人教新课标高中英语必修四 Unit2 Working the land Warming up (共48张PPT)

课件47张PPT。Working the land Warming up Unit 2Enjoy a poem By Li ShenFarmers weeding at noon, Sweat down the field soon. Who knows food on a tray, Due to their toiling day.Do you know the Chinese poem?Weed v.除草，清理 n.杂草，水草 Sweat n.汗，出汗 v.出汗，流汗 Tray n.盘子，托盘，碟 Due to 由于，从……来，是……的功劳 Toiling n.苦役，难事 v.跋涉，辛勤劳作Have you ever been to the countryside? What did you see or do there? Are you from a farmer’s family? What do you know about farming?Have you ever grown any plants? If so, what did you do to grow them? If not, what kind of plant would you like to try growing? How would you grow it? What do you know about “farming”?wheat sorghumrice corn potatocabbagecarrottomato Can you name these food?wheat sorghumrice corn Potato Staple food 主食Do you know the farming steps?select the weeds plough the soil turn over the soil sow the seeds remove the weeds fertilize farming stepsplow the fieldseeding (播种)grow some young plantsInsert（插入）the young plants into the fieldSpray the agricultural chemicals harvestwinnowing (扬谷)Drying milletriceRead the statistics below. Did you know these facts before? What problem do they show?Food is the basic need for humanbeing. Rice is the main food in all East Asian and Southeast Asian countries. It is said that there are 2.4 billion people eat rice everyday throughout the world. What is the main food in all East Asian and Southeast Asian countries?Today there are more than 7 billion people in the world. Nearly 870 million people were suffering from chronic（长期的） undernourishment（营养不良） in 2010-2012, according to the new UN hunger report.Children gather in a poor neighbourhood in the Mawzaa village of the southern Yemeni province of Taiz(塔伊兹（也门西南部城市）) July 1, 2012. HungerWhy could China feed 22%of the world’s people from just 7%of the farmland?Who plays such an important part in Chinese agriculture?If you had the chance to do one thing to help end hunger in the world, what would you do?I would invent a new kind of plant to produce more food.I’ll make a kind of fertilizer to give rice enough nutrition and let them grow quickly and have high product. The only way to solve the food shortage problem is to increase the yield(产量，产出) of the grain crop per land area through the advancement（发展，促进，提升）of science and technology. Just at that time, a Chinese scientist declared（宣布，宣称） to the world that China can solve the problem by himself and help to solve the same problem in the world.A Chinese scientist is helping the hungry people. Who is he?Yuan Longping -- Father of Hybrid Rice Father of Hybrid RiceDo you know anything about him?He is the father of hybrid rice, who was awarded “the Nobel Prize of Asia”. He received the honor for his great contributions to hybrid rice research and the work he did to improve rice production in developing countries. He is called a pioneer for all people.Dr Yuan Longping (袁隆平博士) 袁隆平被誉为中国 ... ...