16．
The Recycling CenterStudents at an elementary school in Chicago studied ecology （生态学）．They learned that there was so much rubbish that it was a world-wide problem．They asked their teacher if they could do something to help solve the problem．"It is a very big problem．"the teacher said，"but if every community helps，that would really make a difference．"
The students decided to set up a program called Saturday Recycling Center．They would collect rubbish and then get it to a place．The students used the Internet to find out more about recycling in Chicago．They found that there are 15"drop off"places，where people can bring rubbish to get it recycled
The students had to work out how to get the rubbish
to the place．They went to talk with the leader of the church（ 教堂） near their school．
They knew that he drove a van．They asked him to help with their plan．
The churchman agreed to help．He said he would pick up the rubbish on the first Saturday of each month．So everything was organized．All the students needed was rubbish to recycle．
The students made posters to put in stores in the neighborhood．The churchman advertised die new recycling program at the church service．The community center put a note about the recycling center in their monthly newsletter．The students went into the other classrooms at their school and asked children to tell their families about the Saturday recycling．
The first Saturday was beyond their expectations．In fact，they got so many rubbish that the churchman had to make two trips to take it all to the"drop off"place．Now most people in the community know the first Saturday is the time to recycle．
45．The students set up the program toB．
A．help the community
B．collect rubbish for recycling
C．find"drop off"places
D．teach children to solve problems
46．Who helped to pick up the rubbish？D
A．A student．
B．A teacher．
C．A parent．
D．A churchman
47．The community center helped with the program byC•
A．advertising it at the church service
B．asking children to tell their families about it
C．putting o note about it in the monthly newsletter
D．putting posters about it in stores in the neighborhood
48．What does the last paragraph mainly tell us？C
A．Recycling is very hard．
B．The program needs more help．
C．The program is successful．
D．People only recycle on Saturday．
