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高二英语必修五课文原文高二英语必修五课文原文高二英语必修五课文原文xxx公司高二英语必修五课文原文文件编号:文件日期:修订次数:第1.0次更改批准审核制定方案设计,管理制度高二英语必修五课文原文以下是为大家整理的关于《高二英语必修五课文原文》的文章,供大家学习参考!
JOHHSHOWDEFEATS“KINGCHOLERA”
JohnSnowwasafamousdoctorinLondon-soexpert,indeed,thatheattendedQueenVictoriaasherpersonalphysician.Buthebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera.Thiswasthedeadlydiseaseofitsday.Neitheritscausenoritscurewasunderstood.Somanythousandsofterrifiedpeoplediedeverytimetherewasanoutbreak.JohnSnowwantedtofacethechallengeandsolvethisproblem.Heknewthatcholerawouldneverbecontrolleduntilitscausewasfound.
Hebecameinterestedintwotheoriesthatpossiblyexplainedhowcholerakilledpeople.Thefirstsuggestedthatcholeramultipliedintheair.Acloudofdangerousgasfloatedarounduntilitfounditsvictims.Thesecondsuggestedthatpeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.Fromthestomachthediseasequicklyattackedthebodyandsoontheaffectedpersondied.
JohnSnowsuspectedthatthesecondtheorywascorrectbutheneededevidence.SowhenanotheroutbreakhitLondonin1854,hewasreadytobeginhisenquiry.Asthediseasespreadquicklythroughpoorneighbourhoods,hebegantogatherinformation.Intwoparticularstreets,thecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.Hewasdeterminedtofindoutwhy.
Firsthemarkedonamaptheexactplaceswhereallthedeadpeoplehadlived.Thisgavehimavaluableclueaboutthecauseofthedisease.ManyofthedeathswerenearthewaterpumpinBroadStreet(especiallynumbers16,37,38and40).Healsonoticedthatsomehouses(suchas20and21BroadStreetand8and9CambridgeStreet)hadhadnodeaths.Hehadnotforeseenthis,sohemadefurtherinvestigations.Hediscoveredthatthesepeopleworkedinthepubat7CambridgeStreet.Theyhadbeengivenfreebeerandsohadnotdrunkthewaterfromthepump.Itseemedthatthewaterwastoblame.
Next,JohnSnowlookedintothesourceofthewaterforthesetwostreets.HefoundthatitcamefromtheriverpollutedbythedirtywaterfromLondon.HeimmediatelytoldtheastonishedpeopleinBroadStreettoremovethehandlefromthepumpsothatitcouldnotbeused.Soonafterwardsthediseasesloweddown.Hehadshownthatcholerawasspreadbygermsandnotinacloudofgas.
InanotherpartofLondon,hefoundsupportingevidencefromtwootherdeathsthatwerelinkedtotheBroadStreetoutbreak.Awoman,whohadmovedawayfromBroadStreet,likedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.Bothsheandherdaughterdiedofcholeraafterdrinkingthewater.WiththisextraevidenceJohnSnowwasabletoannouncewithcertaintythatpollutedwatercarriedthevirus.
Topreventthisfromhappeningagain,JohnSnowsuggestedthatthesourceofallthewatersuppliesbeexamined.Thewatercompanieswereinstructednottoexposepeopletopollutedwateranymore.Finally"KingCholera"wasdefeated.
COPERNICUS’REVOLUTIONRRYTHEORY
NicolausCopernicuswasfrightenedandhismindwasconfused.Althoughhehadtriedtoignorethem,allhismathematicalcalculationsledtothesameconclusion:thattheearthwasnotthecentreofthesolarsystem.Onlyifyouputthesuntheredidthemovementsoftheotherplanetsintheskymakesense.YethecouldnottellanyoneabouthistheoryasthepowerfulChristianChurchwouldhavepunishedhimforevensuggestingsuchanidea.TheybelievedGodhadmadetheworldandforthatreasontheearthwasspecialandmustbethecentreofthesolarsystem.
Theproblemarosebecauseastronomershadnoticedthatsomeplanetsintheskyseemedtostop,movebackwardandthengoforwardinaloop.Othersappearedbrighterattimesandlessbrightatothers.Thiswasverystrangeiftheearthwasthecentreofthesolarsystemandallplanetswentroundit.
Copernicushadthoughtlongandhardabouttheseproblemsandtriedtofindananswer.Hehadcollectedobservationsofthestarsandusedallhismathematicalknowledgetoexplainthem.Butonlyhisnewtheorycoulddothat.Sobetween1510and1514heworkedonit,graduallyimprovinghistheoryuntilhefeltitwascomplete.
In1514heshoweditprivatelytohisfriends.Thechangeshemadetotheoldtheorywererevolutionary.Heplacedafixedsunatthecentreofthesolarsystemwiththeplanetsgoingrounditandonlythemoonstillgoingroundtheearth.Healsosuggestedthattheearthwasspinningasitwentroundthesunandthisexplainedchangesinthemovementoftheplanetsandinthebrightnessofthestars.Hisfriendswereenthusiasticandencouragedhimtopublishhisideas,butCopernicuswascautious.HedidnotwanttobeattackedbytheChristianChurch,soheonlypublisheditashelaydyingin1543.
Certainlyhewasrighttobecareful.TheChristianChurchrejectedhistheory,sayingitwasagainstGod'sideaandpeoplewhosupporteditwouldbeattacked.YetCopernicus'theoryisnowthebasisonwhichallourideasoftheuniversearebuilt.HistheoryreplacedtheChristianideaofgravity,whichsaidthingsfelltoearthbecauseGodcreatedtheearthasthecentreoftheuniverse.Copernicusshowedthiswasobviouslywrong.NowpeoplecanseethatthereisadirectlinkbetweenhistheoryandtheworkofIsaacNewton,AlbertEinsteinandStephenHawking.
必修5Unit2
PUZZLESINGEOGRAPHY
Peoplemaywonderwhydifferentwordsareusedtodescribethesefourcountries:England,Wales,ScotlandandNorthernIreland.YoucanclarifythisquestionifyoustudyBritishhistory.
FirsttherewasEngland.Waleswaslinkedtoitinthethirteenthcentury.NowwhenpeoplerefertoEnglandyoufindWalesincludedaswell.NextEnglandandWaleswerejoinedtoScotlandintheseventeenthcenturyandthenamewaschangedto"GreatBritain".HappilythiswasaccomplishedwithoutconflictwhenKingJamesofScotlandbecameKingofEnglandandWalesaswell.FinallytheEnglishgovernmenttriedintheearlytwentiethcenturytoformtheUnitedKingdombygettingIrelandconnectedinthesamepeacefulway.However,thesouthernpartofIrelandwasunwillingandbrokeawaytoformitsowngovernment.SoonlyNorthernIrelandjoinedwithEngland,WalesandScotlandtobecometheUnitedKingdomandthiswasshowntotheworldinanewflagcalledtheUnionJack.
Totheircreditthefourcountriesdoworktogetherinsomeareas(eg,thecurrencyandinternationalrelations),buttheystillhaveverydifferentinstitutions.Forexample,NorthernIreland,EnglandandScotlandhavedifferenteducationalandlegalsystemsaswellasdifferentfootballteamsforcompetitionsliketheWorldCup!
Englandisthelargestofthefourcountries,andforconvenienceitisdividedroughlyintothreezones.ThezonenearestFranceiscalledtheSouthofEngland,themiddlezoneiscalledtheMidlandsandtheonenearesttoScotlandisknownastheNorth.Youfindmostofthepopulationsettledinthesouth,butmostoftheindustrialcitiesintheMidlandsa
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