[推荐精选]Unit 4 Astronomy- the science of stars上课学习上课学习教案
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Unit 4 Astronomy: the science of
stars教案
Unit
4
Astronomy:
the
science
of
stars教案Teachingaims:
.Talkaboutthescienceofstars
2.PractisegivinginstructionsTeachingdifficulties:1. Learntousenounclausesasthesubject
2.Learntowriteanessaytoshowyourproblemsandthewaytoo vercomethem.
3.Vocabulary:astronomy,atmosphere,violent,explode,s urface,disappointed,gradually,cheer,mass,harmful,pr esence,intime,prevent…from…dependon,nowthat,getthehangof,breakout
Teachingprocedures:ThefirstperiodIntensivereading StepⅠPresentation
T:Hello,everyone!TodaywewillcometoUnit4,Astronomy.B eforethatIhaveaquestion:wheredowecomefrom?orwecansa y:whoareourancestors?
S1:monkeys!
S2:BeijingRenwholivedmanyyearsago.
S3:dinosaurs
…
T:Verygood!Doyouknowwhatitwaslikebeforelifeappeared onearth?
S4:Fullofwater…
Bs:Idon’tknow.
T:Doyouwanttogetmoreinformation?
Ss:yes,wedo.
T:Todaywewilllearnsomethingabouthowlifebeganonearth .Turntopage25.Let’scometowarmingupfirst.
StepⅡwarmingup
.Readthethreequestions,whilethestudentslistenan
dfollow.
2.Givethestudentsseveralminutestodiscussthequestion s.
3.collectanswersfromtheclass.
4.checkanswerswhilediscussing.
StepⅢPre-reading
Getthestudentstodiscussthequestionsonpage25withthei rpartners.Thenaskthestudentstotelltheirstories.Enco uragethemtotelldifferentstories,Iftheydon’tknowany,tellthemsome.
T:Nowdiscussthesequestionswithyourpartners.ThenIwil lasksomeofyoutotellusyourstories.Areyouclear?
Ss:yes.
a.Doyouknoweachreligionorculturehasitsownideasabout thebeginningoftheuniverse?Giveanexampleifyouknow.
b.Doyouknowwhatascientificideais?
Readsomestoriestothestudents.
Panguseparatestheskyfromtheearth;
TheBiblicalAccount;
India;
japan;
Europe;
…
StepⅣReading
.Scanning
Getthestudentstoreadthepassagequicklyandaccuratelya ndmeanwhilehelpthestudentstoformagoodhabitofreading .Givethestudentsacoupleofminutestolookthrouththewho lepassage.Tellthemtoreadsilentlyandthenasksomedetai ledquestionsaboutthetext.Encouragethemtoexpressthei rideas.
T:wearegoingtolearnapassageabouthowlifebeganontheea rth.Nowreadthetextquicklyandthenanswermyquestions.
a.whatwasthereontheearthbeforelifebegan?
b.whydoscientistthinktherehasneverbeenlifeonthemoon?
c.whydoanimalsfirstappearinthesea?
d.whydogreenplantshelplifetodevelop?
e.whyweremammalsdifferentfromotheranimals?
Discusstheanswerswiththewholeclass.
2.Skimming
Inthispart,studentswillreadthetextagainandfinishpar t1,2,3
T:Nowskimthepassagefasttofinishpart1,2,3,4Thenwewil lchecktheanswerstogether.
keytopart1:DBIGEHAcFj
Discusstherestwiththestudents.
StepⅤListening
Listentothetapeforthestudentstofollowandhavefurther understandingofthepassage.
T:Readafterthetape,thenanswermesomequestionswithyou rbookclosed.
a.Howdidwatercomeintobeingontheearth?
b.whyiswaterimportantonearth?
StepⅥLanguagepoints
T:Turntopage25.Let’slookatthesentences: