人教版高中英语必修五全册教案设计.docx
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人教版高中英语必修五全册教案设计.docx
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人教版高中英语必修五全册教案设计
人教版高中英语必修五全册名师教案设计
Unit1Greatscientists
Thefirstperiod:
Warmingupandreading
Importantpoints:
Letstudentslearnaboutsomegreatscientistsandtheircontributions.
GetstudentstoreadthepassageandknowaboutJohnSnowandhowhedefeated“KingCholera”byusingdifferentreadingskills.
Difficultpoints:
Developstudents`readingabilityandlearnhowtoorganizescientificresearch.
Enablestudentstotalkaboutgreatscientistsandtelltheirstories.
Step1Leadin
Haveafreetalkwithstudents:
wehavelearnedaboutmanygreatpeopleandsomefamousscientistsandnowlookatthepicturesofthesegreatpeople:
IsaacNewton,AlbertEinstein,StephenHawking,QianXuesen,andtelltheircontributions.
Discussthefollowingquestioninsmallgroups:
whatqualitiesdoyouthinkascientistshouldhave?
(persistent,determined,imaginative,careful,creative,clever,strict,patient,……)
Step2Warmingup
1.Askstudentstohaveadiscussioninpairstotrythisquizandfindoutwhoknowsthemost.
Whatdoyouknowaboutgreatscientists?
Questions:
Answers
Whichscientistdiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?
Archimedes,AcientGreek(287BC-21BC)
Whowroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged?
CharlesDarwin,Britain(1809-1882)
Whoinventedthefirststeamengine?
ThomasNewcomen,British(1663-1729)
Whousedpeastoshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren?
GregorMendal,Czech(1822-1884)
Whodiscoveredradium?
MarieCurie,PolishandFrench(1867-1934)
Whoinventedthewayofgivingelectricitytoeverybodyinlargecities?
ThomasEdison,American(1847-1931)
Whowasthepainterthatstudieddeadbodiestoimprovehispaintingofpeople?
LeonardodaVinci,Italian(1452-1519)
Whoinventedalamptokeepminerssafeunderground?
SirHumphryDavy,British(1778-1829)
Whoinventedtheearliestinstrumenttotellpeoplewhereearthquakehappened?
ZhangHeng,Chinese(78-139)
Whoputforwardatheoryaboutblackholes?
StephenHawking,British(1942-)
Step3Pre-reading
1.Doyouknowhowtoproveanewideainscientificresearch?
Discussinsmallgroupsthestagesinsettingoutanewscientificidea.Whatorderwouldyouputthemin?
Drawaconclusion,thinkofamethod,collectresult,makeaquestion,findaproblem,analyzetheresults,findsupportingevidence
(Suggestedanswers:
findaproblem→Makeaquestion→Thinkofamethod→Collectresults→Analyzetheresult→Findsupportingevidence→Drawaconclusion)
2.Whatdoyouknowaboutinfectiousdiseases?
Whatdoyouknowaboutcholera?
(Infectiousdiseasescanspreadeasily.Theymaydogreatharmtopeople.AIDSandSARSareinfectiousdiseases.Theyaredifficulttocure.)
(Cholera(霍乱)infectspeople`sintestines(肠),causingdiarrhea(腹泻),vomiting(呕吐)andlegcramps(腿部痉挛).Themostcommoncauseofcholeraisthatpeopleeatordrinkwaterpollutedbythebacteria(细菌).Aseverecasecanleadtodeathwithoutimmediatetreatment.)
Step4Reading
1.Skimming:
askstudentstoskimthetextandtrytofindthemainideaofthepassageastheycan.
(Themainidea:
HowJohnSnowcollected,analyzedthedataandfoundthecauseofthediseaseandsolvedit.)
2.Scanning:
askthemtotrytogetdetailedinformationandthenchoosethecorrectanswersafterreadingthepassage.
1).JohnSnowbecameinspiredwhen_______.
A.hebecameawell-knowndoctorinLondon
B.heattendedQueenVictoriantoeasethebirthofherbabies
C.hethoughtabouthelpingordinarypeopleexposedtocholera
D.hefoundthecauseofcholeraanddefeated“KingCholera”
2).ThereasonwhyJohnSnowusedthemapinhisresearchwasthatwithitshelp______.A.hewouldnotlosehisway
B.hecouldfindthehousesinBroadStreetandCambridgeStreeteasily
C.hecouldfindoutwhatcausedtheoutbreakofcholera
D.hecouldfindouthowmanypeopledied
3).Whydidsuchhousesas20and21BroadStreetandCambridgeStreethavenodeaths?
Because________.
A.peoplethereweregivenfreebeerandtheyhadnotdrunkthewaterfromBroadStreetpump
B.peopletherehadknownthatthewaterwaspollutedbythedirtywaterfromLondon
C.thediseasebegantoslowdowninBroadStreetandCambridgeStreet
D.peopleinthesefamiliesweremuchstrongerthanthoseneartheBroadStreetpump
4).Thefollowingmeasuresshouldbetakentopreventcholeraexcept_______.
A.alwaysdrinkingbeer
B.instructingthewatercompaniesnottoexposepeopletopollutedwateranymore
C.examineallwatersupplies
D.findingnewmethodsofdealingwithpollutedwater.
5).WhatmadeJohnSnowfindthecauseofcholera?
A.QueenVictoria`sorder
B.hiswife`sdeath
C.Kindness,carefulnessandgoodobservation
D.Strongdetermination,patienceandselfishness
(Theanswers:
CCAAC)
3.Intensivereading:
askstudentstoreadthepassagecarefullytogetthedetailedinformationandthenfillinthechart.
ScientificreportbyJohnSnow
Theproblem
Nobodyknewthecauseoftheseriousdisease---cholera
Thecause
Idea1:
astrangecloudofdangerousgasintheairattackedpeople
Idea2:
peopleabsorbedthediseaseintotheirbodieswiththeirmeals
Themethod
Collectdatafromthenextcholeraoutbreaktotestthetwotheories,andtrytoprovewhichonewascorrect.
Theresults
HefoundthatmanyofthedeathswereneartheBroadStreetwaterpumpandthesupportingevidenceshowedthatcholerawascausedbythepollutedwater.
Idea1or2?
Why?
Idea2.becausetherewasaconnectionbetweenthedrinkingwaterandthedeaths.
Theconclusion
JohnSnowwasabletoshowthatcholeracouldbedefeatednowthatitscausewasknown.
4.Answerthequestions:
1).JohnSnowbelievedIdea2wasright.Howdidhefinallyproveit?
(HefinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtotheBroadStreetoutbreak,collectedinformationandwasabletotiecasesoutsidetheareatopollutedwater.)
2).DoyouthinkJohnSnowwouldhavesolvedthisproblemwithoutthemap?
(No.ThemaphelpedJohnSnoworganizehisideas.Hewasabletoidentifythosehouseholdsthathadhadmanydeathsandchecktheirwater-drinkinghabits.Heidentifiedthosehousesthathadhadnodeathsandsurveyedtheirdrinkinghabits.Theevidenceclearlypointedtothepollutedwaterbeingthecause.)
3).Cholerawasa19thcenturydisease.Whatdiseasedoyouthinkissimilartocholeratoday?
Why?
(Threediseases,whicharesimilartoday,areSARS,AIDSandbirdflu,becausetheyareserious,haveunknowncausesandneedpublichealthcaretosolvethem.)
5.Fillintheblanks:
HowdidJohnSnowfinallydefeatcholera?
Asthediseasespreadquickly,JohnSnowbegantogatherinformation.Hemarkedonamapwhereallthedeadpeoplehadlived,analyzedalltheevidenceandfoundoutthepollutedwaterwasthecause.Thenhesuggestedthatthesourceofalldrinkingwatershouldbeexamined.
根据课文内容填空:
Theproblem
Nobodyknewthecourseoftheseriousdiseaseofcholera
Twotheoriesthatpossiblyexplainedhowcholerakilledpeople
Choleramultipliedintheair.Acloudofdangerousgasfloatedarounduntilitfounditsvictims.
Peopleabsorbedcholeraintotheirbodieswiththeirmeals.
Themethodsoffindingthecause
JohnwasreadytobeginhisenquirywhenanothercholeraoutbreakhitLondon.
Hemarkedonthemaptheexactplaceswhereallthedeadpeoplehadlived.
HediscoveredmanyofthedeathswerenearthewaterpumpinBroadstreet
Johnlookedintothesourceofthewaterandfounditcamefromapollutedriver.
Drawingaconclusion
Heannouncedwithcertaintythatpollutedwatercarriedandspreadcholerawithextraevidence.
Themethodsofpreventingthedisaster
Examiningthesourceofallthewatersupplies.
Instructingthewatercompaniesnottoexposepeopletopollutedwater.
Step5Post-reading
1.Encouragestudentstofillinthestagesofascientificexperimentatthetopofeachparagraph.Askstudentstolookateachparagraphanditsheadinginturn.GetthemtowritedowntheevidenceorapproachJohnSnowusedinthatstagetofillintheform.
Paragraph
Stagesinanexperiment
Examplesinthisinvestigation
1
Findaproblem
Whatcausedcholera?
2
Makeaquestion
Whichtheorywascorrect?
3
Thinkofamethod
Collectedthedataonthosewhofellillordiedandwheretheylived.
4
Collectresults
Plottedinformationonamaptofindoutwherepeoplediedordidnotdie.
5
Analyzetheresults
Foundoutwheretheygottheirwater.Analyzedthewatertoseeifitwasthecauseofthedeaths.
6
Findsupportingevidence
Foundotherevidencetosupporttheanalysis.
7
Drawaconclusion
Itwascertainthatpollutedwatercarriedthevirus.Thesourceofalldrinkingwatershouldbeexampledtomakesureitwassafe.
2.Beginaclassdiscussionwithstudentsbyaskingthemthefollowingquestions:
Whatbranchofscienceareyouusingtoillustratethestageofanexperiment?
Didthesestagesfityourbranchofscience?
Isthisanapproachusedinyourscienceclasswhenyoudoexperiments?
Whatdifferencesarethere(ifany)?
Doyouthinkthesedifferences(ifthereareany)areimportant?
Doyouthinkthisapproachwouldworkforallscientificsubjects?
Step6Consolidation
1.Askstudentstocompletethefollowingwithoutreferringtothetextbook,usingthewordsandphrasesfromthereadingpassage.
JohnSnowwasafamousdoctorinLondon.Therewasthemostdeadlydiseasecalled“KingCholera”ofitsday.Everytimetherewasa(n)outbreak,manypeopledied.JohnSnowwantedtofacethechallengeandsolvethisproblem.Heknewthatitwouldneverbecontrolleduntilitscaus
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