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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Unit 2,Working the land,Using language,高一人教新课标版必修四,Unit 2高一人教新课标版必修四,预习检测,1.vt.,遗憾，惋惜,_ n.,遗憾，懊悔,_,2.v.,集中，聚集,_ n.,焦点（复数,_,）,3.vt.,减少，缩减,_,增加,_,4.vt.,发表意见，作出评论,_ n.,评论，议论,_,5.vt.,使迷惑，使为难,_ adj.,令人迷惑不解的,_ adj.,迷惑的，为难的,_ n.,混淆，困惑,6.n.,生产，制造,_ vt.,生产，制造,/,农产品,_ n.,产品，产物,_,7.n.,发现，发觉,_ vt.,发现,_ n.,发现者,_,8.n.,总结；摘要；概要,_ vt.,总结，概括,_,预习检测1.vt.遗憾，惋惜_ n.遗憾,Reading,CHEMICAL OR ORGANIC FARMING?,ReadingCHEMICAL OR ORGANIC FAR,It is fertilizer.,What is the substance we put on the,soil to make crops grow?,It is fertilizer.What is the,How many kinds of fertilizers do farmers use?,There are two kinds.They are chemical,fertilizers and organic ones.,How many kinds of fertilizers,chemical fertilizer,cow dung,用化学肥料和有机肥料的区别,:,chemical fertilizer cow dung用化,Organic Farming,Organic Farming,Learning aims:,Understand the text,especially some long and difficult sentences.,Learn some words and phrases:,confuse regret reduce focus comment build up lead to keep,free from/of,每,每隔,现在完成进行时,V+ing,作结果状语,Learning aims:Understand the t,Over past half century,use chemical fertilizers has become very commom in farm.,Recently,however,scientists have been found that long-term use of these fertilizers can cause damage on the land and,even more dangerous,to people,s health.,First,they damage the land by kill the helpful bacterias and pests as well as the harmful one.,This affects crops and,therefore,animals and humans,since chemicals get inside the crops and cannot just washed off.,These chemicals in the food supply build in people,s bodies over time.,On addition,fruit,vegetables and other food growing with chemical fertilizers usually grow too fast to be full of much nutritions.,killing,bacteria,ones,be,up,grown,nutrition,the,using,farming,finding,to,In,Over past half century,use ch,7.,Organic farmers,therefore,often prefer use natural waste from animals as fertilizer.,8.They often change the kind of crop in each field every few year,for example,grow corn or wheat and then the next year peas or soybeans.,9.Crops such as peas or soybeans put important minerals back into the soil,make it ready for crops such as wheat or corn what need rich and fertile soil.,10.Organic farmers also plant crops to use different levels of soil,for example,plant peanuts that use the ground,s surface following by vegetables that put down deeply roots.,using,years,growing,making,followed,that,planting,deep,7.Organic farmers,therefore,Expressions,1.,化肥,2.,对,造成损害,3.,洗掉某物,4.,导致,;,造成,(,后果,);,通往,5.,逐渐增强,建立,6.,另外,(,还有,),7.,使,免受,(,影响,);,8.,集中,(,注意力、精力,),于,9.,每隔几年,10.,转向，向,求助,11.,避免做,chemical fertilizers,cause/do damage to,wash off,lead to,bulid up,in addition(to),keepfree from/of,focus on,every few years,turn to,avoid doing,Expressions 1.化肥chemical fert,Exercises,1.His mistakes _ his failure.,2.These chemicals in the food supply_,in peoples bodies over time.,3.All roads _ Rome.,4.,Please _ your mind _ the following,problem.,5.Children should _ violence.,led,to,build,up,focus,on,lead,to,be kept free from,Exercises 1.His mistakes _,6.He likes basketball._,he likes,football.He likes basketball _,football.,7.Little Tom stuck to _ the mud _,his shoes by himself before he came in.,8.I tried to _(meet)him because,he always bores me.,9.The storm on May 3 _ great,_ people in Burma so far.,In,addition,in addition to,washing,off,avoid meeting,has,caused,damage,to,6.He likes basketball._,补全句子,1.I _ her _ her sister because they are so alike.,我把她和她妹妹弄混了，因为她们长的太像了。,2.They asked me so many _ questions that I got _.,他们问了我如此多令人迷惑的问题以致于我都迷惑了。,3.I _(miss)the good film.,我后悔没能看那部好电影。,4.I _ that you have failed again in the examination.,我很抱歉的告诉你，这次你又没考及格。,5.Much to my _,I must leave now.,非常抱歉，我现在必须走了。,6.We announce _ the death of the mayor.,我们遗憾地宣布市长去世了。,confused with,confusing,confused,regretted missing/having missed,regret to tell you,regret,with regret,补全句子1.I _ her _ h,7.Production costs have been reduced _ 30%.,生产成本降低了,30%,。,8.The population of this city has reduced _ 1.2 million.,这个城市的人口减少到了,120,万。,9.All eyes were focused _ the speaker.,大家的目光都集中在发言人身上。,10.Please _ the following problem.,请集中精力考虑以下这个问题。,11.He made no comment _ our proposal.,他对我们的建议没有作评论。,12.Can you _ the conclusion?,你能对这一结论发表意见吗？,13.-Will you resign,Minister?,-No comment!_,by,to,on,focus your attention on,on,commented on,无可奉告！,7.Production costs have been,14.What was it that _ say that?,是什么导致你那样说的？,15.This also _ the air,soil,water and crops _ chemicals.,这有助于空气、土壤、水和农作物免受化学物质的污染。,16.She g
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