(
课件网) 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 question. B. By making a comparison. C. By giving an example. D. By quoting a famous saying. 2．What made the author change his attitude to science's value A．His common sense. B．His research on science. C．His knowledge about science. D．His experience during the war. Introduction(Paras.1－2) Introducing the topic Activity 2 Careful-reading for details √ √ 3. What’s the author’s attitude to science during the war A．Positive. B．Negative. C．Neutral. D．Indifferent. √ Before the war After the war Making good things Being useful and good Putting our future at risk Serious and destructive results The author’s internal confusion (Paras. 1-2) Angel Devil What is the value of science 1. Summarize 3 points of the value of science. Para.3:The first value: Para.4:Another value: Paras.5-6:The third value: Scientific knowledge enables us to do and make all things. It can provide the intellectual enjoyment. Scientists should have the freedom to doubt. Main body(Paras.3－6) The value of science 2. According to Feynman, ... ...
