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题型:阅读理解-阅读单选 难度:0.65 引用次数:38 题号:22128703

Handing your baby a phone or a tablet to play with may seem like a harmless solution when you’re busy, but it could actually affect their development, a new study has found.

Having anywhere from one to four hours of screen time per day at age l is linked with higher risks of developmental delays in communication skills, fine motor skills, personal and social skills,and problem-solving skills by age 2, according to a study of 7,097 children published in the journal JAMA Pediatrics. The study measured how many hours children used screens per day at age 1 and how they performed in these developmental domains (领域) at ages 2 and 4. Both measures were according to the mothers’ self-reports.

By age 2, those who had had up to four hours of screen time per day were up to 3 times more likely to experience developmental delays in communication and problem-solving skills. Those who had spent four or more hours with screens were 4.78 times more likely to have underdeveloped communication skills, 1.74 times more likely to have poor performances in fine motor skills and two times more likely to have underdeveloped personal and social skills by age2. By age 4, risk remained only in the communication and problem-solving categories.

“One of the areas that is relatively understudied in the whole screen time literature is looking at the impacts of screen exposure on very young kids, especially when screens are introduced to babies,” said Dr. John Hutton, an associate professor of general and community pediatrics (儿科) at Cincinnati Children’s Hospital Medical Center. “It’s definitely a global concern, and I think the findings should really be applied to other countries as well.”

“Technology use can take time away from interpersonal relationships that develop social skills since real people are more multidimensional than characters on a screen.” Hutton added. Looking at people’s faces is when our brains turn on to figure out how to interact with them.

1. What does the new study focus on?
A.A baby’s mental health.B.Children’s developmental skills.
C.A kid’s academic performance.D.Students’ creative abilities.
2. What is the main research method used in the study?
A.Analyzing data.B.Giving examples.
C.Reviewing literature.D.Doing experiments.
3. What does Dr. John Hutton suggest?
A.The impact of screen exposure should be studied.
B.The findings should be applied to certain countries.
C.Global attention should be paid to kids’ screen hours.
D.Screens should be introduced to more and more babies.
4. What can be a suitable title for the text?
A.What Faults Can Be Found with Screens
B.What Difficulties A Young Kid Will Face
C.How Screens Change Academic Performance
D.How Screen Time Influences Kids’ Development
【知识点】 科普知识 说明文

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【推荐1】Can you think of something that has been around for thousands of years and is still used in different cultures around the world? Something that fits this description is makeup.

Even though makeup might seem new, it was an important part of daily life in ancient Egypt thousands of years ago. At that time, both men and women utilized things like eyeshadow, eyeliner and lipstick nearly every day.

For a better make-up result, a wealthier Egyptian woman would first clear her dead skin using salts from the Dead Sea. Then, she would use a milk-and-honey face mask to wet her skin. Taking milk baths was also a way to make the beauty routine (日常) a more luxurious experience. After all of this, the makeup could then be applied.

But people in ancient Egypt didn’t just use makeup to look more attractive. They also used it for rituals (宗教仪式). For example, a black powder called kohl was used around the eyes to protect them from the bright desert sun. In fact, the Egyptian word for “makeup palette” comes from a word that means “to protect”.

These makeup palettes (调色板) were used to mix colored powders with animal fat or vegetable oils to make the different products. They usually had symbols (符号) of animals or goddesses on them. It was believed that the powers of these animals would be put into the makeup when it was mixed together, giving the wearer unusual talents.

Interestingly enough, makeup was also an important part of ancient Egyptian burial rituals. From life into death and beyond, makeup helped to shape ancient Egyptian culture. Even though makeup is still used in modern times, it is interesting to know that it is linked to the ancient world.

1. What does the underlined word “utilized” in Paragraph 2 mean?
A.bought.B.used.
C.removed.D.changed.
2. What would wealthy ancient Egyptian women do before putting on their makeup?
A.Go swimming in the Dead Sea.B.Drink milk to wet their skin.
C.Remove the dead skin with honey.D.Follow a beauty routine.
3. What did ancient Egyptians think about makeup palettes?
A.They helped deliver messages from goddesses.
B.They protected them from bad luck.
C.They gave people special abilities.
D.They brought the dead back to life.
4. What is the best title for the text?
A.Makeup in Ancient EgyptB.Changes in Ancient Egyptian Culture
C.The Rituals in Ancient EgyptD.The Makeup Palettes in Ancient Egypt
2021-12-10更新 | 101次组卷
阅读理解-阅读单选(约360词) | 适中 (0.65)
文章大意:这是一篇说明文。1907年3月7日,英国统计学家弗朗西斯·高尔顿发表的一篇论文阐述了后来被称为“群体智慧”的效应。他进行的估计实验表明,在某些情况下,大量独立估计的平均值可能相当准确。但是,由华金·纳瓦加斯领导的一项新研究发现,当人群被进一步分成更小的群体并允许进行讨论时,这些群体的平均值比同样数量的独立个体的平均值更准确。文章对此进行了详细介绍。

【推荐2】On March 7, 1907, the English statistician Francis Galton published a paper which illustrated what has come to be known as the “wisdom of crowds” effect. The experiment of estimation he conducted showed that in some cases, the average of a large number of independent estimates could be quite accurate.

This effect capitalizes on the fact that when people make errors, those errors aren’t always the same. Some people will tend to overestimate, and some to underestimate. When enough of these errors are averaged together, they cancel each other out, resulting in a more accurate estimate. If people are similar and tend to make the same errors, then their errors won’t cancel each other out. In more technical terms, the wisdom of crowds requires that people’s estimates be independent. If for whatever reasons, people’s errors become correlated or dependent, the accuracy of the estimate will go down.

But a new study led by Joaquin Navajas offered an interesting twist (转折) on this classic phenomenon. The key finding of the study was that when crowds were further divided into smaller groups that were allowed to have a discussion, the averages from these groups were more accurate than those from an equal number of independent individuals. For instance, the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.

In a follow-up study with 100 university students, the researchers tried to get a better sense of what the group members actually did in their discussion. Did they tend to go with those most confident about their estimates? Did they follow those least willing to change their minds? This happened some of the time, but it wasn’t the dominant response. Most frequently, the groups reported that they “shared arguments and reasoned together”. Somehow, these arguments and reasoning resulted in a global reduction in error. Although the studies led by Navajas have limitations and many questions remain, the potential implications for group discussion and decision-making are enormous.

1. What is paragraph 2 of the text mainly about?
A.The methods of estimation.B.The underlying logic of the effect.
C.The causes of people’s errors.D.The design of Galton’s experiment.
2. Navajas’ study found that the average accuracy could increase even if ________.
A.the crowds were relatively smallB.there were occasional underestimates
C.individuals did not communicateD.estimates were not fully independent
3. What is the author’s attitude toward Navajas’ studies?
A.Unclear.B.Dismissive.C.Doubtful.D.Approving.
2023-09-08更新 | 73次组卷
阅读理解-阅读单选(约430词) | 适中 (0.65)
文章大意:这是一篇说明文。本文主要介绍了快闪族的形成以及其描述了其发展情况。
【推荐3】Don’t be surprised if you see a group of people dancing or shouting on the square. They are a flash mob (快闪族). Confused by their name? Actually, a flash mob, organized with the help of the Internet or other digital communications networks, is a group of people who gather suddenly in a public place, do something unusual for a period of time, such as exchanging books, coming together to look at the sky, waving their hands and shouting something at the top of their lungs for 30 seconds, and then quickly disappear before the police can arrive.

Bill Wasik, senior editor of Harper’s Magazine, organized the first flash mob in Manhattan in May 2003 and the first successful flash mob gathered on June 3, 2003 at Macy’s department store involving 100 people gathering on Macy’s Department Store. Following this, about 200 people flooded the lobby of the Hyatt hotel, applauding in one voice for fifteen seconds, and next participants pretending to be tourists on a trip invaded a shoe shop in Soho. A later mob saw hundreds of people in Central Park making bird noises.

Wasik claimed that he created flash mobs as a social experiment designed to tease hipsters (追逐时尚的人), and highlight the cultural atmosphere of agreement and of being part of “the next big thing”. Many web logs, chat rooms and Web groups are devoted to the craze. Though flash mobs were originally regarded as useless, the concept has already developed for the benefit of political and social events. Flash mobbing takes advantage of the efficiency of communicating information on Websites and by email, and protesters can similarly use the “on and off” concept to be involved in political events. Such flash mob gatherings can sometimes shock or frighten people who are not aware of what is taking place. They also have enormous economic potential, such as using flash mobs to advertise a product.

The flash mob is now becoming more and more popular. People use it to do many things. For example, in 2009, hundreds of Michael Jackson’s fans took part in a flash mob to remember him, gathering outside the railway station in Liverpool, singing and dancing Michael’s famous song, beat it together. In another example, some people took part in a flash mob to warn people against negative words. Flash mobs give people from all walks of life an opportunity to come together to create a memory.

1. A flash mob is most likely to        .
A.give out leaflets of a brand bicycle to the passers-by
B.gather in public places performing and leave quickly
C.plan to go mountaineering on the first day of Horse Year
D.sit for days in front of the city hall for higher wages
2. According to the passage, what contribute(s) most to the popularity of the flash mob?
A.Harper’s MagazineB.the government
C.political eventsD.digital networks
3. The purpose of the writing is        .
A.to amuse and interestB.to argue and advise
C.to describe and introduceD.to question and comment
2016-11-26更新 | 115次组卷
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