题文
The amount of time children spend in institutional care（机构式照顾）may affect how their brains develop. That’s the conclusion of a new study carried out by researchers at the University of Wisconsin, Harvard Medical School and the University of Minnesota. The study is published in Child Development in the journal’s January/ February 2010 issue.
To learn how the lack of care and material needs that institutionalized children often experience affect brain development, the researchers looked at 132 8- and 9-year-olds. Some of them were adopted into U.S. homes after spending at least a year and three quarters of their lives in institutions in Asia, Latin America, Russia and Eastern Europe, and Africa. Others were adopted by the time they were 8 months old into U.S. homes from foster care（寄养）in Asia and Latin America; most of these children had spent no time in institutional care, while some had spent a month or two in institutions prior to foster placement. On average, the internationally adopted children had been living with their families for more than 6 years. These children were compared to a group of American children raised in their birth families.
Children adopted early from foster care didn't differ from children raised in their birth families in the United States. Children adopted from institutional care performed worse than those raised in families on tests measuring visual memory and attention, learning visual information, and impulse （冲动）control. Yet these children performed at developmentally appropriate levels on tests involving sequencing and planning.
The take-home message: Children make tremendous advances in cognitive（认知的） functioning once they reach their adoptive families, but the early impact on their brains' development is difficult to change completely.
"We identified basic learning processes that are affected by early institutionalization," notes Seth Pollak, professor of psychology and pediatrics at the University of Wisconsin, who was the study's lead author. "Policies that speed the time in which children can be removed from institutionalized care so they can develop within family contexts should be implemented to decrease the likelihood of learning problems later in children's lives."
67．The passage is mainly written to___________.
A．compare two childcare systems B．criticize the institutional childcare
C．present a new research finding D．introduce the basic learning process
68．Children have their brain development affected in institutional care because__________.
A．they suffer form poor living conditions
B．they spend too much time learning
C．they don’t have freedom staying there
D．they are neither physically nor mentally satisfied
69．Compared with home-raised children, institutionalized children didn’t do as well in tasks like__________.
A．thinking in pictures and self-control
B．working in teams and self-expression
C．putting things in order and self-defense
D．adapting to the environment and self-panning.
70．It can be concluded form the passage that__________.
A．the United States is a good place for children’s all-round development
B．a perfect family is beneficial to children’s all-round development
C．children in institutional care can hardly achieve anything great
D．nothing has been done to help children in institutional care 题型：未知难度：其他题型
答案
67---70 CDAB
解析
略考点
据考高分专家说，试题“The amount of time c.....”主要考查你对 [人生感悟类阅读 ]考点的理解。人生感悟类阅读
人生感悟类阅读的概念：
生活感悟类的文章就是指能给人心灵以启迪，使人从中受到教育的文章。这类文章的体裁可以是记叙文，如生活中一些感人故事或情感故事，有点类似心灵鸡汤一样的短文。
生活感悟类阅读解题指导：
一、文章特点：
生活感悟类的文章就是指能给人心灵以启迪，使人从中受到教育的文章。这类文章的体裁可以是记叙文，如生活中一些感人故事或情感故事，有点类似心灵鸡汤一样的短文。有时故事的结尾会有一句“点睛之笔”，点出全文的中心思想，就像《伊索寓言》里的寓言一样。还可能是夹叙夹议的哲理散文或生活随笔。散文随笔通常会阐述一种朴素易懂，耳熟能详的人生道理或宝贵品质。文章的结构和议论文类似，一般是总分总或总分结构。每段首句或尾句为主题句（论点），其它句子围绕主题展开论述（论据），论证方法多种多样，或举例，或引用名言，或正反对照等。
二、解题技巧：
针对生活感悟类文章的特点，做这类文章的完形填空时，要特别注意以下几点：
1、重点理解全文的首句。如果是记叙文，找出when，where，who，what等基本要素。如果是散文随笔，充分理解文章的中心句—全文的主题。
2、阅读全文的结尾段或结尾句，有助于理解文章所阐述或蕴含的哲理、感悟或忠告等。
3、调动自己的背景知识和情感。这类文章不会讲大道理也不会涉及到一些很专业的知识技术领域，而是谈一些小事和简单的道理，所以如果读者能和作者产生感情上的共鸣，读者会更好地把握作者的意图态度，从而提高做题的准确度。因此，考生在平时要做一个有心人，即用心去感悟生活中发生的小事，思考人生的一些基本道理，多阅读一些短小精悍的美文，多写写自己的心情故事和对生活学习的感悟。只有平时多用心，做题时才能调动自己的背景知识和情感。
