外研版英语必修三第4模块学案

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__________________________________________________ re 必修3 MODULE 4 Sandstorms in Asia导学案 编写人: 【Learning Goal】Learn about some thing about sandstorms in Asia

【使用说明与学法指导】

自学要求:课前提前自主学习，阅读单词并完成习题。

正课要求:3分钟教师展示自主学习练习题答案。

17分钟独立完成探究一，二。10分钟小组讨论确定答案。

10分钟展示点评。5分钟进行背诵所学词汇和短语并当堂检测。 Period 1 Introduction &Reading 【课前预习】

TaskⅠ:Master the words and phrases below.

buryfrightening

sandstorm cut down

dig upthe inland region

the first sign if yes

TaskⅡ: Do activity①② on page 31

TaskⅢ:finish activity ③④on page 33.

【课内探究】

TaskⅠ:skimming

Read the text quickly and answer the following questions.

1 Why is it hard for people to see in sandstorms ?

Because of the thick dust.

2 How far is the desert from beijing ?

Only 250 kilometers away.

Task Ⅱ:careful reading.

Choose the best answers according to the text.

1.According the text ,we can learn that sandstorms B.

A. cause people to buy more masks B. are difficult to deal with

C. are not dangerous but frightening D.will disappear within five years

2.which of the following is true according to the text ? A

A. Ren Jianbo thought he would probably die from the sandstorm.

B. A sandstorm can be forecast several months before it arrives.

C. Huang xiaomei frequently cycles in sandstorms.

D.Sandstorms occur in beijing mainly because of its dry climate.

Read the text carefully and fill in the blanks. H

Sandstorms

What are they ? They are 1.strong dry winds that carry sand.

How powerful are

they ? They are strong enough to move 2. sand dunes

Where do they

often occur? In central asia, 3.North America , central

africa and australia.

Sandstorms inChina

The cause Sandstorms begin in 4 desert areas and

appear to have increased in recent years as a result of

“desertification”.It is a process that happens when land

becomes desert because of 5. climate

changes

And because people cut down trees and dig up grass.

Sandstorms in

Beijing Citizens wake up to a(n) 6. orange sky and strong

winds that cover the city in a thick, brown-yellow dust. The

storms sometimes last all day and affect traffic.

Two persons’

description ▲ Ren Jianbo descibed a sandstorm inInnerMogolia.

▲ Huang xiaomei told people about a sandstorm in 7.

Beijing

The measures ▲ A 8. mass campain has been

started in china .

▲The government has already planted over 9. 30

million

trees and plans to continue planting for the next 10. five

Years.

Task Ⅲ T or F

1.Scientists have tried many ways to deal with sandstorms. ( T )

nd becomes desert only because people cut down trees and dig up grass. ( F )

3.The Chinese Central Weather Station can not forecast a sandstorm before it

comes.( F )

4.The desert is 250 kilometers away to the west of Beijing. So there is no need to take

some measures.(F )

5.Southwest China is part of the sandstorm center in Central Asia. ( F ) __________________________________________________

__________________________________________________ Period 2 Language Points：

【学习目标】掌握Language Points中列出的知识点

【使用说明与学法指导】

自学要求：课前自主学习，预习知识点。

正课要求：课上前15分钟完成课内探究。

10分钟讨论，10分钟展示点评，解决疑难。

10分钟疯狂背诵并当堂检查。

【课前预习】

阅读课文并且从文中找出下列短语:

1.在这种情况下2.解决这个问题

3如此….以至于 4.被困在…

5.由于 6砍倒

7挖掘 8醒来

9.建议某人做某事10最好做某事

11.阻止做某事

【课内探究】

1.What do you think experts advise people to do in this situation ?

①在这种情况下，你认为专家建议人们做什么？

此句型属于“特殊疑问词＋do you think＋ 陈述句 ？”这种句式常用于询问对方或者第三者的想法或意见。这种句式的动词除了think 之外，还有believe,consider,expect,imagine,suppose,suggest等。

① advise sb. to do sth. 建议某人做某事

拓展▲advise doing sth 建议做某事

be advised to do sth 被建议做某事

与advise 一样用法的动词还有，allow, permit, forbid;

advise 的名词是advice, 是个不可数名词，常考的一个短语是，give sb.

some advice on sth.

② in this situation 在这种情况下

2.Scientists have tried many ways to solve this problem and in China ,a mass

campain has been started to help solve it. 科学家尝试过很多方法来解决这个问题，在中国，也发动了群众运动来对付沙尘暴。

本句是有and 连接的两个并列句。

①massⅰadj. 大规模的，以大众为对象的；eg.Their latest product is aimedat

themass market.他们的最新产品瞄准了大众市场。 ⅱn. 许多，常用的两个短语 a mass of ＋复数名词/不可数名词

masses of ＋ 复数名词/不可数名词

① campaign运动，宣传活动；

3.They are often so thick that you cannot see the sun ,and the wind is

sometimes strong enough to move sand dunes. 沙尘暴夹带的沙尘含量常常很大，以至于可以遮天蔽日，风力强大时可以搬动沙丘。

本句是由and 连接的两个并列句，第一个分句中含有so...that 引导的结果状语从句，第二个分句中含有adj.+enough to do的句型。

① sometimes adv. 有时，可用于句首，句中，或句末。注意区别：

some times 几次 some time 一些时间 sometime指不明确的时

间，可用于过去式、将来时。