Module 5Unit 1 Great Scientists教学设计07.docx
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Module5Unit1GreatScientists教学设计07
Module5Unit1GreatScientists
Reading:
JohnSnowDefeats“KingCholera”
Classtype:
reading
ClassDuration:
40minutes
1.Teachingcontentanalysis
ThereadingmaterialisfromPEPNSEFCModule5Unit1----GreatScientists.ThetopicofthisreadingpassageistheprocessofdefeatingcholerabyJohnSnow.Thepassagefollowsthestepsofscientificresearch:
findaproblem→makeaquestion→thinkofamethod→collectdata→analyzedata→findsupportingevidence→drawaconclusion.Thefirstparagraphfindsaproblem:
Whatisthecauseofcholera?
Thesecondparagraphraisesaquestion:
Doespeopleabsorbcholeraintotheirbodieswiththeirmeals?
Then,inthethirdparagraph,itdescribesthemethodofcollectingdataonthosewhofellillordiedandwheretheylived,andtheprocessofcollectingdata.ThefourthparagraphtalksaboutthatJohnSnowputinformationonamaptofindoutwherepeoplediedordidnotdie.Inthepara.5,hefoundoutwheretheygotwaterandanalyzedthewatertoseeifitisthecauseofthedeaths.Inthenextparagraph,JohnSnowfoundotherevidencetosupporttheanalysis.Finally,hedrewaconclusionthatitwascertainthatpollutedwatercarriedthevirus.Fromthispassage,studentscangetfamiliarwithhowtoorganizescientificresearch.Moreover,inrecentyears,thiskindofinfectiousdiseases,suchasH7N9andZIKA,happensquiteoften,whichhasraisedalotofconcerns.Thepassagealsohaspracticalsignificancetostudents.
2.Learneranalysis
Ashighschoolstudents,thestudentshavelittlepreviousknowledgeaboutcholerabecauseithappensmuchlessthanbeforeandwasfarfromtheirdailylife.Inordertomakethelessonmorefluent,thebackgroundinformationshouldbepresented.Thestudentsinmyclassarenotactivesothatinterestingactivitiesshouldbedesignedtomotivatethem.
3.Teachingkeyanddifficultpoints
Keypoints:
①somekeywordsandphrases:
expert,attend,suggest,absorb,suspect,defeat,expose,link
neither…nor…,betoblame,bedeterminedtodo,lookinto,etc.
②graspthestructureofthetextandunderstandthecontent.
③trainreadingskills:
predicting,skimming,scanning.
Difficultpoints:
①makeclearaboutthecorrectstagesaboutscientificresearch.
②developstudents’independent-studyabilitywiththehelpofreadingskills.
4.Teachingobjectives
a.Languageknowledgeandskills
Bytheendofthislesson,studentswillbeableto
①mastersomekeywordsandphrases:
expert,attend,suggest,absorb,suspect,defeat,expose,link,neither…nor…,betoblame,bedeterminedtodo,lookinto,etc.
②predictthemainideaofthereadingpassageaccordingtothetitle.
③graspthestructureofthetextbyskimming.
④findoutsomespecificinformationaboutthepassagebyscanning.
b.Learningprocessandmethods
Bytheendofthislesson,studentswillbeableto
⑤learnautonomouslyandcooperativelyindifferentactivitiesbefore,duringandafterreading.
⑥communicateactivelywiththeirpartnersinmakingclearaboutthecorrectstagesaboutscientificresearch.
c.Emotionsandvalues
Bytheendofthislesson,studentswillbeableto
⑦makeclearaboutthecorrectstagesaboutscientificresearch.
⑧understandandbegratefultothecontributionsmadebygreatscientists.
5.Teachingmethodsandaids
Teachingmethods:
Three-stagemodule;Task-basedLanguageTeaching;
ActiveExplorationMethod
Teachingaid:
PPT
6.Teachingprocess
Stage1Pre-reading（6minutes）
Activity1（1minute）
Demonstrate:
ØPicturesofZIKA.What’swrongwiththem?
ØWhatwillhappentothepersonifdangerousgermsorvirusesattackedhim?
（Showthenounphrase:
infectiousdiseases）
Activity2（1minute）
Brainstorming:
ØDoyouknowanyinfectiousdiseasesinthe21stcentury?
（Showsomepicturesofthesediseases:
SARS;H7N9;EBOLA;ZIKA.）
Activity3（2minutes）
Scanning：
ØAninfectiousdiseaseinthe19thcentury?
（Introduce“Cholera”and“KingCholera”.）
ØWhoisJohnSnow?
[Justifications:
theseactivitiesaredesignedtoraisestudents’interestwhentheylistsomeinfectiousdiseasesandleadinthetopicofCholeraandJohnSnow.]
T:
Goodmorning,class.Duringthebreak-time,wehavewatchedapieceofnewsaboutZIKAvirus.（黑板：
virus;itisbadforourhealth）
Doyounoticethesebabiesinthenews?
What’swrongwiththem?
（呈现两张baby的图片，请学生回答）
Lookattheirheads.Theylookquiteunusual,right?
BecausetheyareinfectedbyZIKAvirus.
（黑板：
beinfectedby;）
Thisvirushascausedthe29deaths.Ifsuchvirusesordangerousgermsattackandspreadamongpeople,orwecansaythousandsofpeopleareexposedtothem,wecallthiskindofdiseaseinfectiousdiseases.
（黑板：
beexposedto）
Doyouknowanyotherinfectiousdiseaseinthe21stcentury?
Youcandiscusswithyourpartner.
（学生讨论回答）
Anyvolunteers?
Putyourhandsup.
（学生举出例子后，追问Whendiditbreakout?
Whichcountrywashitseriously?
）
（ppt顺序：
SARSH7N9EBOLAZIKA）
Theseinfectiousdiseasesbrokeoutinthe21stcentury,right?
Anddoyouknowinthe19thcenturyaninfectiousdiseasecausedsomanythousandsofdeaths?
（学生如果回答不出，pleasereadthetitleofpassageonpage2）
Yes,itwascholera.Choleraisoneofinfectiousdiseases.Itcanbemildorevenwithoutsymptoms（征兆）,butaseverecasecanleadtodeathwithoutimmediatetreatment（治疗）.
（黑板：
severe；itmeansextremelybad.）
Butwhydidthetitlecallit“KingCholera”?
Canyoufindthereasoninthepara.1?
（1.Thiswasthedeadlydiseaseofitsday.）
（2.Neitheritscausenoritscurewasunderstood.）
（3.Somanythousandsofterrifiedpeoplediedeverytimetherewasanoutbreak.）
AlthoughitisKingCholera,itwasstilldefeatedbyagreatperson.Whoishe?
（JohnSnow）
DoyouknowanythingaboutJohnSnow?
（学生：
afamousdoctorinLondon;anexpert;QueenVictoria’spersonalphysician）
（黑板：
expert;itcananoun:
apersonofspecialskilloranadjective,skillful.）
HereissomeotherinformationaboutJohnSnow.Wecanseethathehadashortlife,buthemadegreatachievement.JohnSnowisoneofthefathersofepidemiology（流行病学）,becauseofhisworkinfindingthecauseofacholeraoutbreakinEngland,in1854.
Nowlet’slearnhowJohnSnowdefeats“KingCholera”.
Activity4（1minute）
Predictthemainideaofthetextaccordingtothetitle.
ØWhat’sthemainideaofthepassage?
A.JohnSnowwasawell-knowndoctorinLondon.
B.ThecauseofCholerawaspollutedwater.
C.Thesourceofalldrinkingwatershouldbeexamined.
D.HowdidJohnSnowcollect,analyzedataandfindthecauseofthediseaseandsolvedit.
（Answer:
D）
Activity5（1minute）
Putintocorrectorder.
Findaproblem→makeaquestion→thinkofamethod→collectdata→analyzedata→findsupportingevidence→drawaconclusion
[Justifications:
theseactivitiesaredesignedtotrainstudents’predictingskillandtolaythefoundationforthereadinghabit.]
T:
Firstofall,let’sreadthetitleagain.
Fromthetitle,canyouchoosethemainideaofthispassage?
（学生阅读四个选项做出选择。
）
Whichoneisthemainideaofthispassage?
（邀请学生回答）
Great!
ThemainideaofthispassageisabouthowJohnSnowcollected,analyzeddataandfoundcauseofthediseaseandsolvedit.
JohnSnowwantedtosavethosepeoplewhoareexposedtocholera.Sohebegantodoascientificresearch.Weallknowthatwhenwedoaresearch,therearesomestagestofollow.Generallyspeaking,therearesevenstagesofthescientificresearch.Canyouputthemintoarightorder?
（学生回答；若没有正确答案，则跳过，之后处理。
如果学生答出，在黑板上写下7步骤）
（黑板：
problem;question;method;collecting;analysis;evidence;conclusion）
Stage2While-reading（27minutes）
Activity6（minutes）
Para.1
Q:
ØWhatisthefirstthingtodoifJohnSnowwantstocontrolcholera?
A:
Thefirstthingtodoistofindthecauseofcholera.
（Stage1）
Activity7（minutes）
ReadPara.2,andfindtwotheories.Fillintheblanks.
Twotheories:
1.Choleramultipliedintheair.Acloudofdangerousgasuntilitfounditsvictims.
2.Peopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.
（Stage2）
Activity8（minutes）
Para.3
Q:
ØHowtoprove（证明）the2ndtheoryiscorrect?
A:
Bymakinganenquiry.
ØWheredidhecollectdataorgatherinformation?
Inthepoorneighborhood.
Activity9（minutes）
Para.4&5:
Completethechart.
Q:
ØDidJohnSnowforeseetheresults?
ØWhatdidhediscover?
ØWhywasthewaterinthepumptoblame?
Canyouuseyourownwords?
Activity10（minutes）
Para.6
CanyouhelpJohnSnowtocompletethisdeathrecord?
Q:
ØButdoyounoticethelastsentenceinpara.6?
Whatdoesittalkabout?
Activity11（minutes）
Para.7
Q:
ØWhatdidJohnSnowsuggest?
[Justifications:
theseactivitiesaredesignedtotraintheskillofclose-reading.StudentscanunderstandthewholeprocessofJohnSnow’sscientificresearchstepbystep.]
T:
Sointhisresearch,whatisthefirstthingtodoifJohnSnowwantstocontrolcholera?
（学生若回答不出，提示：
readthelastsentenceofthefirstparagraph.）
Thefirstthingtodoistofindthecauseofcholera.Here,wehavefoundtheproblemofthisresearch:
Whatisthecauseofcholera?
ThisistheStage1:
Findaproblem.
（黑板：
在problem旁写Para.1）
Johnbegantoguessthereason.Thentwotheoriesattractedhim.Whatarethey?
（给学生阅读第二段的时间，邀请学生完成填空）
（Choleramultipliedintheair.Acloudofdangerousgasuntilitfounditsvictims.）
“Multiplied”heremeans“greatlyincreased”.“Victims”means“someonewasattackedbycholera”.
（Peopleabsorbedthisdiseaseintotheirbodieswiththemeals.）
“Absorb...into…”means“take…in…”
WhichtheorydoesJohnSnowwanttoprove?
（Ss:
secondone）
Howdoyouknowthat?
（JohnSnowsuspectedthatthesecondtheorywascorrect.）
Great!
SohereJohnSnowmadeaqu
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