Life today has brought about new problems．One of the biggest problems of every nation is pollution．In America，there are laws to keep the air and water pure and clean．These are new laws and it has taken much time to clean a polluted river or lake．Now the fish are healthy again and people can enjoy swimming in clean water．
When food is brought from the grocery store to the home，it is packaged in paper，glass，tin，or plastic．Every day a newspaper comes to the home．Americans used to put all these materials in the garbage（垃圾）can which is picked up by a large truck．The truck takes these materials to a garbage dump（垃圾堆）or land fill．The truck dumps the garbage into a large hole and then land is pushed over the garbage until the hole is filled．Then，a new hole must be found．
As the years went by，the garbage increased as the pollution GREw．Scientists suggested that some garbage could be used again．They suggested four ideas to businessmen who could make money by recycling or using paper，glass，tin，and plastic again．
Now，a recycling truck comes to each home once a week to pick up materials．American families collect their newspapers in boxes and clean all glass，tin，and plastic．The truck takes them to a factory for recycling．
The newspaper is ground up into very small pieces and made into new paper again．The glass is divided into colours of GREen，brown，and clear mostly．The glass is crushed（捣、碾）and made into new glass．The tin is cleaned and melted so it can be made into new tin cans．The plastic is melted down so it can be used to make new containers．
Recycling is a way to save the environment from pollution by using many materials again．
1．The food is so that we can take it to home easily．
A．kept in fridges B．packaged in paper，glass，tin or plastic
C．put in box，bag D．kept fresh
2．What did Americans use to do with the garbage？
A．They burned all the garbage．
B．They threw the garbage into the lakes or rivers．
C．They dumped all the garbage into a large hole．
D．They pushed land over the garbage until the hole was full then found another new hole．
3．Which of the following is their answer to the problem of pollution？
A．Burying the garbage into large holes in the ground．
B．Finding new land to fill with garbage．
C．Keeping the air and water pure and clean．
D．Recycling used paper，glass，tins and plastic bags．
4．In this passage the writer suggests that people ．
A．use garbage B．not pollute rivers or lakes
C．recycle paper，glass，tin，and plastic
D．both B and C
5．This passage does not tell us that ．
A．people keep cans for recycling
B．in America，there are new laws to fight pollution
C．air pollution is the most serious kind of pollution
D．the newspaper can be made into new paper again
6．Which is NOT true？
A．Trucks take old newspapers，used glass，tins and plastic bags to factories for recycling．
B．Old newspapers ground up into very small pieces can be made into new paper．
C．Tins are crushed and made into new tins．
D．Plastic is made into new containers by being melted down．
参考答案：
1—6BCDDCC
