课件编号20633826

人教版(2019) 选择性必修第一册 Unit 5 Working the Land Using Language课件(共31张PPT)

日期:2024-09-17 科目:英语 类型:高中课件 查看:51次 大小:15365075Byte 来源:二一课件通
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(课件网) Using language Reading for writing 1. We are able to know the meanings of chemical farming and organic farming. 2. We are able to know the advantages and disadvantages of both chemical farming and organic farming. 3. We are able to master some transitional words or phrases in the text. 4. We are required to express our opinions on chemical farming and organic farming, and write an argumentative essay . Learning objectives It is fertilizer. What is the substance we put on the soil to make crops grow Pre-reading What kind of fertilizers do farmers use chemical fertilizers natural fertilizers Chemical farming farming using chemical pesticides and artificial fertilisers. Organic farming simply farming without using any chemicals. Reading for Writing Chemical Versus Organic Farming (表示两队)对; 与…相对/ 比较 Read the text on Page 55, match th main ideas (A-D) with the paragrphs. Then complete the sentences in the table. A. What organic farming is B. Why man-made chemicals are still used in farming C. Organic mehtods for producing rich soil D. The problems with chemical farming Paragraph 1&2 Paragraph 3 Paragraph 4 Paragraph 5 paragraph main idea detail 1-2 D ·Pesticides can kill helpful_____ ·Some pesticides have been_____because of the _____ ·Crops grown with chemical fertilisers usually _____ to be full of_____ 3 A ·Many organic farmers use _____ as fertiliser. bacteria and insects nutrition natural waste from animals prohibited the demage they cause to people and environment grow too fast 4 C ·They often _____ grown in each field _____ ·They also plant crops that use _____ of the soil to help keep it rich. 5 B ·Organic farming is now nowhere near able to meet high_____ change the kind of crop to produce rich soil diverse depth demand for food D The problems with chemical farming Para1-2 A What organic farming is Para3 C Organic methods for producing rich soil Para4 B Why man-made chemical are still used in farming Para5 Chemical farming Organic farming Thinking Read for stucture Para1: however Para2: for example, in addition, in turn, in fact, as for, but, and, as well Read for transitional words & phrases Para3: as an alternative, for example, also Para4: also, for instance, for example, but Para5: therefore argumentative writing Chemical farming Para1-2 1. Why did many farmers welcome the introduction of chemical farming (Para1) Advantages: Many farmers welcomed them as a great way to fight crop disease and increase production. 2. What concerns many people about the use of pesticides (Para1) Disadvantages: Their long-term use can sometimes harm both the land and people’s health. 3. What is one problem with the use of chemical fertilisers (Para2) Disadvantages: Crops grown with them usually grow too fast to be rich in nutrition. Organic farming Para3-4 4. How is organic farming different from chemical farming (Para3) Organic farming is simply farming without using any che ... ...

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