4．As any plane passenger will confirm，a crying baby is almost impossible to ignore，no matter how hard you try．Now scientists believe they may have worked out why．A baby's cry pulls at the heartstrings（扣人心弦） in a way while other cries don't，researchers found．
Researchers found that a baby's cry can trigger unique emotional responses in the brain，making it impossible for us to ignore them---whether we are parents or not．Other types of cries，including calls of animals in great pain，fail to get the same response---suggesting the brain is programmed to respond specifically to a baby's cry．
A team of Oxford University scientists scanned the brains of 28men and women as they listened to a variety of calls and cries．After 100milliseconds two parts of the brain that respond to emotion lit up．Their response to a baby's cry was particularly strong．The response was seen in both men and women-even if they had no children．
Researcher Dr Christine Parsons said，"You might read that men should just notice a baby and step over it and not see it，but it's not true．There is a special processing in men and women，which makes sense from an evolutionary（演變的） view that both men and women would be responding to these cries．"The study was in people who were not parents，yet they are all responding at 100ms to these particular cries，so this might be a fundamental response present in all of us regardless of parental status．
Researcher Katie Young said it may take a bit longer for someone to recognize their own child's cries because they need to do more"fine-grained analysis"．The team had previously found that our reactions speed up when we hear a baby crying．Adults performed better on computer games when they heard the sound of a baby crying than after they heard recordings of adults crying．
5．A baby's cry is difficult to ignore because itD．
A．keeps on crying
B．cries harder than adults
C．causes people great pain
D．makes people feel strong emotions
6．The underlined word"trigger"in Paragraph 2probably means"C"
A．remove B．a(chǎn)void
C．cause D．Cure
7．What may Christine Parsons agree to？A
A．Almost everyone makes certain response to a baby's cries．
B．A crying baby makes no sense to people without children．
C．Men pay less attention to a crying baby than women．
D．Parents can hardly recognize their own babies'cry．
8．Computer games are mentioned in the text to showB．
A．Players'different reactions to a crying baby
B．Baby's crying contributes to quicker reactions
C．the influence of baby's and adult's crying on performance
D．It's hard to keep one's concentration with a crying baby nearby．
分析 本文主要講述了嬰兒的哭聲是人們不能忽視的，而且孩子的哭聲能引起大腦獨(dú)特的情感反應(yīng)．
解答 5．D 細(xì)節(jié)理解題．根據(jù)第一段最后一句"A baby's cry pulls at the heartstrings（扣人心弦） in a way while other cries don't，researchers found．"可知嬰兒的哭聲在某種程度上扣人心弦，回引起人們的強(qiáng)烈的情感共鳴，故答案為D項(xiàng)．
6．C 句意理解題．根據(jù)上段最后一句可知，本句意為"研究人員發(fā)現(xiàn)，孩子的哭聲能引起大腦獨(dú)特的情感反應(yīng)"，所以畫線單詞與C項(xiàng)意思接近．
7．A 細(xì)節(jié)理解題．根據(jù)第四段中"…that both men and women would be responding to these cries．"可判斷出，男性和女性都會對孩子的哭聲作出反應(yīng)，故答案為A項(xiàng)．
8．B 推理判斷題．根據(jù)最后一段中"…that our reactions speed up when we hear a baby crying．"可知，孩子的哭聲能提高我們的反應(yīng)速度，故答案為B項(xiàng)．
點(diǎn)評 本文是科教類閱讀理解．做這類題材閱讀理解時要求考生對文章通讀一遍，做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項(xiàng)選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據(jù)
