问题 选择题

在金融危机背景下,我国城市房价并没有出现“跳水”现象,高房价并没有从根本上改变。针对“高房价”,下面相关认识正确的是(     )

①供不应求是房价过高的根本原因②建筑成本增加是引起高房价的重要原因③要抑制高房价就必须增加商品房的供应量④要抑制高房价就必须对炒房行为进行有效制约

A.①②③

B.①②④

C.①③④

D.②③④

答案

答案:D

价值是价格的决定因素,故①错误;建筑成本增加,所以带动了房价上扬,故②正确;③是从供给的角度提供了抑制高房价的措施,是正确的;炒房行为会导致更多真正需要房子的人买不到房子,所以国家已经出台规定对炒房行为进行制约,故④正确。

解答题
单项选择题

Come on—Everybody’s doing it. That whispered message, half invitation and half forcing, is what most of us think of when we hear the words peer pressure. It usually leads to no good—drinking, drugs and casual sex. But in her new book Join the Club, Tina Rosenberg contends that peer pressure can also be a positive force through what she calls the social cure, in which organizations and officials use the power of group dynamics to help individuals improve their lives and possibly the word.

Rosenberg, the recipient of a Pulitzer Prize, offers a host of examples of the social cure in action: In South Carolina, a state-sponsored antismoking program called Rage Against the Haze sets out to make cigarettes uncool. In South Africa, an HIV-prevention initiative known as LoveLife recruits young people to promote safe sex among their peers.

The idea seems promising, and Rosenberg is a perceptive observer. Her critique of the lameness of many pubic-health campaigns is spot-on: they fail to mobilize peer pressure for healthy habits, and they demonstrate a seriously flawed understanding of psychology. "Dare to be different, please don’t smoke!" pleads one billboard campaign aimed at reducing smoking among teenagers teenagers, who desire nothing more than fitting in. Rosenberg argues convincingly that public-health advocates ought to take a page from advertisers, so skilled at applying peer pressure.

But on the general effectiveness of the social cure, Rosenberg is less persuasive. Join the Club is filled with too much irrelevant detail and not enough exploration of the social and biological factors that make peer pressure so powerful. The most glaring flaw of the social cure as it’s presented here is that it doesn’t work very well for very long. Rage Against the Haze failed once state funding was cut. Evidence that the LoveLife program produces lasting changes is limited and mixed.

There’s no doubt that our peer groups exert enormous influence on our behavior. An emerging body of research shows that positive health habits—as well as negative ones—spread through networks of friends via social communication. This is a subtle form of peer pressure: we unconsciously imitate the behavior we see every day.

Far less certain, however, is how successfully experts and bureaucrats can select our peer groups and steer their activities in virtuous directions. It’s like the teacher who breaks up the troublemakers in the back row by pairing them with better-behaved classmates. The tactic never really works. And that’s the problem with a social cure engineered from the outside: in the real world, as in school, we insist on choosing our own friends.

According to the first paragraph, peer pressure often emerges as()

A. a supplement to the social cure

B. a stimulus to group dynamics

C. an obstacle to school progress

D. a cause of undesirable behaviors