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《英语听力教程
3
》答案与听力材料
呵呵
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考试一路顺风
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UNIT 1
A.
B.
Keys:Part I
Getting ready
1: burning of the forests/tree removal
(deforestation)/reduction
of the
world's rain forests
2:
global warming/greenhouse effect/emissions of CO2
Part II
The Earth at risk (I)
A. Keys:
1.
a. More people--------?more
firewood----?fewer trees
b. More
domestic animals------?more plants-----?fewer
available
plants
a,
b--?
More
desert----?move
south-----?desrtt
expanding
south----?no grass
2.
Growing
crops
stabilize
soil,
without
them
the
top
soil
just
blows away. But if there isn't enough
rain the crops don't grow.
3.
People
try
to
grow
food
to
support
themselves
or
to
create
ranches where cattle can be raised, or
to get hardwood for export,
or to make
way for an iron ore mine
B.
Keys:
1: Sahara Desert
2: North America & most of
Europe
3: top soil blowing
away
4: tropical forests
destruction
5: animal/plant
species becoming extinct
6:
climate change for the whole world
Part III
The Earth at risk (II)
A.
Keys:
1: Trees would hold
rainfall in their roots. When forests in the
higher up-river have been destroyed,
all the rain that falls in the
monsoon
season
flows
straight
into
the
river
and
starts
the
flooding.
2: He implies that some national
governments just consider the
results
of
their
policies
in
the
near
future,
or
just
think
as
far
ahead as the next election.
B. Keys:
1:
flooding in Bangladesh
2:
Action to be taken
3:
population control
Part IV
More about the topic: The Effects of Global
Warming
Keys:
1:
Warming up of the world
2:
Effects of global
3:
reduced potential for food production
4: change of patterns of hear-related
food poisoning, etc.
Part V
Do you know…?
A. Keys:
1: F 2: F 3: F 4: F 5: T
B. Keys:
Dos
1:
your
towels
2:
Cut
out
3:
a
wall-fire
4:
fridge
5:
wait
until you've a full load
6: a complete meal
Don’ts 7: iron everything 8: the iron
up 9: the kettle 10: to the
brim
11:
hot food
Unit 2
Part I
Getting ready
A.
B. Keys: