Question

I.閱讀理解[2015 .莆田一中、漳州一中、泉州五中三校高三聯(lián)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..... 萎縮)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)(前扣帶皮層).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.閱讀理解

[文章大意]本文是一篇說明文�？茖W(xué)家發(fā)現(xiàn)同時進行多項活動會改變大腦結(jié)構(gòu)，造成大腦萎縮。多任務(wù)同時進行會分散注意力，使得記憶的形成變得困難。壓力大的年輕人受到的影響會更大。

1. C 詞義猜測題。根據(jù)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，同時使用手機、手提電腦和其他媒體設(shè)備可能會改變我們的大腦結(jié)構(gòu)。simultane?ously 在句中修飾using 。根據(jù)第一段最后一句"Multi tasking

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

tasking"幾件任務(wù)同時進行"可推斷出simultaneously在此處意為"同時進行"。故選C項。

2.A 細節(jié)理解題。根據(jù)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."可知選A項。

3.C 細節(jié)理解題。根據(jù)倒數(shù)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，另一些研究表示訓(xùn)練，例如學(xué)變魔術(shù)或者出租車司機學(xué)習(xí)倫敦地圖的訓(xùn)練，可以增加特定部分的灰質(zhì)密度。故選C項。.

4.B推理判斷題。本文圍繞著多任務(wù)同時進行對大腦的影響的科學(xué)研究進行說明，用了很多例子和數(shù)據(jù)說明多項活動同時進行會對大腦產(chǎn)生一些改變，使得大腦萎縮。故選B項。