7．For those who study the development of intelligence（智力）in the animal world，self-awareness is an important measurement．An animal that is aware（意識）of itself has a high level of intelligence．
Awareness can be tested by studying whether the animal recognizes itself in the mirror，that is，its own reflected image（反射出的影像）．Many animals fail this exercise bitterly，paying evry little attention to the reflected image．Only humans，and some intelligent animals like apes and dolphins，have shown to recognize that the image in the mirror is of themselves．
Now another animal has joined the club．In the Proceedings of the National Academy of Sciences，researchers report that an Asian elephant has passed the mirror self-reflection test．
"We thought that elephants were the next important animal，"said Dinana Reiss of the Wildlife Conservation Society，an author of the study with Joshua M．Plotnik and Fans B．M．de Waal of Emory University．With their large brains，Reiss said，elephants"seemed like cousins to apes and dolphins．"
The researchers tested Happy，Maxine and Patty，three elephants at the Bronx Zoo．They put an 8-foot-square mirror on a wall of the animals'play area （out of the sight of zoo visitors） and recorded what happened with cameras，including one built in the mirror．
The elephants used their long noses to find what was behind it，and to examine parts of their bodies．
Of the three，Happy then passed the test，in which a clear mark was painted on one side of her face．She could tell the mark was there by looking in the mirror，and she used the mirror to touch the mark with her long nose．
Diana Reiss said，"We knew elephants were intelligent，but now we can talk about their intelligence in a better way．"
45．What can mirror tests tell us about animals？B
A．Whether they have large brains．
B．Whether they have self-awareness．
C．Whether they enjoy outdoor exercises．
D．Whether they enjoy playing with mirrors．
46．Why does the author mention apes and dolphins in the text？D
A．They are most familiar to readers．
B．They are big favorites with zoo visitors．
C．They are included in the study by Reiss．
D．They are already known to be intelligent．
47．What made Happy different from Maxine and Patty？B
A．She used her nose to search behind the mirror．
B．She recognized her own image in the mirror．
C．She painted a mark on her own face．
D．She found the hidden camera．
分析 本文主要講述了人類通過研究動物是否能夠認(rèn)出鏡中的自己，即自己反射出的影像來測試意識．許多動物在這項測試中慘敗，它們幾乎沒注意過那反射出的影像．事實顯示，只有人類和一些高智商的動物，如猿和海豚，能夠辨認(rèn)出鏡中的影像就是自己．
解答 45：B細(xì)節(jié)題．由第二段第一句"Awareness can be tested by studying whether the animal recognizes itself in the mirror"可以通過研究動物是否能夠認(rèn)出鏡中的自己，既是自己反射出的影像來測試意識． 可知正確答案為B．
46：D推斷題．由第一段第一句"For those who study the development of intelligence in the animal world，self-awareness is an important measurement．"可知，自我意識是衡量智力的一個重要標(biāo)準(zhǔn)．而第二段"Only humans and some intelligent animals like apes and dolphins，have been shown to recognize that the image in the mirror is of themselves．"告訴我們只有大猩猩和海豚能像人類一樣通過鏡像測試，所以他們是有較高智力的，故正確答案為D．
47：B細(xì)節(jié)題．由第七段第一句"Of the three，Happy then passed the test，in which a clear mark was painted on one side of her face．She could tell the mark was there by looking in the mirror，and she used the mirror to touch the mark with her long nose．"可知 Happy 通過鏡子看到自己臉上的圖畫，而 Maxine 和 Patty 沒有，故正確答案為B．
點評 本文是一個科技類閱讀理解，題目涉及多道細(xì)節(jié)理解題，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)．
