(
课件网) 一、学习目标： 1）能正确朗读、拼写本单元所有单词、短语 2）熟悉本单元单词的词形变化 二、学习重点： 制作本单元话题词汇的思维导图(mind-map) 学习难点： 利用本单元话题词汇用英语说说农民如何耕作 【预学案】 Work in groups to find out as much vocabulary about“Working the land”as possible Steps of farming（耕作过程）： 犁地 播种 灌溉 农产品 Ways of farming（耕作方式）： 化学耕作 有机耕作 ploughing (犁田) seeding irrigating 灌溉 fertilizing (施肥) Natural waste harvesting Do you know these products? wheat rice sorghum 高粱 corn cotton peanut soybean 大豆 【课堂检测】 Work in groups and fill in the mind-map with proper words Working the land Steps of farming Ways of farming product soil Working the land Steps of farming Ways of farming product soil circulate ploughing seeding irrigation rice wheat bean soybean sorghum peanut corn chemical organic weed pest bacterium mineral nutrition fertilizer natural waste 【当堂训练】 Work in groups and find out as many derivatives （派生词）of some words in the mind-map as possible. ploughing n. 耕作，耕翻 plough n. 犁 vi.用犁耕地 Working the land Steps of farming Ways of farming product soil circulate ploughing seeding irrigation rice wheat bean soybean sorghum peanut corn chemical organic weed pest bacterium mineral nutrition fertilizer natural waste Working the land Steps of farming Ways of farming product soil circulate ploughing seeding irrigation rice wheat bean soybean sorghum peanut corn chemical organic weed pest bacterium mineral nutrition fertilizer natural waste plough n. 犁 vi.用犁耕地 seed n. 种子vt. 播种 irrigate vt. 灌溉 produce n.农产品vt.生产 production n. 生产 circulation n.循环、传播 chemistry n. 化学 chemist n. 化学家 organ n.器官 fertilize vt.使肥沃 fertile a.肥沃的 mine n.矿 vi.开矿 miner n.矿工 nutrient n.营养物a.营养的 【课堂研讨】 Work in groups and tell in class: how farmers work the land. You can use the mind-map to help you. How farmers work the land Farmers will take the following steps to work the land. First, plough. Second, seed. Third, irrigate. Finally, harvest. They will harvest a lot of products, such as rice, wheat, sorghum, soybean, peanut, corn and so on. There are two ways of farming. One is chemical farming and the other is organic farming. By chemical farming, farmers use fertilizers to get rid of pests, weeds and bacterium. By organic farming, farmers use natural waste. In this way, minerals and nutrition are brought back to soil. As a result, soil can be circulated and farmers can work the land again and again. 【课后拓展】课后作业1
