Unit 3 Conservation Topic Talk 重点单词课件-2023-2024学年高中英语北师大版（2019）选择性必修第一册

Unit 3 Topic Talk conservation /ˌkɒnsəˈveɪʃ(ə)n/ n. 保护 ① Environmental conservation has been a hot topic in recent years. conserve v. 保护 ② If we try our best to recycle the wastes, we can reduce pollution and conserve natural resources. destroy /dɪˈstrɔɪ/ v. 破坏；毁掉 destruction n. 破坏，摧毁 destructive adj. 破坏性的 ① In the earthquake that happened on 3 August 2014, all the houses and buildings were destroyed, and great damage was caused to Yunnan. At that time Ludian was almost in ruins. ② Many animals will be in danger because of the destruction of the environment. plastic /ˈplæstɪk/ adj. 塑料制的 e.g. Single-use plastics are one of the world's biggest sources of plastic pollution. n. 塑料 mining /ˈmaɪnɪŋ/ n. 采矿业 coal/diamond/gold mining e.g. They were mining for gold. mine v. 采矿 n.矿山，矿井 item /ˈaɪtəm/ n. 一项，一条 n. 物品 an item of news/a news item e.g. We carefully labelled each item with the contents and the date. recycle /ˌriːˈsaɪkl/ v. 再回收；回收利用 e.g. Plastic bags cause the deaths of 100,000 marine animals each year because the animals mistake them for food. So if you must use them, always recycle them. informative /ɪnˈfɔːmətɪv/ adj. 有教育意义的；知识性强的 e.g. I found the talk both informative and entertaining. threat /θret/ n. 威胁 e.g. After the lecture, I can see that the use of oil and coal is one of the biggest threats to our planet. threaten v. 威胁 threatening adj. 带威胁的，恐吓的 threatened adj. 受到威胁的 ① Wildlife has been greatly _________ (threat) in the modern age. ② Floating ice around Iceland was becoming a threat ________ navigation(航运). ③ Some cultures see direct eye contact as impolite or _________ (threaten) behavior, while Americans see it as a sign of honesty. threatened to threatening switch /swɪtʃ/ v. 转换，改变 a light switch a policy switch n. 转换，改变 n. 开关 ② Not only is biking good exercise, but switching from a car to a bike also reduces the amount of pollution in the air. ① There is a switch on the wall for turning on the lights. ③Lucy got home fr