Unit 2 working the land Using language ( Reading & Writing )First, buy or select the seeds from the shop.The process of farmingshopSecond, plow（犁田） or turn over the soil.Third , sow the seeds in the soil. Finally, harvest our grain. to increase production of the crops fertilizers fertilizer How many kinds of fertilizers do you know? chemical fertilizers natural fertilizerschemical farming organic farming chemical fertilizers natural fertilizersBetter？Chemical Or Organic Farming?Effects of chemical fertilizer Problems caused by chemical fertilizers.P1.P2.Farmers and customers turn to organic farming. (advantages)Other methods to keep the soil fertile. P3.P4.Task 1. Skimming for the main ideaSkimming: read the passage quickly to get a general ideaYou can get it from the first, the last paragraph and also topic sentence Reading skill:Effects of chemical fertilizer Problems caused by chemical fertilizers.P1.P2.Farmers and customers turn to organic farming. (advantages)Other methods to keep the soil fertile. P3.P4.Task 1. Skimming for the main idea1.Why are chemical fertilizers so popular in farming today? 2. What problems can be caused by using chemical fertilizers?3. What is organic farming?4. What is the purpose of using organic farming methods？Task 2 ScanningScanning: skip(跳读跳读)the passage quickly to find the details or specific informationReading skill:1.Why are chemical fertilizers so popular in farming today? 2. What problems can be caused by using chemical fertilizers?3. What is organic farming?4. What is the purpose of using organic farming methods？Task 2 ScanningBecause they can stop crop disease and increase production. First, they can damage the land by killing the helpful bacteria and pests. They also stay in the ground, build up in peoples bodies and lead to cancer or other illnesses. In addition, it usually grows too fast to be full of nutrition.Organic farming is farming without using any chemicals. To grow good food and to avoid damaging the environment or peoples health.Para1 Topic Para2 ProblemsPara3 AdvantagesPara4 Methodsillustration（阐明）（阐明）comparison conclusionThe type of the article is_Exposition（说明文）（说明文）The structure of this passage请以请以“Plastic or Cloth bags?”为题为题模仿模仿这篇文这篇文章的篇章结构和句子结章的篇章结构和句子结构去写一篇说明文。构去写一篇说明文。使用塑料袋的害处有：使用塑料袋的害处有：1.“白色污染白色污染”的主要来源；的主要来源；2.不可回收再利用；不可回收再利用；3.燃烧污染空气；燃烧污染空气；4. 污染土壤和地下水。污染土壤和地下水。使用环保袋的好处有：使用环保袋的好处有：1.可以大量减少塑料袋的使用；可以大量减少塑料袋的使用； 2.使用寿命比纸袋长；使用寿命比纸袋长； 3.可以循环利用；可以循环利用； 4.价格低廉，易于推广。价格低廉，易于推广。Part1: Brief introduction of the present situation. (Effects)part2: The problems caused by using plastic bags.Part3: The advantages of using cloth bags. How many parts are there in your composition? What does each part talk about?TipsPart4: Conclusion.Plastic Or Cloth Bags?Pre-writing5-stepThe method of writing Step1: choose the right tensechoose the right tense(时态时态) )_ Step2: key wordskey words( ( ( (关键词关键词)_)_ Step3: put words into sentenceput words into sentence( (连词成句）连词成句） Step4: put sentences into articleput sentences into article（连句成文）（连句成文） Step5: correcting(检查校对）检查校对）past/ present / future ?Some conjunctions(连词）连词）: white pollution , recycle , reuse First of all, firstly, secondly, whats more, in addition, not only but also, for one thing , for another, on the one hand, on the other hand, last but not least, in my opinion , as far as I am concerned, Pre-writing Over the past half century, have become very common , welcome them as a .way to . Recently, however, we have been finding that they can cause damage to , even to people health. What are some of the problem caused by .? First of all, whats more/ in addition, Last but not least With these discoveries, are beginning to turning to . For one thing . For another, / on the one hand, on the other hand, All in all,/In my opinion, / As far as I am concerned, lets welcome and say no toWhile-writingChallenge yourself Prepare a composition “Plastic Or Cloth Bags?”While-writing使用塑料袋的害处有：使用塑料袋的害处有：1.“白色污染白色污染”的主要来源；的主要来源；2.不可回收再不可回收再利用；利用；3.污染空气，土壤，地下水污染空气，土壤，地下水使用环保袋的好处有使用环保袋的好处有：1.大量减少塑料袋的使用；大量减少塑料袋的使用；2.使用寿命比使用寿命比纸袋长；纸袋长；3.可以循环利用；可以循环利用；4.价格低廉，易于推广。价格低廉，易于推广。 “Plastic Or Cloth Bags?” Over the past half century, have become very common What are some of the problem caused by .? First of all, secondly, whats more/ in addition, With these discoveries. , are beginning to turning to . For one thing, . For another, / on the one hand, on the other hand, Last but not least. In my opinion, / As far as I am concerned, lets welcome and say no to green food organic food What can we learn from the lesson?Healthy life Homework1.Read the text more carefully after class, and underline some useful language points.2.Finish the writing.The following words may help you. Over the past half century, have become very common , welcome 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 problem caused by .? First of all, whats more/ in addition, Last but not least With these discoveries, are beginning to turning to . For one thing, . For another, / on the one hand, on the other hand, All in all,/In my opinion, / As far as I am concerned, lets welcome and say no to使用塑料袋的害处有：使用塑料袋的害处有：1.“白色污染白色污染”的主要来的主要来源；源；2.不可回收再利用；不可回收再利用；3.燃烧污染空气；燃烧污染空气；4. 污染土壤和地下水污染土壤和地下水。使用环保袋的好处有：使用环保袋的好处有：1.可以大量减少塑料袋可以大量减少塑料袋的使用；的使用； 2.使用寿命比纸袋长；使用寿命比纸袋长； 3.可以循环利用；可以循环利用； 4.价格低廉，易于推广价格低廉，易于推广While-writing