Unit5 Working the land Using Language课件-2024-2025学年高中英语人教版（2019）选择性必修第一册

Unit 5 Working the land Using Language 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 What can we put on the soil to make it grow? chemical organic ________ fertilizers ________ fertilizers fertilizers Lead-in Prepare for structure Prepare for content Production Homework 3 CHEMICAL VERSUS ORGANIC FARMING vs. Which one is better? Which one do you support? 化学农业 有机农业 Lead-in Prepare for structure Prepare for content Production Homework 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 Organic methods for producing rich soil Paragraph 5 Read for the main idea What organic farming is The problems with chemical farming Why man-made chemicals are still used in farming Paragraph 1&2 Paragraph 3 Paragraph 4 A. C. B. Part 1 (para 1&2) The _______________ and _______________ of chemical farming. Part 2 (para 3&4) What organic farming is and how it keep the _______ rich. Part 3 (para 5) conclusion choose its structure. Lead-in Prepare for structure Prepare for content Production Homework benefits problems soil P1 P2 P3 P4 P5 P1 P1 P5 P5 P2 P2 P3 P4 P3 P4 7 argument supporting detail 1 supporting detail 2 supporting detail 3 supporting detail 4 supporting details Find out the argument and the supporting details. Lead-in Prepare for structure Prepare for content Production Homework How did the author connect these supporting details together logically? different conjunctions （连接词） for example not only…but also in addition in fact as for but as well … Lead-in Prepare for structure Prepare for content Production Homework To make the passage more coherent, we'd better use some transitions between ideas. Examine these signposts and name their functions. Transition words Function For example,… Illustrating/support your ideas …, but also… Adding more information and emphasising In addition,… Adding more information In turn,… Sequencing In fact,… Illustrating / Emphasizing As for… Introducing a new topic / thing …, but… Contrasting …, and… as well Adding more information Read for transitional words & phrases 10 Passagetiona (Para.1-2) Advantages Disadvantages 1. 2. harming the land: killing harmful __________________ as well as _________________ harming people’s health: These chemicals may make people _____ and even _______________ Crops grow too fast to be ___________________. bacteria and insects the helpful ones ill rich in nutrition cause cancer fight crop disease increase production Read for information Chemical farming 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 Part 2 (para 3&4) What organic farming is and how it keep the soil rich. supporting details Benefit: keep the soil rich. Problem: can’t meet the high demand. Lead-in Prepare for structure Prepare for content Production Homework What are the organic methods mentioned in the text (Para3&4)? 1. use natural waste from animals as fertilizer. 2. change the kind of crop grown in each field every year. 3. plant diverse crops that use different depth of soil. Read for information Organic farming to make the soil richer in minerals to put important minerals back into the ground to keep the soil rich chemical farming organic farming benefits problems fight crop disease increase production lower cost crops look beautiful outside ...... avoiding damage to the environment or to people's health ...... harm the land harm people’s health harm the environment crops are less in nutrition ...... cannot meet the demand for food more efforts and higher cost smelly gases ...... summary and brainstorming 5 yuan / kg 30 yuan / kg Normal tomatoes Organic tomatoes Draw an outline Lead-in Prepare for structure Prepare for content Production Homework 14 Use your outline to write an short argumentative essay giving your opinion on chemical or organic farming. Lead-in Prepare for structure Prepare for content Production Homework P57 2) 10分 10分 10分 10分 10分 10分 Lead-in Prepare for structure Prepare for content Production Homework Lead-in Prepare for structure Prepare for content Production Homework Homework Polish your essay, and hand in it tomorrow. Thank you! $$