Unit 5 A delicate world Starting out & Understanding ideas课文详解课件-2023-2024学年高中英语外研版选择性必修第二册

Unit 5 A delicate world Starting out & Understanding ideas Aral Sea 咸海 2. Look at the satellite images and answer the questions. 1) What is happening to the area according to the satellite images? 2) What do you think a later satellite image would show? 3) What do you think caused these changes? The water area is shrinking. The water area will be smaller. Perhaps because of human over-exploitation. Starting out Watch the video and answer the questions. 1) Are humans part of Earth’s ecosystems? Why? It’s vital for our human beings to take action to protect our Earth. Yes! Humans are part of Earth’s ecosystem. We should be in harmony with our environment. Q: What can we do to protect our environmrnt? plant more plants collect waste paper or other waste things for recycling prevent those factories from pouring waste water into rivers,lakes and fields. mustn’t pick the flowers or step on the grass in public the government should let people fully realize the importance of environment protection through education reduce the use of plastic bags reduce the use of electrical appliances less open car to work or travel. Understanding Ideas 7 Macquarie Island lies in the South-west Pacific Ocean, halfway between Australia and Antarctica. Its native inhabitants encountered challenges. Human intervention led to the erosion of the original habitat, cased chaos and destroyed the ecology dramatically. What animals can you see in the picture? What kind of changes would take place if cats, rats and rabbits were introduced to an environment like this? 译：强风和惊涛骇浪将海岛塑造成现在狭长的形状。 译：这座岛是联合国教科文组织确立的世界遗产，游客们都认为其名副其实。 译：他们也不难想象出，数千年来，包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。 a different story 另一回事 a long story 说来话长 adv. 不知不觉地 take over 接管 develop an appetite/ taste/ interset/ for 开始对...有胃口/兴趣 be introduced to 被引入 loose a. 不受束缚的，松动的 soil erosion 土壤侵蚀 译：由于在岛上放任其生存，兔子做了自己最擅长的事----飞快繁殖。 爆炸式增长的兔子数量 plentiful a. 大量的 plenty of in turn 反过来 official nature reserve 官方自然保护区 6(v.)1(it)2(