A study made by University of Sussex found that men and women who frequently use

题干

A study made by University of Sussex found that men and women who frequently used several types of technology at the same time had less grey matter in a key part of the brain . The researchers said : “ Simultaneously（同时）, using mobile phones , laptops and other media devices could change the structure of our brains . ” Worryingly , the part of the brain that shrinks is involved in processing emotion . The finding has linked multi-tasking with a shortened attention span , depression , anxiety and lower grades at school .
The researchers began by asking 75 healthy men and women how often they divided their attention between different types of technology . This could mean sending a text message while listening to music and checking email , or speaking on the phone while watching TV and surfing the web . The volunteers were then given brain scans which showed they had less grey matter in a region called the anterior cingulated cortex ( ACC ) . The findings held even when differences in personality were taken into account . The study , published in the journal PLOS ONE , is the first to make a link between multi-tasking and the structure of the brain .
Researcher KepKeeLoh said : “ Media multi-tasking is become more popular in our lives today and there is growing concern about its impacts on our cognition and social-emotional well-being . ” He added that more researches are needed to prove that multi-tasking shrinks the brain . This is because it is also possible that people with less grey matter in the ACC are more likely to use lots of devices simultaneously .
Scientists have previously described brain structure can be altered on prolonged exposure to new environments and experience . Other studies have shown that training – such as learning magic or taxi drivers learning the map of London – can increase grey matter densities（密度）in certain parts .
【小题1】What can we learn about grey matter from the passage ?

A．Watching the TV for a long time can reduce grey matter .

B．The decrease of grey matter in the ACC affects emotion .

C．People with less grey matter prefer to use media devices .

D．Taxi drivers in London have more grey matter than others .

【小题2】We can know about the study by University of Sussex that __________ .

A．the volunteers in it have lower grades at school

B．it can change the structure of grey matter in our brain

C．it is the first to link multi-tasking with the structure of the brain

D．the findings of it have been supported by some other researches

【小题3】 How does the researcher , KepKeeLoh , feel about the study ?

A．Surprised .	B．Cautious .
C．Disappointed .	D．Confused .

【小题4】What’s the purpose of the passage ?

A．To inform people of the findings of a research .

B．To stress the importance of grey matter in our brain .

C．To advise people to do more training about our brain .

D．To warn people of the possible danger of media devices .

上一题下一题 0.99难度阅读理解更新时间:2016-03-08 07:22:56

答案(点此获取答案解析）

同类题3

Canada’s Alice Munro, called the “master of the contemporary short story”, won the 2013 Nobel Prize in Literature. After that, the Nobel committee（委员会）said on Twitter that it hadn’t been able to contact Munro and left a phone message to tell her the good news. But The Canadian Press contacted her, and she was quoted as saying the award was "quite wonderful"and she was "terribly surprised".

Douglas Gibson, Munro's publisher read a statement on the author's behalf. "I am amazed and very grateful. I am particularly glad that winning this award will please so many Canadians. I'm happy that this will bring more attention to Canadian writing," she said, according to Gibson.

"Munro is acclaimed for her finely tuned storytelling，which is characterized by clarity and psychological realism（现实主义），"the Nobel committee said.

The author has won many honors over the years，including the 2009 Man Booker International Prize. "Alice Munro is mostly known as a short story writer and yet she brings as much depth，wisdom and precision to every story as most novelists bring to a lifetime of novels，"the Man Booker judging committee said at the time.

Munro，who lives in Huron County in southwestern Ontario，was born near there in Wingham. She started writing stories in her teen years and studied journalism and English at the University of Western Ontario. She started publishing in various magazines in the 1950s. In 1968，she published Dance of the Happy Shades，a collection of short stories. In 1971 she published a collection of stories entitled Lives of Girls and Women，which critics have described as a coming-of-age work.

Munro gained world fame for writing about everyday people. "Here is a world prize being won by someone who writes about housewives in Vancouver, booksellers in Victoria, bean farmers in Huron County and accountants and teachers and librarians — ordinary Canadian people, and she turns them into magic," Gibson said.