2013
高考英语二轮阅读理解精选（47）及答案 a (•全国卷，b) for those who study the development of intelligence (智力) in the animal world，selfawareness is an important measurement. an animal that is aware (意识) 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 very little attention to the reflected image. only humans，and some intelligent animals like apes and dolphins，have been shown to recognize that the image in the mirror is of themselves.
