5．The rise of mobile phones has been blamed for a number of social ills，but your smart phone may also be making you physically sick as well．Scientists have identified a condition called"cybersickness"，which they say is the digital version of motion sickness．The phenomenon，which affects up to 80percent of the population who own smart phones or tablets，leads to feelings of sickness and unsteadiness．It is caused by seeing fast motion on a screen，which covers anything from a car chase in a film to scrolling through web pages on your phone．
The more realistic the visual content appears to you，the higher your chances of getting cybersickness are．The condition was identified in a piece in the New York Times in which British and US experts said that it needed solving．Motion sickness leaves sufferers feeling ill because they feel movement in your muscles and your inner ear but do not see it．The mismatch in digital sickness is the opposite-you see movement on the screen but do not feel it．The effect is the same and the symptoms include a headache，wanting to throw up，confusion and the need to sit down．Often cybersickness shows itself in a subtle way and sufferers put it down to stress or eyestrain．
Steven Rauch，a professor of otolaryngology（耳鼻喉科學(xué)） at Harvard Medical School，said："Your sense of balance is different from other senses in that it has lots of inputs．When those inputs don't agree，that's when you feel dizziness and sickness．"
Some studies that have been carried out into cybersickness found that women are more susceptible than men，the New York Times reported．Those who have Type A'personalities-meaning they are confident and determined-are more likely to suffer from cybersickness as well．Among those who have reported experiencing the condition have been video gamers who spend hours playing fast paced games．Engineers at Oculus VR，the virtual headset manufacturer，have admitted that digital motion sickness is one of their biggest problems．
27．From the text，we know that cybersicknessC．
A．is completely equal to motion sickness
B．a(chǎn)ffects up to 80% of the population．
C．leads to people's feelings of sickness and unsteadiness
D．is caused by seeing fast moving objects around
28．What's the difference between motion sickness and digital sickness？A
A．Digital sickness means sufferers see movement but do not feel it．
B．Digital sickness means sufferers feel movement but do not see it．
C．Motion sickness means sufferers see movement but do not feel it．
D．Motion sickness means sufferers don't see or fel movement
29．What does the underlined word"susceptible"in the last paragraph mean？B
A．likely to accept B．likely to be affected
C．likely to suspect D．likely to be cured
30．This passage is most probablyD．
A．a(chǎn) science fiction B．a(chǎn) newspaper ad
C．a(chǎn) book review D．a(chǎn) science news report．
分析 隨著手機(jī)越來越普及，許多社會(huì)疾病也愈發(fā)常見．但是，智能手機(jī)或許也會(huì)引起身體不適．科學(xué)家們認(rèn)為，‘暈屏幕病'是電子版的暈動(dòng)�。�
解答 CABD
27．C 細(xì)節(jié)理解題．根據(jù)第一段倒數(shù)第二句"The phenomenon …leads to feelings of sickness and unsteadiness"可知C正確；從第二段"The mismatch in digital sickness is the opposite…"可知A不準(zhǔn)確；從"which affects up to 80 percent of the population who own smartphones or tablets"可知B不準(zhǔn)確；從"It is caused by seeing fast motion on a screen"可知D不準(zhǔn)確．
28．A 細(xì)節(jié)理解題．根據(jù)第二段"Motion sickness leaves sufferers feeling ill because they feel movement in your muscles and your inner ear but do not see it．The mismatch in digital sickness is the opposite-you see movement on the screen but do not feel it"可得出答案．
29．B 詞義猜測題．根據(jù)最后一段"..are more likely to suffer from cybersickness as well"可猜測出"susceptible"的意思接近于"be likely to suffer from"也就是"很容易感染"的意思，故選擇B．
30．D 推理判斷題．文章介紹一種由智能手機(jī)等電子設(shè)備使用所造成的一種病--"暈屏癥"，是一篇科技方面的報(bào)道，因此A．科幻小說；B．報(bào)紙廣告；C．書評均不符合文意．
點(diǎn)評 本文是科教類閱讀理解．做這類題材閱讀理解時(shí)要求考生對文章通讀一遍，做題時(shí)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)
