Unit 5 Working the land 复习导学案-2024届高三英语一轮复习人教版（2019）选择性必修第一册

Unit 5 Working the land 语境记单词 Known as the “father of hybrid rice”，Yuan Longping has devoted his life tothe Chinese farmers. Once,China had a serious shortage of food. To  tackle  this  crisis, alleviate hunger and get rid of poverty,Yuan was   Convinced that farmers must boost yields in the fields they had. One   Characteristic of hybrids showed that they  could attain a higher yield than   conventional crops. Through intense effort，Yuan  overcame enormous difficulties to develop the first hybrid rice that enabled farmers to expand their  output greatly. Today，it is estimated that about 60 percent of  domestic rice  consumption in China is comprised of crops generated from Yuan’s  Hybrid strains. Deep down，Yuan is still very much a farmer at heart. As a man of the  soil,he cares little for celebrity or money. Despite his wealth，Yuan Longping doesn’t  live a life of leisure. His assumption is that he envisioned  rice plants as  tall as  sorghum，with each ear of rice as big as a broom，and each grain of rice as huge as a peanut. His latest vision for rice growing in  salty land has also become a reality. 被誉为“杂交水稻之父”的袁隆平把一生奉献给了中国农民。中国的粮食曾经严重短缺。为了应对这个危机，缓解饥饿和摆脱贫困，袁隆平确信农民必须在已有土地上提高 产量。杂交作物的一个特点表明，它们可以获得比传统作物更高的产量。通过极大的努力，袁隆平克服了巨大的困难，培育出了第一代杂交水稻，使农民能够大幅度提高（水稻的）产量。据估算，现在中国国内大约60% 的大米消费是由袁隆平的杂交品种 形成的作物组成的。在内心深处袁隆平仍然还是一个纯粹的农民。作为一个土地之子，他不在乎名誉和金钱。袁隆平虽然很富有，却没有过悠闲的生活。他的设想是，他想象水稻植株像高粱一样高，每支稻穗像扫帚一样大，每粒稻米像花生一样大。他最近提出的在盐碱地种植水稻的愿景也已成为现实。 Farmers prefer chemical fertilizers to organic ones for an increase of output. But crops grown with chemical fertilizers lack nutrition,essential minerals and nice   flavour. Today chemical pesticides have been in widespread use in farming.  Pesticides can kill harmful bacteria and insects，but damage the nutritious crops. This，in turn，affects the animals and humans who digest them.Now some pesticides have been  prohibited in most countries. As an alternative,some farmers have switched to organic farming,because organic vegetables and grain are w