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1、人教课标高二必修5Unit1 ListeningonPage41 Unit1Greatscientists RobertBriggsisveryinterestedinbiologyandespeciallyinthestudyofplants TodayheistellinghisfriendZhangWeisomeexcitingnews Beforeyoulistentothetapediscusswithyourpartnerhowyouwouldfindoutthenameofaflower Newwordsinthelisteningpassage species种类parrot鹦
2、鹉blackbird乌鸦 Nowlistentothetape 1 Whichofthefollowingstatementsdescribeswhatthislisteningpassageisabout Giveyourreasons A Thisisaboutamanwhowantstonameaflower B Thisisaboutamanwhofindsaflowerandwantstoownit C Thisisaboutamanwhofindsaflowerandwantstoknowifitisanewspeciesofflower Itdoesnotgiveenoughin
3、formation Bisinaccurate Listentothetapeagainandcompletethefollowingpassage Tofindthenameofanunknownflowerfirstyoushouldaskyour teachertohelpyou He Shewilllookinaspecial writtenbyCarlLinnaeus Helivedin from to biology book Sweden 1707 1778 Hewasveryimportantbecausehesolveda problemforbiology serious
4、Listentothetapeforthethirdtimeandanswerthesequestions 1 IfRobertBriggsfindstheflowerinthebook whatdoesthatmean Itmeansthathisflowerhasalreadybeenidentifiedandhasaname 2 Howwouldheknowifhislilyisanewspecies Hewouldknowbycheckinghislilyagainstotherliliesinthespecialistbook Ifhislilyisdifferentitwillbe
5、anewspecies 3 Whydoplantsallhavetwonames Allplantshavetwonamesjustlikepeople Thefirstisthegroupofflowerstheybelongtoandislikethefamilyname Thesecondisthekindofflowerwithinthatgroupandislikeagiven personalname 4 WhatwastheseriousproblemforbiologythatLinnaeussolved BeforeLinnaeustherewasnowayoffinding
6、outwhetheraplantwasnewornot Thiscausedproblemsbecausedifferentscientistsclaimedthattheyhadfoundandnamedflowersfirst Afterheorganizedhissystemitwaseasytodiscoverwhetheraplantwasnewornotandsowhohadtherighttonameit ListeningTask onPage44 Makealistofallthegreatmathematiciansthatyouknowoforhavelearnedabo
7、ut Whatdoyouknowoftheirachievements Discussion LeonhardEuler 1707 1783 NationalitySwissFieldsMathematicianandPhysicist pure 纯的 symbol 符号 圆周率 sine 正弦 cosine 余弦 topology 拓扑学 angle 角 diagram 图表 Readthewordsbelowandlearntopronouncethemcorrectly pure 纯的 symbol 符号 圆周率 sine 正弦 cosine 余弦 topology 拓扑学 angle
8、角 diagram 图表 ListentoPart1andtickthewordsbelowthatEulerintroducedintomathematics ListentoPart2andfillinthechartbelow topology introducedmanynewsymbolsintomathswrotemorebooksthananyonebeforeorsincediscoveredanewbranchofmathematics WhatwastheproblemofthecityofKonigsberg Ithadariverrunningthroughit ThecentreofKonigsbergisanislandandasitpassestheislandtheriverbreaksintotwoparts Sevenbridgeswerebuiltsothatthepeopleofthecitycouldgetfromoneparttoanother Thepeoplewonderedifyoucouldwalkaroundthecitysothatyouwouldcrosseachbridgeonlyonce
