Lesson 90 多媒体教学设计方案

　　1. Why was it built?

　　Key:1).The River Nile used to flood.

　　2) .Electricity.

　　2. Problems:

　　Key: 1).the water level of the lake

　　　　 2) .move people

　　　　 3).old temples, in danger for example, Abu Simple

Step VIII Discussion

教师活动：教师组织学生分成几个小组，对下面的话题进行讨论，给学生十分钟的时间，然后教师分别提问每个小组的讨论结果，教师可给予自己的理解和参考答案。

学生活动：学生在一个小组内，可查阅读相关的资料，或根据书上提供的部分资料，得出结论。

Situation A:

　　What are the dis)advantages of the Aswan Dam? （参考答案见ppt.）

Situation B：

　　Talk about the building of reasons and advantages in the Three Gorges Dam.

Suggest answer:

　　1.Reasons:One is to control the eater of the Changjiang River and the other is to make electricity.

　　2.Advantages:It has controlled the water of the Changjiang River and it won’t flood any more. The people will lead a safe and happy life along the Changjiang River.

Step Ⅸ Practice

教师活动：教师可提供给学生难句或生词，学生写完之后，教师可讲评某个学生的范文。

学生活动：学生根据下面的要求，写出相应的文章

According to answers and questions and write a article.

　　1.Where is the Palace Museum ? (in the center of Beijing)

　　2.How big is it ? (an area of 72 hectares)

　　3.When was it first built? (in the early 15^th century)

　　4.How many people did it take to work on it? (1,000,000)

　　5.How long did the building of the project last? When was it finished? (14 years,1492)

　　6.What happened to some of the houses during the later years? (rebuild)

　　7.Who used to live in it ? (twenty-four emperors)

　　8.When did it become a museum and open to the public ? (1925)

Key:

　　The Palace Museum is in the center of Beijing. It covers an area of 72 hectares(公顷). It was first built in the early 15^th century. It took 1,000,000 people to work on it. The building of the project lasted 14 years and was finished in 1420. During the later years, some of the houses were rebuilt. Twenty-four emperors used to live in it. It was not until 1925 that the Palace Museum became a museum. Since then the place has been open to the public.

Step ⅩHomework

　　1.Finish the Workbook exercises.

　　2.Read the passage again.

　　3.Preparation the Lesson 91.

Introduction

教师活动：教师展示本课的相关图片，让学生来欣赏和观看，如有时间可进行解释说明。