Unit 5 Revealing nature Understanding ideas课件-2023-2024学年高中英语外研版选择性必修第一册

Unit 5 Revealing nature Starting Out & Understanding ideas 新标准《英语》高中选择性必修第一册 Activity 1 Look at the page from a science magazine and answer the questions. 1. What do you know about these animals? What makes them special? Komodo dragon: It evolved in Australia and spread westward … Duck-billed platypus: The oldest discovered fossil of it dates back to about 100,000 years ago … Nautilus: It often considered “living fossils” … They are all species that exit thousands of years on earth; They are old and rare (unusual). 2. What other similar animals do you know about? Share your knowledge with the class. Activity 2 1. How can seeds travel? How can this benefit plants? Seeds usually are carried by the wind, water, and animals. Plants can have a better chance at life. 2. Can you think of another example of seeds travelling? Share it with the class. • Dandelion seeds have little parachutes to catch the wind and go further; • Humans can spread seeds if seeds get stuck to their clothing or shoes. Watch the video and answer the questions. Activity 1 Look at the evolutionary tree and answer the questions. 1 What species do you recognise in the picture? Paramecium, earthworm, snail, crab, fish, tortoise, bird, horse, human, frog...; alga, moss, fern, plant... 2 What factors can cause the process of evolution? The ever-changing environment of nature; environmental changes; population immigration; genetic mutation; cultural preferences... Activity 2 Read the passage and talk about your understanding of the title. (Para 1)The captain of the ship, the Beagle, wanted someone who would “profit by the opportunity of visiting distant countries yet little known”. Q1: What does “who” refer to? Q2: Can “the opportunity of doing” be replaced by “the opportunity to do”? Q3: Who would be profited? A3: Someone. Because of “profit by/from”. Q4: Who was little known? What does “yet” mean? (Para 1)What’s more, he had recently received a letter from his father predicting that he would