閱讀理解。
Taking away a city's rubbish is a big job. Every day trucks come into a city to collect it. Most rubbish is
made up of things we can't eat or use. If we kept these things we would soon have a mountain of rubbish.
In some cities the rubbish is collected and taken outside of city to a dump. Often the city dump is placed
where the ground is low or there is a big hole. The kitchen rubbish is broken into small pieces and sent into
the sewage system. The sewage system takes away the used water from toilets, bathtubs and other places.
To keep mice and flies away, some earth is used to cover the newly dumped rubbish. Later, grass may be
planted on the rubbish-filled land. Finally, a house or a school may be built there, and then you'd never know
that this had once been an old rubbish dump.
In other cities the rubbish is burnt in special places. The fire burns everything but the metal. Sometimes
the metal can be used again in factories where things are made of metal. The food parts of rubbish are put in
special piles where they slowly change into something called hurnus, which looks like black earth. It is rich
with the kinds of things that feed plants and help them grow.
1. You can most probably read the passage in_________.
A. a science book
B. a TV guide
C. a history book
D. a telephone book
2. The main idea of the passage is _________.
A. to let us know taking away rubbish is a big job
B. to explain the need for rubbish collection
C. to introduce different ways to treat rubbish
D. to tell people to take useful things out of rubbish
3. The underlined word "sewage" in the passage means _________.
A. 排污
B. 染色
C. 洗滌
D. 吸塵
4. According to the passage, the food parts of rubbish can be used again _________.
A. to feed animals
B. to feed plants
C. to build a house
D. to make machines
5. How should we take care of a used metal box according to the passage?
A. By burning it off.
B. By putting it in water.
C. By throwing it away.
D. By reusing and recycling it.
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