1、Period 4Using Language 学案设计 学习目标 1.To know the difference between chemical farming and organic farming. 2.To know the structure of an argumentative essay. 3.To know the writing skills of an argumentative essay,such as illustrating,giving examples or making contrasts. 4.To write an argumentative essa
2、y using what they will learn in this period. 课堂探究 Part Lead-in Activity 1Making predictions (1)Look at the title of the passage and try to guess what will be talked about in the passage. (2)If you were asked to write the passage under this title,what is your structure? Activity 2Picture guessing Her
3、e are 6 pictures.Try to find out which ones are about chemical farming and which are organic according to your background knowledge. Part Test our predictions Read the text quickly and silently and try to find what is the main idea of each paragraph.And then draw the map of the structure. Para.1 Par
4、a.2 Para.3 Para.4 Para.5 Part Read for details Read the text carefully and complete the table. Chemical farming advantag e A great way to. disadvan - tages 1.Kill not onlybut also. 2.Affect not onlybut also. 3.Crops are lacking in. Organic farming advantag es 1.The soil is rich in. 2.Keepfree of che
5、micals. 3.Avoid damage to. disadvan - tage Nowhere near able to. The writer s attitude He/She is for.But there is still a long way to. Part Read for the organisation and language Activity 1Read the text carefully again and find out the transitional words and think about their functions. Activity 2Di
6、scuss the following questions. (1)What other advantages and disadvantages of organic farming did the author not list? (2)Which kind of farming do you like?And why? PartWrite an argumentative essay giving your opinion on chemical or organic farming. Activity 1Complete the outline below. Topic sentenc
7、e:In my opinion,farming is preferable tofarming because Point 1 (Detail) Point 2 (Detail) Point 3 (Detail) Conclusion: Activity 2Use your outline to write a short essay giving your opinion on the topic,paying attention to using right transitional words. Activity 3Exchange your drafts with another pa
8、ir.Use this checklist to give them helpful feedback. Does the writer do a good job of expressing his/her opinion? Does each paragraph have one main idea? Does each paragraph have at least one detail to support its main idea? Does the writer sequence the points in logical order? Does the writer do a
9、good job persuading you to accept his/her opinion? Activity 4Polish your draft and share it with your partner. (设计意图:学生基于前面对文本内容的分析,对语言特点和结构的把握,同时在写作大纲的帮助下 完成写作任务。 学生交换初稿,利用评价清单润色改进自己的写作,使内容更加完整,符合逻辑,语言准确 恰当。) Part Homework 1.Put up the poster in your classroom or in a public place. 2.Appreciate you
10、r classmatesgood works and try to learn from them. Part 核心素养专练 Read the passage on page 92 and rewrite the passage using the same structure of “Chemical farming VS Organic farming”. 参考答案 Part Lead-in Activity 1 (1)What the text will talk about will include:the definitions of both kinds of farming an
11、d the advantages and disadvantages of each. (2)My structure may be like this: Activity 2 Picture 1 organic farming;Picture 2 chemical farming;Picture 3 organic farming;Picture 4 organic farming;Picture 5 organic farming;Picture 6 chemical farming. Part Test our predictions Para.1 Chemical farming he
12、lps fight crop disease and increase production.(advantage) Para.2 Three disadvantages of chemical farming.(disadvantages) Para.3 The definition of organic farming and one of its advantages.(advantage) Para.4 Other different methods of organic farming and their advantages.(advantages) Para.5 The disa
13、dvantage of organic farming and show the attitude of the writer to the readers.(disadvantage greater effort required to farm. (2)I like organic farming.Because organic food is more delicious and more healthy. PartWrite an argumentative essay giving your opinion on chemical or organic farming. Activi
14、ty 4 In my opinion,organic farming is preferable to chemical farming because of the benefits to the environment and people,and because organic food is more nutritious. To begin with,chemical farming harms the environment.Since chemical pesticides are not found in nature,and normal natural processes
15、cannot get rid of them.Instead,the chemicals tend to accumulate in the soil and water,and are absorbed in the food chain,where they poison wildlife and domestic animals. This affects us directly,because we end up eating plants,dairy products,eggs,and meat that have high levels of pesticides.Think ab
16、out it:The purpose of the pesticides is to kill “pests”.Something that can kill an insect probably is not healthy for a person to eat.While it may be true that the food we eat does not have enough pesticide in it to kill us immediately,over the years this pesticide may cause us health problems or gi
17、ve us diseases such as cancer. Finally,organic food is generally more nutritious than food grown with man-made chemicals.There was the case of watermelons literally exploding in the fields because they had been given chemicals to make them grow faster.The reason why they exploded was that they conta
18、ined too much water,because the farmers had used too many chemicals and the weather was unusually wet.As it turns out,such chemicals are commonly used in farming to grow larger crops more quickly.Do you really want to eat watered-down fruit or vegetables which have been rushed to market?They cannot
19、possibly taste as good as organic vegetables,nor can they be as nutritious. In closing,I would like to suggest buying organic food.Yes,the price is a little higher,but the small price we pay extra will bring us huge rewards in the end. Part 核心素养专练 Living in the Countryside VS Living in the City Alth
20、ough it is usually thought that living in the city has many benefits, and the people there enjoy the most convenience, now more and more university graduates prefer to live in the countryside rather than live in the city. They can stay with their family and friends. And at the same time, working in
21、the field of agriculture can offer them both a meaningful challenge and a good standard of living. For example, Li Dan, a woman who has returned home to start her own fruit-growing business, can earn six million yuan per year. Moreover, she has created more than 50 new jobs for others. Therefore, th
22、ese graduates not only earn a good living for themselves but improve and maintain the natural and economic environments in these places. Whats more, living in the hometown offers a strong support network for them and bring great help to them, which can relieve great pressure for them. In many people
23、s eyes, living in the city brings about much convenience for the people living there. However, living in the city is not all its cracked up to be. For example, the air there is so bad and transport is terrible. It is not easy for people to make a decent living there. As for me, I hope that I will choose to come back home to live the rest of my life there. I will do my best to make a good living and also devote myself to the contribution of the construction of my hometown.
