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(共18張PPT)
外研版選擇性必修第三冊
Unit 6 Nature in words
Developing ideas Silent Spring
Silent Spring
Learning objectives
To find out the message conveyed in Silent Spring and the influence of the book;
To figure out the basic structure of a book review;
To think about human activities’ negative influence on nature and what can we do to live in harmony with nature;
To draw a mind map based on the information from the passage and retell the passage based on the mind map.
Look at the infographic below and answer the questions.
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 control.
Activity 1 lead-in
Learn something about the author Rachel Carson.
Rachel Carson, writer, scientist, and ecologist, grew up simply in the rural river town of Springdale, Pennsylvania.
Rachel Carson wrote only four books, but each of them in some measure changed the way we thought about ourselves and our world.
1941: Under the Sea-Wind
1951: The Sea Around Us
1955: The Edge of the Sea
1962: Silent Spring
1. What’s the genre of the passage
a book review
2. How does the passage developed
the structure of a book review
Activity 2 Skimming
Activity 3 Scanning
Organize information from the passage and complete the notes about Silent Spring.
Silent Spring Author Rachel Carson
Year of publication _____________________________________
Purpose Carson aimed to alert people to ________________________ on natural ecosystems.
She wishes to see pesticides use in a ________________ way.
Features of the book Carson wrote a lot of _______________________ in the book, such as ______________________, _______________.
The arguments are strong and language is _______________.
Opposing voices Critics said that _____________________________ because she _________________________.
Some also said that__________________________________.
Influence of the book __________________ was banned and the EPA was established in the US.
Carson earned a posthumous ________________________.
The book changed the world by increasing people’s ________
_________________________.
The author’s comment Carson made a crucial but potentially difficult-to-understand subject___________________________.
Silent Spring Author Rachel Carson
Year of publication _____________________________________
Purpose Carson aimed to alert people to ____________________________ on natural ecosystems.
She wishes to see pesticides use in a ________________ way.
Features of the book Carson wrote a lot of ___________________________ in the book, such as ______________________, _______________.
The arguments are strong and language is _______________.
Opposing voices Critics said that ______________________________________________ because she __________________________________.
Some also said that__________________________________.
Influence of the book __________________ was banned and the EPA was established in the US.
Carson earned a posthumous ________________________.
The book changed the world by increasing people’s ________
_________________________.
The author’s comment Carson made a crucial but potentially difficult-to-understand subject_____________________________________.
1962
the damaging effect of human activity
more responsible, limited and carefully monitored
scientific research and case studies
gypsy moth eradication program
fire-ant program
beautiful and elegant
Carson did not understand the science behind the arguments
was a marine biologist rather than a chemist
her work was more emotional than scientific
The use of DDT
Presidential Medal of Freedom
environmental awareness
interesting and accessible to millions of people
1. Why was Silent Spring so successful
2. What’s the moral lesson behind “A Fable for Tomorrow”
Activity 4 Deep thinking
1. Why was silent spring so successful
Silent Spring was so successful because it alerted the general public to the dangers of DDT. It planted important new ideas in the public mind, such as that spraying chemicals to control insect populations has an impact on other wildlife, and that the chemicals got into the food chain.
2. What is the moral lesson behind “A Fable for Tomorrow”
The moral lesson is that financial profit should not come at the expense of the environment and the creatures living in it.
Draw a mind-map in pairs and summarize what you’ve learnt today.
Activity 5 Summary
Write an award speech for Rachel Carson.
1. Read the passage again and make notes about her contributions to environmental protection.
2. About 100 words.
Assignment
For unless we listen to Rachel Carson’s warning, one day we may wake up to the strange and quiet horror of another silent spring.
Financial profit should not come at the expense of the environment and the creatures living in it.
Thank you!

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