Unit 1 Nature in the balance Welcome to the unit & Reading 课件-2023-2024学年高中英语牛津译林版（2020）必修第三册

Unit 1 Nature in the balance Welcome to the unit & Reading 1 Vocabulary 2 1. harm do harm to sb = do sb harm损害某人;对某人有害 harmful adj.有害的 be harmful to... 对……有害 harmless adj.无害的 练习：The gases given off by the factory contain a poisonous substance that is _________ (harm) to people's health. harmful 3 2. variety a variety of=varieties of各种各样的；不同种类的 vary vi.（大小、形状等）相异，不同 vary from...to... 由……到……变化 various adj.各种各样的；不同的 练习：Following a particularly large amount of rainfall earlier, a ________ (vary) of flowers come into blossom. variety 4 3. mass a mass of/masses of大量的……（既可修饰可数名词，也可修饰不可数名词） the masses群众；平民百姓 the mass of大多数；多数 mass production/unemployment批量生产/大批失业 massive adj.巨大的；非常严重的 练习：The _________ of people in that country is Christians. mass 5 4. living make a living谋生 earn a/one's living 谋生 everyday living日常生活 the cost of living生活开销，生活费 living standards/conditions生活水平/条件 练习：A drop of water seen through microscope is filled with _________ (live) things. living 6 5.survive survive(from) sth. 幸免于……；从……中活过来 A survive B (by…) A 比 B活得长（……） survive on 靠……生存下来 survival n.幸存；生还；残存物 survivor n.幸存者 练习：If he couldn't find his way out of the forest, there would be little chance of ________ (survive). survival 7 6. build up build sth.up 创建；开发 build up one's strength 恢复体力 build sb.up 增强体质 build up one's vocabulary 增加词汇量 练习：Traffic is ________ on roads into the city. building 8 Lead-in 9 Let’s listen to the song, and think about what the English song is about? The earth, environment, pollution, nature…. 10 1. What are the rhyming words in this song? harm/alarm; seas/trees; clean/green; above/love; pollution/solution THINKING 11 2. How do you understand "harm" and "alarm" in this song? "Harm" means something bad we have done to the Earth, including polluting soils and seas, cutting down too many trees, etc. "Alarm" means the signal that warns us of the dangers of environmental damage, which urges us to find a solution to this problem. 12 The Earth is our only home. Listen to the s