The happier you are, the better, right? Not necessarily. Studies show that there is a darker side to feeling good and that the【C1】______of happiness can sometimes make you less happy. Too much cheerfulness can make you deceivable, less successful—and thats only the tip of the iceberg. Happiness does have【C2】______. It can protect us from stroke and from the common cold, makes us more【C3】______to pain and even【C4】______our lives. Yet, June Gruber, a psychologist warns that its important to experience positive moods in moderation. She compares happiness to food:【C5】______necessary and beneficial, too much food can cause problems;【C6】______, happiness can lead to bad outcomes. 'Research indicates that very high levels of positive feelings【C7】______risk-taking behaviors, excess alcohol and drug consumption, overeating, and may lead us to【C8】______threats,' she says. How else can excessive joy, or having lots of positive emotions and a relative absence of【C9】______ones, hurt you? First, it may【C10】______your career prospects. Psychologist Edward Diener, known for his happiness research, and his colleagues analyzed a variety of studies, and discovered that those who early in their lives reported the highest life【C11】______years later reported lower income than those who felt slightly less【C12】______when young. Whats more, they【C13】______school earlier. Included in the studies was one【C14】______a group of American college freshmen who in 1976 claimed to be very cheerful. Surveyed again when they were in their late 30s, they earned, on average, almost $3,500 a year less than their slightly less cheerful【C15】______. Why? Diener suggests that people who dont experience much sadness or anxiety are【C16】______dissatisfied with their jobs and therefore feel less pressure to get more education or change careers. Psychologists point out that emotions are【C17】______: They make us change behavior. to help us【C18】______. Anger prepares us to fight; fear helps us flee. But what about sadness? Studies show that when we are sad, we think in a more systematic manner. Sad people are attentive【C19】______details and externally oriented, while happy people【C20】______make snap judgments that may reflect racial or sex stereotyping.
【C1】
A．absence
B．pursuit
C．claim
D．illusion

未分类题Remember books? They were those pieces of paper with words printed on them【C1】______in between two, sometimes,【C2】______covers. People bought them, and people borrowed them, but,【C3】______people used to read them. And then came screens. Six years into the【C4】______rise of mobile, half of American adults own a smartphone; over a third owns a tablet. Now, Im joking about the end of books, but its easy and tempting to【C5】______that screens will continue their【C6】______on words and paper-bound books will be at the【C7】______of vanishing. But if you take a hard look at the data, its not the end of print. Not by a long shot. 【C8】______years, there hasnt been a more【C9】______technology for capturing the hopes and the fears of new parents than the tablet. Touchscreens are so easy to【C10】______that babies can use them and learn at younger ages than we thought possible—or babies can use them and use them and use them and lose out on other skills. We just dont know what this does【C11】______young brains. All we know is were【C12】______a generation that sometimes finds magazines more【C13】______than iPads. Parents, of course, cant not know. Or, if they really cant, then they dont want to take any【C14】______. And thats why its not at all【C15】______that the vast, vast【C16】______of parents prefer reading printed books to their young children. Pew Research found that 94 percent of parents think its important to read print books to their children. Print【C17】______isnt going away soon.【C18】______more people prefer e-readers, some would still rather read print. Books will become 'luxuries'. But, of course, the real test will come in the next few years when we see what kids who have been using tablets since before they could walk prefer to read. Print is in a long, slow【C19】______that feels like a death spiral, but isnt quite so. For now, at least, the end of print is a long way off, even if kids these days cant【C20】______how to turn the page.【C1】A．sealedB．containedC．packedD．installed

未分类题【C3】A．under no circumstanceB．in additionC．as a resultD．in any case

未分类题【C13】A．blamed onB．dropped out ofC．were fond ofD．were accustomed to

未分类题【C15】A．in terms ofB．in spite ofC．in honor ofD．on account of

判断题在教育科研当中，基础研究与应用研究有时很难区分，因此他们之间的区别只具有相对意义，而不是绝对的划分标准。()

未分类题【C11】A．To be honestB．In responseC．After thatD．In accordance

未分类题【C6】

判断题在任何情况下，归并排序都比直接插入排序快。()

单项选择题购并日需要编制合并()。

单项选择题对于内部交易所形成的固定资产，在到期清理期间进行抵销处理时，只需要抵销的内容是()。

判断题链表中的表头结点仅起到标识的作用。()

未分类题As Valentines Day approaches, many single people begin to feel a little sorry for themselves. On a day【C1】______by couples, this can lead to feelings of【C2】______and loneliness, say researchers.【C3】______, dont worry—they say it could【C4】______be good for you. 'On the【C5】______of everyday life, it is understandable how something as personally【C6】______as loneliness could be regarded as a plague on human existence,' John Cacioppoat and his fellow researchers at the University of Chicago write in the journal Cognition & Emotion. 'Research【C7】______the past decade suggests a very different view of loneliness than suggested by personal experience, one in which loneliness【C8】______a variety of adaptive functions in【C9】______habitats.' 'Although it may feel like loneliness has no redeeming【C10】______, it promotes behavior. change to increase the likelihood of the survival of ones genes. The pain of loneliness served to【C11】______us to renew the connections we needed to ensure survival and to promote social trust, co-hesiveness, and collective action.' However, there was also bad news—researchers found the lonely are viewed more negatively in terms of their psychosocial functioning and attractiveness. 'In a social environment non-lonely people form. a negative impression【C12】______lonely people, which then affects their behavior. and【C13】______the lonely individuals perceived isolated existence,' the researchers wrote. '【C14】______, individuals rated opposite-gender partners who they expected to be lonely as less sociable, and【C15】______towards them in a less sociable【C16】______than they did toward partners they expected not to be-lonely.' The team even say loneliness could be behind many sports fans decision to【C17】______their team. 'The emergence of a collective connectedness factor underlying loneliness, therefore, suggests that we may have evolved the capacity for and motivation to form. relationships not only with other individuals but also with groups (e.g., a Chicago Cubs or Boston Red Sox fan), with the【C18】______being the promotion of co-operation in【C19】______conditions (e.g., competition, warfare). The identification with and investments in the group, in turn, may increase the likelihood of the continuity of the group, its members, and their individual genetic【C20】______.'【C1】A．arrangedB．controlledC．dominatedD．saved

判断题家长工作不仅包括幼儿园对幼儿家庭教育的各种输入，也包括幼儿家庭对幼儿园教育的各种投入。这是双向服务的过程，因而其内容也包括引导家长参与到幼儿园的教育中。()

未分类题Just seven years ago, the Texas Legislature prescribed that all high schoolers must pass two math courses and geometry to graduate. This summer, the state reversed course, easing its【C1】______math, science, and social-studies requirements to【C2】______class time for job training. Texas legislators want to create a more【C3】______system that helps students who arent headed to four-year colleges enter the workforce. But that【C4】______carries some risks.【C5】______its true that not all students will go on to college, pulling back on college preparatory coursework has to be【C6】______carefully in a state like Texas, with its hundreds of thousands of low-income and【C7】______students. Theyre the students who would benefit from college the most. New laws in Texas, as well as in Florida, de-emphasize the math class required for【C8】______to four-year colleges. Knowledge of these subjects is considered an indicator of college readiness【C9】______the Common Core standards, which have been【C10】______by 45 states, including Florida. More than half of public-school students in both states are nonwhite and from low-income families. Its particularly【C11】______that these Hispanic and African-American students leave high school qualified to further their e-ducation—【C12】______they dont plan on doing so right away. A college【C13】______is the most important driver of social mobility. By 2020, 65 percent of all jobs will require some kind of postsecondary education according to surveys. 【C14】______speaking, Texass earlier college-prep course-work recommendations didnt fit reality.【C15】______the high bar, only about half of the states high school graduates immediately headed off to college of any kind. 'We wanted to give students and parents more flexibility, to not only be college-prepared—which I think were doing a pretty good job of—but perhaps to【C16】______that preparation to folks who may not be going to college,' Representative Jimmie Don Aycock, who【C17】______the Texas Houses Public Education Committee, says of the revision. The goal isnt to dumb down the curriculum, he says, but to let kids【C18】______a path that might not have been【C19】______to them before. The states educational system still rewards schools when students【C20】______college readiness.【C1】A．specialB．vitalC．strictD．absurd

单项选择题当总产量达到最大时( ) A.边际产量为正 B.边际产量为负 C.边际产量为零D.边际产量与平均产量相等