Unit 5 Using Language 课件-2023-2024学年高二英语人教版（2019）选择性必修第一册

UNIT 5 WORKING THE LAND Using Language: chemical versus organic farming Learning objectives In this class we will: To know the meanings of chemical farming and organic farming. To know the advantages and disadvantages of both chemical farming and organic farming. To master some transitional words or phrases in the text. To express opinions on chemical farming and organic farming, and write an argumentative essay . I Love New Words PART 01 3 chemical 化学的 。 添加标题 在此录入图表的综合描述说明，在此录入图表的综合描述说明。 加 标题 添加 标题 添加 标题 添加 标题 chemical [ˈkemɪkl] 化学的 bacteria [bækˈtɪəriə] 细菌 pest [pest]害虫 4 production [prəˈdʌkʃn]生产；制造 nutrition [nuˈtrɪʃn] 营养 mineral [ˈmɪnərəl] 矿物质 Warming up PART 02 6 The steps to plant P 在此添加标题 在此添加标题 fertilize [ˈfɜːtəlaɪz] the soil施肥 kill off the pest [pest] plow [plaʊ]犁地 sow [saʊ]播种 water the crop [krɒp] rid the soil of the weed 7 The steps to plant have a harvest [ˈhɑːrvɪst] 收获 8 Organic Farming Organic farming is simply farming without using any chemicals. Which tomatoes do you prefer? 5 yuan / kg 30 yuan / kg Normal tomatoes Organic tomatoes What's the main idea of the text? The text mainly talks about chemical farming and organic farming. ________________ can cause many problems, as an alternative, some people switch to ________________. Chemical farming organic farming Organic farming is simply farming without using any chemicals. 1. What is chemical farming? 2. What is organic farming? Skim the text, and then answer the following questions. Chemical farming is farming using chemical pesticides and artificial fertilisers. 1. What is the main idea of the text?( @45@ ) A. Advantages and disadvantages of chemical farming and organic farming. B. Chemical pesticides can fight crop disease and increase production. C. Artificial fertilisers can harm both the land and people’s health. D. Organic farmers focus on keeping their soil rich and free of disease through natural means. A Match the main ideas (A-D) below with the par