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高一英语必修3第4单元一课时导学案

[10-20 00:27:49]   来源：http://www.kmf8.com  高一英语教案   阅读：8788次
概要： 【摘要】“高一英语必修3第4单元一课时导学案”本文给大家带来了高一英语导学案，希望给大家的教学带来帮助：Learning aims1. Learn about the origin and development of life on earth.2. Master the new words and expressions in the reading passage.课前预习Find out some knowledge about astronomy before classWarming UpThink about these questions and then discuss them with your partner.1. In our solar system eight planets circle around the sun. What are they? Can you match the names with the planets? (pictures on page 25)2. What interests y
高一英语必修3第4单元一课时导学案,标签：高一英语教案模板,http://www.kmf8.com

【摘要】“高一英语必修3第4单元一课时导学案”本文给大家带来了高一英语导学案，希望给大家的教学带来帮助：

Learning aims

1. Learn about the origin and development of life on earth.

2. Master the new words and expressions in the reading passage.

课前预习

Find out some knowledge about astronomy before class

Warming Up

Think about these questions and then discuss them with your partner.

1. In our solar system eight planets circle around the sun. What are they? Can you match the names with the planets? (pictures on page 25)

2. What interests you in astronomy? Do you know any questions that astronomers are interested in?

课堂阅读

Task1. Pre-reading

1. The origin of life on earth is a question that interests astronomers. What do you know about it?

2. Earth religion and culture has its own ideas about how life began on the earth. What do you know?

3. Read the title and look at the pictures. Predict what the reading will be about. Then read it quickly to check if you are right.

Task2. Skimming

Skim over the passage and find the main idea of each paragraph. ( Match the main idea of each paragraph.)

Paragraph 1: a. The importance of water for life

Paragraph 2: b.The development of plants and animals on the earth

Paragraph 3: c.The formation of the earth

Paragraph 4: d.A widely accepted theory about the formation of the universe

Paragraph 5: e. The arrival of humans and their impact on the earth

Task3. Skipping

Put the order of development of life into a timeline.

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.

Task4. Detailed reading

Para1:

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1. How did the earth begin?

Para2:

1. What appeared after the ‘Big Bang”?

2. What is more important?

Para3:

1. Why was the earth different from the other planets?

Para4:

1. Why did the plants grow before the animals came?

2. Why is it wrong to show films with dinosaurs and people together?

Para5:

1. What does the “small clever animals with hands and feet” refer to?

2. What problem is caused by these animals?

随堂检测

Task1. Finish the chart using the phrases below :

1. ____________ → 2. ____________

3. ____________ → 4. ____________

5. ____________

6. ____________ → 7. ____________

8. ____________

9. ____________

A: small plants in water B: shellfish and all sorts of fish

C: green plants on land D: insects(on land)

E: amphibians(on land and in water) F: forests

G: reptiles(on land) H: dinosaurs(on land)

I: mammals(on land)

Task2. Retell the passage.

After the “Big Bang”, the earth was just a cloud of dust. It exploded with the fire and rock, which 1.___________produced water vapour and all kinds of gases and formed the earth’s 2.______________.

As the earth 3._______________, water began to appear on its surface. Water staying on the earth allowed the earth to 4.___________harmful gases into the oceans and seas. That made it possible for life to develop.

Later small plants began to grow. They 5.____________and filled the oceans and seas with oxygen, which encouraged the development of early shellfish and all sorts of fish.

Later the first green plants appeared on land, followed by land animals. When dinosaurs disappeared, mammals became more important. They gave 6.__________to their babies.

Small clever animals, now spread all over the earth. But they are not taking good care of the earth. The earth may become 7._________hot for the lives to live on, because they are putting too much carbon dioxide into the atmosphere, which 8.__________heat 9.__________escaping from the earth into space. Whether life will continue will 10._____________ whether this problem can be solved.

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