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Unit 4: Astronomy Reading : How Life Began On the Earth

Unit 4: Astronomy Reading : How Life Began On the Earth. What have you seen in the video?. simple cells. shellfish. amphibian(s). mammal (s). human (s). reptile (s) . Each religion and culture has its own ideas about how life began on earth. What ideas do you know?.

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Unit 4: Astronomy Reading : How Life Began On the Earth

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  1. Unit 4: Astronomy Reading : How Life Began On the Earth

  2. What have you seen in the video? simple cells shellfish amphibian(s) mammal (s) human (s) reptile (s)

  3. Each religion and culture has its own ideas about how life began on earth. What ideas do you know?

  4. Ideas about how life began on the earth Idea 1: Pangu created the world. Idea 2: Nuwa made human beings. Idea 3: God created the world.

  5. How Life Began on the Earth Prediction: the formation of the earth the evolution of life

  6. What’s the writing style of the passage? A.narrative writing (记叙文） B.expository writing (说明文） C.argumentative writing （议论文） D.news report

  7. Skimming: main idea? part 1 (Para 1) theformationof the universe part 2 (Para 2,3,4) the development of life (Para 5) part 3 the impact of human beings on the earth

  8. Scanning: C The universe began with__________. The earth began with__________. A • a cloud of dust • small plants • a Big Bang • dinosaurs

  9. Read from the illustration(插图） Did life appear on land or in the water first? Why? line19: Itwas not immediately obvious that water was to be fundamental to the development of life.

  10. How did plants and animals develop?para4, 5 animals plants first next shellfish and all sorts of fish small plants in water later insects green plants on land amphibians reptiles forests dinosaurs after that mammals humans finally

  11. Reading for speaking: M: Hi,Tom. I’m really confused about the development of life. What appeared first? T:Well. It’s small plants that appeared first . M:Why was that? T:They can produce oxygen, which… M:Next, what plants began to grow? T: … M:Later, when… T:… M:After that,… T:… M: Finally… T:…

  12. Discussion: The impact of human beings on the earth: nuclear pollution global warming

  13. report • According to the following linking words to give a report and the impact of human being on the earth. • first, next, later, after that, before long, • finally, in a word.

  14. Save the earth!

  15. Homework 1. Finish Ex.4 on P27 on Student’s book. 2. Go over the passage and pick out useful words and phrases .

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