Reading and Speaking

Sandstorms in Asia and in the World

drought [draut]

drought [draut]

drought

desert

desertification strong winds sandstorms

Think about the connections between these:

Qingdao on March 20,2010

yellow skystrong windsdusty and dirty air

I found ______

I felt _______strangefrightened

sandstorm

Forecast of sand-dust storms2010 年 03 月 19 日 20 时 ---03 月 20 日 20 时

Chinese Central Weather Station

青岛

• Inner Mongolia

citizens in Beijing

• Ren Jianbo felt the sandstorm was

• Huang Xiaomei advised us

terrible frightening dangerous

to wear a mask when going out.

sandstorms

definition:

where they start:

where they occur:

strong, dry winds that carry sand

in desert areas

Central Asia, North America, Central Africa and Australia

causes

damage --- see ---- traffic--- breathe---ill

destroy

ways to solve it mass campaignplanting trees and grass

warm weather --wind little rainfall

cutting down treesdigging up grass

climate changes

human activities

strong winds thick dust

floating dust

mask

bicycle / cycle

cyclist

Suppose a sandstorm is coming, what else can we do?

• Close doors and windows tightly and stay inside

• Leave dangerous old houses

• Don’t attend open-air gathering

• Keep away from high buildings and ad boards

• Cover your mouth, nose and eyes when out and wash your face after back home.

land

desertification

Sandstorm is the result of desertification.

sandstorm

desert

Desertification is becoming a global problem.

causes:measures to prevent it:

The Dust Bowlbowl

The Dust Bowl in the 1930s in the USA

Then It had been like this for 10 years

30 years after it ended, the land could be replanted.

Decide whether the statements are true (T) or false (F). If it is false, say why.

1). The Dust Bowl in America in the 1930s was mainly caused by bad farming methods and years of little rainfall. ( )

2). Soon after the Dust Bowl, the land could be replanted. ( )

3). China has fought against desertification successfully. ( )

4). When a large part of agricultural land in Africa is becoming desert, people there can’t produce enough food for their population. ( )

T

T

F

F

1) In the history of the USA, the worst agricultural disaster is called the Dust Bowl. 2) The Dust Bowl forced people to leave their farms. 3) The Chinese government is fighting desertification by improving farming methods and planting trees and grass.4) The desert area in the world is spreading quickly.5) In Africa, sandstorms are worse than anywhere else.

6) The desert in Africa is expanding because people are destroying the tropical forests there.

The correct parts of the sentences are joined.

How Human Activities Affect the Earth

too many sheep and cattle

all the grass be eaten

grass never grow again ; the land become desert

trees be cut down

nothing to hold…

top soil be washed away…

Discuss the connections between:

Human activities

Losing top soil

Desert

Desertification

Sandstorms

Things we can do to protect our environment:

• Plant more trees • Save water and paper• Use both sides of

paper• Kick bad habits• Eat more vegetables• Live a low-carbon life

• Save electricity• Recycle anything that be used again • Don’t waste food or clothes• Walk or use public transport• Join an organization (Earth Hour, Earth Day, Tree-Planting Day …)

Thanks a lot.