单选题Questions 1 to 5 are based on the following passage.Last year at airports across the world, 18% of flights were delayed, leaving millions of passen-gers stuck with a lot of time on their hands.Most of

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单选题 With increasing prosperity

单选题. Questions 20 to 22 are based on the recording you have just heard.5.

单选题. Questions 16 to 18 are based on the recording yon have just heard.1.

单选题. Questions 16 to 19 are based on the recording you have just heard.1.

单选题. Too much television can be detrimental for kids' development, even when they're not plopped directly in front of the screen. And your kids might be getting more exposure to such background TV than you think, a new study finds. The researchers found that the average American kid was exposed to 232.2 minutes of background television per day—when the TV was on, but the child was engaged in another activity. Younger children and African-America children were exposed to the most background television on average. "We were ready and willing to accept that the exposure would be high, but we were kind of shocked at how high it really was," says study author Matthew Lapierre, a doctoral candidate and lecturer at the University of Pennsylvania's Annenberg School for Communication. "The fact that kids are exposed to about four hours on average per day definitely knocked us back on our heels a bit." Previous research has found that exposure to background television is linked to lower attention spans, fewer and lower-quality parent-child interactions and reduced performance in cognitive tasks, the authors said in the study. The current findings came from data gathered in a nationally representative telephone survey of 1,454 American parents with at least one child between the ages of 8 months and 8 years. The parents were asked about how often their TV was on when no one was watching and whether their child had a TV in their bedroom. "For every minute of television to which children are directly exposed, there are an additional 3 minutes of indirect exposure, making background exposure a much greater proportion of time in a young child's day," the authors say in the study. What they found even more concerning was that kids under 2 and African-American children are exposed to 42% and 45% more background TV, respectively, than the average child. "It's particularly concerned because there is an evidence this exposure has negative consequences for development," says Lapierre. According to the authors, these high rates could be the result of parents not counting background TV as exposure or thinking their kids are too young to be affected by it. "This study should be a warning to parents and day-care providers to shut off the television when no one is watching, and certainly to consider the consequences of having a television in a child's bedroom no matter how young they may be," said Cynthia Stohl, the International Communication Association president and professor of communication at the University of California, Santa Barbara, in a statement. The researchers are hopeful their findings will further the understanding of how home media practices relate to background television exposure, so recommendations for reducing kids' exposure can be made.1. The word "detrimental" (Line 1, Para.1) is closest in meaning to ______.

单选题《复合题被拆开情况》 Organic agriculture is a relatively untapped resource for feeding the Earth’s population, especially in the face of climate change and other global challenges. That’s the conclusion I reach

单选题Questions 1 to 10 are based on the following passage.More than half of American adults____1____vitamin pills.Data from the National Health and Nutri-tion Examination Survey NHANES____2____a trend away

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单选题. Questions 9 to 11 are based on the passage you have just heard.1.

单选题《复合题被拆开情况》 Danielle Steel, the 71-year-old romance novelist is notoriously productive, having published 179 books at a rate of up to seven a year. But a passing reference in a recent profile by Glamou

单选题A Class ApartAHoused in a jumble of ancient buildings in the shadow of Westminster Abbey, Westminster School has been educating boys since it was founded in 1560 by Queen Elizabeth I to provide lesson

单选题14. The notice came around two in the afternoon ______ the meeting would be postponed.

单选题Questions 1 to 5 are based on the following passage.Latino youths need better education for Arizona to take full advantage of the possibilities their exploding population offers.Arizonas fast-gro

单选题. Most of us tend to think that attractive people are always at an advantage in life and enjoy far more opportunities than average-looking or unattractive people, especially when it comes to employment. But a new study suggests this perception is actually not the case for all jobs. Beautiful people are less likely to land menial jobs or positions that involve uninteresting work. The study published Tuesday in the Journal of Personality and Social Psychology finds being beautiful is a liability when it comes to seeking out less desirable positions, which is proof that attractive people don't get everything they want. The researchers found people interviewing and hiring for these jobs favor unattractive candidates because they perceived attractive candidates would be dissatisfied with the pay and the work. The findings are based on a series of experiments that involved more than 750 people. They included university students and hiring managers. The researchers showed the hiring managers profiles that included photos of potential candidates (one attractive and one not so much). The researchers asked the hiring managers a series of questions that were meant to assess their perceived attractiveness. They also asked the participants which candidate they were more likely to hire for the low-paying positions that included warehouse worker, customer service representative and housekeeper versus more appealing jobs such as manager, project director and an IT internship (实习生). The researchers found that the hiring managers' decisions were driven by their belief that the nice-looking candidates would be unhappy and unsatisfied with the menial jobs and maybe even less likely to do the work. The researchers were surprised by this, since previous research has shown that attractive people always have an edge with employment, such as a study in which researchers sent 1100 fake resumes to employers to fill advertised vacancies. They found 54 percent of attractive women were contacted while 47 percent of attractive men received calls, according to the Independent. On the other hand, only 7 percent of unattractive women and 26 percent of unattractive men were contacted by potential employers. The authors of the new study suggest their findings should be considered when it comes to creating policies about job discrimination. This conclusion is likely to be laughable to unattractive people who have landed jobs but didn't win the genetic lottery.1. What does the study in the Journal of Personality and Social Psychology find?______