人教大纲版高三英语教案Unit4GreenWorld

Unit4GreenWorld

TheFirstPeriodWarmingupandSpeaking

Teachinggoals:

1.Targetlanguage:

a.Importantwords:tulip,rose,peony,strawberry,bunch,

b.Importantsentences:

Canyoutellsomethingabouteachflower?Wheredoesitefrom?

Whatisitusedfor?Whichflowerisyourfavorite?

Explainhowtogrowandtakecareofthesoybeanplant.

Describewhattodoandhowtotakecareoftheflowersyouhavebeengiven.

2.Abilitygoals:Enablestudentstotalkabout^abotany^^(includingthenames,theproperties,

theusageofcertainplants,howtogrowandtakecareofthem,etc)andtosaysomethingaboutit.

3.Learningabilitygoals:Learnhowtodescribeplants(properties;placesofbirth;what

theyareusedfor;howtogrowandtakecareofthem,etc).

Teachingimportantpoints:

Helpstudentslearntodescribeplantsandhowtogrowandtakecareofthem.

Teachingdifficultpoints:

Howtohelpstudentslearnmoreabout"botany”,andthengivedescriptions.

Teachingmethods:

Discussion;Pairwork;Groupwork

Teachingaids:Pictures,slides,aPCandaprojector.

Teachingprocedures&ways:

Step1Revision

T:Inthelastunit,we'velearnedalotaboutAustralia.Nowwho'dliketomakeageneral

speechonthecountry?

S:Letmetry.Australiaistheonlycountryintheworldwhichcoversanentirecontinent.Itis

awealthycountry,whichproducesmetals,preciousstones,coal,grain,meatandwines,andhas

thebiggestironminesintheworld.Australiahasaboutone-sixthoftheworldssheepand

producesalmostone-thirdofitswool.TheclimateinAustraliavariesfromnorthtosouth.

T:Anythingelse?

S:ModernAustraliaismadeupofsixstatesandtwoterritories.ThefirstAustralianswere

theaboriginesandTorresStraitIslanders.ThetwoworldwarshadastronginfluenceonAustralia.

TheofficiallanguageisEnglish,whicharequitedijferentfromBritishandAmericanEnglish.

Step2WarmingUp

T:Good.Youreallydidagreatjob.DoyouknowwhatisthenationalflowerofAustralia?

S:GoldenWattle(Acaciapycnantha)(金合欢,又称相思树).

Showthepicturetostudents.

T:Verygood.Asshowninthepicture,thespeciesis

certainlyattractivewithitsshowy,large,brightgoldenflower

heads.NowlookatthepicturesonPage28inourtextbooks.

Thesearefourflowersmonlyseeninourdailylife.First,

matcheachflowerwithitscorrectname,please.

T:Thereseemsnodifficultyforyoutodothis,right?OK,theansweris...

S:(D-rose;②-tulip;③-peony;©-sunflower

T:Welldone.Susan,whatisyourfavorite?Why?

S:Ilovesunflowerbestofall.Thereare,Ithink,threereasons,first,Iloveeatingtheseedsof

sunflowers,theyaredelicious;second,theirstemscanbeusedtobuildfencesbyfarmers;third,

sunfloweroilisverypopularindailylife.

T:Great.Lily,canyoutellussomethingabouttheotherthreeflowers?

S:OK.TulipsarenativetoCentralandWesternAsia,andpartsoftheMiddleEast,roughly

intheregionnearAfghanistan.Tulipsaremainlyusedfordecoration.Treepeony,theChinese

NationalFlower,nativetoChina,iscalledasthe"Kingofflowers",whichiswidelyusedin

Chinesemedicine.RoseisnativetoSouthwestAsia,anditisoftenusedaspresentwiththe

meaningof"love”.Also,roseflowerisakindofimportantChinesemedicine.

T:Good.Asweallknow,flowersareonlyoneofthemostimportantpartsofplants.Plants

areveryimportanttohumanbeings.Theyprovideusfood,medicine,decoration,etc.Without

them,ourworldwouldbedull,lifeless...Andgrowingplantscanbebothfunandauseful

experience.Doyouhavesuchexperiences?Doyouknowhowtogrowcertainplants?Andhowto

takecareofthem?ThepicturesonPage29isanexampleofplantingsoybeans.Noweveryone,

lookatthepicturesfirst,thentrytoexplainthestagesofgrowingsoybeanandhowtotakeof

thembydescribingeachpicture,youmaywritedownyourideasonthepaper.

Movearoundtheclassandchecktheirwork.Offerlanguagehelpifneeded.

Step3Speakingaboutprocedures

T:Kate,wouldyouliketoshowusyourideas?

S:Gladto.First,putsomesoftsoilinthepotorbox;second,puttheseedsofsoybeansona

wetclothorputtheminthewater;then,puttheseedsintothesoil.Afterseveraldays,theseedse

intobudandoutofthesoil.Lateron,waterthemeverytwodaystillthegreenleavesgrow.

Forthisstep,theteachercan(oraskthestudentsto)makeashortfilmtopresentthestages

ofgrowingsoybeans.

Step4Discussion

T:Welldone,Kate.Soybeansareeasytogrow.Nowimagineyouwanttoplantsomething

elseinyourgardenplot,workingroupsanddecidewhichplants,vegetablesorflowersyour

groupwouldgrow,howtoplantthem,howtotakecareofthem,whentoharvestorpickthem.

Step5Oral-presentation

Askseveralstudentstoshowtheiranswerstotheclass.

Sampleanswers:Carrotsareloadedwithvitamins,andarenutritious.Ontopofbeinggood

foryou,carrotstastegood,too.Soourchoiceiscarrot.

(1)Beforeplanting,workthesoildeeply.

(2)Sowthemverythinly,about1/4inchdeep.Coverthemwithafinegardensoil.Or

sprinklethemontopofthesoil,andlightlywaterthemintothesoil.

(3)Keepcarrotswellweededearlyintheseason.Theyareeasilyovercrowded,withany

petingweedsusuallywinningout.

(4)Begintoharvestcarrotsas"baby"size,thinningtherowasyouharvest.Onceyoubegin

picking,youcanharvestasneeded.

Step6Talking

T:Reallyinteresting.Buthowdotheplantsgrow?

ReadtheinstructiononPage170intheWORKBOOKtothestudents,thenaskthestudents

toworkinpairstodescribe"theprocessofphotosynthesisofplants^^intheirownlanguage.

Adescriptionofbasicphotosynthesis:

Photosynthesisistheprocessbywhichgreenplantsandcertainotherorganismstransform

lightenergyintochemicalenergy.Duringphotosynthesisingreenplants,lightenergyiscaptured

andusedtoconvertwater,carbondioxide,andmineralsintooxygenandenergy-richorganic

pounds.

Step7Assignment

T:Inthisclass,we'velearnedalotaboutplantsandplanting.Askyourparentsorothersto

teachyoumoreaboutplanting,ifyouareinterestedin.AndpleasedoExercise3onPage30inthe

textbooks

Period2Reading

Step1Warmingup

InSB1(下)Unitl9,wehavelearnedsomeknowledgeaboutagriculture.Andwehaveknown

aboutoneofthegreatestscientistsinourhistory——JiaSixie.Didyouremember?Howdowe

plantcrops?

(Weshouldplantriceinafieldoneyearandwheatinthefieldnextyear.)

Howdoweplough?

(Ploughdeepthefirsttimeandlessdeepthesecondtime.)

Inthisunit,wewilllearnaboutscientistswhoareimportanttothehistoryofbotanyand

agriculture.Thisword"botany”植物学，isawordaboutplants.Asweallknow,therearemany

plantsaroundus,suchaswheat,com,tomato,appletreesetc.Withouttheseplants,wecan'tlive.

Buthowmuchdoyouknowaboutthem?Whocantellussomethingaboutthem.

SA:Wheatisakindofplantthatcanbemadeintobread,deliciouscakeswhichcanmakeus

full.

SB:Appletreescanproduceapplesthatcanprovideusvitaminswhichcankeepourbodies

fit.

Yes,theseplantsareveryuseful,buthowdoweplantthem?Wherearetheyfrom?

Itisakindofverycarefulworktoplantthecropsandtrees.

Step2Pre-reading

WhywasCarlLinnaeusimportanttothehistoryofbotanyasascience?

(Hissystemofgroupingplantsinfamilieswasunique,whichbasedonthearrangementof

themaleandfemaleorgansintheflowers.)

Step3While-reading

Fastreading:Howmanypeoplearementionedinthepassage?

CarlLinnaeusDanielSolanderJosephBanksCaptainCook

Carefulreading

Keys:ID2D3B4A?D5C

Post-reading

1.HowdidscientistsclassifyplantsbeforeLinnaeus?

Somescientistsclassifiedplantsintoherbsandtrees,oraccordingtotheshapeofthefruit,or

whethertheyhadflowersornot.

2.WhatwerethegoalsofJamesCook'sfirstvoyagearoundtheworld?

TostudythepassingoftheplanetVenusacrossthesun;torecord,classifyanddescribeall

plantandanimallifeobservedduringthetrip;tosearchforanunknownsoutherncontinent.

3.WhydidJosephBankshavetosupplyhisownmoneytoequippartoftheexpedition?

Becausethegovernmentwouldnotpayforsuchanewfieldofscienceasbotany.

4.Whatcouldbeapossibleexplanationforthename“strawberry”?

Whenpeopleplantstrawberry,theyspreadstrawunderthefruittoreducethenecessary

amountofwatering./berrieslikestraw.

Step4Homework

PleasereadthetextseveraltimesandthentrytowritesomethingaboutJosephBanks:what

dowelearnfromhim?

Period3LanguagePoints

1.Despitehiswealth,heworkedtomakeacareerinscience.wealth意为"财富”，多用作不可

数名词。

Hegainedhisbyprintingoffamouswriters.(NMET1995)

A.wealth;workB.wealths;worksC.wealths;workD.wealth;works

析：根据wealth的词性，可排除B、C；works意为“作品，著作”。

2.Secondly,thepurposeoftheexpeditionwastorecord,classifyanddescribeallplantandanimal

lifeobservedduringthetrip.动词不定式可用作表语，表示主语的具体内容，尤其可用于指未

发生的情况。

Thepurposeofnewtechnologyistomakelifeeasier,itmoredifficult.(上海2005

春)

A.notmakingB.notmakeC.nottomakeD.nortomake

析：两个或多个不定式表示并列或递进关系时，后面的不定式符号to常常省略，但当

它们表示对比关系时，不定式符号to常常保留。本题题意为“新技术的目的是使生活更容易，

而不是让生活更艰难”，两个不定式之间是对比关系

3.(Pl.L2)Attemptshadbeenmadebyotherstoclassifyplantspeciesintogroups...

A.Othershadmadeeffortsfortheclassificationofplantspecies.

B.Othershadbeentryingtogroupplantspecies.

C.Othershadattemptedtoclassifyplantspecies.

4.(Pl.L3)ShowinghowplantswererelatedwasaplexandstrangethingbeforeLinnaeus

developedhissystem.

A.Linnaeus'systemmadeitsimpleandmontoshowhowplantswererelated.

B.BeforeLinnaeusdevelopedhissystem,itwasplexandstrangetoshowhowplantswere

related

5.(Pl.L6)...Linnaeus9ideaofgroupingplantsinfamilieswasunique.

A.Itisveryspecialthatheclassifiedplantsintofamilies.

B.Hisideathatplantsshouldbegroupedinfamilieswasunique.

6.(Pl.L9)...althoughtheyaredifferentatfirstsight.

Takethefirstlookatthem.

7.(P3.LI)Bomintoalifeofprivilege,...

Whenhewasborn,heenjoyedalifeofprivilege.

8.(P3.L2)Manyyoungmeninhispositionwouldleadacosylife,butyoungBankshadan

appetiteforknowledge.

1)inhisposition=inahighersocialpositionlikehim

2)Leadacosylife=liveafortablelife

3)haveanappetitefor=haveadesirefor=longfor

9.(P3.L3)Despitehiswealth,heworkedtomakeacareerinscience.

A.becausehewaswealthy

B.eventhoughhewaswealthy

C.apartfromhiswealth

1)despite=inspiteof;尽管，不论despitehiswealth=eventhoughhewaswealthy.

2)makeacareer向上爬，谋求发迹

HeworkedtomakeacareerinsciencemeansHeworkedhardforthecauseofscience.

10.(P4.Ll),...theRoyalNavyappointedJamesCookasthemanderoftheEndeavourtotakethe

membersofRoyalSocietyonanexpeditiontoTahiti.

1)appoint...as...任命

2)takethemembers...带领皇家学会成员

11.(P6.L5)...onecontinenttoanotheronalargescale.

Anypublicdemonstrationsonalargescalewithoutthepermissionofthecityauthoritiesis

antisocial.

不经市政当局的允许举行大规模游行示威是妨害社会秩序的。

12.(P7.L2)Wonderfuldiscoverieshadbeenmadeofstrangenewlands,...

makeadiscoveryof...:Hemadediscoveriesof300usesforpeanutsand200usesfor

sweetpotatoes.他的发现包括花生的三百种用途和红薯的二百种用途。

Wonderfuldiscoveriesincludednewlands,...

13.(P7.L5)Frombehindhisdesk,however,hewasinvolvedinenterprises...

1)Frombehindthedesk=behindthecurtain幕后

2)beinvolvedin,getinvolvedin参与，卷入，涉及

Don'tinvolveotherpeopleinyourtrouble.别把别人牵涉进你的麻烦中去。

Allthechildrenwereinvolvedintheschoolplay.所有的孩子都参加了排练的剧。

14.Kew:AdistrictofwesternGreaterLondoninsoutheastEngland.ThefamedRoyalBotanic

Gardenswereestablishedin1759andpresentedtothenationin1841.克佑区：英格兰东南部大

伦敦区的西部一区。著名的皇家植物园于1759年建立，1841年被献给国家

Page32Languagestudy,exercise2

Keys:(1)group(2)female(3)Herbs(4)wasappointed(5)botanical(6)was

abandoned

(7)globe(8)Oceania(9)enterprises(10)expense.

Period4Integratingskills

Teachingaims:

1.Getthestudentstograspthemainideaofthetextsoastoimprovetheirreadingability.

2.Getthestudentstolearnthescientificwayforthescientiststodotheirresearchwork-the

waytothinkandobserve.

Teachingimportantpoints:

1.Howtoanalysesanarticlesoastograspitsmainidea.

2.Howtowriteadescriptionaccordingtotheinformationgiven.

Teachingdifficultpoint:

Howtoimprovethestudents9readingability——howtoanalyseanarticle.

Teachingmethods:

1.Pairworkorgroupworktomakeeverystudenttakenanactivepartintheclass.

2.Discussiontogetthestudentstounderstandwhattheyarelearningbetter.

Teachingaids:Aputer,acoursewareandataperecorder

Teachingprocedures:

Step1Revision

Checkthehomework

Step2Scanning

Findouttheimportantpeoplementionedinthetext.

CharlesDarwinFromEnglandGregorMendelFromAustriaGoteTuressonFrom

Sweden

Choosethebestanswersaccordingtothepassage

1.TheresearchbyDarwin,MendelandTuressonshowsthatC

A.geneticsismoreimportantthantheenvironmenttoplants

B.geneticsislessimportantthantheenvironmenttoplants

C.bothgeneticsandtheenvironmentareimportanttoplants

D.neithergeneticsnortheenvironmentisimportanttoplants

2.Darwinobservedthatthebirdswith____wouldeatB

A.smallbeaks;hardseedsB.broadbeaks；hardseeds

C.hardbeaks；hardseedsD.broadbeaks；softseeds

3.DarwinjoinedthescientificexpeditiononC

A.theEndeavourB.TahitiC.theBeagleD.space

4.Scientistsofthenineteenthcenturybelievedthat.D

A.thedevelopmentofnewspecieswasbehindtheinfluenceoftheenvironment

B.thedevelopmentofnewspeciesandtheinfluenceoftheenvironmentwerehandinhand

C.thedevelopmentofnewspecieshadnothingtodowiththeinfluenceoftheenvironment

D.theinfluenceoftheenvironmentwasbehindthedevelopmentofnewspecies

5.Darwinstudiedphysics,chemistryandbotanybecause.B

A.hewasinvitedtojoinscientificexpeditionB.hewasinterestedinthem

C.hecoulddoalotOfexperimentsD.hewantedtofinishhisbook“OntheOriginof

Species"

Step3Carefulreading

Fillinthefollowingblanks

ScientistResearch/experimentResult

CharlesWildlifeofGalapagos,Thereweredifferencesbetweenthespeciesofthedifferent

Darwinmanyvarietiesofgardenislands.Theyshowedaclearrelationshipwiththoseof

rosesAmerica,differencesinhabitatcouldleadtodifferentspecies

inbirdsaswellasinplants.

Manycharacteristicswerepassedonfromonegenerationtothe

Gregor

Flowersandpeasnext,withoutinfluencebytheenvironment.Hisresearchgave

Mendel

birthtothescienceofgenetics.

Foundevidencefortheexistenceofstablevarietieswithin

GoteAwildplantfoundonspeciesinnature.Heshowedthatdifferencesbetweenplantsof

TuressontheSwedishwestcoastonespeciesoccurredasaresultoftheenvironmentalconditions

intheirhabitat.

Thetextcanbedividedintofourparts

PartIPa.1-3:Darwinandhisresearch.

PartIIPa.4-5:Mendelandhisexperiment.

PartIIIPa.6:Turessonandhisstudy

PartIVPa.7:theimportanceandsignificanceoftheresearchofthethree.

Importantsentencesinthepassage

1.ItwasDarwin'svisitontheBeagletotheGalapagosIslesthatgavehimthekeytohisnew

theory.

2.Backhome,inEngland,Darwinrealizedthatdifferencesinhabitatcouldleadtodifferent

speciesinbirdsaswellasinplants.

3.AsaresultofDarwinandMendel?sresearch,scientistsofthenineteenthcenturyformed

thebeliefthatthatinfluenceoftheenvironmentwasbehindthedevelopmentofnewspecies.

4.Itwouldtakeanextgenerationofscientiststobringtheimportanceoftheenvironmenton

speciesbackinview.

Step4Writing

Differenthabitat,differentdandelions

Asshowninthepicture,dandelionstakeondifferentappearancesindifferenthabitats.The

firstpictureshowsahot,dryhabitat,inwhichthedandeliongrowslow,withthin,yellowish

flowersandnarrowlightgreenleaves;whilethesecondoneshowsawetandcoolhabitat,in

whichthedandelionistallerwithrichbutbrightyellowflowersandbroaderleaves.Sowecan

reachaconclusionlikethis:plantschangetheirappearanceandadapttothenewenvironmentif

movedfromonehabitattoanother.

Homework

Makesomeobservationsoftheplantssomewhereinthewildareasasrequiredinthe

textbook,butmakesureyouareinasafedistance.Makenotesofyourimpressionsoftheplants.

Forthistask,youcanworkingroupsorpairsinacorporativeway,andyoumustthinkofwaysto

describewhatyouhaveseenordone.

Period6Grammar

Teachingaims:

1.Reviewwhatcanbeusedastheobject.

2.Reviewsomeimportantrulesabouttheobject.

Teachingimportantpoints:

1.Masterthev.-ingformandtheinfinitiveusedastheobject.

2.Masterthepoundobjectand"it"usedastheformalobject.

Teachingdifficultpoint:

Howtomasterthedifferencesbetweenv.-ingformandtheinfinitiveusedasobject.

Teachingmethod:

Review.Explanationandinductivemethods.

Teachingaids:Aputerandacourseware

Teachingprocedures:

Step1Revision

JosephBankswasbornintoawealthyfamily,andhecouldhaveledalifeofprivilege,but

fromanearlyage,hehadanappetiteforknowledge,hewantedtomakeacareerinscience,he

chosetopursuehispassiontothefull,sohedevotedhismoneytothecareer,hetookpainand

efforttojointheexploration,collectingeverypossibleinformationaboutplants,hehelpedto

developtheroyalgardensintooneofthegreatestbotanicalgardensintheworld,etc.Hereally

contributedalottothescienceofbotany.Hisdevotion,hispursueforknowledge,hissacrifice

willforeverencourageustoembracegreaterdream,tostudyandworkhardtomakeourcountry

richer,strongerandmorebeautiful.

Step2TellwhatisusedastheObject.

Bornin1743,JosephBanksplayedanimportantroleinbotanicalresearchintheeighteenth

century.

(2)EvenbeforegoingtoOxfordin1760,Banksshowedanappetiteforknowledge.

AsamemberoftheRoyalSociety,the25-year-oldBankspaid10,000poundsforthe

equipmentoftheexpedition.

(4)TheRoyalSocietygavehimtheopportunityhehadbeenwaitingfor.

DoyouknowwhoelsejoinedBanksontheexpeditionwithCaptainCookin1768?

(6)In1772hewentonanexpeditionwithafellowstudent.

Heaskedexplorerstosendhimnewplantspeciesfromaroundtheworld,whichheincluded

inthecollectionatKewGarden.

(8)HeenjoyedspendinghoursinthegreenhousesatKew,amongthestrangeplantsfrom

SoutheastAsia.

Thefirst“TeaRoses^^fromChinacameinawidevarietyofpinktones,anditwasJoseph

BankswhointroducedthemtoEnglandattheendoftheeighteenthcentury.

(10)Asarewardforhiscontributiontobotany,JosephBankshadaflowernamedafterhim.

Step3Homework

Prepareforthenextlesson:pre-readthepicturesonPage169WORKBOOKanddothefirst

twoexercisesafterclass.

Unit3-4Phrases

1一位有经验的导游anexperiencedtourguide2由….组成bemadeupof

3弥补；补偿；编造;化妆makeup4被…包围besurroundedby

5代表...standfor.../represent6澳大利亚同胞fellowAustralians

7.美国独立战争theAmericanWarofIndependence8一个独立的国家anindependent

country

9公民权civilrights10一个多元化社会adiverse

society

11对...有影响haveinfluenceon/uponhaveaneffecton/upon

12社会和经济动荡socialandeconomicunrest13遭受...suffer

14经济大萧条theGreatDepression15从…中受益benefitform...

16改变转变..transfbrm…into…/change…into.,17对…的看法one'sattitudeto/

towards

18提高..的居住条件...improveone'slivingcondition19不同于…differ...from/be

differentfrom

20.喜爱…befbndof…21踏上…setfboton…

22以...为主食...feedon..23生.…;产生...givebirthto

24使…在外…keepout…25使集合在一起roundup

26一年四季alltheyearround27与…分享share,sthwithsb

28在周末at/onweekends29在周日onweekdays

30实现；成真etrue31爆发breakout

32.脱离；放弃；革除breakawayfrom33.下蛋layeggs

34闯入；破门而入breakinto35以逻辑顺序inalogicalorder

36因此；作为…结果asaconsequence/asaresult/inconsequence

37由于…asaconsequenceof?asaresultof/inconsequenceof/dueto/owingto/becauseof..

38通过法律来加强权利passlawstostrengthentherights

39官方语言theofficiallanguage40语言障碍languagebarrier

41中号mediumsize42台湾海峡TaiwanStraits

43去野营/冲浪/潜水/远足gocamping/surfing/diving/hiking

44被...分开beseparatedfrom45和…相连beconnectedto

46澳大利亚联邦