D As public playgrounds grow increasingly worn and shabby, the for-profit centers offer clean, safe, supervised activity as well as a variety of challenging exercises to develop youngsters’ physical fitness, usually for a fee of around $5 an hour. “Playgrounds are dirty, not supervised,” says Dick Guggenheimer, owner of the two-month-old Discovery Zone in Yonkers, N.Y., part of a Kansas City-based chain. “We’re indoors; we’re padded(铺上软垫); parents can feel their child is safe.” Discovery Zone has sold 120 outlets in the past 14 months, boasting sandboxes full of brightly colored plastic balls, mazes(迷宫), obstacle courses, slides and mountains to climb. Now McDonalds is getting into the act. The burger giant is test-marketing a new playground, Leaps&Bounds, in Naperville, Ill. Phys Kids of Wichita has opened one center and has plans to expand. American parents are rightly worried about their kids leisure life. There are 36 million children in the U.S. aged 2 to 11 who watch an average of 24 hours of TV a week and devote less and less energy to active recreation. Nationwide decrease in education budgets are the problem worse, as gym classes and after-hours sports time get squeezed. Says Discovery Zone president Jack Gunion: “we have raised a couple of pure couch potatoes.” In an attempt to attract more people , the new facilities cater to the concerns of two-earner families, staying open in the evenings, long after traditional public playground have grown dark and unusable. At Naperville’s Leaps&Bounds, families can play together for $4.95 per child, parents free. Fresh-faced assistants, dressed in colorful sport pants and shirts, guide youngsters to appropriate play areas for differing age group. These new playground are not meant to be day-care facilities; parents are expected to stay and play with their kids rather than drop them off. But several also provide high-tech baby-sitting services. At some of the Discovery Zones, parents can register their children in special supervised programs, then leave them and slip away for a couple of hours to enjoy a movie or dinner. The most fun of all, though, is getting to do what parents used to do in the days before two-career families and two-hour commutes: play with their kid. That, at least, is old-fashioned, even at per-hour rates. 68. What is this article mainly talking about? A. Children can play in the public playground without parents’ care. B. The fast development of Discovery Zone. C. A new type of playground for kids. D. The decay of outdoor playground. 69. According to the article, which of the following is true to the new playground? A. The cost is high for a family. B. It’s a place where kids can watch TV while eating potatoes. C. It doesn’t allow parents to leave their kids. D. It’s a place where parents can play together with their kids. 70. What does the writer mean by saying “old-fashioned”? A. The so-called new playground is outdated. B. the new playground offers a fashion which is popular in the past. C. The new playground is also enjoyed by old people. D. The new playground is actually enjoyed by parents 71. What is the writer’s attitude toward the new playground? A. Agreeable.         B. Indifferent.        C. Objective.         D. Neutral.