1、人教版人教版 Book 4(Reading , Speaking & Writing)Using language1VSStep1 Lead-in big and beautifulfresher, healthier, taste better2 to improve the output of the crops fertilizer herbicide pesticide 3natural fertilizer from animal wastechemical fertilizerHow many kinds of fertilizers do farmers use? 4 Which
2、 kind do farmers use when they are doing organic farming? 5Chemical fertilizers6 green food organic food 7Chemical or Organic Farming?8D. Long-term use of chemical fertilizerscan cause damage to the land and peoples health.B. Farmers and customers turn to organic farming.C. Other methods to keep the
3、 soil fertile. Step 2 Reading 4mA. Problems caused by chemical fertilizers.Task 1 Skim the passage and match the main idea with each paragraph.P1.P2.P3.P4.The main idea of this passage:_can cause _, so _ is becoming more popular.chemical fertilizersmany problemsorganic farming9 1. Why are chemical f
4、ertilizers so popular in farming today?2. What problems can be caused by using chemical fertilizers?3. What is organic farming? And what are the advantages of organic farming?4. What methods do the organic farmers use to keep the soil fertile?Task 2 Read the passage carefully and answer the followin
5、g questions101.Why are chemical fertilizers so popular in farming today?Many farmers welcomed them as a great way to stop crop disease and increase production.Paragraph 111Chemical fertilizer damage the land or the water supplydamage peoples healthGrow too fast to be full of nutrition2.What problems
6、 can be caused by using chemical fertilizers?12What problems can be caused by using chemical fertilizers?There are three problems.First, they can damage as well as . They also stay in the and . In addition, grow too fast to . first;second; finally;last but not least ,etc.Para 213 There are three pro
7、blems.First, they can damage as well as . They also stay in the and . In addition, grow too fast to . Tips: connectives（过渡词）（过渡词） and transitional phrases（过渡词）（过渡词） for developmentParagraph 214advantages3.What is organic farming? What are the advantages of organic farming?Make the soil richer in min
8、erals and more fertileHelp crops grow strong and healthy keep the air, soil, water and crops free from chemicals. (Environment-friendly)Paragraph 3Farming without using any chemicals.15 It is obvious that An advantage of organic farming is that What is even more important is that That is the reason
9、why many farmer have turned to organic farming.organic farming means growing crops without using any chemicals.the farmers focus on keeping their soil rich and free of disease.it can keep the air , soil, water and crops free from chemicals.16 The methods to keep the soil fertile1.using natural waste
10、 from animals as fertilizer. 2.changing the kind of crop in each field .3.planting crops to use different levels of soil.4.planting grass between crops to prevent The same goal : _ to grow good food and to avoid damaging the environment or peoples health.Paragraph 3 and 417para1: A new discovery of
11、scientists.para2: Several problems caused by using chemical fertilizers.para3: The advantages of using organic farming. para4: Some methods to keep the soil fertile.The structure of this passagePara1 TopicPara2 ProblemsPara3 AdvantagesPara4 Several methodsillustration（阐明）comparison conclusionThe typ
12、e of the article is_exposition（说明文）18Over the past half century, have become very common . welcomed them as a way to . Recently, however, we have been finding that they can cause damage to , even , to peoples health.What are some of the problems caused by ? First, Second, Last but not least, With th
13、ese discoveries, are beginning to turn to .The following words may help you.19Problems：1. cause white pollution2. easy to be broken3. difficult to break down4. do harm to the environment and peoples healthAdvantages：1. can be recycled and reused 2. save resources 3.cheap4. protect the environment20
14、Over the past half century, plastic bags have become very common in our daily life. We welcomed them as a convenient way to carry goods. Recently, however, we have been finding that they can cause damage to the environment, even worse, to peoples health.21 What are some of the problems caused by pla
15、stic bags? First, people often leave plastic bags here and there, making white pollution. Second, it takes a long time, more than 100 years ,to be exact, to break up .Last but not least, when heated, plastic bags can produce something harmful, which can build up in our body and eventually lead to ca
16、ncer or other illnesses.22 With these discoveries, we are beginning to turn to cloth bags. They can be used many times. People can save a lot of source in this way. It is also a good idea to make some by ourselves, which is interesting. Lets use cloth bags in our daily life instead of plastic bags,
17、not only for the environment protection, but also the sake of our health. 23Step 3 Supplementary readingPassage A What is mainly discussed in this passage?Why organic food cost moreLower yieldsRising labor costsHigh demand24Reasons Why Consumers Should Buy Organic FoodPassage Bhealthy and safe build
18、s strong future generationskeeps our water cleanresults in less soil erosionoffers outstanding flavorbecoming more affordablereasonsContinually purchase organic foodYour purchases now make a difference in the long run.25Step 4 Making a Dialogue (Pair work) Situation:You are a farmer and your partner
19、 is the customer, who doesnt know much about the organic food. You are persuading the customer to buy your organic food that is healthy and safe but more expensive.26Making a Dialogue (Pair work)Its better to This is good value becauseThe advantages areIts more expensive butYoull taste the differenc
20、e whenIts a great pity thatId preferbecauseI dont like becauseIf I have a choice Ill chooseWhats the advantage of?Id rather27Step 5 28Buy the Best Vegetables Here We only sell green food! Best choice at best prices!Look1.no chemical fertilizer23You and your family will stay fit and healthy if you ea
21、t green food.Main headingThis explains that you sell green food.Reasons to buy:Reason 1: Reason 2:Reason 3:(Conclusions)Why it is good value.brief ,persuasive, vivid nice , creativefour partsContentLanguageDesign29 If you want to be healthier and fitter you should eat organic food.Eat organic food t
22、o become healthy and fit. You ll find the taste of organic food more delicious than ordinary vegetables and fruit.Organic food tastes more delicious. 30Evaluation After this lesson, I am able to do the following things.VerywellQuitewellOKAlittleLittleExplain what organic farming isUse the correct phrases to try to persuade somebody to do somethingDesign a poster in EnglishThink local, choose organic Percentage 95%85%75%60 %40 %31 Use the information you have learnt today to write a report about organic farming and organic food.Homework32
