Question

I.阅读理解[2015 .莆田一中、漳州一中、泉州五中三校高三联考]

If you are sending a text message, watching TV or listening to the radio, you may stop and give this your full attention. Multitasking shrinks (使..... 萎缩)the brain? research suggests.

A study 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. University of Sussex re?searchers said, " Using mobile phones, laptops and other media devices simultaneously could be changing the structure of our brains."

Worryingly, the part of the brain that shrinks is involved in processing emotion. The finding follows research which has linked multitasking with a shortened attention span, de?pression ,anxiety and lower grades at school.

The researchers began by asking 75 healthy men and women how often they divided their attention between differ?ent types of technology. This could mean sending a text mes?sage while listening to music and checking e-mail, or speaking on the phone while watching TV and surfing the Internet. The volunteers were then given brain scans which showed they had less grey matter in a region called the anterior cingu-late cortex (ACC)(前扣带皮层).Scientists have proved that brain structure can be changed on exposure to fresh environ?ments and experience.

Other studies have shown that training—such as learning to play magic tricks or taxi drivers' learning the map of Lon?don―can increase grey matter densities (密度)in certain parts.

Experts have also warned of the harmful impact technol?ogy can have on our memory and attention span. The Univer?sity of California team conducted a survey of more than 18,000 people aged between 18 and 99， and found 20% had problems with memory. Researchers were shocked greatly by the 14 % of 18 to 39-year-old people who also worried about their memories.

  Multitasking may shorten attention span, making it harder to focus and form memories, the researchers said, adding that youngsters may be particularly affected by stress.

1.  The underlined word " simultaneously" in Paragraph 2
means "____________ ，"

A. on one's own                      B.  at no time

C.  at the same time                D.  by accident

2. All of the following are possible effects of multitasking EXCEPT__________ .

 A.     saving time

B.      a shortened attention span

C.      lower grades at school

D.     depression and anxiety

3.  What can increase grey matter densities?

 A.     Sending a text message while listening to music.

B.     Students' doing their homework.

C.     Taxi drivers' learning the map of London.

D.     Speaking on the phone while watching TV.

4.Which of the following can be the best title of this pas?sage?

 A.     Media multitasking is becoming more popular

B.      Multitasking shrinks the brain

C.      Multitasking may shorten attention span

D.   People are worried about their memories

Answer 1

I.阅读理解

[文章大意]本文是一篇说明文。科学家发现同时进行多项活动会改变大脑结构，造成大脑萎缩。多任务同时进行会分散注意力，使得记忆的形成变得困难。压力大的年轻人受到的影响会更大。

1. C 词义猜测题。根据第二段第二句的"…'Using mobile phones, laptops and other media devices simultaneously could be changing the structure of our brains."'可知，同时使用手机、手提电脑和其他媒体设备可能会改变我们的大脑结构。simultane?ously 在句中修饰using 。根据第一段最后一句"Multi tasking

shrinks(使.. 萎缩）the brain, research suggests."中的multi-

tasking"几件任务同时进行"可推断出simultaneously在此处意为"同时进行"。故选C项。

2.A 细节理解题。根据第三段第二句"The finding follows re?search which has linked multi tasking with a shortened attention span* depression* anxiety and lower grades at school."可知选A项。

3.C 细节理解题。根据倒数第三段"Other studies have shown that training—such as learning to play magic tricks or taxi drivers' learning the map of London~-can increase grey matter densities (密度）in certain parts."可知，另一些研究表示训练，例如学变魔术或者出租车司机学习伦敦地图的训练，可以增加特定部分的灰质密度。故选C项。.

4.B推理判断题。本文围绕着多任务同时进行对大脑的影响的科学研究进行说明，用了很多例子和数据说明多项活动同时进行会对大脑产生一些改变，使得大脑萎缩。故选B项。