高中Unit1 Great Scientists教案.docx
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高中Unit1 Great Scientists教案.docx
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高中Unit1GreatScientists教案
Unit1GreatScientists
Period1Warmingup&Pre-reading
Teachingaim:
Tolearnsomethingaboutsomefamousscientists
Teachingprocedures:
Step1Lead-in
1.Canyounamesomefamousscientists?
2.Inyouropinion,whatqualitiesshouldascientisthave?
(Commoncharacteristics:
bright/brightness;creative;cautious;persuasive;strict;positive;co-operative;enthusiastic;etc.)
3.Whatkindofscientistsdoyouknow?
(geologist;geographer;mathematician;physicist;chemist;agriculturist;astronomer;botanist;biologist;inventor…)
Step2Warmingup
1.Page1,SB.AskSstofinishthequizandfindoutwhoknowsmost.
2.Showsomepicturesofthesegreatscientistsandhaveabriefintroductiontothem.
Step3Pre-reading(Discussion)
1.Whatdoyouknowaboutinfectiousdiseases?
Whatkindofinfectiousdiseasesdoyouknow?
(Infectiousdiseasescanbespreadeasily,theyhaveunknowncauseandmaydogreatharmtopeople.SARS;Birdflu;AIDS;etc.)
2.Whatdoyouknowaboutcholera?
(Tcanintroducethisdiseasebyusingslides)
3.Doyouknowhowtoproveanewideainscientificresearch?
Discussinsmallgroupsthestagesinexamininganewscientificidea.Whatorderwouldyouputthemin?
(Findaproblem→Makeupaquestion→Thinkofamethod→Collectresults→Analysetheresults→Repeatifnecessary→Drawaconclusion)
Step4Languagepoints
1.discovervt.tobethefirsttofind,learnof,orobserve发现,发觉
discover通常指被探索或被揭示物早就客观存在着;invent指的是发明原先不存在的东西。
如:
ColumbusdiscoveredAmericain1492.
AlexanderGrahamBillinventedthetelephonein1876.
2.asconj.
usedincomparisons用于比较:
像……一样
He’sasoldasIam.
inthesamemannerorwaythat照……的方式
DoasIsay.
while;when
Hesawherasshewasgettingoffthebus.
because
Asshehasnocar,shecan’tgetthereeasily.
though
TiredasIwas,Itriedtohelpthem.
asitis:
inreality;infact事实上
Ihopethingswouldgetbetter,butasitistheyaregettingworse.
(7)asitwere:
sotospeak;inacertainway可以说;跟……一样
Heismybestfriend,mybrother,asitwere.
3.characteristic
(1)n.aspecialandeasilyrecognizedqualityofsomeoneorsomething特色,特性
Acharacteristicofthisanimalisitsabilitytoliveforalongtimewithoutwater.
(2)adj.typical;representingaperson’sorthing’susualcharacter独特的
Iheardmyfriend’scharacteristicvoice.
4.thewayofdoingsth.意为“做……的方法”,还可以表达为thewaytodo。
如:
Sheshowedusthewayofcleaningit.=Sheshowedusthewaytocleanit.
Idon’tliketheway(that/inwhich)youspeaktoyourfather.
5.putsth.forward:
(1)tooffer(anidea,suggestionetc.)forconsideration提出
Heputforwardanewplan.
(2)拨快Puttheclocksforward.将时钟拨快
(3)推荐某人或自己任职位;提名
MayIputyournameforwardasapossiblechairmanofthecommittee?
我能否提名你当委员会主席吗?
6.infectiousadj.
(1)capableofcausinginfection传染的,能够导致传染病的
Choleraisaninfectiousdisease.
(2)causedbyorcapableofbeingtransmittedbyinfection传染性的,由传染引发的
Coldsareinfectious,andsoaresomeeyediseases.
(3)easilyorreadilycommunicated有感染力的,容易或快速传播的
aninfectiouslaugh有感染力的微笑
(4)infectvt.传染,感染
infectantn.污染物,传染物adj.传染的,污染的
infectedadj.被感染的
infectionn.传染,传染病,影响,感染
7.ifnecessary是一种省略句式。
在while,when,until,unless,if,once等引导的状语从句中,如从句的主语和主句的主语相同,且从句的谓语部分含动词be时,可以省略从句的主语和动词be。
When(Iwas)aboy,Ilookedatsuchthingsquitedifferently.
Don’tspeakuntil(youare)spokento.
Step5Assignments
1.Revisethewordsin“Warmingup”.
2.Learnthewordsfrom“attend”to“strict”.
3.Prepare“Reading”.
Period2&3Readingandcomprehending
TeachingAims:
①GetSstoimprovetheirreadingabilities.
②LetSsknowthetopic“Greatscientists”
③Knowsomeimportantphrasesoccurringinthisreading
TeachingProcedures:
Step1Leadin
CheckSs’knowledgeaboutsomescientistsandtheirdiscoveries.
①Whodiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?
Archimedes
②Whowroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged?
CharlesDarwin
③Whoinventedthefirststeamengine?
ThomasNewcomen
④Whousedpeastoshowhowphysicalcharacteristicsarepassedformparentstotheirchildren?
GregorMendel
⑤Whodiscoveredradium?
MariesCurie
⑥Whoinventedthewayofgivingelectricitytoeverybodyinlargecities?
ThomasEdison
⑦Whowasthepainterthatstudieddeadbodiestoimprovehispaintingofpeople?
LeonardodaVinci
⑧Whoinventedalamptokeepminersafeunderground?
SirHumphreyDavy
⑨Whoinventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened?
ZhangHeng
⑩Whoputforwardatheoryaboutblackholes?
StephenHawking
Afterallthequestions,thenleadinthepassagewithapicture.Askssiftheyknowthemapandwhatitisusedfor.Givethemtheanswerlater“ItisamaptofindoutthecauseofCholera.”
Step2SkimandScan
Morequestionsaregiventogetthegeneralideasofthispassageandsomeobviousfacts.
Whodefeats“KingCholera“?
JohnSnow
Whathappenedin1854?
CholeraoutbreakhitLondon.
Howmanypeoplediedin10days?
500
WhyistherenodeathatNo.20and21BroadStreetaswellasatNo.8and9CambridgeStreet?
ThesefamilieshadnotdrunkthewaterfromtheBroadStreetpump.
Step3Readingfordetails
1Whycouldn’tthecholerabeundercontrolatfirst?
Neitheritscause,notitscurewasunderstood.
2WhichtheorydidJohnSnowbelievein?
Peopleabsorbedcholeraintotheirbodieswiththeirmeals.
3JohnSnowfinallyprovedthetheoryhebelievedby________.
gatheringinformationwiththehelpofamap
lookingintothesourceofthewaterforBroadStreetandCambridgeStreet
Separatingthosewhosufferedcholerafromthosewhodidn’t
BothAandB(rightchoice)
4Topreventthecholerafromspreadingagain,whatdidJohnSnowdo?
Suggestedthatthesourceofallwatersuppliesbeexamine.Suggestedthatnewmethodsofdealingwithpollutedwaterbefound.Instructedthewatercompaniesnottoexposepeopletothepollutedwateranymore.
Step4Mindmapofthepassage
Paragraph1:
IntroductionofJohnSnowandCholera
Paragraph2:
Twotheory
Paragraph3-5:
Studyofthebreakoutin1854
Paragraph3:
Thinkofamethod:
Testtwotheory
Collecttheresult:
Markthedeath
Analyzetheresult:
Reasonfordeathandnodeath
Paragraph4:
Analyzetheresult:
Findtheresourceofthewater
Paragraph5:
Repeatifnecessary:
Findmoreevidence.
Drawaconclusion:
Cholerawasspreadbygerm
Pollutedwatercarriedcholera
Paragraph6:
PreventionofCholera
Step5.Carefulreading
1.AsktheSstoreadthetextcarefullyandthenfinishthechartinEx.1onpage3.
ScientificReportbyJohnSnow
Theproblem
Nobodyknewthecauseoftheseriousdisease
ofcholera.
Thecause
Idea1:
strangecloudintheairthatattackedvictims.
Idea2:
peopleabsorbedthediseasewiththeirmeals.
Themethod
Collectdatafromthenextcholeraattacktotesttheories.Trytoprovewhichmethodwascorrect.
Theresults
Hefoundthecauseofcholerawasthepollutedwater.
Idea1or2?
Why?
Idea2.Becausethedatashowedaconnectionwiththewater.
Theconclusion
JohnSnowwasabletodefeatcholeraonceitscausewasknown.
Step6Retellthepassage
Providesswithasummarywithsomeblanks.Letthemretellthepassageaswellaspayattentiontosomeimportantwords.
Readthepassageagainandfillintheblanks:
JohnSnowwasawell-known____inLondoninthe___century.Hewantedtofindthe______ofcholerainorderto______it.In1854whenacholera____out,hebegantogatherinformation.He_____onamapwhereallthedeadpeoplehadlivedandhefoundthatmanypeoplewhohaddrunkthedirtywaterfromthe______died.Sohedecidedthatthepollutedwatercarriedcholera.Hesuggestedthatthe_____ofallwatersupplybe_______andnewmethodsof________withpollutedwaterbefound.Finally,“KingCholera”wasdefeated.
Step7Languagepoints
1.attendv.
tobepresentat;goto出席,参加
Hedecidedtoattendthemeetinghimself.
togiveone’sattention;listen注意,倾听(常跟to连用)
Areyouattendingtowhatisbeingsaid?
tolookafter;serve照顾,护理
Ihaveagooddoctorattendingme.
(4)togowith伴随,陪伴
Dangerattendedeverythinghedid.他做的每一件事都带有危险。
attendancen.照顾:
出席人数
Thereisadoctorinattendance.有一位医生照顾。
Therewasalargeattendanceattheconcert.音乐会听众很多。
2easev.
(1)tofreefrompain,worry减轻;缓和
Thedoctorgavehimsomepainkillerstoeasethepain.
Therelationshipbetweenthetwocountrieshaseased.
(2)torelax放松
It’stimeforyourfathertoeaseuponhisworkabit.He’sgettingold.
n.theconditionofbeingcomfortable舒适;
freedomfromdifficulty,orhardship不费力
alifeofease舒适的生活
withease毫不费力地,轻而易举地
tojumpoverwithease很容易跳过去
Hepassedtheexaminationwithease.
3.exposev.
tomakevisible暴露
Newfashionsareexposingmoreandmoreofthebody.
与to连用
Heexposeshisskintothesun.
torevealtheguiltorwrongdoingof揭露
Heexposedtheirplot.他揭露了他们的阴谋。
Thecrimeofthecorruptofficialsmustbeexposedwithoutanyreserve.
对贪官污吏的罪行一定要毫无保留地予以揭发。
4.everytime:
连词,引导时间状语从句,后省略when;类似的还有immediately,themoment,directly,instantly.
EverytimeImeethim,Ialwaysthinkofthethingshappeningbetweenus.
IwillgivethereporttohimimmediatelyIseehim.
IcamedirectlyIgotyourmessage.
5.outbreakn.
(1)asuddenincrease突然发生
Policequelledtheoutbreakofviolence.
(2)asuddeneruption;anoutburst突然爆发
Therehasbeenanoutbreakofmeaslesontown.
6.controlv.&n.
(1)v.tohavepowerover,rule,direct统治;控制
Thegovernmenttriesitsbesttocontrolprices.政府努力控制物价。
Hecannotcontrolhisanger.他无法抑制自己的愤怒情绪。
(2)n.控制;统治;掌握
losecontrolof
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