Unit 5 Using languageppt课件-(2022新)人教版高中英语选择性必修第一册.pptx

1、Unit 5 Working the LandUnit 5 Working the LandUsing language Using language Chemical Versus Organic FarmingPart 2 While-ReadingPart 1Pre-ReadingPart 3Reading for writingPart 1Pre-Reading1. What is commonly used by farmers to increase crop production?2. What is getting popular on our table to maintai

2、n better health?3. An introduction of organic farmingPart 2While-Reading1. Look at the title and the picture on P55 and choose:1. What type of writing is this passage?A. narration B. expository C. argumentationD. instructions2. The passage is mainly to _ between chemical and organic farming2. Skim t

3、he text and fill:Chemical farming is farming using _ and _while organic farming is simply farming _ using any chemicals.3. Read the text, and then answer the questions on page 56 1 Why did many famers welcome the introduction of chemical farming? 2 What concerns many people about the use of pesticid

4、es ? 3 What is one problem with the use of chemical fertilisers ? 4 How is organic farming different from chemical farming ? 5. Why do organic farmers change the kind of crop grown in a field every year? 6 What is the goal of using organic farming methods ? Do you think it can be reached ? Why or wh

5、y not ?3. Read the text, and then answer the questions on page 561. Why did many famers welcome the introduction of chemical farming?2. What concerns many people about the use of pesticides ?3. What is one problem with the use of chemical fertilisers ?3. Read the text, and then answer the questions

6、on page 564. How is organic farming different from chemical farming ?5. Why do organic farmers change the kind of crop grown in a field every year?3. Read the text, and then answer the questions on page 566. What is the goal of using organic farming methods ? Do you think it can be reached ? Why or

7、why not ?4.Match the main ideas ( A D) below with the paragraphs . Then complete the sentences in the table .A. What organic farming isB. Why man - made chemicals are still used in farming C. Organic methods for producing rich soilD. The problems with chemical farming Para1-2Para3Para4Para54.Match t

8、he main ideas ( A D) below with the paragraphs . Then complete the sentences in the table .Para Detail1-2Pesticides can kill helpful _Some pesticides have been _ because of the _Crops grown with chemical fertilizers usually _ to be full of _3Many organic farmers use _ as fertilizer.4They often _ gro

9、wn in each field _.They also plant crops that use _ of the soil to help keep it rich5Organic farming is nowhere near able to meet the high _5. Read the text again, and fill:FarmingBenefitProblemSolutionChemical farmingOrganic farmingPart 3Reading for writingReading for writing1.Group discussion : do you support chemical or organic farming? Present more that have not been list by the author.FarmingBenefitsProblemsSolutionChemical farmingOrganic farmingHomeworkWrite your own argumentative essay:1.Use the points you have discussed in class.2. Use the structure on Page 57Thank youThank you