16．So you think you know your dog．But how well does your dog know you？She probably recognizes you when she sees you．But can a dog tell by simply looking at you whether you have a happy or an angry expression on your face？Researchers in Austria have taught pet dogs to know the difference．
Dogs are very mindful of sound．When dog owners shout or speak in a strong，unkind voice，dogs often act ashamed and quietly move away from the area．
Recently，researchers found that dogs can look at our faces，and tell the difference between a smile and a frown（皺眉）．The animals were able to recognize a look of praise from one of blame．
Researchers at the University of Veterinary Medicine，Vienna performed a series of experiments．They taught dogs to recognize facial expressions．They showed the dogs two pictures of either the upper or lower half of a person's face．On one picture，the person looked happy．The other appeared angry．
The dogs were then shown images of the eyes or mouths of people they had never seen before．They were also shown the left half of the faces used in training．
Corsin Muller led the study．"We were really speaking，do they realize that smiling eyes have the same meaning as a smiling mouth，or angry eyes have the same meaning as an angry mouth？And it turned out that they really did perform very well in these research experiments．"
Once the dogs learned to recognize which image was happy or angry，they could easily find the same expressions in pictures of any face．
Corsin Muller says future studies will try to show whether dogs can learn the meaning of facial expressions-for example，whether a frown shows that someone is angry．
In the experiments，researchers found the dogs were slower to link a reward，or prize，with recognition of the angry face．This suggested that dogs had an idea people with angry faces were best avoided．
29．What does the passage mainly tell us？D
A．How one can know his dog well．
B．How a dog can probably be well trained．
C．How a dog can tell one something．
D．whether dogs can recognize our facial expressions
30．Hearing its owner's strong，unkind voice，a dog is likely toC．
A．jump happily
B．a(chǎn)ct excitedly
C．escape quietly
D．shout loudly
31．A dog is able to recognize one'sD．
A．praise
B．blame
C．a(chǎn)nger
D．a(chǎn)ll of the above
32．What can we learn from the passage？B
A．Dogs are as clever as human beings．
B．Dogs can understand man's feelings．
C．Dogs can be trained to do everything．
D．Dogs can learn to make any angry face．
分析 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了一位科學(xué)家通過實(shí)驗(yàn)證明了狗能識別人的情緒的問題．
解答 29．D．主旨大意題．閱讀短文But can a dog tell by simply looking at you whether you have a happy or an angry expression on your face？Researchers in Austria have taught pet dogs to know the difference可知這篇短文主要講述了一位科學(xué)家通過實(shí)驗(yàn)證明了狗能識別人的情緒的問題．故選D．
30．C．細(xì)節(jié)理解題．根據(jù)第二段When dog owners shout or speak in a strong，unkind voice，dogs often act ashamed and quietly move away from the area可知聽到主人強(qiáng)烈而不友善的聲音，狗很可能會(huì)悄悄離開；故選C．
31．D．細(xì)節(jié)理解題．根據(jù)最后一段In the experiments，researchers found the dogs were slower to link a reward，or prize，with recognition of the angry face可知狗能認(rèn)出自己主人的表揚(yáng)，責(zé)備，憤怒的表情；故選D．
32．B．推理判斷題．根據(jù)最后一段In the experiments，researchers found the dogs were slower to link a reward，or prize，with recognition of the angry face可知狗能理解人的感情；故選B．
點(diǎn)評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí)，要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．
