teaching plan for unit 13(人教版高二英语下册教学设计)

teachingplanforunit13(人教版高二英语下册教

案教学设计)

\Teachinggoals:

1.Talkaboutwaterandtheocean

2.Practicecommunicativeskills

3.ReviewModalVerbs

4.Writeanexplanationparagraph

TeachingPlan:(SixPeriods)

1stperiod:Warming-upandReading(1)

2ndperiod:Reading(2)

3rdperiod:post-readingandListening(SB)

4thperiod:IntegratingSkills(SB)

5thperiod:Speaking

6thperiod:GrammarandLanguageStudy

Period1WarmingupReading(I)

Teachinggoals:

千里之行，始于足下。

1.TogettheSstounderstandthemainpropertiesofwater

byconnectingthemwithsomecommonphenomenaandlearningto

explainthephenomena.

2.Toenablethemtobeawareoftheimportanceofwater,

makinggooduseofwaterinaproperwayandprotectingwater

resources.

Importantpointsinteaching:

Words:benefit,available,pure,mass,float,absorb,

release,stable,bottom,habitat,

dissolve,property.

Phrases:benefitfrom,rangefrom…to….，alltheway,

bemadeupof,thatis,

freezingpoint,breakdown,mixwith,bemeasuredin,take

advantageof,

keep…steady,manageto,besensitiveto,upto.

Structures:whatever***.,…，thatis,.

Teachingprocedures:

Stepl:Leadin

Readashortpoemandguessitsname:Aletterfrom.

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(Water)

DearUser,

Shametoyouall,theIgnorant,

Iamyourlife

Butyouseemnottovalueme

Givemealltherespect

Forinmeiseternallife

Ifyoucontinueabusingme

Surely,allformsoflifewillwitheraway

Haveyoueverimagined,

Lifewithoutme?

Itellyou,itwillbeunbearable

Thinktwice

Foreverydropcounts...

Qs:1)Whatdoes“Dearuser“herereferto?

2)Whatdoesittalktoitsusers?

千里之行，始于足下。

3)Onwhichplanetdoesitexist?—Ontheearth,whichis

alsocalledthewaterplanet.

4)Doyouknowwhyitiscalled“Thewaterplanet”?

—Becauseaboutthreequartersoftheearthiscoveredby

water.

Step2:Pairwork:Collectasmanywordsaspossiblerelated

towater.Qs:

Howmuchdoyouknowaboutwater?

Isal1waterfreshorsalty?

Step3:Talkaboutthepropertiesofwater.

1.Pairwork

T:Waterisaroundusandinsideus.Wecan'tgowithout

water.Qs:

Whyiswatersoimportanttolivingthings?

Canyoupointoutsomeofitspropertiesor

characteristics?

Suggestedvocabulary:

It'scolorless,tasteless,odorlessanduniversal

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dissolvent.

Itfeelswet;

Itexistsinthreeforms:liquid,solid,gas,andiscycled

throughthewatercycle;

Itcanabsorbalargeamountofheat;

Itstickstogetherintobeadsordrops;

It'spartofeverylivingorganismontheplanet;etc.

2.Groupwork

Learnmoreaboutwater'spropertiesbydoingsomesimple

experimentsandlearntodescribeanexperiment.

Whatpropertyofwaterdoeseachofthefourexperiments

illustrate?

Whatcausesthisphenomenon?

What,sthisphenomenonrelatedto?

①Experiment1showshowairpressurecausesapieceof

thickpapertoclingtoanupturnedglassofwater.

②Experiment2illustrateshowsubstanceswithdifferent

densitybehavewhenplacedinthesamecontainer.

千里之行，始于足下。

③Experiment3isanexampleofhowwaterdissolves

substancesandobjects.

@Experiment4illustratessomeofthedifferencesbetween

saltwaterandfreshwater.

3.T:Whatotherpropertiesofwaterdoyouknowabout?

Whatcausesthefollowingphenomena?Canyouexplain?

①Wecangetalotofnutrientsbydrinkingwaterandhaving

soup.

②Woodfloatsonwaterwhileironsinks.

③Thecoastalareasareoftenneithertoohotnortoocold.

④Whycansomelivingthingsliveatthebottomoftheocean

wherethereisnosunshine?

(Ifthesequestionsaretoodifficult)Tryaskingquestions

aboutthepropertiesofwaterandthengiveanswerstothem.

Step4:Pre-reading

Lookatthetitlesinthetextbelow.Donotreadthewhole

text.Pickoutthesubjectofeachparagraph.Usethestructures

belowtomakesixquestionsrelatedtothesubjects.

Whatis/are?

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Whatdoeslooklike?

Whataredifferentpartsof?

Whatcanbecomparedto?

Howdoeswork?

Whataresomeexamplesof?

1.Skimtofindthewordsandphraseswhichdescribethe

propertiesofwaterinthereadingtext.

2.ScantoFindoutsomebasicfactsaboutlifeintheoceans.

Lifeonearthbeganintheoceansaboutthreebillionyears

ago;

99%ofthelivingspaceonearthisintheoceans;

Thereareaboutfivemillion(known)speciesintheoceans;

Lifeintheoceansrangesfromtinyplanktontogiant

whales.

Step5:Homework

1.Readthetextcarefullyandfindoutthedetailed

informationaboutwaterproperties.

2.Thinkasmanyexamplesaspossibletoillustratewater

千里之行，始于足下。

properties.

Period2Reading(II)

Teachingsteps:

I.Revision

T:Yesterdayyouwererequiredtoaskmorequestionsabout

water'spropertiesandfindoutthedetailedinformationabout

waterpropertiesaswell.Sonowlet'shavealittlequizabout

thepropertiesofwater.

Trueoffalsequestions:

1)Waterisaliquidatroomtemperature,andithasa

relativelyhighfreezingpoint.

2)Thereasonwhywatercandissolvemostsubstanceson

earthisthatwaterhashighheatcapacity.

3)Likealltheothersubstances,watergetssmaller

(contract)whenitfreezes.

4)Purewaterhasahigherfreezingpointandlighterthan

saltwater.

5)Thesalinityoftheearth'soceansisabout3.5%.

6)Whenwaterfreezes,itsdensityincreases.

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7)Otherrecoursessuchasoi1,gas,goldetcisasprecious

asadropofrain.

(TFFTTFF)

II.While-reading

1.Asweallknow,CharlesDarwinisfamousforhis”The

OriginofSpeciesv.(Accordingtohistheoryofevolution)

Qs:1)Wasthereanylifeontheearthbillionsofyears

ago?

2)Ifany,whatwastheoriginallifelikeatthattime?

3)Wherediditlive?—Inthedeepblueseas.

4)Howdoestheworldtakeitsshape,whichisquite

differentfromwhatitusedtobe,especiallythosevarious

organisms?—Billionsofyears'naturalselection.

2.Itissaidthat99%ofthelivingspaceonearthisin

theoceans.

Qs:1)Whatdoesthisfactresultin?—Marinelifeis

incrediblyrichandvaried.

2)Canyougivesomespecificnumbersorexamples?

—Thereareaboutfivemillionspeciesintheoceans.They

rangefromthetiniestplantsallthewayuptogiants(e.g.

千里之行，始于足下。

sharksandwhales).

3)Whatdoesthisfactimply?Doyouagree?

—Waterisanexcellentmediumforlife.

4)Whydoyouagreethatwaterisanexcellentmediumfor

life?(Basedoncommonknowledge)

Waterisaliquidatroomtemperatureandhasarelatively

highfreezingpoint;

Alllivingcreaturesneedfoodtosurvive,butonmany

occasionsthenutrientsbecomeavailabletolivingthingsonly

whentheyaredissolvedbywater.

3.Soweknowthatoneofwater'spropertiesisits

dissolvability(溶解性).

Qs:1)Doyouknowwhatgiveswatersuchauniqueproperty?

—Thechemicalstructureofwater.

2)Whatdoesthewatermoleculelooklike?

—Awatermoleculeconsistsoftwohydrogenatomsandone

oxygenatom.Thetwohydrogenatomsarebondedtooneoxygen

atomtoforma'V，shape.Thetwohydrogenatomsformapolar

molecule,thatis,onewithaslightlypositiveendandonewith

aslightlynegativeend.

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3)Canyougivesomeotherexampleswhicharealsoresulted

fromwater'suniquechemicalstructure?

—Plantscanpullwateruptheirrootsviaacapillary(毛

细管)process;

—Wecangetalotofnutrientsbydrinkingsoup.

That'swater'sanotherproperty-dissolvability.

4.Sincewaterissuchauniversalsolvent,itcandissolve

justaboutanythingincludingmanygasesandsolids.Asaresult,

thereisseawater.

Qs:1)Doyouknowthesalinityoftheearth'soceans?—

about3.5%.

2)Whatdoesitmean?

3)Haveyouevernoticedsuchaphenomenonthatinwinter

waterinsomecontainersorsmallriversoftenfreezeswhile

thatinseasnot?Canyouexplainit?

—Thesalinityofseawatercanaffectthefreezingpoint

ofwater.Seawaterhasalowerafreezingpoint,soevenwhen

thetemperatureofseawaterfallsbelow0℃,seawaterisstill

liquid.

5.However,nomatterwhetheritisseawaterorpurewater,

“woodfloatsonwaterwhileironsinks,,alwaysworks.Howdo

youexplainthat?Whatpropertyofwateristhis?

千里之行，始于足下。

—Ifasubstancehasalowerdensitythanwaterdoes,it

willfloatonwater;Otherwise,itwillsink.

Qs:1)Whatisdensity?Andwhat,sthedensityofpure

water?

—Densityistherelationshipbetweenmassandvolumeand

ismeasuredinkilospercubicmeter(kg/m3).Thedensityof

wateris1,000kg/m3.

2)DoesitalsogoforthephenomenonthatIcelookslarger

thanwaterofequalmass?

—Yes.Water'sdensitydecreaseswhenitturnstoice,so

itsvolumeincreases.

3)Doesallthewaterinthesameriveroroceanhaveequal

density?Tellyourreasons.

-No.Changesinsalinityandtemperatureaffectwater's

density.Coldwaterofhighsalinityusuallyismostdenseand

willtendtosinktothebottomoftheocean.

6.Qs:1)Whatdodifferentdensitiesintheoceanresult

in?

—Densewatersinksandlessdensewaterispushedtothe

surface.Thuswaterintheoceanisalwaysmoving.

2)Whatphenomenacanthisresulthelpusexplain?Please

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giveexamples.(Ifnecessary,givestudentssomehintssuchas

showingapictureetc.)

Oceanmotionhelpsmovenutrientsaroundandaddsenergy

tothemarineecosystems.

Differentmarinecreaturesliveindifferentlevelsofthe

ocean.(Becauseofthefoodstheyneed,sunshineetc.)

7.Readfollowingstatementandthinkwhatconclusionyou

candraw?Orwhatpropertydoesitreferto?

Itissaidthatamanof60kglosesaboutILwaterthrough

breathandskinevaporation(皮肤蒸发)everyday.Inother

words,539kcalheatisreleasedinthesetwoways.Ifsomuch

heatwerekeptinhumanbody,itwouldraisebodytemperature

by9℃.Canyouimaginetheresult?

—Waterhasarelativelyhighheatcapacityandcan

accommodatetheclimateautomatically.Itcanabsorband

releasealotofheatwithoutbigchangesinitstemperature,

thuscreatingastableenvironment.

8.Herearesomemorefamiliarphenomena.

Whatpropertyofwateriseachofthemrelatedto?

Thecoastalareasareoftenneithertoohotnortoocold.

(Water'shighheatcapacity)

Icefloatsonwater.(Density)

千里之行，始于足下。

Whentheseawaterinacontainerisevaporated(蒸发)，

therewillbesomesaltleft.(Dissolvability)

Irrigateinwintercanhelpraisethesoiltemperature.

(Water'shighheatcapacity)

PeopleswimmingintheDeadSeafloat;theycanevenread

apaperwhilelyingontheirbackinthewater,(salinityand

density)

IV.Homework

1.Trytothinkasmanyexamplesaspossibletoshowthat

waterismadeuseoftobringbenefittohumanbeings.

Period3Post-readingListening

Teachinggoals:

1.Togetstudentshaveabetterunderstandingofwater.

2.Tolearnsomenewwordsandsentencestructures.

Teachingprocedures:

PartonePost-reading

I.Betterunderstandthepropertiesofwater

1.“Wherethereiswater,thereislife!”Canyouusesome

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factstoi1lustrateit?

—Waterisamediumforlife.

Sofarasweknow,lifeonlyexistsonearth,becausethere

iswater.Etc.

2.Ourplanetisawaterplanetofwhichtwothirdsofits

surfaceiscoveredbywater.What,smore,ourbodyisalso

mainlycomposedofwater.Doyouknowfollowingfigureswhich

showhowmuchwaterthereisinpartsofourbody?60%,70%,

82%,90%

Uptoofthehumanbodyiswater.

ofthebrainiscomposedofwater.

bloodismadeupofwater.

Thelungsarenearlywater.

3.Wateristhesourceoflife.That'swhywaterisan

excellentmediumforlife.Andyouknowallthisisbecauseof

water'suniqueproperties.

II.Revisiononthepropertiesofwater

1.Whatarethepropertiesofwater?

Waterispolar.

千里之行，始于足下。

Waterisliquidatroomtemperature.

Waterhasarelativelyhighfreezingpoint.

Waterhasdensity1,000kg/m3.

Waterhashighheatcapacity.

2.Whatcauseswatertohavesuchuniqueproperties?

—It'smoleculeform/chemicalstructure.

3.Whatiswatermoleculelike?

Chemicalstructure:twohydrogenatomsandoneoxygenatom.

Differentpartsofit:aslightlypositiveendanda

slightlynegativeend,soitispolar.

Thefunctionofit:itcauseswatertobeabletodissolve

bothsolidsandgases,andthat'swhywatercanbreakdown

nutrientsquickly.

4.Dopurewaterandsaltwaterhavethesamechemical

structure?Doespurewaterhavesalinity?

Qs:1)What?ssalinity?

2)Whatissea/saltwater?—Amixtureofpurewater,

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dissolvedgasesandsolids.

3)Howdoessalinityaffectwater?

4)Howdoesitaffectwater'sweightandfreezingpoint?

—Thehighersalinitywaterhas,theheavierthewateris.

Thehighersalinityis,thelowerthefreezingpointof

wateris.

5.Salinityalsohassomethingtodowiththedensityof

water.Thehighersalinityis,thehigherdensityofwateris.

Qs:1)Whatisdensity?

2)Howisdensitymeasured?

3)Whichisdenser,wateroroil?

4)Whatwillhappenwhenwaterandoilareinthesame

container?Whatdoesthisphenomenonillustrate?

—Oilfloatsonwater.Alessdensesubstancefloatsona

densersubstance.

5)Doeswaterinthesameoceanhavethesamedensity?

—No.Denserwatersinksandpusheslessdensewatertothe

surface.

千里之行，始于足下。

6.That'swhytheoceanwaterwillneverstopmoving.

Oceanmotion

Qs:1)Whatdoesoceanmotionmean?

2)Howdoesoceanmotionwork?

—Denserwatersinksandpusheslessdensewatertothe

surface.

Oceanmotionhelpsmovenutrientsaroundandaddsenergy

tothemarineecosystems.

3)Whatcausesoceanmotion?

—Changesinsalinityandtemperature.

7.Thetemperatureoftheoceanwateralwayskeepssteady,

makingtheoceanasafeandcomfortablehabitat.Doyouknow

why?

—Waterhasarelativelyhighheatcapacity.

Qs:1)Whatisheatcapacity?

2)What,sthefunctionofheatcapacity?

—Itdetermineshowasubstanceabsorbsandreleasesheat;

Itkeepswatertemperaturesteady;

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Itkeepstheearth'stemperaturesteady.

III.Reflection

1.Thereisacloserelationshipbetweensomeproperties

ofwater,forexample,salinity,densityandoceanmotion.How

dotheyaffecteachother?

2.Supposeyouareoneofthemainpropertiesofwater

(resolvability,salinity,density…).Youthinkyouarethe

mostimportantandhavethegreatesteffectonlife.Tryto

persuadeothersbydescribing:1)Whatyouare.

2)Whataffectsyou.

3)Whatyouaremadethemostofbyhumanbeings.

ParttwoListening

I.Pre-listening

GiveaverybriefintroductionofTheRimeoftheAncient

MarineranditsauthorSamuelTaylorColeridge.Hererimeis

thevariantofrhyme.

II.While-listening

1.Listentothestory(Part1)andfindtheinformation

aboutit.(When,where,who,what?)

When:18thcentury?(No,notmentioned)

千里之行，始于足下。

Where:onaship

Who:sailors/mariners

What:Oneofthesailorskillsabirdthatbringsgoodluck

totheship,bydoingwhichhehasbroughtbadluckanddeath

tothesailors.

2.Listentopart1forthesecondtimeandfinishthe

followingtrueorfalsequestions.

1)ThispoemwaswrittenbyaBritishpoetSamuelTaylor

Coleridgeinthe1700s.

2)Inthepoem,oneofthesailorskillsafishunderthe

ship.

3)Itisbelievedthattheanimalhekillsisonethatbrings

goodlucktotheship.

4)Othersailorsaresofrightenedandangrythattheykill

thesailor.

5)Thesailorsareextremelythirstybuttheycan'tdrink

thewaterinthesea,becauseitistoodirty.

(Keys:TFTFF)

3.Listentopart1forthethirdtimeandanswerthe

followingquestions:

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1)Whotellsthestoryinthepoem?

2)Whatdoesoneofthesailorsdo?

3)Whatdoyouthinkwillhappennext?

4)Whyaretheothersailorsfrightened?

4.Listentopart2andcompletethefollowingsentences.

1)Finallytheydecidethathemustdie—the

marinerwhothebird.

2)Hemustitallandwillbyhaving

totellthestory…

3)ontheship,ontheocean,the

marinersuffersfromand.

4)Hisstory,themarinersaysand

asksthemtolearnfromhis.

Keys:1)except,shot;2)livethrough,pay3)Leftalone,

drifting,loneliness,fear;4)told,ancient,farewell,

sufferings

5.Listentopart2againandanswerthefollowingquestions:

1)Whathappenstothesailors?

千里之行，始于足下。

2)Whathappenstothemariner?

3)Whyisthepersontellingthestory?

4)Whoisthepersonactually?

II.While-listening

1.Reflection:Whatdoyoulearnfromthisstory?

—Everythingexistingintheworldhastheirowncertain

values,weshouldunderstandandrespectthem.

2.Creation

Workwithpartnerandtrytocomeupwithagood,scarystory

liketheoneaboutthemariner.

Homework

1.PreviewIntegratingSkills“Nature'sNursery:

Estuaries“onpage22

Period4IntegratingSkills

Teachinggoals:

1.Togetstudentstoknowwhatestuariesareandtheir

functions

2.Tolearntowriteanexplanationparagraph

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Teachingprocedures:

I.Lead-in

LookatthemapofChina,answerthesequestions:

1.Canyounamethethreecitiesmarkedonthemap?Where

arethey?(Chongqing,Shanghai,Dalian)I

2.Howmuchdoyouknowaboutthem?Istheeconomythere

well-developedornot?

3.Whichcityisthemostdeveloped?Why?

Nowlet,slookatthismapandthenanswerthefollowing

questions:

1.Canyoutellwhatmapitis?Whereisit?

2.Isthewaterheresaltyorfresh?

3.What,stheplacecalledwhereriverandtheoceanmeet?

II.While-reading

1.Skimming

1)Findoutthedefinitionofestuary.

(Anestuaryisthebodyofwaterwherearivermeetsthe

千里之行，始于足下。

ocean.Saltwaterfromtheoceanandfreshwaterfromtheriver

mixtogetherinanestuary.Thismixingoffreshandsaltwater

createsauniqueenvironmentfilledwithlifeofallkinds

azonebetweenthelandandsea.)

2)Whatfunctionsofestuarieshavebeenmentionedinthe

passage?

(Greatplacesfornature'syounganimalscleanourwater

byabsorbingnutrientsandpollutantsfromwatercomingfrom

inlandsources;providebothrecreationandeducationforhuman

beings.)

3)Discussion.

Whatlivingconditionsdoyouthinkareneededfor

nature'syoungones?

Doestuarieshavesuchconditionsforthem?

2.Discussion

Whatlivingconditionsdoyouthinkareneededfor

nature'syoungones?

Doestuarieshavesuchconditionsforthem?

3.Scanthepassageandanswerthefollowingquestions.

Whyareestuariessuchgoodplacesfornature'syoung

ones?

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Whatdoes“density“meaninthispassage?

Howdoestuariesaffectthewaterthatpassesthroughthem?

Whyareestuariesmoresensitivetopollutionthanother

areas?

Whyareestuariesimportanttohumanbeings?

(Answertoquestion1)Inestuaries,animalscanenjoyall

thebenefitsoftheoceanswithouthavingtofacemanyofits

dangers.Tidesprovideenergyfortheecosystems,butestuaries

areprotectedfromwavesandstormsbyislands,mudorsand.

Nutrientsfromboththelandandtheoceanarriveinestuaries.

(Answertoquestion2)Itmeansthedegreetowhichanarea

isfilledwiththingsorpeople.

(Answertoquestion3)Theyabsorbnutrientsandpollutants

fromwatercominginlandsources,thuscleaningourwater.

(Answertoquestion4)Becauseestuariesactasfilters(过

滤器)，manypollutantsendupinthem.

(Answertoquestion5)Estuariesprovidebothrecreation

andeducationforhumanbeings.Forexample,peoplecanfish,

swimandhavefunonthebeach;scientistsandstudentshave

endlessopportunitiestostudyavarietyoflifeinthehabitat.

Estuariesalsocontributetotheeconomythroughtourismand

fishing.

千里之行，始于足下。

4.Finishthefollowingpassagewithwordsfromthetext.

Estuariesarebodiesofwateralongcoaststhatare

(形成)whenfreshwaterfromriverswithsalt

waterfromtheocean.Inestuaries,thefreshriverwateris

blockedfromstreamingintotheopenoceanbyeither

surroundingmainland,orislands.Thismixingoffreshandsalt

waterauniqueenvironmentwithlifeofallkinds

-azonebetweenthelandandseaknownasanestuary.The

estuarygathersandholdsaoflife——givingnutrients

fromthelandandfromtheocean,forminganecosystemthat

containsmorecreaturesthananyotherontheearth.

Estuariesarealsoimportantforhumanbeings.Theyprotect

waterqualitybypollutantsfromwatercomingfrom

inlandsources.Theyarecentersfor(消遣)and

education.Estuaries,inshort,aretreasures.

(formed,mixes,creates,filied,variety,habitat,

absorbing,entertainment)

III.Post-readingDiscussion

Aswelearnfromthispassage,manycitieswhicharebuilt

aroundestuaries,likeShanghai,Guangzhou,Ningbo,Shenzhen

areverydeveloped.Canyouexplainwhy?

(TheyarenearYangtzeRiverDelta,PearlRiverDelta…)

(Convenienttransportation,richresources••,)