Grown-ups also have a sense of object permanence. We know that if we put a box in a room and lock the door, the box will still be there when we come back. But does a baby realize that a ball that rolls under a chair does not disappear and go to never-never land?

　　Experiments done by Bower suggest that babies develop a sense of object permanence when they are about 18 weeks old. In his experiments, Bower used a toy train that went behind a screen. When 16-week-old and 22-week-old babies watched the toy train disappear behind the left side of the screen, they looked to the right, expecting it to reappear. If the experimenter took the train off the table and lifted the screen, all the babies seemed surprised not to see the train. This seems to show that all the babies had a sense of object permanence. But the second part of the experiment showed that this was not really the case. The researcher substituted(替换)a ball for the train when it went behind the screen. The 22-week-old babies seemed surprised and looked back to the left side for the train. But the 16-week-old babies did not seem to notice the switch(更换). Thus, the 16-week-old babies seemed to have a sense of “something permanence,” while the 22-week-old babies had a sense of object permanence related to a particular object. 47. The passage is mainly about ________.

　　A. babies’ sense of sight

　　B. effects of experiments on babies

　　C. babies’ understanding of objects

【2017届高三英语一轮基础阅读理解训练（4）及答案】相关文章：

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (55)

★ 安徽省淮南市2014高考英语一轮单项选择及文章训练（15）及答案

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（5）附答案

★ 四川省2016届高考英语一轮复习课时作业（44） Module 2 The Renaissance 外研版选修8

★ 2017高考四川省广安市英语阅读理解一轮系列训练：29（含解析）

★ 2017高考四川省广安市英语阅读理解一轮系列训练：28（含解析）

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（4）附答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (6)

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（20）附答案

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（20）附答案