专题 20 耕作土地 Part 1 语法填空 （一） 阅读下面材料，在空白处填入 1 个适当的单词或括号内单词的正确形式。 Known as the father of hybrid rice, Yuan Longping always considers 1． (he) as a farmer. As a young man, Yuan were concerned about farmers’ poor harvests and shortage of food to eat. 2． (tackle) this crisis, he chose to study agriculture and received an education at Southwest Agricultural College. After graduating in 1953, Yuan worked as a researcher. He was convinced that the 3． (solve) lay in the creation of hybrid rice rather than larger fields. One characteristic of hybrids is that they usually attain a 4． (high) yield than conventional crops. Through intense effort, Yuan 5． (overcome) enormous technical difficulties to develop the first hybrid rice, enabling farmers to increase their output greatly 6． expanding the fields. Today it’s estimated 7． about 60 percent of domestic rice consumption in China is comprised of crops 8． (generate) from Yuan’s hybrid strains. Yuan’s innovation has helped feed not just China, 9． many other countries that depend on rice as well. Despite Yuan’s invaluable contributions and great achievements, he never led a life of leisure. Instead, he devoted his whole life to 10． (fulfill) his dreams. He is indeed a great scientist who deserves our greatest respect. （二） 阅读下面材料，在空白处填入适当的内容（不多于 3 个单词）或括号内单词的正确形 式。 Farming and nature are like two flowers on the same tree. When farming 11． (go) against nature, all kinds of environmental problems are the result. In ancient times, when people began using the land, farming was not 12． it is today. Early farmers moved around the country. They burnt a part of a forest and used this land for one or two years. When they could no 13． (long) grow crops on the land, they moved on and repeated this somewhere else. Agriculture in this way destroys nature and results 14． floods and droughts. 15． (fortunate), the beginning of this decade saw farmers’ 16． (recognize) of some old truths which were already known to ancient Chinese farmers. Farming should not go against nature. If the soil is too poor, chemicals can help improve 17． and grow better crops, but this may damage or destroy land 18． (surround) the farms. Instead, farmers should look for other methods. In the early 16th century, brothers Tan and Xiao Zao of Jiangsu Province bought fields along lakes at 19． low price nobody wanted because they were too wet. They built dikes(堤坝) around the fields turning the fields into fish ponds and they became fish farmers. They also planted fruit trees on the dikes and kept chickens and ducks. They were very 20． (success) farmers. （三） 阅读下面材料，在空白处填入适当的内容（不多于三个单词）或括号内单词的正确形 式。Food is considered as one of the basic needs of humans. The need for food in large quantities 21． (lead) to the invention of farming. Today, the important role of agriculture can 22． (understand) from the fact that almost eleven percent of the employment in the US is related 23． agriculture. Agricultural 24． (product) account for a large part of trade in the world. Today, agriculture is the power engine for economic development, 25． (especial) in developing countries. Food security, 26． is one of the major goals of the United Nations, focuses on the availability and accessibility of adequate food for all people. Agriculture plays 27． important role in achieving this goal. So farmers deserve our total support. It is our responsibility28． (improve) the lives of our farmers. We should realize that the world is comfortable because of the hard work of our farmers. We should recognize the 29． (important) of agriculture and give due respect to our farmers. It is because of them30． we are surviving in this world. 二、阅读选择 Today, some 815 million people suffer chronically（长期地） from hunger. And although this is significantly fewer people than the numbers we saw a decade ago, hunger still kills more people than AIDS, Tuberculosis（肺结核） and Malaria（疟疾） combined. On May 28th, we observe World Hunger Day. It is an effort to focus attention on the fact that despite an adequate availability of food nearly everywhere, globally, some 21,000 people die every day from hunger or malnutrition（营养不良）. People do not go hungry because the world does not produce enough food for everyone. According to the world Hunger Education Service, over the past three decades, significant growth in food production, along with improved access to food, helped reduce the percentage of chronically undernourished（营养不良的） people in developing countries from 34 percent to 15 percent