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必修五Unit1Greatscientists
Usinglanguage
ThreeDimensionalTeachingAims
Knowledgeaims:
LettheSsknowaboutsomescientistsandtheirlifeandcontributions.
GettheSstolearnhowtotalkaboutscientificworkandhowtodescribeaperson.
AbilityAims:
Trainthestudents9speakingabilitybydescribing,talkinganddiscussing.
Trainthestudents9listeningability.
EmotionalAims:
Trainthestudents5abilitytocooperatewithothers.
Encouragethestudentstolearnfromscientiststoshowinterestinscientificexplorationand
research.
TeachingImportantPoints
Trainthestudents?speakingabilitybydescribing,talkinganddiscussing.
Helpthestudentsimprovetheirlisteningability.
TeachingDifficulties
Trainthestudents,listeningability.Especiallylistenandunderstandwhatthespeakersmean
beyondwords.
TeachingAids
ataperecorder,aprojectorandtheblackboard
TeachingProcedure
Step1Greeting
Step2Revision
T:Todaywewillbeginourlessonwithacompetitionbetweengroups.Inthelastperiod,we
learntaboutJohnSnowwhodefeats“KingCholera^^.Now,pleasesaysomethingthatyouknow
aboutit.Ifyouofferacompletesentence,youwillbegiventenmarks.Yourgroupwillbegiven
twentymarkswhenyourexpressionisespeciallybeautiful.
S:JohnSnowwasawell-knowndoctorinLondon,whoattendedQueenVictoriatoeasethe
birthofherbabies.
S:Hebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera,
whichwasthedeadlydiseaseofhisday.
S:JohnSnowgotinterestedintwotheoriesexplaininghowcholerakilledpeople.
S:Hebelievedinthesecondtheorythatispeopleabsorbedthisdiseaseintotheirbodies,
withtheirmeals.Fromthestomachthediseaseattackedthebodyquicklyandsoontheaffected
personwasdead.
Ss:...
(Theteachershouldencouragemorestudentstojoininthecompetition.Attheendofthe
competition,theteachershouldannouncetheresultofthiscompetition.Praisethewinnerand
encouragethelosers.)
T:WhatcanwelearnfromJohnShow?
S:Weshouldbaseourtheoriesonpractice.
S:Weareinspiredtohaveaspiritofscientificexploration.
S:Wedosomeresearchwiththepurposeofservingthepeopleandsociety.
Ss:...
T:Yes,wecanlearnalotfromthescientist.Infact,thereareagreatnumberofpeople
workingonscienceworthyofbeinglearnedbothathomeandabroad.Canyounamesome
scientistsandintroducetheirmaincontributions?
S:Archimedes,whodiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthem
float.
S:Darwinwroteabookexplaininghowanimalsandplantsdevelopedastheenvironment
changed.
S:MadamCuriediscoveredradium.
S:StephenHawkingputforwardatheoryaboutblackholes.
S:ZhangHenginventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened.
Ss:...
T:Youdidagoodjobandlistedmanyscientistsaswellastheircontributions.Today,weare
goingtolearnaboutmorescientists.
Step3Listening(onPages5-6)
Task1Pre-listening
T:Firstlefsenjoythepicture.Whatcanyousee?
S:PresidentJiangZeminandanoldman.
T:PresidentJiangZeminvisitedQianXuesen.
T:WhathaveyoualreadyknownaboutQianXuesen?
S:HeisaChinesescientist,whoseresearchmainlycentersonPhysics.
S:Heishonoredas"ChineseRocketFather”.
S:HehasmadegreatcontributionstospacetravelinChina.
T:Good.Youseemtohaveagoodknowledgeofhim.QianXuesenisafamousscientistwho
hascontributedmuchtothecountry'scauseofscienceandtechnology.
Task2FirstListening
T:Wearetolistentothematerial,whichisaboutQianXuesen.YuPingistellingherfriend
SteveSmithaboutQianXuesen'slife.IfyouwereYuPing,whattopicswouldyouliketocover
whenintroducinghim?
S:Thedatewhenhewasbornandhedied;theplacewherehewasborn,lived,studiedand
died;hisfamily;hisexperience;hisachievements;hiscontributions
T:Excellent.Whenwetalkaboutandintroduceascientist,weusuallydescribetheseaspects.
Now,listencarefullyandtickoutwhichtopicsarementionedinthetape.
(Afterlistening,letthemchecktheanswers.)
Task3SecondListening
T:Thistime.You'llwritedowntheanswerstothefivequestions.Boysandgirls,howcanwe
writetheanswersfastandcorrectly?
S:Weshouldgothroughthequestionsfirstandkeeptheminmind.Whenwearelistening,
wejustneedtopaymuchattentiontothesentencesrelatedtotheanswers.
S:Weneedn'twritedowneachwordoftheanswers.Wejustwritedownsomekeywords.
Laterwecanwritedownthecompleteanswerswiththehelpofthesekeywords.
T:Youareclever.Nowpleasegetready.First,lookthroughtheintroductiontothelistening
material.Then,scanthequestions.
(Twominuteslater,theteacherplaysthetape.ThengiveSstimetoorganizetheirsentences.)
T:Let'schecktheanswersonebyone.
(Ifthestudentsmakesomecommonmistakesortheyseemtohavedifficultyinfindingout
answers,teacherscangivethemsomehintsandletthemlistentoitagain.Afterthat,checkthe
answers.Ifthestudentsfeelitdifficulttomakesenseaboutthekeywordsandunderstandthe
speakers?intentionandattitude,theteachershouldgivethemsomehelp.)
Task4Post-listening
T:Afterlistening,wouldyoupleaseanswersomequestions?
1Whatdidyouhearonthetape?
2WhatcanyoulearnfromQianXuesen?
(Atthisparttheteachermayhavethestudentspresentwhattheyhaveheardonthetapeand
showtheirownopinionaboutwhattheyhavelearnedfromhim.Ifpossible,theteachermayhave
someofthestudentsdothepresentationworkinclass.Bydoingthis,thestudentscangetfull
understandingofwhatthetapeistalkingabout.)
Step4Listening(Page41)
Task1Pre-listening
T:JustnowwelearnedaboutaChinesescientist,QianXuesen,whohasmadegreat
contributionsonspacetravelinChina.Wewillgettoknowanotherscientist,whosecontribution
isonbotany.Canyouguesswhoheis?
S:CarlLinnaeus,maybeDarwin.
T:Youareright.Bothscientistsdidstudybotanyanddevotedtheirtimetotheresearch.As
weknow,CarlLinnaeusdevelopedhissystemabouthowtoclassifyspecies.WhileDarwinwrote
abookontheOriginalofSpecies,inwhichheexplainedhowanimalsandplantsdevelopedasthe
environmentchanged.ThefollowingisaboutCarlLinnaeus.
T:Now,readtheinstructionsaboutthelisteningandchoosewhichofthefollowing
statementsmistcloselydescribeswhatthislisteningpassageisabout.Explainwhytheothersare
wrong.
S:Ithinkthethirdoneisright.Thisisaboutamanwhofindsaflowerandwantstoknowif
itisanewspeciesofflower.Becauseheisinterestedinbiologyandespeciallyinthestudyof
plants.Whathewantstodoistostudywhetheritisanewspecies.Theothertwostatementscan
notconveythestudy.
Task2Listening
T:Whatyousaidisreasonable.Lefslistentogethertofindwhetheryouranswerisright.
(Afterlistening,letthemchecktheanswers.)
T:Listentothetapeagainandtrytocompletethefollowingpassage.
Tofindthenameofanunknownflower,firstyouhavetogotoseeaflower
he/shewilllookinaspecialwrittenbyCarlLinnaeus.Helived
infromto.Hewasveryimportantbecausehesolveda
seriousproblemfor.Hesawallplantsandanimalsproduce.Some
animalsproducebutotherslaywhileplants.Heusedthese
differentwaysofproducingyoungtoputplantsandanimalsinto.Forexample,the
groupcalledbirdslaytoproduceyoungandtheyallhave.Linnaeusput
theplantsandanimalsintosmallergroupsorspecies.Hegaveeachonetwonames.Oneisfbrthe
largegroup,forexampleandoneisforthespecies,forexample.Soa
parrotwouldbe.Hewasthefirstpersontosuccessfullyclassifyallplantsand
animals.
Task3Post-listening
Letthestudentsfillintheblanketsandthencheck.Ifthestudentsfeelitdifficulttodoit,let
themlistenitathirdtime.Aftercheckingtheanswers,askthestudentstoreadittogether.
Step5Listening(Page44)
T:Lookatthescreenandlet'sreadthefollowingnewwordsfirstly.
(Thesewordsarepresentedonthescreen:analyse,pure,foundation,symbol,sin,cousin,
geometry,calculus,mechanics,practical,topology)
T:Canyouguesswhichfieldthenextscientistisinaccordingtothenewwords?
S:Thenextmustbeamathematician.
T:Right.ThismathematicianisLeonhardEuler.JohnSmithisdiscussingwithZhaoYanghis
researchintothelifeandworkofamathematiciancalledLeonhardEuler.Listentothetapeand
fillinthechartontheimportanceofEuler'swork.
Euler'sachievementsExamples
Newsymbolsandterms
Oldareasofmathematics
Newareaofmathematics
Importance
(Afterlistening,asksomestudentstofillinit.Ifmanystudentsfeelitdifficult,letthemlisten
toitagain.Whiledoingit,theteachercanalsoasktwostudentstocometowritetheanswerson
theblackboard.Theteacherhadbettergivethempraiseiftheydoitwell.)
Step6Speaking
Task1Lead-in
T:Boysandgirls,fromthelisteningmaterial,weknowaboutsomescientists.Doyouhavea
dreamtobeascientistinthefuture?
Ss:Yes./No.
T:Supposeyouwouldliketoworkasascientist,andyouarediscussingwithyourpartner
aboutyourfuturejob.Whatquestionswouldyouliketoconcern?
Si:Whatjobdoyouwanttodo?
S2:Howwillyougetthejob?
S3:Whatpreparationswillyoumakeforthefuturejob?
T:Right.Apartfromthose,wecanalsotalkaboutthefollowingquestions:
1Whateducationwillyouneed?
2Whatpersonalitywillbeneeded?
3Whatworkexperiencewouldbeuseful?
4Howlongwillthetrainingtake?
5Howwillyouprepareforthiscareer?
T:Theseexpressionsmayhelpyou:
Ialwayswantedto...because...TheexperienceIwillneedis...
Imightfinditdifficultto...Ineedtopractise...
Mygreatestproblemwillbeto...
Iwillneedtobe/become...
patient,creative,hard-working,co-operative,confident,brave,positive,pleasant,polite,
determined,energetic,strictwith...
Task2Dialogue(pairwork)
T:Nowitistimetodiscusswhatscientificjobeachofyouwouldliketochooseinthefuture
withthehelpofthementionedquestionsandexpressionsinpairs..Iwillgiveyoufiveminutesto
prepareforit.AfterthatIwillletsomeofp.airstocometoactitout.
Sample:
A:Whatjobdoyouwanttodointhefuture?
B:Ialwayswanttobeabotanist.
A:Ifyouwanttobeascientist,whateducationwillyouneed?
B:Iwilltrymybesttogotoakeyuniversitytolearnandstudybotany.
A:Whatworkexperiencewouldbeuseful?
B:TheexperienceIwillneedistostudywildplantsinthewildwhenIamatschool.Now,I
jointhesocialnaturalcluborganizedbyourschool.EverytimeImakeeveryefforttoovercome
difficultytostudyplantsinthewild.
A:Doyouknowwhatpersonalitywillbeneededifyouwanttobeascientistinthefuture?
B:Iwillneedtobepatient,creative,hard-working,brave,energeticandco-operative.
A:Yes,Iagreewithyou.Besidesthosepersonalities,wealsoshouldbedetermined,
confidentandpositive.
B:Iwillmakeeffortstoownsuchgoodquality.
A:Howwillyouprepareforthiscareer?
B:IintendtogotocollegenextyearandthenIwillhaveachancetobeascientist.Butmy
greatestproblemwillbewhetherIwillbeabletogotouniversityinthefuture.
A:Don'tworryaboutitandjustgetdowntopreparingfbrit.Goodchancesalwaysbelongto
thepersonswhohavealreadypreparedforthem.Iamsureyouwillsucceedifyoukeepworking
hard.Iamwaitingforyourgoodnews.
B:Thankyouforyourencouragement.Iwillmakefulluseoftimetostrugglefbrsuccess.
Task3Free-talk
T:Letustalkfreely.Youareallowedtomove.abouttofindastudentyou'dliketotalkwith.
Imagineyouaregoingtomeetaspecialistaboutanewly-foundflower.Yourpartnerwillbethe
assistantfortheflowerspecialist.Youbothneedadescriptionoftheothersoyoucanrecognize
eachotherwhenyoumeet.Nowringtheassistanttosortoutthenecessaryinformation.
(Ofcourse,followingtheabove,thestudentsmaygatheraroundormovearoundtofindtheir
ownfavoritepartnerstotalkwith.Thisisahalf-controlledactivity.Teachersletthemexpress
whatevertheywanttoonconditionthattherearesomeexpressionsonthetheme.Givethemabout
fiveminutestoprepareforit.Later,asksomepairstoactitout.Asusual,theteacherwon'tforget
togivecommentsonwhatthestudentsdo,includingtheteacher'swordspraisingwhattheyare
doinginthefirstfewstages.Onlyinthiswayarethestudentsencouragedtotalkfreelyabout
whattheywanttosayandwhytheythinkso.)
Step7SummaryandHomework
T:Inthisperiod,wemainlyfocusonthespeakingandlisteningabilities.Ifyoufeellistening
orspeakingpoor,youhadbetterpracticemoreafterclass.Practicemakesperfect.Today's
homeworkistodescribeascientisttoyourpartnerandletyourpartnerguesswhoshe/heis.Then
exchange.
TheDesignoftheWritingontheBlackboard
Unit1Greatscientists
Period3ListeningandSpeaking
ThequestionsmaybeusefultodiscusstheTheexpressionsmayhelpyoutodiscussyour
scientificjob,futurescientificjob.
Whatjobdoyouwanttodo?Ialwayswantedto...because...
Whateducationwillyouneed?TheexperienceIwillneedis...
Whatpersonalitywillbeneeded?Imightfinditdifficultto...
Whatworkexperiencewouldbeuseful?Ineedtopractise...
Howlongwillthetrainingtake?Mygreatestproblemwillbeto...
Howwillyouprepareforthiscareer?Iwillneedtobe/becomepatient,creative,
hard-working,co-operative,confident,brave...
ResearchandActivities
Afterclass,usethelibraryortheInternettofindoutfactsaboutimportantwomenscientists
inmedicine,physics,chemistry,biology,astronomyormathematics.Thereareveryuseful
websites(includingthe^Biographiesofwomenmathematicianswebsite'^.Prepareatalkonyour
chosenscientists.Remembertoincludesomeinformationabouttheirlife,theirachievementsand
whytheyareconsideredimportantinsciencehistory.Thengiveyourtalktotheclass.
ResearchforTeaching
Euler,Leonhard
(bomApril15,1707,Basel,Switz.diedSept.18,1783,St.Petersburg,Russia)
Swissmathematicianandphysicist,oneofthefoundersofpuremathematics.Henotonly
madedecisiveandformativecontributionstothesubjectsofgeometry,calculus,mechanics,and
numbertheorybutalsodevelopedmethodsforsolvingproblemsinobservationalastronomyand
demonstratedusefulapplicationsofmathematicsintechnologyandpublicaffairs.
Euler'smathematicalabilityearnedhimtheesteemofJohannBernoulli,oneofthefirst
mathematiciansinEuropeatthattime,andofhissonsDanielandNicolas.In1727hemovedtoSt.
Petersburg,wherehebecameanassociateoftheSt.PetersburgAcademyofSciencesandin1733
succeededDanielBernoullitothechairofmathematics.
Eulerdevotedconsiderableattentiontodevelopingamoreperfecttheoryoflunarmotion,
whichwasparticularlytroublesome,sinceitinvolvedtheso-calledthree-bodyproblem—the
interactionsoftheSun,Moon,andEarth.(Theproblemisstillunsolved.)Hispartialsolution,
publishedin1753,assistedtheBritishAdmiraltyincalculatinglunartables,ofimportancethenin
attemptingtodeterminelongitudeatsea.Oneofthefeatsofhisblindyearswastoperformallthe
elaboratecalculationsinhisheadforhissecondtheoryoflunarmotionin1772.Throughouthis
lifeEulerwasmuchabsorbedbyproblemsdealingwiththetheoryofnumbers,whichtreatsofthe
propertiesandrelationshipsofintegers,orwholenumbers(0,±1,±2,etc.);inthis,hisgreatest
discovery,in1783,wasthelawofquadraticreciprocity,whichhasbecomeanessentialpartof
modernnumbertheory.
Inhisefforttoreplacesyntheticmethodsbyanalyticones,EulerwassucceededbyJ.-L.
Lagrange.But,whereEulerhaddelightedinspecialconcretecases,Lagrangesoughtforabstract
generality;and,whileEulerincautiouslymanipulateddivergentseries,Lagrangeattemptedto
establishinfiniteprocessesuponasoundbasis.ThusitisthatEulerandLagrangetogetherare
regardedasthegreatestmathematiciansofthe18thcentury;butEulerhasneverbeenexcelled
eitherinproductivityorintheskillfulandimaginativeuseofalgorithmicdevices(i.e.,
computationalprocedures)forsolvingproblems.
CarlLinnaeus
A
(bomMay23,1707,Rashult,Smaland,Swed.diedJan.l0,1778,Uppsala)
CarlLinnaeusisaSwedishbotanistandexplorerwhowasthefirsttoframeprinciplesfor
defininggeneraandspeciesoforganismsandtocreateauniformsystemfornamingthem.
Linnaeuswasthesonofacurate.Hisloveofflowersdevelopedatanearlyage;whenonly
eightyearsoldhewasnicknamed"thelittlebotanist.^^HestudiedattheuniversitiesofLundand
Uppsalaandreceivedhisdegreeinmedicinefromthelatter.
Linnaeus,
detailofa
portraitbyA,
Roslin,1775;
inthe
Svenska
Portraltarkivet,
Stockholm
TheSystemaNaturae,whichLinnaeushadshowntothebotanistJanFredrikGronoviusin
manuscript,soimpressedGronoviusthathepublisheditathisownexpense.Linnaeus,systemwas
basedmainlyonflowerparts,whichtendtoremainunchangedduringthecourseofevolution.
Althoughartificial,asLinnaeushimselfrecognized,suchasystemhadthesuprememeritof
enablingstudentsrapidlytoplaceaplantinanamedcategory.Itcameintouseataperiodwhen
therichnessoftheworld'svegetationwasbeingdiscoveredataratethatoutstrippedmore
leisurelymethodsofinvestigation.Sosuccessfulwashismethodinpracticethatitsveryeaseof
applicationprovedtobethegreatestobstacletoitsreplacementbythemorenaturalsystemsthat
supersededit.
Hislateryearsweretakenupbyteachingandthepreparationofotherworks:FloraSuecica
(1745)andFaunaSuecica(1746);twovolumesofobservationsmadeduringthejourneysin
weden,Vastg。taresa(174.7)andSkanska„resa(1751);HortusUpsaliensis(1748);his
PhilosophiaBotanica(1751);andtheimportantSpeciesPlantarum(1753),inwhichthespecific
namesarefullysetforth.In1755hedeclinedaninvitationfromtheKingofSpaintosettleinthat
countrywithaliberalsalaryandfulllibertyofconscience.In1761hewasgrantedaSwedish
patentofnobility,antedatedto1757,fromwhichtimehewasstyledCarlvonLinne.An
apoplecticattackin1774lefthimgreatlyweakened,andhediedfouryearslater.
TheLinnaeanmanuscripts,andhisherbariumandcollectionsofinsectsandshells,purchased
bySirJ.E.Smithin1783,arecarefullypreservedbytheLinneanSocietyatBurlingtonHouse,
London.
MarieCurie
MarieCurie
(bornNov.7,1867,Warsaw,PoL,RussianEmpire.die.dJuly4,1934,nearSallanches,
France)
MariaSklodowskaPolish-bornFrenchphysicistfamousforherworkonradioactivityand
twiceawinneroftheNobelPrize.WithHenriBecquerelandherhusband,PierreCurie,shewas
awardedthe1903NobelPrizeforPhysics.Shewasthenthesolewinnerofthe1911NobelPrize
forChemistry.
Fromchildhoodshewasremarkableforherprodigiousmemory,andattheageof16shewon
agoldmedaloncompletionofhersecondaryeducationattheRussianlycee.Becauseherfather,a
teacherofmathematicsandphysics,losthissavingsthroughbadinvestment,shehadtotakework
asateacherand,atthesametime,tookpartclandestinelyinthenationalist”free
university,^readinginPolishtowomenworkers.Attheageof18shetookapostasgoverness,
whereshesufferedanunhappyloveaffair.Fromherearningsshewasabletofinancehersister
Bronia'smedicalstudiesinParis,ontheunderstandingthatBroniawouldinturnlaterhelpherto
getaneducation.
Shecamefirstinthelicenceofphysicalsciencesin1893.ShebegantoworkinLippmann's
researchlaboratoryandin1894wasplacedsecondinthelicenceofmathematicalsciences.Itwas
inthespringofthisyearthatshemetPierreCurie.
Theirmarriage(July25,1895)markedthestartofapartnershipthatwassoontoachieve
resultsofworldsignificance,inparticularthediscoveryofpolonium(socalledbyMariein
honourofhernativeland)inthesummerof1898,andthatofradiumafewmonthslater.
FollowingHenriBecquerel5sdiscove.ry(1896)ofanewphenomenon(whichshelater
called“radioactivity"),MarieCurie,lookingfbrasu
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