人教大綱版高三英語教案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)(金合歡,又稱相思樹).

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”植物學(xué)，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意為"財(cái)富”，多用作不可

數(shù)名詞。

Hegainedhisbyprintingoffamouswriters.(NMET1995)

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

析：根據(jù)wealth的詞性，可排除B、C；works意為“作品，著作”。

2.Secondly,thepurposeoftheexpeditionwastorecord,classifyanddescribeallplantandanimal

lifeobservedduringthetrip.動(dòng)詞不定式可用作表語，表示主語的具體內(nèi)容，尤其可用于指未

發(fā)生的情況。

Thepurposeofnewtechnologyistomakelifeeasier,itmoredifficult.(上海2005

春)

A.notmakingB.notmakeC.nottomakeD.nortomake

析：兩個(gè)或多個(gè)不定式表示并列或遞進(jìn)關(guān)系時(shí)，后面的不定式符號(hào)to常常省略，但當(dāng)

它們表示對比關(guān)系時(shí)，不定式符號(hào)to常常保留。本題題意為“新技術(shù)的目的是使生活更容易，

而不是讓生活更艱難”，兩個(gè)不定式之間是對比關(guān)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;盡管，不論despitehiswealth=eventhoughhewaswealthy.

2)makeacareer向上爬，謀求發(fā)跡

HeworkedtomakeacareerinsciencemeansHeworkedhardforthecauseofscience.

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

membersofRoyalSocietyonanexpeditiontoTahiti.

1)appoint...as...任命

2)takethemembers...帶領(lǐng)皇家學(xué)會(huì)成員

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

Anypublicdemonstrationsonalargescalewithoutthepermissionofthecityauthoritiesis

antisocial.

不經(jīng)市政當(dāng)局的允許舉行大規(guī)模游行示威是妨害社會(huì)秩序的。

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

makeadiscoveryof...:Hemadediscoveriesof300usesforpeanutsand200usesfor

sweetpotatoes.他的發(fā)現(xiàn)包括花生的三百種用途和紅薯的二百種用途。

Wonderfuldiscoveriesincludednewlands,...

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

1)Frombehindthedesk=behindthecurtain幕后

2)beinvolvedin,getinvolvedin參與，卷入，涉及

Don'tinvolveotherpeopleinyourtrouble.別把別人牽涉進(jìn)你的麻煩中去。

Allthechildrenwereinvolvedintheschoolplay.所有的孩子都參加了排練的劇。

14.Kew:AdistrictofwesternGreaterLondoninsoutheastEngland.ThefamedRoyalBotanic

Gardenswereestablishedin1759andpresentedtothenationin1841.克佑區(qū)：英格蘭東南部大

倫敦區(qū)的西部一區(qū)。著名的皇家植物園于1759年建立，1841年被獻(xiàn)給國家

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

1一位有經(jīng)驗(yàn)的導(dǎo)游anexperiencedtourguide2由….組成bemadeupof

3彌補(bǔ)；補(bǔ)償；編造;化妝makeup4被…包圍besurroundedby

5代表...standfor.../represent6澳大利亞同胞fellowAustralians

7.美國獨(dú)立戰(zhàn)爭theAmericanWarofIndependence8一個(gè)獨(dú)立的國家anindependent

country

9公民權(quán)civilrights10一個(gè)多元化社會(huì)adiverse

society

11對...有影響haveinfluenceon/uponhaveaneffecton/upon

12社會(huì)和經(jīng)濟(jì)動(dòng)蕩socialandeconomicunrest13遭受...suffer

14經(jīng)濟(jì)大蕭條theGreatDepression15從…中受益benefitform...

16改變轉(zhuǎn)變..transfbrm…into…/change…into.,17對…的看法one'sattitudeto/

towards

18提高..的居住條件...improveone'slivingcondition19不同于…differ...from/be

differentfrom

20.喜愛…befbndof…21踏上…setfboton…

22以...為主食...feedon..23生.…;產(chǎn)生...givebirthto

24使…在外…keepout…25使集合在一起roundup

26一年四季alltheyearround27與…分享share,sthwithsb

28在周末at/onweekends29在周日onweekdays

30實(shí)現(xiàn)；成真etrue31爆發(fā)breakout

32.脫離；放棄；革除breakawayfrom33.下蛋l(fā)ayeggs

34闖入；破門而入breakinto35以邏輯順序inalogicalorder

36因此；作為…結(jié)果asaconsequence/asaresult/inconsequence

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

38通過法律來加強(qiáng)權(quán)利passlawstostrengthentherights

39官方語言theofficiallanguage40語言障礙languagebarrier

41中號(hào)mediumsize42臺(tái)灣海峽TaiwanStraits

43去野營/沖浪/潛水/遠(yuǎn)足gocamping/surfing/diving/hiking

44被...分開beseparatedfrom45和…相連beconnectedto

46澳大利亞聯(lián)邦