chemicalororganicfarming概要写作NewPPT学习教案

1、会计学1chemicalororganicfarming概要写作概要写作Newfertilize the soilto increase production of the crops fertilizer 第1页/共29页fertilizer 第2页/共29页chemical farming organic farmingBetter？第3页/共29页Chemical Or Organic Farming?第4页/共29页Recently, however, scientist have beenfinding that long-term use of the chemical ferti

2、lizers 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第5页/共29页Para 3.Para 4.With these discoveries, some farmers and man

3、y customers are beginning to turn to organic farming. Organic farmers also use many other methods to keep the soil fertile. 第6页/共29页 using language1 Over the past half century,_ (use) chemical fertilizers _ (become) very common in farming.2 Recently, however, scientists _(find) that long-term use of

4、 these fertilizers can _ (对造对造成破坏）成破坏）the land and, even more dangerous to peoples health.3 What are some of the problems _ (cause) by chemical fertilizers?usinghas become cause damage to have been findingcaused第7页/共29页to be full of _.Paragraph 2damagekillingstaybuild uplead tonutrition第8页/共29页1. Wh

5、at is organic farming? 2. What 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第9页/共29页 2. What are the advantages of organic farming? The farmers _ k

6、eeping their soil rich, _ disease and _ the air , soil, water and crops _ chemicals.Paragraph 3focus onreducingkeepingfree from第10页/共29页 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 leve

7、ls of soil. planting grass between crops to prevent The same goal : _ to grow good food and avoid damaging the environment or peoples health.Paragraph 3&41234第11页/共29页para1. A new discovery of scientists.para2. Several problems caused by using chemical fertilizers.para3. The advantages of using

8、organic farming. para4. Some methods to keep the soil fertile.The structure of this passageTopic(present situation)ProblemsAdvantagesMethods(conclusion)The type of the article is_exposition（说明文（说明文）Consolidation第12页/共29页over the past half century be common inrecently=in recent dayshave/has been doin

9、gcause damage toavoid doing sthbuild uplead to doing sthin additionmore A than Buse.as.make.richer in.every few yearsprefer doing sthprevent/stop.(from).1.在过去的半个世纪里在过去的半个世纪里2在在.有共同之处有共同之处3最近最近4现在完成进行时现在完成进行时（过去发生现在还在进行）（过去发生现在还在进行）5引起危害引起危害.6避免做某事避免做某事7逐步建立，增进逐步建立，增进8导致导致9另外，除此之外，并且另外，除此之外，并且10与其说与其

10、说B 不如说是不如说是A11用用.作为作为.12使使.更加富足更加富足13每几年每几年14宁愿做某事宁愿做某事15阻止某人做某事阻止某人做某事第13页/共29页over the past half centuty be common inrecently=in recent dayshave/has been doingcause damage toavoid damaging the environmentfor a long timebuild upover timelead to cancer or other illnessesin additionmore A than Bfocus

11、 onkeep.free ofuse.as.make.richer in.every few yearsprefer doing sthprevent/stop.(from).carry away1.在过去的半个世纪里在过去的半个世纪里2在在.有共同之处有共同之处3最近最近4现在完成进行时（过去发生现在还在进行现在完成进行时（过去发生现在还在进行）5引起危害引起危害. 6避免危害环境避免危害环境7很长一段时间很长一段时间8逐步建立，增进逐步建立，增进9随着时间随着时间 10导致癌症或其他的疾病导致癌症或其他的疾病11另外，除此之外，并且另外，除此之外，并且12与其说与其说B 不如说是不如说是A

12、13使聚焦于使聚焦于14使使.免于免于.15用用.作为作为.16使使.更加富足更加富足17每几年每几年18宁愿做某事宁愿做某事19阻止某人做某事阻止某人做某事20带走带走第14页/共29页概要写作评分标准第五档（概要写作评分标准第五档（2125points）：1.理解理解准确准确，涵盖，涵盖所有要点所有要点 2.准确准确使用相应的使用相应的语法结构和词汇语法结构和词汇 3. 完全完全使用使用自己的语言自己的语言。(60-80W) 4.有效有效地使用了语句间的地使用了语句间的连接成分连接成分，使概要，使概要结构紧凑结构紧凑contents (内容内容)language skills (语言语言)

13、structure (结构结构)第15页/共29页找出主题句或关键信息，忽略具体事例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，关键信息灵活运用语言，关键信息改编改编，使用使用自己语言自己语言添加有效连接成分，使概要结构紧凑添加有效连接成分，使概要结构紧凑读懂文章大意读懂文章大意近义词替换，改变主语，改变句式，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用非谓语动词结构做定语第16页/共29页Recently, however, scient

14、ists have been findingthat long-term use of the chemical fertilizers can cause damage to the land and, even moredangerous, to peoples health.主语主语topic sentence概要写作难点概要写作难点 How to express the key points by using your own words properly? (如何灵活诠释，规避抄袭的嫌疑如何灵活诠释，规避抄袭的嫌疑)谓语谓语第17页/共29页近义词替换近义词替换Recently, h

15、owever, 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 that using chemical fertilizers for a long time can cause damage to the land and also peoples health.

16、in recent days discoveredusing for a long time第18页/共29页What are some of the problems causedby chemical fertilizers?改变句式改变句式There are some of the problems causedby chemical fertilizers.第19页/共29页First, they damage the land by killing the helpful bacteria and pests as well as the harmful ones. Chemical

17、s 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 can

18、cer or other illnesses. In addition, fruit, vegetables and other food grown 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.第20页/共29页With these discoveries, some farmers and many

19、customers are beginning to turn to organic farming. Organic farming popular is becoming popular with some farmers and many customers. after these discoveries came out 改变主语改变主语第21页/共29页Organic farming is simply farming without using any chemicals. They focus on keeping their soil rich and free of dis

20、ease. A healthy soil reduces disease and helps crops grow strong and healthy. Organic farmers, 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 c

21、rops free from chemicals.u 忽略具体事忽略具体事例例 does not use第22页/共29页 Organic farmers also use many other methods to keep the soil fertile. There are make the land rich/ productiveThere are many organic farming methods for making the land healthy and productive. 第23页/共29页They often change the kind of crop i

22、n 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 such as wheat or corn that need rich and fertile soil. Organic farmers also plant crops to use

23、 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 it in the ground to become a natural

24、fertilizer for the next years crop. These many different organic farming methods have the same goal: to grow good food and avoid damaging the environment or peoples health.第24页/共29页They often change the kind of crop in each field every few years, for example, growing corn or wheat and then the next

25、year peas or soybeans. Crops such 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 put down deep roots. Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then lea