Module 4 Sandstorms in Asia

Period 1 Introduction

设计思路说明

【Pre-learning】

通过图片讨论沙尘暴的危害。

【While-learning】

学习关于沙尘暴词汇以及讨论沙尘暴的起因。

【Post-learning】

讨论应对沙尘暴的方法。

教材分析

本模块以Sandstorms为话题，通过本模块的几篇阅读材料使学生对Sandstorms有所了解，并通过文章中提出的一些深刻的问题，比如，The desert is only 250 kilometers away to the west of Beijing使学生更好地了解我们的地球和我们的生活环境正遭受的破坏，并引发对“我们应该如何保护环境”的热烈讨论，通过这些讨论会激发学生对环境保护的了解和实施的自觉性。通过讨论Sandstorms，让学生表达对沙尘暴的看法，以及我们应采取何种措施来提高环境质量。并能就此设计海报来呼吁人们保护环境。INTRODUCTION 复习和学习有关自然灾害的词汇,呈现了一些自然灾害的起因以及造成的危害,使学生对沙尘暴有初步了解。

教学目标

【知识与能力目标】

Enable the students to talk about the sandstorms, the reasons for causing sandstorms and the important of protecting environment.

【过程与方法目标】

Help students to learn how to talk about the sandstorms, the reasons for causing sandstorms and the important of protecting environment.

【情感态度价值观目标】

To realize the importance of protecting environment.

教学重难点

【教学重点】

How to describe sandstorms environmental protection.

【教学难点】

How to express one’s opinions.

课前准备

1. A projector

2. A computer

教学过程

Step I. Pre-learning

T: Good morning, everyone! Today we are going to learn a new module, Module 4 Sandstorms in Asia. Look at the screen please. I will show you some pictures. Talk about them in your own words. (Show them the pictures of sandstorms.)

S1: In the first picture I can see a man is riding a bike hard. The sky is yellow.

T: Can you see the buildings clearly?

S1: No, they are not clear.

T: Thank you, sit down please.

S2: In the second one I can find some buildings, but I cannot see them clearly. May be the city is in the sand or anything like that.

S3: In the third one I can see a very tall building only. There is much sand in the sky.

T: Very good. Thank you.

S4: In the next picture, I can see many people riding bikes wearing masks. The weather is very cold, because they wear gloves and more clothes.

T: How about the air? Is it clean?

S4: The air is not clean. There is something like sand in the air.

T: Quite right!

S5: In the fifth picture, there is a strong wind carrying sand. It looks like smoke.

S6: In the last one, there are some buildings covered with thick, yellow dust.

T: Excellent job! Thank you every much. Now, who can tell us why there is so much sand in the sky? The wind that carry sand are called…

S7: Sandstorm.

T: Very good. Yes, they are called sandstorm. If you want to know more about sandstorm, let’s come to Module 4 Sandstorms in Asia.

Step II. While-learning

T: Open your books on page 31. Look at the picture in your books, what can you see in the picture?

S1: There is a strong wind carrying sand in the sky, and a car covered with sand running slowly.

T: Right. Now, complete the sentences using the correct form of words in the box. Three minutes.

T: From this short paragraph, we can see the sandstorm is frightening. Have you ever experienced the sandstorm? How does it be created? Before we discuss these questions, let’s look at some words on the screen.

into several groups to discuss questions in activity 2. Then call back the answers)

S1: Most of the sandstorms begin in desert areas. Because there are no trees and grasses in the desert areas. The wind is very strong.

S2: Climate changing can create deserts, but nowadays, the deserts are being enlarged because of humanity.

S3: Deserts are also created because people cut down trees and dig up grass.

T: Why people cut down trees?

S3: They want to get wood or to plant crops.

S4: Few years ago, Japan was affected by the sandstorms coming from northwest China. And America is also affected by sandstorms. Some are caused by humanity; some are from Asia blown across the Pacific Ocean. Sandstorm has been a global issue.

T: Very good, thank you. Can we prevent it?

S5: Yes. At present, our China has carried out many plans to prevent sandstorm. For example, China has formed a professor committee to study how to prevent sandstorms. We have planted many trees every year. Cutting down the trees is unlawful. The degree of sandstorm is on decline. So we can prevent it. We believe ourselves.

T: Quite right. I believe too. Where does the sandstorm often happen?

S6: the inland region has more sandstorms than the one near the sea. Because the inland is drier than the one near the sea.

T: Can you give us the reason?

S6: Dry weather is one of the main reasons for sandstorms.

Step III. Post-learning

T: Quite right. You’ve done very well. From this activity, you’ve got much information on sandstorms. Sandstorm is very bad. It pollutes the air, affects our daily life. If you are in a sandstorm what should you do? Now work in pairs to discuss the questions in activity 3.

(5 minutes later, call back the answers)

S1: If I am in a sandstorm I will wear a mask to protect my mouth and throat, wear a pair of glasses to protect my eyes.

S2: Besides mask and glasses I will wear a hat. Because there is much sand in the air, it will make my hair dirty.

T: You are right. In a sandstorm, you should wear a mask and a hat, a pair of glasses is also necessary. Which one is more dangerous, earthquake and sandstorm?

S3: I think earthquake. Because in sandstorm we can stay at home to protect us, but in earthquake everywhere is dangerous.

T: I agree with you. Where in China do sandstorms usually happen? What is the first sign?

S4: In the west and northwest China.

S5: But it also happens in Beijing often.

S6: Before the sandstorm, there is usually a heavy wind and dry weather.

S7: The sky is yellow.

S8: One afternoon of last spring, when I was at school, the sky was yellow. There was much sand in the sky. The wind was very strong with some drops of rain. In fact, it was not rain. It was mud. At that time, I thought the earthquake was coming. It was very terrible.

T: It was really terrible. Thank you. Now I think all of you have known about something of sandstorm. The sandstorm is terrible and harmful. We should work hard to protect our environment.

Homework:

1. Recite the new words.

2. Preview the passage in Reading and V ocabulary.

教学反思

Period 2 Reading and Vocabulary

设计思路说明

【Pre-reading】

Show some pictures of sandstorms to the students and let them to describe the pictures so as to arouse the students’ interest and learn some words)

【While-reading】

Get the students to have an idea of the organization of the whole text and let the students know more detailed information about sandstorms to train the students’ability of seeking the needed information.

【Post-reading】

Have the students watch a video of a sandstorm that happened in Inner Mongolia and ask them to work in pairs to prepare an interview about the sandstorm.