Period2 Intensive Reading

Unit4 Astronomy

HOW LIFE BEGAN

ON THE EARTH?

Pre-reading

1. Do you know each religion or culture has its own ideas about the beginning of the universe?

Pangu separates the sky from the earth

China

中国神话传说中有盘古开天地的说法。巨人盘古用一把利斧劈开混沌 , 将天地分开。死后 , 他的气息化成风和云 , 声音变成轰轰的雷声 , 左眼化为太阳 , 右眼化为月亮 , 手足与四肢变成大地的四极与五方的名山 , 血液化成江河 , 筋脉铺成道路 , 肌肉形成田地 ,须发成为星星 , 牙齿和骨骼化为金属、珍珠、玉石 , 汗水成为滋润万物生长的甘霖和雨露。

Nuwa makes human beings

Other legends about the beginning of the universe.

Day 1: God spoke and separated light from darkness creating Day and Night

Day 2: God spoke and separated the water creating sky and ocean

Day 3: God spoke and created dry land

Day 4: God spoke and created the sun, moon and stars

Day 5: God spoke and created living creatures in the air and sea

Day 6: God spoke and created the land animals and man

Day 7: God rested and blessed this day calling it Holy

India

Brahma is the god first represented in the Hindu Triad. He is the creator of the universe and all living beings are said to have evolved from him.

2. Do you know what a scientific idea is?

It should be an idea coming from scientific theory.

The Big Bang

▲Big Bang

Gas New stars

Dying starsremnants

Let’s enjoy some astronomic phenomena .astronomic phenomena .

nebulanebula

The Milky WayThe Milky Way

THE SOLAR SYSTEM

Can you name each planet correctly using the letters given in the table below?

A.地球 ______

B.木星 ______

C.火星 ______

D.水星 ________

E.海王星 _______

F. 冥王星 _______

G. 土星 ________

H. 天王星 _______

I. 金星 ________

Earth

Jupiter

Mars

Mercury

Neptune

Pluto

Saturn

Uranus

Venus

Sun VenusMercury

Mars Jupiter

Saturn

Earth

Pluto

Neptune

Uranus

SunSun EarthEarth

MoonMoon

The earth’s atmosphere

可以演化成低级生命的小液滴 ;水泡状的太空原始生命体

It was full of water.

海洋里的细胞开始分裂

登陆

爬行动物

恐龙

Mammals

人类的兴起

Do you know what it was like before life appeared on earth?

SkimmingRead the passage quickly and find out the answers to the questions below.• 1. What’s the main idea of the

text?• 2. How many parts can the text be

divided into?• What’s the main idea for each

part?

1. What’s the main idea of the text?

How life began on the earth.

2. How many parts can the text be divided into?

Two parts:

Part 1 (para 1)

Part 2 (para2.3.4)

Water made it possible for life begin to develop.

The development of living things.

Scanning• Read paragraph 1, and answer the

following questions.1. What was there on the earth before

life could begin? 2. Why was the earth different fromother planets?

Water vapour, carbon dioxide, oxygen, nitrogen and other gases.

Because water remained on the earth.

• 3.How did water come into being on the earth?

• 4. What is the significance of the presence of water on the earth?

The explosion of the earth produced water vapour, which turned into water when the earth cooled down.

It allowed the earth to dissolve harmful gases into oceans and seas.

• Read the second and third paragraphs and put the development of life in the chart.

1___________ 2_________

4.__________

5.__________

3___________

6.__________

7.__________8.__________9.__________

small plants in water

shellfish and all sorts of fish

green plants on landinsects (on land)

amphibian (on land and in water)

forests mammals (on land)

reptiles (on land) dinosaurs (on land)

Put the order of development of life into a time line.

A. insects and amphibians appear

B. a solid ball

C. reptiles appear

D. a cloud of dust

E. shellfish and other fish appear

F. dinosaurs appear

G. small plants grow on the water

H. plants begin to grow on dry land

I. presence of water

J. mammals (including humans )appear

D

B

I

G

E

H

A

C

F

J

After reading the passage, discuss the following questions.

1. Why is it wrong in films and stories to show dinosaurs and people together?

2. Why do you think that humans are the cleverest animals on the earth?

Discussion

1. Why is it wrong in films and stories to show dinosaurs and people together?

2.Why do you think that humans are the cleverest animals on the earth?

Dinosaurs died out long before human beings developed on the earth.

Because they have larger brains than any other creatures on the earth so far.

Discussion: Some scientists have found that there is water on Mars.

1.Can Mars become a little Earth?2. Then what are necessary factors?

Oral task---thinking&speaking (3m)

Life is a mystery to our human beings. Scientists study the origin of life by studying space.

1. Do you really think space flights are meaningful?

2. Discuss the advantages and disadvantages of space flights?

HOMEWORK