Unit 1 Saving the Earth 单元讲义 2023-2024学年牛津上海版（试用本）九年级英语下册

Unit 1 Saving the Earth I.词汇与词组学习 1) green consumer: 绿色消费者 consumer: (解释)a person who buys or uses something, customer （词性转换）v: consume adj.consumable（可消费的） n.consumption（消费） （例句）The consumers complained about the poor quality of the electronic products. 2) situation 情况，状况 （例句）I’m afraid the situation is very serious. 3) in danger: 处于危险中 danger: 危险 （词性转换）adj: dangerous 词语拓展：out of the danger 脱离危险 4) vital: 致命的，重要的 (解释) essential, very important （词性转换）adv: vitally （例句）1. It’s vital that we do something to save the earth. 2. Oxygen is vital for life. 5) save the earth: 拯救地球 save: 拯救，搭救 （词性转换）adj: safe n: safety adv: safely 6) first of all: 首先 （例句）First of all, let’s invite Mr Wilson to give us a speech. 7) threat: 危险，危害，威胁 (解释)danger （词性转换）v: threaten威胁, 恐吓 常用搭配：the threats to 对于......的威胁 （例句）1. The threat of war has depressed business activity. 2. He took no notice of his father’s threat. 3. What are the threats to the environment? 4. Corruption and crime are serious threats to any society. 8) environment: 环境 (解释)the natural world around us, surrounding (例句）If we destroy our environment, we will destroy ourselves. 9) the Greenhouse Effect 温室效应 10)imagine: 想象，设想 (解释)make a picture of something in your mind (词性转换）n: imagination （例句）1. He imagines that people don’t believe him. 2. I can’t imagine what he looks like. 11)atmosphere: 大气 (解释)the mixture of gases which are around the earth （例句）1.The rocket went up through the atmosphere and into space. 2. The atmosphere covers the whole earth. 12)act: 生效，发生作用 (解释)do sth. or behave in a certain way （词性转换）n:action, actor, actress adj: active （例句）Does the drug take long to act? 13)keep…from: 阻止…做某事 （例句）She tried to keep me from seeing the letter. 同义词组：stop...from doing sth. prevent...