译林版高中英语必修三Uint4 Extended reading 教案(名校).docx
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1、Unit 4 Scientists who changed the worldExtended ReadingThe Value of Science内容分析:本板块的文章改编自一篇著名科学家的公开演讲,语篇的主题是科学的价值。 作者通过自问自答,条理清楚、由浅入深地从三个层面回答了“科学价值何在” 这一问题。阐明了科学家的责任所在,也鼓励了同学们争做社会栋梁。教学目标:By the end of this section, students will be able to:1. understand the main idea of each paragraph;analyze the la
2、nguage and rhetorical devices used in the lecture;2. explain the value of science.教学重难点:1. To help students understand the structure of the whole passage;To help students analyze the language in a speech;2. To guide students to explain the value of science.教学过程:Step 1 Lead-in Do you think science is
3、 good or evil? What do you think are the value of science?Step 2 Figure out the structure of this lecture transcriptIntroduction: paras. 1-2: Introducing the topicMain body: paras. 3-6: Three values of scienceConclusion: para. 7: Duty of scientistsf Lets see the details.Main body: paras. 3-6Para.3:
4、Scientific knowledge enables us to do and make all kinds of things.Para.4: Science can provide us with intellectual enjoyment.Para.5-6: Scientists have the freedom to doubt.Step 3 Careful readingRead paras. 1 -2 and answer the questions.1. The author talked about his personal experience in paragraph
5、 1 and 2. Please summarize his experience.When he was younger, he thought science would make good things for everybody.During the war he doubted that some evil may be involved in science. Later hethought long about the value of science and finally tried to answer this in this talk.2. What are the fu
6、nctions of these two paragraphs?To introduce the topic and arouse audiences interest.Read para. 3 and answer the questions.1. How many times is the pronoun “it used in this paragraph. What does “it” refer to in each case?5 times. The first two (line 12) refbr to “making good things- and the final th
7、ree (line 14 and 16) refbr to scientific knowledge”.2. How do you understand the sentence scientific knowledge enables us to do and make all kinds of things.”?The essence of science is all kinds of knowledge, with which we can do all kinds of things, including good and bad. Science itself is not goo
8、d or bad. Instead, what we choose to do with it can be good or bad. Just as Feynman said, Scientific knowledge is an enabling power to do either good or badbut it does not carry instructions on how to apply it.Read para. 4 and answer the question.Fey man said, “Thanks to the scientific effort, we ha
9、ve been led to imagine all sorts of things more fantastic than poets and dreamers of the past ever could. Can you give some examples of those fantastic imagined things“ that have become reality because of science?enjoy a video.Read para. 7 and answer the question.1. What are the duties of scientists
10、? To declare the value of thu freedom to doubt. To teach how doubt is not to be feared but to be welcomed and discussed. To demand this freedom to all coming generations.Step 4 Rhetorical deviceWhat analogy is used here and whafs the function?“Never concerned that the answer may let us down, with pl
11、easure and confidence we turn over each new stone to find unimagined strangeness leading on to more wonderful uestions and mysteries.It is an analogy. Here Feyman compares the intellectual enjoyment of finding unimagined strangeness to the process of discovering what is hidden under a stone-just as
12、underneath stones there could be an unknown treasure, Feyman uses this analogy to emphasize the curiosity and deteimination that scientists use to uncover mysteries and answer questions.1. Feyman used parallelism several times in his lecture. Please find them out and figure out their functions. When
13、 a scientist doesnt know the answer to a problem, he is ignorant. When hv has an idea as to what the result is, he is uncertain. And when he is pretty sure of what the result is going to be, h。is still in some doubt, (line 27) Permit us to questionto doubtto not be sure, (line 35) It is our responsi
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