[填空题]No wonder it’s so difficult to kick the habit, smokers who watch movie stars light up cigarettes on screen simultaneously activate the parts of the brain needed for the same task.
Previous studies have shown that watching screen smoking activates parts of the brain involved in aspiration and reward, but the new research is the first to show that priming for the physical act of lighting up becomes automatic too.
"What’s particularly novel about these findings is that viewing movie smoking activated regions involved in understanding and planning actions," says lead author Dylan Wagner of Dartmouth College in Hanover, New Hampshire.
Wagner used an fMRI (功能性磁共振成像术)to scan the brain of 17 smokers and an equal number of non-smokers while they viewed scenes from the film Matchstick Men, which included several clips of actors lighting up. The volunteers were unaware that their reactions to smoking were being analysed.
Only in smokers did Wagner see activation of par

[填空题]No wonder it’s so difficult to kick the habit, smokers who watch movie stars light up cigarettes on screen simultaneously activate the parts of the brain needed for the same task.
Previous studies have shown that watching screen smoking activates parts of the brain involved in aspiration and reward, but the new research is the first to show that priming for the physical act of lighting up becomes automatic too.
"What’s particularly novel about these findings is that viewing movie smoking activated regions involved in understanding and planning actions," says lead author Dylan Wagner of Dartmouth College in Hanover, New Hampshire.
Wagner used an fMRI (功能性磁共振成像术)to scan the brain of 17 smokers and an equal number of non-smokers while they viewed scenes from the film Matchstick Men, which included several clips of actors lighting up. The volunteers were unaware that their reactions to smoking were being analysed.
Only in smokers did Wagner see activation of par

[单项选择]Smokers who want to kick the habit might soon get help from a product that’s being tested at the University at Buffalo School of Dental Medicine: a mouth wash that makes cigarettes taste bad. It could be on the market within a year.
The anti-smoking rinse itself tastes rather pleasant. But if you light up within 6 to 8 hours of smoking it, your cigarette will taste like burnt rubber and you won’t smoke past the first puff, explains Dr. Sebastian Ciancio, director of the Center for Dental Studies at the University of Buffalo.
Ciancio is heading up a pilot study in which 10 smokers, each of whom normally smoke at least a pack of cigarettes a day, are rinsing their mouths three times daily with the anti-smoking solution. Another 10 are getting a placebo. Prior to this study, only the inventor had tested the anti-smoking rinse—a chemist who does not wish to be identified—and a few of his friends, who say it enabled them to quit smoking.
And Ciancio has no shortage of v
A. 10.
B. 21.
C. over
D. 20.

[单项选择]What does the passage say about the secondhand smoke
A. It threatens public health.
B. It gets more serious in the United States.
C. It is more dangerous than AIDS.
D. It is a topic of public debat

[单项选择]What habit has the woman recently gotten into
A. Telling jokes.
B. Falling asleep during meals.
C. Staying late after class.
D. Eating in the cafeteria.

[填空题]British people have the habit of reading newspapers in the ______.

[单项选择]The unique human habit of taking in and employing animals--even competitors like wolves--spurred on human tool-making and language, which have both driven humanity’s success, Pat Shipman says, paleoanthropologist of Penn State University. "Wherever you go in the world, whatever ecosystem (生态系统), whatever culture, people live with animals," Shipman said.
For early humans, taking in and caring for animals would seem like a poor strategy for survival. "On the face of it, you are wasting your resources. So this is a very weird behavior." Shipman said. But it’s not so weird in the context something else humans were doing about 2.6 million years ago: switching from a mostly vegetarian diet to one rich in meat. This happened because humans invented stone hunting tools that enabled them to compete with other top predators. Quite a rapid and bizarre switch for any animal. So we invented the equipment, learned how to track and kill, and eventually took in animals who also knew how to hunt--
A. Early humans were poor in survival resources.
B. Taking in animal was a very weird behavior.
C. Early humans didn’t know how to track and kill.
D. Early humans switched from a vegetarian diet to meat.