福建省厦门市集美区灌口中学高中英语 unit 2 using language教案 新人教版必修4(1).doc

福建省厦门市集美区灌口中学高中英语 unit 2 using language教案 新人教版必修4 备课日期课 型using language教学 目标知识与技能enable students to develop reading skills by skimming for main ideas and scanning for details.enable students to learn and talk about disadvantages of chemical farming and advantages of organic farming methods.过程与方法 enable students to train their ability to gain information by completing some tasks.enable students to make dialogues with the help of given pictures and sample dialogues.情感态度与价值观enable students to have a better understanding of organic farming and pay attention to the quality of food we eat.enable students to develop their sense of group cooperation and teamwork.教学重点enable students to learn to use strategies such as skimming, scanning, and so on to do their reading.enable students to use the information they gain in the reading to make a dialogue教学难点enable students to summarize the advantages and disadvantages of green food.教学方法scanning; skimming; group work教学用具blackboard; chalk; multi-media computer课时安排2 period教 学 内 容设计与反思板书设计: group competition: g1 g2 g3 g41)the advantages of green food：free of chemical fertilizersfull of nutritionpollution-free healthy and safegrown with natural fertilizer grown away from industrial areas and dirty water supplies2) the disadvantages of green food:people dont know about the food and how good it ismore expensiveit is not easy to buy teaching proceduresstep warming upguess what it is.it (is) what we often eat red and round rich in vitamin high in fiber a kind of fruit appleone apple a day keeps the doctor away.whats the difference between the two apples?not all apples are created equal!step reading(chemical or organic farming?)1. skimming skim and match the main idea with each paragraph.para 1 problems caused by chemical fertilizers.para 2 farmers and customers turn to organic farming.para 3 other methods to keep the soil fertile. para4 long-term use of chemical fertilizerscan cause damage to the land and peoples health.2. fast-readingread the passage and answer the following questions.1 why are chemical fertilizers so popular in farming today?they are a great way to stop crop disease and increase production.2. what is organic farming?organic farming is simply farming without using any chemicals.3. what is the goal of using organic farming methods?to grow good food and avoid damaging the environment or peoples health.3. scanning scan to find details of chemical farming and organic farming by filling the charts:1). what problems are caused by chemical farming?2). how do they cause the problems?what problemshow to cause by staying in the ground and underground waterby building up in peoples bodies over time4. fruit,vegetables and other food have less nutritionstep reading two read the short passage on p15 and get the information of the advantages and disadvantages of green food. the advantages of green foodthe disadvantages of green foodstep make a dialogueyou will be given three situations. you and your partner need to choose one from them and make a dialogue about green food. sample dialoguea: good morning! can i help you?b: id like to buy.a: which one would you like?b: i would rather a: its better to chooseb: whats the advantage of it?a: the advantage of it is thatstep assignment ( design a poster)now you work for a green food company. your boss asks you to design a poster for advertising the safety and importance of eating “green food”. main headi