chemical-or-organic-farming概要写作New.ppt

1、Unit 2Working the land,fertilize the soil,to increase production of the crops,fertilizer,fertilizer,chemical fertilizers natural fertilizers,chemical farming organic farming,chemical fertilizers natural fertilizers,Better？,Chemical Or Organic Farming?,Recently,however,scientist have beenfinding that

2、 long-term use of the chemical fertilizers can cause damage to the land and,even more dangerous,to peoples health.,What are some of the problems causedby chemical fertilizers?,Find out and underline the topic sentences of each paragraph.,Para1.,Para2.,Step 1 Topic sentence,Para 3.,Para 4.,With these

3、 discoveries,some farmers and many customers are beginning to turn to organic farming.,Organic farmers also use many other methods to keep the soil fertile.,using language1 Over the past half century,_(use)chemical fertilizers _(become)very common in farming.2 Recently,however,scientists _(find)that

4、 long-term use of these fertilizers can _(对造成破坏）the land and,even more dangerous to peoples health.3 What are some of the problems _(cause)by chemical fertilizers?,using,has become,cause damage to,have been finding,caused,2.What problems can be caused by using chemical fertilizers?,First,they can _

5、the land by _ the helpful bacteria and pests.They also _ in the ground,_ in peoples bodies and _ cancer or other illnesses.In addition,it usually grows too fast to be full of _.,Paragraph 2,damage,killing,stay,build up,lead to,nutrition,1.What is organic farming?2.What are the advantages of organic

6、farming?3.What are the methods to keep the soil fertile?,1.Organic farming is farming without using any chemicals.,Haha,weve turned to organic farming.,Paragraph 3&4,2.What are the advantages of organic farming?The farmers _ keeping their soil rich,_ disease and _ the air,soil,water and crops _ chem

7、icals.,Paragraph 3,focus on,reducing,keeping,free from,The methods to keep the soil fertile using natural waste from animals as fertilizer.changing the kind of crop in each field.planting crops to use different levels of soil.planting grass between crops to prevent,The same goal:_,to grow good food

8、and avoid damaging the environment or peoples health.,Paragraph 3&4,1,2,3,4,para1.A new discovery of scientists.para2.Several problems caused by using chemical fertilizers.para3.The advantages of using organic farming.para4.Some methods to keep the soil fertile.,The structure of this passage,Topic(p

9、resent situation),Problems,Advantages,Methods(conclusion),The type of the article is_,exposition（说明文）,Consolidation,over the past half century be common inrecently=in recent dayshave/has been doingcause damage toavoid doing sthbuild uplead to doing sthin additionmore A than Buse.as.make.richer in.ev

10、ery few yearsprefer doing sthprevent/stop.(from).,1.在过去的半个世纪里2在.有共同之处3最近4现在完成进行时（过去发生现在还在进行）5引起危害.6避免做某事7逐步建立，增进8导致9另外，除此之外，并且10与其说B 不如说是A11用.作为.12使.更加富足13每几年14宁愿做某事15阻止某人做某事,over the past half centuty be common inrecently=in recent dayshave/has been doingcause damage toavoid damaging the environmen

11、tfor a long timebuild upover timelead to cancer or other illnessesin additionmore A than Bfocus onkeep.free ofuse.as.make.richer in.every few yearsprefer doing sthprevent/stop.(from).carry away,1.在过去的半个世纪里2在.有共同之处3最近4现在完成进行时（过去发生现在还在进行）5引起危害.6避免危害环境7很长一段时间8逐步建立，增进9随着时间 10导致癌症或其他的疾病11另外，除此之外，并且12与其说B

12、 不如说是A13使聚焦于14使.免于.15用.作为.16使.更加富足17每几年18宁愿做某事19阻止某人做某事20带走,What is a good summary?,概要写作评分标准第五档（2125points）：1.理解准确，涵盖所有要点 2.准确使用相应的语法结构和词汇 3.完全使用自己的语言。(60-80W)4.有效地使用了语句间的连接成分，使概要结构紧凑,contents(内容),language skills(语言),structure(结构),Step 1：Step 2:Step 3:Step 4:,找出主题句或关键信息，忽略具体事例,How to write a good su

13、mmary?,Conclusion,灵活运用语言，关键信息改编，使用自己语言,添加有效连接成分，使概要结构紧凑,读懂文章大意,近义词替换，改变主语，改变句式，使用简单句型，少使用定语从句，而用非谓语动词结构做定语,Para 1：,Recently,however,scientists have been findingthat long-term use of the chemical fertilizers can cause damage to the land and,even moredangerous,to peoples health.,主语,topic sentence,概要写作

14、难点,How to express the key points by using your own words properly?(如何灵活诠释，规避抄袭的嫌疑),谓语,近义词替换,Recently,however,scientists have been findingthat long-term use of the chemical fertilizers can cause damage to the land and,even moredangerous,to peoples health.,In recent days,scientists have discovered tha

15、t using chemical fertilizers for a long time can cause damage to the land and also peoples health.,in recent days,discovered,using for a long time,What are some of the problems causedby chemical fertilizers?,改变句式,There are some of the problems causedby chemical fertilizers.,First,they damage the lan

16、d by killing the helpful bacteria and pests as well as the harmful ones.Chemicals also stay in the ground and underground water for a long time.This affects crops and,therefore,animals and humans,since chemicals get inside the crops and cannot just be washed off.These chemicals in the food supply build up in peoples bodies over time.Many of these chemicals can lead to cancer or other illnesses.In addition,fruit,vegetables and other food grown with chemical fertilizers usually grow too fast to be