Unit 5 Working the Land Using Language 课件 -2026-2027学年英语新人教版选择性必修第一册

Unit 5 Working the Land 人教版选择性必修第一册 Evaluate chemical farming and organic farming Using Language——Reading for Writing Watch and Think Chemical Farming Vs Organic Farming Which one would you prefer? Why? I’d like to choose Chemical farming, because it can boost the yield of agricultural products in this way. But I want to grow plants without using chemical fertilisers and pesticides. Prediction Predict by analyzing the title and observing the pictures. 1. What is the person in the picture doing? 2.What is he wearing? Why? 3.What is the passage mainly about? Spraying chemical pesticides on the crops. A mask and a hat. Maybe the chemical pesticides are harmful to health. The passage will mainly ________ chemical and organic farming, introducing their ________ and _________ on environment and health. compare advantages disadvantages Read for structure Match the main idea with each paragraph. Para 1 Para 2 Para 3 Para 4 Para 5 What organic farming is. The problems with chemical farming. Some examples for the disadvantages of chemical farming. Organic methods to produce rich soil. Why man-made chemical fertilisers are still used in farming. Part 1 (para 1-2) The problems of chemical farming. Part 2 (para 3-4) What organic farming is and how it keeps the soil rich Part 3 (para 5) Conclusion Text Type:Exposition Read for details Read the passage and answer the questions. Para.1 1. Why did many farmers welcome the introduction of chemical farming? 2. What concerns many people about the use of pesticides? Many farmers welcomed them as a great way to fight crop diseases and increase production. Their long-term use can sometimes harm both the land and people’s health. Para. 2 Read for details Read the passage and answer the questions. 3. What is one problem with the use of chemical fertilisers? Crops grown with them usually grow too fast to be rich in nutrition. Read for details Read the passage and answer the questions. 4. How is organic farming different from chemical farming? Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of diseases through natural means. Para. 3 Para. 4 Read for details Read the passage and answer the questions. 5. Why do organic farmers change the kind of crop grown in a field every year? 6. What is the goal of using organic farming methods? Do you think it can be reached? Why or why not? To grow good food while avoiding damage to the environment or to people’s health. Yes. Farmers worked for centuries without using any kinds of chemicals and without harming the environment, and the food they produced was just fine. Read for details Read again and then finish P56 Task 2. Para. Main Idea Detail 1-2 The problems with chemical farming Pesticides can kill helpful . Some pesticides have been  because of the . Crops grown with chemical fertilisers usually to be full of . 3 What organic farming is Many organic farmers use as fertiliser. bacteria and insects prohibited damage they cause grow too fast nutrition natural waste from animals Read for details Read again and then finish P56 Task 2. Para. Main Idea Detail 4 Organic methods for producing rich soil They often grown in each field . They also plant crops that use  of the soil to help keep it rich. 5 Why man-made chemicals are still used in farming Organic farming is nowhere near able to meet  the high . change the kind of crop every year different depths demand for food around the world Read for logic Read the passage and fill the table. Farming Benefit Problem Solution Chemical farming Organic farming The author uses “Benefits — Problems — Solutions” to introduce chemical farming and organic farming. fight crop disease and increase production sometimes harm both the land and people’s health switch to organic farming make the soil rich; keep the air, soil, water and crops free of chemicals cannot meet the need still a long way to find a suitable solution Find out the transitional words used in the passage. Read for logic Words to show transitions Function however, but, on the contrary, instead, on one hand … on the other hand for example, for instance, in fact, such as, take … for example both…and…, not only…but also, in addition, and, also, as well, what’s more, besides, furthermore, moreover, what’s worse why…is because…, therefore, for this reason, thus, consequently, as a result as for, as an alternative contrasting illustrating adding more information showing cause and effect introducing a new topic/thing Advantages Disadvantages Chemical Farming Organic Farming Summary fight crop disease increase production lower cost crops look beautiful outside ...... healthy food avoid damage to the environment or to people's health ...... harm the land harm people’s health harm the environment crops are less in nutrition less flavour ...... cannot meet the demand for food more efforts and higher cost smelly gases ...... Work in pairs. Summarize the advantages and disadvantages of chemical farming and organic farming based on the text. Discussion Who do you support? Writing Write an argument essay 假如你是李华，你的外教老师正在开展关于同学们对有机农业和无机农业看法的调查，请你根据以下要点写一篇文章。 1.你更加倾向于有机农业； 2.有机农业的优点/无机农业的缺点。 注意：可以适当增加细节，以使行文连贯。 Genre: Tense: Person: argument essay mainly present tense third person 一、任务分析 Writing 二、谋篇布局 Para.1 Para.2 (lead in the topic: organic farming is better) Supporting point2(people’s health) Para.3 Supporting point3(nutrition) Supporting point1(environment) Introduction Body Conclusion (giving a summary of your opinion) Title +Details +Details +Details Writing 三、遣词造句 Wording 1．有机/化学农业 2．好处 3．吸收 4．转而 5．例如 6．解决 7．短缺 8．味道 9．有营养的 organic/chemical farming benefit absorb in turn for instance tackle/solve shortage flavor nutritious Writing 三、遣词造句 making up sentences 1．在我看来，有机农业将比化学农业给我们带来更多的好处，尽管化学农业可以在一定程度上帮助解决食物短缺的问题。 In my opinion，_____________________________________________________ though chemical farming can help tackle the problem of food shortage to a degree. 2．首先，化学农业会危害环境。这些化学物质往往会在土壤和水中积累，并被食物链吸收，在那里它们会毒害野生动物和家畜。 To begin with，chemical farming harms the environment. The chemicals tend to accumulate in the soil and water，and _______________ the food chain， they poison wildlife and domestic animals. organic farming will bring us more benefits than chemical farming are absorbed into where Writing 三、遣词造句 3．这转而影响到我们的健康，因为我们最终会吃含有大量杀虫剂的植物和肉类。 ____________________________，because we end up eating plants and meat that contain high levels of pesticides. 4．最后，有机食品通常比用人造化学肥料培植的食品更有营养。 Finally，_______________________________________ food which is grown with man­made chemicals. In turn，this affects our health organic food is generally more nutritious than 句式升级：用现在分词作定语形式升级。 句式升级：用过去分词作定语形式升级。 In turn, this affects our health，because we end up eating plants and meat containing high levels of pesticides. Finally, organic food is generally more nutritious than food grown with man­made chemicals. Writing 三、遣词造句 5．比如说，大部分无机蔬菜在真正成熟之前就被匆匆送进了市场，所以它们可能不像有机蔬菜那样有味道，也没有有机蔬菜那么有营养。 ________________，most chemical food is rushed to the market before they are really ripe，so they can’t ______________________ organic vegetables，and they can’t be as nutritious，either. 6．因此，虽然价格稍高一些，但我们为有机食品额外支付的小额价格最终会给我们带来巨大的回报。 ____________________________________，the small price we pay extra for organic food will bring us huge rewards in the end. For instance have as much flavour as Therefore，while the price is a little higher 句式升级：用nor引导的倒装句形式升级。 For instance, most chemical food is rushed to the market before they are really ripe. They can’t have as much flavour as organic vegetables，nor can they be as nutritious. Writing 四、连句成篇 Does the writer do a good job of expressing his/her opinion? Does each paragraph have one main idea? Does each paragraph have at least one detail to support its main idea? Does the writer sequence the points in a logical order? Does the writer do a good job persuading you to accept his/her opinion? Use the checklist to help each other revise the drafts. Writing 五、参考范文 In my opinion, organic farming will bring us more benefits than chemical farming, though chemical farming can help tackle the problem of food shortage to a degree. To begin with, chemical farming harms the environment. The chemicals tend to accumulate in the soil and water, and are absorbed into the food chain, where they poison wildlife and domestic animals. In turn，this affects our health, because we end up eating plants and meat containing high levels of pesticides. Finally, organic food is generally more nutritious than food grown with man­made chemicals. For instance, most chemical food is rushed to the market before they are really ripe, so they can’t have as much flavour as organic vegetables, nor can they be as nutritious. Therefore, while the price is a little higher, the small price we pay extra for organic food will bring us huge rewards in the end. Homework Writing Practice 为积极响应学校英语网站《健康生活》栏目的征文活动，请根据以下要点写一篇议论文投稿，说明有机农耕的好处： 1．有机农产品更健康，让人放心； 2．有机农耕对环境不造成破坏； 3．农民售卖价格较高的有机农产品，可以增加收入。 注意： 1. 词数80左右； 2. 可以适当增加细节，以使行文连贯。 Homework Advantages of Organic Farming In my eyes, compared to chemical farming, organic farming enjoys its overwhelming superiority. The reasons are as follows. Firstly, organic food is healthier and safer as in organic farming, poisonous chemicals like pesticides are forbidden from being used on crops. Furthermore, organic farming is environmentally friendly. For instance, organic farmers use natural waste from animals as fertilizer, which is harmless to the environment. Lastly, farmers can increase their income by selling organic food at a high price. As people tend to pursue a green life, they are more likely to buy organic fruit and vegetables despite the high prices. All in all, with incomparable advantages, therefore, organic farming is expected to benefit more people in the future. 参考范文 THANK YOU ! 人教版选择性必修第一册 Lavf58.46.101 $