河北省高二英语必修5Unit1《Great scientists》全套教案Word文档下载推荐.docx
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教学过程
StepⅠ
Lead-in
Askthestudentstothinkofsomegreatinventionsandinventorsinhistory.
T:
Welcomebacktoschool,everyone.Iguessmostofyouhaveenjoyedyourholiday.MaybeIshouldsayeveryonehasenjoyedascientificlife.Why?
Becauseyouhaveenjoyedtheresultsofthescienceandscientists.Nowcanyoutellmethescientistswhoinventedthelights,thegramophoneandthecomputer?
S1:
Edisoninventedthelightsandthegramophone.
S2:
ThefirstcomputerwasinventedbyagroupofAmericanscientists.
StepⅡ
Warmingup
First,asksomequestionsaboutgreatscientists.Second,askallthestudentstotrythequizandfindoutwhoknowsthemost.
Youknowourlifeiscloselyrelatedtoscienceandscientists.Webenefitalotfromthem.Canyounameoutasmanyscientistsaspossible?
Newton.
Watt.
S3:
Franklin.
Sampleanswers:
1.Archimedes,AncientGreek(287-212BC),amathematician.
2.CharlesDarwin,Britain(1808-1882).ThenameofthebookisOriginofSpecies.
3.ThomasNewcomen,British(1663-1729),aninventorofsteamengine.
4.GregorMendel,Czech,abotanistandgeneticist.
5.MarieCurie,PolishandFrench,achemistandphysicist.
6.ThomasEdison,American,aninventor.
7.LeonardodaVinci,Italian,anartist.
8.SirHumphryDavy,British,aninventorandchemist.
9.ZhangHeng,ancientChina,aninventor.
10.StepperHawking,British,aphysicist.
StepⅢ
Pre-reading
Getthestudentstodiscussthequestionsonpage1withtheirpartners.Thenaskthestudentstoreporttheirwork.Encouragethestudentstoexpresstheirdifferentopinions.
Now,class,pleaselookattheslide.Discussthesequestionswithyourpartners.ThenI’llasksomestudentstoreporttheirwork.
Showthefollowingonthescreen.
Whatdoyouknowaboutinfectiousdiseases?
Whatdoyouknowaboutcholera?
Doyouknowhowtoproveanewideainscientificresearch?
Whatorderwouldyouputthesevenin?
Justguess.
Sampleanswer1:
Letmetry.Infectiousdiseasescanbespreadeasily.Theyhaveanunknowncauseandmaydogreatharmtopeople.
Peoplecouldbeexposedtoinfectiousdiseases,somayanimals,suchasbirdflu.
AIDS,SARSareinfectiousdiseases.
S4:
Infectiousdiseasesaredifficulttocure.
Sampleanswer2:
CholeraiscausedbyabacteriumcalledVariancholera.
Itinfectspeople’sintestines,causingdiarrhea,vomitingandlegcramps.
Themostcommoncauseofcholeraispeopleeatfoodordrinkwaterthathasbeencontaminatedbythebacteria.
Choleracanbemildorevenwithoutsymptoms,butaseverecasecanleadtodeathwithoutimmediatetreatment.
Sampleanswer3:
Iknowsth.aboutit.Firstweshouldfindtheproblem.Then,thinkofasolution.
Weshouldcollectasmuchinformationaspossible.
Analyzingresultsisthemostimportantstage.
Beforewemakeaconclusion,itisnecessaryforustorepeatsomestagesorprocesses.
Sampleanswer4:
Ithink“Findaproblem”shouldbethefirststage.
“Makeupaquestion”shouldfollowthefirststage.
“Thinkofamethod”,“Collectresults”and“Analyzeresults”areafterthat.
Ofcourse,before“Makeaconclusion”,weshould“Repeatifnecessary”.
Welldone!
Whenwewanttosolvesomeproblems,firstweshouldfindouttheproblem,dosomeresearchonit,proveyourfindings,andthenmakeaconclusion.Thisisascientificandobjectivewayofresearching.Nowlet’sseehowdoctorJohnSnowdidhisresearch.
StepⅣ
Reading
Letthestudentsskimthewholepassageandtrytoworkoutthemeaningsofthenewwordsandstructuresusingcontext.
TheeffectofcholerainthenineteenthcenturyLondonwasdevastating.Manypeoplediedwithoutknowingthereason.ItwasdoctorJohnSnowwhosavedthepeople.Pleaselookatthescreen.Let’sreadthewholepassageandfindanswerstothequestions.
Showthequestionsonthescreen.
1.Whatconditionsallowedcholeradevelop?
2.Whydoyouthinkpeoplebelievedthatcholeramultipliedintheairwithoutreason?
3.WhatevidencedidJohnSnowgathertoconvincepeoplethatidea2wasright?
Thedirtywatermadethecholeradevelopquickly.
Becausepeoplecouldnotunderstanditscauseandcouldnotgetitcured.Sopeopleimaginedthatsomepoisonousgasintheaircausedthedeaths.
Hefoundthatmanyofthedeathswerenearthewaterpumpwhilesomeareasfarawayfromthewaterpumphadnodeaths.Sowhenpeoplewereaskednottousethewaterpump,thediseasebegantoslowdown.Inthisway,JohnSnowhadshownthatcholerawasspreadbygermsandnotinacloudofgas.
StepⅤ
Textanalyzing
Askthestudentstoanalyzethetextingroups.
Pleaselookatthechartonthescreen.ThechartshowsthateachparagraphofthetextexplainsJohnSnow’sstagesinhisresearch.Pleasereadthetextandfindoutthegeneralideaofeachparagraphandmatchthestagewitheachparagraph.Discussitingroups,andthenreportyouranswers.
Mygroup’sopinionisthis:
stageone“Findaproblem”isexpressedinparagraphone.Thegeneralideaislikethis:
JohnSnowwantedtofindthecausesofcholera.
Ouranswerislikethis:
paragraphtwoexpressesthesecondstage“Makeupaquestion”.Thegeneralideaislikethis:
JohnSnowwantedtoprovewhichtheorywascorrect.
“Thinkofamethod”isthethirdstage.Anditiscontainedinparagraphthree.Thegeneralideaislikethis:
JohnSnowcollecteddataonthosewhowereillordiedandwheretheygottheirwater.
Thefourthstage“Collectresults”liesinparagraphfour.Itsgeneralideaislikethis:
JohnSnowplottedinformationonamaptofindoutwherepeoplediedordidnotdie.
S5:
OurgroupbelieveparagraphfivecontainsthefifthstageofJohnSnow’sresearch.Thegeneralideaislikethis:
JohnSnowanalysedthewatertoseeifthatwasthecauseoftheillness.Sothisstageisto“Analysetheresults”.
S6:
Thesixthstageis“Repeatifnecessary”.Itiscontainedinthesixthparagraph.Thegeneralideaislikethis:
JohnSnowtriedtofindotherevidencestoconfirmhisconclusion.
S7:
Thelastparagraphisabouttheseventhstage“Makeaconclusion”.Itsgeneralideaislikethis:
ThepolluteddirtysourceofdrinkingwaterwastoblameforthecauseoftheLondoncholera.
Asksomestudentstoputtheiranswersinthechart.
ThepolluteddirtysourceofdrinkingwaterwastoblameforthecauseoftheLondoncholera
Nowclass.Canyoutellmewhatstyleofthepassagebelongsto?
Ithinkitisareport.
Herearethreepiecesofwriting.Theybelongtodifferentwritingstyles.Nowreadandfindoutwhatstyleeachpiecebelongsto.
Showthechartandthreepiecesofwritingonthescreen.
Report
Description
Creativewriting
Formallanguagewithfewadjectives
Vividuseofwordswithsimilesandmetaphors
Vividuseoflanguageandmoreinformalstyle
Nospeech
except
quotations
Nospeechexcepttohelpthedescription
Speechtoshowfeelings,reactionsetc.
Notemotional
Emotionaltodescribeatmosphere
Emotionaltodescribefeelings
Onlyonemaincharacter
Nocharacters
Mayhaveseveralcharacters
Factual
Notfactualbutimaginative
Imaginativebutcanbebasedonfact
Structuralaccordingtoexperimentalmethod
Notstructured
Beginning,middle,end
Pasttenseandpassivevoice
Pasttense
MakingWay
OnceGoethe(歌德),thegreatGermanpoet,waswalkinginapark.Hewasthinkingaboutsomethingwhenhenoticedhecametoavery,verynarrowroad.Justatthattime,ayoungmancametowardshimfromtheotherendoftheroad.Itwastoonarrowforbothofthemtopassthroughatthesametime.Theystoppedandlookedateachotherforawhile.Thentheyoungmansaidrudely,“Inevermakewayforafool.”ButGoethesmiledandsaid,“Ialwaysdo.”Thenheturnedbackquicklyandwalkedtowardstheendoftheroad.
WeatherReport
Here’stheweatherreportforthenext24hours.Beijingwillbefinewiththetemperaturefrom4to13.Tokyowillbefinetooandcloudylaterintheday.Thelowesttemperatureislto8.Londonwillberainyandwindylaterintheday.Thehighesttemperatureis8andthelowestis4.NewYorkwillbesunnyandcloudylaterintheday.Thetemperatureis13to19.
Heartbeating
Putyourhandtotheleftsideofyourchest.Trytofeelyourheartbeating.Thehearttakesalittlerestaftereachpumporbeat.Inboysorgirlsofyourage,heartbeatsabout90timesaminute.Agrown-up’sheartbeatsabout70or80timesaminute.Buttheheartbeatisdifferentinthesamepersonatdifferenttimes.Forexample,theheartbeatsfasterduringexercise.Itisalsofasterwhenapersonisangry,scared,orexcited.Duringsleep,theheartbeatslowsdown.
Ithinkthefirstpiece“MakingAWay”isinastyleofcreativewriting.Thesecondpiecebelongstoadescriptionstyle.Thethirdpiecebelongstoareportstyle.
Verygood.Nowlet’sreturntoourtext.Whocantellmethemainideaofthispassage?
I