外研版（2019）选择性必修 第一册Unit 5 Revealing nature Understanding ideas课件(共21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21张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 8.2MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-10-22 21:46:44 | ||
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(共21张PPT)
新外研社高中英语选择性必修一Unit 5 Revealing nature
Starting Out&Understanding Ideas
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.
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.
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.
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.
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.
1. How can seeds travel How can this benefit plants
2. Can you think of another example of seeds travelling Share it with the class.
Watch the video and answer the questions.
Activity 1
How seeds travel
How can seeds travel
Seeds cane travel great distances by being carried by the _________ , upon the ____________, __________ or __________.
wind
water
animals
people
2. How can this benefit plants
Seeds have a __________(better/worse) chance at life when they are ________(closer/further) away from their parent plant. Growing too _________(far/close)to the parent plant means seeds might not get enough_______, ________and nutrients from the _______. A species is ________(more/less) likely to _________ if its members are more ________(closely/widely) spread.
better
further
close
sun
water
soil
more
survive
widely
The structure
1
2--5
The text is organized in ______ order.
Para___
Para___
Para 6-7
time
Before
the journey
During
the journey
England
In 1831
In 1835
Fast reading
Can you find out what kind of narrative order(叙述顺序)
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.
1.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.
2.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
Samples of the plants and animals
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.
3.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.
4.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.
5.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.
Evidence
1831
the Beagle
started his journey
South America,
asked himself questions
(generated ideas)
(developed an idea)
answered the question
1835
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
A ________ Journey of __________Discovery by_______Darwin
tough
important
brave
perseverant
Summary
Post reading
What have you learnt about the spirit of scientific exploration How can this spirit help you in your life and studies
What kind of person was Darwin according to the passage
What have you learnt about the spirit of scientific exploration
Darwin was a determined man. He had strong curiosity and interests in science and was good at thinking and making discoveries.
Think and Share
3. Number the pieces in order. Organise information from the passage and complete them.
1 On his journey
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
新外研社高中英语选择性必修一Unit 5 Revealing nature
Starting Out&Understanding Ideas
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.
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.
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.
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.
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.
1. How can seeds travel How can this benefit plants
2. Can you think of another example of seeds travelling Share it with the class.
Watch the video and answer the questions.
Activity 1
How seeds travel
How can seeds travel
Seeds cane travel great distances by being carried by the _________ , upon the ____________, __________ or __________.
wind
water
animals
people
2. How can this benefit plants
Seeds have a __________(better/worse) chance at life when they are ________(closer/further) away from their parent plant. Growing too _________(far/close)to the parent plant means seeds might not get enough_______, ________and nutrients from the _______. A species is ________(more/less) likely to _________ if its members are more ________(closely/widely) spread.
better
further
close
sun
water
soil
more
survive
widely
The structure
1
2--5
The text is organized in ______ order.
Para___
Para___
Para 6-7
time
Before
the journey
During
the journey
England
In 1831
In 1835
Fast reading
Can you find out what kind of narrative order(叙述顺序)
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.
1.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.
2.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
Samples of the plants and animals
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.
3.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.
4.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.
5.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.
Evidence
1831
the Beagle
started his journey
South America,
asked himself questions
(generated ideas)
(developed an idea)
answered the question
1835
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
A ________ Journey of __________Discovery by_______Darwin
tough
important
brave
perseverant
Summary
Post reading
What have you learnt about the spirit of scientific exploration How can this spirit help you in your life and studies
What kind of person was Darwin according to the passage
What have you learnt about the spirit of scientific exploration
Darwin was a determined man. He had strong curiosity and interests in science and was good at thinking and making discoveries.
Think and Share
3. Number the pieces in order. Organise information from the passage and complete them.
1 On his journey
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