Unit 5 Revealing nature Understanding ideas 课件(共36张PPT)-外研社版(2019)选择性必修第一册

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Unit 5 Revealing nature Understanding ideas 课件(共36张PPT)-外研社版(2019)选择性必修第一册

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(共36张PPT)
导课 ●明标
Revealing nature
导课 ●明标
Understanding ideas
A Journey of Discovery
《发现之旅》
导课 ●明标
Learning Aims
Get the main idea of the passage about Darwin’s journey on the Beagle and analyze its structure by using reading skills.
Know about Darwin’s scientific exploration experience and his theory of evolution, by figuring out how his journey inspired his groundbreaking discovery.
Develop a curious and rigorous attitude towards scientific exploration by learning from Darwin’s observation and thinking process during the journey.
自主 ●合作
Task 1: Listen to the tape carefully and then finish:
ACTIVITY4 -- Number the puzzle pieces in order.
on his jurney
develop
ideas
propose a theory
generate
ideas
look for
more evidence
ACTIVITY4 -- Number the puzzle pieces in order.
1
2
3
4
5
展示 ●质疑
A Journey of Discovery
Task 2: Read the paragraphs 1-3 carefully and then finish:
ACTIVITY4 -- Organise information from the passage and complete them.
自主 ●合作


A Journey of Discovery
on his jurney
Darwin studied ______________________ ____________________________________ ____________________________________.
He noticed that some species of animals were ______________________.
展示 ●质疑
The captain of the ship, the Beagle...
The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments. After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think differently. He noticed that some species of animals were very similar to each other. Maybe animals evolved as they adapted to their changing environments It was just an idea, but enough to inspire Darwin to look for more evidence.
1
The captain of the ship, the Beagle...
The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments. After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist
The captain of the ship, the Beagle...
The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments. After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist
various living things in their natural environments and samples of the plants and animals he had collected
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think differently. He noticed that some species of animals were very similar to each other. Maybe animals evolved as they adapted to their changing environments It was just an idea, but enough to inspire Darwin to look for more evidence.
very similar to each other
The captain of the ship, the Beagle...
The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments. After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think differently. He noticed that some species of animals were very similar to each other. Maybe animals evolved as they adapted to their changing environments It was just an idea, but enough to inspire Darwin to look for more evidence.
Darwin asked the questions:
How did different species ___________
______________________ _______________________ ____________?
generate ideas
2
come to exist
Maybe animals evolved as they adapted to their changing environments
展示 ●质疑
The captain of the ship, the Beagle...
The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments. After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think differently. He noticed that some species of animals were very similar to each other. Maybe animals evolved as they adapted to their changing environments It was just an idea, but enough to inspire Darwin to look for more evidence.
The captain of the ship, the Beagle, wanted someone who would “profit by the opportunity of visiting distant countries yet little known”. The person who answered the call was not the captain’s first choice. It was a young man who had left medical school without completing his degree. What’s more, he had recently received a letter from his father predicting that he would be “a disgrace to yourself and all your family”. Despite all this, his adventures on this ship would lead to one of the most important scientific discoveries of all time.
Paragraph 1
点评 ●提升
贝格尔号
从...中受益
引导定语从句
adj. 遥远的
响应号召
首选
而且,更重要的是,另外
是耻辱,是丢脸的事
过去分词短语作后置定语
即使,尽管 = in spite of
导致
有史以来
The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments...
Paragraph 2
点评 ●提升
Charles Darwin
做某事的机会
讨论(或议论)中的;有疑问
地质学家
博物学家
过去分词短语作后置定语
v. 迷住,深深吸引
... After Darwin had spent some time in South America, his
room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist
Paragraph 2
点评 ●提升
堆满,挤满
开始存在
n. 样本
A Journey
of Discovery
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think differently. He noticed that some species of animals were very similar to each other. Maybe animals evolved as they adapted to their changing environments It was just an idea, but enough to inspire Darwin to look for more evidence.
Paragraph 3
点评 ●提升
那时,当时
在地球上出现
同时
有不同的想法
与...非常相似(to是介词)
适应
inspire sb. to do sth激励某人做某事
寻找证据
as 引导时间状语从句
从...中受益
响应号召
首选
而且,另外
是丢脸的事
有史以来
有疑问
做某事的机会
堆满,挤满
开始存在
有不同的想法
与...非常相似
适应
寻找证据
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
profit by
answer the call
the first choice
what’s more
be a disgrace
of all time
in question
the chance to do...
be crowded with...
come to exist
think differently
be similar to
adapt to
look for evidence
A Journey
of Discovery
训练 ●巩固
KEY PHRASES
Charles Darwin was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance 1___________ (study) various living things in their natural environments. He noticed that some species of animals were very similar 2______ each other.
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think 3____________ (different).
课文语法填空
to study
to
differently
总结 ●测评
Sort out the notes and review them.
Preview the next part.
HOMEWORK
总结 ●测评
导课 ●明标
Revealing nature
从...中受益
响应号召
首选
而且,另外
是丢脸的事
有史以来
有疑问
做某事的机会
堆满,挤满
开始存在
有不同的想法
与...非常相似
适应
寻找证据
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
profit by
answer the call
the first choice
what’s more
be a disgrace
of all time
in question
the chance to do...
be crowded with...
come to exist
think differently
be similar to
adapt to
look for evidence
A Journey
of Discovery
REVUSION
KEY PHRASES
导课 ●明标
Understanding ideas
A Journey of Discovery
导课 ●明标
Learning Aims
Get the main idea of the passage about Darwin’s journey on the Beagle and analyze its structure by using reading skills.
Know about Darwin’s scientific exploration experience and his theory of evolution, by figuring out how his journey inspired his groundbreaking discovery.
Develop a curious and rigorous attitude towards scientific exploration by learning from Darwin’s observation and thinking process during the journey.
Self-study & Group work
Task 1: Listen to the tape carefully and the finish Activity 3 -- Choose the main idea of the passage and give your reasons.
naturalist n. 博物学家 Theory n. 理论 confirm v. 证实 确认
自主 ●合作
Choose the main idea of the passage and give your reasons.
1 Darwin’s interest in various living things made him a great naturalist.
2 Darwin’s journey on the Beagle inspired his Theory of Evolution.
3 Darwin went on a journey to confirm his theory that humans had evolved over time.
展示 ●质疑
Task 2: Read the paragraphs 4-6 carefully and then finish:
ACTIVITY4 -- Organise information from the passage and complete them.
自主 ●合作


A Journey of Discovery

look for more evidence
3
展示 ●质疑
On the Galápagos Islands:
He noticed ____________________ _____________________________.
It seemed the beaks __________ ___________________________
_________________.
When the Beagle reached the Galápagos Islands in 1835, Darwin saw a variety of new species, but it was the birds that interested him the most. Darwin noticed that there was a difference between the finches on each of the islands. It seemed their beaks had evolved according to what food was available on that particular island.
When the Beagle reached the Galápagos Islands in 1835, Darwin saw a variety of new species, but it was the birds that interested him the most. Darwin noticed that there was a difference between the finches on each of the islands. It seemed their beaks had evolved according to what food was available on that particular island.
that there was a difference between the finches on each of the islands
When the Beagle reached the Galápagos Islands in 1835, Darwin saw a variety of new species, but it was the birds that interested him the most. Darwin noticed that there was a difference between the finches on each of the islands. It seemed their beaks had evolved according to what food was available on that particular island.
had evolved according to what food was available on that particular island
develop ideas
4
Darwin suspected that
the finches _____________
_______________________
_______________________
______________ and it had
_______________________
_______.
Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before. Over time, it had slowly evolved into many new species. And that was the answer to how new species of plants and animals came to exist: they evolved from earlier ancestors.
Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before. Over time, it had slowly evolved into many new species. And that was the answer to how new species of plants and animals came to exist: they evolved from earlier ancestors.
Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before. Over time, it had slowly evolved into many new species. And that was the answer to how new species of plants and animals came to exist: they evolved from earlier ancestors.
展示 ●质疑
had evolved from
a common ancestor, which had arrived on the islands a long
time before
slowly evolved into many new species
It was a completely new idea—a theory of evolution,Darwin explained this theory in his book,On the Origin of Species. It was not published until 1859 and immediately caused a storm.Many people refused to believe that living things,including humans,had evolved from lower forms of life.They were shocked.But Darwin’s scientific studies were so convincing that more and more people started to believe his theory.
展示 ●质疑
propose a theory
5
The Theory of Evolution:
living things, including
humans, ____________
__________________.
It was a completely new idea—a theory of evolution,Darwin explained this theory in his book,On the Origin of Species. It was not published until 1859 and immediately caused a storm.Many people refused to believe that living things,including humans,had evolved from lower forms of life.They were shocked.But Darwin’s scientific studies were so convincing that more and more people started to believe his theory.
had evolved from lower forms of life
When the Beagle reached the Galápagos Islands in 1835, Darwin saw a variety of new species, but it was the birds that interested him the most. Darwin noticed that there was a difference between the finches on each of the islands. It seemed their beaks had evolved according to what food was available on that particular island.
Paragraph 4
点评 ●提升
加拉帕戈斯群岛
各种各样的
强调句
雀鸟
n. 鸟嘴,喙
it seems (that)…似乎…
根据
它们的喙似乎是根据所在岛屿上可觅得的食物进化而来的
adj. 可获得的
Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before. Over time, it had slowly evolved into many new species. And that was the answer to how new species of plants and animals
came to exist: they evolved from earlier ancestors.
Paragraph 5
点评 ●提升
v. 怀疑
共同的祖先
非限制性定语从句
很久以前
随着时间的推移
发展成,进化成
...的答案
由…进化而来
It was a completely new idea – a theory of evolution. Darwin explained this theory in his book, On the Origin of Species. It was not published until 1859 and immediately caused a storm. Many people refused to believe that living things, including humans, had evolved from lower forms of life. They were shocked. But Darwin’s scientific studies were so convincing that more and more people started to believe his theory.
Paragraph 6
点评 ●提升
进化论
《物种起源》
直到 ... 才...
引起(风暴)轰动
拒绝做某事
adj. 令人信服的 convince v. 使确信,使信服
Today, 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. And it all began with the journey on the Beagle.
Paragraph 7
A Journey of Discovery
点评 ●提升
被认为是
以...开始,始于...
1831
the Beagle
started his journey
South America,
asked himself questions
(generated ideas)
1835
(developed an idea)
answered the question
1859
published the book
(proposed a theory)
Darwin spent _____ years on his discovery
But spent _____ years publishing his Theory of Evolution in 1859
4
24
点评 ●提升
Survival of the fittest.
点评 ●提升
各种各样的
似乎…
根据
共同的祖先
很久以前
发展成,进化成
...的答案
由…进化而来
直到 ... 才...
引起轰动
拒绝做某事
被认为是
以...开始,始于...
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
a variety of...
it seems (that)...
according to...
a commom ancestor
a long time before
evolve into...
the answer to...
evolve from...
not... until...
cause a storm
refuse to do sth.
be regarded as...
begin with...
训练 ●巩固
KEY PHRASES
总结 ●测评
When the ship reached the Islands in 1835, it 4. _____(be) the birds that interested him the most. He suspected that the different 5. ________(finch) had evolved from a common ancestor, 6. _______ had arrived on the islands a long time before.
It was a 7. ___________(complete) new idea---a theory of evolution. Darwin explained this theory in his book, On the Origin of Species. Many people refused to believe that living things, 8. __________(include) humans, had evolved from lower forms of life. But Darwin`s scientific studies were so convincing 9. _________ more and more people started to believe his theory.
Today , the book is regarded as one of the most important 10. _______ (work) ever written.
课文语法填空
which
finches
including
that
completely
works
was
导课 ●明标
Sort out the notes and review them.
Preview the next part.
HOMEWORK
总结 ●测评

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