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七年级英语阅读理解试题及答案解析
阅读理解 (20 分 )
A.
The world
is
not
hungry
,
but
it
is
thirsty
. It
seems strange
that
nearly
3/4 of
the
earth
is
covered
with water
while
we say we are
short
of ( 短缺 ) water.
WhyBecause about
97%of
water
on the earth is sea water
which
we cant
drink
or
use for
watering
plants
directly
( 直接地 )
. Man
can only drink and use the 3% - the water that comes from rivers and
lakes. And we cant even use all of that, because some of it has been
polluted ( 污染 ) .
Now more water is needed. The problem is: Can we avoid (
避免 ) a
serious water shortage later on First, we should all learn how to save
water. Secondly, we should find out the ways to reuse it . Scientists
have always been making studies
in
the
field. Today,
in
most large cities
water is used only once and then runs to the sea or rivers . But it can
be used again. Even if (
即使 ) every large city reused its water, still
there would not be enough. What could people turn to next
The sea seems to have the best answer. There is a lot of water in
the sea. All that needs to be done is to get the salt out of the sea
water. This is expensive, but its already used in many parts of the
world. Scientists are trying to find a cheaper way of doing it. So you
see, if we can find a way out, well be in no danger of drying up.
1 . The world is thirsty because ________.
A. 3/4 of the earth is covered with water
B. we have enough sea water to use directly
C. we havent used all the water in rivers and lakes
D. about 97%of water on the earth cant be drunk or used for watering
plants directly
Which of the following is true
3% of water on the earth is in rivers and lakes.
75% of water on the earth is the sea.
97% of the earth is covered with water.
3% of water on the earth is sea water.
3. From the passage we learn _________.
A. if every city reuses its water, well be in no danger of drying
up
B. man can only drink and use about 25% of water on the earth
C. today in most large cities water is used only once
D. water
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