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题型:阅读理解-阅读单选 难度:0.4 引用次数:71 题号:10283698

In 1992,Teen Talk Barbie was put on the market with the controversial voice fragment(碎片),"Math class is hard."While the toy's sale met with strong public reaction,this hidden assumption continues,spreading the belief that women do not boom in science,technology,engineering and mathematic(STEM)fields due to biological inadequacies in math talent.

However,in 2019 Jessica Cantlon at Carnegie Mellon University led a research team that thoroughly examined the brain development of young boys and girls and found no sex difference in brain function or math ability.

Cantlon and her team studied the biological sex differences in math ability of young children.Her team used functional MRI(核磁共振)to measure the brain activity in 104 young children(3-to-10-year-old;55 girls)while watching an educational video covering early math topics,like counting and addition.The researchers compared scans from the boys and girls to evaluate brain similarity.In addition,the team examined brain maturity by comparing the children's scans to those taken from a group of adults(63 adults;25 women)who watched the same math videos.

After many statistical comparisons,Cantlon and her team found no difference in the brain development of girls and boys.In addition,the researchers found no difference in how boys and girls processed math skills while watching the educational videos.Finally,boys' and girls' brain maturity were statistically alike when compared to either men or women in the adult group.

Cantlon said she thinks society and culture are likely directing girls and young women away from math and STEM fields."Typical socialization can make worse small differences between boys and girls that can snowball into how we treat them in science and math,"Cantlon said."We need to be aware of these origins to ensure we aren't the ones causing the sex unfairness."

However,this project is focused on early childhood development using a limited set of math tasks.Cantlon wants to continue this work using a broader scope(范围)of math skills,such as spatial processing and memory,and follow the children over many years.

1. What can we infer after Teen Talk Barbie was on sale?
A.Girls are born with poor math abilities.
B.Math is difficult for both boys and girls.
C.Boys perform no better than girls in math.
D.Math is harder than science and technology.
2. What is the third paragraph mainly about?
A.The result of Cantlon's study.
B.The purpose of Cantlon's job.
C.The method of Cantion's research.
D.The difficulty of Cantlon's work.
3. How will Cantlon further her research?
A.By using a larger variety of subjects.
B.By employing a wider range of math skills.
C.By raising the difficulty of the math tasks.
D.By expanding the number of the children.
4. In which part of a magazine will the text most probably appear?
A.Business.B.Sports&Health.
C.Entertainment.D.Popular science.

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The idea that kindness can boost happiness is hardly new. Studies have shown that prosocial behavior — basically, voluntarily helping others — can help lower people’s daily stress levels, and that simple acts of connection, like texting a friend, mean more than many of us realize.     1    

“I have found that kindness can be a really hard sell,” said Tara Cousineau, a clinical psychologist, “People desire kindness yet often feel troubled by the thought of being kind.”     2     They may question whether their gesture or gift will be misinterpreted, or whether it will make the recipient feel pressured to pay it back.

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【推荐2】A workday filled with a string of mentally demanding tasks can leave you feeling burned out. After long hours of mentally tracking one thought after another, you're probably more likely to choose a relaxing evening of streaming TV shows than to tackle a tough task on your to-do list or to make time for a creative pursuit.

For some time, researchers have suspected that long periods of mental effort lead to a shortage of glucose (葡萄糖),a key resource that supplies the energy-hungry brain. Experiments in the early 2000s supported this concept —reporting that people experienced a reduction in blood glucose after a mentally demanding task and that consuming a sugary drink could make good sense.

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Throughout the experiment, participants were asked to make decisions that could reveal their mental tiredness. Participants who were assigned the more challenging task were more likely to choose low-cost and little-effort options, especially towards the end of the six hours.

So, is there some way around this limitation of our brain's ability to think hard? “Not really, I'm afraid ,”said Pessiglione, Wiehler's colleague. “I would remind you that tiredness is indeed a signal indicating you need to stop working to preserve the effectiveness of brain functioning. There is good evidence that the balance of glutamate is restored after a night's sleep."

1. What did researchers find through experiments in the early 2000s?
A.Blood glucose influences the brain's performance.
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D.Blood glucose levels fall fast with our emotional changes.
2. What does the underlined word “negligible” in Paragraph 3 probably mean?
A.Sensitive.B.Insignificant.C.Immeasurable.D.Complicated
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A.Thinking hard consumes a lot of glutamate.
B.Mental tiredness leads to people's false sense of time.
C.Single-minded people are likely to make wise decisions.
D.The buildup of glutamate upsets brain functioning.
4. What can be the best title for the text?
A.Why does thinking hard wear you out?
B.Why do people tend to make a to-do list?
C.How does your emotion affect your productivity?
D.How do varied leisure activities promote your sleep?
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【推荐3】A new study by a team of researchers shows that searching to evaluate the truthfulness of false news articles actually increases the probability of believing misinformation, not the opposite.

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“This points to the danger that ‘data voids’ — areas of the information ecosystem that are dominated by low quality, or even outright false, news and information — may be playing a resulting role in the online search process, leading to low return of credible information or, more alarming, the appearance of non-credible information at the top of search results,” observes lead author Kevin Aslett, an assistant professor at the University of Central Florida.

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“The findings highlight the need for media literacy programs to ground recommendations in search engines to invest in solutions to the challenges identified by this research,” concludes Joshua A Tucker, professor of politics.

1. What can we learn from the first three paragraphs?
A.The more you assess the realness of fake news online, the more you’ll believe it.
B.There is little low quality, or false news in the areas of the information ecosystem.
C.Evaluating online the realness of fake news would prevent you believing it.
D.Fake news and information usually can’t be found at the top of search results.
2. What aspect may the researchers focus on while doing the research?
A.Knowledge level.B.Time effect.
C.Web-tracking data.D.News type.
3. What does the underlined word “ground” mean?
A.Rely on.B.Focus on.C.Work on.D.Hold on.
4. Which section of a newspaper does the text probably come from?
A.EconomicsB.EntertainmentC.ScienceD.Insights
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