高二英语Astronomy教案文档格式.docx

高二英语Astronomy教案文档格式.docx

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skimming,scanning,discussing.

 Teachingaids:

ataperecorder,aprojectorandacomputer.

 Teachingprocedures:

 Thefirstperiodreading

 StepIPresentation

 T:

Hello,everyone!

TodaywellcometoUnit4Astronomy.BeforethatIhavea

question:

Wheredowecomefrom?

Orwecansay:

Whoareourancestors?

 S1:

Monkeys!

 S2:

BeijingRenwholivedmanyyearsago.

 S3:

Reptiles.

 S4:

Mammals.

 S5:

Amphibians.

 S6:

Dinosaurs.

Verygood!

Canyouputtheminrightorder?

 S7:

Amphibians,Reptiles,Dinosaurs,Mammals,BeijingRen.

Doyouknowwhatitwaslikebeforelifeappearedonearth?

 S8:

Itwasfullofwater,perhaps.

Beforethat,whatwasitlike?

 S9:

Sorry,Idontknow.

Doyouwanttogetmoreinformation?

Todaywelllearnsomethingabout

HowLifeBeganontheEarth.TurntoPage25.LetscometoWarmingupfirst.

 StepIIWarmingup

 1.Readthethreequestions,whilethestudentslistenandfollow.

 2.GivetheSsseveralminutestodiscussthequestions.

 3.Collectanswersfromthewholeclass.

 4.Checktheanswerswhilediscussing.

Illreadthethreequestionsforyou.Youshouldlistentomecarefully.（If

studentsdontknowhowtodiscuss,showthemanexample.）Forexample,

medicine.Whensomeonegetsseriousillness,hewillgotothehospital.Thedoctor

willexaminehim.Hewilltakehistemperature,measurehisbloodpressureand

givehimanX-ray,oraCT.Forthewholeprocessoftheexamination,whatkindof

sciencehasbeenused?

Biology.

Chemistry.

Sowecansaymedicinecombinesbiologyandchemistry.Whatabout

biochemistryandgeophysics?

Ithinkbiochemistrycombinesbiologyandchemistry.

Geophysicscombinesgeologyandphysics.

Whataboutastronomy?

Physics.

Mathematics.

Verygood.Weshouldknowthatastronomyisamultidisciplinarysubjectand

ifwewanttodosomeresearchonit,weshouldknowmanysciencesubjects

relatedtoit.Nowdiscussthesecondquestion:

 Whatdowemeanwhenwesaywearestudyingasubjectscientifically?

Or

whatsthecorrectattitudetowardsscience?

Weshouldbeobjective,notsuperstitious.

Whatsthecorrectwaytoproveascientificidea?

Weshoulddesignexperimentstotestitforseveraltimes.

Thenwecananalyzetheresultsanddrawaconclusionatlast.

Letssumuptheanswers.Tostudyasubjectscientifically,wemusttrytobe

objective.Inordertotestouridea,weshoulddesignexperiments,thenanalyzethe

resultsanddrawaconclusion.Nowletstalkaboutthethirdquestion.

 Whatarethemostimportantskillsweneedtoberealscientists?

 S10:

Weshouldbeverycareful.

 S11:

Beobjectiveandlogical.

 S12:

Weshouldbewiseenoughtodesignanexperimentandwritethereports

clearly.

 S13:

Weshouldbeabletodrawconclusionsfromtheexperimentsandnot

imposeconclusionsonthedata.

Ithinkyouhavedonegreatwork.Fromthediscussionweknowthatitsnot

easytobeascientist.Soyoushouldworkharderifyouwanttobeascientist.

 StepⅢPre-reading

 【摘要】小编编辑整理了高二英语试卷：

英语单词总结，供广大同学们在

暑假期间，复习本门课程，希望能帮助同学们加深记忆，巩固学过的知识！

 请点击下载：

人教版高二英语单词总结.doc

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高中>

高二>

高二英语>

高二英语试题

 GettheSstodiscussthequestionsonPage25withtheirpartners.Thenaskthe

Sstotelltheirstories.EncouragetheSstotelldifferentstories.Iftheydontknow

any,tellthemsome.

Nowpleaselookattheslideshow.Anddiscussthesequestionswithyour

partners.ThenIllasksomestudentstotellustheirstories.Areyouclear?

 Ss:

Yes,Sir/Madam.

 1.Doyouknoweachreligionorculturehasitsownideasaboutthebeginningof

theuniverse?

Pleasegiveanexampleifyouknow.

 2.Doyouknowwhatascientificideais?

 AftertheSsdiscussion,teachersaysthefollowing.

Nowwhodliketotellusastory?

Volunteer!

Letmetry.InChina,weallknowthatPanguseparatestheskyfromthe

earth.

Canyoudescribethestoryindetails?

Sorry,Icantrememberclearly.

Whocan?

Nobody?

NowIlltellyou.Lookatthescreen.

 StepⅣReading

 Scanning

 GettheSstoreadthepassagequicklyandaccuratelyandmeanwhilehelptheSs

toformagoodhabitofreading.TeachergivestheSsacoupleofminutestolook

throughthewholepassage.TelltheSstoreadthetextsilentlyandthenasksome

detailedquestionsaboutthetextontheslideshowwiththeirpartners.Teacher

shouldencouragetheSstoexpresstheirideas.

Weregoingtolearnapassageabouthowlifebeganontheearth.Nowlets

lookattheslideshow.Readthetextquicklyandfindanswerstothefollowing

questions.

 Showthequestionsonthescreen.

 1.Whatwasthereontheearthbeforelifecouldbegin?

 2.Whydoscientiststhinktherehasneverbeenlifeonthemoon?

 3.Whydidanimalsfirstappearintheseas?

 4.Whydidgreenplantshelplifetodevelop?

 5.Whyweremammalsdifferentfromotheranimals?

Nowwhocananswerthefirstone?

Watervapour,carbondioxide,oxygen,nitrogenandothergases.

Whataboutthesecondone?

Becausethereisnowateronthemoon.

Whataboutthethirdone?

Becausewaterallowedtheearthtodissolveharmfulgasesintotheoceans

andseas.

Thefourthone?

Becausegreenplantscantakecarbondioxidefromtheatmosphereandfill

theairwithoxygen.

Whataboutthelastone?

Theyweredifferentbecausetheyproducedtheiryoungfromwithintheir

bodies.

Welldone!

NowturntoPage26Comprehending1,Ithinkyoumaycontinue

toreaditagaintogetmoredetails.

 Skimming

 Inthispart,SswillreadthetextagainandthenfinishPart1,2and3.

NowpleaseskimthepassagefasttofinishPart1.Thenwewillcheckthe

answer.

 KeytoPart1:

BCBB

SkimParagraph2,3and4,andfinishPart2and3.

 Key:

DBIGEHACFJ

ForPart3,discussthemwithyourpartner.

Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?

 S:

Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.

Doyouagreewithhim?

Yes.

Whatabouttheanswertothesecondquestion?

Theyarethecleverestanimalsbecausetheyhavelargerbrainsthananyother

creaturesontheearthsofar.

Excellentjob!

Illcheckhowmuchyouhavelearnedaboutthepassage.

 StepVListening

 Listentothetapeforthestudentstofollowandhavefurtherunderstandingofthe

passage.

Readafterthetape,thenanswermesomequestionswithyourbookclosed.

 Playthetape

Howdidwatercomeintobeingontheearth?

 Ifonestudentcantanswercompletely,asktwoorthreeormorestudents.

Theexplosionoftheearthproducedwatervapor,whichturnedintowater

whentheearthcooleddown.

Whyiswaterimportantontheearth?

No.3,finishthefollowingform.

 Keytotheexercise:

 2.shellfishandallsortsoffish5.amphibian（onlandandinwater）

 7.reptiles（onland）8.dinosaurs（onland）9.mammals（onland）

Thatsallforthispassage.Nowletsdealwithsomelanguagepoints.

 Explanation

TurntoPage25.Letslookatthesentences:

 1.Itexplodedloudlywithfireandrock,whichwereintimetoproducethewater

vapour.

 whichleadsnon-restrictiveattributiveclause.

 intime:

soonerorlater;

eventually

 Illseehimintime.

 intime（forsth./todosth.）:

notlate

 Shewillbebackintimetopreparedinner.

 in/outoftime:

in/notinthecorrecttime

 Theaudienceclappedintimetothemusic.

 2.Nobodyknewthatitwasgoingtobedifferentfromotherplanetsgoingaround

thesun.

 bedifferentfrom:

notlikesomeoneorsomethingelseinoneormoreways

 Note:

Wecanusevery,much,quite,entirely,totallytomodifydifferent

 Citylifeisquitedifferentfromcountrylife.

 goingaroundthesunis-ingformthatservesasattributive.

 Menbreakingthelawwillbepunished.

 Canyouseethegirldancingwithyourboyfriend?

 3.Whetherlifewillcontinueontheearthformillionsofyearstocomewill

dependonwhetherthisproblemcanbesolved.

 tocome:

servesasattributive

 Sheisthelastpersontodosuchathing.

 dependon:

somethingmightonlyhappenorbetrueifthecircumstancesareright

forit

 Oursuccessdependsonwhethereveryoneworkshardornot.

 4.Walkingdoesneedabitofpracticenowthatgravityhaschanged.

 nowthat:

becauseofthefactthat

 NowthatImfree,Icanenjoymusicforawhile.

 Nowthatyouvegrown