25、 The world is not only hungry, it
is also thirsty for water. This may seem strange to you, since nearly 75% of
the earth is covered with water. But about 97% of this water is sea water. Man
can only drink and use the other 3% fresh water that comes from rivers, lakes,
underground and other places. And we cannot even use all of that, because some
of this fresh water has been made dirty.
At the moment, this small amount (數(shù)量) of fresh water is still enough
for us. However, our need for water is getting greater and greater. Only if we
take steps to solve this problem now, we can get away from a serious world
water shortage later on. The people of the world cannot have an
enjoyable life without enough clean water.
On one hand we
should stop wasting this little water of ours, on the other hand we should find
ways to reuse it, but this has not been done widely.
Today, in most
large cities, water is used only once and it then returns to the sea or runs
into underground places. If we can make it clean again, it can be used once
more just as if it were fresh from a spring.
But even if large
cities reuse its water, we still would not have enough in the future. Where
could we turn to next for water? To the ocean! How can we do to make use of
this great amount of sea water? We can take the salt from the water to make it
fresh.
So if we take
all these steps, we’ll
be in no danger of drying up!
1. Why does the writer say that
the world is thirsty for water?
A. The amount of
fresh water is really very small.
B. The people of the
world waste too much water.
C. The people of the
world have to drink a lot of water every day.
D. There are too many
people in the world needing water.
2. From the passage we know that
fresh water doesn’t come
from _________.
A.
rivers B.
lakes
C. underground D. the sea
3. The underlined word shortage in
the second paragraph means _______in Chinese.
A. 問題
B. 短齡
C. 缺乏
D. 資源
4. The writer thinks that people
in large cities should __________.
A. stop the used
water from getting into underground
B. only use the water
from the rivers
C. make their used
water clean again
D. use as much sea
water as possible
5. In order to solve the problem
of water shortage, we have to __________.
a. make use of sea
water on the earth.
b. save as much fresh
water as possible
c. reuse the water
from large cities
d. stop people from
using too much water
e. only use the 3% of
the water on the earth
A. a and
e B. a, b and
c C. b, c and
d D. a, b and d