解析：细节理解题。根据第二段第二句“This is the first time that someone has shown that the brain grows differently in extremely intelligent children”可知A项的陈述正确；根据第三段第三句“The general pattern of maturation，they reported on Thursday in Nature，is that the cortex grows thicker as the child ages and then thins out.”可知B项的陈述正确；根据最后一段第一句话可知C项的陈述正确；根据第三段最后一句“The causes of the changes are unknown，because the imaging process cannot see down to the level of individual neurons.”可知D项的陈述不正确。

　　答案：D

　　12.Why did highly intelligent children reach a peak of thickness much later than average children？

　　A.Intelligent children have unusually big brains.

　　B.Intelligent children have different childhood experiences.

　　C.Intelligent children's brains are more likely to change.

　　D.Intelligent children's genes have more influence on the brain.

　　解析：细节理解题。根据第四段第三句“One explanation is that the brains of highly intelligent children are more changeable，swinging through a higher trajectory of conical thickening and thinning than occurs in average children.”可知C项正确。

　　答案：C

　　.任务型阅读/任务型读写

　　阅读下面短文，根据所读内容在表格中的空白处填入恰当的单词。

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