Learning about Language公开课教案

Book 4 unit 2 working the land Using Language Teaching Aims To help students read the passage Chemical or Organic Farming. To help students to use the language by reading, listening, speaking and writing. Teaching Procedures Warming up Ask the students to read the title of the reading material in using language and guess the content of the text. Question：What do you know about chemical and organic food and farming? Reading Task 1: Read the passage on Page 14 quickly to find out the main idea of each part. Part 1 (Para. 1-2):Problems caused by chemical fertilizers

Part 2 (Para. 3-4): Organic farming and its advantages Task 2: Read the passage again and answer the following questions. 1. Why are chemical fertilizers so popular in farming today? 2.What problems can be caused by using chemical fertilizers? 3.What is organic farming? 4.What is the main reason for using organic farming methods? Task 3: Find and write down the methods and advantages in the passage.

Methods of organic farming1. Farmers use natural waste from animals.2. Farmers often change the kind of crop in each field every few years.Advantages of methods1.This makes the soil richer in minerals and so more fertile.2. Changing the crops renews the minerals in the soil and helps it become rich and healthy.

Methods of organic farmingAdvantages of methods3. Farmers plant 3. This uses different crops with different levels of soil.lengths of roots.4. Farmers sometimes 4. This prevents wind or plant grass between water from carrying crops and leave it in away soil and acts as the ground.a natural fertilizer.

Listening For listening turn to page 15 for the listening exercises 1, 2 and 3.

What are the disadvantages of using chemical fertilizers?1.Leaving chemicals in the ground for a long time is not good for the soil or the water supply.2. Farmers often grow the same crop the year after. As a result, the soil gets exhausted.3. Chemical fertilizers kill both helpful and harmful bacteria and pests.