上学期19reading(guo)上学期19reading(guo).ppt

Unit 19 Modern agriculture Task 1 Brainstorming 1.What will you think of when you see the word “agriculture”? agriculture Task 2 Pre-reading agriculture Traditional farming Modern farming raising a few chickens traditional farming a chicken farm modern farming ordinary fertilizer traditional farming modern farming chemical fertilizer traditional farming modern farming ploughing the field with cattle ploughing the field with a tractor traditional farming modern farming a cracking land/ drought green house Agriculture Advantages Disadvantages 1.traditional farming 2.modern farming 1. Causes little pollution. 2. Food is tasty. 3. The cost is small. … 1. Produces less food. 2. Depends on weather completely. 3. Needs many people. 4. The kinds of food are limited. … 1.Produces more food, plants. 2.Weather doesn’t matter much. 3.Uses fewer people 4.The kinds of food are very rich. … 1. Causes more pollution. 2.Food is less tasty. 3.The cost is big. … 1: What was traditional agriculture in China like? 3: What is the biggest problem of Chinese farmers? How do Chinese scientists solve it? Task 3 Fast reading 2: What effects do modern techniques have on agriculture in China now? 4: What should future agriculture depend on? 5: What is most important for agriculture? 6: What techniques are referred to in the text? 1: What was traditional agriculture in China like? Task 3 Fast reading 2: What effects do modern techniques have on agriculture in China now? Traditional agriculture in China didn’t change much for thousands of years. Modern techniques help ①farmers make as much use of the land as possible, ② save time and allow farmers to grow an extra crop in each season, ③ Chinese farmers improve their production, ④ grow better and healthier fruits / plants. 3: What is the biggest problem of Chinese farmers? How do Chinese scientists solve it? 4: What should future agriculture depend on? It is the shortage of arable land. The scientists use the latest techniques, such as g