Unit 5 Working the land Reading and Thinking课件-2023-2024学年高中英语人教版选择性必修第一册

Unit 5 Working the Land ---A Pioneer for All People The Symbol of Young Pioneer A pioneer for all people 1.What do you know about Yuan Longping? 2.What do you want to know about Yuan Longping? Pre-reading 1.What motivated him to stick to agricultural researches? 2.What difficulties did he meet? 3.What are advantages of hybrid rice? 4.How did he develop the hybrid rice? 5.What are Yuan’s Contributions? 6.What are his dreams? 7.What kind of person is he? Pre-reading Pre-reading According to the title and illustrastion,what’s the type of this text do you think it is? Biography Argumentation Exposition While-reading Para.2 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. Q1.What motivated him to stick to agricultural reseaches? motivation food crisis While-reading Q2.What difficulties did he meet? Para.3 After graduating in 1953，he worked as a researcher.Yuan Longping 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 self­pollinating 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 difficulties to develop the first hybrid rice that could be used for farming in 1974. This hybrid enabled farmers t