高中人教版英语必修五课本答案文档格式.doc
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Unit1
WARMINGUP
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Answers:
1Archimedes,AncientGreek(287-212BC)Hewasamathematician.Hefoundthatifyouputanobjectintowaterthewaterpushestheobjectup.Itrisesandpartlyfloats.Theforceofthewaterpushingitupisthesameastheweightoftheobject.
2CharlesDarwin,British(1808-1882)TheOriginofSpecieswaspublishedin1859.Itexplainedhowplantsandanimalshadchangedovertimetofitinwithachangingenvironment.Atthetimeitwaspublisheditwasverycontroversial.ManypeoplebelievedtheBiblewhenitsaidthatGodmadethefirsttwopeople(AdamandEve)andthatallotherpeoplecamefromthesetwo.Darwin’sbookshowedthatpeoplehaddevelopedfromapesinstead.Sothiscausedalotofargumentbetweenreligiousandscientificpeople.HoweverDarwin’sideabecameveryinfluentialandisstillacceptedtoday.
3ThomasNewcomen,British(1663-1729)HeimprovedthefirststeampumpbuiltbyThomasSaveryin1698andturneditintoasteamenginefortakingwateroutofminesin1712.JamesWattimproveditstillfurtherinthe1770sturningitintothefirstmodernsteamengineusedontherailways.
4GregorMendel,Czech(1822-1884)Hegrewpeaplantsanddevelopedideasonheredityandinheritedcharacteristics.Heconcentratedoncross-fertilisingpeaplantsandanalyzingtheresults.Between1856-1863hegrew28,000peaplants.Heexaminedsevenkindsofseedandplantcharacteristicsanddevelopedsomelawsofinheritance.Thefirstisthatinheritancefactorsdonotcombinebutarepassedtothenextgenerationintact.Second,hefoundthateachpartnergiveshalftheinheritedfactorstotheyoung.Third,someofthesefactorsshowupintheoffspring(andsoaredominant).Theotherfactorsaremaskedbythedominantones(andsoarerecessive).
5MarieCurie,PolishandFrench(1867-1934)ShewasborninPolandandcametostudyinFrancein1891andshelivedtherefortherestofherlife.In1898shediscoveredradium.ShereceivedtwoNobelprizes,one(withPierreCurie)forphysics(1903)andoneforchemistry(1911).Sheistheonlypersontohavebeensohonoured.OnthedeathofherhusbandshetookoverhisjobattheSorbonneinParis.Herworkonradioactivityandthediscoveryofradiummeantthatshebegananewscientificareaofresearch.ShewasthefirstwomantoreceiveaNobelPrizeandthefirstwomantoteachattheSorbonne.
6ThomasEdison,American(1847-1931)Hewasalreadyaninventorofotherelectricaldevices(phonograph,electriclightbulb)whenin1882hedesignedasystemforprovidingNewYorkwithelectricityfromacentralpowerstation.Thiswasatremendousachievement,whichhadpreviouslybeenthoughtimpossible.
7LeonardodaVinci,Italian(1452-1519)Hewasafamousartistwhoseskillforshowinghumanskintonesmadehispaintingsseemtocomealive.Heusedtostudydeadpeopleinordertomakehispaintingsasaccurateaspossibile.Someofhisfamouspaintingsinclude“TheAdorationoftheMagi”andthe“TheLastSupper”.LaterinhislifehelivedinFrancewherehedesignedasubmarineandaflyingmachine.
8SirHumphryDavy,British(1778-1829)Hedidresearchintodifferentgasesanddiscoveredthemedicinalvalueofnitrousoxide(orlaughinggas)asananaesthetic.In1815hedevelopedasafetylampforminers.Previouslytherehadbeenmanyaccidentswhencandlesontheminers’helmetshadexplodedwhenitcameintocontactwithundergroundgasfromthecoaltheminersweredigging.Thesafetyhelmetmadeworkingundergroundverymuchsafer.
9ZhangHeng,Chinese(78-139)Heinventedthefirstseismographtoindicateinthedirectionofanearthquake.Itwasintheshapeofacylinderwitheightdragonheadsroundthetop,eachwithaballinitsmouth.Aroundthebottomwereeightfrogsdirectlyunderadragon’shead.Whenanearthquakeoccurred,aballfelloutofthedragon’smouth,makinganoise.
10StephenHawking,British(1942-)Hehasworkedinastronomyandstudiedblackholesinspace.Hehasshownthatblackholesdonotonlyabsorbeverythingaroundthembut,fromtimetotime,throwoutmatteraswell.Thismaymarkthebeginningofnewgalaxies.Thisisanadvanceontheoldtheorywhichsaidthatblackholes“eat”everythingtheycomeacross.
COMPREHENDING
AnswerkeyforExercise1:
1AnoutbreakofcholerahitLondonin1854.
2JohnSnowbegantotesttwotheories.
3JohnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.
4JohnSnowmarkedthedeathsonamap.
5Hefoundthatmostofthedeathswerenearawaterpump.
6Hehadthehandleremovedfromthewaterpump.
7Heannouncedthatthewatercarriedthedisease.
8KingCholerawasdefeated.
AnswerkeyforExercise2:
1JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera,collectedinformationandwasabletot