Unit8 Period One Topic Talk & Lesson 1—Comprehending（word教参)-【状元桥·优质课堂】2023-2024学年新教材高中英语必修第三册（北师大版2019）

Once man did not have to think about the protection of his environment.There were few people on the earth, and natural resources seemed to be unlimited. Today things are different.The world has become too crowded.We are using up① our natural resources, and polluting our environment with dangerous chemicals.If we continue to do this, human life on earth will not survive. We realize that if too many fish are taken from the sea, there will soon be none ❶left.Yet, with modern fishing methods, more and more fish are caught.We know that if too many trees are cut down, forests will disappear.Yet, we continue to use powerful machines to cut down more and more trees.We see that if rivers are polluted with waste products, we will die.Yet, waste products are still put into rivers.We know that if the population continues to rise at the present rate, in a few years, there won't be enough food.What can we do to solve these problems? If we eat more vegetables and less meat, there will be more food available②.Land for crops feeds five times more people than land ❷where animals are kept.Our natural resources will last longer if we learn to recycle③ them.The world population will not rise so quickly if people use modern methods of birth control. Finally, if we educate people to think about the problems, we shall have a better and cleaner planet in the future. 【词块采撷】 ①use up　用完；耗尽 ②available adj.可用的；有空的 ③recycle v．回收利用，再利用 【亮句应用】 ❶过去分词作定语 (2023·新高考Ⅰ)For instance, the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.例如，从4个5人的讨论小组中得到的平均值比从20个独立个体中得到的平均值要准确得多。 ❷where引导定语从句 (2023·全国乙)Born to a Jewish family in Florence, she moved to Paris where she worked as a physician and performed surgery. 她出生在佛罗伦萨的一个犹太家庭，后来搬到了巴黎，在那里她成为了一名内科医生，并从事外科手术。 语言技能：①熟练运用本单元词汇以及句式；②学习动词-ing形式和-ed形式；③学会写调查报告；④学会用自己的方式去保护环境。 素养提升：①了解“根与芽”组织及其宗旨；②了解环境问题，增强环保意识，倡导绿色生活，环保出行。 Period One　Topic Talk & Less