Unit 5 Revealing nature Understanding ideas 课件-2024-2025学年高中英语外研版（2019）选择性必修第一册

Unit 5 Revealing nature What species do you recognise in the picture? What is this picture about? evolution A Journey of discovery 1.To grasp the main idea of the passage by skimming and scanning. 2.To collect more details about Darwin's journey and learn to introduce this journey. 3.To learn the spirit of scientific exploration and apply it to our life and studies. Learning objectives Choose the main idea of the passage and give your reasons. 1). Darwin’s interest in various living things made him a great naturalist. 2). Darwin’s journey on the Beagle inspired his Theory of Evolution. 3). Darwin went on a journey to confirm his theory that humans had evolved over time. Read for main idea A Journey of Discovery ? A Journey of Discovery This title means: 1)His journey on the ship,the beagle 2)His journey to propose the theory of evolution Q1:Why didn't the captain of the Beagle think Darwin was the best choice? Because that 1)Darwin had left medical school without completing his degree 2)He had recently received a letter from his father predicting that he would be “a disgrace to yourself and all your family” Q2:Why were many people “ shocked” by Darwin’s theory? Read for details Why didn't the captain of the Beagle think Darwin was the best choice? A.Because Darwin wasn't admitted to university. B.Because Darwin left school without completing his degree. C.Because Darwin brought shame to himself and his family. D.Because Darwin had not enough interest in visiting distant countries. It was a young man who had left medical school without completing his degree.What's more, he had recently received a letter from his father predicting that he would be “a disgrace to yourself and all your family” Q1:Why didn't the captain of the Beagle think Darwin was the best choice? Because Darwin had left medical school without completing his degree and he had recently received a letter from his father predicting that be would be “a disgrace to youself and all you family” Q2:Why were many people “ shocked” by Darwin’s theory? Because at that time people believed all species had appeared on Earth at the same time and had not changed since,but Darwin's theory proposed that living things ,including humans,had evolved from lower forms of life. Read for details ( )ON HIS JOURNEY Darwin studied_________________ He noticed that some species of animals were___________ ( )PROPOSE A THEORY The Theory of Evolution: living things, including humans, _________________ ( )DEVELOP IDEAS Darwin suspected that the finches___________ and it had_____________ ( )LOOK FOR MORE EVIDENCE On the Galápagos Islands He noticed________________ It seemed the beaks_________ ( )GENERATE IDEAS Darwin asked the questions: How did different species ___________________? ____________________________ ON HIS JOURNEY Darwin studied __________ _________________________ He noticed that some species of animals were ___________ _________________________ GENERATE IDEAS Darwin asked the questions: How did different species ________________________ _______________________ ________________________ LOOK FOR MORE EVIDENCE On the Galápagos Islands He noticed ________________ __________________________ It seemed the beaks _________ DEVELOP IDEAS Darwin suspected that the finches___ and it had________ PROPOSE A THEORY The Theory of Evolution: living things, including human,________________ ———————— various living things...and samples of.. very similar to each other come to exits? Maybe animals evolved as they adapted to... that there was a difference betwween the finches on ... had evolved ... had evolved from.. slowly evolved into many new species had evolved from lower forms of life Read for thinking Q1:How did the author organize the passage? By the order of time Q2:What kind of person was Darwin according to the passage? determined ; had strong curiosity and interest in science; good at thinking;had perseverance Question: What have you learnt about the spirit of scientific exploration? How can this spirit help you in your life and studies? Read beyond the text We should : dare to doubt something come to a conclusion based on facts and observation keep a strict attitude stick to our goal when faced with difficulties. Introduce the journey of Darwin's discovery 1) Introduce the journey of discovery 2)A role play: Suppose you have a chance to have a talk with Darwin across time and space.Talk with him about his discovery of the theory of evolution. 3)Make up a dialogue by yourselves. 3 choices for you： ON HIS JOURNEY Darwin studied_____ He noticed that some species of animals were___________ GENERATE IDEAS Darwin asked the questions: How did different species ___________________? ________________________ LOOK FOR MORE EVIDENCE On the Galápagos Islands He noticed________________ It seemed the beaks_________ DEVELOP IDEAS Darwin suspected that the finches___ and it had________ PROPOSE A THEORY The Theory of Evolution: living things, including human,________________ Introduce the journey of Darwin's journey Homework 1）Summarize what you have learned from Darwin's journey of discovery. 2）Read the extended reading material Multimedia Cloud Transcode (cloud.baidu.com) Content Adaptive Encoding 3.0 $$