Unit3 Conservation Lesson 1 The Sixth Extinction 课件-2023-2024学年高中英语北师大版（2019）选择性必修第一册

Unit 3 Conservation Topic Talk Watch the video and answer the questions. Warming-up Watch the video How many types of Pollution is mentioned? Warming-up Farm What is extinction? Extinction is a situation in which something no longer exists. Para. 1: Para. 2: Para. 3: Para. 4: Background history of the sixth extinction Causes of the sixth extinction Effects of the sixth extinction What we can do to prevent the sixth extinction Get the main idea of each paragraph. Read and explore entire species are wiped out over 90% of all species that ever lived the third mass extinction, killed 90% to 96% of all species; the fifth event, which occurred 66 million years ago, caused the death of the dinosaurs Volcano eruptions, asteroids hitting the Earth from space, changes in sea levels, the decrease of oxygen content of the sea, global warming Change the way we live, including setting up special areas where plants and animals can be protected … 7 Focus on word choices Match the adjectives and nouns to make meaningful expressions. Match the adjectives and nouns to make meaningful expressions. entire endangered significant natural mass solar change resources extinction species energy animals Here I have some nouns and adjectives. Match the adjectives and nouns to make meaningful expressions and feel the magic function of adjectives. Have you got your answers? Let’s check them together. entire species, endangered animals, significant change, natural resources, mass extinction, and solar energy. Obviously, after we add adjectives before the nouns, the meaning of them are more accurate and vivid. Now another task for you. Focus on word choices 1. Climate change is happening right now. It is the most urgent threat facing our entire species and we should work together to stop the trend. 2. Many natural parks have been built to protect endangered animals. 3. We should make significant changes about the way we live. Use each expression to make a sentence.