1、山东省泰安市肥城市第三中学高中英语 Unit 2 Woking the land知识点学案1 新人教版必修4教学内容Learning aims: 知识与能力：to master some sentence patterns of the text and know the differences between chemical farming and organic farming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 so
2、mething about chemical farming and organic farmingLearning 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）学习指导即时感 悟【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、
3、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 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）4.nutrition（n.营养）- （adj.有营养的）5.summary（n.总结、摘要） （vt.总结、概括）6. discovery(n.发现、发觉)-
4、 （vt. 发现）【自主 合作 探究】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:1. Why
5、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 farming?_Task21. focus vt.&vi. 集中(注意力)；聚焦 n. 焦点；中心点focus on集中于 1). Focus your camera. 把照相机的焦
6、距调准。2).Her beauty makes her the focus of attention. _(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】In the past, farmers welcomed _ fertilizers to stop crop disease and
7、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 _ _ cancer or other illnesses. With t
8、hese _, 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 methods have the same goal: to grow g
9、ood food and avoid _ the environment or peoples health.【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 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】 做优化P32My questions in this class_