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We already know that exercise is good fo...

    We already know that exercise is good for our bodies. Daily exercise fights the loss of muscle tone and flexibility that tends to increase slowly with age. And it turns out that it has the same fountain-of-youth effects on our brains.

Studies show that over time our minds also become less flexible and nimble. We lose the ability to process new information or switch between mental tasks quickly — and now we know why.

A recent study examined nearly 100 individual studies on exercise and brain function and discovered exercising an average of 52 hours over six months is "associated with improved cognitive(认知的)performance in older adults with and without cognitive damage." The type of exercises that are beneficial include aerobic, strength-training and mind-body.

In previous studies, researchers from Japan's University of Tsukuba wanted to explore this idea by looking at the effect of exercise on this weakening of the brain. They tested the oxygen ability of 60 Japanese men between the ages of 64 and 75 who did not show any signs of dementia or other mental symptoms. Next, they looked at the brain activity of each man as he completed a mental task. They found that the fitter a participant was, the less brain activity he used to complete the tasks when compared with his out-of-shape peers(同龄人).

Although much research is focused on how exercise may benefit an aging brain, exercise offers brain health benefits at almost any age, and this includes children. A review of 14 studies showed that more physically active schoolchildren do better academically. Exercise actually causes your brain to grow in size. So get moving and keep moving for best results.

1.Which of the following best explains “nimble” underlined in Paragraph 2?

A.Intelligent. B.Dull. C.Unique. D.Simple.

2.What can we infer about the participants’ less-active peers?

A.They had significant brain advantages. B.Their brains were younger than their age.

C.They didn’t have to attend health classes. D.Their cognitive performance would decline.

3.How does the author support his idea?

A.By making comparisons. B.By analyzing study results.

C.By describing the processes. D.By telling his own experiences.

4.What’s the main idea of the text?

A.Exercise is beneficial for your bodies.

B.Exercise is especially good for the old.

C.Exercise can benefit your brain health.

D.Exercise may lower your risk of mental problems.

 

1.A 2.D 3.B 4.C 【解析】 本文是说明文。锻炼可以应对肌肉张力和灵活性的丧失,同样锻炼也能使大脑保持年轻。本文通过介绍多项研究结果,阐述了锻炼也能让我们的大脑健康受益这一观点。 1.词义推断题。第一段提到,肌肉的张力和灵活性往往随着我们变老而增长缓慢。此处作类比,指随着时间的推移我们的思维也变得不那么灵活和敏捷。intelligent“机智的,有灵性的”与flexible词义匹配,故选择A项。 2.推理判断题。第四段最后一句“They found that the fitter a participant was, the less brain activity he used to complete the tasks when compared with his out-of-shape peers(同龄人).”告知,与身材不佳的同龄人相比,实验参与者身体越健康,他们的认知能力就越强。逆向推断可知,锻炼少的人,其认知能力就会衰弱。应选D项。 3.推理判断题。由第三段“A recent study”、第四段“In previous studies”及最后一段“A review of 14 studies”部分可看出,作者是通过分析这些研究的结果来支撑其观点的,应选择B项。 4.主旨大意题。本文主要通过介绍多项研究结果,阐述了锻炼也能让我们的大脑健康受益这一观点。由文中的关键句“... and now we know why.”和“Exercise actually causes your brain to grow in size.”可知,本文的主题为“运动有益于你的大脑健康。”故选C。
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    James Harrison is called “The Man with the Golden Arm”. The Australian man has saved the lives of more than 2.4 million babies by donating blood nearly every week for 60 years.

At the age of 14, Harrison had an 11-hour operation to remove a lung. “ I received 13 units(liters) of blood and my life had been saved by unknown people,” Harrison said. “When I’m old enough, I’ll become a blood donor.”

That is exactly what Harrison did. Soon afterwards, doctors told him that his blood contains a rare antibody that could help mothers who have rhesus disease, a condition where a pregnant woman’s blood attacks the blood cells of her fetus(胎儿). In worst cases, it can result in brain damager or death for the baby, and until about 1967, thousands of babies were dying each year in Australia.

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Harrison was awarded the Australian Medal of Honor in recognition of his extraordinary efforts and generosity, but he doesn’t consider himself a hero. He’s now donated his blood 1,173 times, which gained him a Guinness World Record. But in all those times of giving blood, he’s never once watched. “I look at the ceiling or the nurses, maybe talk to them a bit. I can’t stand the sight of blood, and I can’t stand pain.”

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A.The rare antibody in his blood B.His gratitude to the blood donors

C.The request from the blood service D.His pain during the removal of his lung

2.What’s Anti-D used to do

A.Save babies by giving them injection B.Protect babies from common illness

C.Cure pregnant mothers with rhesus disease D.Prevent women’s blood from being attacked

3.What does Harrison hold the Guinness World Record for?

A.The age among blood donors B.The amount of blood he donated

C.The number of donations he made D.The number of babies he saved by donating

4.What does the author think of Harrison?

A.He is kind and curious B.He is generous and modest

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World’s Best Summer Festivals

The Governors Music Festival

A relative newcomer to the summer music festival scene, the Governors Ball offers a variety of performers and a taste of New York culture. Visitors can catch sets from rock, electronic, and performers, all while tasting food from popular New York City restaurants. To take a break from the music, festival goers can participate in activities such as Silent Disco or lawn(草坪)games.

WHERE: New York City

WHEN: June 3-5

Roskilde

Created by two Danish college students, Roskilde has developed from a hippie gathering ground to a mainstream music festival. The festival attracts an international following and features performances from more than watch their favorite artists perform inside large tents.

WHERE: Roskilde, Denmark

WHEN: June 25-July 2

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Set on Lake Geneva’s beautiful shoreline, the Montreux Jazz Festival attracts a global audience. Founded in 1967 as a jazz-only festival, Montreux has since evolved into a two-week-long showcase that attracts more than 200,000 music enthusiasts.  Performances don’t end on the shore; visitors can catch themed shows from boats and train cars.

WHERE: Montreux, Switzerland

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Rock al Parque

Rock al Parque is proud of an attendance of 88,600 visitors a day. Most music festivals require tickets, but the participation in the three-day festival is free of charge. Festival-goers line up to watch performances from some of Latin America’s most popular artists, but the festival also offers sets from international bands.

WHERE: Bogota, Colombia

WHEN: July 2-4

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A.It lasts the longest time

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About 43 years ago, I spotted an advertisement in the paper for the YMCA wildness program. I was 15 and wanted to do something different. My first experience was a boat trip. I still have the images of sunrises and sunsets with all beautiful colors on Lake of the Woods.

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2.What did the author think of his/her first boat trip?(No more than 10words)

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    In the mid-1990s, Dr. Marshall Duke, a psychologist at Emory University, was asked to help explore ceremonies in American families. “There was a lot of research at the time into the falling apart of the family,” he said. “But we were more interested in what families could do to oppose those forces.” And they found that the single most important thing you can do for your family may be the simplest of all: develop a strong family narrative(口述故事).

Around that time, Dr. Duke’s wife, Sara, a psychologist who works with children with learning disabilities, noticed something about her students. “The ones who know a lot about their families tend to do better when they face challenges,” she said.

Her husband was interested, and along with a colleague, Robyn Fivush, set out to learn if Sara’s assumption was valid. They developed a measure called the “Do You Know?” scale(量表)that asked children to answer 20 questions. Examples included: Do you know where you grandparents grew up? Do you know where your mom and dad went to high school? Do you know an illness or something really terrible that happened in your family?

Dr. Duke and Dr. Fivush asked those questions of four dozen families in the summer of 2001, and  taped several of their dinner table conversations. They then compared children’s results to a series of psychological tests the children had taken, and reached a surprising conclusion. The more children knew about their family’s history, the stronger their sense of control over their lives and the higher their self-respect. Why does knowing where your grandmother went to school help a child become tougher and happier? “The answers have to do with a child’s sense of being part of a larger family,” Dr. Duke said.

So if you want a happier family, retell the story of your family, especially about the positive moments and how you braved the difficult ones. That act alone may increase the probability that your family will thrive ( )for many generations to come. This is particularly important for children, whose identity tends to get locked in during adolescence.

1.What research topic attracted Dr. Duke most in the mid-1990s?

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C.To tell an interesting story D.To present a research result.

 

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