2013北师大版高二下Unit21《Human Biology》(Lesson 1)ppt课件

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Warm-up(Lead-in)ObjectivesQuestionnaireNewwordsDiagramofthebodyListeningLesson1(Lead-in)NewwordsTheOlympicspiritFastreadingFurtherunderstandingHomework教学流程图DoYouLookAfterYourself?1.Howmanyhoursdoyousleeppernight?a)under6hoursb)about7or8hoursc)morethan9hours2.Howoftendoyoucleanyourteeth?a)onceadayb)twiceadayc)aftereverymeal3.Howoftendoyoudophysicalexercise,enoughtomakeyououtofbreath?a)neverb)onceaweekc)twoorthreetimesaweek4.Howoftendoyoueatsweetsorchocolate?a)neverb)sometimesc)everyday5.Howmanypiecesoffreshfruitsdoyoueatperday?a)Oneortwob)morethantwoc)noneCheckyouranswerstothequestionnaire.1.a)Youprobablyaren’tgettingenoughsleep.b)7or8hourspernightissufficientformostpeople.c)youareasleepyhead,aren’tyou!2.a)Onceadayisnotenough!b)OnceinthemorningandonceatnightisprobablyOK.c)Verygood.Dentistsrecommendcleaningteethaftereverymeal.3.a)Youshouldtakeupsomekindofsport!b)Good--onceaweekisbetterthannever!c)Excellent!Youmustbeveryfit.4.a)Welldone!Youprobablysavelotsofmoneyondentistbills.b)Well,everynowandthenisOK.c)Youshouldcutdown!5.a)Good.Astheysay--anappleadaykeepsthedoctoraway!b)Verygood.Doctorsrecommendseveralpiecesoffruitperday.c)Youreallyshouldtrytoeatmorefreshfruit.2.learnandrevisewordsrelatedtothetopic.3.getthegeneralideaofthetextandthewriter’sviewpoints.Inthisperiod,wewillbeableto1.knowtheunitobjectives.kidneyn.肾livern.肝脏brainn.大脑circulatev.循环Forexample:pumpvi.用泵抽出(注入)mineraln.矿物n.听觉n.间隔;间歇n.脉搏vt.消化vi.交换intervaldigestswaphearingpulseReadthewords,thenmatchthewordswiththeirChinesemeanings.Findsixtolabelthepartsofthebodyinthediagram.KeyWordsliverbrainlungsstomachheartkidneyExercise2(Page33)Lookatthefollowingstatementsanddecidewhichpartofthebodyisdescribed.ankle,brain,eye,heart,kidney,bone,knee,liver,lungs,muscle,ribs,spine,stomach,wrist,fingersKeyWords:TheBodyThisorganweighsaboutakiloandismadeupoftwosides.Itislikeasupercomputerthatprocessesinformation.Thisorganislikeabagwhichreeiveseverythingyoueat.Itdigestsyourfoodandsendsvitaminsandmineralsintotheblood.brainstomachThisorganbeatsatregularintervals100,000timesaday.Witheachbeat,itcirculats80mlofbloodthroughthebody—that’s8,000litresofbloodperday!Itpumpsbloodintothelungs,whereitreceivesoxygen,Beforebeingpumpedaroundtherestofthebody.heartThisisaverydelicateorgan.Therearetwoinabodyandtheyhavedelicatelidswhichprotectthem.Lightentersandreachesspeciallightsensitivecells.Theseworklikeacameraandfinallysendsignalstothebrain.eyesTheseorgansabsorboxygenandgetridofcarbondioxide.Theyarefoundoneithersideoftheheart.Theyreceiveairasaresultofbreathingandwhenbloodpassesthrough,Theygiveitoxygen.lungsLesson1SuperAthletesWhichchampionathletedoyouthinkcanrun100metersin8seconds?Isitpossibleforyou?MauriceGreene第一位同时拥有50米、60米和100米3项世界记的男选手。FloydLandis2006年环法自行车赛冠军,第三位获此殊荣的美国人MarionJones2000年悉尼奥运会女子100米、200米、4x400米接力冠军FlorenceGriffith奥运短跑三项金牌得主,同时也是100米及200米短跑的世界纪录保持人BenJohnson汉城奥运会以惊人成绩打破男子百米世界纪录并夺得金牌SuperAthletesdopingn.服用兴奋剂gene-therapy基因疗法dashn.短跑marathonn.马拉松赛跑enhancesupremetoleratedoubtfulseekannualincreasestand;bearhighest,greatestyearlydonotbelieve,suspiciouslookforMatchthewordswiththeirmeanings.abusevt.滥用Theythetrustthecompanyhadshowninthem,thebossisveryangry.滥用abusedusedviolatevt.违反,违背Dodopingandgene-therapytheOlympicspirit?violateviolet违背fundamentaladj.根本的,基本的Dopingisaformofcheating.fundamental根本的abuseviolatecontroversialadj.有争议的opposevt.反对Gene-therapyisveryandmanypeoplefurtherresearchintoit.有争议的反对controversialopposeWhatistheOlympicspirit?Isitgoodforathletestocheatinthecompetition?FastReadingWhatisthegeneralideaofthepassage?A.TheathleteswhotookpartinthefirstOlympicGamesarenotasfastasathletestoday.B.Dopingisahugeprobleminthesportingworld.C.Thepresentandfutureofthesportingworldisbeingseriouslyandnegativelyaffectedbydopingandgene-therapy.D.BenJohnson,FlorenceGriffithandFloydLandishaveallshockedtheworldbytheirspeed.Readthetextagain,matchthekeyinformationwitheachpart.RecordshavefallenDopingGene-therapyOlympicspiritPartone.(1-2)Parttwo.(3-6)Partthree.(7)Partfour.(8)comeacrosstheissue,drug,curedisease,inthewronghands,abuse,toleratedoping,gene-therapy,bigthreat,oppose,violatetheOlympicspirit,takingpartratherthanwinning1.Showthewriter’sattitudetowardsthedrugsandgene-therapy.Youmayrefertothefollowingwordsandexpressionsorthetext.2.Useyourownwordstoshowthewriter’sviewpoints.A:Whichchampionathletecanrun100metresin8seconds?B:Idon’tknow.Butwecomeacrosstheissue-enhancingdrugs.Thesedrugsaredevelopedtohelppeoplewithillnesses,butinthewronghands,theycreate“supremeathletes”.A:Takingthesedrugsisknownas“doping”,theycauseproblemsforthosewhoabusethem.B:Thesportsworlddoesnottoleratedopingasitisafundamentalformofcheating.A:Yes.“Gene-therapy”willbethenextbigthreat.Itiscontroversialandmanypeopleopposefurtherresearchintoit.B:Iagree.Bothdopingandgene-therapyviolatetheOlympicspirit.Thespiritofcompetition-higher,faster,stronger-emphasisestakingpartratherthanwinning.That’swhythousandsofpeoplearecrazyabouttheirheroandthegreatOlympic!HomeworkReviewthekeywordsandreadthetext.

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