人教高中英语必修3 Unit4 Astronomy: the science of the stars Reading课件（共34张PPT）

(共34张PPT)
Astronomy：

Astronomer：
Astronaut：


Disaster：
astro星星+nomy知识
the science of the stars
people who study stars
astro星星+naut航行
people who travel on the stars
dis糟糕的+aster星象
something terrible
astro-, aster- = star
Astronomy is the scientific study of the universe and the heaven bodies (such as the sun, the moon, and stars), gas, and dust within it.
What is Astronomy?
Mercury
水星
Mars
火星
Earth
地球
Venus
金星
Jupiter
木星
Saturn
土星
Uranus
天王星
Neptune
海王星
the eight planets in solar system
The solar system
My Very Earnest Mother Just Served UN a Pizza
How to remember the order of the eight planets around the sun?
Earth
Jupiter
Mars
Mercury
Neptune
Saturn
Uranus
Venus
Let’s appreciate
some beautiful pictures of the solar system.
Total lunar eclipse (月全食）
Total solar eclipse (日全食)
Meteor rain（流星雨）
Comet (彗星)
What interests you in astronomy?
Do you know any questions that astronomers are interested in?
How did life begin on Earth?
How was the universe formed?
Where are we from?
Each religion or culture has its own ideas about the beginning of the universe.
Can you tell us some tales about the beginning of the universe?
Chinese folk tale:
Bible:
science:
_______ created the world
and _________made the man
______ created the world, the first man _______ and the first woman _______
the Big Bang
How Life Began on the Earth
Pan Gu
Nu Wa
God
Adam
Eva

On The Earth
How
Life Began
?
What’s the writing style of the text?
A. Narrative 记叙文
B. Explanation 说明文
C. Essay 散文
11111111111111111111111111111
111111111111111111111111111
Match the main ideas:
Para. 1:
Para. 2:
Para. 3:
Para. 4:
Para. 5:
(E). How the universe began
(A). How the earth began
(C). Water is important
(D). Plants & animals developed on the earth
(B). Human beings appeared
Skills to help you: read the first and the last sentence of each para.
Fast Reading
How life developed on the earth.
?
3. a Big Bang
5. a cloud of dust
4. a solid globe
2. water
1. atmosphere
(A). 3 ? 1 ? 4 ? 2 ? 5
(B). 3 ? 5 ? 4 ? 1 ? 2
Para. 1&2
(C). 5 ? 3 ? 4 ? 2 ? 1
Careful Reading
Read Para. 1&2
How life began from water on the earth?
1. plants(植物)

2. insects (昆虫)

3. reptiles (爬行类)

4. shellfish and fish (贝类)

5. amphibians (两栖类)

6. mammals (哺乳类)
Study of the groups of life (生命的种类/物种)
1. First of all, shellfish and all sorts of fish
appeared on the surface of water.
2. Then, the extremely small plants developed.
3. Next, green plants began to grow on land.
4. Later, mammals appeared for the first time.
5. After that, dinosaurs developed, but they
disappeared 65 million years ago.
6. Then, reptiles began to rise.
7. At last, human beings came and spread all over
the world.
True or False ---- Read Para. 4&5
T
T
T
F
F
F
F
extremely small plants
shellfish & fish
reptiles
mammals
Plants in the water
Plants on land
insects (昆虫)& amphibians(两栖)
shellfish and fish
Reptiles(爬行)
Dinosaurs
Mammals (哺乳)
Human beings
Do some exercises
Go on
1
2
3
4
What made up the earth atmosphere? _________, __________, ______________ and ____________ made up the earth atmosphere.
Para. 2
carbon
nitrogen
water vapour
other gases
What problem is caused by human being? A. They live everywhere on the earth B. They cause global warming C. They find new methods of growing crops D. They enjoy hunting and fishing
Para. 5
Why was the earth different from other planets?
A. The earth had a solid shape.
B. The earth didn’t have harmful gases in its
atmosphere.
C. The water stayed on the earth but it disappeared
on other planets.
D. The water disappeared from the earth.
Para. 3
Why were mammals different from all kinds of forms in the past?

A. They produced young by laying eggs.
B. They gave birth to young baby animals and feed them with milk.
C. They live on the land.
D. They live on the land as well as in the water.
Para. 4
How life began on the earth.
Big Bang
Summary
small plants
shellfies & fish
green plants
insects and amphibians
reptiles
mammals
human beings
Life development
water to land
plants to animals
Water
A cloud of dust
A solid ball
dinosaurs
We have many problems today.
What can we do to protect life?
Discuss the questions
Then share your ideas

Love it
Protect it
Like a mother, the earth gives us a home.
Like a child, the earth needs our protection.
Give life a better place to live on.

* According to the discussion, write down a short passage.
* Read the text and get a better understanding.