Unit 5 Working the Land Using Language 课件-2021-2022学年高中英语人教版（2019）选择性必修第一册

English Learning Unit 5 Working the Land： Using Language English Learning 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 . English Learning They are fertilising the crops. organic fertiliser chemical fertiliser Organic farming Chemical farming What are the farmers doing? What kinds of fertilisers do they use? Now, let's read a text to find the answer. What kind of farming are they doing? English Learning 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 What's the main idea of the text? English Learning Organic farming is simply farmin