单选题 I"m usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago. While any of these statements might be true, they are practically impossible to prove scientifically. Still, I was struck by a report which concluded that today"s children are significantly more anxious than children in the 1950s. In fact, the analysis showed, normal children ages 9 to 17 exhibit a higher level of anxiety today than children who were treated for mental illness 50 years ago.
Why are America"s kids so stressed? The report cites two main causes: increasing physical isolation-brought on by high divorce rates and less involvement in community, among other things— and a growing perception that the world is a more dangerous place.
Given that we can"t turn the clock back, adults can still do plenty to help the next generation cope.
At the top of the list is nurturing (培育) a better appreciation of the limits of individualism No child is an island. Strengthening social ties helps build communities and protect individuals against stress.
To help kids build stronger connections with others, you can pull the plug on TVs and computers. Your family will thank you later. They will have more time for face-to-face relationships, and they will get more sleep.
Limit the amount of virtual (虚拟的) violence your children are exposed to. It"s not just video games and movies; children see a lot of murder and crime on the local news.
Keep your expectations for your children reasonable. Many highly successful people never attended Harvard or Yale.
Make exercise part of your daily routine. It will help you cope with your own anxieties and provide a good model for your kids. Sometimes anxiety is unavoidable But it doesn"t have to ruin your life.

单选题 The author thinks that the conclusions of any research about people"s state of mind are ______.

【正确答案】 D

【答案解析】[解析] 推理题。题干意为“作者认为，任何研究所得出得关于人们心态的结论都是”。根据题干 the conclusions of any research about people"s state of mind 定位至第一、二句中提到，作者对这些研究感到skeptical(持怀疑态度的)，并且认为这类研究缺乏科学依据。D选项(质疑的)符合题意，故D为正确答案。A项意为“吃惊的”，B项意为“迷惑的”，C项意为“不合逻辑的”，均不符合题意。

单选题 What does the author mean when he says, "we can"t turn the clock back" (Line 1, Para.3)? ______

【正确答案】 B

【答案解析】[解析] 释义题。题干意为：“作者说‘我们不能让时光倒流’是什么意思?”该题可用代入法将选项一一代入原文确定符合原文含义的选项。A项意为“使变化的步伐放慢是不可能的”，B项意为“孩子们所面对的社会现实是无法改变的”，C项意为“从过去学习的教训不应该被遗忘”，D项意为“将过去遗忘是不可能的”。由此推知，B选项符合原文语境逻辑和全文意思，故B为正确答案。

单选题 According to an analysis, compared with normal children today, children treated as mentally ill 50 years ago ______.

【正确答案】 C

【答案解析】[解析] 细节题。题干意为“一项分析显示，相比于当今的孩子，50年前被认为患有精神疾病的孩子”。根据题干中children treated as mentally ill 50 years ago定位至第一段最后一句，该句提到，分析显示，今天9到17岁的孩子比50年前被认为患有精神疾病的孩子表现得更加紧张。C选项(可能承受较少的焦虑)符合题意，故c为正确答案。

单选题 The first and most important thing parents should do to help their children is ______.

【正确答案】 C

【答案解析】[解析] 细节题。题干意为“为帮助孩子，父母首先应该做的最重要的事情是”。根据题干the first and most important thing parents should do定位至第四段，段中提到，首要的是培养孩子认识到个人主义的局限性，加强社会联系会帮助孩子参加社会活动，保护他们免受社会压力的困扰。C选项(使孩子更多地融入社会)与其意思一致，故C为正确答案。