unit 1 全单元教案.docx

unit 1 全单元教案.docx

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unit1全单元教案

Unit1GreatScientists

教材分析

Ⅰ教学内容分析

人类文明发展的进程同时也是科学技术发展的过程，而这一过程渗透了许多优秀科学家的心血。

本单元主要话题是“科学家如何以探索、钻研、无畏的科研精神验证未知的科学真理”。

热身（Warmingup）部分通过问答使学生回想起不同领域的科学家，了解科学家们对人类的贡献及其成果。

读前（Pre-reading）通过若干问题及讨论，使学生初步了解得出科学观点所需的过程。

为完成阅读奠定基础。

阅读（Reading）部分介绍英国著名医生JohnSnow是如何通过考察、分析、探究的科学方法，发现并控制“霍乱”这种传染病的。

通过阅读课文，使学生感悟科学家的周密观察、勇于探索、认真分析的科学精神，使学生了解科学发现的全过程具有其科学的严密性。

理解（Comprehending）部分的练习一让学生给文章的主要信息排序已达到对文章的初步理解。

练习二通过提问挖掘文章细节，使学生重温文章内容。

练习三让学生写出文章的大意，进一步掌握文章内容。

练习四让学生选择段落朗读，以流利的朗读表达文中的意思。

语言学习（Learningaboutlanguage）部分主要突出单元的重点词汇和主要语法项目的训练与练习，使学生对本课重点词汇与语法项目做到学以致用。

语言运用（Usinglanguage）部分涵盖了听说和读两个部分。

听的部分通过两个学生谈论科学家钱学森的故事，使学生了解科学家的生活经历，并通过回答问题训练学生的分析、解决问题能力。

说的部分通过学生分组讨论将来选择什么科学工作，需要什么样的教育、品格及经历来完成提问和应答的交际功能任务训练，也实施了对学生的德育教育。

读的部分讲述了哥白尼是如何发现太阳中心说的，并通过1、2小题帮助学生理解文章主旨大意，学会寻求解决问题方法，同时提高阐明自己观点的能力。

写的部分是要求学生根据阅读文章内容及提示给哥白尼写一封信，建议他尽早公布他的发现，以此来培养学生的收集信息、整理信息及传递信息的能力，体现了自做、自助和自悟的教学思想，改进学生的学习策略。

小结（Summingup）部分通过让学生回忆本单元所学内容，总结对其掌握的程度，培养学生概括总结能力。

学习建议（Learningtip）部分建议学生如何写好“Persuasivewriting”，以培养学生的逻辑思维及写作能力。

趣味阅读（ReadingforFun）部分引用了一些科学领域中名人的名言，如爱因斯坦、爱迪生、牛顿等，旨在从另一个侧面让学生了解科学研究的方法和科学研究的真谛。

Ⅱ教学重点和难点

1.教学重点

⑴本单元的生词和短语；

⑵过去分词作定语、表语；

（3）学习描述人物的句型；

（4）了解著名医生JohnSnow、哥白尼等科学家以及他们的作为和故事。

2.教学难点

⑴过去分词作定语、表语；

⑵学习表示意愿、希望或建议的句型；

⑶学写persuasivewriting.

Ⅲ教学计划

本单元分五课时：

第一、二课时：

WarmingUp,Pre-reading,Reading&Comprehending

第三课时：

LearningaboutLanguage

第四课时：

Listeningandspeaking

第五课时：

Readingandwriting

Ⅳ.教学步骤:

Period1&2WarmingUp,Pre-reading,Reading&Comprehending

TeachingGoals:

1.TolearnaboutJohnSnow.

2.Todevelopsomebasicreadingskills.

3.ToarouseSs’interestinlearningaboutthespritsofscientists.

TeachingProcedures:

Step1.WarmingUp

Purpose:

ToarouseSs’interestinlearningaboutscientists.

ToaskSstopreparesomethingforthegreatscientistsaheadoftimeandsharethemwithothers.

1.Pairwork

AskSstotelltheirpartnerstheiranswerstothefollowingquestionandshowsometothewholeclass.

Whatdoyouknowaboutgreatscientists?

2.Groupwork

Ssaredividedinto3groupstodothequizandtrytofindoutwhichknowsthemost.

QuizQuestions

Answer

（1）Whichscientistdiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?

（2）Whowroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged?

（3）Whoinventedthefirststeamengine?

（4）Whousedpeastoshowhowphysicalcharacteristicsarepassedformparentstotheirchildren?

（5）Whodiscoveredradium?

（6）Whoinventedthewayofgivingelectricitytoeverybodyinlargecities?

（7）Whowasthepainterthatstudieddeadbodiestoimprovehispaintingofpeople?

（8）Whoinventedalamptokeepminerssafeunderground?

（9）Whoinventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened?

（10）Whoputforwardatheoryaboutblackholes?

Suggestedanswers:

（1）Archimedes

（2）CharlesDarwin（3）ThomasNewcomen（4）GregorMendel（5）MarieCurie（6）ThomasEdison（7）LeonardodaVinci

（8）SirHumphryDavy（9）ZhangHeng（10）StephenHawking

Step2.Pre-reading

Purpose:

TogetSstolearnaboutthestagesinascientificexperiment

1.Groupwork

（1）GetSsintogroupsoffouranddiscusswhatkindofexperimenttheyhaveexperiencedandthestagesofthem.Asksomegroupstoshowtheirviews.

（2）AskSstoputthefollowingstagesintoproperorder.

DrawaconclusionThinkofamethodCollectresultsMakeupaquestion

FindaproblemAnalyzetheresultsRepeatifnecessary

SuggestedAnswers:

Findaproblem→Makeupaquestion→Thinkofamethod→Collectresults→Analyzeresults→Repeatifnecessary→Makeaconclusion

2.Pairwork

AskSswhethertheyknowaboutinfectiousdiseasesandtelltheanswerstotheirpartners.

Forexample:

flu

Birdflu

SARS

Step3.Reading

1.Skimming

Purpose:

TogetSstohaveabriefunderstandingofthewholetext.

Thepassageiswritteninorderofthestagesinanexperiment,soaskSstoscanthetextandfindthedifferentstages.

Suggestedanswers:

①Findaproblem:

JohnSnowwasawell-knowndoctorinLondon…untilitscausewasfound.

②Makeupaquestion:

Hegotinterestedinthetwotheories…andsoontheaffectedpersonwasdead.

③Thinkofamethod:

Hebelievedinthesecondtheorybut……soseverethatmorethan500peoplehaddiedin10days.

④Collectresults:

Hedeterminedtofindoutwhy…Itseemedthewaterwastoblame.

⑤Analyzeresults:

Next,JohnSnowlookedintothesourceofthewaterforthesetwostreets…thatcholerawasspreadbygermsandnotinacloudofgas.

⑥Repeatifnecessary

Soonthediseasebegantoslowdown…thatpollutedwatercarriedthedisease.

⑦Makeaconclusion:

Topreventthisfromhappeningagain,…nottoexposepeopletopolluted.

2.Scanning

Purpose:

TogetSstohavesomedetailsinthetext.

（1）Readthetextquicklyandtrytogetsomedetailsfromthetext.Workinpairsandtrytoaskandanswerquestionsfromthetext.Questionscanbelikethese:

Q1.WhowasJohnSnow?

Q2.WhatdidJohnSnowdowhentheseriouscholerabrokeout?

Q3.Whatwerethetwotheoriesthen?

Q4.WhatwasJohnSnow’sattitudetowardsthetwotheories?

Q5.HowdidJohnSnowfindtheevidenceforhistheory?

Q6.Howdidhesolvetheproblemfinally?

Suggestedanswers:

A1.JohnSnowwasawell-knowndoctorinLondon-sofamous,indeed,thatheattendedQueenVictoriatoeasethebirthofherbabies.

A2.JohnSnowwantedtousehisknowledgetohelpsolvethisproblem.

A3.Thefirstsuggestedthatcholeramultipliedintheairwithoutreason.Acloudofdangerousgaswouldfloatarounduntilitfounditsvictims.Thesecondsuggestedthatpeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.Fromthestomachthediseaseattackedthebodyquicklyandsoontheaffectedpersonwasdead.

A4.Hebelievedinthesecondtheorybutneededtoprovehewascorrect.

A5.Hegatheredtheinformationandmarkedamapwhereallthedeadpeoplehadlived.Andatlasthefoundthatallthedeadpeopledrankthepollutedwaterfromtheriver.

A6.Topreventthisfromhappeningagain,JohnSnowsuggestedthatthesourceofallwatersuppliesbeexaminedandmewmethodsofdealingwithpollutedwaterbefound.Andfinally“KingCholera”wasdefeated.

（2）Sincewehavegottheorderofthesevenstages,getSstowritedowntheevidenceorapproachJohnSnowusedineachstage.Forexample:

Paragraph

Stagesinanexperiment

①

Findaproblem

②

Makeupaquestion

③

Thinkofamethod

④

Collectresults

⑤

Analyzeresults

⑥

Repeatifnecessary

⑦

Makeaconclusion

Suggestedanswers:

Paragraph

Stagesinanexperiment

Exampleinthisinvestigation

①

Findaproblem

Whatcausescholera?

②

Makeupaquestion

Whichtheoryiscorrect?

③

Thinkofamethod

Collectdataonthosewhowereillordiedandwheretheygottheirwater.

④

Collectresults

Plotinformationonamaptofindoutwherepeoplediedordidnotdie.

⑤

Analyzeresults

Analyzethewatertoseeifthatisthecauseoftheillness.

⑥

Repeatifnecessary

Findotherevidencetoconfirmyourconclusion.

⑦

Makeaconclusion

Thewateristoblame.Thesourceofalldrinkingwatershouldbeexaminedsothatitissafe.

3.Listening.

Purpose:

TotrainSs’listeningability.

Listentothetapeandfollowitinalowvoice.

4.Languagepoints.

Purpose:

TotrainSs’languagecapacity.

（1）attendvt&vi

出席；参加

Hedecidedtoattendthemeetinghimself.

照顾；看护

Whichdoctorisattendingto（on）you?

伴随

Theworkwasattendedwithmuchdifficulty.

（2）absorbvt.

吸收

Aspongeabsorbswater.

使专心

Thelittlegirlwasabsorbedinreadingatale.

（3）severeadj.

严厉的；严格的

Ithinkyouaretoosevereontheboy.

剧烈的

Hehasaseverepaininhisleg.

（4）announcevt

发表、告知、宣布

Thegovernmentannounceditsneweconomicpolicies.

宣布

HisservantannouncedMrandMrsWhite.

显示；预告

Warmsunshineannouncesthecomingofspring.

Step4.Post-reading

Purpose:

Tohaveadeepunderstandingofthetext.

Groupwork

LetSsTalkaboutthefollowingquestions.Andpresenttheiropinionstothewholeclass.

1.WhatdoyouthinkofJohnSnow?

2.Doyouthinkhimgreatenough?

3.Ifyouwerehe,whatwouldyoudo?

Step5.Discussion

ThetextintroducespublichealthmedicinetoSs,whichislesswell-knownareaofmedicine.WiththearrivalofSARSinChinain2003,wedohavesomeknowledgeoftheeffectofinfectiousdiseasesonourlifeandlifestyle.

Discusswithyourpartnersingroupsofsixandtellusyourviews.

Step6.Homework

Trytowriteashortcompositionaboutafamiliarscientist.

Period3Listeningandspeaking（UsingLanguage）

TeachingGoals:

1.Tousethelanguagepointsandgrammarofthisunit.

2.TodevelopSs’listeningandspeakingabilities.

TeachingProcedures:

Step1.Leading-in

Purpose:

ToactivateSsandarousethemtotalkaboutscientificsubjects.

ShowthepicturesaboutthescientistsandaskSswhethertheyknowthem.AndmakesuretheyknowsomefamousscientistsinChina.

Step2.WarmingUp

Purpose:

ToleadSstothetopicofthisunit.

1.Groupwork

TheabovepicturesareallChinesefamousscientists.LetSstalkaboutthestoriesofthem.AndtheycanalsotalkaboutotherscientistsinChina.GetsomeSstopresenttheirstoriestotherestofclass.

2.Conclusion

AllofthemhavemadecontributionstothedevelopmentofChinesescienceandtechnology.ButdoyouknowwhothefatheroftheChinesespaceprogramis?

（QianXuesen）

Step3.Pre-listening

Purpose:

TohelpSslearnaboutthecontextoftheListeningpart.

1.Pairwork

AskSstodiscussthepictureswiththeirpartners.

2.Discussion

Discussthefollowingthreequestionsandpresen