Unit 5 Assessing Your Progress（写作课课件）英语人教版选择性必修第一册

该高中英语课件聚焦化学农业与有机农业对比的说明文写作，课堂导入通过观看视频、图片猜测活动激活学生认知，随后引导分析两种农业方式的定义及优缺点，搭建知识支架，衔接Pre-Writing的文体识别与段落匹配环节，为写作任务奠定基础。 其亮点在于Post-Writing环节设计自评互评清单、五档评分标准及自评量表，结合单元反思，培养学生学习能力与思维品质，Homework以“Green Farming, Better Future”征文活动联系现实，提升文化意识。采用支架式与任务驱动教学，助力学生提升语言能力与逻辑思维，教师可借助完整流程与评价工具优化教学。

Unit 5 Working the Land 高中英语人教版选择性必修第一册 Assessing Your Progress 写作课 Contents 1. Lead in 2. Pre-Writing 3. While-Writing 4. Post-Writing（Self-assessment） 5. Homework 01. Lead in Watch a short video Lead in Look at the pictures below and guess which one is organic farming? chemical pesticides organic fertilizer artificial fertilisers Lead in Chemical Farming Versus Organic Farming Lead in Organic Farming Chemical Farming Advantages Disadvantages Improve soil quality protect the environment ... Higher production costs. long conversion period. ... Advantages Disadvantages higher crop yields Lower production costs Short growing cycles ... Threaten people’s health. Cause water and air pollution ... Lead in 02. Pre-Writing Predict what the text is about according to the title and pictures Chemical farming and Organic farming. What type of writing is it? Exposition (说明文). Pre-Writing Match the main ideas (A-D) below with the paragraphs. Then complete the sentences in the table. A What organic farming is C Organic methods for producing rich soil D The problems with chemical farming B Why man-made chemicals are still used in farming Pre-Writing Skim the text and explain the meaning of chemical farming and organic farming. It depends heavily on man-made chemical fertilizers and pesticides to increase production. It is a farming method without chemical pesticides or fertilizers. Farmers use natural materials to grow crops and protect the environment. Pre-Writing 03. While-Writing Read para.1 and para.3, and then answer the following questions. 1. What’s chemical farming? 2. What’s organic farming? Para.1 Chemical farming is farming using chemical pesticides and artificial fertilizers. Para.3 While-Writing Para.2 3. What is the problem with the use of chemical fertilisers? While-Writing 4. Why do organic farmers change the kind of crop grown in a field every year? Para.4 While-Writing      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 ressult as for, as an alternative contrast illustrate add cause and effect introduce a new topic While-Writing 04. Post Writing （Self-assessment） Post Writing·Self-assessment 一、互评修改清单 1. Does the writer do a good job of expressing his/her opinion? 2. Does each paragraph have one main idea? 3. Does each paragraph have at least one detail to support its main idea? 4. Does the writer sequence the points in a logical order? 5. Does the writer do a good job persuading you to accept his/her opinion? Post Writing·Self-assessment 二、评分标准（五档25分制） 第五档（很好）(21～25分)： (1) 紧扣化学农业与有机农业对比主题，完整对比两种耕作方式的利弊，观点明确、内容完整，贴合写作要求，行文逻辑严谨，写作任务完成度高； (2) 熟练运用单元农业主题词块与观点表达句型，语法结构准确丰富，语言错误极少，完全不影响语义表达； (3) 自然且有效地使用过渡衔接词汇，文章结构紧凑、层次分明，论点论据呼应，全文语义连贯、主题突出。 Post Writing·Self-assessment 三、写作自评量表 审题项目 具体内容 自检问题 体裁格式 议论文，观点鲜明、论证清晰 □ 文体格式正确 □ 无口语化冗余表达 内容要点 两种农业特点+利弊对比+个人观点 □ 三点要点全部覆盖 □ 有具体细节支撑 语言表达 使用单元观点句型、话题词块 □ 句型丰富多样 □ 语法拼写无误 逻辑结构 引入—对比—观点—总结，层层递进 □ 过渡词自然 □ 行文逻辑连贯 字数规范 100词左右 □ 词数在90-110区间 常见雷区 只介绍特点无对比、观点模糊、无细节支撑 □ 规避以上问题 □ 主题突出不跑偏 Post Writing·Self-assessment 四、单元反思 REFLECTING 1. What did you learn about agriculture that you did not know before? 2. What interested you most about agriculture in this unit? Give your reasons. 3. What other important aspects of agriculture do you want to know about? Overall, I thought this unit was ○ interesting ○ useful ○ so­so ○ difficult. 05. Homework Lead-in Homework 同类巩固 你校英文报正在开展主题为 Green Farming, Better Future 的征文活动，请你结合本单元所学，写一篇英文短文投稿。内容包括： 1. 简述现代农业的两种耕作方式； 2. 对比说明有机农业的优势； 3. 表达对绿色农业发展的展望。 注意： 1. 词数100左右； 2. 可以适当增加细节，以使行文连贯。 ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Homework Green Farming, Better Future Modern farming mainly includes chemical farming and organic farming, which have totally different influences on our life and environment. Chemical farming can raise crop output quickly to meet global food needs. However, long-term use of chemicals damages soil quality, pollutes water sources and threatens human health. In my eyes, it is a short-sighted farming method. Without a doubt, organic farming is more sustainable. It uses natural resources to protect soil ecology and produce safe, nutritious food. Though it has limitations in output at present, it is the best choice for long-term agricultural development. I believe green organic farming will create a better future for mankind. 参考范文 Thank you for your listening $