综合英语教案.pdf
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1、备备课课纸纸任教课程任教课程年年月月日日Unit 5Unit 5一、授课时间:一、授课时间:第 9 周 3 次课;第 10 周 2 次课二授课类型:二授课类型:课文分析 8 课时;习题讲解 2 课时三授课题目:三授课题目:Silent SpringSilent Spring四授课时数四授课时数:10五教学目的和要求:五教学目的和要求:通过讲授课文使大学生了解有关环境保护的有关知识,学会用英语解释句子以达到学以致用的目的。要求学生主动地预习课文,课前准备练习,学会分析文章体裁和进行段落划分。六教学重点和难点:六教学重点和难点:1)背景知识的传授:About the author;2)文章的体裁分
2、析及段落划分;3)语言点的理解:Word study:to change;to exchange;beside;besides;except;used to;be used to;to shiver;totremble;to shake;to shudderGrammar Focus:Study and learn how the words such and so are used;Study such patterns asconsidering;given time;it is no accident that;it is not my contention that.七教学基本内容和纲
3、要七教学基本内容和纲要Part One WarmPart One Warm up up1.1 W1.1 Warm-up Questionsarm-up Questions1.What is the message given to us in the essay?What are Rachel Carson s main arguments?Have theystood the test of time?2.We are faced with all kinds of environmental problems nowadays.But what isthe one that RachelC
4、arson dealt with in her book Silent Spring?3.How do chemicals affect the environment and people?4.Does Carson mean that insecticides should never be used in agriculture?1.2 Define the following words and phrases1.2 Define the following words and phrases1.be geared to2.introduceinto3.a great variety
5、of4.hold sth within bounds5.built-in6.check7.a limit on8.set the stage for1备备课课纸纸任教课程任教课程年年月月日日9.explosive(increases)10.live on(wheat)11.a/another factor inisPart Two Background InformationPart Two Background Information2.1 Rachel Carson(1907-1964)biologist,writer2.1 Rachel Carson(1907-1964)biologis
6、t,writer,ecologist,ecologist1.intense love for nature since her childhood1.intense love for nature since her childhood“Humans have now acquired a fateful power to alter and to destroy nature.But Man is a part of nature,and his war against nature is inevitably a war against himself.”Rachel CarsonShe
7、was once bitterly attacked:“an anti-humanitarian crank,a priestess of nature,and a hysterical woman”But she courageously went on fighting until her idea caught on and more and more people joined in.the mother of modern environmental movementAbout the book:About the book:1.When was it published?2.Who
8、 was the author?3.What is it about?What is its central argument?4.How was it received?5.How significant is it now?6.Does it still make sense now?Part Three TPart Three T ext Appreciationext Appreciation3.1 Text Analysis3.1 Text Analysis1.Questions for thinking:Questions for thinking:a.What can you i
9、nfer about Carsons view of the relation between man and nature?b.Was her view common in her time?c.How do you arrive at this inference?3.1.2 S3.1.2 Structure of the texttructure of the textPart I:paras.1-6a town before&after the disasterPart II:paras.7-9cause of the disaster:chemicalsPart III:paras.
10、10-14character&impact of mans tampering with naturePart IV:paras.15-18reasons why pesticides fail to solve the pest problemPart V:paras.19-24cause of modern pest problem and possible solutions2备备课课纸纸任教课程任教课程年年月月日日Part VI:para.25conclusionLogic&TLogic&TechniqueechniqueWhat:from interest to concerndes
11、criptionHow:from general to specificexpositionfrom nature to manWhy:from effect to causeargumentationHow:from cause to solutionexposition&argumentationRelevant questions:Relevant questions:1.Why did Carson devote a whole paragraph to describe the spreading of species in nature before shementioned ma
12、ns role in the process?2 Did she always first describe the mechanisms in naturebefore talking about mans tampering withnature?3.Why did she present her ideas in this way?Whats her hidden argument?3.1.3 Detailed Analysis of the text3.1.3 Detailed Analysis of the textPart I:Main IdeaPart I:Main IdeaCo
13、ntrast:a town before&after the disasterContrast:a town before&after the disasterBeforeAfterColorColorSoundSoundMotionMotionOverall impression:Overall impression:vibrant,lifeless,harmonious,deserted,beautifulawfulPart II:DiscussionPart II:Discussion1.Why did the author paint such a beautiful picture
14、of a non-existent town?2.What was she trying to appeal to?Part III:DiscussionPart III:Discussion1.How has man changed the relation between organisms and their surroundings?HumanNatureDirection:Direction:life environmentenvironment lifeSpeed:Speed:Character:destructiveCharacter:adaptativeirrecoverabl
15、e2.In what way has mans power changed in character?(para.11)3.How do chemicals affect our life?(para.11)“passing from one to anotherin a chain of poisoning and death”3备备课课纸纸任教课程任教课程年年月月日日4.What are the two examples given by the author as mans tampering with nature?(paras.11-13)5.Why is mans change o
16、f the world particularly devastating?(paras.12-14)Part IV:DiscussionPart IV:Discussion1.Why are pesticides not a good solution?(3 reasons)They kill indiscriminately,reducing biodiversity.(para.16)They contaminate the entire environment.(para.16)residual effectThey couldnt solve the pest problem.(par
17、a.17)resistance to chemicalsresurgence induced by pesticides2.What does the“endless spiral”refer to?(para.17)3.What does the author mean by saying“all life is caught up in its violent crossfire”?(para.17)4.What is the authors attitude towards mans use of chemicals?How is it implied?Rhetorical questi
18、ons:“Can anyone believe it is?”(para.16)“How could intelligent beings?”(para.18)Part V:DiscussionPart V:Discussion1.What principles should we follow to solve the pest problem?(para.19)2.How did the pest problem come into being?intensification of agriculture(para.20)invasion of imported species(paras
19、.21-23)3.Does spreading of organisms to new places happen in nature?How does it happen?What is theprimary factor in this natural process?geological element,i.e.separating and rejoining of lands which took millions of years to complete(para.21)4.What are the sensible measures to solve the pest proble
20、m?(para.24)to avoid suppressing“pests”to get more knowledgeto promote an even balance5.In what ways have we done wrong in using chemicals?3.2 Writing Devices1.What is good writing?1.What is good writing?Her measured,carefully-worded(language)yet passionate prose(passion,love)was all the moredamning
21、because she,herself,was a scientist(ideas;information).2.How can we write with power and precision?2.How can we write with power and precision?2.1 Eloquence2.1 EloquenceParallelsParallels4备备课课纸纸任教课程任教课程年年月月日日until they emerge and combine into new forms that kill vegetation,sicken cattle,and work unk
22、nownharm on those who drink from once pure wells.(para.11)to still the song of birds and the leaping of fish,to coat the leaves with a deadly film,andto linger on in soil(para.16)Rhetorical questionsCan anyone believe?(para.16)How could intelligent beings?(para.18)Antitheses:Antitheses:(juxtapositio
23、n of contrasting ideas in one grammatical structure)(juxtaposition of contrasting ideas in one grammatical structure)The rapidity of change follows the impetuous pace of manrather than the deliberate pace ofnature.(para.13)this imagined tragedy may easily become a harsh reality we all shall know.(pa
24、ra.8)2.2 Precision2.2 PrecisionQualifying expressions:To a large extent,the physical form and the habits of theearths vegetation and its animal life have beenmolded by the environment.(para.10)This pollution isfor the most part irrecoverable.(para.11)And even this,were it by some miracle possible,wo
25、uld befutile.(para.14)Special verbs:n.v.:flame,coat,lineadj.v.:still,brown,damp3.3 Sentence Paraphrase3.3 Sentence Paraphrase1.There was once a town in the heart of America where all life seemed to live in harmony with it1.There was once a town in the heart of America where all life seemed to live i
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