【英语卷·2014届安徽省合肥市高三第二次教学质量检测】第二节：（2014·合肥第二次质检）完形填空 (共20小题；每小题1.5分，满分30分)
B4阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
A wave of recent research has pointed to the risks of over praising a child. And it seems that how to draw a line between too little praise and too much has become a high-pressure _36_act for parents.
Self-esteem (自尊) serves as a kind of tool to measure how much children feel valued and accepted by 37 . This sensitivity to others' 38 develops because of humans' need for social acceptance, which is considered to be 39 to survival. As early as age 8, children's self-esteem tends to rise and fall in response to feedbacks about 40 peers see them as likable or attractive. 41 , it can also be beneficial for kids to feel bad about themselves occasionally, if they behave in selfish, mean or hurtful ways that might 42 their ability to maintain relationships or hold a job in the future.
In the past, many parents and educators believed that high self-esteem 43 happiness and success, and kids could gain self-esteem simply by getting 44 and awards from their parents, teachers and people around. But recently researchers have found self-esteem doesn't _45 these
