Unit 2 Working the land

Using Language

Teaching goals 教学目标

1. Target language 知识目标

a. 重点词汇

chemical, bacteria, pest, lead to, discovery, nutrition, keep...free from, root

b. 重点句型

With these discoveries, some farmer and many customers are beginning to turn to organic farming.

Over the past half century, using chemical fertilizers has become very common in farming.

2. Ability goals 能力目标

Enable Ss to master the main idea of the text and know the ways of organizing articles.

Teaching important and difficult points 教学重难点

1. How to grasp the main idea of the passage.

2. How to grasp the words and phrases and be able to use them freely.

Teaching methods 教学方法

Show questions, read fast, find the main ideas, and then read carefully and finish all the tasks.

Teaching aids 教学准备

A recorder and a projector.

Teaching procedures & ways 教学过程与方法

Step Ⅰ Greeting and revision

Step Ⅱ Reading

There are three tasks in this step. First, teacher can ask students to read the articles one paragraph by one paragraph. Ask them some questions about these passages. There are three paragraphs in the article. In each passage, there are one or two questions. When students finish these questions, they will find that the structure of the text has turned up.

T: In the last periods we talked about agriculture. As people's living condition improves, more and more people are concerned about what they eat. In fact more and more people become worried about the quality of the food they eat. Because more and more farmers use chemical fertilizer instead of natural waste from animals and they use poison to kill insects to protect their plants. So people now all want to eat green food which does no harm to their health.