chemical-or-organic-farming-教案.docx
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1、Chemical or Organic Farming? (Reading)Teaching aims:1 Develop students reading skills by skimming for main ideas and scanning for details.2 Have students learn and talk about disadvantages of chemical farming and advantages of organic farming.3 Master some key words and phrases: chemical, organic, b
2、uild up, lead to, keepfree from, focus on, production, cause damage to.Important and different teaching points:1. Enable students to learn to use strategies such as skimming, scanning, and so on to do their reading.2. To understand the main ideas by grasping some important information.Teaching aids:
3、 A multimedia project, colour chalks, text, workbook.Teaching procedure:Step . Lead in1. Self introduction: Good morning, students, my name is Li Ou, you can call me Mrs. Li or Teacher Li. Hope we can have a good time in this class. Today, we are going to learn more about unit 2 working the land. 2.
4、 Ask student: Do you play QQ farming? Do you know how to play it? Answers: First, we need to buy or select the seeds from the store. Second, we need to plow or turn over the soil. Third, we sow the seeds in the soil. Finally, we can harvest our grain. In order to increase production of the crops, we
5、 need to water the crop, rid the soil of the weed, and kill off the pest. Tips: increase production reduce production unproductive T: Sometimes, we also use this one to fertilize the soil. What is it?S: It is fertilizer.T: How many kinds of fertilizers do you know?S: There are two kinds. They are ch
6、emicalnatural fertilizers.Step . PresentationIt is chemical farming by using chemical fertilizers and it is organic farming by using natural fertilizers. Which one is better, chemical or organic farming?Today well know it after learning the reading, open the book and turn to page14.Step . Reading1.
7、SkimmingSkim to find the main idea for each paragraph.Para1. Effects of chemical fertilizerPara2. Problems caused by chemical fertilizers.Para3. Farmers and customers turn to organic farming.Para4. Other methods to keep the soil fertile.2. Scanning1. Why are chemical fertilizers so popular in farmin
8、g today? B ( Para1 )A. Because they are expensive.B. They are a great way to stop crop disease and increase production.C. They can cause damage to the land.D. They are benefit for peoples health. 2. What problems can be cause by using chemical fertilizers? ( Para2 )Answer: First, they can damage_ th
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