Step 1: 阅读标题, 预测文章主题,同时找出文中主要瘟疫

Step 2: 讨论数字在文中不同的含义, 进一步了解和熟悉课文

Step 3: 进一步阅读文章, 了解造成瘟疫的元凶---病毒;描述瘟疫的传播途径, 找出各次瘟疫造成的巨大影响; 描述和猜测不同的瘟疫

Step 4: 完成段落补全练习, 介绍相关方法

1. 点出阅读技巧

5. 读一段有关爱滋病对儿童危害的文字, 提示我们应该做点什么

课堂的延伸和升华

Step 3 : Reading Strategies: how to read a science article

1. Read the title carefully

(1) To present question 1

What's the main idea of the text?

A. New health threats is on the rise.

B. A lot of epidemics happened in history.

C. SARS used to be out of control, now people are trying to stop it on the track.

D. We should pay more attention to our health.

(2) We can predict what will happen in the text from the title

In this text, some epidemics in the history will be talked.

(3) Give more titles and ask the Ss what will be talked

A. Epidemics

B. Epidemics and economy

C. SARS

D. The history of the Black Death

2. Read the text fast and get the general idea and basic information

(1) To present question 2

Read the following graphic and try to tell which epidemics are described?