In a six-week study, experts found people who played online games designed to improve their cognitive(認(rèn)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(激發(fā)) new connections between nerves and produce new brain cells. "Fitness changes the building blocks of the brain's structure," he said.
【小題1】. It can be inferred that the online brain games mentioned in the text are_____________.

A．costlyB．unreliableC．illegalD．effective
【小題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
【小題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
【小題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.

【小題1】B【小題1】B【小題1】C【小題1】B

解析

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

My name is Jane Eyre and my parents died when I was a baby. For ten years I lived a ___1___ life with my aunt and cousins who treated me unfairly. My cousins teased me and my aunt never showed me any ___2___. The only person who cared about me was the maid, Bessie. One day my cousin John 3 me: “You should go and beg, not live with rich folks like us!” After fighting with him I was locked in a room, where I ___4___ for hours crying.

Things ___5___ the same until a tall gentleman called Mr Brockehurst came to visit. My aunt told me that I was going to a school ___6___ by the gentleman. “Train her to be useful and humble,” said Aunt. Two days later I ___7___  my home.

At first my ___8___ at Lowood School was easy. The food was bad and I was often cold but I made ___9___ and enjoyed studying. But after an illness killed several students, new owners ___10___ the school and life improved. Six years later I ___11___ teacher and was very happy. But eventually(最后) I felt that I should explore more of the world and found a job as a private teacher in a ___12___. w.w.w.k.s.5.u.c.o.m

Before I left Lowood, I was ___13___ by Bessie, who told me that seven years ago my father’s brother had come ___14___ me but left again to go abroad. “He looked like quite a gentleman,” said Bessie. I wondered if he would ever look for me again.

My new life ___15___ at Thornfield Hall, a large country house, ___16___ a little girl called Adele. She was the adopted(被收養(yǎng)的) daughter of the owner of the house, Mr Rochester. He ___17___ stayed at Thornfield and ___18___ my time was mainly spent with Adele and the servants. My life was quite happy now although there was something ___19___ about my new home. Often I heard odd(奇怪的) sounds ___20___ from the top floor of the house.

1. A. happy     B. long    C. sad     D. comfortable

2. A. food       B. love    C. method      D. schooling

3. A. shouted at      B. cried over   C. found out   D. talked with

4. A. lived      B. stayed C. studied       D. beat

5. A. appeared B. worked      C. seemed       D. remained

6. A. built       B. designed     C. owned D. opened

7. A. built       B. reached      C. left     D. sold

8. A. food       B. life     C. book   D. study

9. A. noise      B. friends       C. mistakes     D. faces

10. A. took over     B. took up      C. took off     D. took away

11. A. turned   B. met     C. became      D. found

12. A. school  B. home  C. library       D. country

13. A. taught   B. visited C. brought      D. required

14. A. looking for       B. looking after   C. looking into       D. looking at

15. A. stopped B. continued   C. started D. remained

16. A. showing       B. teaching     C. searching    D. wanting

17. A. often    B. hardly C. happily      D. quietly

18. A. yet       B. so       C. still     D. though

19. A. interesting    B. good   C. instructive  D. strange

20. A. come    B. drop   C. fall     D. go

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

閱讀下面短文,從短文后所給的A、B、C、D四個選項(xiàng)中,選出一個可以填入空白處的最佳選項(xiàng),并用鉛筆把答題卡上對應(yīng)題目的答案標(biāo)號涂黑。

My son was badly hurt in a fire. After he   36   from a series of treatments, the doctors told him they would not do any operation for six months   37   it took long for the skin to stop shrinking(萎縮), he had to return to college with a visible 10-inch   38    on his face.

I said to my son, “Keaton,   39    will pay any more attention to your scar  40   you do. If it does not bother you, it will not bother others,   41  .” He took my advice to heart and returned to school with his head  42   high — glad he was alive.

  43   , everyone has scars and shortcomings. Some of you may spend much time thinking that people   44   like you better, if you looked different, or dressed differently, or could have a different and newer  45 .

But you see, like Keaton’s scar, people will only judge you by your looks, or your  46   , or your car, if you are judging yourself by these same false  47 .

One of my friends in college was very  48  . At first, when people met him, they noticed his  49   for about 10 seconds. But this man felt good about himself and spent most of his time  50   about other people’s comfort and welfare.  51  , people ignored his looks. w*w^w.k&s#5@u.c~o*mWhat people  52  was his kindness and his concern for them. He didn’t act in an ugly way so people didn’t  53   him an ugly man.

Therefore, concentrate on   54   you value with yourself, because if you can see that beautiful person, everyone you are in contact with will see the same  55  .

A. cured          B. recovered C. improved             D. returned

A. because        B. though      C. until            D. unless

A. cut       B. wound          C. injure          D. scar

A. none     B. anyone     C. everyone      D. no one

A. then           B. like        C. than             D. when

A. yet   B. still     C. too     D. either

A. put       B. held         C. taken          D. hung

A. After all       B. In conclusion          C. In fact    D. Above all

A. will  B. would C. can     D. may

A. flower    B. telephone   C. job             D. car

A. clothes    B. hairstyle     C. figure          D. salary

A. deadline   B. standards   C. custom           D. rules

A. smart       B. optimistic       C. rude            D. ugly

A. manners     B. gesture          C. looks          D. actions

A. needing B. asking C. knowing     D. caring

A. Completely   B. Gradually     C. Obviously       D. Suddenly

A. wanted       B. understood    C. brought        D. saw

A. regard   B. look    C. consider     D. treat

A. what      B. that     C. which D. how

A. friend    B. development      C. beauty D. perfection

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

I first went to Harrow in the summer term. The school had the biggest swimming pool I had ever seen. It was a good joke to come up behind a naked boy, and push him into the pool. I made quite a habit of this with boys of my own size or less

One day I saw a boy wrapped in a towel on the side of the pool. He was no bigger than I was, so I thought him a fair game. Coming secretly behind, I pushed him in, holding on to his towel so that it would not get wet, I was surprised to see an angry face come out from the water, and a being of great strength making its way by fierce strokes(猛力地劃) to the shore. I fled, but in vain. He overtook me, seized me violently, and threw me into the deepest part of the pool. I soon climbed out on the other side, and found myself surrounded by a crowd of younger boys. “Do you know what you have done?” they said, “It’s Amery; he is in Grade Six. He is champion at gym, he has got his football honor.”

I was frightened and felt ashamed. How could I tell his position when be was wrapped in a bath towel and so small. He didn’t seem pleased at all, so I added in a most brilliant word, “My father,  who is a great man, is also small.” At this be laughed, and after some general words about my rude behavior and how I had better be careful in the future, signified the incident was closed.

1. The writer thought Amery “a fair game” because the boy        .

  A. looked like an animal                    B. was fond of games w*w*

C. was of similar size                   D. was good at sports

2. The writer felt “ashamed” because        .

  A. he was laughed at by other boys 

B. Amery turned out to be in the same grade

C. he pushed Amery hard and hurt him     

D. he played a joke on an outstanding athlete

3. By saying “My father, who is a great man, is also small”, the writer        .

  A. tried to please Amery                    B. challenged Amery

C. threatened Amery                   D. admired his father

4. Which of the following is TRUE?

A. The writer could run faster than Amery.

B. The writer liked playing on boys of all sizes.

C. Amery was a student in Grade Four.

D. Amery forgave the writer for his rude behavior

5. What does the underlined word “overtook” mean?

A. catch hold of                                       B. catch up with

C. take a look at                                        D. shout at

查看答案和解析>>

科目：高中英語 來源：2011屆江西省南昌市鐵路一中高三10 月月考英語卷 題型：閱讀理解

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．
【小題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
【小題2】Which of the following belong to the ten leadership qualities considered?
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(chǎn),b,cB．b,c,dC．a(chǎn),b,dD．a(chǎn),c,d
【小題3】Who is rated worst among the following four presidents?[來源:學(xué)|科|網(wǎng)]
A．John F．KennedyB．George Washington
C．Bill ClintonD．George W．Bush
【小題4】The text is mainly about ________．
A．the ten qualities a great president needs
B．a(chǎn) study of American presidents
C．the values the American nation honors most
D．how Abraham Lincoln improved the country

查看答案和解析>>

科目：高中英語 來源：河北省2010屆高三下學(xué)期模擬考試Ⅰ試卷（英語） 題型：單詞拼寫

.

卷Ⅱ（非選擇題共55分）　

　第一節(jié) 單詞拼寫（共10題，每小題1分；滿分10分）

據(jù)下列句子及所給漢語注釋，寫出空缺處各單詞的正確形式。（每空只寫一詞）

66. 1. I wonder why Jack hasn’t w_____ to us recently. We should have heard from him by now.

67.There was no lift and we had to climb six f_______（一段樓梯）of stairs.

68.People should wash ______(定期)to ensure personal health.

69.I think you o ____ us an apology for not informing us of the important news in time.

70. He told us that the _______(北部)part of his country had many mountains.

71.We reached our destination, tired and _______（饑餓）.

72.Exercise firms the body, strengthens the muscles, and prevents you from gaining w_____.

73.The whole day we unpacked the boxes, filled the cupboards and tidied, until we were _____(極其)tired.

74. The house is h_______by trees, so it is hard for us to find it .

75. He left his village school and _____（教）himself while working in a factory.

 

查看答案和解析>>

同步練習(xí)冊答案