Unit5 Working the land Using Language Chemical Versus Organic Farming 课件 -2023-2024学年人教版高中英语选择性必修第一册

Unit 5 Working the land Chemical versus Organic farming 1.To learn the differences between chemical and organic farming 2.To learn to analyze advantages and disadvantages. 3.To advocate organic farming around us Learning aims Lead-in Do you know what they are doing? getting rid of weeds/pests fertilizing the soil Which kind of farming is better? 1. What is the text about? Chemical farming Organic farming pictures title 2. What type of writing is it? A. Narration(记叙文) B. Exposition(说明文) C. Argumentation(议论文) Pre-reading Fast reading Match the main ideas with the paragraphs Para 1-2 Para 3 Para 4 Para 5 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 chemicai farming Paragraph 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. D A bacteria and insects prohibited damage they cause grow too fast nutrition natural waste from animals Careful reading 6 Paragraph Main Idea Detail 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 . C B change the kind of crop every year different depths demand for food around the world 7 Comprehending 1.Why did many farmers welcome the introduction of chemical farming? A.Because it cost less than traditional farming. B.Because it can fight crop disease and increase production. C.Because it wasn’t harmful to people’s he