外研版（2019）选择性必修第一册Unit 5 5Revealing nature Starting out课件(共20张PPT)
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| 名称 | 外研版（2019）选择性必修第一册Unit 5 5Revealing nature Starting out课件(共20张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 38.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-10-11 15:29:12 | ||
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文档简介
(共20张PPT)
Unit 5 Starting out
Revealing nature
揭示自然
导读课件
To grasp the real meanings of the phrases Revealing nature.
To learn about some unusual animals and plants in the world.
To know some things about seeds travelling.
To read a text about the diversity of species in nature.
To use different methods to search for information and learn more about biodiversity.
Learning objectives
REVEALING NATURE
揭示自然
PART 1: ANIMALS
Look at the page from a science
magazine and answer the questions.
1. What do you know about these animals
What makes them special
2. What other similar animals do you know about Share your knowledge with the class.
Activity 1
Komodo dragon:(科莫多巨蜥）
Komodo dragons were first encountered by Western researchers in 1910. The researchers said the ancestor of the Komodo dragon most likely evolved in Australia and spread westward, reaching the Indonesian island of Flores 900,000 years ago.
科莫多龙:(科莫多巨蜥)
1910年，西方研究人员首次发现了科莫多巨蜥。 研究人员表示，科莫多龙的祖先最有可能在澳大利亚进化并向西传播，90万年前到达印度尼西亚的弗洛雷斯岛。
Activity 1
The Komodo dragon is the largest lizard in the world. It can grow to three metres in length and can weigh about 135 kilograms. Despite its size and weight, it can run for short distances at up to 20 kilometres per hour.
科莫多巨蜥是世界上最大的蜥蜴。 它可以长到三米长，重约135公斤。 尽管它的体积和重量，它可以以每小时20公里的速度短距离奔跑。
Activity 1
Duck-billed platypus:
The first scientists to examine a preserved platypus body judged it a fake in the late 18th century. The oldest discovered fossil of the modern platypus dates back to about 100,000 years ago.
鸭嘴兽:
18世纪晚期，第一批检查保存完好的鸭嘴兽尸体的科学家判断它是假的。 发现的最古老的现代鸭嘴兽化石可以追溯到大约10万年前。
Activity 1
The Duck-billed platypus
The duck-billed platypus is a small egg-laying mammal (up to 60 cm in length) found only in Eastern Australia including Tasmania. As its name suggests, it has a mouth that looks like a duck`s bill, while its thick fur and flat tail are similar to those of a beaver（海狸）.
鸭嘴兽
鸭嘴兽是一种小型的卵生哺乳动物(长达60厘米)，只在东澳大利亚包括塔斯马尼亚发现。 顾名思义，它的嘴看起来像鸭子的嘴，而它的厚毛和平坦的尾巴类似于海狸。
Activity 1
Nautilus
Fossil records indicate that the nautilus has survived relatively unchanged for around 500 million years.
That is why it is often given the name “living fossil.”
鹦鹉螺
化石记录表明鹦鹉螺在大约5亿年的时间里相对不变地存活了下来。
这就是为什么它经常被称为“活化石”。
Activity 1
1. What makes them special
HINT: find something in common
They are all species that exist thousands of year s on earth; They are old and rare (unusual).
Activity 1
2. What other similar animals do you know about Share your knowledge.
Dinosaurs are a group of reptiles from the Mesozoic era (230 million years ago). Their strong limbs, long tails and large bodies are the portrayal of most dinosaurs. They live mainly in forested or open areas on the lakeshore plain (or coastal plain).
In 1841, British scientist Richard Owen, while studying several fossilized lizard-like bones, thought they were left behind by a prehistoric animal and named them dinosaurs, which means "terrible lizard."
恐龙是一种来自中生代(2.3亿年前)的爬行动物。 它们强壮的四肢，长长的尾巴和巨大的身体是大多数恐龙的写照。 它们主要生活在湖滨平原(或沿海平原)的森林或开阔地区。
1841年，英国科学家理查德·欧文在研究几块类似蜥蜴的骨骼化石时，认为它们是史前动物留下的，并将它们命名为恐龙，意思是“可怕的蜥蜴”。
Activity 1
PART 2: PLANTS
Watch the video and answer the questions.
Activity 2
Watch the video and fill the blanks on your worksheet
Why do seeds need to travel They need ________________________________.
How can the seeds travel Dandelion:
Dandelions have the seeds that get_________________________________.
Coconut:
coconuts are the seeds of ___________________, which spread their seeds by letting them ___________________ to somewhere new with the water.
a place (space) to grow up
blown away by the wind
coconut palms
float
Activity 2
Can you think of another example of seeds travelling Share it with the class.
Activity 2
Watch the video and fill the blanks on your worksheet
How can the seeds travel Burr: such as chestnut
Burrs spread their seeds through the help of _____________________.
The outside of the burr is covered with _______ ___________________, which enable them spread the seeds when the animals such as birds travel.
Fruits such as apples and melons:
When the animals eat these fruits, they carry the seeds away with their _____________. When they poop, the seeds ________________________ the poop.
animal helpers
tiny
hooked structures
stomach
are stuck in
Activity 2
Do you think our nature is in the good condition with human activity
Why should we know more about the nature
Never has it been more important to understand how the natural world works, and how to help it.
了解自然界是如何运作的，以及如何帮助它，从来没有像现在这样重要过。
Unit 5 Starting out
Revealing nature
揭示自然
导读课件
To grasp the real meanings of the phrases Revealing nature.
To learn about some unusual animals and plants in the world.
To know some things about seeds travelling.
To read a text about the diversity of species in nature.
To use different methods to search for information and learn more about biodiversity.
Learning objectives
REVEALING NATURE
揭示自然
PART 1: ANIMALS
Look at the page from a science
magazine and answer the questions.
1. What do you know about these animals
What makes them special
2. What other similar animals do you know about Share your knowledge with the class.
Activity 1
Komodo dragon:(科莫多巨蜥）
Komodo dragons were first encountered by Western researchers in 1910. The researchers said the ancestor of the Komodo dragon most likely evolved in Australia and spread westward, reaching the Indonesian island of Flores 900,000 years ago.
科莫多龙:(科莫多巨蜥)
1910年，西方研究人员首次发现了科莫多巨蜥。 研究人员表示，科莫多龙的祖先最有可能在澳大利亚进化并向西传播，90万年前到达印度尼西亚的弗洛雷斯岛。
Activity 1
The Komodo dragon is the largest lizard in the world. It can grow to three metres in length and can weigh about 135 kilograms. Despite its size and weight, it can run for short distances at up to 20 kilometres per hour.
科莫多巨蜥是世界上最大的蜥蜴。 它可以长到三米长，重约135公斤。 尽管它的体积和重量，它可以以每小时20公里的速度短距离奔跑。
Activity 1
Duck-billed platypus:
The first scientists to examine a preserved platypus body judged it a fake in the late 18th century. The oldest discovered fossil of the modern platypus dates back to about 100,000 years ago.
鸭嘴兽:
18世纪晚期，第一批检查保存完好的鸭嘴兽尸体的科学家判断它是假的。 发现的最古老的现代鸭嘴兽化石可以追溯到大约10万年前。
Activity 1
The Duck-billed platypus
The duck-billed platypus is a small egg-laying mammal (up to 60 cm in length) found only in Eastern Australia including Tasmania. As its name suggests, it has a mouth that looks like a duck`s bill, while its thick fur and flat tail are similar to those of a beaver（海狸）.
鸭嘴兽
鸭嘴兽是一种小型的卵生哺乳动物(长达60厘米)，只在东澳大利亚包括塔斯马尼亚发现。 顾名思义，它的嘴看起来像鸭子的嘴，而它的厚毛和平坦的尾巴类似于海狸。
Activity 1
Nautilus
Fossil records indicate that the nautilus has survived relatively unchanged for around 500 million years.
That is why it is often given the name “living fossil.”
鹦鹉螺
化石记录表明鹦鹉螺在大约5亿年的时间里相对不变地存活了下来。
这就是为什么它经常被称为“活化石”。
Activity 1
1. What makes them special
HINT: find something in common
They are all species that exist thousands of year s on earth; They are old and rare (unusual).
Activity 1
2. What other similar animals do you know about Share your knowledge.
Dinosaurs are a group of reptiles from the Mesozoic era (230 million years ago). Their strong limbs, long tails and large bodies are the portrayal of most dinosaurs. They live mainly in forested or open areas on the lakeshore plain (or coastal plain).
In 1841, British scientist Richard Owen, while studying several fossilized lizard-like bones, thought they were left behind by a prehistoric animal and named them dinosaurs, which means "terrible lizard."
恐龙是一种来自中生代(2.3亿年前)的爬行动物。 它们强壮的四肢，长长的尾巴和巨大的身体是大多数恐龙的写照。 它们主要生活在湖滨平原(或沿海平原)的森林或开阔地区。
1841年，英国科学家理查德·欧文在研究几块类似蜥蜴的骨骼化石时，认为它们是史前动物留下的，并将它们命名为恐龙，意思是“可怕的蜥蜴”。
Activity 1
PART 2: PLANTS
Watch the video and answer the questions.
Activity 2
Watch the video and fill the blanks on your worksheet
Why do seeds need to travel They need ________________________________.
How can the seeds travel Dandelion:
Dandelions have the seeds that get_________________________________.
Coconut:
coconuts are the seeds of ___________________, which spread their seeds by letting them ___________________ to somewhere new with the water.
a place (space) to grow up
blown away by the wind
coconut palms
float
Activity 2
Can you think of another example of seeds travelling Share it with the class.
Activity 2
Watch the video and fill the blanks on your worksheet
How can the seeds travel Burr: such as chestnut
Burrs spread their seeds through the help of _____________________.
The outside of the burr is covered with _______ ___________________, which enable them spread the seeds when the animals such as birds travel.
Fruits such as apples and melons:
When the animals eat these fruits, they carry the seeds away with their _____________. When they poop, the seeds ________________________ the poop.
animal helpers
tiny
hooked structures
stomach
are stuck in
Activity 2
Do you think our nature is in the good condition with human activity
Why should we know more about the nature
Never has it been more important to understand how the natural world works, and how to help it.
了解自然界是如何运作的，以及如何帮助它，从来没有像现在这样重要过。