Unit 5 Working the Land 课文语法填空改编课 件-2024-2025学年高中英语人教版（2019）选择性必修第一册

Reading and Thinking 课文语法填空测试 Yuan Longping, ______(know) as the “father of hybrid rice”, was one of China’s most famous scientists. Yet, he considered himself a farmer because he _________(continue) worked the land in his research. Indeed, his slim but strong body was just like ______ of millions of Chinese farmers, to ________ he had devoted his life. Yuan Longping was born ____ 1930 in Beijing. His parents wanted him to pursue a career ____ science or medicine. However, ______ concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food ______(eat). To tackle this crisis, he chose to study agriculture and received an education at Southwest Agricultural College in Chongqing. known continually that whom in what in to eat After graduating in 1953, he worked ____ a researcher. Yuan Longping realised that larger fields were not the solution. Instead, farmers needed to boost yields in the fields they had. _____ this could be done was a challenging question at the time. Yuan _________(convince) that the answer could ______(find) in the creation of hybrid rice. A hybrid is a cross between two or more varieties of a species. One characteristic of hybrids is _____ they usually attain a ______(high) yield than conventional crops. However, _________ 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 ______ it could not be done. Through intense effort, Yuan overcame enormous technical ________(difficult) to develop the first hybrid rice ______ could be used for farming in 1974. This hybrid enabled farmers _________(expand) their output greatly. as How was convinced found that higher whether that difficulties that to expand Today, it ________(estimate) that about 60 percent of domestic rice consumption in China is comprised of crops _______(generate) 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, _____ many other countries that depend on rice as well, such as India and Vietnam. Because of his ________(value) contributions, Yuan Longping received numerous awards both in China and abroad. ______(give) 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 ______ a farmer at heart. _____ a man of the soil, he cared little for celebrity or money. ________, he made large donations _________(support) agricultural research. _______ impressed people most about Yuan Longping was his ongoing ability _______(fulfil) his dreams. Long ago, he envisioned rice plants as tall ____ sorghum, ______ each ear of rice as big as a broom, and each grain of rice as huge as a peanut. He succeeded in _______(produce) a kind of rice ______ could feed more people at home and abroad. His later vision for “seawater rice” also became a reality, and potentially opened _____ nearly one million square kilometres of salty land in China for rice production. Even in his later years, Yuan Longping was still young _____ heart and full of vision, and everyone was always excited to see _______ he would dream up next. Reading For Writing Chemical pesticides and artificial fertilisers _________(be) in widespread use in ________ (farm) since the middle of the 20th century. When they were first introduced, many farmers welcomed them____ a great way ________ (fight) crop disease and increase production. Over time, ________, what some scientists have found is ____ their long-term use can sometimes harm both the land _____ people’s health. have been as however that and farming to fight For example, pesticides can damage the land by ______(kill) not only harmful bacteria and insects, _______also helpful ones. In addition, these chemicals can stay in the soil and underground water sources for a long time. This affects the crops ______ (grow) on the land and, in turn, the animals and humans _____ digest them. Many people worry ___ these chemicals may make them ill and even cause cancer. In fact, some pesticides _____DDT have been _________(prohibite) in most countries because of the damage they cause____people and the environment. As for chemical fertilisers, crops ______(grow) with them usually grow too fast _____(be) rich in nutrition. They may look beautiful on the outside, but inside there is usually more water than _________(essence) minerals, and they often have ______ (little) flavour as well. killing but who like to to be less Para 2 grown that prohibited grown essential As____ alternative, some farmers have ________ (switch) to organic farming, and many customers have turned _____ organic food_____ they shop at the local grocery. Organic farming is simply farming_______ using any chemicals. Organic farmers focus on _______ (keep) their soil rich and free _____disease through natural means. For example, many organic farmers use natural waste from animals ____fertiliser. This makes the soil in their fields _____ (rich) in minerals. It also keeps the air, soil, water, ____ crops free of chemicals. an when of as without and Para 3 switched to keeping richer Para 3 Organic farmers also use many other ________(method) to produce rich soil. They often change the kind of crop ______ (grow) in each field every year. ____instance, they may grow corn ___wheat in a field one year, and then grow beans there the next. Why different crops are grown ____(be) because they put important minerals back into the ground, _______(make) it ready for the next batch of crops. Organic farmers also plant diverse crops that use different _______(depth) of soil to help keep it rich. For example peanuts grow ____ the ground’s surface, but many other vegetables put down deep_____( root). The goal of using different organic farming methods ____(be) to grow good food while avoiding damage to the environment or ____ people’s health. methods For or is making depths on roots is to Para 4 grown Para 4 Some people would prefer _______(stop) the use of man-made chemicals in agriculture _______(entire). _______ keeps them from ______ (do) so is the fact ______ chemical farming serves the high demand for food _______ the world. Organic farming is nowhere near able _______( meet) that need. Therefore, there is still a long way _______ (find) a suitable ________(solve) that puts sufficient food on the dinner table while ________(keep) people and the environment as healthy ____possible. to stop entirely What that to meet solution keeping as Para 5 around to find doing Para 5 $$