人教版 高中英语必修三 Unit 4.pptVIP

Each religion and culture has its own ideas about how life began on earth. For example, in China, we all know that Pangu separates the sky from the earth. What else do you know? India Brahma is the god first represented in the Hindu Triad. He is the creator of the universe and all living beings are said to have evolved from him. Reading I. Read the passage carefully and match the main idea with each paragraph. Para. 1 The formation(形成) of the earth. Para. 2 The importance of water for life. Para. 3 A widely accepted theory about the formation of the universe. Para. 4 The arrival of humans and their impact on the earth. Para. 5 The development of plants and animals on the earth. Pre-discussion The origin of life on earth is a question that interests astronomers. Do you want to know more about it? Why is it unbelievable in films and stories to show dinosaurs and people together? Because dinosaurs died out long before human beings developed on the earth. What problem is caused by human beings? * Astronomy: the science of the stars Pangu separates the sky from the earth Other legends about the beginning of universe ▲Big Bang Gas New stars Dying stars remnants 平面图 IV. True (T) or False (F). 1. The earth appeared before the Big Bang happened. 2. The original atmosphere consisted of nitrogen and oxygen. 3. The main difference between the earth and other planets is that there is water on the earth. 4. Life began in water and then on land. F F T T 5. Mammals appeared before the development of dinosaurs. 6. Dinosaurs could give birth to young baby animals and produced milk to feed them. 7. Human beings produce too much carbon dioxide which causes the global warming on the earth. 8. According to the text, human beings would disappear in t