Unit 2 Working the land 同题异文 群文阅读（课件PPT）-【步步高】2024-2025学年高中英语选修第一册学习笔记（译林版）

该高中英语单元复习课件围绕“农业”主题，系统整合化学农业与有机农业对比、室内农业发展等核心内容，通过同题异文群文阅读串联阅读技能、话题词汇及语篇分析方法，构建“主题-技能-词汇”三维知识网络。 其亮点在于采用“群文对比阅读+分层阅读训练”策略，如通过化学农业与有机农业的优缺点分析题、室内农业成功与失败案例的观点辨析题，培养学生的思维品质（分析与比较）和语言能力（信息获取与表达），配套词汇积累表强化学习能力。这种设计让教师能精准覆盖单元重点，学生可分层巩固，提升复习效率。

阅读理解 同题异文　群文阅读 Working the land Unit 2 A (选自人教版选择性必修第一册Unit 5) CHEMICAL VERSUS ORGANIC FARMING Chemical pesticides and artificial fertilisers have been in widespread use in farming since the middle of the 20th century.When they were first introduced，many farmers welcomed them as a great way to fight crop disease and increase production.Over time，however，what some scientists have found is that their long­term use can sometimes harm both the land and people’s health. For example，pesticides can damage the land by killing not only harmful bacteria and insects，but also helpful ones.In addition，these chemicals can stay in the soil and underground water sources for a long time.This affects the crops grown on the land and，in turn，the animals and humans who digest them.Many people worry that these chemicals may make them ill and even cause cancer.In fact，some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment.As for chemical fertilisers，crops grown with them usually grow too fast to be rich in nutrition.They may look beautiful on the outside，but inside there is usually more water than essential minerals，and they often have less flavour as well. As an alternative，some farmers have switched to organic farming，and many customers have turned to organic food when they shop at the local grocery.Organic farming is simply farming without using any chemicals.Organic farmers focus on keeping their soil rich and free of disease through natural means.For example，many organic farmers use natural waste from animals as fertiliser.This makes the soil in their fields richer in minerals.It also keeps the air，soil，water，and crops free of chemicals. Organic farmers also use many other methods to produce rich soil.They often change the kind of crop grown in each field every year.For instance，they may grow corn or wheat in a field one year，and then grow beans there the next.Why different crops are grown is that they put important minerals back into the ground，making it ready for the next batch of crops.Organic farmers also plant diverse crops that use different depths of soil to help keep it rich.For example，peanuts grow on the ground’s surface，but many other vegetables put down deep roots.The goal of using different organic farming methods is to grow good food while avoiding damage to the environment or to people’s health. Some people would prefer to stop the use of man­made chemicals in agriculture entirely.What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world. Organic farming is nowhere near able to meet that need.Therefore，there is still a long way to find a suitable solution that puts sufficient food on the dinner table while keeping people and the environment as healthy as possible. 1.Why did many farmers welcome the introduction of chemical pesticides and artificial fertilisers? A.They can fight crop disease and increase production. B.They harm both the land and people’s health. C.They can help produce rich soil. D.They are not expensive. √ 2.What concerns many people about the use of pesticides? A.That pesticides can damage the land. B.That chemicals can stay in the soil for a long time. C.That pesticides can kill harmful bacteria and insects. D.That chemicals may make people ill and even cause cancer. √ 3.What is the purpose of changing the kind of crop grown in each field every year? A.To help put important minerals back into the ground. B.To avoid damage to the environment. C.To help increase output. D.The writer didn’t tell us. √ 4.Why can’t we stop the use of man­made chemicals in agriculture entirely? A.Organic farming costs us a lot of money. B.Organic farming can meet people’s need. C.Chemical farming can bring us huge profits. D.Chemical farming helps serve the high need for food. √ 词汇积累 1.widespread adj.分布广的；普遍的 2.essential adj.完全必要的；极其重要的 3.mineral n.矿物；矿物质 4.alternative n.可供选择的事物 adj.可供替代的；非传统的 5.for instance 例如；比如 6.depth n.向下(或向里)的距离；深(度) B Indoor food growing operations are seeing both successes and failures in the United States.Some companies in the food industry are investing even as competitors fail. California­based Plenty Unlimited this summer began working on $300 million indoor plants，while Kroger announced that it would be increasing its availability of vertically farmed produce.Meanwhile，two indoor farming companies that got strong backing—New Jersey’s AeroFarms and Kentucky’s AppHarvest—filed for financial failure and reorganization.And a five­year­old company in Detroit，Planted Detroit，shut its door this summer. The industry changes do not worry Jacob Portillo，a grower with Eden Green Technology，an indoor farming company.“The fact that other people are failing and other people are succeeding is going to happen in any industry you go to，” he said. Indoor farming refers to growing crops indoors，which experts sometimes call “controlled environment agriculture”.There are different methods.One method called vertical farming involves putting produce from floor to ceiling，often under artificial lights and with the plants growing in nutrient­enriched water.Other growers are trying very large greenhouses，indoor beds of soil in big buildings and using special robots for parts of the farming process. Supporters say growing indoors uses less water and land and permits food to be grown closer to consumers，saving on transport.Indoor growing is also a way to protect crops from increasingly extreme weather caused by climate change. But critics question the sustainability of operations that can require a lot of energy for artificial lights.And they say paying for that light can make profitability impossible.Curt Covington of AgAmerica Lending，a private investment company centered on agriculture，is not convinced that indoor farming operations can work—except in special cases.Given the high cost of indoor operations，Covington said，“It’s just hard to be very profitable.” 1.What is Jacob Portillo’s attitude to the indoor food growing industry? A.Positive. B.Worried. C.Unclear. D.Doubtful. √ 2.What can we learn about indoor farming? A.It takes a lot of manpower to take care of plants. B.It means growing plants in water instead of soil. C.It protects crops from increasingly extreme weather. D.It is different from controlled environment agriculture. √ 3.Why did Curt Covington question indoor farming operations? A.They produce little food. B.They carry great cost. C.They need sunlight. D.They lack investors. √ 4.What is the best title for the text? A.What Types of Food Can Be Grown Indoors? B.How Can You Grow Food Indoors Without Soil? C.Indoor Farming Companies Take Agriculture Indoors D.Indoor Food Growing Operations Face an Uncertain Future √ 词汇积累 1.invest v.投资；投入 2.vertically adv.垂直地；纵向地 3.financial adj.财政的，财务的 4.sustainability n.可持续性 5.profitability n.获利状况；盈利能力 本课结束 $