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1、学学习习 Learning aims:指指导导 知识与能力：to master some sentence patterns of the text and know the即即时时 differences between chemical farming and organic farming 感感 悟悟 过程与方法：Further understand the passage 情感态度价值观：to enjoy the pleasure of study Learning key points: to know something about chemical farming and org
2、anic farming Learning difficult points: to know something about chemical farming and organic farming 【学案使用说明】1）熟读单词，为课文阅读做好准备。2）25 分钟阅读课 文，了解大意并完成练习题（自主学习及合作探究的题目） 【课前预习课前预习】 Task1.1)冲洗掉2）集中（注意力、精力）于 3）每隔几年4）对 造成伤害 5）逐步增强，建立6）导致;造成(后果);通往 7）另外，而且8）转向 9）使免受影响、伤害等10）减少疾病 11）化肥12）阻止土壤流失 13）增加产量14）富含营养
3、15）进入农作物内部16)有用的细菌和害虫 17）有机农作物18）避免做某事 Task2： 1.regret（vt./n.遗憾.惋惜（adj. 后悔的.遗憾（adv. 后悔地） 2. chemical （adj.化学的 n.化学药品）（n.化学家、 药剂师）（n. 化学） 3. production（n.生产、制造（v.生产、制造（n.产品、产物） My 4.nutrition（n.营养）-（adj.有营养的） questi 5.summary（n.总结、摘要）（vt.总结、概括） ons in 6. discovery(n.发现、发觉)-（vt. 发现） this 【自主【自主 合作合作 探
4、究】探究】 class Task1 :Task1 : （一）Match the main idea of each paragraph. _ para1:Several problems caused by using chemical fertilizers. _ para2:Some methods to keep the soil fertile. _ para3:A new discovery of scientists. _para4:The advantages of using organic farming. （二）Answer the following questions:
5、 1. Why are chemical fertilizers so popular in farming today? _ 2. Read paragraph 2 and find out the problems caused by using chemical fertilizers. _ 3. Read paragraph 3-4 and answer: What are the advantages of organic 教学内容教学内容 farming? _ Task2Task2 1. . focus vt.&vi. 集中(注意力)；聚焦 n.焦点；中心点 focus on 集中
6、于 1). Focus your camera. 把照相机的焦距调准。 2).Herbeautymakesherthefocusofattention. _ (短语)_集中(注意力/心思/精力)于 3). All eyes _ _ (集中于) her. 2. build up 逐渐建立；逐渐增强体质；积累；开发 1). You need more protein to build you up. 你需要增加蛋白质以增强体质。 2). He is now trying to _他正在努力逐步赢得好的声誉。 【当堂达标】【当堂达标】 In the past, farmers welcomed _
7、fertilizers to stop crop disease and increase_. However,Recently, scientists have been finding that many _can be caused by them. First, they damage the land by killing the helpful _ and pests. These chemicals get inside the crops and cannot just be _ _, which _ _ in peoples bodies over time and can
8、_ _ cancer or other illnesses. With these _, people are beginning to turn to _ farming, Which focus on keeping their soil rich and free of diseases and also _ the soil, water and crops_ _ chemicals. Organic farmers also use many other methods to keep the soil _. These many different organic farming
9、methods have the same goal: to grow good food and avoid_ the environment or peoples health. 【总结提升】【总结提升】 1. The new model will go into p_ next year. 2. Because of his poor n_, he has grown weaker and weaker. 3. Those countries are rich in _ (矿物的) resources. 4. New scientific d_ are being made every
10、day. 5. The group produces a monthly _ (摘要) of their research. 6. We must_ our expenses to 300 yuan a month. 【拓展延伸】【拓展延伸】 做优化P32 答案： Task1 1wash off 2.focus on 3.every few years 4.cause damage to 5.build up 6.lead to 7.in addition 8.turn to 9.keepfree from 10.reduce disease 11.chemical fertilizers 1
11、2.prevent wind or water from carrying away the soil 13.increase production 14.be full of much nutrition 15.get inside the crops 16.helpful bacteria and pests 17.organic farming 18.avoid doing Task2 1. regretful regretfully 2.chemist chemistry 3.produce product 4.nutritious 5.summarize 6.discover 自主
12、合作 探究 Ipara1 2 Many farmers welcomed them as a great way to stop crop disease and increase production There are three problems. First, they can damage as well as . They also stay in the and . In addition, grow too fast to The farmers focus on keeping their soil rich and free of diseaseand keeping th
13、e air , soil, water and crops free from chemicals. II 她的美丽使她成为了焦点。 focus ones attention onfocused on build up good reputation 当堂达标 Chemical、production、problems、bacteria、washedoff、buildup、 leadto、discoveries、organic、keeps、freefrom、fertile、damaging 总结提升 Producernutritionmineraldiscoveriessummaryreduce