcostofJapaneseland,dealershavelittlechoice.AlaborshortageandhigheramongJapan’sworkforcearemakingitdifficulttohiredoor-to-doorsalesmen.MostofaJapanesecarsalesman’sworkingdayisspentdoingfavorsforcustomers,likearranginginsuranceorpickingupvehiclesforservicing,ratherthanactuallyselling.
Japan’sdoorstepcarsalesmenarenotabouttovanish.Thepersonalservicetheyprovideissodeep-rootedinJapanthattheyarelikelytooperatealongsidetheglitteringnewshowrooms.Thetwosystemsevencomplementeachother.Whatincreasinglyhappensisthattheshowroomattractstheinterestofapotentialbuyer,givingthefootsoresalesmenafirmleadtofollowupwithahomevisit.
11.Japanesecarsalesusuallydonotwaitatshowroomsforcustomerstodropby;instead,.
A.theysellcarsdoor-to-door
B.theybuypresentsfortheircustomers
C.theyenjoythemselvesinrecreationcenters
D.theygoouttodomarketresearches
12.Impliedbutstated:thecompetitionincarmarketis.
A.lightB.moderateC.fierceD.unfair
13.Youngpeopleliketobuyanewcar.
A.athomeB.fromashowroom
C.madeintheU.S.A.D.madeinJapan
14.ThesquadronofJapanesecarsalesmenisreducingbecauseof.
A.alaborshortage
B.higherexpectationsamongJapan’sworkforce
C.highcostland
D.bothAandB
15.Japanesecarsalesmentotheircustomersmanyfavorssuchas.
A.showingthemaroundinanexhibition
B.arranginginsurance
C.payingthemavisitonweekends
D.sellingolecarsforthem
PartIIVocabularyandStructure
Directions:Inthisparttherearefortyincompletesentences.Eachsentenceisfollowedbyfourchoices.ChoosetheonethatbestcompletesthesentenceandthenmarkyouranswerontheAnswerSheet.
21.Agreatmanycancerscanbecuredbutonlyifbeforetheyhavebeguntospreadorcolonizeinotherpartsofthebody.
A.properlytreat
B.properlytreating
C.beingproperlytreated
D.properlytreated
22.sheisalikeablegirl,sheisverydifficulttoworkwith.
A.SinceB.HoweverC.AsfarasD.While
23.Allthetouristsgavetherobbertheirmoney.
A.frightenedB.frighteningC.frightenD.frightful
24.herage,shereallydidagoodjobinsuchashorttime.
A.GivingB.GivesC.GiveD.Given
25.Thesoldierwaswithneglectinghisduty.
A.chargedB.conductedC.chargedD.committed
26.Thereasonwhythecarstoppedwas.
A.becausetheroadwasnotgoodB.thattheroadwasnotgood
C.duetothebadroadD.becauseofthebadroad
27.You’dbetterhurry,youmightbelateforclass.
A.orB.andC.unlessD.but
28.,heperformedthetaskwithsuccess.
A.ItwasexpectedB.Whichwasexpected
C.AswasexpectedD.Thatwasexpected
29.ThedoctorfeltJohn’sarmtoifthebonewasbroken.
A.workoutB.findoutC.lookatD.seeout
30.Hejustmysuggestionatthemeetingyesterday.
A.putawayB.shutdownC.showedoffD.brushedaside
31.Thequestionatthenextmeetingremainasecret.
A.discussedB.todiscussC.tobediscussedD.beingdiscussed
32.Hislazinesshisfailureinthefinalexam.
A.gaveupB.contributedC.resultedinD.distributed
33.Theteacher’stomystatementaboutthispoetledmetoreadwidelyaboutpoems.
A.changeB.chargeC.challengeD.chance
34.Onmostofthenights,Janereadinglettersfromherboyfriend.
A.stayedoffB.stayedonC.stayedoutD.stayedup
35.Thefirst-yearstudentswerelearningformthearmyinMiyun,asuburbofBeijingnearIlived.
A.whatB.whereC.thatD.which
36.Lyndaandhundredsofyoungpeoplelikehimthepostoftypist.
A.approachedB.appliedforC.appealedtoD.approvedof
37.Anybodyisentitledtosuchbenefitofageorsex.
A.regardlessB.whetherC.inspiteD.incase
38.Inthisbuildingeachapartmentcouldafamilyofsix.
A.houseB.coverC.makeD.include
39.Itriedtogetoutofthebusiness,Ifoundimpossible.
A.whoB.whichC.thatD.what
40.Whenheexplaineditagainandagain,thestudent’spatience.
A.ranoverB.ranonC.ranoutD.ranoff
41.WhenherneighborGrandmaWangbecameill,thegirloften.
A.fittedinB.workedoutC.heldbackD.helpedout
42.Ifyoureallywanttoapplyforthedangerousjob,Iwon’t,thoughtIthinkit’sacrazyidea.
A.stoodinyourwayB.standontheway
C.standinyourwayD.standbytheway
43.Hewastryingtoread;,thephonekeptringing.
A.meanwhileB.thenC.laterD.afterwards
44.Iamoutofthosepeoplewholikeastrenuous(費力的)holiday;Ibelievein.
A.tookiteasyB.takeniteasy
C.takingiteasyD.takingiteasily
45.Thepolicematchedthefingerprintsandfoundtheywere.
A.equivalentB.identicalC.similarD.equal
46.Formally,intheUnitedStates,manynursesworkedasprivatedutynursesinhospitals.
A.otherthanB.morethanC.lessthanD.ratherthan
47.Ifyoudon’tmind.Idomyhomeworkthanplaycardswithyou.
A.hadbetterB.preferC.wouldratherD.wouldlike
48.Theirideawastogetustothestrikeatonce.
A.callatB.calloffC.callinD.callfor
49.MycarsoIhadtocomebybus.
A.felldownB.brokedownC.felloverD.turnedaway
50.Icouldtellhewassurprisedfromtheonhisface.
A.appearanceB.sightC.expressionD.explanation
51.Whichis,NorthAmericaorSouthAmerica?
A.biggestB.thebiggestC.morebiggestD.bigger
52.Youshouldobservecarefullyhowtheaudiencehisspeech.
A.reachtoB.refertoC.reacttoD.relateto
53.Thesefarmersgotagoodharvestlastyear,sotheyabigsumofmoneyfornewfarmmachines.
A.setasideB.setaboutC.setupD.setback
54.Oneofmysayingsis“wherethereisawill,thereisaway.”
A.likelyB.favorableC.alikeD.favorite
55.Allisacontinuoussupplyoffueloil.
A.whatisneededB.thatisneeded
C.thethingisneededD.fortheirneeds
56.Thehighincometaxisharmfulitmaydiscouragepeoplefromtryingtoearnmore.
A.inthatB.thatC.inwhichD.which
57.Anewtechniqueout,theyieldincreasesby20%.
A.havingworkingB.havingbeenworked
C.atalossD.forgood
58.Thebirdflewintotheairandwassoon.
A.outofsightB.inahurryC.atalossD.forgood
59.ItisdecidedthatheforabustomeettheguestsfromBeijing.
A.callB.callsC.arrangeD.arranges
60.Iknowit’snotimportantbutIcan’thelpaboutit.
A.tothinkB.thinkingC.andthinkD.beingthought
