学习任务单 课程基本信息 学科 英语 年级 八年级 学期 秋季 课题 Unit 7 The natural world (Reading) 学习目标 获取并梳理生态系统的基本概念，以及地球上三大生态系统的分布、功能与重要性等相关信息，构建关于语篇的结构化知识； 赏析科普类语篇语言特点，理解明喻的修辞手法，并运用语篇的词汇和句型表达； 探讨人类活动对生态环境的影响，提出保护措施，增强生态保护的意识。 课前学习任务 复习Unit 7 The natural world (Welcome to the unit)的内容； 上网搜索和了解更多不同生态系统的趣味知识。 课上学习任务 【学习任务一】 Students recall the names of different ecosystems they learned last lesson. 【学习任务二】 Students talk about what they know about oceans, wetlands and forests. 【学习任务三】 Students go through the article quickly and find out what type of writing the article is. 【学习任务四】 Students skim the article and get the main idea of each part. 【学习任务五】 Students read paragraph 1 and answer： What is an ecosystem Are ecosystems always large Is each ecosystem important Why or Why not 【学习任务六】 Students read paragraphs 2-4 and complete the following table: 【学习任务七】 Students read paragraph 5 and answer: Why are the three ecosystems important for the earth 【学习任务八】 Students finish Part C on page 97. 【学习任务九】 Students discuss: How do human activities affect the ecosystems Give more examples. What can we do to protect the ecosystems in our daily life 【学习任务十】 Students speak for ecosystems: 【学习任务十一】Homework Must do Introduce the three ecosystems, using the language we learned today. Choose to do Make a poster about one ecosystem. 推荐的学习资源 无。(
课件网) 年 级：八年级 学 科：英语（译林版） Unit 7 The natural world (Reading) Revision Ecosystems Rainforest Ocean Desert Polar Grassland Wetland Pre-reading What are the three main ecosystems on earth Pre-reading What do you know about oceans, wetlands and forests Cover most of the earth Salt water Fish and dolphins Places with lots of water Swamps Birds and fish Cover much of the earth’s land area Full of trees Different animals While-reading What type of writing is the article A popular science article Paragraph(s) Main ideas Introduction (Para. 1) A general to an ecosystem Main body (Paras. 2-4) Detailed about the three ecosystems Conclusion (Para. 5) The of the three ecosystems introduction information importance a In a newspaper. b In a travel guide. c In a geography magazine. Where can we read this kind of article While-reading Read paragraph 1 and answer 1. What is an ecosystem 2. Are ecosystems always large 3. Is each ecosystem important Why or why not An ecosystem includes all the living things and non-living things in an area. be made up of air, water, soil and sunlight No. Ecosystems can be of different sizes, from small ponds to large grasslands. Yes. It helps keep the balance between all its members and the greater environment. While-reading Read paragraphs 2-4 and complete the following table Special name Size ... ...
