高中人教版英语必修五课本答案

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1、教材练习答案及听力原文Unit1WARMINGUP?Answers:1Archimedes,AncientGreek(287-212BC)Hewasamathematician.Hefoundthatifyouputanobjectintowaterthewaterpushestheobjectup.Itrisesandpartlyfloats.Theforceofthewaterpushingitupisthesameastheweightoftheobject.2CharlesDarwin,British(1808-1882)T

2、heOriginofSpecieswaspublishedin1859.Itexplainedhowplantsandanimalshadchangedovertimetofitinwithachangingenvironment.Atthetimeitwaspublisheditwasverycontroversial.ManypeoplebelievedtheBiblewhenitsaidthatGodmadethefirsttwopeople(AdamandEve)andthatallotherpeoplecamefromth

3、esetwo.Darwin’sbookshowedthatpeoplehaddevelopedfromapesinstead.Sothiscausedalotofargumentbetweenreligiousandscientificpeople.HoweverDarwin’sideabecameveryinfluentialandisstillacceptedtoday.3ThomasNewcomen,British(1663-1729)HeimprovedthefirststeampumpbuiltbyThomasSavery

4、in1698andturneditintoasteamenginefortakingwateroutofminesin1712.JamesWattimproveditstillfurtherinthe1770sturningitintothefirstmodernsteamengineusedontherailways.4GregorMendel,Czech(1822-1884)Hegrewpeaplantsanddevelopedideasonheredityandinheritedcharacteristics.Heconcen

5、tratedoncross-fertilisingpeaplantsandanalyzingtheresults.Between1856-1863hegrew28,000peaplants.Heexaminedsevenkindsofseedandplantcharacteristicsanddevelopedsomelawsofinheritance.Thefirstisthatinheritancefactorsdonotcombinebutarepassedtothenextgenerationintact.Second,he

6、foundthateachpartnergiveshalftheinheritedfactorstotheyoung.Third,someofthesefactorsshowupintheoffspring(andsoaredominant).Theotherfactorsaremaskedbythedominantones(andsoarerecessive).5MarieCurie,PolishandFrench(1867-1934)ShewasborninPolandandcametostudyinFrancein1891an

7、dshelivedtherefortherestofherlife.In1898shediscoveredradium.ShereceivedtwoNobelprizes,one(withPierreCurie)forphysics(1903)andoneforchemistry(1911).Sheistheonlypersontohavebeensohonoured.OnthedeathofherhusbandshetookoverhisjobattheSorbonneinParis.Herworkonradioactivitya

8、ndthediscoveryofradiummeantthatshebegananewscientificareaofresearch.ShewasthefirstwomantoreceiveaNobelPrizeandthefirs