Module 4 Sandstorms in　Asia

课件27张PPT。Module 4
Sandstorms in Asiatornado
hurricaneNatural Disastersearthquake sandstormlightningvolcanic eruptionWhat natural disaster is it ? It is a ________ . It is very__________.sandstormfrighteningPre-ReadingWords Previewmajor
campaign
desert
survive
appearadj.主要的；重要的；
n.运动/战役
n.沙漠
vi. 幸存；活下来
vi.出现；似乎；显得Words Previewn. （土壤）荒漠化；沙漠化（等于desertization）
vt. 影响；假装；感动；感染
n. 骑脚踏车兜风
v 呼吸desertification
affect
cycling
breathecitizen cycle (v) dust expert
forecast process situation survive 1. to ride a bicycle cycle2. someone who knows a lot about a particular subject3. things that happen one after another , and have a result expertprocess4. someone who lives in a particular town or country5. very small bits of dirt or earth , on the ground or in the air6. to continue to live after a difficult or dangerous situation or event 7. to say what will probably happen 8. everything that is happening at a particular timecitizendustsurviveforecastsituationPara.1
Para.2
Para.3
Para.4
Para.5
Para.6Sandstorms in Asia.
Sandstorms sometimes affect Beijing.
The government plants trees to prevent sandstorms.
Sandstorms have been a major disaster for centuries.
Sandstorms do a lot of damage to people.
Sandstorms in China appear to have increased as a result of desertification.Read the passage fast and match the main idea with each paragraph.I. Read the passage and choose the best answers.1.?Sandstorms are strong winds carrying ___________ through the air.
A. dirt and mud B. rain and heat
C. sand and dust D. cloud and snow
2. The factors that cause land to be desert are ______.
A. cutting down trees. B. digging up grass
C. climate changes D. all of the above
3. From the last paragraph we know _______.
A. the government won’t plant trees any more in five years
B.?the distance between the desert and the center of Beijing
is only 250 kilometers
C. more than 30 million trees have been planted in Beijing
D. the government is taking measures to prevent
sandstorms
I. Read the passage and choose the best answers.1.?Sandstorms are strong winds carrying ___________ through the air.
A. dirt and mud
B. rain and heat
C. sand and dust
D. cloud and snow 2. The factors that cause land to be desert are ______.
A. cutting down trees.
B. digging up grass
C. climate changes
D. all of the above3. From the last paragraph we know _______.
A. the government won’t plant trees any more in five years
B.?the distance between the desert and the center of Beijing is only 250 kilometers
C. more than 30 million trees have been
planted in Beijing
D. the government is taking measures to
prevent sandstormsWhat four main places are there sandstorms in the world?North AmericaCentral AfricaAustralia Central AsiaWhat are major sandstorm centers in China?major sandstorm centers in ChinaGansu and Western Inner MongoliaBeijing and Northeast Inner MongoliaPart Ⅲ Find out the following expressions and sentences in the text.
（1）一个主要灾难________________
（2）解决这个问题_________________
（3）a mass campaign________________
（4）遭遇，被…困住__________________
（5）in the most dangerous situation
_____________________
（6）因此，由于__________________
（7）wake up to__________________
（8）weather experts____________________
（9）wear a mask__________________
（10）the process of desertification
___________________________
（11）建议某人做某事_______________________a major disastersolve the problem大规模的运动/战役be caught in处于最危险的境况
as a result of意识到戴面具沙漠化过程advise sb. to do sth.
气象专家What’s the cause of sandstorms?DiscussionWhat measures should we take to prevent sandstorms coming?In order to protect our earth, many Green Movements have been held all over the world, what should we do? Summary:1. We should plant more trees and grow
more grass.
2. Control air and water pollution.
3. Build green fences along the desert.
4. Forecast sandstorm’s real time to
prevent disaster.
5. Establish sandstorm data bank and collect
information about sandstorms.
6. All countries should join hands to propose a plan
in sandstorms control and prevention.
SEE YOU!