外研版 (2019)必修 第三册Unit 3 The world of science教学演示ppt课件

这是一份外研版 (2019)必修 第三册Unit 3 The world of science教学演示ppt课件，共29页。PPT课件主要包含了内容分析，Listening等内容，欢迎下载使用。
本文从另一角度反映了单元主题“科学发展和科学精神”，语篇类型为论说文，作者在文中质疑了富兰克林著名闪电实验的真实性，教导我们应该保持对科学事实的质疑和追求。希望同学们通过阅读和完成活动了解科学精神的内涵，培养批判性思维。
Unit 3 Franklin’s Experiment: Hw Much Is True?
Teaching Prcedures
Read the shrt intrductin t Benjamin Franklin.
Pre-reading
Benjamin Franklin(1706-1790)was ne f the Funding Fathers f the United States and helped draft the Declaratin f Independence. Apart frm being a successful statesman, he was als well knwn as a leading American authr, printer and publisher, successful diplmat, creative scientist and inventr.
Franklin’s Experiment: Hw Much Is True?
1. What is the functin f the questin mark(问号）? The authr is nt sure abut the answer.2. What is the type f the passage? Argumentative essay. （论说文）3. Lk thrugh Learning t Learn part and predict what the essay fcuses n. Hw much is true abut Franklin's experiment.
a discussing pint (论点)evidence (论据)clear lgic (逻辑)
What’s the authr’s attitude twards the stry f Franklin’s experiment?
A. Dubtful. B. Curius.C. Objective.(客观的） D. Nt mentined.
A. Dubtful. B. Curius.C. Objective.(客观的） D. Nt mentined.
Fast-reading
2. Read the text again and match the main ideas with the paragraph(s).1．Paragraphs 1　 A．The effect f the experiment.2．Paragraphs 2 B. The intrductin t Franklin’s famus experiment. 3．Paragraphs 3 C．Are the stries f Franklin’s and Newtn’s true?4．Paragraphs 4－6 D．Hw the experiment is carried ut.
pay attentin t the first and the last sentence.
Franklin’s famus experiment
Hw the experiment is carried ut
The effect f the experiment
Are the stries f Franklin’s and Newtn’s true?
New research suggests that the stry may be fictin instead f fact. (句尾）
The well-knwn stry is that the American Funding father and scientist flew a kite during a strm in 1752.(句首）This, he said, prved that lightning was a frm f electricity.（ 句尾）
Fr many years, schls have taught the stry f Franklin’s lightning experiment. (句首）
Admittedly, fictin is ften mre interesting than the truth. （末段首句）But in science, facts shuld be prved by experiments and research… （末段尾句）
Careful-reading
Paragraph 1 (Franklin’s famus experiment)
the experiment with sth 用…所做的实验
intrduce sb t…使之了解认识
that 引导的表语从句, “that”无实意但起到连接作用，不可省略。
“with＋宾语＋宾补”的复合结构做后置定语修饰 kite。
Paragraph 2 (Franklin’s famus experiment)
Paragraphs 1-2 (Franklin’s famus experiment)
What did Franklin’s famus experiment aim t prve?A. It is dangerus t fly a kite during a strm.B. Peple were interested in electricity.C. Franklin was a great scientist.D. Lightning was related t electricity.
Paragraph 3 (The effect f the experiment)
“mre than ne＋单数可数名词”作主语时，尽管意义上是复数，但谓语动词仍用单数形式，符合语法一致原则。
=be amazed at “惊叹于…”
an apprach t sth/ding sth做某事的方法
alng with, tgether with, with, as well as, etc. 引导出的成分不作为主语的一部分，谓语形式看前者，即就远原则。
Paragraph 3 (The effect f the experiment)
.What des the third paragraph mainly tell us?
A. Schls shuld carry ut mre experiments.B. Franklin’s lightning experiment influences students much.C. It is imprtant t find truth.D. Just ne generatin f students were curius abut Franklin.
Paragraphs 4-6 (Are the stries f Franklin’s and Newtn’s true?)
“既不…也不…”,若作主语，其谓语形式用就近原则。
“mre than ne＋单数可数名词”作主语时，谓语动词用单数形式，符合语法一致原则。
if 引导的非真实条件句；与过去事实相反的虚拟语气。
If yu had cme earlier, yu wuld have seen the writer.
In fact, the persn didn’t cme earlier and he didn’t see the writer.
=put/bring frward 提出
“尽管”引导让步状语从句
hit sb n the head 击中某人头部
. What is the purpse f the stry f Newtn?
T shw the accepted stry is true.T shw Newtn brave t bear the hit f an apple.T shw Newtn was lucky t find the thery f gravity.T shw the accepted stry is questined by the scientists.
省略引导词的定语从句，修饰先行词everything。
比较级：“比起…更受…启发”
Overview f the passage
本语篇为论说文，作者在文中质疑了富兰克林著名闪电实验的真实性，教导我们应该保持对科学事实的质疑和追求。文章前半部分（Paragraphs1-3）引出富兰克林著名闪电实验原理及其故事的教育影响力；后半部分（Paragraphs 4-6）从科学家角度进行议论，引导我们在日常生活中要透过伟大故事的戏剧性而去求证科学的真实性。全文标题思想明确，段落布局清晰，段首或段尾主题句鲜明，段中论据充实，具有较强的论说文特征, 对于我们的阅读及写作等具有参考价值。
3. Number the statements t shw hw peple’s attitudes twards Franklin’s experiment have changed. （A3，P34）
Franklin’s spirit f scientific explratin is still cnsidered an inspiratin.Peple are amazed at and inspired by Franklin’s experiment.Scientists questin what really happened in Franklin’s experiment.
Pst-reading
What qualities d yu think a great scientist shuld have? （P34)
As a great scientist, he r she shuld have mre than ne gd quality, such as being smart, hnest, bjective ( 客观的 ),persistent ( 坚持不懈的 ), curius, imaginative, devted and s n.
Suggested answer:
复习课文知识点；Write an essay abut yur understanding f the saying“Seeing is believing （眼见为实）”. （ 80 wrds)