(
课件网) Developing ideas — Reading Unit 6 Nature in words 1.To learn have a general knowledge of DDT contamination. 2.To raise the awareness of environmental protection. 3.To learn and use some key words and expressions. Learning objectives 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 control. Look at the infographic below and answer the questions. Facts about DDT: Pre-reading How does DDT reach the human body in the food chain When DDT is sprayed onto plants in order to kill insects, it is absorbed by plants and subsequently consumed by animals; humans in turn eat those animals. DDT also leaks through the soil and into rivers and lakes, where it contaminates fish consumed by humans. 2. What harm does DDT cause DDT is highly poisonous to living organism, including humans. It is hard to break down and stays in the environment for a long time. Silent Spring is a popular science book by the American science writer Rachel Carson, first published in 1962. The book is about the harm of pesticides to the environment. It describes a world without birds, bees or butterflies. It is this unusual book that has raised the awareness of protecting the wildlife and environment around the world. 杀虫剂 Rachel Carson (1907-1964) was a pioneer of the world’s environmental movement through her writing about the protection of the natural world. Her 1962 book Silent Spring made her well known by many people. It describes the harmful changes in the environment of using toxic chemicals on farmland. 有毒的 Read the book review on Silent Spring, a book that led to the banning of DDT. Predict what will be mentioned in the passage. It is a book review on Silent Spring, so the following parts may be mentioned in the passage: 1) basic information about the book, including the author, year of publication, theme and main idea; 2) the reason why this book is published; 3) features of the writing; 4) comments on this book; 5) influence of this book. Fast reading Read the passage and check your prediction. basic information about the book, including the author, year of publication, theme and main idea; 2) the reason why this book is published; 3) features of the writing; 4) comments on this book; 5) influence of this book. All the information is included. Organise information from the passage and complete the notes about Silent Spring. Intensive reading Silent Spring Author: Rachel Carson Year of publication: 1._____ Purposes: ● Carson aimed to alert people to 2._____ on natural ecosystems. 1962 the damaging effects of human activity ● She wished to see pesticides used in a _____ 3._____way. Features of the book: ● Carson wrote a lot of 4._____ _____ in the book. ● The arguments are strong and the language is 5._____ . scientific information, exa ... ...
