人教版高中英语 Book 3 unit 4 Astronomy : the science of the stars Reading 1 教学课件 （共23张PPT）

(共23张PPT)
Learning objectives
了解宇宙大爆炸以及地球生命的起源
认知本节课所涉及到的单词及短语
学习并掌握基本的阅读技巧
通过阅读意识到保护地球的重要性
1.insects
2.plants
3.reptiles [′repta?l] （爬行类）
4.shellfish ['?elf??] （贝类）
5.fish
6.amphibians [?m′f?bi?n] （两栖类）
7.mammals['m?ml](哺乳类)
the groups of life (生命的种类/物种)
Carbon dioxide [′kɑ:b?n da?′?ksa?d]
二氧化碳 Nitrogen[′na?tr?d??n]氮 Water vapor [‘ve?p?] 水蒸气 Oxygen [′?ks?d??n]氧气
Atmosphere [′?tm?sf??(r)] 大气层，气氛
1. When did the “Big Bang” happen?
2. What form was the earth after the “Big Bang”?
3. What made up the earth’s atmosphere after the earth exploded?
4. How did water come into being on the earth?
5. What made possible the rise of mammals on the earth?
Read the passage quickly and answer the following questions.
1. When did the “Big Bang” happen?
It happened several billion years ago.
2. What form was the earth after the “Big Bang”?
The earth was still just a cloud of dust.
3. What made up the earth’s atmosphere after the earth exploded?
Carbon, nitrogen, water vapour and other gases.
4. How did water come into being on the earth?
As the earth cooled down after it exploded, water came into being.

5. What made possible the rise of
mammals on the earth?
The disappearance of dinosaurs made the possible the rise of mammals on the earth.
I. Read the passage carefully and match the main idea with each paragraph.
Para. 1 The formation (形成) of the
earth.
Para. 2 The importance of water for
life.
Para. 3 A widely accepted theory
about the formation of the
universe.
Para. 4 The arrival of humans and
their impact on the earth.
Para. 5 The development of plants
and animals on the earth.
Finish the Exercise 2 on the book according to the questions above.
IV. True (T) or False (F).
1. The earth appeared before the Big Bang happened.
2. The original atmosphere consisted of nitrogen and oxygen.
3. The main difference between the earth and other planets is that there is water on the earth.
4. Life began in water and then on land.
F
F
T
T
5. Mammals appeared before the development of dinosaurs.
6. Dinosaurs could give birth to young baby animals and produced milk to feed them.
7. Human beings produce too much carbon dioxide which causes the global warming on the earth.
8. According to the text, human beings would disappear in the end.
F
F
T
F
How life began on the earth.
“Big Bang”
other bodies
________
stars
Earth: a cloud of _____
atoms
dust
a solid _____
the earth’s _____________
other 4.
_____
Water: ____________ to the development of life
water vapour
nitrogen
carbon
extremely small _______ on the
surface of the water
globe
gases
atmosphere
fundamental
plants
early _________ and all sorts of fish
green plants on land
land animals
insects
amphibians
___________
huge animals
(dinosaurs)
the rise of __________
human beings
shellfish
reptiles
mammals
What should we do for our earth?
Heal The World Michael Jackson
There's a place in your heart And I know that it is love
And this place could be much Brighter than tomorrow
And if you really try You'll find there's no need to cry
In this place you'll feel There's no hurt or sorrow
There are ways to get there If you care enough for the living
Make a little space Make a better place ...
Heal the world Make it a better place
For you and for me And the entire human race
There are people dying If you care enough for the living
Make it a better place For you and for me
If you want to know why There's love that cannot lie
Love is strong It only cares of joyful giving
If we try we shall see In this bliss we cannot feel
Fear od dread We stop existing and start living
The it feels that always Love's enough for us growing
So make a better world Make a better place ...

Writing
You can use the following words or phrases to help you:
prevent… from… harmful global warming carbon dioxide in turn depend on as a result thus atmosphere
Let’s take part in the activities to save the earth!