Unit 4 Astronomy教案.docx
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Unit 4 Astronomy教案.docx
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Unit4Astronomy教案
Unit4Astronomy:
thescienceofthestars
I.单元教学目标
技能目标SkillGoals
Talkaboutthescienceofthestars,thedevelopmentoflifeandspacetravelandgravity.
Practicegivinginstructions.
Practicetalkingabutproblemsinstudyorlife.
LearntouseNounClausesasthesubject.
Learntowriteanessaytoshowyourproblemsandthewaytoovercomethem.
词汇
1四会词汇
astronomy,system,religiontheoryatombillionglobeviolentcarbonatmosphereunlikefundamentalharmfulacidchainmultiplyoxygenexistthusdioxidepuzzlebiologybiologistgravitysatellitegentlephysicistclimatecrashspaceshippullfloatmass
2认读词汇
astronomer,biochemistry,geophysics,solar,BigBang,vapor,nitrogen,dissolve,amphibian,reptile,generally,mammal,global,comet,IssacNewton,AlbertEinstein,StephenHawking,lessen,weightlessly,cabin,exhaust,exclaim
3词组
solarsystem,intime,layeggs,givebirthto,inone’sturn,carbondioxide,prevent…from,blockout,cheerup,nowthat,breakout,watchout
语法
NounClausesasthesubject
NounClausesasthesubjectisalsocalledtheSubjectClause.ThatmeansaNounClauseservesasSubjectinthesentence.ThewordswhichareusedinthisNounClauseare:
that,whether,who,what,which,when,where,how,why,etc.
TheFirstPeriodIntensiveReading
Teachinggoals教学目标
1.Targetlanguage目标语言
重点词语:
theory,atom,billion,globe,violent,carbon,atmosphere,fundamental,harmful,acid,multiply,oxygen,exist,prevent,dioxide
2.Abilitygoals能力目标
a.EnableSstotalkaboutthescienceofthestars,thedevelopmentoflifeandspacetravelandgravity.
b.Understandthetextandanswerthefollowingquestions:
c.EnabletheSstounderstandthedetailsaboutthepassage,choosingthecorrectansweraccordingtothetextandputtheorderofdevelopmentoflifeintoatimelineandanswerquestions.
d.Retellthepassageusingkeysentences.
3.Learningabilitygoals学能目标
EnableSstolearnhowtotalkaboutthebeginningoflifeontheearth.
Teachingimportantpoints教学重点
a.Talkaboutthebeginningoflifeontheearth.
b.Discusstheorderofdevelopmentoflife.
Teachingdifficultpoints教学难点
a.Understandthebeginningoflifeontheearth.
b.Discussthequestions:
Whatwillourfuturebeiftheearthmaybecometoohotforthelivesonit?
Whyarehumansthecleverestanimalsontheearth?
Teachingmethods教学方法
a.Skimmingandscanning.
b.Asking-and-answeringactivitytochecktheSs’understandingofthetext.
c.Individual,pairorgroupworktofinisheachtask.
d.Discussion.
Teachingaids教具准备
Arecorder,acomputerandaprojector.
Teachingprocedures&ways教学过程与方式
StepIPresentation
T:
Hello,everyone!
Todaywe’llcometoUnit4Astronomy.BeforethatIhaveaquestion:
Wheredowecomefrom?
Orwecansay:
Whoareourancestors?
Student:
.……
T:
Verygood!
Canyouputtheminrightorder?
S7:
Amphibians,Reptiles,Dinosaurs,Mammals,BeijingRen.
T:
Doyouknowwhatitwaslikebeforelifeappearedonearth?
S8:
Itwasfullofwater,perhaps.
T:
Beforethat,whatwasitlike?
S9:
Sorry,Idon’tknow.
T:
Doyouwanttogetmoreinformation?
Todaywe’lllearnsomethingaboutHowLifeBeganontheEarth.TurntoPage25.Let’scometoWarmingupfirst.
StepIIWarmingup
1.Readthethreequestions,whilethestudentslistenandfollow.
2.GivetheSsseveralminutestodiscussthequestions.
3.Collectanswersfromthewholeclass.
4.Checktheanswerswhilediscussing.
T:
I’llreadthethreequestionsforyou.Youshouldlistentomecarefully.(Ifstudentsdon’tknowhowtodiscuss,showthemanexample.)Forexample,medicine.Whensomeonegetsseriousillness,hewillgotothehospital.Thedoctorwillexaminehim.Hewilltakehistemperature,measurehisbloodpressureandgivehimanX-ray,oraCT.Forthewholeprocessoftheexamination,whatkindofsciencehasbeenused?
S1:
Biology.
S2:
Chemistry.
T:
Sowecansaymedicinecombinesbiologyandchemistry.Whataboutbiochemistryandgeophysics?
S3:
Ithinkbiochemistrycombinesbiologyandchemistry.
S4:
Geophysicscombinesgeologyandphysics.
T:
Whataboutastronomy?
S5:
Physics.
S6:
Mathematics.
T:
Verygood.Weshouldknowthatastronomyisamultidisciplinarysubjectandifwewanttodosomeresearchonit,weshouldknowmanysciencesubjectsrelatedtoit.Nowdiscussthesecondquestion:
Whatdowemeanwhenwesaywearestudyingasubjectscientifically?
Orwhat’sthecorrectattitudetowardsscience?
S7:
Weshouldbeobjective,notsuperstitious.
T:
What’sthecorrectwaytoproveascientificidea?
S8:
Weshoulddesignexperimentstotestitforseveraltimes.
S9:
Thenwecananalyzetheresultsanddrawaconclusionatlast.
T:
Let’ssumuptheanswers.Tostudyasubjectscientifically,wemusttrytobeobjective.Inordertotestouridea,weshoulddesignexperiments,thenanalyzetheresultsanddrawaconclusion.Nowlet’stalkaboutthethirdquestion.
Whatarethemostimportantskillsweneedtoberealscientists?
S10:
Weshouldbeverycareful.
S11:
Beobjectiveandlogical.
S12:
Weshouldbewiseenoughtodesignanexperimentandwritethereportsclearly.
S13:
Weshouldbeabletodrawconclusionsfromtheexperimentsandnotimposeconclusionsonthedata.
T:
Ithinkyouhavedonegreatwork.Fromthediscussionweknowthatit’snoteasytobeascientist.Soyoushouldworkharderifyouwanttobeascientist.
StepⅢPre-reading
GettheSstodiscussthequestionsonPage25withtheirpartners.ThenasktheSstotelltheirstories.EncouragetheSstotelldifferentstories.Iftheydon’tknowany,tellthemsome.
T:
Nowpleaselookattheslideshow.Anddiscussthesequestionswithyourpartners.ThenI’llasksomestudentstotellustheirstories.Areyouclear?
Ss:
Yes,Sir/Madam.
1.Doyouknoweachreligionorculturehasitsownideasaboutthebeginningoftheuniverse?
Pleasegiveanexampleifyouknow.
2.Doyouknowwhatascientificideais?
AftertheSs’discussion,teachersaysthefollowing.
T:
Nowwho’dliketotellusastory?
Volunteer!
S1:
Letmetry.InChina,weallknowthatPanguseparatestheskyfromtheearth.
T:
Canyoudescribethestoryindetails?
S1:
Sorry,Ican’trememberclearly.
T:
Whocan?
Nobody?
NowI’lltellyou.Lookatthescreen.
Panguseparatestheskyfromtheearth
Theskyandtheearthwereatfirstoneblurredentitylikeanegg.Panguwasbornintoit.Theseparationoftheskyandtheearthtook18,000years-theYangwhichwaslightandpurerosetobecomethesky,andtheYinwhichwasheavyandmurkysanktoformtheearth.BetweenthemwasPangu,whowentthroughninechangeseveryday,hiswisdom,greaterthanthatoftheskyandhisabilitygreaterthanthatoftheearth.Everydaytheskyrosetenfeethigher,theearthbecametenfeetthicker,andPangugrewtenfeettaller.Another18,000yearspassed,andtherewasanextremelyhighsky,anextremelythickearth,andanextremelytallPangu.ThencametheThreeEmperors(theEmperoroftheSky,theEmperoroftheEarth,andtheEmperoroftheMen.)
Sothesenumberscameintoexistenceandevolvelikethis.Thenumberbeginswithone,becomesestablishedatthree,iscompletedatfive,prospersatseven,andendsinnine.Sotheskyisninetythousandlifromtheearth.
Otherlegendsaboutthebeginningofuniverse
TheBiblicalAccount
“InthebeginningGodcreatedtheheavensandtheearth.Theearthwasformlessandempty,darknesswasoverthesurfaceofthedeep,andthespiritofGodwashoveringoverthewaters.AndGodsaid....”
Day1:
GodspokeandseparatedlightfromdarknesscreatingDayandNight
Day2:
Godspokeandseparatedthewatercreatingskyandocean
Day3:
Godspokeandcreateddryland
Day4:
Godspokeandcreatedthesun,moonandstars
Day5:
Godspokeandcreatedlivingcreaturesintheairandsea
Day6:
Godspokeandcreatedthelandanimalsandman
Day7:
GodrestedandblessedthisdaycallingitHoly
StepⅣReading
Readthepassagecarefullyandanalyzeitsstructure.Writedownthemainideaforeachparagraph.
Para.1:
Awidelyacceptedtheoryabouttheformationoftheuniverse
Para2:
Theformationoftheearth
Para.3:
Theimportanceofwaterforlife
Para.4:
Thedevelopmentofplantsandanimalsontheearth
Para.5:
Thearrivalofhumansandtheirimpactontheearth
Readingandanswerthequestions.
1.Whywastheearthdifferentfromotherplanets?
Thewaterremained.
2.Whywaslifeabletodevelopontheearthbutnotonotherplanets?
Thewaterstayedontheearthbutnotonotherplanets.
3.Whywasitnecessaryforplantstogrowbeforeanimals?
Plantsprovidedoxygenforanimalstobreathe.
4.Whatproblemiscausedbyhumanbeings?
Theycauseglobalwarming.
5.Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?
Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.
6.Whydoyouthinkthathumansarethecleverestanimalsontheearth?
Theyarethecleverestanimalsbecausetheyhavelargerbrainsthananyothercreatureontheearthsofar.
7.Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?
Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.
8.Thereusedtobenineplanetsinthesolarsystem.Recentlyscientistshavedecidedthatoneofthemcannolongerbeconsideredaplanet.Doyouknowthenameofthatplanet?
Doyouknowwhytheyremovedit?
Pluto.Scientistsnowthinkitistoosmalltobecalledaplanet.
Analyzehowlifebeganonearth.
Listening
Listentothetapeforthestudentstofollowandhavefurtherunderstandingofthepassage.
T:
Readafterthetape,thenanswermesomequestionswithyourbookclosed.
Pl
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