外研版(2019) 选择性必修第一册 Unit 5 Revealing Nature Understanding ideas课件(共32张PPT)

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外研版(2019) 选择性必修第一册 Unit 5 Revealing Nature Understanding ideas课件(共32张PPT)

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(共32张PPT)
The Lijiang River
nature
A Journey of Discovery
UNIT 5 Reveling nature(揭密自然)
Understanding ideas
科莫多巨蜥
meet
1. When did people first meet them
2. What did people know about their ancestor(祖先)
change and develop for the better
Animal-Learning
进化,演变
鸭嘴兽
假货;赝品
1.What did we know about the preserved(保存完好的) platypus body in the late 18th century
2. How long is the oldest discovered fossil(化石) of the modern platypus
date from/go back to
Animal-Learning
追溯到
鹦鹉螺
show
1.What is special about nautilus
2. What is often called by people
live and exist
Animal-Learning
幸存;存活
活化石
When it comes to animals and plants, what scientists come to your mind
Charles Darwin(1809-1882) was an English geologist, naturalist, and biologist, famous for his contributions to the science of evolution(进化). He changed the way we think about the origins(起源) of animals and plants.
About Charles Darwin
An evolutionary tree(进化树)
lower forms of life
higher forms of life
evolve---evolution(进化)
Prediction(预测)

The development of living things from lower to higher forms.
root
top
A Journey of Discovery
Prediction(预测)
a long trip
finding
Charles Darwin
by ship
Underline the topic sentence of each paragraph.
finding
a variety of new species
evolved from earlier ancestors
On the Origin of Species
Choose the main idea of the passage and give your reasons.
Activity 3
How he made the discovery
Para.1
Para.2
Para.3
Para.4
Para.5
Para.6
Para.7
Introduction
On his journey
Generate ideas
Look for more evidence
Develop ideas
Propose a theory
Conclusion
Read for the structure(结构)
人在旅途
展开观点
提出理论
产生观点
寻找证据
Para1: Labels(标签) on a young man
He was ______
____________.
He was a young man
_______________________
_______________________
_______________________ .
He was _______
________________
________________
________________
in his father’s
eyes
in captain’s
eyes
in common
people’s eyes
not the
first choice
who had left medical
school without
completing his degree
a
disgrace to
himself and
all his family
Introduction
Read for detailed information
Writing purpose: To attract reader’s interests
Read for detailed information
Para 2:
On his journey
who
what
collecting samples
asking himself a question
Charles Darwin was a geologist and naturalist, fascinated by rocks, plants and animals.
How did different species come to exist
Read for detailed information
Para 3:
Generate new ideas
old ideas
new ideas
what
how to prove
All species had appeared on Earth at the same time, and had not changed since
Animals evolved as they adapted to their changing environments
To look for more evidence
Read for detailed information
Para 4-5
Look for evidence and
Develop the ideas
how
answer of that question
Darwin noticed finches’ beaks had evolved according to what food was available on that particular island.
New species of plants and animals evolved from earlier ancestors.
Read for detailed information
Para 6-7
Propose a theory and conclusion
what
how
people's reaction
Influence
A theory of evolution.
Darwin explained this theory in his book, On the Origin of Species.
On the Origin of Species is regarded as one of the most important works ever written. It has changed ideas about life on Earth forever.
Many people refused to believe. They were shocked. Later, more and more people started to believe his theory.
Number the puzzle pieces in order. Organise information from the passage and comlete them.
1
2
3
4
5
1.Darwin studied_____________________in their natural environments and ___________________ _________________________he had collected.
2.He noticed that some species of animals were_______________________.
various living things
samples of the plants and animals
very similar to each other
ON HIS JOURNEY (Paras. 2-3)
Read for detailed information
Darwin asked the question:
1.How did different species_______________
2. Maybe animals evolved _________________________________
GENERATE IDEAS (Paras. 2-3)
come to exist
as they adapted to their changing environments
1’
Read for detailed information
On the Galapagos Islands:
1.He noticed that there was __________________________________on each of the islands.
2.It seemed the beaks ____________according to _________________________ on that particular island.
a difference between the finches
had evolved
what food was available
LOOK FOR MORE EVIDENCE (Para. 4)
1’
Read for detailed information
1.Darwin suspected that the finches __________________________________
And it had slowly ________________________________
2.Darwin found the answer to how species came to exit:
_____________________________
had evolved from a common ancestor
evolved into many new species
They evolved from earlier ancestors
DEVELOP IDEAS (Para. 5)
Read for detailed information
The theory of Evolution: living things, including humans, ____________________________
Today, On the origin of Species is regarded as______________________________________
had evolved from lower
forms of life
PROPOSE A THEORY (Paras. 6-7)
the most important works ever written
1’
Read for detailed information
South America, ask himself questions (generate ideas)
1835,answer the question(develop an idea)
1859,publish the book (propose a theory)
1831, the Beagle,start his journey
The text is organized in order of______ .
time
A summary(总结) of the passage
1.At that time, many people believed that all species had appeared on Earth at
the same time and had not changed since, but Darwin’s theory proposed that
living things, including humans, had evolved from lower forms of life, which,
as a result, shocked many people.
2.Darwin was a determined man. He had strong curiosity and interests in
science and was good at thinking and making discoveries.
Think & Share
I can succeed in science, the most important thing is the love of science and insisting on
long- term exploration.
---Charles Robert Darwin
Darwin’s scientific spirit
1. Write a short passage to tell the story of Darwin’s journey of discovery using your own words (about 100 words)
2. Do further research on why Darwin did not publish his Theory of Evolution until 1859---about twenty years after his discovery.
Homework
No practice, no gain in one's wit.
Can you list some famous Chinese Scientists
patritism 爱国精神
innovation 创新精神
truth-seeking求实精神
dedication 奉献精神
teamwork 协同精神
The spirit of Chinese scientists
Post reading
习近平总书记在二十大报告中强调,必须坚持科技是第一生产力,人才是第一资源,创新是第一动力。为庆祝二十大的胜利召开,请以“科技强国,未来有我” 为题,分组讨论如何在日常的学习和生活中践行中国科学家精神。
Experience and Practice
Post reading
Discuss:
How to practice What should we do
Useful words
senior high 高中生 dream big dreams 树立远大理想
scientific knowledge科学文化知识 inherit继承 develop发扬
hard work 艰苦奋斗 perseverance 坚持不懈 accept 接受
play an active role in.../ take an active part in 积极参加
activity活动 keep an open mind on 保持开放心态 challenge挑战
"We must regard science and technology as our primary productive force, talent as our primary resource, and innovation as our primary driver of growth," President Xi Jinping said in the 20th CPC National Congress.
___________(作为一名高中生),we should __________(树立远大理想) and strive to learn ____________(科学文化知识). Second, ______(继承)and_____(发扬)the scientists’ spirit of ________(艰苦奋斗) and _______(坚持不懈). Third, we should learn to _______(接受)and _____(学习) from mistakes and failure , ________(积极参加) kinds of _________(科学活动). Last but not the least, we should also _____________(培养开放意识) on ________(各种挑战)
Tips:
1. 树立远大理想,努力学习科学文化知识
2. 继承和发扬科学家们艰苦奋斗,坚持不懈的精神
3.学会接受并从挫折和失败中学习,积极参加各种科学活动
4.培养开放意识,积极面对各种挑战
Work hard !
Dream big !
Never give up !
THANK YOU!

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