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視頻標簽：Astronomy,the science
所屬欄目：高中英語優質課視頻
視頻課題：人教版選修九Book 9 Unit 4 Astronomy the science of the stars Reading How life began on the earth建設兵團省級優課
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高中英語人教版選修九Book 9 Unit 4 Astronomy the science of the stars Reading How life began on the earth建設兵團省級優課
學案主題: Unit 4 Astronomy: the science of the stars Reading How life began on the earth 目標確定的依據
1、課程標準（考綱）相關要求
英語課程內容是發展學生英語學科核心素養的基礎，包含六個要素：主題語境、語篇類型、語言知識、文化知識、語言技能和學習策略。其中，主題語境涵蓋人與自我、人與社會和人與自然，涉及人文社會科學和自然科學領域等內容。語篇類型包括口頭和書面語篇以及不同的文體形式，如記敘文、說明文議論文等。 2、教材分析
本單元的中心話題是“天文學”，內容涉及太陽系、地球上生命的起源、宇宙大爆炸、月球探秘、黑洞效應等。Reading部分題材是說明文，主要內容是圍繞地球上生命的起源展開的，是本單元的亮點，講述了地球上生命的起源和生物進化的過程。 3、學情分析
這個單元由于涉及到天文學知識，文科班學生們可能對宇宙形成、地球演變、生物進化等方面的知識有部分了解，但是學生們可能對這方面的詞匯不是很熟悉，有可能造成討論和閱讀障礙。 學習目標
1、了解地球上生命的起源和進化過程； 2、訓練學生的快讀、尋讀、精讀等閱讀技巧；
3、激發學生從英語角度對天文學知識的興趣，培養其科學探索精神； 4、培養學生愛護環境、保護地球的強烈意識。
2019年“青藍杯”青年教師能力大賽課學案
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評價任務
1、通過fast reading 、careful reading部分習題，分析問題、解決問題，從而可以培養學生的閱讀技能。
2、通過閱讀天文學和地球上生命的起源等相關知識，進行關于保護地球的討論，培養學生樹立人與自然和諧共處和保護環境、愛護地球的觀念。 教學過程
環節 教師活動
學生活動 評價要點
Step 1 Warming up ( 6 minutes ) 1.Show the solar system
2. Ask students some ideas about how life began.
3. Watch a video.
Step 2 Fast reading ( 8 minutes )
1.What is the sequence(順序) of description of the passage? A. Time sequence B. Space sequence C. Logical sequence
1. Tell the Eight planets in English.
2. Pangu separated the sky from the earth.
Nuwa (女媧) made human beings. God
created
the world and all living things.
Key: A
These activities can increase
students’
interests as well as lead in the new
lesson.
Read the passage quickly to get the general idea of the text.
Improve students’ fast reading ability
2019年“青藍杯”青年教師能力大賽課學案
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2. What’s the writing style of the text?
A. Explanation 說明文 B. Narrative 記敘文 C. Essay 散文 D. Novel 小說
3. The text may tell us the ___________ of the earth and the ___________ of life on it. Step 3 Careful reading
（16 minutes）
Match the main idea for each paragraph. Para.1 Para.2 Para.3 Para.4 Para.5
Choose the best answer.
1.Why was life able to develop on the earth but not on other planets?
2. Why was it necessary for plants to grow before animals?
Key: A
Keys: formation development
A theory about how the universe was formed.
The formation(形成) of the earth. The
importance
of water for life.
The development of plants and animals.
The arrival of humans and their effects on the earth Keys: C B D B
1. The water stayed on the earth but not on other planets.
2. Plants
provided oxygen for animals to
Read the
text
carefully.
Learn more details
and then get the
careful reading
skills.
2019年“青藍杯”青年教師能力大賽課學案
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3. It can be inferred from the text that ___.
4. How long did dinosaurs exist on the earth___.
Part 1: The development of the earth Part 2: The development of life Step 4 Summary ( 5 minutes )
According to the passage, put the following statements in right order.
1. Insects and amphibians appeared. 3. The earth became a solid globe. 5. Reptiles appeared.
7. The earth was a cloud of dust. 9. Shellfish and other fish appeared.
11. Clever animals with hands and feet appeared
Step 5 Discussion ( 5 minutes )
The Earth Day is coming. What can we do to protect the earth?
breathe. 3. plants played an important part in the appearance of
the animals
4. More than 140 million years
Answer questions.
2. Dinosaurs appeared.
4.Small plants grew on the water.
6. Plants began to grow on dry land. 8. Water appeared on the earth.
10. The universe began with a “Big Bang”.
12.Mammals appeared.
Group discussion.
We should… We shouldn’t… We’d better…
Retell the passage,
in this way students can understand the
text better. Encourage students to
have
the awareness of
environmental protection.
2019年“青藍杯”青年教師能力大賽課學案
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Homework: What would you advise humans to do to protect our earth ? Write a letter.
板書設計
Unit 4 Astronomy: the science of the stars Reading How life began on the earth Main idea:
Para.1 April 22 Para.2 The formation of the earth. The Earth Day Para.3
Para.4 The development of life. Para.5
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