题目内容
In a six-week study, experts found people who played online games designed to improve their cognitive(认知的) skills didn't get any smarter.
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 and answering general knowledge questions. All participants were given a sort of I.Q test before and after the experiment.
Researchers said 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. On some sections of the test, the people who surfed the Net scored higher than those playing the games.
"If you're (playing these games) 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 I.Q., our data suggests this isn't the case," he said during a press briefing on Tuesday.
One maker of brain games said the company's games have been proven to boost brain power.
"Their conclusion would be like saying, 'I cannot run a mile in under 4 minutes and therefore it is impossible to do so," Aldrich said in a statement.
"There is precious little evidence to suggest the skills used in these games transfer to the real world," said Art Kramer, who was not linked to the study and has no ties to any companies that make brain training games.
Instead of playing brain games, Kramer said people would be better off getting some exercise. He said physical activity can spark(激发) new connections between nerves and produce new brain cells. "Fitness changes the building blocks of the brain's structure," he said.
1.. It can be inferred that the online brain games mentioned in the text are_____________.
A. costly B. unreliable C. illegal D. effective
2.. Which of the following statements is true about the experiment in the second paragraph?
A. The experiment lasted for a week.
B. Age didn’t affect the result of the research.
C. Every person played online brain games three times a day.
D. People who didn’t play online brain games did better in I.Q test
3.. What can we learn from the text?
A. Playing games which are fun can improve your I.Q.
B. There is a lot of evidence to suggest skills can transfer to the real world.
C. Do physical activity can boost your brain power.
D. Playing online games can spark new brain cells
4.The underlined sentence suggests that ___________.
A. The research was not linked to the study
B. Those playing the games can score higher in the test
C. playing the games can spark new connections between nerves
D. This isn’t the case that these games can improve your I.Q.
1.B2.B3.C4.B
【解析】略
Recently, a study was carried out to determine who was the greatest American president.Sixty-five presidential historians took part in it, and they judged the past forty-two American leaders based on ten leadership qualities, including public persuasiveness (信服), crisis leadership, management of the economy, moral leadership, and conduct of international relations.The historians also looked at administrative (管理) ability, relations with Congress, ability to set goals, and the pursuit of equal justice for all.Finally, the experts took into consideration the historical period in which the president lived.
The historians chose Abraham Lincoln as American’s greatest president.He had also been named best president in a similar study in 2000.Abraham Lincoln was the president who led the nation through the Civil War in the 1860s, and was able to unite it in the end.He also took the first steps to abolish slavery in America.
Edna Medford, a professor of history at Howard University in Washington, D.C., was an adviser on this study and the earlier one.She says Abraham Lincoln is seen to represent the values the nation most honors, such as truthfulness, moderation, and respect for human rights.
The historians put American’s first president, George Washington, second on the list, while Franklin D.Roosevelt, Theodore Roosevelt, and Harry Truman follow in that order.John F.Kennedy, the country’s first Roman Catholic president, is sixth on the list.Like Lincoln, Kennedy was murdered while in office.
Among recent presidents, Ronald Reagan was named the tenth best and Bill Clinton rated fifteenth, while the historians put former president George W.Bush at number thirty-six.His father, George H.W.Bush, did much better, being placed at number eighteen.
【小题1】We learn from the text that ___________.
A.this is the second time that Abraham Lincoln has been chosen as America’s greatest president |
B.Edna Medford didn’t take part in the study conducted in 2000. |
C.George H.W.Bush was thought to have done worse in office than George W.Bush |
D.Harry Truman was rated the fourth-best president by the study |
a.Being able to persuade the public
b.Taking effective measures during a financial crisis.
c.Balancing home life and career.
d.Pursuing equal justice for all.
A.a,b,c | B.b,c,d | C.a,b,d | D.a,c,d |
A.John F.Kennedy | B.George Washington |
C.Bill Clinton | D.George W.Bush |
A.the ten qualities a great president needs |
B.a study of American presidents |
C.the values the American nation honors most |
D.how Abraham Lincoln improved the country |