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1、Unit 5 Unit 5 Unit 5 Unit 5 WORKING THE LANDWORKING THE LANDWORKING THE LANDWORKING THE LANDusing languageusing languageusing languageusing languageRead the text“Chemical versus organic farming”and then answer the following question.Why did many farmers welcome the introduction of chemical farming?B
2、ecause it is a great way to fight crop disease and increase production.Match the main ideas(A-D)below with the paragraphs.A What organic farming is B Why man-made chemicals are still used in farming C Organic methods for producing rich soilD The problems with chemical farmingPara.1-2Para.3Para.4Para
3、.5DACBverse v.对：对抗；与。相对不定式作后置定语表语从句in widespread use 在广泛使用中 in discussion 在讨论中on display 在展出中 under construction 在建设中in/on/under+n：表示被动意义introduce v.引进；采用；介绍；引见；提出 myself 自我介绍introduction n.介绍；引见；引进；采用；引言；导论welcome v.欢迎；迎接；欣然接受；庆祝 adj.受欢迎的主语从句过去分词作后置定语定语从句宾语从句定语从句affect v.影响；感动；喜欢；假装 affection n.感情；
4、喜爱；关爱 effect n.影响 have an effect/influence/impact on 对。有影响 side effect 副作用 take effect 生效；起作用effective adj.有效的；生效的rich adj.富有的；肥沃的；昂贵的 be rich in 富有。；富含。过去分词作后置定语in turn:转而；进而；反过来make them ill:make+o+oc(adj.)in fact=as a matter of fact=in reality=actually 事实上 switch to 转向focus on doing 专注于keep the s
5、oil rich：keep+o+oc(adj.)使土壤肥沃keep sth free of sth 使。免受。伤害free adj.自由的；免费的；空闲的 v.免除；释放means n.方法；途径；手段make+o+oc(adj.)keep +o +oc(adj.)过去分词作后置定语主语从句表语从句现在分词作结果状语定语从句put down deep roots 扎根深处；生根；定居主语从句同位语从句不定式作后置定语定语从句keep/stop/prevent/discourage sb from doing 阻止某人做某事serve/meet/satisfy the demand for 满足
6、。的需求nowhere near able to meet the need 远远不能满足需要nowhere near enough 远远不够 nowhere near full 远远没有满nowhere near 远远不；远不及；离。很远sufficient adj.足够的；充足的 insufficient adj.不足的 keep+o+oc(adj.)Complete the sentences in the tables.Para.Main IdeaDetail 1-2 Pesticides can kill helpful _Some pesticides have been _ be
7、cause of the _Crops grown with chemical fertilisers usually _ to be full of _.bacteria and insects prohibited damage they cause to people and the environmentgrow too fast nutritionDPara.Main IdeaDetail 3Many organic farmers use _ as fertiliser.4 They often _ grown in each field _.They also plant crops that use _ of the soil to help keep it rich.5 Organic farming is nowhere near able to meet the high _waste from animals change the kind of crop every year different depths need/demand for food around the world natural ACBFinish your essay and revise it based on the feedback.