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1、fertilize the soilto increase production of the crops fertilizer 第1页/共29页第一页，共30页。fertilizer chemical fertilizers natural fertilizers第2页/共29页第二页，共30页。chemical farming organic farming chemical fertilizers natural fertilizersBetter？第3页/共29页第三页，共30页。Chemical Or Organic Farming?第4页/共29页第四页，共30页。Recently
2、, however, scientist have beenfinding 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 causedby chemical fertilizers?Find out and underline the topic sentences of each paragraph.Para1.Para2.Step 1 To
3、pic sentence第5页/共29页第五页，共30页。Para 3.Para 4.With 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. 第6页/共29页第六页，共30页。 using language1 Over the past half century,_ (use) chemical fertilizers
4、 _ (become) very common in farming.2 Recently, however, scientists _(find) that long-term use of these fertilizers can _ (对造成(zo chn)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 find
5、ingcaused第7页/共29页第七页，共30页。2. What problems can be caused by using chemical fertilizers? 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 2da
6、magekillingstaybuild uplead tonutrition第8页/共29页第八页，共30页。1. What 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页第九页，共3
7、0页。 2. What are the advantages of organic farming? The farmers _ keeping their soil rich, _ disease and _ the air , soil, water and crops _ chemicals.Paragraph 3focus onreducingkeepingfree from第10页/共29页第十页，共30页。 The methods to keep the soil fertile using natural waste from animals as fertilizer. cha
8、nging 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 and avoid damaging the environment or peoples health.Paragraph 3&41234第11页/共29页第十一页，共30页。para1. A new discovery of scientists.para2. Seve
9、ral 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 passageTopic(present situation)ProblemsAdvantagesMethods(conclusion)The type of the article is_exposition（说明文）（说明文）Consolidation第12页/共2
10、9页第十二页，共30页。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.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现在完成进行现在完成进行(jn
11、xng)时时（过去发生现在还在进行（过去发生现在还在进行(jnxng)）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页第十三页，共30页。over the past half centuty be common inrecently=in recent dayshave/has been doingcause damage toavoid dam
12、aging the environmentfor 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 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现在现在(xinzi)完成进行时（过去发生现在完成进行时（过去发生现在(xinzi)还在进行）
13、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A13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页第十四页，共30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.理解准确，涵盖所有要点理解准确，涵盖所有要点 2.准
14、确使用相应准确使用相应(xingyng)的语法结构和词汇的语法结构和词汇 3. 完全使用自己的语言。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，使概要结构有效地使用了语句间的连接成分，使概要结构紧凑紧凑contents (内容内容(nirng)language skills (语言语言(yyn)structure (结构结构)第15页/共29页第十五页，共30页。Step 1：Step 2:Step 3:Step 4: 找出主题句或关键(gunjin)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
15、(xnx)改编，使用自己语言添加有效连接成分(chng fn)，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第16页/共29页第十六页，共30页。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(zhy)topic sentenc
16、e概要写作概要写作(xizu)难点难点 How to express the key points by using your own words properly? (如何灵活如何灵活(ln hu)诠释，规避抄袭的嫌诠释，规避抄袭的嫌疑疑)谓语第17页/共29页第十七页，共30页。近义词替换近义词替换(t hun)Recently, however, scientists have been findingthat long-term use of the chemical fertilizers can cause damage to the land and, even moredang
17、erous, 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 discoveredusing for a long time第18页/共29页第十八页，共30页。What are some of the problems causedby chemical fertilizers?改变改变(
18、gibin)句式句式There are some of the problems causedby chemical fertilizers.第19页/共29页第十九页，共30页。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 affects crops and, therefore, ani
19、mals 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 u
20、sually 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页第二十页，共30页。With these discoveries, some farmers and many customers are beginning to turn to organic farming. Organic farming popular is becoming popul
21、ar with some farmers and many customers. after these discoveries came out 改变改变(gibin)主语主语第21页/共29页第二十一页，共30页。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 health
22、y. 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 crops free from chemicals.u忽略具体忽略具体(jt)事例事例 does not use第22页/共29页第二十二页，共30页。
23、 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页第二十三页，共30页。They often change the kind of crop in each field every few years, for example, growing
24、 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 different levels of soil, for example, planting p
25、eanuts 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 fertilizer for the next years crop. These many dif
26、ferent organic farming methods have the same goal: to grow good food and avoid damaging the environment or peoples health.第24页/共29页第二十四页，共30页。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 pe
27、as 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
28、 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 food and
29、 avoid damaging the environment or peoples health.第25页/共29页第二十五页，共30页。 In recent days, scientists have discovered that using chemical fertilizers for a long time can cause damage to the land and also peoples health. There are several problems caused by chemical fertilizers. They damage the land, sta
30、y in the water for a long time and get into peoples bodies through their food.Summary第26页/共29页第二十六页，共30页。 Organic farming is becoming more popular with some farmers and many customers. It does not use any chemicals. There are many organic farming methods for making the land healthy and productive. All of these methods try to produce good food and to keep the environment and peoples health.第27页/共29页第二十七页，共30页。第28页/共29页第二十八页，共30页。感谢您的欣赏(xnshng)！第29页/共29页第二十九页，共30页。内容(nirng)总结fertilize the soil。prevent/stop.(from).。4现在完成进行时（过去(guq)发生现在还在进行）。感谢您的欣赏第三十页，共30页。
