单项选择题

Is the goal to make all of our paper from waste It’’s a (47)______ question. If we collect enough waste, could companies stop using wood altogether The answer is no—but, (48)______ to popular belief, this is not a bad thing. Although (49)______ rates are higher than ever before, there isn’’t enough to meet the growing demand—not even close. In addition to the fact that people still throw away a lot of (50)______ good paper, there’’s also some that’’s (51)______ and can’’t be recycled (think pizza boxes) , and lots that’’s never thrown away at all (such as books, magazines and filed documents). Another issue is quality. Wood (52)______ can be recycled between five and seven times before they become too weak and fall apart—so companies have to keep (53)______ new fiber into the system. If you talk to designers and printers, they’’ll also tell you that certain design applications can’’t be met using paper with high recycled (54)______ . Recently, some environmentalists have also expressed their belief that using wood is the best way to (55)______ widespread forest abundance, because it sends a signal to the marketplace to plant more trees. Thanks to market demand, landowners have a clear incentive to keep lands (56)______ instead of converting them for other uses such as agriculture. A) contrary I) profession B) soiled J) forested C) perfectly K) ensure D) apply L) continually E) common M) analyzing F) planting N) introducing G) recovery O) fibers H) content