It seems that there’s a good reason why dogs are always seen as man’s best friend. Scientists have found that dogs are the only animals that can read emotion(情感)in faces much like humans. The finding suggests that like an understanding friend, dogs can see if we are happy, sad, pleased or angry.
When humans look at a new face, their eyes usually look across the left, falling on the right hand side of the person’s face first. A possible reason for this is that the right side of the human face is better at expressing emotions.
Scientists have now shown that pet dogs also have “l(fā)eft gaze bias(左視偏好)”, but only when looking at human faces. No other animal has been known to do like this before. Dr. Kun Guo showed 17 dogs pictures of human, dog and monkey faces as well as something else with his team. The dogs’ eyes and heads show a strong left gaze bias when the animals see human faces. But this did not happen when they were shown other pictures, including those of dogs.
Guo suggests that over thousands of years living with humans, dogs may have developed the left gaze bias as a way to guess our emotions.
“Recent studies show that the right side of our faces can express emotions better than the left. If  true, then it makes sense for dogs and humans to see the right hand side of a face first.”
小題1:Why are dogs seen as man’s best friend according to the passage?
A．Because dogs are the closest animals to humans.
B．Because dogs can read the emotions in humans’ faces easily.
C．Because dogs can understand us better when we feel sad.
D．Because dogs are good at expressing emotions.
小題2:The dogs’ left gaze bias helps them _______.
A．get along well with humansB．express emotions quickly
C．have more understanding friendsD．remember more new faces
小題3:The passage mainly wants to tell us that _______.
A．dogs have been man’s best friends for thousands of years
B．humans have a “l(fā)eft gaze bias”
C．the “l(fā)eft gaze bias” works on all animals
D．dogs can read emotions the same as humans

小題1:B
小題2:A
小題3:C

試題分析：短文大意：當(dāng)有人看一張新的面孔，他們的眼睛通常從左看起，落在人臉的右側(cè)。原因可能是人的右臉善于表達情感�？茖W(xué)家已經(jīng)證明，寵物狗也有“左凝視偏差”。
小題1:細節(jié)理解題。根據(jù)第一段中Scientists have found that dogsare the only animals that can read the emotions in humans’ faces like humans可知該選B。
小題2:細節(jié)理解題。根據(jù)第四段Guo suggests that over thousands of years living with humans, dogs may have developed the left gaze bias as a way to guess our emotions.可知該選A。
小題3:細節(jié)理解題。根據(jù)第三段中The dogs’ eyes and heads show a strong left gaze bias when the animals see human faces.可知該選C。
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