①Lately，researchers have done an experiment on whether online brain games can improve people's IQ.More than 8，600 people aged 18 to 60 were asked to play online brain games designed by the researchers to improve their memory，reasoning and other skills，for at least 10 minutes a day，three times a week.They were compared to more than 2，700 people who didn't play any brain games，but spent a similar amount of time surfing the Internet.All participants were given an "IQ test" before and after the experiment.
   ②Researchers found the people who did the brain training didn't do any better on the test after six weeks than people who had simply been on the Internet. "If you're playing these games like SNAKE（贪吃蛇）because they're fun，that's absolutely fine，" said Adrian Owen，the study's lead author. "But if you're expecting these games to improve your IQ，our studies suggest they don't work."
   ③It's also found that brain games which are supposed to improve memory，reasoning and other cognitive （认知的） skills are played by millions of people worldwide，though few studies have examined if the games work.Not many studies suggest the skills used in these brain games transfer（迁移）to the real world.
   ④Instead of playing brain games，the professor，Kramer said people would be better off getting some exercise.He said physical activity can help produce new brain cells.
   ⑤Other experts said brain games might be useful，but only if they weren't fun. "If you set the level for these games to a very high level where you don't get the answers very often and it really annoys you，then it may be useful，" said Philip.
   ⑥If people are enjoying the brain games，they probably aren't being challenged and might as well be playing a regular video game.Philip said people should consider learning a new language or sport if they really want to improve their brain power. "Computer games were not an easy shortcut.Getting smart is hard work." he added.

（1）According to the article，

D

D

is NOT useful to develop brain power.
A．learning a language
B．getting some physical exercise
C．playing challenging games
D．playing fun games
（2）What can we infer from the studies in the article？

B

B

A．Many studies show that brain games are an effective way of improving IQ.
B．Few studies suggest the skills used in these brain games transfer to the real world.
C．People may get smarter if they do more physical activities such as running and swimming.
D．Surfing the Internet may be more effective in improving cognitive skills than video games.
（3）What would be the best title for the article？

A

A

A．Does SNAKE Make You Smarter？
B．Is Getting Smarter as Easy as Playing Games？
C．How Can We Play Brain Games Well？
D．How Can We Get Smarter？