【導(dǎo)讀】讓學(xué)生了解農(nóng)業(yè)在整個人類生活中的重要性，了解農(nóng)村生活，了解中國農(nóng)民的生活現(xiàn)。于農(nóng)業(yè)方面的詞匯量，并通過寫一則海報提高學(xué)生的寫作水平。教師可通過討論讓學(xué)生互相學(xué)習(xí)，相互交流經(jīng)驗以增加他。PRE-READING部分有兩組問題。在第一組問題中，討論大米在東亞和東南亞國。家人民生活中的重要性；而第二組問題則提出世界部分地區(qū)所面臨的饑餓問題。生對世界的關(guān)注，培養(yǎng)學(xué)生的同情心。READING部分介紹中國著名的農(nóng)業(yè)科學(xué)家袁隆平的生平和他的雜交水稻。段描述了袁博士的外表——他更象一個農(nóng)民而不象一個科學(xué)家，農(nóng)村就是他做科研的殿堂。第三段告訴我們袁博士過著跟普通人一樣的生活卻干著偉大的事業(yè)。式，教師此時可引導(dǎo)學(xué)生找出其他的句子，以啟發(fā)學(xué)生理解-ing形式的句法功能。練學(xué)生v-ing形式在實(shí)際生活中的應(yīng)用能力。LEARNINGTIPS部分對如何提高表達(dá)能力提出建議。3將UsingLanguage中的Reading和設(shè)計成一節(jié)泛讀課。

　　

【正文】 ion, keep…free from, root b. 重點(diǎn)句型 With these discoveries, some farmer and many customers are beginning to turn to anic farming. Over the past half century, using chemical fertilizers has bee very mon in farming. 2. Ability goals 能力目標(biāo) Enable Ss to master the main idea of the text and know the ways of anizing articles. Teaching important and difficult points 教學(xué)重難點(diǎn) 1. How to grasp the main idea of the passage. 2. How to grasp the words and phrases and be able to use them freely. Teaching methods 教學(xué)方法 Show questions, read fast, find the main ideas, and then read carefully and finish all the tasks. Teaching aids 教學(xué)準(zhǔn)備 A recorder and a projector. Teaching procedures amp。 ways 教學(xué)過程與方法 Step Ⅰ Greeting and revision Step Ⅱ Reading There are three tasks in this step. First, teacher can ask students to read the articles one paragraph by one paragraph. Ask them some questions about these passages. There are three paragraphs in the article. In each passage, there are one or two questions. When students finish these questions, they will find that the structure of the text has turned up. T: In the last periods we talked about agriculture. As people’s living condition improves, more and more people are concerned about what they eat. In fact more and more people bee worried about the quality of the food they eat. Because more and more farmers use chemical fertilizer instead of natural waste from animals and they use poison to kill insects to protect their plants. So people now all want to eat green food which does no harm to their health. They are more concerned about anic farming. Now let’s read the text and know something about anic farming. Task 1: Questions about the text. Show the questions on the screen: 1. What is the anic farming? 2. What is the advantage of using natural fertilizer? 3. What is the disadvantage of using chemical fertilizers? 4. What’s the main idea of paragraph 3? 5. Why do farmers grow their crops in such ways? T: Boys and girls, today we’ll read the text one paragraph by one paragraph. Now please read the first paragraph quickly, and find the answer to the first question: what is the anic farming? S1: Organic farming refers to crops growing with natural rather than chemical fertilizers. T: Good. Now read the second paragraph quickly and find the answer to this question: what are the advantage of using natural fertilizer? S2: Make the soil richer in minerals and so more fertile. T: anything else? S3: Reduce diseases in crops and help them grow strong and healthy. Besides, keep the air, soil and water as well as the food supply free from chemical. T: What is the disadvantage of using chemical fertilizers? S4: Let me answer it. There are three disadvantages. Firstly, leaving chemicals in the ground for a long time is not good for the soil or the water supply. Secondly, farmers often grow the same crop year after year. As a result, the soil gets exhausted. Thirdly, chemical fertilizers kill both helpful and harmful bacteria and pests. Main idea of the passage Chemical fertilizers can cause many problems, so anic farming is being more popular. Structure of the text I using chemical fertilizers for a long time can hurt the land and also people’s health II Problem caused by chemical fertilizers 1. Damage the land by killing the helpful bacteria and pests as well as the harmful ones 2. Lead to cancer or other illness. 3. Food grown with chemical fertilizers look beautiful, but inside there is usually more water than vitamins and minerals. Ⅲ Organic farming is being more popular with some farmers and many customers after these discoveries came out. IV Other methods to keep the soil fertile.