正确答案: D

enrich

题目：Reading authentic writings is one ofthe best ways to_________our English vocabulary.

解析：本题考查动词辨析。spread“传播，伸展”，extend“延伸，扩大，推广”，organize“组织，安排，筹划”，enrich“使充实，使富足，使丰富”。句意为“阅读真实著述是丰富我们词汇量最好的方法之一”。故本题选D。

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学习资料的答案和解析：

[单选题]Which ofthe following shows how the fraction"7/9" reads in English?

Seven-ninths.

解析：本题考查英语中分数的读法。分数的表达方式：分子用基数词，分母用序数词。当分子大于1时，分母序数词用复数形式。故本题选D。

[单选题]7-11岁儿童认知大体处于( )阶段。

具体运算

解析：具体运算阶段为7-11岁，认知特点有这个阶段的标志是守恒观念的形成（守恒性）；思维运算必须有具体的事物支持，可以进行简单抽象思维；理解原则和规则，但只能刻板遵守规则，不敢改变；思维具有可逆性（儿童思维发展的最重要特征）。故选择C。A选项，感知运动阶段为0-2岁，仅靠感觉和动作适应外部环境，应付外界事物。认知特点有通过探索感知与运动之间的关系来获得动作经验：低级的行为图式；获得了客体的永恒性（9～12个月）。B选项，前运算阶段为2-7岁，认知特点有"万物有灵论"；一切以自我为中心；思维具有不可逆性、刻板性；没有守恒概念；作出判断时只能运用一个标准或维度。D选项，形式运算阶段为11-16岁认知特点为能够根据逻辑推理、归纳或演绎方式来解决问题：能够理解符号意义、隐喻和直喻，能作一定的概括；思维具有可逆性、补偿性和灵活性。

[单选题] British psychologists have found evidence of a link between excessive Internet use and depression, a research has shown. Leeds University researchers, writing in the Psychopathology journal, said a small proportion of Internet users were classed as Intemet addicts and that people in this group were more likely to be depressed than non-addicted users. The article on the relationship between excessive Internet use and depression, a questionnaire-based study of 1,319 young people and adults, used data gathered from respondents to links placed on UK-based social networking sites. The respondents answered questions about how much time they spent on the Internet and what they used it for; they also completed the Beck Depression, In,ventory--a series of questions designed to measure the severity of depression. The six-page report, by the university's Institute of Psychological Sciences, said 18 of the people who completed the questionnaire were Internet addicts. "Our research indicates that excessive Jnternet use is associated with depression, but what we don't know is which comes first-are depressed people drawn to the Intemet or does the Intemet cause depression?" the article's lead author, Dr. Catriona Morrison, said."What is clear is that, for a small part of people, excessive use of the Internet could be a warning signal for depressive tendencies." The age range of all respondents was between 16 and 51 years, with a mean age of 21.24. The mean age of the 18 Internet addicts,13 of whom were male and five female, was 18.3 years. By comparing the scale of depression within this group to that within a group of 18 non-addicted Intemet users, researchers found the Internet addicts had a higher incidence of moderate to severe depression than non-addicts. They also discovered that addicts spent proportionately more time browsing sexually pleasing websites, online gaming sites and online communities. "This study reinforces the public speculation that over-engaging in websites that serve to replace normal social function might be linked to psychological disorders like depression and addiction," Morrison said."We now need to consider the wider societal implications of this relationship and establish clearly the effects of excessive Internet use on mental health."

Internet addicts are people who ________.

use the Internet more than enough

解析：1.细节题。根据文章第一、二段可知，Intemet addicts即为第一段中的“excessive Internet user”，意为过度使用网络的人。故答案为A。 2.细节题。文章第三段提到“…a questionnaire-based study of 1，319 young people and adults，used data gathered from respondents…”由此可知，研究数据来自问卷调查。故答案选A。 3.细节题。根据文章倒数第三段首句“Our research indicates that excessive Intemet use is associated with depression，but what we don't know is which comes first”可知，研究发现沉迷网络和抑郁症有关，即沉迷网络的人有抑郁症的倾向。故选C。 4.细节题。文章最后一段第一句明确指出“This study reinforces the public speculation that over-engaging in websites that serve to replace normal social function”，故答案为D。 5.细节题。文章最后一段第一句明确指出“This study reinforces the public speculation…”据此可知Dr. Catriona Morrison认为公众的推测是正确的。故选D。