高一英语Unit19 Reading 人教版 课件VIP免费

Unit19 Reading 1Unit19 Reading 1Modern agricultureModern agriculture It shows thousands of chickens sit in small cages inside a large building. It shows a farmer is feeding the chickens. Chickens can walk freely in the yard.Describe the photos. It shows two bags of chemical fertilizer. It shows a pile of animal shit. It shows a farmer working on the land with a buffalo( 水牛 ). The buffalo pulls the plough to work the land. It shows a tractor. In this picture, the farmers use the tractor to work the land. It shows dry, poor land. The earth is so dry that nothing can grow there.It shows a greenhouse, where plants grow in a building made of glass. In the past, farmers grow crops in the traditional way. Using cattle to plough the field, farmers work most of the day all year around, but they could not produce enough food for the whole population. At present, they use modern techniques such as chemical fertilizers, greenhouses and so on in their fields to improve agricultural production. Great changes have taken place in agriculture. Summary Summary What will you think of when you see the word “agriculture”? agriculturefarmirrigationfoodcropfieldplantsfarminggrainfarmerfertilizer seedcountrysidelandarableland Match the words with the meanings:Match the words with the meanings: traditional arable irrigation improve GM watering not modern make better or more genetically modifiedsuitable for ploughing Fast readingParagraph 1 Since early 1990’s scientists started to develop new environmental techniques.Paragraph 2 Traditional agriculture in China only changed a little.Paragraph 3 Many other plants are genetically modified.Paragraph 4 Many farming techniques have been modernized.Paragraph 5 Greenhouses ar...