11．
At Yellowstone National Park，the cups used for soda （苏打汽水） are made of a special kind of plastic．When they are heated for a few minutes，they will break up．
At Ecco，a popular restaurants in Atlanta，waiters no longer throw uneaten food into trash cans．Instead，the food is sent away and used to make compost（混合肥料）．
In America，a new activity known as"zero waste"is on the rise．It is carried out in schools，cafes，parks，restaurants，and so on．"zero waste"activity calls on people to produce less trash．It encourages people to reuse whatever they can．
Although the idea seems to be a little unrealistic，it is necessary．According to a new report，American people produces about 4.6pounds of trash each day．More than half of the trash is put into landfills （废物填埋地） and then burned．This is bad for the environment．Besides this，more landfill are needed．
"Nobody wants to have a landfill near his house，"said Jon D．Johnston from the Environmental Protection Agency，which helps to carry out"aero waste"activity．"There are not enough landfills，so we can't put all our trash into them．We should try to recycle it as much as we can，"he added．
41．At Yellowstone National Park，the soda cups willC when they are heated for a few minutes．
A．be filled
B．be taken away
C．get broken
D．be thrown away
42．At Ecco，uneaten food isA．
A．sent away and used to make compost
B．cooked and served again
C．put into landfills
D．thrown into trash cans
43．"Zero waste"activity in American calls on people toD．
A．make compost
B．find enough landfills
C．burn more kitchen waste
D．recycle whatever they can
44．According to the passage，the idea of"zero waste"isC．
A．funny and crazy
B．realistic but difficult
C．unrealistic but necessary
D．creative but unnecessary
45．From the passage we knowB．
A．"zero waste"activity orders Americans to produce no trash
B．most of the trash is put into landfills and then burned in America
C．most of the trash is recycled and reused as much as possible in America
D．each person produces about 4.6pounds of trash every day around the world．
