Unit6 Developing ideas 课件-2022-2023学年高中英语外研版（2019）选择性必修第三册

SB3U6 Silent Spring (Developing ideas) 1 Pre-reading DDT 2 Pre-reading Look at the infographic below and answer the questions. information+graphic (图表) Facts about DDT: DDT was first produced in 1874 and was later used as pesticide. It stays in the environment. It is highly poisonous to living organism, including humans. Now banned in many countries, it is still used in some for malaria(疟疾) control. is sprayed onto plants [məˈleərɪə] 3 How does DDT reach the human body in the food chain? is sprayed onto plants leaks through the soil and into rivers and lakes is absorbed by the plants is consumed by animals contaminates fish Pre-reading What harm does DDT cause? DDT is highly poisonous to living organism, including humans. a book that led to the banning of DDT Pre-reading 1874年，德国Zeidler合成了DDT。1936～1939年，瑞士化学家保罗·赫尔曼·穆勒（Paul Hermann Müller，1899～1965）发现了DDT的杀虫效能和使用价值，1943年传播国外，1944正式发表。 DDT是第一个重要的有机氯杀虫剂，在第二次世界大战后一段时间内，大量应用于农业和卫生保健，起过很大的作用，瑞士化学家保罗·赫尔曼·穆勒Müller因此获得1948年的诺贝尔医学奖。 For dozens of years, human beings have paid a heavy price for it : a large number of birds have died out ; Germ cells have been damaged ; Various chronic diseases have appeared… 几十年来，人类为此付出了沉重的代价：大量鸟类灭绝，生殖细胞受损，出现各种慢性疾病…… Pesticides were yesterday’s gospel, but today’s disaster. 农药是昨天的福音，今天的灾难 Rachel Carson, writer, scientist, and ecologist,  grew up simply in the rural river town of Springdale, Pennsylvania.  1941: Under the Sea-Wind  1951: The Sea Around Us 1955: The Edge of the Sea  1962: Silent Spring 10 While-reading Read the book review on Silent Spring. Predict what will be mentioned in the passage. Book Review: an article in a newspaper or magazine giving opinion on a book. 11 Book Review While-reading Read for structure Para. 2 Para. 3 Para. 4 Para. 5-6 Para. 6 Basic information the author, year of publication, theme, main idea, reason for publication Content of this book Influence of this book Comments on this book Features of the writing 12 While-reading Read