高中英语外研版必修4课件：4单元基础知识整合

高中英语外研版必修4课件：4单元基础知识整合内容摘要：

place at this crossing three years ago. Ⅳ .语篇易记 Which are you interested in, botany, biology, biochemistry, zoology, geics or cosmology? There are brilliant scientists in every field. Today, I39。 ll introduce one of them to you. Dr Yuan Longping is a leading figure in China39。 s agricultural research. Dr Yuan is known for his super hybrid rice and has been awarded several times. Born, brought up and educated in China, Mr Yuan knew that many people suffered from hunger. A lot of them even made their living by begging. At that time rice was a staple food in China. So he dreamed of developing a new species to raise rice production to feed more people. After graduating, supported by the government, he devoted himself to the research. As a result of his years39。 efforts, in 1974, he made a great breakthrough and finally developed hybrid. This hybrid rice has a higher yield than either of the original plants. His discovery was published in newspapers worldwide. Now, Dr Yuan39。 s rice has gradually replaced the mon rice and much of the land has been converted to growing vegetables and cash crops. Large quantities of rice have been exported to other countries, which partly solve the world hunger. Dr Yuan39。 s personal life is very simple. Sometimes, he escapes his busy life by playing the violin or mahjongg. Though he is in his eighties, his physical condition is very good. For his career, he once made a brief summary: I39。 m only a student who asks questions. 你对什么感兴趣，是 植物学、生物学、生物化学、动物学、遗传学 还是 宇宙学 呢。 在每一个领域里都有 才华横溢 的科学家。 今天我给你们介绍其中的一位。