Unit4 Scientists Who Changed the World Extended Reading课件-2023-2024学年高中英语牛津译林版（2020）必修第三册

Extended reading —Reading comprehension Unit 4 Scientists who changed the world By the end of this period, you will be able to: 1.understand the main idea of each paragraph; 2.analyze the language and rhetorical devices used in this lecture transcript; 3.write a summary of this lecture transcript; 4.explain the value of science. CONTENTS Pre-reading I While-reading II Post-reading III Sentences analysis IV Does science always make good things for everybody? chemistry biochemistry information technology Science is a double-edged sword. Pre-reading Advantages Due to the advances in medical science, some deadly diseases can be cured by some life-saving medicine, such as qinghaosu, penicillin and so on. Military science is often misused in wars, which cause countless deaths and injuries. Disadvantages The production of hybrid rice can ease the hunger problem. The invention of the Internet can make our lives more convenient. Being smartphone addicts is harmful to our real lives. Industrialized society can damage the environment. Enjoy a video about the author—Richard Feynman Nobel Prize winner Member of the Manhattan Project Feynman diagrams Investigator of the Challenger disaster An art lover Richard Feynman Born: 11 May 1918, New York, USA Died: 15 February 1988 ? Now we’re going to understand the value of science in a scientist’s eyes. 1．What type of writing is the text? A．Narrative writing. B．Argumentative writing. C．Expository writing. D．Practical writing. 2．What’s the main idea of the passage? The main idea of the passage is ___________________. Activity 1　Fast-reading for basic information. While-reading √ the value of science 3. Skim the text and get the main idea of each part. Part 1(Paras.1－2)：___________________. Part 2(Paras.3－6)：___________________. Part 3(Para.7)： ___________________. Introducing the topic The value of science Duties of scientists 1．How did the author introduce the topic? A. By asking a