Unit 6 Section Ⅰ Starting out & Understanding ideas—Comprehension（Word教参）-【优化指导】2023-2024学年新教材高中英语选择性必修第一册（外研版2019）

单元素养目标 文化、思维、学习能力目标 了解中外著名的世界自然遗产，了解中国建设青藏铁路时为了保护自然生态所做出的努力，了解中外生态旅游文化，形成保护自然生态的意识；全面地、批判性地探讨单元话题，学会运用批判性思维；科学、客观地认识保护自然问题 语言能力目标 核心单词 massive，delicate，splendid，leisure，radiation，wander，economy，jungle，disturb，operator，conservationist，candidate，applicant，favour，advertise，salary，negotiable，preference，qualification，waist 重点词块 overcome the challenges，among the top concerns，catch one's eye，at one's leisure，bring ．．．to life，highlight the importance of，be made up of，under threat，in favour of 单元语法 现在完成进行时 写作能力 写一则招聘广告 单元话题导入 [品读话题短文] How climate change① will affect future food security② needs more research，Hoffman says．For example，he says，climate change increases the amount and kind of pests that attack crops③．The natural assumption may be that those crops will decline，but what if④ the number of the pests' predators also increases? As some growing regions expand while others shrink，it's challenging to predict the fates of specific food items⑤． What is clear，says Hoffman，who was former executive director at the Cornell Institute for Climate Smart Solutions，is that the decline of a particular crop can have a devastating impact on the local level—“like a giant factory moving out of town⑥”． To help communities weather this change⑦，the study says food growers will need to adapt in a variety of ways⑧，from using cover crops to keep soil healthy to breeding more climate­hardy varieties，such as coffee that can tolerate higher temperatures⑨． But as a solution，breeding has limitations: It can take years to perfect，and plant breeders may not be able to keep up with the pace of climate change，says Charles Brummer，director of the plant breeding center at the University of California，Davis．Even the most heat­tolerant plants may not be able to successfully produce if heat waves⑩ become more severe and more frequent． By predicting decades in advance⑪ how agriculture will change，scientists can help farmers know what to expect，and can advise policymakers on how to encour