Unit5 Working the land Using Language 课文精读课件-2023-2024学年高中英语人教版（2019）选择性必修第一册

Working The Land Unit 5 Using Language Unit 5 CHEMICAL VERSUS ORGANIC FARMING 化学耕作和有机耕作 Para.1 Chemical pesticides and artificial fertilisers have been in widespread use in farming since the middle of the 20th century. 自20世纪中期以来，化学农药和人工化肥在耕作中得到了广泛使用。 adj.与化学有关的；化学的 n.化学制品；化学品 n.杀虫剂；除害药物 adj.人工的；人造的；假的 n.肥料 adj.普遍的，广泛的 介词 现在完成时 Para.1 When they were first introduced, many farmers welcomed them as a great way to fight crop disease and increase production. 当它们第一次被引进时，很多农民喜欢使用农药和化肥，把它们作为防治农作物病虫害和提高产量的重要手段。 时状 作为 后定 v.欢迎，迎接；迎新；乐意接纳，欣然接受；乐于接受（已发生的事）；庆祝 Para.1 Over time, however, what some scientists have found is that their long-term use can sometimes harm both the land and people’s health. 然而，随着时间的推移，一些科学家发现长期使用农药和化肥会造成土地受损，对人们的健康造成危害。 随着时间的推移，逐渐地 主从 表从 adj.长期的 adj.长期的 Para.2 For example, pesticides can damage the land by killing not only harmful bacteria and insects, but also helpful ones. 例如，农药在杀死病菌和害虫的同时也会杀死有益的细菌和昆虫，从而破坏土地。 for instance 例如 通过 n.细菌 n.昆虫 不仅…而且… 通常用于替代一个已提到的名词，表示相同类型的另一个对象 Para.2 In addition, these chemicals can stay in the soil and underground water sources for a long time. 此外，这些化学物质可以在地里和地下水中保存很长时间。 此外，另外 n.化学（制）品 n.泥土；土壤；国土；领土 n.来源，出处；（问题的）原因，根源 v.（从某地）获得；找出……的来源 Para.2 This affects the crops grown on the land and, in turn, the animals and humans who digest them. 而这会影响生长在土地上的农作物，进而影响到消化它们的动物和人类。 状语后置 v-ed 后定 grow + sth. vt. 种植, 使长满 grow-grew-grown 相应地；转而；依次；轮流 定从 v.消化；领会；领悟 Para.2 Many people worry that these chemicals may make them ill and even cause cancer. 许多人担心这些化学物质会使他们生病甚至导致癌症。 宾从 make+宾语+宾补 Para.2 In fact, some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment. 事实上，像滴滴涕这样的杀虫剂在大多数国家已经被禁止了，因为它们对人类和环境造成了破坏。 事实上 v.（尤指以法令）禁止；阻止 定从 Para.2 As for chemical fertilisers, crops grown with them usually grow too fast to be rich in nutrition. 至于化肥，施过化肥的农作物通常生长得过快而营养不足。 至于 n.化肥 v-ed 后定 n.营养；滋养 Para.2 They may look beautiful on the outside, but inside there is usually more water th