Unit 5 Revealing nature Understanding ideas 课件-2023-2024学年高二英语外研版（2019）选择性必修第一册

A Journey of Discovery Revealing nature -understanding ideas Book 4 Unit 5 Starting out Watch the video and answer the questions. Starting out 1 How can seeds travel? How can this benefit plants? 2 Can you think of another example of seeds travelling? Share it with the class. Seeds usually are carried by the wind, water, and animals. Plants can have a better chance at life. by the wind by water by animals Look at the evolutionary tree and answer the questions. Paramecium(草履虫), earthworm(蚯蚓), snail, crab, fish, tortoise, bird, horse, human, frog, algae(藻类), moss(苔藓), fern(蕨类植物), plant... The ever-changing environment of nature; environmental changes; population immigration; genetic mutation(突变)... 1 What species do you recognise in the picture? 2 What factors can cause the process of evolution? pre - reading British Biologist, Naturalist The founder of Theory of Evolution Published the Origin of Species Sailed around the world on the Beagle for five years Charles Robert Darwin 进化论 《物种起源》 pre - reading 小猎犬号 Read the passage and talk about your understanding of the title. A Journey of Discovery Choose the main idea of the passage and give your reasons. Darwin’s interest in various living things made him a great naturalist. Darwin’s journey on the Beagle inspired his Theory of Evolution. Darwin went on a journey to confirm his theory that humans had evolved over time. pre - reading Para 2-5 The structure The text is organized in order of______ . Para 1 Para 6-7 time Before the journey During the journey genre of the passage: After the journey narrative “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.” Para.1 句中的predicting ... 是现在分词作定语，修饰a letter predict vt. 预言 be a disgrace 是耻辱，是丢脸的事 并且在他刚收到的家书中，父亲预言他将会成为“自己和全家人的耻辱”。 Para.1 Para.2 Para.3 Para.4 Para.5 Para.6 Para.7 Introduction On his journey Generate ideas Look for more evidence Develop ide