单元知识回扣4-【精讲精练】2023-2024学年高中英语选择性必修第一册人教版（教师用书）

World Food Crisis Hello, everyone！Now I'll tell you something about our research project The World Food Crisis on behalf of our group. As you know, food shortages have hit many countries in the world and even caused social unrest in some areas. But who is responsible for the current world food crisis? First, annual world grains output has declined because of climate change. Then lots of farmland has been lost due to the rapid development of industry and urbanization. Besides, faced with the rising energy prices, people have turned to the production of biofuels, which has worsened the severe situation. Then what should we do to deal with the problem? On the one hand, we should focus on the environmental protection and improve the ecology. On the other hand, strict measures should be taken to protect farmland. Of course, to build a harmonious world the developed countries should take their responsibilities to help the poor ones experiencing food shortage. As for me, I will call on the people around me to take immediate action. And for the moment, I think, we should put our heart into our own studies to get more scientific knowledge and help solve the food shortage in the future. [词海拾贝] 1．unrest n. 动荡；动乱　 2．urbanization n. 城市化 3．on behalf of 代表 4．due to 由于 Section Ⅰ　Reading and Thinking 原文呈现 A PIONEER FOR ALL PEOPLE Yuan Longping, known as the “father of hybrid rice①”， is one of China's most famous scientists. Yet, he considers himself a farmer ② because he continually works the land in his research. ❶Indeed, his slim but strong body is just like that of millions of Chinese farmers, to whom he has devoted③ his life. ❶是复合句。句中that为代词， 指代本句中的body；to whom为“介词＋关系代词”引导非限制性定语从句， 先行词是farmers, 关系代词whom在从句中作介词to的宾语。 Yuan Longping was born in 1930 in Beijing. His parents wanted him to pursue a career in science or medicine. ❷However, what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage④ of food to eat. To tackle⑤ th