For smokers, the world is an increasingly hostile place. Driven out of bars and other public spaces, smokers are now to be found

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问题     For smokers, the world is an increasingly hostile place. Driven out of bars and other public spaces, smokers are now to be found cowering (蜷缩) down cold and smelly alleyways. To add to their misery, each day seems to bring a new study showing how vile and dangerous the cigarette smoke can be. Could things get any worse? Possibly, if smokers were also knocked off their comfortable perch within popular culture. For in rich countries they can at least rely on films to portray their habit as somewhat more normal and prevalent than it actually is in the real world. Indeed, Hollywood has long been accused of glamorizing (美化) smoking.
    Research has identified links between smoking in films and the consumption of cigarettes by those leaving a cinema. What prompts such a response is unclear. But it is clearly relevant to those involved in public-health policy. Dylan Wagner and his colleagues at Dartmouth College, in New Hampshire, therefore decided to investigate the question.
    They put 34 people, half of them smokers, into a functional-magnetic-resonance imager to detect changes in the blood flow in the brain. Participants were asked to watch the first 30 minutes of Matchstick Men. When smokers viewed a scene that included smoking, they showed greater activity in those parts of the brain involved in perception and in the co-ordination of actions—the areas known to interpret and plan hand movements—as though they, too, were about to light a cigarette. This activity also corresponded to the hand that the volunteer used when smoking. Non-smokers showed no such enhancement. The part of the brain affected is the home of what is known as the mirror system. This induces, from mere observation, emotions and sensations similar to those induced by actual experience—for example, fear when a large spider is climbing the leg of an actor in a film. That it might provoke a desire to smoke is thus no surprise.
    Scott Heuttel, a neuroscientist at Duke University, in North Carolina, says that it has long been known that visual cues induce drug cravings, and that this study builds on a growing body of evidence showing that addiction may be reinforced not just by the drugs themselves but by images and other experiences associated with those drugs. Although smokers trying to quit are advised to avoid other smokers, and to remove smoking-related paraphernalia (用具) from their homes, it might not occur to them to avoid films in which smoking is depicted.
    No doubt, though, it will occur to society’s nannies (保姆) to remove the temptation altogether. Expect, on the basis of findings like this, a drive to purge films of characters who smoke. Unfortunately for smokers there is, as a gravelly voice-over might say in Hollywood, "No Place to Hide."
Dylan Wagner and his colleagues launched an investigation to figure out______.

选项 A、why many smokers get hooked on smoking
B、how the smoking scene in films induces smoking behavior
C、whether Hollywood should have smoking scenes in its films
D、when a new cure for addiction to smoking will be found

答案B

解析 细节辨认题。联系第二段前两句可知,有研究通过对那些看过电影的人进行调查,确认了电影中的吸烟镜头和烟草消费之间存在关联。人们还不清楚是什么促使了这种结果,因此Dylan Wagner和他的同事们决定研究这个问题。由此可见,他们开展研究是为了弄清楚电影中的吸烟镜头如何诱发吸烟行为,因此答案为B)。
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