人教必修4Unit2Workingtheland.ppt

Unit 2 Working the landRevision(personal information):nName:nNationality:nBorn:nOccupation:nEducation:nDream:Yuan Longping Chinese in 1931; in a poor family a scientist/farmerSouthwest Agriculture College 1. saw rice plants as tall as sorghum 2. to export his rice1. grow rice that has a high output2. find ways to grow more rice3. circulate his knowledge abroad4. give money to equip others for their researchAchievementsHobbies1. playing his violin2. listening to violin music3. playing mah-jong4. swimming5. reading6. riding his motorcycle to his rice fieldsPersonal information: Organic Farming:Discussion: What is the meaning of this title? What is the advantages of having “green food”? How can farmers produce organic food?Listening (True or False):nAll farming must be organic farming. ( )nAll fertilizers can make the soil fertile and rich, so they are the same. ( )nThe organic farmers prefer to use natural waste from animals only because they are cheap. ( )nThe soil gets exhausted because farmers grow different crops. ( )nOrganic farmers insist on changing crops every second or third year. ( )TFFFFRead again and answer:nWhat is the main idea of this passage? This passage tells us something about organic farming. It means growing crops without chemical fertilizers which damage the soil. The organic farmers keep the soil rich and healthy in several ways. For exampleMatch the advantages with the reasons.2. The soil is not exhausted.3. They make full use of the soil.C. The soil is richer in minerals.A. Peas and soybeans renew the minerals in the soil.B. They plant different crops, and keep the soil.1. They use waste from animals.Knowledge points: refer to be rich in reduce food/water supply insist on doing/that every two or three years every second or third year carry away/out/onbe poor inincreaseMake up sentences using the phrases. I think we are all rich in energy and time, but we should reduce any waste of time. I insist on making a plan for my studies and life, and always write a summery every two or three weeks. If I have some difficulty, I often refer to the plan. In this way, I can carry out my plan at last. Watch the videos and describe them.Tips to help you:In the video, we can seeI think it is good toBut how /whywesurface/deeper levelIn the video, we can see what is left after harvestingnatural fertilizersBut do you know howdryburnIn the video, we can seeI think it is good to First thenBut do you know why The owner plant different vegetables.The soil is notFruits expressions:Match the words with the pictures.carrotpimientocucumberpeastrawberrypumpkinauberginetomatoHomework: Write a summary of the text after class. Preview the Reading Task on page 51.Answers.carrotpimientocucumberpeastrawberrytomatopumpkinaubergineListening and answering: What is “organic farming”? It simply means growing plants without chemical fertilizers. What do the organic farmers prefer to use to make the soil rich? Why? They prefer to use natural waste from animals, because this makes the soil richer and more fertile.Listening and answering: Are the results from the two farms the same? Why or why not?