阅读理解。 Excused from recycling (回收利用) bec

题目：

阅读理解。

     Excused from recycling (回收利用) because you live in a high rise with a rubbish chute (垃圾道)? You

won't be for long. Miami's Mark Shantzis has made it simple for those living in tall buildings to use the chute

and recycle too. 　　

     In Shantzis' Hi-Rise Recycling System, a chute leads to a pie-shaped container with six boxes that can turn

around when operated. The system, which fits in the same space as the chute and container now in use,

enables glass, plastic, paper, metal, and other rubbish to go into separate boxes. 　　

     The system is controlled from a board next to the chute door. The board has a button for each class of

recycling materials (as well as for unrecyclables). At the press of a button, a microcomputer locks all other

floors' chute door and sets the recycling container turning until the right box comes under the chute. The

computer also counts the loads and gives a signal by phone when the box is full. And a particular piece of

equipment breaks up the nonrecyclables 　　

     Sorting (分类) recyclables before they are collected saves the use of expensive materials recovery

equipment which otherwise has to do the sorting. Such equipment often makes recycled materials very

expensive, so expensive that tons of recyclables remain wasted. Shantzis believes his system could help

recycled materials become more cost-effective.

1. The purpose in writing this text is _______. 　

A. to encourage people to recycle their rubbish 　　

B. to introduce a recycling system for high rises 　　

C. to describe the use of computer technology in recycling 　　

D. to explain the need for rubbish collection in high rises

2. When he says "You won't be for long" the writer means that _______. 　　

A. you'll soon be living in a cleaner building 　　

B. rubbish chutes will become out of date before long 　　

C. you won't wait long for your turn to recycle rubbish 　　

D. it won't be long before you'll have to recycle your rubbish

3. Before dropping rubbish into the chute you have to ______. 　　

A. lock the other floors' chute doors 　　

B. check if the container is full 　　

C. press the correct button 　　

D. break up the rubbish

4. The biggest advantage of this new system is that ______. 　　

A. it readuces the cost of recycling 　　

B. it saves time and space 　　

C. it saves money for people living in high rises 　　

D. it makes better use of the existing recovery equipment