Unit 3 Conservation Topic Talk 单词 课件 2025-2026学年高二英语北师大版选择性必修第一册

该高中英语课件为Unit3 Topic Talk词汇课，聚焦环保主题核心词汇，涵盖destroy、recycle、extinct等词的音标、词性、派生词、短语及例句。课堂从主题Talk切入，通过多样化练习题搭建学习支架，帮助学生实现词汇认知到语境运用的过渡。 其亮点在于词汇讲解系统且注重应用，结合语言能力培养（如例句仿写、填空练习）和思维品质提升（派生词逻辑辨析），例如destroy的名词形式填空、recycle的词性转换题。学生能夯实词汇基础并提升语境运用能力，教师可借助结构化资料高效开展教学。

Unit3 Topic Talk 词汇课 destroy vt. 破坏；摧毁； destroy one's confidence/hope 摧毁某人的信心/希望 → destructive adj. 破坏性的；引起破坏的 → destruction n．破坏，毁灭 Those rich countries have caused half of the world’s environmental ___________(destroy) while paying only 3% of its costs. e.g. There are several ways we destroy nature. destruction /dɪˈstrɔɪ/ item n. 一件商品；一则或一条 an item of 一项；一条；一则 单句写作：报纸上有一条关于他的新闻. e.g. We all need to reuse previously used items in order to protect our environment. an item of news about him on the newspaper There is _________________________________________ . /ˈaɪtəm/ recycle vi. & vt.再利用，回收利用 We package our products in ___________ (recycle) materials. e.g. We should recycle and reduce the amount of waste we produce. → recyclable adj.可回收利用的　 → unrecyclable adj.不可回收的 recyclable /ˌriːˈsaɪkl/ threat /θret/ n．威胁；(灾难等坏事)发生的可能 under threat 遭受威胁 a threat to 对……的威胁 → threaten vt. 威胁；恐吓；危及，威胁到； → threatening adj. 恐吓的，威胁的 He is unlikely to be ___________ the Spanish player in the field. e.g. The use of oil and coal is one of the biggest threats to our planet. a threat to 相信他不会在决赛中对这位西班牙运动员构成威胁. switch /swɪtʃ/ vi. & vt.转换，改变　 n. [C](电路的)开关；转换器；改变) 完成句子：She ____________ (打开) the bedside lamp and began to read a novel. switched on switch on＝turn on 打开，接通 switch off＝turn off 关上，把……关掉 switch over 转换频道，转变 We definitely need to switch to different forms of power as soon as possible. illegally /ɪˈliːɡəli/ adv.非法地，违法地 → illegal adj.非法的 → legal adj.合法的 It’ s _______ (legal) to read people’s private letters without permission. e.g. Many animals are illegally hunted for something they have. illegal hunt /hʌnt/ vi. & vt.猎取，猎杀　vi.搜寻　n．狩猎；搜寻 Weather permitting, we'll go __________this Sunday morning. e.g. The whole neighbourhood have been hunting for the missing child. hunting go hunting 去打猎 hunt for 搜寻，寻找 → hunter n．猎人；搜集某种东西的人 extinct /ɪkˈstɪŋkt/ adj.灭绝的，绝种的；消亡的；不再活跃的；死的 →extinction n．灭绝；消亡 Many species of plants and animals are in danger of ___________. e.g. How long do we have before rhinos become extinct？ be close to extinction 濒临灭绝 extinction urgent /ˈɜːdʒənt/ adj.紧急的，急迫的 →urge v．催促，力劝；竭力主张　 n．冲动 They’ve called on an __________(urge) meeting for this meeting. e.g. That's an incredibly urgent matter. It is urgent that + 从句【主语＋(should＋)动原＋其他】 极力主张 urgent $