老师：Hello, welcome to my class. Today we'll go on exploring unifi, working the land, and we'll focus on reading for writing in this period. First of all, let's look at the learning objectives in this class. You will work out the content structure on language, features of the text, and write your opinion in an essay about chemical farming or organic farming.
老师：Now please look at the picture. What does the picture show? Actually, you can figure out information like where, what, why, and so on. Personally, I would say in the field a farmer is spraying the crops with pesticides to protect them from being damaged by insects and diseases. Then why do you think the farmer is wearing gloves and a mask, right? Because of the chemical pesticides. So it's always a good idea to use safety equipment when exposed to them because of the poisonous chemical in them. So with such harm, why do we still apply chemicals into the field?
老师：To find the answer, let's read a text first. Look at the title of it, chemical versus organic farming. Here birth is simply means or it is used to compare two things or ideas, especially when you have to choose between them. So what do you think will be included in the reading? Maybe the benefits of organic farming or the drawbacks of chemical farming? I guess you may have more predictions than I have right now. Please read the text, check your prediction and answer the questions.
老师：What is chemical farming and what is organic farming? Here we go. Well, as for chemical farming, from this sentence in paragraph one, chemical pesticides and artificial fertilizers have been in widespread use in farming since the middle of the 20th century. Here, widespread means common. We know chemical farming is farming using chemical pesticides and artificial fertilizers. As for organic farming, it is simply farming without using any chemicals.
老师：Now, since you have known the basic idea of the two kinds of farming, let's explore more about them. Now please read the text again and answer the questions. On page 56, why did many farmers welcome the introduction of chemical farming? What concerns many people about the use of pesticides? What is one problem with the use of Chemical Fertilizers? How is organic farming different from chemical farming? Why do organic farmers change the kind of crop grown in a field every year? What is the goal of using Organic Farming Methods? And do you think it can be reached? Why or why not now? Please wait again and find the answers.
老师：Here we go. Now let's check with what you got. Here we can find the answer to the first question in paragraph 1. Many farmers welcome them as a great way to find crop diseases and increase production. From this sentence in paragraph 1, we know the concern of many people about t
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