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人教版(2019)选择性必修 第一册Unit 5 Working the Land课件(共112张PPT)

日期:2024-05-19 科目:英语 类型:高中课件 查看:53次 大小:4513820Byte 来源:二一课件通
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(课件网) UNIT 5 Working the Land Get to know an agricultural scientist ①Before you read, look at the photo and the title of the text. Discuss these questions in groups. 1 Who is the man in the photo What crop is he holding in his hands 2What do you know about the man what else do you want to know about him 2 Read the text. Match the main idea with each paragraph. Paragraph 1 A Yuan conducted research and developed hybrid rice. Paragraph 2 B Yuan worked hard to fulfil his dreams. Paragraph 3 C Yuan considered himself a farmer. Paragraph 4 D Yuan decided to study agriculture. Paragraph 5 E Yuan's innovation has helped to feed more people. Paragraph 6 F Yuan cared little for fame or wealth. A PIONEER FOR ALL PEOPLE Yuan Longping, known as the "father of hybrid rice", was one of China's most famous scientists. Yet, he considered himself a farmer because he continually worked the land in his research. indeed, his slim but strong body was just like that of millions of Chinese farmers.to whom he had devoted his life. Yuan Longping was born in 1930 in Beijing. His parents wanted him to pursue a career in science or medicine. However, what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat. To tackle this crisis, he chose to study agriculture and received an education at Southwest Agricultural College in Chongqing. After graduating in 1953, he worked as a researcher. YuanLongping realised that larger fields were not the solution. Instead, farmers needed to boost yields in the fields they had. How this could be done was a challenging question at the time. Yuan was convinced that the answer could be found in the creation of hybrid rice. A hybrid is a cross between two or more varieties of a species. One characteristic of hybrids is that they usually attain a higher yield than conventional crops. However, whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate. The common assumption then was that it could not be done. Through intense effort, Yuan overcame enormous technical dificulties to develop the first hybrid rice that could be used for farming in 1974. This hybrid enabled farmers to expand their output greatly. Today, it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan's hybrid strains, and his strains have allowed China's farmers to produce around 200 million tons of rice per year, Yuan's innovation has helped feed not just China, but many other countries that depend on rice as well, such as India and Vietnam. Because of his invaluable contributions, Yuan Longping received numerous awards both in China and abroad. Given that Yuan's hybrids made him quite wealthy, one might think he would have retired to a life of leisure. However, this is far from the case. Deep down, Yuan was still very much a farmer at heart. ... ...

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