Learning about Language教学设计一等奖

Unit 4 Astronomy: the science of the stars

Section 1: HOW LIFE BEGAN ON THE EARTH

Step 1 Pre-reading Get the Ss to look at the pictures . Then ask the Ss to share their stories wi. Encourage the Ss to tell different stories.

T: Now please look at the slide show. And discuss these questions with your partners. Then I’ll ask some students to tell us their stories. Are you clear?

Ss: Yes, Sir/Madam. 1. Do you know each religion or culture has its own ideas about the beginning of the universe? Please give an example if you know. 2. Do you know what a scientific idea is? After the Ss’ discussion, teacher says the following.

T: Now who’d like to tell us a story? Volunteer!

S1: Let me try. In China, we all know that Pangu separates the sky from the earth. T: Can you describe the story in details? S1: Sorry, I can’t remember clearly.

T: Who can? Nobody? Now I’ll tell you. Look at the screen.

Pangu separates the sky from the earth

The sky and the earth were at first one blurred entity like an egg. Pangu was born into it. The separation of the sky and the earth took 18,000 years- the Yang which was light and pure rose to become the sky, and the Yin which was heavy and murky sank to form the earth. Between them was Pangu, who went through nine changes every day, his wisdom, greater than that of the sky and his ability greater than that of the earth. Every day the sky rose ten feet higher, the earth became ten feet thicker, and Pangu grew ten feet taller. Another 18,000 years passed, and there was an extremely high sky, an extremely thick earth, and an extremely tall Pangu. Then came the Three Emperors (the Emperor of the Sky, the Emperor of the

Earth, and the Emperor of the Men.)

So these numbers came into existence and evolve like this. The number begins with one, becomes established at three, is completed at five, prospers at seven, and ends in nine. So the sky is ninety thousand li from the earth. Other legends about the beginning of universe The Biblical Account

“In the beginning God created the heavens and the earth. The earth was formless and empty, darkness was over the surface of the deep, and the spirit of God was hovering over the waters. And God said....”

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

T: Are they interesting? Though they are interesting, they are only legends. We should believe a scientific idea. What’s a scientific idea?

S2: It should be an idea coming from scientific theory. T: Quite right. Now we’ll come to Reading. That’s a scientific idea.

Step II

The first reading SKim the passage and analyse its structure. Write down the main idea for each paragraph. Para.1: A widely accepted theory about the formation of the universe Para 2: The formation of the earth Para.3: The importance of water for life Para.4: The development of plants and animals on the earth Para.5: The arrival of humans and their impact on the earth

Step III

The second reading Put the order of development of life into a timeline. Use the reading passage to

help you. 1 Insects and amphibians appeared. 2 Dinosaurs appeared.

3 The earth became a solid ball. 4 Small plants grew on the water. 5 Reptiles appeared. 6 Plants began to grow on dry land. 7 The earth was a cloud of dust. 8 Water appeared on the earth. 9 Shellfish and other fish appeared. 10 The universe began with a “Big Bang”. 11 Clever animals with hands and feet appeared. 12 Mammals appeared. Answer: 10

7

3

8

4

9

6

1

5

2

12

11 Step IV The third reading to find the stages of the life development Task 1 Three stages of the life development Stage 1: The

development of water Stage 2: The development of life in water Stage 3: The development of life on land Task 2

Finish the following form.

3 green plants on land 4insects(on land) 5 1 small plants in water 2

Key to the exercise: 2. shellfish and all sorts of fish

5.amphibian(on land and in water) 7. reptiles (on land)

8.dinosaurs(on land)

9.mammals(on land) T: That’s all for this passage. Now let’s deal with some language points.

Task 3 Passage Analyzing

Chart of the text How life began on the earth

4 insects(on land) 5 amphibians(on land and in

4 insects (on land) water) 5 amphibians (on land and in 6 forests 2 shellfish and all sorts of fish 3 green plants on land water 1 small plants in water 6 forests 7

8

9

water) 10. small clever animals with hands and feet

7 reptiles (on land) 8 dinosaurs (on land)

9 mammals (on land)

11. human Step VI

The third reading to find the stages of the life development The most important animals appeared,but they are not looking after the earth very well. What they did made the earth too hot to live on. So what can we do to protect our earth and make it a better place to live on? For example

1.collect waste batteries 2.Use less plastic bags

3.Don`t cut down trees ...... To ask studens to give more ideas Step Ⅵ Homework

1. Search the Internet for information of the development of life and find more solutions to global warming. 2. Finish the exercises on page 28.