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题型:阅读理解-阅读单选 难度:0.65 引用次数:40 题号:15935895

We often hear that 60 is the new 50. Just check out the images of your grandparents or great-grandparents and notice their stooped(曲背的) bodies, their wrinkled faces when they were barely pushing 60. What a contrast with energetic, gym-going sexagenarians(六十几岁的人) of today!

The research overseen by gerontologist (老年学家) Taina Rantanen, compared adults born in 1910 and 1914 with those born roughly 30 years later. Both birth groups were examined in person at age 60 and again at 70 with the same set of six physical tests and five measures of cognition.

According to the research, the later-born group could walk faster, had a stronger hand grasp and could use more force with their lower legs. On cognitive tests, the later-born group had better verbal fluency, and scored higher on a test matching numbers to symbols. But not everything changed across the generations: measures of lung function were surprisingly not changing, and there was no improvement in the short-term-memory task of recalling a series of digits(数字).

There are many reasons why people are aging better, including improved medical care and a drop in smoking, but the key factor shown in the study of physical function was that the later-born adults were more physically active and had bigger bodies, which suggested better nutrition. For brain function, the key seemed to be more years of education.

“Education is a powerful influence on aging and health,” says Luigi Ferrucci, scientific director of the U. S. National Institute on Aging. “With more education, you are probably going to have a larger income, which means you are more likely to go to the doctor, and have good nutrition.” He also points out that the average lifespan is seven years shorter in a poor state such as Mississippi than in a wealthier one such as California. “Here we still have lots of people who cannot take the drugs they need because they cannot pay for them,” he says. In short, 60 may be the new 50 for many of us but not for all.

1. How does the writer begin the passage?
A.By imagining a scene.B.By making a comparison.
C.By raising a question.D.By presenting an image.
2. Which of the following is true about the research?
A.Not everything changed across the generations.
B.The later-born group could hardly grasp things tightly.
C.The later-born group did worse in matching numbers to symbols.
D.There was a little improvement in short-term memory in both groups.
3. According to the research, what contributes most to better physical aging?
A.Improved medical care.B.Education.
C.Better nutrition.D.Energetic images.
4. What is the main idea of the passage?
A.Many reasons contribute to people’s better physical function.
B.Today’s energetic sexagenarians have much better images.
C.Education is the key to people’s better aging.
D.People today are aging better than people born earlier.
【知识点】 科普知识 说明文

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【推荐1】4 Memory Exercises Proven to Keep Your Brain Sharp

Play a new sport

    1     Athletic activities that motivate your mind and body, such as yoga, golf, or tennis, have been linked to improved brain function and energy levels.     2     And then study up on the rules and procedures. If you can't make it to a gym, log on to these free brain games you have never tried.

Challenge your fine-motor (精细运动) skills

Learning a sport or enrolling in a new class, mastering an activity that requires considerable hand-eye coordination can keep your brain active and healthy. Pick up a new hobby that requires you to use your hands, such as knitting, painting, or assembling a jigsaw puzzle. Even better, chew gum while you do it.    3    

Memorize phone numbers

Even a short bra in-training session can make a big difference for your memory. By challenging your brain with memorization puzzles, experts believe you can protect your brain cells and strengthen the connections between them,     4     Ashraf Al, MD, recommends dividing each 10-digit number into three sections; for example, 801 555 8372 is much easier to remember than 8015558372.

Create a memorial phrase

Making a memorial device is one perfect way to store an important rule, fact, or to-do list in your memory bank. Some are acronyms (首字母缩略词), such as RICE, (Rest, Ice, Compression, and Elevation), a first-aid treatment for injuries.    5     You can use “spring forward, fall back,” as a reminder to reset your clock twice a year. The next time you need to memorize something in a hurry, come up with a clever acronym or sentence for it.

A.Others come in the form of sentences.
B.Focus your energy on new information instead.
C.Sign up to learn a sport you have never played before.
D.Impress your friends by memorizing their phone numbers.
E.Getting your heart pumping can also keep your brain bumping.
F.These memorial phrases will help you remember 14 or more basic facts.
G.Chewing gum while completing a task could improve concentration and memory.
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文章大意:本文是一篇说明文,主要讲的是绘制海底地图会给人们带来一定的好处,但绘制整个海底地图是艰巨的,它需要公司与海底地图绘制者合作。

【推荐2】Only around a couple dozen people have been to the deepest part of the ocean floor, a place known as Challenger Deep. One of them is marine geographer Dawn Wright, a chief scientist of the Environmental Systems Rescarch Institute. She’s also part of a global race to map the entirety of the world’s oceans by 2030.

Challenger Deep is about 11,000 meters below the surface of the Pacific Ocean. In July 2022, Wright and pilot and ocean explorer Victor Vescovo sank in a submersible (潜水器). Once the pair sank about 800 meters, they lost sunlight and saw worms,   jellyfish and anglerfish that could create their own light. Wright and Vescovo were focused on testing a special mapping device, thus making a map.

Mapping the bottom of the ocean is for many things. For instance, installing (安装) underwater cables stretching between continents, which account for the vast majority of our Internet traffic, requires a map of the seafloor, and offshore wind farm developers also need to know the composition of the seafloor to fix turbines (涡轮机).

Historically, satellite data has been critical to mapping the ocean, but Wright says these maps are too unclear to see fine details. What is the solution? It’s using sonar mapping, meaning an instrument sends pulses of sound from the ocean surface down toward the seafloor and waits for it to come back up. Based on the amount of time it takes for the sound to return and factors like temperature and salt content, scientists can get a specific depth.

Only about 25% of the world’s seafloor is currently mapped in detail, but an initiative called Seabed 2030 aims to get to 100% in just over six years. To complete the picture, ocean mappers are expecting industries to fill in some of the gaps. “The hope is that we can very quickly get to 40% if we can get a lot of these companies to release their data and to make it public,” says Wright.

1. Why did Wright and Vescovo go to Challenger Deep?
A.To study ocean creatures.B.To map the seafloor.
C.To test the submersible.D.To enjoy themselves.
2. What is paragraph 3 mainly about?
A.The benefits of mapping the seafloor.
B.The need to build offshore wind farms.
C.The way the Internet traffic works.
D.The similarities among continents.
3. What does Wright probably suggest companies do in the last paragraph?
A.Collect more information.B.Learn to use sonar mapping.
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A.Seafloor Mapping Is Now a Hot Topic in Science
B.Scientists Cooperate to Map the Entire Seafloor
C.Mapping the Seafloor Is Challenging But Essential
D.The Entire Seafloor Will Be Mapped Successfully Soon
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【推荐3】In a human context, multitasking(多任务处理) refers to performing different activities at the same time, such as editing a document or replying to emails while participating in a teleconference. People think that they are capable of doing many things at once. However, the fact remains that they are merely switching from one job to another.

Several types of research have been done to see how multitasking affects our brains. A study conducted to see if multitasking while driving was good or bad, concluded that performance is primarily reduced when there is a research conflict.

According to the studies, the only time you can multitask is when you’re doing two things and one of them doesn’t require your attention or mental energy, for example jogging while listening to music. In many cases, multitasking has long-term, harmful effects on your health, well-being, and productivity.

Sometimes the tendency to multitask takes a toll on the relationship and the partner feels neglected. Imagine discussing something with your partner while he or she is constantly engaged on the mobile phone checking social media or email. How would that make you feel?

Researchers investigated if multitasking increases our productivity and effectiveness. The findings showed that multitasking made individuals less effective and productive, which is contrary to what most multitaskers believe.

There is a cognitive(认知的) cost every time we go from one task to another, which reduces our productivity. Multitasking implies you are constantly shifting your attention between multiple tasks-it is no different from being distracted.

We’d like to believe that doing numerous activities at once is achievable, but it comes at the cost of lowering the quality and amount of attention paid to each task. As a result, you’re less productive and less efficient than someone who concentrates on one task at a time.

What’s more, we lose time and energy when we switch tasks. A study found that when switching between different tasks, the amount of time wasted depends on various factors, and it could range from seconds to hours.

1. Why does the author mention jogging and listening to music?
A.To show multitasking is possible.B.To prove multitasking is rewarding.
C.To prove multitasking is difficult.D.To show multitasking is harmful.
2. What does the underlined phrase “takes a toll on” in Paragraph 4 mean?
A.Causes damage to.B.Has an influence on.
C.Makes no difference to.D.Is associated with.
3. What do most multitakers think of multitasking?
A.It does harm to mental health.B.It affects work performance.
C.It improved work efficiency.D.It extends working hours.
4. Which is the most suitable title for the text?
A.Why people like multitakingB.How to achieve multitasking
C.Is multitasking a good thing?D.Can we multitask at all?
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