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.doc

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 something about chemical farming and organic 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）‎ 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、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)- （vt. 发现）‎ ‎【自主 合作 探究】‎ ⅠTask1 : （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 are chemical fertilizers so popular in farming today? ‎ ‎________________________________________________________‎ ‎2. Read paragraph 2 and find out the problems caused by using chemical My questions in this class ‎______‎ ‎_______‎ 2‎ ‎ fertilizers.‎ ‎______________________________‎ ‎3. Read paragraph 3-4 and answer: What are the advantages of organic farming?‎ ‎_____________________________________________________‎ ⅡTask2‎ ‎1. focus vt.‎&vi. 集中(注意力)；聚焦 n. [c,u] 焦点；中心点focus on集中于 ‎ ‎1). Focus your camera. 把照相机的焦距调准。‎ ‎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 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 people’s bodies over time and can _____ _____ 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 methods have the same goal: to grow good food and avoid _________ the environment or people’s 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》P32‎ ‎ ‎ 2‎