【最新】人教新课标高中英语必修三课件:Unit4+Reading_图文

Unit 4 Unit4 Astronomy the science of the stars How Life Began on the Earth Quiz 1.Who wrote “The Origin of Species ” (物种起源)? A. Newton B. Einstein C. Charles Darwin 2.How many planets are there in the Solar System? A 7 B 8 C9 A. frog D. fish B. snake E. bird C. duck F. dog 3. Which one belongs to amphibian (两栖动物) ? A 4. Which one belongs to reptile (爬行动物)? B 5. Which one belongs to mammal(哺乳动物)? F 6. Which gas is the most important for life? A. carbon dioxide (CO2 ) B. oxygen (O2) C. nitrogen (N2) Read the passage quickly to find the main idea of each paragraph. Read the passage carefully and analyse its structure. Write down the main idea for each paragraph. Paragraph 1: Paragraph 2: Paragraph 3: Paragraph 4: Paragraph 5: Paragraph 1: A widely accepted theory about the formation of the universe Paragraph 2: The formation of the earth Paragraph 3: The importance of water for life Paragraph 4: The development of plants and animals on the earth Paragraph 5: The arrival of humans and their impact on the earth Skimming Reading Comprehension I 1. Who knows how life began on the earth exactly? A. Scientists. B. Astronomers. C. No one. D. Aliens (外星人). 2. What does “small clever animals” refer to? A. Insects. B. Reptiles. C. Dinosaurs. D. Humans. 3. The earth was different from the other planets in that__________. A. a cloud of dust was around the earth B. comfortable climate remained on the earth C. water remained on the earth D. carbon remained on the earth 4. The plants grew before the animals because they provide__________. A. nutrients for animals to absorb(吸收) B. oxygen for animals to breathe C. necessary temperature for animals to keep warm D. water vapour for animals 5. Which of the following statements is true? A. The dust settled into a solid globe between 4.5 and 3.6 billion year ago. B. The first small plants began to appear on the surface of the land. C. About 2.6 million years ago some small clever animals appeared and spread in the ocean. D. Dinosaurs died out long before human beings developed on the earth. scanning Reading Comprehension II Put the order of development of life into a timeline. Use the reading passage to help you. 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

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