UNIT 5 Section Ⅳ（配套Word）-【精讲精练】2026-2027学年高中英语选择性必修第一册教师用书（人教版）

本高中英语讲义聚焦议论文写作核心知识点，系统梳理议论文通过议论表达见解、提出理由说服他人的文体特征及文章架构。提供呈现观点、赞成反对的必备词汇，以及提出论点、列举理由、表明观点的关键句型，构建从写作步骤（审题谋篇、遣词造句、词句升级、妙笔成篇）到有机农业辩论实践，再到农业新技术拓展训练的完整学习支架。 该资料特色在于以结构化写作支持提升语言能力，如提供“Recently our class has had a debate...”等句型模板助力规范表达；通过化学农业危害与有机农业优点的正反对比培养思维品质，引导学生辩证分析；实践应用与跟踪训练结合增强学习能力，如词句升级中v-ing作状语改写及因果逻辑优化。课中辅助教师系统教学，课后帮助学生巩固写作逻辑，查漏补缺。

Section Ⅳ　Writing 写一篇关于农业的议论文 本单元要求写一篇议论性的文章。议论文通过议论或说理来表达作者的见解和主张。作者对某一问题持有一种看法， 为了使读者同意自己的看法， 提出若干理由， 试图说服他人。 [文章架构] [必备词汇] 1．呈现观点 ①a widespread concern over... 对……的广泛关注 ②advantages and disadvantages 利弊；优点和缺点 ③two different opinions toward it 对于这件事的两种不同的观点 ④for the following three reasons 由于以下三个原因 ⑤on the basis of the above discussion 基于以上讨论 2．赞成或反对 ①be for/be against赞成/反对 ②be in favor of支持 ③agree to赞成 [必备句型] 1．提出论点，引入话题 ①Recently our class has had a debate about whether organic farming is good for us. Different students hold different opinions. 最近我们班就有机耕作是否对我们有益展开了一场辩论。不同的学生有不同的看法。 ②There are different opinions among students as to organic farming. Some people suggest that the vegetables of the organic farming are grown without any chemical fertiliser. 对于有机耕作，学生们有不同的看法。一些人认为有机农业的蔬菜是在不使用任何化肥的情况下种植的。 ③Opinions about organic farming vary from person to person. Some people are in favour of it while others are against it. 关于有机耕作的看法因人而异。一些人赞成，而另一些人反对。 2．列举正反方观点及其理由 ①Some students are in favour of organic farming. Firstly, they think the vegetables of the organic farming are grown without any chemical fertiliser. Besides, organic farming practices are designed to encourage soil and water conservation and reduce pollution. Last but not least, more and more people are demanding the most natural and nutritious choices for their family. 有些学生赞成有机耕作。首先，他们认为有机耕作的蔬菜是在不使用任何化学肥料的情况下种植的。此外，有机耕作方式旨在鼓励保持水土和减少污染。最后但同样重要的是，越来越多的人要求为他们的家庭选择最天然和最有营养的食物。 ②However, others are against it because it costs a great deal to develop organic farming. 然而，其他人则表示反对，因为发展有机耕作要花费很多钱。 3．表明自己的观点 ①As the old saying goes, everything has two sides. It has both advantages and disadvantages. 俗话说，凡事都有两面性。它既有优点，也有缺点。 ②All in all, I'm in favour of organic farming. I hope more and more farmers will turn to organic farming in the future. 总之，我赞成有机耕作。 我希望将来会有越来越多的农民转向有机耕作。 ③From what has been discussed above, we can draw the conclusion. 从以上讨论中， 我们可以得出结论。 关于有机农业和化学农业，你们班举行了一场辩论。请结合你们的讨论结果，写一篇支持有机农业的英语作文，词数不少于80。 内容包括： 1．化学农业的危害； 2．有机农业的优点及理由； 3．作出总结。 [写作步骤] 第一步　审题谋篇 第二步　遣词造句 1．关于化学农业和有机农业有各种观点。 There are various opinions about chemical agriculture and organic agriculture. 2．残留在农作物中的化学物质会导致癌症或其他疾病。蔬菜生长得太快，几乎没有营养。 The chemicals staying inside the crops can lead to cancer or other illnesses．The vegetables grow so fast that they contain little nutrition. 3．随着人们越来越富裕，他们非常重视健康。有机农产品仅使用天然肥料，使蔬菜和水果既美味又营养。 As people are richer，they attach great importance to health．Organic produce simply uses natural fertilisers. It makes vegetables and fruit tasty and nutritive. 4．俗话说，健康是第一财富。选择有机食品是更明智的。 As the old saying goes，health is the first wealth.And it is wiser to choose organic food. 第三步　词句升级 5．把句3升级为v.­ing作状语 As people are richer，they attach great importance to health.Organic produce simply uses natural fertilisers，making vegetables and fruit tasty and nutritive. 6．用因果关系改写句4，使其更具逻辑性 As the old saying goes，health is the first wealth，so it is wiser to choose organic food. 第四步　妙笔成篇 【参考范文】 There are various opinions about chemical agriculture and organic agriculture. It is obvious that chemical agriculture has many disadvantages. Above all，the chemicals staying inside the crops can lead to cancer or other illnesses. Besides，the vegetables grow so fast that they contain little nutrition. Organic foods are becoming increasingly popular with customers. As people are richer，they attach great importance to health. In addition，organic produce simply uses natural fertilisers，making vegetables and fruit tasty and nutritive.Moreover，the produce grows in clean water and never uses pesticides，which is beneficial to our health. As the old saying goes，health is the first wealth，so it is wiser to choose organic food. (2025·广东广州期中联考)近年来，越来越多的科学技术被应用于现代农业生产中。科学技术的进步促进了农业发展，但同时也引发了一系列问题。你所在的学校校报正开展以“Farming and the new technologies”为主题的征文活动。请你用英语写一篇短文投稿，内容包括以下要点： 1．分析“农业与新技术”的优势和问题； 2．阐述你的观点，并说明原因。 注意：1.词数为80词左右； 2．开头已给出，不计入总词数。 Farming and new technologies In recent years, an increasing number of new technologies have been applied in farming. 【参考范文】 Farming and new technologies In recent years, an increasing number of new technologies have been applied in farming. Despite all inevitable risks, these breakthroughs in technologies do promote agricultural development. On the one hand, with the application of various advanced technologies, varying from automatic systems to AI integration in agricultural field, the farming efficiency and productivity are shooting up, enabling farmers to break away from tedious physical workloads.On the other hand, what concerns the public is that the long­term effects of new technologies may do harm to the environment and human health.Furthermore, the escalating unemployment level and population migration issues due to the automatic farming process should be fully taken into consideration. As far as I'm concerned, while we are embracing new technologies in farming, it is crucial to strike a balance between their benefits and risks to fulfill the sustainable farming development. 学科网（北京）股份有限公司 $