广东广雅学校高一下学期英语人教版必修3《Unit4Astronomythescienceofthestars》教案(2)
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2. To enableSs to concern about the future of life on the earth.
Step 1. Pre-reading
Purpose:To arouse Ss’interest in learning about some relative information about the universe.
Suggested Answers:
①Small plants in water②Shellfish and all sorts of fish③Green plan ts on land
④Insects(on land)⑤Amphibians(on land and in water)⑥forests⑦reptiles(on land)
1.Show some pictures to the class and encourage Ss to say some information about how life began on the earth. They can say some relative legends, folk tales or scientific theories about the tope main idea ofthetext is the title — How life began on the earth.
2. Ask Ss to work in pairs and discuss the questions of Ex1 on P27. And then let them check the answers in pairs.
⑧dinosaurs(on land)⑨mammals(on land)⑩human beings
Step 2. Fast reading
Purpose :To get the gist of the passa ge.
To correctlyunderstandsome information given in the text.
1. Ask Ss to read the text quickly and try to get the main idea ofthetext.
●Pan Gu turns intoa myriad of(各种) things盘古化生万物
●Pan Gu separates the sky from the earth盘古开天地
●Nu Wa makes men 女娲造人
Conclusion and Leading-in:
But these ideas are al l not the correct and scientific ideas. Do you know the scientific idea of the development of the life on the earth? Then we’d better come to the text.
Period 2Pre-reading,Reading& Comprehending
Teaching Goals:
1. T o enableSs to better understandthetheory about the origin of the universe and life on the earth—the “b ig band” theory.
•What made up the earth ’s atmosphere after the earth exploded?
•How did water come into being on the earth?
•What was important to the development of fish?
Step 3. Intensive reading
Purpose:to get the students to learn the details of the text.
(1) Answer the questions:
•When did the “Big Bang” happen?
•What form was the earth the“Big Bang”?
•What made possible the rise of mammals on the earth?
•W hy are mammals different from all life forms in the past?
（2）Fill in the chart about the order of development of life.
The solar system is made up of the sun and the objects that orbit it.
The earth’s atmosphere
Fo r reference:
Some ideas about the beginning of the universe:
Step 1. Pre-reading
Purpose:To arouse Ss’interest in learning about some relative information about the universe.
Suggested Answers:
①Small plants in water②Shellfish and all sorts of fish③Green plan ts on land
④Insects(on land)⑤Amphibians(on land and in water)⑥forests⑦reptiles(on land)
1.Show some pictures to the class and encourage Ss to say some information about how life began on the earth. They can say some relative legends, folk tales or scientific theories about the tope main idea ofthetext is the title — How life began on the earth.
2. Ask Ss to work in pairs and discuss the questions of Ex1 on P27. And then let them check the answers in pairs.
⑧dinosaurs(on land)⑨mammals(on land)⑩human beings
Step 2. Fast reading
Purpose :To get the gist of the passa ge.
To correctlyunderstandsome information given in the text.
1. Ask Ss to read the text quickly and try to get the main idea ofthetext.
●Pan Gu turns intoa myriad of(各种) things盘古化生万物
●Pan Gu separates the sky from the earth盘古开天地
●Nu Wa makes men 女娲造人
Conclusion and Leading-in:
But these ideas are al l not the correct and scientific ideas. Do you know the scientific idea of the development of the life on the earth? Then we’d better come to the text.
Period 2Pre-reading,Reading& Comprehending
Teaching Goals:
1. T o enableSs to better understandthetheory about the origin of the universe and life on the earth—the “b ig band” theory.
•What made up the earth ’s atmosphere after the earth exploded?
•How did water come into being on the earth?
•What was important to the development of fish?
Step 3. Intensive reading
Purpose:to get the students to learn the details of the text.
(1) Answer the questions:
•When did the “Big Bang” happen?
•What form was the earth the“Big Bang”?
•What made possible the rise of mammals on the earth?
•W hy are mammals different from all life forms in the past?
（2）Fill in the chart about the order of development of life.
The solar system is made up of the sun and the objects that orbit it.
The earth’s atmosphere
Fo r reference:
Some ideas about the beginning of the universe: