广东省高中英语Unit2Workingtheland_UsinglanguageChemicalororganicfarming教案.docx

Unit 2 Working the land-Using language Chemical or organic farming（授课日期： 年 月 日 星期 班级 ）授课题目Book4 unit2 Working the land-Using language Chemical or organic farming拟 课时第 课时明确目标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 Its no use waiting here,lets walk back.I remember seeing her somewhereI regret not following your advice.Even the cleverest child needs teachingStep2. 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 peoples 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 advantagea great way to stop crop disease and increase production disadvantagelong tern use of these fertilizers can cause damage to Step4. Useful expressions:1. lead to1). His carelessness led to the accident.2). This test is obviously bad because it leads to incorrect learning.2. focus on 1).You should focus your attention on your work.2). Focus your camera on those trees.3). Im so tired that I cant focus on anything today.3. . keep free from keep free from emotional reactions keep free from restrictionsWe 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 confidence1).Your vocabulary is gradually building