人教英语新课标必修3全册精品教案(unit 4 astronomy- the science of the stars)

1 / 17 人教英语新课标必修 3 全册精品教案 (Unit 4 Astronomy: The Science Of The Stars) 莲山课 件 mUnit4Astronomy:TheScienceofTheStars Teachingaims: ffectsusindifferenttimesandplaces. interesttosearchforthemysteryofspace. Emphasis: :gravity,float,cheerup,nowthat,breakout,etc Difficulties: Teachingmethods:skimming,scanning,discussing. Teachingaids:ataperecorder,aprojectorandacomputer. 2 / 17 Teachingprocedures: Thefirstperiodreading StepIPresentation T:Hello,everyone!Todaywe :Wheredowecomefrom?orwecansay:Whoareourancestors? S1:monkeys! S2:BeijingRenwholivedmanyyearsago. S3:Reptiles. S4:mammals. S5:Amphibians. S6:Dinosaurs. T:Verygood!canyouputtheminrightorder? S7:Amphibians,Reptiles,Dinosaurs,mammals,BeijingRen. T:Doyouknowwhatitwaslikebeforelifeappearedonearth? S8:Itwasfullofwater,perhaps. T:Beforethat,whatwasitlike? S9:Sorry,Idon tknow. T:Doyouwanttogetmoreinformation?Todaywe scometoWarmingupfirst. StepIIWarmingup 3 / 17 ,whilethestudentslistenandfollow. T:I (Ifstudentsdon tknowhowtodiscuss,showthemanexample.)Forexample,measurehisbloodpressureandgivehimanX-ray,whatkindofsciencehasbeenused? S1:Biology. S2:chemistry. T:? S3:Ithinkbiochemistrycombinesbiologyandchemistry. S4:Geophysicscombinesgeologyandphysics. T:Whataboutastronomy? S5:Physics. S6:mathematics. T:todosomeresearchonit,: Whatdowemeanwhenwesaywearestudyingasubjectscientifically?orwhat sthecorrectattitudetowardsscience? S7:Weshouldbeobjective,notsuperstitious. T:What sthecorrectwaytoproveascientificidea? S8:Weshoulddesignexperimentstotestitforseveraltimes. 4 / 17 S9:Thenwecananalyzetheresultsanddrawaconclusionatlast. T:Let ,weshoulddesignexperiments, stalkaboutthethirdquestion. Whatarethemostimportantskillsweneedtoberealscientists? S10:Weshouldbeverycareful. S11:Beobjectiveandlogical. S12:Weshouldbewiseenoughtodesignanexperimentandwritethereportsclearly. S13:Weshouldbeabletodrawconclusionsfromtheexperimentsandnotimposeconclusionsonthedata. T: StepPre -reading tknowany,tellthemsome. T: ? Ss:yes,Sir/madam. theuniverse?Pleasegiveanexampleifyouknow. ? AftertheSs discussion,teachersaysthefollowing. T:Nowwho dliketotellusastory?Volunteer! S1:,weallknowthatPanguseparatestheskyfromtheearth. 5 / 17 T:canyoudescribethestoryindetails? S1:Sorry,Ican trememberclearly. T:Whocan?Nobody?NowI StepReading Scanning GettheSstoreadthepassagequi T:We Showthequestionsonthescreen. ? ? ? ? ? T:Nowwhocananswerthefirstone? S1:Watervapour,carbondioxide,oxygen,nitrogenandothergases. T:Whataboutthesecondone? S2:Becausethereisnowateronthemoon. T:Whataboutthethirdone? S3:Becausewaterallowedtheearthtodissolveharmfulgasesintotheoceansandseas. T:Thefourthone? 6 / 17 S4:Becausegreenplantscantakecarbondioxidefromtheatmosphereandfilltheairwithoxygen. T:Whataboutthelastone? S5:Theyweredifferentbecausetheyproducedtheiryoungfromwithintheirbodies. T:Welldone!NowturntoPage26comprehending1,Ithinkyoumaycontinuetoreaditagaintogetmoredetails. Skimming Inthispart,SswillreadthetextagainandthenfinishPart1,2and3. T: keytoPart1:BcBB T:SkimParagraph2,3and4,andfinishPart2and3. key:DBIGEHAcFj T:ForPart3,discussthemwithyourpartner. T:Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether? S:Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth. T:Doyouagreewithhim? S:yes. T:Whatabouttheanswertothesecondquestion? 7 / 17 S:Theyarethecleverestanimalsbecausetheyhavelargerbrainsthananyothercreaturesontheearthsofar. T:Excellentjob!I llcheckhowmuchyouhavelearnedaboutthepassage. StepVListening Listentothetapeforthestudentstofollowandhavefurtherunderstandingofthepassage. T:Readafterthetape,thenanswermesomequestionswithyourbookclosed. Playthetape T:Howdidwatercomeintobeingontheearth? Ifonestudentcan tanswercompletely,asktwoorthreeormorestudents. Ss:Theexplosionoftheearthproducedwatervapor,whichturnedintowaterwhentheearthcooleddown. T:Whyiswaterimportantontheearth? Ss:Becausewaterallowedtheearthtodissolveharmfulgasesintotheoceansandseas. T:,finishthefollowingform. 1smallplantsinwater6forests7893greenplantsonland4insects(onland)52 keytotheexercise: 8 / 17 (onlandandinwater) (onland)(onland)(onland) T:That sdealwithsomelanguagepoints. Explanation T: slookatthesentences: ,whichwereintimetoproducethewatervapour. whichleadsnon-restrictiveattributiveclause. intime:soonerorlater;eventually I llseehimintime. intime(forsth./todosth.):notlate Shewillbebackintimetopreparedinner. in/outoftime:in/notinthecorrecttime Theaudienceclappedintimetothemusic. dthesun. bedifferentfrom:notlikesomeoneorsomethingelseinoneormoreways Note:Wecanusevery,much,quite,entirely,totallytomodifydifferent citylifeisquitedifferentfromcountrylife. goingaroundthesunis-ingformthatservesasattributive. menbreakingthelawwillbepunished. canyouseethegirldancingwithyourboyfriend? 9 / 17 pendonwhetherthisproblemcanbesolved. tocome:servesasattributive Sheisthelastpersontodosuchathing. dependon:somethingmightonlyhappenorbetrueifthecircumstancesarerightforit oursuccessdependsonwhethereveryoneworkshardornot. nowthat:becauseofthefactthat NowthatI mfree,Icanenjoymusicforawhile. Nowthatyou vegrownupyoucandecideityourself. PassageAnalyzing chartofthetext Howlifebeganontheearth water1smallplantsinwater2shellfishandallsortsoffish3greenplantsonland4insects(onland)5amphibians(onlandandinwater)6forests7reptiles(onland)8dinosaurs(onland)9mammals(onland) (onland)5amphibians(onlandandinwater)TextRetelling Retellthetextusingabout100words. StepHomework Retellthepassageaccordingtotheform. 10 / 17 Step1 Showsomepicturesoftheastronautsinthespace Step2 Readthepassageandfillintheform Step3Languagepoints friendLiyanping,anastronomer. Enough:pronadjadv Theboyisoldenoughtodotoschool. Hecouldn trunquicklyenoughtocatchupwiththecat. beoff=setoff Iamofftoday. Weareofftoday. 3getcloseto 靠近，接近，指动态变化 becloseto 距 .近 ，指状态 Theschoolisclosetothepostoffice thandfellover. 1).“A+be+ 倍数 +as+形容词原级 +as+ B”. Thistreeisthreetimesastallasthatone. 11 / 17 Hisfatheristwiceasoldashe. 2).“A+be+ 倍数 +形容词比较级 +than+ B” TheyangtzeRiverisalmosttwicelongerthanthePearlRiver. Thenumberofstudentsinourschoolisthreetimeslargerthanthatintheirs. 3).“A+be+ 倍数 +the+名词 (size,length,amount)+of+B” Thenewlybroadenedsquareisfourtimesthesizeofthepreviousone. ,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth sgravityincreased. breakout 1)战争爆发 2)发生争吵 3)(火灾 )发生 ; 感到高兴振奋 许多，大量 熟悉 ,掌握 ,理解 (sth);exhausted(sb) Step4Homework collectpassagesaboutgravity. 12 / 17 Prepareforspeaking. ThethirdperiodLanguageStudy Step1Revision Translatethefollowingsentences 1.你迟早会成功的。 you llsucceedintime. 2.我的车与你的不一样。 mycarisdifferentfromyours. 3.站在门旁边的那个人是谁？ Whoisthepersonstandingbythedoor? 4.他总是第一个来，最后一个离开。 He salwaysthefirsttocomeandthelasttoleave. 5.既然你已经长大了，你自己决定吧。 Nowthatyouhavegrownupyoucandecideityourself. Step2 checktheexercisesinthispart. Step3Grammar Whatpartdoestheunderlinedpartserveasineachsentence? Atreehasfallenacrosstheroad. youareastudent. Tofindyourwaycanbeaproblem. Smokingisbadforyou. 13 / 17 “Howdoyoudo?”isagreeting. Whatshesaidisnotyetknown. Thatweshallbelateiscertain. Itiscertainthatweshallbelate. Wecanseefromthesesentencesthatasentenceservesassubject,sowecallitSubjectclause Totellwhatitisandtheimportancewithsomeexamples Whattheteachersaidtodaywasquiteright. Thattheyarebadlyinneedofhelpisquiteclear. Whethertheywillsellthehouseisnotyetdecided. Whateverwassaidheremustbekeptsecret. 2it作形式主语 Itisapitythatshehasmadesuchamistake. 1)Itis+adj./n.+从句 Itisapity/shamethat.遗憾的是 Itispossiblethat.很可能 Itisunlikelythat.不可能 2)It+不及物动词 +从句 Itseems/appearsthat.似乎 Ithappenedthat.碰巧 3)It+be+过去分词 +从句 14 / 17 Itissaidthat.据说 Itisknowntoallthat. 众所周知 Itisreportedthat.据报道 Itisbelievedthat. 据信 ; 人们相信 Itissuggestedthat.有人建议 Step4Homework FinishtheexercisesaboutNounclausesastheSubject TheFourthperiodListening Step1Pre-listening IntroduceIsaacNewtonandAlbertEinstein Step2Listening , Step3ListeningonP62 1)_.Who syangLiwei? He sourherowhotraveledintospaceonoctober15,XX. 2).What sthenameofthespaceship? ShenzhouV. 15 / 17 3).Doyouknowwhateducationandexperienceyouneedtobecomeanastronaut? No. hilelistening Step4Homework Afterclass,thinkaboutonequestion:Whatneedstobeanastronaut? TheFifthPeriodSpeakingandWriting Step1Speaking ? oxygencan,spac