完形填空题（三套）
第一套
The Amazon rainforest crosses into eight countries, including Brazil and Peru, and 1 one overseas region of France…
A. includes
B. plus
C. has
D. contains
With an area of around 6 million square kilometres, the Amazon rainforest is more than half the 2 of China.
A. width
B. length
C. size
D. height
They give this area the richest 3 on the Earth: one in ten known species in the world can be found here.
A. environment
B. ecosystem
C. diversity
D. species
Each level of the forest forms its own little world, 4 to different kinds of living things.
A. home
B. house
C. habitat
D. place
Over the past 50 years, about 17 per cent of the rainforest has 5 due to human activities…
A. grown
B. disappeared
C. expanded
D. protected
第二套
The Amazon rainforest is 1 for many reasons. It fixes carbon and produces over 20 per cent of the Earth’s oxygen.
A. famous
B. dangerous
C. small
D. old
The next level is 2 of shorter plants with large leaves.
A. composed
B. made
C. formed
D. included
These frogs, 3 , feed on insects which eat leaves and fruit.
A. in return
B. in turn
C. in fact
D. in time
Moreover, the Amazon rainforest is a treasure house of species that can be 4 for food or medicine.
A. used
B. eaten
C. found
D. grown
we are left with a question: can we 5 to damage the “lungs of the planet”?
A. want
B. afford
C. hope
D. need
第三套
The Amazon River, from 1 the rainforest gets its name, is close to 6,400 kilometres in length…
A. which
B. that
C. where
D. what
At the bottom, there is a system of roots 2 the ground.
A. above
B. under
C. on
D. near
They feed on at least 87 species, 3 frogs.
A. including
B. except
C. without
D. like
When a jaguar dies, a tiny army of microorganisms helps 4 its body…
A. build
B. protect
C. break down
D. hide
As the impact of human activities continues to 5 , we must ask: can we afford to damage it?
A. reduce
B. grow
C. stop
D. change