chemical-or-organic-farming概要写作New

1、Unit 2 Working 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 been finding

2、that 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 caused by chemical fertilizers?,Find out and underline the topic sentences of each paragraph.,Para1.,Para2.,Step 1 Topic sentence,Para 3.,Para 4.,Wit

3、h these 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 language 1 Over the past half century,_ (use) chemical fertilizers _ (become) very common in farming. 2 Recently, however, scient

4、ists _(find) that 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 fertili

5、zers?,First, they can _ 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

6、 are the advantages of organic 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

7、_ the air , soil, water and crops _ chemicals.,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 t

8、o prevent ,The same goal : _ _,to grow good food 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

9、 the soil fertile.,The structure of this passage,Topic (present situation),Problems,Advantages,Methods (conclusion),The type of the article is_,exposition（说明文）,Consolidation,over the past half century be common in recently=in recent days have/has been doing cause damage to avoid doing sth build up l

10、ead to doing sth in addition more A than B use.as. make.richer in. every few years prefer doing sth prevent/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A 11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 in

11、 recently=in recent days have/has been doing cause damage to avoid damaging the environment for a long time build up over time lead to cancer or other illnesses in addition more A than B focus on keep.free of use.as. make.richer in. every few years prefer doing sth prevent/stop.(from). carry away,1.

12、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 不如说是A 13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

13、，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 summary?,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 finding that l

14、ong-term use of the chemical fertilizers can cause damage to the land and, even more dangerous, to peoples health.,主语,topic sentence,概要写作难点,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 finding that long-term use of

15、the chemical fertilizers can cause damage to the land and, even more dangerous, to peoples health.,In recent days, scientists have discovered that 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

16、 some of the problems caused by chemical fertilizers?,改变句式,There are some of the problems caused by chemical fertilizers.,First, they damage the land 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 a

17、ffects 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 g

18、rown with chemical fertilizers usually grow too fast to be full of much nutrition. They may look beautiful, but inside there is usually more water than vitamins and minerals.,With these discoveries, some farmers and many customers are beginning to turn to organic farming.,Organic farming,popular,is

19、becoming popular with some farmers and many customers.,after these discoveries came out,改变主语,Organic farming is simply farming without using any chemicals. They focus on keeping their soil rich and free of disease. A healthy soil reduces disease and helps crops grow strong and healthy. Organic farme

20、rs, therefore, often prefer using natural waste from animals as fertilizer. They feel that this makes the soil in their fields richer in minerals and so more fertile. This also keeps the air, soil, water and crops free from chemicals.,忽略具体事例,does not use,Organic farmers also use many other methods t

21、o keep the soil fertile.,There are,make the land rich/ productive,There are many organic farming methods for making the land healthy and productive.,They often change the kind of crop in each field every few years, for example, growing corn or wheat and then the next year peas or soybeans. Crops suc

22、h as peas or soybeans put important minerals back into the soil, making it ready for crops such as wheat or corn that need rich and fertile soil. Organic farmers also plant crops to use different levels of soil, for example, planting peanuts that use the grounds surface followed by vegetables that p

23、ut down deep roots. Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving it in the ground to become a natural fertilizer for the next years crop. These many different organic farming methods have the same goal: to grow good f

24、ood and avoid damaging the environment or peoples health.,They often change the kind of crop in each field every few years, for example, growing corn or wheat and then the next year peas or soybeans. Crops such as peas or soybeans put important minerals back into the soil, making it ready for crops

25、such as wheat or corn that need rich and fertile soil. Organic farmers also plant crops to use different levels of soil, for example, planting peanuts that use the grounds surface followed by vegetables that put down deep roots. Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving