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求牛人做个阅读理解?EachdayeverypersonintheUnitedStatesthrowsawaymorethanfivepoundsofgarbage.Thereismoregarbagenowthaneverbeforeandmostofitismadeupofthepackagesandcansinwhichwebuyourfood.Thetraditional

题目详情
求牛人做个阅读理解?
Each day every person in the United States throws away more than five pounds of garbage.There is more garbage now than ever before and most of it is made up of the packages and cans in which we buy our food.The traditional way of getting rid of solid wastes is quickly becoming inadequate.Many cities are experimenting with newer ways of handling their growing piles of garbage.
One of these new ways is “recycling”.Through recycling usable materials are taken out of garbage and made into something else.These usable parts of garbage are put through the cycle of going from a raw material to a finished produce again.
In some cities a machine called Hydrapulper is being used to help recycle garbage.A Hydrapulper is like a huge mixing machine.The garbage is dropped onto a conveyor belt that feeds the machine.At the same time,water is pumped into the Hydrapulper.With a mixing action,the Hydrapulper throws out the heavy metal objects that can later be sold as waste metal,the rest of the garbage----paper,food,plastic,rubber,glass,wood,leaves,and other items----falls apart.The waste is then mixed with water and carried to another piece of equipment where glass,sand,and pieces of metal are thrown out.
With the Hydrapulper,up to 95 percent of the original garbage is made again useful.The rest is turned into furnace ash.
41.Traditionally,garbage is thought to be ______________.
A.able to recycle but difficult to handle
B.something that can be reused
C.a raw material for making new products
D.a worthless burden to big cities
42.How does the Hydrapulper work?
A.It pumps water into garbage and mixes it.
B.It separates garbage into useful and useless things.
C.It collects heavy metal objects for selling.
D.it throws away glass and sand from garbage.
43.A lot of cities are trying new ways to treat garbage mainly because _______.
A.they need new materials made from garbage
B.they are short of useful materials
C.their traditional way of dealing with wastes is not efficient
D.their environment is becoming more and more dirty
44.What is done to the wastes that are useless when the new way is used?
A.They are thrown away.B.They are stored in a certain place.
C.They are turned into solid objects.D.They are burnt.
45.What is the purpose of this passage?
A.To introduce how the Hydrapulper deals with garbage.
B.To tell what the writer thinks of idea of getting rid of solid wastes.
C.To explain why garbage should be recycled.
D.To describe an experiment in which a Hydrapulper is used
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答案和解析
41.D
42.B
43.C
44.D
45.A