2．A new set of R's is here：Recycle，Reduce and Reuse．These three"Rs"，when used every day，can reduce the amount of waste going into landfills，reduce the litter polluting the land and water，conserve（节约，保存）energy and save you money．
Recycling is one of the easiest ways to save energy，money and time while reducing the amount of garbage going into landfills．
Most communities have roadside pick-up service to recycle common household items like glass，steel，aluminum，newspaper and cardboard．By separating out the recyclable items from normal household trash，you can reduce the amount of trash entering a landfill by more than 75percent．
Recycling one aluminum beverage can（饮料罐）saves enough energy to run your television for three hours．Even better，local recyclers or scrap-metal dealers may pay money for your metal recyclables．
It is estimated that the 54billion cans recycled last year in the US saved l5million barrels of oil．That is equivalent（相等的）to the US oil consumption for one day．Recycling other household items offers similar savings in money and energy．
Composting food waste will reduce your trash load even more．A basic compost pile built with the help of instructions from numerous resources on the web can be constructed over a weekend，using materials easily obtained from local hardware or home improvement stores．In addition to reducing your waste，this all-natural recycling provides safe，clean and organic fertilizer for your garden，eliminating the need to buy chemical-derived products．
Finally，recycling other household items like computers，televisions and monitors and household chemicals like pesticides（农药）and paints will remove dangerous chemicals like mercury（水银）and lead from the landfills．
If your community doesn't offer recycling programs，contact your local government to get one established．
46．What's WRONG about recycling in the eyes of the author？C
A．It's energy-efficient． B．It's money-saving．
C．It's time-consuming． D．It's environmentally friendly．
47．RecyclingCaluminum beverage cans saves enough energy to keep your TV on for half a day．
A．six B．five C．four D．three
48．What's the possible meaning of the underlined word"Composting"in the sixth paragraph？A
A．To turn waste into fertilizer． B．To throw waste into dustbin．
C．To make waste clean and useful． D．To find new land to put the rubbish in．
49．The following paragraph of the text may talk aboutA．
A．something about reusing B．recycling programs
C．community activity D．environment protection
50．The text tells us the way of living aC life．
A．happy B．rich C．green D．economical．
