已阅读5页,还剩22页未读, 继续免费阅读
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
Book4 Unit 2 Using Language,Lead in,In this unit we have learnt about a great man, do you still remember who he is? What is his achievement? Can you think of other ways to increase our crop harvest?,What is the matter we put on the soil which makes crops grow ? It is fertilizer.,chemical fertilizers natural fertilizers,Now, which one do you prefer?,A,B,Why?,Its a product of organic farming.,A,Its a product of chemical farming.,B,Chemical or Organic Farming?,Scanning,1. What is organic farming? Farming without using chemicals. 2. What is the goal of using organic farming methods? To grow good food and avoid damaging the environment or peoples health.,Part 1 (Para.1-2) Chemical farming part 2 (Para. 3-4) Organic Farming,Divide the text into two parts.,?,?,Task1: skim and match the main idea of each paragraph.,B. Long-term use of chemical fertilizers can harm the land and peoples health.,D. Farmers and customers turn to organic farming.,C. Organic farming methods to keep the soil fertile.,A. Problems caused by chemical fertilizers.,P1.,P2.,P3.,P4.,Task2: Para 1. Read and answer.,What advantages does chemical farming have? Chemical farming can stop crop disease and increase production.,Task4: Para. 2 Read and fill the form.,bacteria and pests,nutrition,land,Peoples health,cancer other illnesses,Task5: Para. 3 True or False,Organic farming means farming without using any chemicals. Organic farmers prefer using fertilizers to make the soil richer in minerals. Farmers want to keep their soil fertile and free of disease. Organic farming would pollute the environment.,natural waste from animals,not pollute the,T,T,F,F,To make the soil richer in minerals and therefore makes it more fertile.,Using natural waste from animals as fertilizer.,a organic farming method,A healthy soil can reduce disease and helps crops grow strong and healthy,What is the purpose?,Para. 4 find out the topic sentence,Can you find out 3 more methods of organic farming to keep the soil more fertile?,1:Changing the kind of crop in each field every few years.,2:Using different levels of soil,3:Planting grass between crops and leave it in the ground,Changing the kind of crop in each field every few years.,Using different levels of soil,1. To use different levels of soil.,3. To renew the minerals in the soil and help it become rich.,Planting grass between crops and leave it in the ground,2.To prevent wind or water from carrying away soil and act as a natural fertilizer.,Methods Purposes,Para. 4 Match each method with its purpose.,After reading, please tell me:,1. Is it chemical or organic farming? 2. How do you know?,Situation 1: The farmer is using fertilizers to keep the vegetable free from pest.,Chemical farming,Situation 2: Lao Wang grows soybeans in his field last year and grows corns this year.,organic farming,Grow different crops every year.,Situation 3: Lao Li throw the nitrogen fertilizer(氮肥) in his field to make his soil rich in minerals.,Chemical farming,Use chemicals,Situation 4: Li Hua only use natural fertilizers to grow his cabbage. Thats why his cabbage is damaged by pests.,Organic farming,Which kind of farming do you support?,Organic farming ?,Chemical farming ?,Competition,Lets find the advantages of Organic farming.,Eg: Organic farming is good for peoples health. Organic farming can ,Who can find more?,The advantages of Organic farming,Environmentally friendly Make the soil fertile Make full use of soil Do no harm to peoples health. Cost little money Can be used for a long time ,A stubborn farmers idea: Chemical Farming is better.,Help crops grow fast Kill pest Increase production Stop crop disease Easy to use Become effective in a short time ,Find disadvantages of chemical farming to persuade the farmer.,Chemical farming can help crops grow fast, but the crops may grow too fast to be full of nutrition.,Homework:,Write a composition about the advantages of organic farming and the disadvantages of chemical farming t
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 四年级上册数学教案-第6单元《除数是两位数的除法》|人教新课标
- 光学膜相关行业项目成效实现方案
- 便携式数字地震仪相关行业项目操作方案
- TOC自动在线监测仪相关行业项目成效实现方案
- 二年级数学上册教案-1.长度单位13-人教版
- 裘锡圭文字学概要资料复习大纲
- (运煤巷)掘进工作面施工组织设计
- PICC北京数据中心ISS服务器监控测试方案及计划1.0
- 全球及中国太阳能电池用玻璃料行业市场现状供需分析及市场深度研究发展前景及规划可行性分析研究报告(2024-2030)
- 全球及中国外周动脉疾病(PAD)治疗学行业市场现状供需分析及市场深度研究发展前景及规划可行性分析研究报告(2024-2030)
- 短视频矩阵运营方案PPT课件(带内容)
- 2022年试验检测师《专业科目(水运材料)》考试题库及答案
- 钢筋加工棚验算
- 反恐防范重点目标单位档案样本
- (新版)甲醇合成工(高级工)资格考试题库(完整版)
- 有关自豪的初二话题作文800字5篇
- Credit-Note-模版
- 竹木筷子生产项目可行性研究报告立项申请
- 《心的位置形态结构》PPT课件
- 理正钢支撑混凝土支撑锚索支锚刚度材料抗力计算表格[共3页]
- 莫泊桑项链英文话剧台词
评论
0/150
提交评论