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 experiment 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.
【解题导语】 本文是一篇科普短文,大意是通过实验研究儿童是否知道物体是固体的,是否具有物体持久性的感觉,研究表明,16周到24周的婴儿都知道物体是有形的固体,然而第一项研究表明只有18周以上的婴儿才对某个特定的物体的认识具有持久性。
【2016高考英语一轮复习(福建泉州专用)北师大版必修一《Unit1》强化演练知能闯关】相关文章:
★ 四川省2016届高考英语一轮复习课时作业(41) Module 5 Ethnic Culture 外研版选修8
★ 2014届高考英语一轮复习课时作业(八)必修2Module 2《No Drugs》(外研版)
★ 2014届高考英语一轮复习课时作业(十七)必修3Module 5《Great People and Great Inventions of Ancient China》(外研版)
★ 2014届高考英语一轮复习课时作业(十六)必修3Module 4《Sandstorms in Asia》(外研版)
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修5 unit2《The United Kingdom》
★ 四川省2016届高考英语一轮复习课时作业(35) Module 5 Cloning 外研版选修6
★ 四川省2016届高考英语一轮复习课时作业(28) Module 4 Carnival 外研版必修5
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21