高中英语 Unit 2 Working the land-Using language Chemical or

Unit 2 Working the land-Using language Chemical or organic

farming

（授课日期： 年 月 日 星期 班级 ）

Book4 unit2 Working the land 授课题目 ----Using language Chemical or organic farming 明确目标 第 课时 1、知识与技能：To help students read the passage Organic Farming. To help students to use the language by reading, listening, speaking and writing. 2、过程与方法:Show questions, read fast, find the main ideas, and then read carefully and finish all the tasks. 3、情感态度与价值观：let students realize the importance of organic farming 重点难点 重点：How to grasp the main idea of the passage. 难点：How to grasp the words and phrases and be able to use them freely. 课型 □讲授 □习题 □复习 □讨论 □其它 教 学 内 容 设 计 教师自备内容 拟 课时 Step1. Grammar revision(translate the following sentences by using Ving form ) 1.出国旅行时很激动人心的。 2. 在这儿等也没用，咱们走回去吧。 3. 我记得在哪儿见过他。 4. 我后悔没听你的劝告 5. 即使最聪明的孩子，也需要指教。 Travelling abroad can be very exciting It’s no use waiting here,let’s walk back. I remember seeing her somewhere I regret not following your advice. Even the cleverest child needs teaching Step2. Pre-reading 1. What do farmers usually put on the soil to make crops grow fast ? 2. How many kinds of fertilizers do farmers use? 3. Which kind do farmers use when they are doing organic farming? 4. Do you know about organic farming? Step3. Reading and finish the following two tasks: Task 1: Underline the topic sentence of each paragraph. P1:Long-term use of chemical fertilizers can cause damage to the land and people’s health. P2: Problems caused by chemical fertilizers. P3: Farmers and customers turn to organic farming. P4: Other methods to keep the soil fertile. Task 2 How many ways farmers use to help crops grow are mentioned in the passage: ways to help crops grow 1)organic farming use natural waste from animals as fertilizers change the kind of crop in each field every few years plant different crops with different lengths of roots plant grass between crops and then leave it in the ground 2)chemical fertilizers advantage a great way to stop crop disease and increase production disadvantage long tern use of these fertilizers can cause damage to … Step4. Useful expressions: 1. lead to 1). His carelessness led to the accident. 2). This test is obviously bad because it leads learning. 2. focus on 1).You should focus your attention on your work. 2). Focus your camera on those trees. 3). I’m so tired that I can’t focus on anything today. 3. . keep… free from keep free from emotional reactions keep free from restrictions We should keep women and children free from harm and pain . 4. build up build up a big library build up a fine reputation build up confidence 1).Your vocabulary is gradually building up. 2).You need more protein to build yourself up Step5. Homework Read the article again and learn the important expression by heart. 教学后记： to incorrect

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