浙江省衢州市高中英语《Unit2 working the land2》教案 新人教版必修4

1 UnitUnit 2 2 workingworking thethe landland 教材分析 教材分析 analysisanalysis ofof teachingteaching materialmaterial This passage is a about organic farming Nowadays the chemical fertilizers are popular among farming It damages the land is bad for environment and people s health Some farmers and customers prefer the organic farming Students can learn something about it from this passage 学情分析 学情分析 analysisanalysis ofof thethe studentsstudents This passage is little difficult for our students There are some difficult sentences for them Teachers can help students to read them and try to translate them Meanwhile our s tudents can learn something new about farming Chemical fertilizers cause many problems so organic farming are popular among farming 教学目标教学目标 Teaching Teaching aims aims 知识目标知识目标 Knowledge Knowledge aims aims Words Words mineral reduce organic level whatever bacteria refer to year after year Sentences Sentences 1 Many farmers welcomed them as a great way to stop crop disease and increase production 2 First they damage the land by killing the helpful bacteria and pests as well as the harmful ones 3 These many different organic farming methods have the same goal to grow good food and avoid damaging the environment or people s health 能力目标能力目标 Ability Ability aims aims Enable students to master the main idea of the text and know the ways of organizing articles 情感目标 情感目标 EmotionalEmotional aimsaims help students learn how to enlarge the words and know the ways of the same topic 教学重点和难点 教学重点和难点 teachingteaching importantimportant pointspoints andand difficultdifficult pointspoints Teaching important points words and expressions main idea and some difficult sentences Teaching difficult points how to grasp the main idea of the passage how to grasp the words and phrases and be able to use them of the same topic 2 教学过程教学过程 Teaching Teaching procedures procedures StepStep 1 1 pre readingpre reading Q 1 How do you know about the organic farming Can you say something about it 2 As known to all chemical fertilizers can help the crops grow strong and big do you think it is good for our health And why StepStep 2 2 readingreading TaskTask 1 1 questionsquestions aboutabout thethe passage passage 1 What s the organic farming 2 What is the advantage of using natural fertilizers 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 TaskTask 2 2 structurestructure ofof thethe texttext This is the structure of the text read it and retell the text according to it TaskTask 3 3 exercisesexercises onon pagepage 1414 Because some of the exercises have been involved in Step II teachers can leave this part to students Organic Farming I Crops growing with natural fertilizers II Farmers prefer natural waste from animals Natural fertilizer Chemical fertilizer 1 make richer and 1 leaving is not good more fertili 2 reduce and help strong 2 grow year after year 3 the fertilizers kill from chemicals III Farmers change crops every twe or three years to make sure what is left 3 For Exercise 3 here is a simple Organic farming means crops growing with natural fertilizers instead of chemical ones Yhe natural fertilizer which is natural waste from animals does good to soil It makes the soil richer in minerals while chemical fertilizers damage the soil leaving chemicals fertilizers in the ground for a long time and killing both helpful and harmful bacteria and pests Organic farmers keep the soil rich and healthy by changing plants every two or three years planting different crops in different layers and planting grass between crops to prevent wind or water from carrying away the soil 板书设计板书设计 1 2 Retell the passage Using chemical fertilizers is popular because it can stop crop disease and increase 1 but long term use of these fertilizers can cause damage to the land and even to people s health Organic farming is to grow crops with natural but not 2 fertilizers Organic farmers 3 keeping their soil rich and 4 disease They prefer using natural waste from animals as fertilizers They think this makes the soil in their fields 5 minerals and so more 6 Organic farmers also use many other methods to keep the soil fertile They often change the kind of crop in each field 7 or plant crops to use different 8 of soil or plant grass between cops to prevent wind or water from 9 the soil However these methods have the same goal to Organic Farming I Crops growing with natural fertilizers II Farmers prefer natural waste from animals Natural fertilizer Chemical fertilizer 1 make richer and 1 leaving is not good more fertili 2 reduce and help strong 2 grow year after year 3 the fertilizers kill from chemicals III Farmers change crops every twe or three years to make sure what is left 4 grow good food and avoid damaging the 10 or people s health 问题研讨问题研讨 Problem Problem study study 课堂提问课堂提问 1 What s the organic farming 2 What is the advantage of using natural fertilizers 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 练练习习 ExercisesExercises onon pagepage 3535 ofof thethe exerciseexercise book book AdvantagesStopping crop disease and increase production Chemical farming DisadvantagesDamaging the land killing the helpful bacteria and pests Damaging people s health many chemical in the food supply can lead to cancer or other illnesses Food grows too fast to be full of much nutrition Goal To grow good food and avoid damaging the environment or people s health Organic farming MethodsUsing natural waste from animals as fertilizer Changing the kind of crop in each field every few years Using different levels of soil to plant crops Planting grass between crops 作业作业 Part 1 A level 单词拼写 1 After a long s he gained control of the business 5 2 Our foreign trade has e greatly in recent years 3 E your child with some special skills is necessary 4 The twins are so alike that I always c them with each other 5 He died of h because he had not eaten for days 6 As is known to all coal and iron are 矿物 7 If you keep staying in the sun for a long time you ll get 晒黑的 8 Every year we will 出口 a lot of rice to other countries 9 In the past three 十年 great changes have taken place in our hometown 10 It is suggested that the only way to do that is to 减少 expenses Keys Keys 1 1 strugglestruggle 2 2 expandedexpanded 3 3 EquippingEquipping 4 4 confuseconfuse 5 5 hungerhunger 6 6 mineralsminerals 7 7 sunburntsunburnt 8 8 exportexport 9 9 decadesdecades 1010 reducereduce Part 2 B level 选词填空 rid of be satisfied with focus on thanks to would rather make comments on be rich in 1 the doctor s timely help the boy was saved 2 The chairman told us that the meeting would how to deal with the pollution caused by the factories 3 You have given the correct answer I it 4 He read the contents himself and it in time 5 Last night they the dormitory mice which made much noise at night 6 As we know vegetables vitamins 7 I don t hope to leave so soon I stay home a day lpnger 6 Keys Keys 1 1 ThanksThanks toto 2 2 focusfocus onon 3 3 amam satisfiedsatisfied withwith 4 4 mademade commentscomments onon 5 5 ridrid ofof 6 6 areare richrich inin 7 7 wouldwould ratherrather Part 3 C level 根据课文内容填空 Using chemical fertilizers is popular because it can stop crop disease and increase 1 but long term use of these fertilizers can cause damage to the land and even to people s health Organic farm