Unit 5 第3课时 Learning Key Words & Expressions-（课件）2022-2023学年新教材高中英语选择性必修第一册【南方凤凰台·5A新学案】人教版

Unit 5　Working the Land 第3课时　Learning Key Words & Expressions 第1页 Unit 5　Working the Land 5A新学案 英语 · 选择性必修第一册 核心词汇 extension /ɪk'stenʃn/ n. 扩建部分；扩大；电话分机 1 extension be extended chemical /'kemɪkl/ adj. 与化学有关的；化学的 n. 化学制品；化学品 2 chemicals chemical chemistry nutritional /nju'trɪʃənl/ adj. 营养(物)的 3 nutrition nutritious nutritional alleviate /ə'liːvieɪt/ vt. 减轻；缓解 4 alleviation to alleviate poverty /'pɒvəti/ n. 贫穷；贫困 5 poverty poorly the digest /daɪ'dʒest/ vt. & vi. 消化　vt. 领会；领悟　 /'daɪdʒest/ n. 摘要；文摘 6 digested digestive digestion essential /ɪ'senʃl/ adj. 完全必要的；极其重要的 7 to/for to set (should) learn alternative /ɔːl'tɜːnətɪv/ n. 可供选择的事物 adj. 可供替代的；非传统的 8 alternative but to possible alternatives depth /depθ/ n. 向下(或向里)的距离；深(度) 9 deeply deepen depth 高频短语 in turn 相应地；转而；依次；轮流 1 in turn took turns by turns for instance 例如；比如 2 In for Thank you for watching 第1页 Unit 5　Working the Land 5A新学案 英语 · 选择性必修第一册 ① ask for/request an extension 要求延期 extension number 分机号 ② extend vt. 使伸长；扩展；使延期；伸展 extend one's hand 伸出手 extend a deadline/visa 延长最后期限/签证 ① You can reach me at 637­2335, extension 354. 你可以打637­2335这个电话号码，转分机354，与我联系。 ② The extension of the subway will take several months. 扩建地铁需用几个月时间。 ③ The show has been extended for another six weeks. 展览会又延长了六周。 【即时微练】　用extend的适当形式填空 ① The pupils disliked the ____________________ of the term. ② The life of your car can ________________________ by careful maintenance. ① chemical changes 化学变化 agricultural chemicals 农药 ② chemistry n. 化学 a chemistry teacher 一个化学老师 a chemistry lab 一个化学实验室 The chemicals pose little risk to human health. 这些化学药品对人类健康没有什么危害。 【即时微练】　用chemical的适当形式填空 ① The factory was fined for discharging __________________ into the river. ② A ban was imposed on the use of _______________ weapons. ③ He taught _________________ at a leading independent school. ① nutritional status 营养状况 nutritional value 营养价值 ② nutritious adj. 有营养的；营养丰富的 nutritious food 营养丰富的食物 ③ nutrition n. 营养；滋养 ① Chicken has high nutritional v