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必修4 unit2.using language导学案


高效课堂导学案 【学习目标】

学科 :英语

年级:高一

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2. What is the goal of using organic farming methods? T

he goal is

1.通过对文章的认真阅读,理解 chemical farming 和 organic farming 的区别。 2.通过自主学习、合作探究,掌握课文中重点短语、理解长难句型。

Task 2 Scanning
【预习案】Revision of words and expressions

Match each paragraph and its main idea.
1.化学的 2.生产;制造 3.细菌 4.害虫;害兽;害鸟 5.营养;滋养;食物 6.矿物;矿石 7.发现;发 觉 8.土壤 9.减少;减缩 10.根;根源 11.浏览;略读 12.画底线标出;强 调 13 总结,摘要 14 评论,议论 1. 逐 渐 增 强 ; 建 立 ; 开 发 3. 集中(注意力、精力)于 物) 【探究案】 2. 导 致 ; 造 成 ( 后 果 ); 通 往 4.使.…免受(影响); 使…不含(有害

P.1 P.2 P.3 P.4

Other methods to keep the soil fertile Farmers and customers turn to organic farming. Problems caused by chemical fertilizers Long-term use of chemical fertilizers can cause damage to the land and people?s health.

Main idea of the passage It talks about can cause many problems, so

Step 1: Warming up Which kind of tomatoes is more expensive? What’s the differenc between them? Step II Reading Task 1 Skimming 1. What is organic farming? Organic farming is

_______________is becoming more popular. Task 3 Careful reading Read Paragraph1 and 2, then choose the best answers. 1. Chemical fertilizers has become very common in farming.Which following reason is WRONG? ( )

A. Chemical fertilizers can stop crop disease. B. Chemical fertilizers can increase production.
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高效课堂导学案

学科 :英语

年级:高一

主备:

班级:

小组:

姓名:

编号:

C. Chemical fertilizers can stay in the ground. D. The crops with chemical fertilizers can grow fast. 2. The problems can be caused by chemical fertilizers EXCEPT which one? ( )

Listen to the tape and judge True or False. 1.Chemical fertilizers only kill harmful bacteria and pests. ( 2.Chemicals get inside the crops and cann’t be washed off. ( ) ).

3.Fruit ,vegetables and other food grown with chemical fertilizers usually grow too fast ,but they are full of much nutrition. ( ). ).

A. They damage the land . B. They kill the harmful pests. C. There is more water than vitamins and minerals. D. Many of these chemicals can lead to cancer or other illness. Read Paragraph3 and4 ,then finish the chart below.
methods use natural waste from animals. advantages Make the soil richer in minerals and so more fertile.

4.Organic farmers have many methods to keep the soil fertile. (

5.Organic farmers seldom change the kind of crop in each field for years. ( )

StepIV. Consolidation Write a summary

StepV. Homework
现如今人们越来越关注饮食问题。假如你是一位农民,你打算怎样进行农业耕作。把 你的想法写成 一篇小文章。 (开头已给出。 ) If I were a farmer, I would ......

StepIII.Post reading
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