Unit 5 Working the Land Using language Reading for writing 课件-2024-2025学年高中英语人教版（2019）选择性必修第一册

Evaluate chemical farming and organic farming Book 4 Unit 5 Using language 1 Learning objectives In this period, we will: understand the differences between chemical and organic farming and their advantages and disadvantages; learn about the author's writing techniques; learn about the structure of an argumentative essay; write an essay to express our views on one topic. Predication 1.What is the farmer doing in the picture? Why? 2.What is the farmer wearing? Why? Spraying chemical pesticides on the crops. v.喷洒 n.杀虫剂 Wearing a mask and hat. It may harm people’s health. 1. What is chemical farming? What is organic farming? Chemical Versus Organic Farming Read for title and type Organic farming is simply farming _________________. Chemical farming is farming with _________ , especially __________ _________ and __________________. while 2. What type of writing is this passage? A. Description B. Expository C. Argumentation D. Narration chemicals chemical pesticides artificial fertilizers without chemicals Para.1 Para.3 Read and Discuss 15minutes structure 1. Match the main ideas with the paragraphs on page 56. 2. Draw the structure of the text. details 1. Why did many farmers welcome the introduction of chemical farming? 2. What are the problems with chemical farming? 3. What are the benefits of organic farming? 4. What is the problem of organic farming? Requirements： 1. Read the passage independently and finish the tasks above in 10 minutes.(You can mark the answers in the text and use the scanning and skimming reading strategy.) 2. Discuss with your partners and try to solve your puzzles about the tasks above or about the text. take notes down while discussing mark the unsolved problems and be ready to put up questions A. What organic farming is. B. Why man-made chemicals are still used in farming. C. Organic methods for producing rich soil. D. The problems with chemical farming Para. Main idea Detail 1-2  Pesticides can kill helpful __________________.  Some pesticides have been __________ because of the __________________.  Crops grown with chemical fertilisers usually _____________ to be full of ______________. 3  Many organic farmers use _________________________ as fertiliser. 4  They often _____________________ grown in each field __________.  They also plant crops that use _______________ of the soil to help keep it rich. 5  Organic farming is nowhere near able to meet the high ________________________________. bacteria and insects prohibited damage they cause grow too fast nutrition natural waste from animals change the kind of crop every year different depths demand for food around the world D A C B Read for Main Idea and Details Read for structure Chemical Versus Organic Farming Draw the structure of the text. Evaluate chemical farming and organic farming Find more about the 2 kinds of farming: 1. Why did many farmers welcome the introduction of chemical farming? 2. What are the problems with chemical farming? 3. What are the benefits of organic farming? 4. What is the problem of organic farming? Many farmers welcomed them as a great way to fight crop diseases and increase production. Harm both the land and people’s health. Food: less nutrition, less essential minerals, and less flavour. It makes the soil richer in minerals and also keeps the air, soil, water and crops free of chemicals, aiming to avoid damage to the environment or to people’s health. Organic farming is nowhere near able to meet the high demand for food around the world. pros pros cons cons Read for writing——Expressions Use your own words to explain the whole text with the following mindmap. Chemical Farming Organic Farming what benefits problems what benefits problems Author’s Thinking There is still a long way to find a suitable solution that…… Farming with chemicals, especially chemical pesticides and artificial fertilizers a great way to fight crop diseases and increase production. Harm both the land and people’s health. Food: less nutrition, less essential minerals, and less flavour. Farming without chemicals makes the soil richer in minerals keeps the air, soil, water and crops free of chemicals, avoid damage to the environment or to people’s health. Organic farming is nowhere near able to meet the high demand for food around the world. How did the author connect these supporting details together logically? Read for writing---Find the Transitional Words(过渡词/连接词) 10      however, but, on the contrary, instead, on one hand … on the other hand contrast illustrate add information cause and effect introduce a new topic for example, for instance, in fact, such as, take … for example both…and…, not only…but also, in addition, and, also, as well, what’s more, besides, furthermore, moreover, what’s worse why…is because…, therefore, for this reason, thus, consequently, as a ressult as for, as an alternative Read for writing---Find the Transitional Words(过渡词/连接词) Thinking What is the author’s attitude towards organic farming? A.Negative B. ambiguous C. objective D. supportive What is your opinion on chemical or organic farming? Write an anrgumentative passage in the next period. Para.1 state your opinion Currently, there is a widespread concern over the issue that… As is often the case, … As far as I am concerned, however, … It can be said with certainty that ... So in my opinion, … Useful expressions for writing an argumentative essay: Para.2 supporting points and details First of all, there is no denying/doubt that... Moreover, …. For one thing, … For another,… As has been mentioned above, ... Personally, I will conclude by saying... Therefore, I have the reason to believe that... From what has been discussed above, we may draw the conclusion that… Para.3 give summary 13 Ending Beginning Body Topic sentence: In my opinion, ________ is preferable to _______ because____________. Argument 1 (Topic sentence) +detail: Point 1: To begin with, ___________.(Detail)_______. Point 2: What’s more, ____________.(Detail)_______. Point 3: Finally,_________________.(Detail)_______. Conclusion: In closing, I am fully convinced that__________________. Write an argumentative essay giving your opinion on the topic. 假如你是李华，最近你居住在美国的朋友Tom打算来中国定居，但他不知道该在城市还是农村安家，就此向你征求意见。请根据以下提示给他回一封电子邮件。 城市 农村 交通便利，教育条件好 污染少，空气新鲜 … …. … … 注意：1. 词数100左右； 2. 不要逐字翻译，并适当补充内容； 3. 开头和结尾已给出，不计入总词数。 Dear Tom， I'm very glad to hear from you, and I feel it a great honor to give you some information on the problem you mentioned. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ I hope it can help you make a right decision. Yours， Li Hua $$