外研版（2019）选择性必修第一册Unit 5 Revealing nature-Understanding ideas课件 （共18张PPT）
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| 名称 | 外研版（2019）选择性必修第一册Unit 5 Revealing nature-Understanding ideas课件 （共18张PPT） |  | |
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| 文件大小 | 4.6MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2022-07-05 17:32:00 | ||
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(共18张PPT)
Unit 5 Revealing nature
to make known something that was
previously secret or unkown
1 What species do you recognise in the picture
2 What factors can cause the process of evolution
The ever-changing environment of nature; environmental changes;
population immigration;
genetic mutation;
cultural preferences...
lower forms of life
higher forms of life
evolve---evolution
Darwin's Theory of Evolution is one of the basic foundations of modern science. It shows that plants and animals can change over time. The changes are usually small and difficult to detect, but they add up over many generations and can result in new species.
The British biologist, naturalist and the founder of Theory of Evolution.
In his early years, he sailed around the world on the Beagle for five years, and observed and collected a lot of animals, plants and geological structures. He published the Origin of Species and put forward the theory of biological evolution.
Charles Robert Darwin
Feb 12th, 1809—Apr 19th, 1882
Read the passage and talk about your understanding of the title.
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.
He was not the captain’s first choice.
He was a disgrace to himself and all his family.
He was a young man who had left medical school without completing his degree.
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
Charles Darwin was a geologist and naturalist, fascinated by rocks, plants and animals.
How did different species come to exist
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.
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 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.
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.
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.
A _________ ancestor
__________ into different species
common
evolve
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.
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.
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.
Comics used to mock Charles Darwin
_______ to believe
people were _______
______ to believe
refused
shocked
started
Which one is the best
A. Darwin’s interest in various living things made him a great naturalist.
B. Darwin’s journey on the Beagle inspired his Theory of Evolution.
C. Darwin went on a journey to confirm his theory that humans had
evolved over time.
Choose the main idea of the passage and give your reasons.
Number the puzzle pieces in order.
Organise information from the passage and complete them.
1 On his journey on the Bealge:
various living things in their natural
environments and samples of the plants and
animals he had collected.
very similar to each other.
2 Generate ideas
come to exist
Maybe animals evolved as they adapted to their
changing environments？
3 Look for more evidence
that there was a difference between the finches on
each of the islands.
had evolved according to what food was available
on that particular island.
4 Develop ideas
had evolved from a common ancestor, which had
arrived on the islands a long time before
slowly evolved into many new species.
5 Propose a theory
had evolved from lower forms of life.
1
4
2
3
5
The structure
1
2--5
The text is organized in order of____ .
Para___
Para___
Para 6-7
time
Before
the journey
During
the journey
asked himself a question(generated an idea)
answered the question(developed an idea)
published the book (proposed a theory)
started his journey
Darwin was a determined man. He had strong curiosity and interests in science and was good at thinking and making discoveries.
Why were many people “shocked” by Darwin’s theory？
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. What kind of person was Darwin according to the passage
Unit 5 Revealing nature
to make known something that was
previously secret or unkown
1 What species do you recognise in the picture
2 What factors can cause the process of evolution
The ever-changing environment of nature; environmental changes;
population immigration;
genetic mutation;
cultural preferences...
lower forms of life
higher forms of life
evolve---evolution
Darwin's Theory of Evolution is one of the basic foundations of modern science. It shows that plants and animals can change over time. The changes are usually small and difficult to detect, but they add up over many generations and can result in new species.
The British biologist, naturalist and the founder of Theory of Evolution.
In his early years, he sailed around the world on the Beagle for five years, and observed and collected a lot of animals, plants and geological structures. He published the Origin of Species and put forward the theory of biological evolution.
Charles Robert Darwin
Feb 12th, 1809—Apr 19th, 1882
Read the passage and talk about your understanding of the title.
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.
He was not the captain’s first choice.
He was a disgrace to himself and all his family.
He was a young man who had left medical school without completing his degree.
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
Charles Darwin was a geologist and naturalist, fascinated by rocks, plants and animals.
How did different species come to exist
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.
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 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.
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.
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.
A _________ ancestor
__________ into different species
common
evolve
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.
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.
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.
Comics used to mock Charles Darwin
_______ to believe
people were _______
______ to believe
refused
shocked
started
Which one is the best
A. Darwin’s interest in various living things made him a great naturalist.
B. Darwin’s journey on the Beagle inspired his Theory of Evolution.
C. Darwin went on a journey to confirm his theory that humans had
evolved over time.
Choose the main idea of the passage and give your reasons.
Number the puzzle pieces in order.
Organise information from the passage and complete them.
1 On his journey on the Bealge:
various living things in their natural
environments and samples of the plants and
animals he had collected.
very similar to each other.
2 Generate ideas
come to exist
Maybe animals evolved as they adapted to their
changing environments？
3 Look for more evidence
that there was a difference between the finches on
each of the islands.
had evolved according to what food was available
on that particular island.
4 Develop ideas
had evolved from a common ancestor, which had
arrived on the islands a long time before
slowly evolved into many new species.
5 Propose a theory
had evolved from lower forms of life.
1
4
2
3
5
The structure
1
2--5
The text is organized in order of____ .
Para___
Para___
Para 6-7
time
Before
the journey
During
the journey
asked himself a question(generated an idea)
answered the question(developed an idea)
published the book (proposed a theory)
started his journey
Darwin was a determined man. He had strong curiosity and interests in science and was good at thinking and making discoveries.
Why were many people “shocked” by Darwin’s theory？
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. What kind of person was Darwin according to the passage