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现代农业.ppt

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Unit19 Modern Agriculture agriculture farm irrigation food crop field plants plain farming grain farmer fertilizer seed prairie countryside land arable land Discuss the following questions with you partner. 1、 Look at the pictures pare traditional and modern farming. 2、 What are the advantages and disadvantages of each way ? 3、 What other changes have happened on farms in the last 100 years? Traditional farming--- Agriculture Modern farming --- Hi-tech farming --- agriculture Traditional farming Modern farming Hi-tech farming Advantages Disadvantages

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