(
课件网) Unit 5 Revealing nature A Journey of Discovery 1. Use predicting, skimming for detail and scanning for specific information to comprehend the reading materials. 2. Use different methods to search related information and compare them. 3. Conclude the reading material. Process (success) objectives Product (success) objectives 1. Obtain the information by using reading skills. 2. Think and analyze the reading material through studying the style and writing skills. 3. Develop the awareness of scientific exploring. What do you know about the man and share your knowledge with the class. Charles Robert Darwin(1809-1882) was an English geologist and naturalist. In his famous book On the Origin of Species, Darwin proposed the theory that organisms (individual life forms) evolve extremely slowly. He stated that the organisms that were better suited to their environments would survive and pass on their favourable characteristics to the next generation, while the less suitable organisms would gradually die out. He called this process “natural selection”. 1. the loss of other people's respect and approval because of the bad way sb. has behaved 2. a small part of something intended as representative of the whole 3. the hard pointed part of a bird's mouth 4. a scientist who studies geology disgrace sample beak geologist Match the words in the box with the definitions. answer the call disgrace sample finch beak geologist suspect generate decline 5. respond the call 6. small bird with a short beak 7. to produce or create sth. 8. a continuous decrease in the number, value, quality, etc. of sth. 9. to think or believe something to be true or probable finch generate decline suspect answer the call answer the call disgrace sample finch beak geologist suspect generate decline Observe the picture and think about the questions: 1. What is the name of the tree 2. What is evolution 3. Can you tell us the direction of evolution 1. What species do you recognize in the picture 2. What factors can cause the process of evolution Paramecium, earthworm, snail, crab, fish, tortoise, bird, horse, human, frog, algae, moss, fern… Look at the evolutionary tree and answer the questions. The ever-changing environment of nature; environmental changes; population immigration; genetic mutation; cultural preference… Predict the main idea of the text according to the picture and the title. A Journey of Discovery The passage is mainly about how Darwin’s Theory of Evolution generated and developed on his journey. The captain of the ship, the Beagle, wanted someone who would "profit by the opportunity of visiting distant countries yet little known". The person who answered the call was not the captain's first choice. It was a young man who had left medical school without completing his degree. What's more, he had recently receiveda letter from his father predicting that he would be "a disgrace to yourself and all your family ... ...
