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【英语】Unit 2《Section One Warming up,Pre-reading and reading》课件(人教版必修4)3


Unit 2 Working the land Warming up A poem Farmers weeding at noon, Sweat down the field soon. Who knows food on a tray, Due to their toiling day. 1.Have you ever grown any plants? If so, what did you do to grow them? How will you grow it? If not, what kind of plant would you like to grow? Pepper Cotton Eggplant corn watermelon cabbage What do you know about “farming”? sorghum wheat rice Staple food corn Potatoes select the weeds plough the soil turn over the soil farming steps sow the seeds remove the weeds fertilize Pre-reading Answer the following questions: What is the main food in all East Asian and Southeast Asian countries? Rice. It is said that there are 2.4 billion people to eat rice every day throughout the world. 1/32 of the earth is used for farming!!! ten years ago More and more farmland has been used for buildings, but not for farming. now Population No .1 problem is… How to feed the world’s people with so limited farmland ? If you had the chance to do something to help end hunger in the world, what would you do ? The measures taken to deal with food shortage problem Stop the pollution to the environment and protect the soil in the field. make good use of the waste land improve the quality of the soil increase the output(产量) of the grain crop per land area (亩产) … etc. In the late 1990s, Brown, an American scholar, came up with the theory of Chinese Menace(威胁), which said that in the 2030s, Chinese pop

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