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题型:阅读理解-阅读单选 难度:0.65 引用次数:674 题号:7994629

Students perform less well in final exams if smartphones are allowed in class, for non-academic (非学业的) purposes in lectures, a new study in Educational Psychology finds. Students who don’t use smartphones themselves but attend lectures where their use is acceptable also do worse, suggesting that smartphone use damages the group learning environment.

Researchers from Rutgers University in the US performed an in-class experiment to test whether dividing attention between smartphones and the lecturer during the class affected students’ performance in within-lecture tests and a final exam. 118 students at Rutgers University took part in the experiment during one term of their course. Smartphones were not allowed in half of the lectures and allowed in the other half. When smartphones were allowed, students were asked to record whether they had used them for non-academic purposes during the lecture.

The study found that having a smartphone didn’t lower students’ scores in comprehension tests within lectures, but it did lower scores in the final exam by at least 5%, or half a grade. This finding shows for the first time that the main effect of divided attention in the classroom is on the length of time in keeping memory, with fewer things of a study task later remembered. In addition, when the use of smartphones was allowed in class, performance was also poorer for students who did not use them as well as for those who did.

The study’s lead author, Professor Arnold Glass, added: “These findings should alarm students and teachers that dividing attention is having a not obvious but harmful effect that is damaging their exam performance and final grade. To help manage the use of smartphones in the classroom, teachers should explain to students the alarming effect—not only for themselves, but for the whole class.”

This is the first-ever study in an actual classroom showing a relationship between losing attention from smartphones and exam performance. However, more researches are required to see how students are affected by using smartphones after school.

1. What is the purpose of paragraph 1?
A.To present the main findings of the experiment.
B.To explain how the experiment was carried out.
C.To give details about the result of the experiment.
D.To suggest what should be done for teachers and students.
2. We know from the experiment that having a smartphone in class ________.
A.had no bad effect if students do not use them
B.caused an average 5% drop in students’ scores
C.made it harder for students to keep things in mind
D.had a bad effect on students’ performance in all tests
3. What’s Professor Glass’ attitude towards using smartphones in class?
A.He was against it.
B.He was in favor of it.
C.He cared little about it.
D.He doubted the findings.
4. What is the research team likely to do next?
A.To find out ways to improve students’ memory.
B.To call on schools to ban smartphones completely.
C.To study the influence of using smartphones after class.
D.To do researches on focusing attention in actual classrooms.

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【推荐1】Most parents of kids under age 8 don't worry about how much time they spend watching TV or using other media, from computers to smart phones to tablets PCs, according to a new survey that found a child's use of media often reflects how much time parents spend in the similar way.
¨We generally found that media use is not a source of conflict in the home" for families with young children, Ellen Wartella, a researcher from Northwestem University, told USA Today. She led a survey of 2,326 parents who have children 8 and younger.It found that in 80 percent of families, children's media use was not a problem, with 55 percent “not too" or“ not at all" concerned about it. It also showed parents have more positive than negative feelings about how media consumption affects a child's learning and the development of creativity.The exception is video games, which are viewed more negatively than TV, computers or mobile devices.“Parents rated video games as more likely to have a negative effect on children's school performance, attention time, creativity, social skills, behavior and sleep than any other medium," the researchers said in a news conference about the survey.
¨The findings exposes a generational shift (转移) in parental attitudes about technology's role in young children's lives," said Wartella.“Today's parents grew up with technology as a central pact of their lives, so they think about it differently than earlier generations of parents, instead of a battle with kids on one side and parents on the other, the use of media and technology has become a family affair. "
The researchers identified three media environments created by parents: media-centric (39 percent of families) , media-moderate (45%)and media-light (16%). Children in media-centric families spend at least three hours more each day watching TV or using computers, video games and tablet PCs don't make parenting easier.And 88 percent of parents say they are most likely to turn to toys or activities to keep their children occupied.Slightly fewer turn to books (79%) and TV(78%).
The survey didn't look at how media affects children. That's a topic that the American Academy of Pediatrics has handled a number of times. The AAP says studies have found too much media use can lead to attention- problems, school difficulties, sleep and eating disorders and being fat. In addition, the Internet and cell phones can provide platforms for illegal and risky behaviors.¨By limiting screen time and offering educational media and non-electronic formats (格式)such as books, newspapers and board games, and watching television with their children, parents can help guide their children's media experience. Putting questionable content into context and teaching kids a 70 out advertising contributes to their media literacy (素养) ," it says.
The pediatricians' group says parents should have “screen-free zones" and TV should be turned off during dinner. At most, it recommends children and teens engage with entertainment media for no more than two hours a day and that should be high-quality content. It is important for kids to spend time on outdoor play, reading, hobbies and using their imaginations in free play.“ Kids under 2 should not use television and other entertainment media because their brains are developing quickly and they learn best from direct human interaction," the group says.
An article on screen time by t.he Mayo Clinic also notes problems linked t.o over screen time, including being fat, irregular sleep , behavioral problems , weak school performance , violence and less time for active and creative play.
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2. Most parents don't worry about kid's media use because        
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3. From the data of the survey, we learn       
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D.media-centric children spend more than three hours each day on media use
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5. Which of the following is a suggestion by the researchers?
A.Media use time for babies under 2 should be limited.
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Over the years, SIKU has stepped forward in its development. Recently, the elders saw that the platform could help address a familiar challenge: sharing knowledge with younger people who often have their noses in their phones. In 2019, SIKU relaunched as a full-fledged social network—a platform where members can post photos and notes about wildlife sightings, hunts and sea ice conditions. The app operates in multiple languages, such as Inuktitut, Innu and Greenlandic. Since early 2024, over 25,000 people from at least 120 communities have made more than 75,000 posts on SIKU.

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