外研必修3Module4 Sandstorms in Asia Reading and language points课件 (共24张PPT)

(共24张PPT)
Module 4

Reading
Look at these pictures. What do you think of the following pictures?
Look at the following pictures. What is your feeling?
The sand almost buries the house .
1. What's happening?
2. What is the cyclist wearing and why?
3. What do you think happens to traffic in this situation? Why?
4. What do you think experts advise people to do in this situation？
Read the text and find answers
1. Sandstorms have been a major disaster for many Asian countries for centuries. Scientists have tried many ways to solve this problem and in China, a mass campaign has been started to help solve it.
Sandstorms in Asia
Para1. sandstorms, Asia’s major disaster
major
1. adj. 主要的；重要的；大的
n. 主修课程；专业课
V. 主修
major in 主修…….
2. majority n. 大多数
a major of
大多数。。。
3. minority n. 少数
minor adj. 次要的；不严重的
n. 辅修课程
a mass of = masses of 大量;许多
the masses 群众;平民百姓
mass
1. adj. 大量的;大规模的，广泛的
2. n. 大量;许多
①Modern education is a mass enterprise.
现代教育是一项大规模的事业。
②After harvest we will have a mass of rice.
丰收后，我们将获得大量大米。
③There were masses of dark clouds in the sky.
2. Sandstorms are strong, dry winds that carry sand. They are often so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes. The four main places in the world where there are sandstorms are Central Asia, North America, Central Africa and Australia. Ren Jianbo, from Inner Mongolia described a terrible sandstorm he experienced as a child in the desert. “To have been caught in a sandstorm was a terrible experience," he said. "There was nothing to be done. It was the most frightening and the most dangerous situation I've ever been in. You just had to hope you'd survive. I thought I was going to disappear under the sand."
Para. 2 the description of strong sandstorms
They are often so thick that you cannot see the sun,
So…that… “如此…以至于…”
that 引导结果状语从句。
To have been caught in a sandstorm was a terrible experience.
be caught in 突然遭遇（风暴等）
be caught in = be trapped in = be stuck in
遭遇….. ，被困在…..
catch sb. doing sth.
撞见\发现某人正在做某事
be caught doing sth
被撞见在做某事
He was caught in the rain and got wet through last night.
动词不定式作主语
1. 动词不定式作语多表示具体的、一次性的动作或状态。
2. 动词不定式作主语，谓语动词用单数形式。
To have been caught in a sandstorm was a terrible experience
survive
vi. 存活，幸存
survive from sth. 从……中存活下来
survive on 靠……存活
Vt. 比….活的时间长，幸存
survive sb by ……years
比某人多活……年
survivor n. 幸存者
survival n. 幸存，生存
You just had to hope you’d survive.
3. Northwest China is part of the sandstorm centre in Central Asia. Sandstorms begin in desert areas. Sandstorms in China appear to have increased in recent years as a result of”desertification” . This is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass.
Para.3 northwest China, a sandstorm centre
Sandstorms in China appear to ….
appear v. 似乎，显得
vt. 出现，呈现
appear to do\ to have done\to be doing sth.
似乎要做\做了\正在做某事
appearance n. 出现，外表
in appearance 从外观上看
disappear 消失
disappearance n. 消失
cut down 砍倒，缩减，降价

cut in 插嘴，打断

cut off 切断，中断，隔绝

cut out 裁剪，删掉

cut up 切碎
dig up 掘出；发掘
dig out 挖出
dig into 详细调查
4. Sandstorms sometimes affect Beijing. Citizens wake up to an orange sky and strong winds at cover the city in a thick, brown-yellow 1st. The storms sometimes continue all day and traffic moves very slowly because the thick dust makes it difficult to see.
Para. 4 the effects of sandstorms on Beijing.
5. The Chinese Central Weather Station can precast a sandstorm some weeks before it arrives in Beijing, but the strength of the storm sometimes surprises people. When sandstorm arrives in the city, weather experts advise people not to go out. Huang Xiaomei, who lives in Beijing says,“To be cycling in a sandstorm is frightening. The winds are very strong. It’s difficult to breathe and the dust makes me ill. So if you want to go out, you'd better wear a mask.
Para.5 what to do in a sandstorm
weather experts advise people not to go out
advise
v. 建议，劝告
advise doing sth.
建议做某事
advise sb. (not) to do sth
建议某人不做某事
advice n. 建议
a piece of advice 一条建议
ask sb. for advice 征求某人的意见
accept \follow sb’s advice 接受某人的意见
6. The desert is only 250 klometres away to the west of Bejing To prevent it coming nearer, the government is planting trees. Already the goverment has planted more than 30 billion trees and plans to continue planting for the next five years.
Para.6 the measures to prevent sandstorms coming to Beijing.
To prevent it coming nearer,
prevent …(from) doing sth.
阻止…做某事
Nothing can prevent us from learning maths.
Complete these sentences using words from Sandstorms in Asia. The first letter is provided for you.

1. Weather experts have f _____ another big storm in a week’s time
2.It's f______to be outside in a sandstorm.
3.I was in a very big sandstorm some years ago. Luckily, everyone s________
4.There is a lot of d______ on the floor. We need to sweep it away.
5. Desertification is a long p_______ that takes many years.
6. Many Beijing c_______ cycle to work.
Exercises
①Sand dunes mean _____
(a) plants growing in sand (b) sand hills
②desertification means _____
(a) making land become desert (b) throwing sth away
③If you want to wear a mask , you should wear it over your ____
(a) face (b) body

Exercises