高中英语Unit4 reading人教新课标必修3.ppt

Unit 4 Astronomy: the science of the starsMercury 水星水星Venus金星金星 Earth地球地球Mars火星火星Jupiter木星木星Saturn土星土星Uranus天王星天王星Neptune海王星海王星The Earth is the cradle of our human life.What’s the difference between the earth and other planets？？How did the earth form?How life began on the earthREAD THE TEXT QUICKLY AND WRITE DOWN THE MAIN IDEA FOR EACH PARAGRAPH. CHECK YOUR ANSWERS IN GROUPS .While-readingGroup workMain BodyParagraph 1:Paragraph 2:Paragraph 3:Paragraph 4:Paragraph 5:A widely accepted theory about the formation of the universeThe formation of the earthThe importance of water for lifeThe development of plants and animals on the earthThe arrival of humans and their impact on the earth•Read paragraph 2 to 4 carefully and try to fill in the key words by looking at the pictures. You can discuss in groups.Group workBig BangA solid globeAtmosphere The earthA cloud of dust•Para 2: The formation of the earth :waterPlants in the waterShellfish and fishPlants on landPara3-4 the formation of lifeInsects and amphibiansReptiles Dinosaurs Mammals Man had evolved from apes. •Read 5th paragraphWhile-readingWork in pairs. Put the order of development of life into a timeline first according to your common sense, and then according to the reading passage and the pictures.1. Insects and amphibians appeared.3. The earth became a solid ball.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.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.10 7 3 8 4 9 6 1 5 2 12 11While-reading1.Think about what you have read and make choices. You can discuss with your partners.Why was the earth different from other planets?A It produced a lot of heat. B. The water remained on the earth.C Water disappeared. D. It was the oldest planet.Why did the plants grow before the animals came?A. Animals needed plants to protect them from the sun. B. Plants provided oxygen for animals to breathe.C. Animals could hide from hunters in forest.D. It was easier for plants to grow.What problem is caused by human beings?A They exist everywhere on the earth.B They cause global warming.C They find new methods of growing crops.D They enjoy hunting and fishing.2. DISCUSS AND ANSWER 2. DISCUSS AND ANSWER THESE QUESTIONS IN THESE QUESTIONS IN GROUPS.GROUPS. 1. Why is it wrong to show films with dinosaurs and people together? Because dinosaurs died out long before human beings developed on the earth.2. There used to be nine planets in the solar system. Recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of that planet? Do you know why they removed it? The name is Pluto. Scientists now think it is too small to be called a planet. Which words, phrases, structures, or sentences are difficult for you to understand? Underline them and discuss in groups.  Read the last paragraph and think the following questions.1).What problems have been caused by humans to the earth? 2).How to protect the earth and make it a better place to live on?Search the Internet for the information of Protecting the earth and design an activity on Earth Day What the activity is about ? Why the activity is designed? When and where to do the activity ? Who takes part in the activity? What to be done in the activity?HOMEWORK•Write a short passage about how to save our earth, according to the activity above.•1.it’s necessary to save the earth.•2.how to save the earth.•3.summary。