外研版(2019)选择性必修三Unit6 Nature in words Developing ideas 课件(共35张PPT)

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名称 外研版(2019)选择性必修三Unit6 Nature in words Developing ideas 课件(共35张PPT)
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版本资源 外研版(2019)
科目 英语
更新时间 2024-04-04 20:23:24

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(共35张PPT)
Developing ideas
—Reading comprehension
Silent Spring
Unit 6 Nature in words
By the end of this period, students will be able to:
1. understand the content of the text and the author’s evaluation of Rachel Carson;
2.figure out the basic structure of a book review;
3. find out the message conveyed in Silent Spring and the influence of the book;
4.know the impact of human activities on the natural environment, and improve the awareness of protecting nature.
CONTENTS
Pre-reading
I
While-reading
II
Post-reading
III
Sentences analysis
IV
Do you know something about DDT
1962年,美国科学家蕾切尔·卡逊(Rachel Carson)在其著作《寂静的春天》中怀疑,DDT进入食物链,是导致一些食肉和食鱼的鸟接近灭绝的主要原因。因此从70年代后DDT逐渐被世界各国明令禁止生产和使用。
Pre-reading
DDT is a chemical compound that was originally developed as an insecticide. It has no colour, taste or odour. Its agricultural use was banned in the US in 1972 because of its damaging effects on the environment.
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(疟疾) control.
information+graphic(图表)
[m le r ]
1. 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
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
a book that led to the banning of DDT
Let’s 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.
DDT is highly poisonous to living organism, including humans.
Book
Review
Basic Information
of the book
Features of the writing
Comments on this book
Influence of this book
the author,
year of publication,
theme, main idea,
reason for publication
Content of this book
Now read the passage and check your prediction.
Activity 1 Fast- reading for main ideas
1. What is the passage mainly about
A. A book review on Silent Spring.
B. The life story of Rachel Carson.
C. What took place in a silent spring.
D. The book was received positively by all the people.

While-reading
Para. 1
Para. 2
Para. 3
Para. 4
Para. 5
A. The aim of the book.
B. The opening of the book.
C. The book’s great impact.
D. Some unsuccessful solutions.
E. The book deserves to be reread.
F. Comments on the book.
Para. 6
2.Match each paragraph with its main idea.
Activity 2:Careful- reading for details.
There was a strange stillness. The birds, for example – where had they gone Many people spoke of them, puzzled and disturbed. The feeding stations in the backyards were deserted. The few birds seen anywhere were moribund; they trembled violently and could not fly. It was a spring without voices. On the mornings that had once throbbed with the dawn chorus of robins (知更鸟), catbirds (北美猫鸟), doves (鸽子), jays (松鸦), wrens (鹪鹩), and scores of other bird voices there was now no sound; only silence lay over the fields and woods and marsh.
1. What’s the topic of Silent Spring according to these lines
A. Love, hope, human. B. Nature, love, life.
C. Nature, life, human. D. Nature, love, human.

2.Why did many people get puzzled and disturbed
A. Because they didn’t speak of birds again.
B. Because the feeding stations were destroyed.
C. Because birds voices were unusual.
D. Because most birds were gone.

moribund adj. [正式用语]垂死的
该词源自拉丁语 moribundus (垂死的、在死亡的边缘)。
Read Para. 1 and do the following exercises.
robins (知更鸟)
catbirds (北美猫鸟)
doves (鸽子)
jays (松鸦)
wrens (鹪鹩)
Guess the names of these birds.
Rachel Carson was a scientist by profession, but these lines from the opening chapter of her 1962 book Silent Spring, “A Fable for Tomorrow”, show her talent as a writer. By imagining a world without birds, she aimed to alert not only the scientific community but also the general public to the damaging effects of human activity on natural ecosystems—in particular, to the harmful use of pesticides, such as DDT. She believed that the chemical industry was knowingly causing harm to plants, animals and even humans, and wished to see pesticides used in a more responsible, limited and carefully monitored way.
The aim of the book.
1.What’s Rachel Carson’s purpose of writing the book Silent Spring
A. To prove the birds are dying out.
B. To remind people.
C. To show her writing ability.
D. To warn people not to trade in wild animals.

Read Para. 2 and do the following exercises.
2. What caused silent spring according to paragraph 2
A. The birds didn’t wake up so early.
B. The people killed the birds randomly.
C. The animals all died out because of human activity.
D. The birds died because of the harmful use of pesticides.
She believed that the chemical industry was knowingly causing harm to plants, animals and even humans, and wished to see pesticides used in a more responsible, limited and carefully monitored way.

We can conclude from her words that pesticides should be used in a more ___________way.
reasonable
Carson urged people to make themselves aware of the facts and do something about the situation. Silent Spring contains a lot of scientific research and case studies. The book details the gypsy moth eradication programme, which killed birds, in addition to gypsy moths. Another case study was the fire-ant programme that killed cows, but not fire ants. The book also gives dozens of other examples of eradication programmes that did nothing to reduce the problems they were originally designed to solve. The 50 or so pages at the end of the book list Carson’s sources, showing how thorough and precise she was as a scientist.
Some unsuccessful solutions.
1. What’s the purpose of so many research and case studies in the book
To make people aware of the facts and do something about the situation.
2. Find the unsuccessful solutions in this paragraph.
(1)The gypsy moth eradication programme, which killed birds, in addition to gypsy moths. (2)The fire-ant programme that killed cows, but not fire ants.
Read Para. 3 and do the following exercises.
3. How did Carson show people failed to solve the problems they faced
A. By giving examples. B. By doing experiments herself.
C. By searching on the Internet. D. By telling some fables.

4. Can you find more evidence that shows Rachel Carson was a scientist
The 50 or so pages at the end of the book list Carson’s sources, showing how thorough and precise she was as a scientist.
thorough:doing things very carefully and with great attention to detail
仔细周到;工作缜密;一丝不苟
Carson’s message was very alarming, causing a great increase in environmental awareness. Its impact was immediate and far-reaching: the use of DDT was banned and the Environmental Protection Agency (EPA) was established in the US. Silent Spring was therefore regarded as a milestone in the launch of the green movement in the Western world. It also earned Carson a posthumous Presidential Medal of Freedom and put her face on the 17-cent US stamp.
The book’s great impact.
The use of DDT was banned: EPA was established; It earned Carson a posthumous Presidential Medal of freedom
1.What are the impacts
2. What caused a great increase in the awareness of protecting the environment
A. Carson’s research. B. The fire -ant program.
C. The green movement. D. Some gypsy moths.

posthumous:post- (后) + hum (土),埋藏,引申为死→死后的
Read Para. 4 and do the following exercises.
Background information
The Environmental Protection Agency, established in 1970, is an independent agency of the US government. It works to protect human health and the environment through regulating auto emissions, banning the use of DDT, cleaning up toxic waste, increasing recycling, etc.
Background information
Presidential Medal of Freedom
总统自由勋章是美国最高荣誉的文职勋章,由美国总统一年一度颁发,与国会金质奖章并列为美国最高的平民荣誉。受奖者不一定是美国公民。该荣誉向在科学、文化、体育和社会活动等领域
作出杰出贡献的平民颁发。最早于1945年由哈里·S·杜鲁门总统创立,以表彰在第二次世界大战中有杰出贡献的平民。1963年约翰·肯尼迪总统重新恢复该勋章,并扩充得奖对象,修改为授予在和平时期有杰出贡献的平民。
Silent Spring was not, however, received positively by everyone. Though Carson’s research was strong and was supported by most scientists who reviewed her work, the book quickly became a target for critics in the pesticide industry. They said that Carson did not understand the science behind her arguments because she was a marine biologist rather than a chemist. Some also said that her work was more emotional than scientific. These were attempts to damage Carson’s reputation and stop her work from influencing public policy, but she remained determined to stand by her research. Carson appeared in public and on television to defend her claims – and today, more than 50 years after it was published, the voice of Silent Spring is still ringing loud and clear.
Comments on the book.
1.What are the negative voices
They said that Carson did not understand the science behind her arguments. Some also said that her work was more emotional than scientific.
2. Faced with the negative voices, what did Carson do
Carson appeared in public and on television to defend her claims.
Read Para. 5 and do the following exercises.
3. Who did Carson mainly get criticism from
A. Most scientists. B. Chemists.
C. Marine biologists. D. Pesticide industry people.

Do you agree that financial profit should come at the expense of the environment and the creatures living in it
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.
Background information about the author Rachel Carson.
Personally, I enjoy Carson’s book. She made a crucial but potentially difficult-to-understand subject interesting and accessible to millions of people. This is not so much because of the quality of her arguments, strong though they are, but because of the beauty and elegance of her writing. Her book not only changed the world; half a century later it remains a book that deserves to be reread today, so that we can once again feel ourselves warm to the fire of its passionate message. For unless we do listen to Rachel Carson’s warning, one day we may wake up to the strange and quiet horror of another silent spring.
1.What is the author’s attitude to Carson’s book
A. Critical. B. Indifferent. C. Supportive. D. Unfavourable.
2. Why does the author enjoy Carson’s book
A. Her warning is strong.
B. Her book has changed the world.
C. Her writing is beautiful and elegant.
D. She describes a beautiful silent spring.


Read Para. 6 and do the following exercises.
1. What’s the genre(体裁) of the passage
A. Book review.
B. Narrative writing.
C. Expository writing.
D. Argumentative writing.
2. Why was Silent Spring so successful
A. Because it caused a great increase in environmental awareness.
B. Because the writer was very famous.
C. Because it reflected the realism.
D. Because the birds described were very nice.


Read the whole passage again and do the following exercises.
3.Organize information from the passage and complete the notes about Silent Spring.
Silent Spring
Author: Rachel Carson
Year of publication: 1._______________
Purposes: Carson aimed to alert people to 2. _______________________________
on natural ecosystems.
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.__________________. Opposing voices: 6.____________________ said that Carson’s research is not precise.
Carson appeared in public and on television to 7. _________________.
Influence of the book: 8.______________ was banned and the EPA was established in the US.
Carson earned a posthumous 9.____________________________.
The book changed the world by increasing people’s
10. ___________________________.
1962
the damaging effects of human activity
more responsible, limited and
carefully monitored
scientific information, examples and research
beautiful and elegant
The pesticide industry
defend her claims
The use of DDT
Presidential Medal of Freedom
environmental awareness
Enjoy a video.
Post-reading
Students’ own answers.
1. What is the moral lesson behind “A Fable for Tomorrow” (Critical thinking)
Activity 1 Discussion
2. In what different ways do First Snow and Silent Spring raise people’s awareness of nature
Students’ own answers.
For unless we do 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.
Rachel Carson was a scientist by profession, but she published her book Silent Spring in 1962.By imagining 1.____ world without birds, she aimed to alert people to the damaging effects of human activity on natural ecosystems—2.____ particular, to the harmful use of pesticides, such as DDT. Carson urged people 3.________(make) themselves aware of the facts and do something about the situation. Carson’s message was very alarming,4.________(cause) a great increase in environmental 5.__________(aware). Its impact was immediate and far-reaching.Therefore, Silent Spring 6.___________(regard) as a milestone in the launch of the green movement in the Western world.
Silent Spring was not, however,received 7.__________(positive) by everyone. The book quickly became a target for critics in the pesticide industry. But Carson remained 8.__________(determine) to stand by her research.
Personally, I enjoy Carson’s book.Half a century later it remains a book 9._________ deserves to be reread today, so that we can once again feel ourselves warm to the fire of its 10.__________(passion) message.
a
in
to make
causing
awareness
Activity 2 Summary
was regarded
determined
that/which
passionate
positively
Sentences Analysis
1. She believed that the chemical industry was knowingly causing harm to plants, animals and even humans, and wished to see pesticides
used in a more responsible, limited and carefully monitored way.
[句式分析] 此句为_______句。句子主语为_____,and连接并列的谓语________和________;that引导_______从句;used in a...way为过去分词短语作___________。
[自主翻译] 
believed wished
宾语
她认为化学工业正在明目张胆地对动植物,甚至对人类
She
复合
宾语补足语
本身造成伤害,她希望人们在使用杀虫剂时能够更加负责、节制,并且严加监管。
2. The book also gives dozens of other examples of eradication programmes that did nothing to reduce the problems they were originally designed to solve.
[句式分析] 此句为_______句。主句为:______ ;that did nothing...是that引导的______从句,修饰eradication programmes; they were originally designed to solve 是______从句,修饰____________,省略了关系代词__________。
[自主翻译] 
复合
定语
the problems
书中还讲了几十个其他灭除计划的案例,都未能像
定语
that/which
预期那样解决问题。
3. The 50 or so pages at the end of the book list Carson’s sources, showing how thorough and precise she was as a scientist.
[句式分析] 此句为______句。主句为:_____;showing…为现在分词短语作________;how thorough and precise she was as a scientist为_______从句。
[自主翻译] 
复合
状语
宾语
这本书最后的五十几页列出了卡森的资料来源,显示出
她作为一名科学家的周密和严谨。
4. Though Carson’s research was strong and was supported by most scientists who reviewed her work, the book quickly became a target for critics in the pesticide industry.
[句式分析] 此句是______句。主句是:______; though 引导___________从句,从句中包含who引导的________从句,修饰_________________。
[自主翻译] 
复合
让步状语
定语
虽然卡森的研究很有说服力,而且得到多数审阅过这本
most scientists
书的科学家的支持,但是这本书很快成了杀虫剂行业批判的对象。
5. This is not so much because of the quality of her arguments, strong though they are, but because of the beauty and elegance of her writing. [句式分析] 该句是_______句。not...but...连接并列的________;though引导_________从句,使用了_________句式,正常语序可表达为 ______________________。
[自主翻译] 
复合
表语
让步状语
倒装
而是因为她美丽和高雅的文笔让读者喜欢。
though they are strong
这并不都是因为她书中高质量的论点是多么强有力,
Review what we have learnt and preview language points.
Homework