内容正文:
选修一 Unit5 Working the Land
A Pioneer for All People
造福全人类的先驱者
Yuan Longping, ____1____(know) as the “father of hybrid rice”, was one of China’s most famous scientists. Yet, he considered himself a farmer because he ____2_____(continual) worked the land in his research. Indeed, his slim but strong body was just like that of millions of Chinese farmers, to ____3_____ 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, ____4____concerned him most was ___5____farmers often had poor harvests and sometimes even had a serious ____6____(short) of food to eat. ____7____(Tackle) this crisis, he chose to study agriculture and received an education at Southwest Agricultural College in Chongqing.
After graduating in 1953, he worked ____8____ a researcher. Yuan Longping realised that larger fields were not the____9_____(solve). Instead, farmers needed to _____10_____(提高产量) in the fields they had. How this could be done was a ____11_____(challenge) question at the time. Yuan was _____12_____(convince) that the answer could ____13_____(find) in the creation of hybrid rice. A hybrid is a cross between two or more _____14_____(vary) of a species. One characteristic of hybrids is____15_____ they usually attain a ____16____(high) yield than conventional crops. However, ____17_____ it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate. The common _____18_____(assume)then was that it could not be done. Through intense effort, Yuan overcame enormous technical difficulties to develop the first hybrid rice ____19_____could be used for farming in 1974. This hybrid enabled farmers_____20______(expand) their output ____21_____(great).
Today, it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops _____22____(generate) from Yuan’s hybrid strains, and his strains have allowed China’s farmers ____23_____(produce)