Scientists have long known a fairly reliable way to extend life span in rodents(啮齿类动物) and other lab animals: Reduce the amount of calories they eat by 10 percent to 40 percent.
This strategy known as caloric restriction, has been shown to increase the life span of various organisms and reduce their rate of cancer and other age-related ailments. Whether it can do the same in people has been an open question. But an intriguing new study suggests that in young and middle-aged adults, chronically(慢性地) restricting calorie intake can have an impact on their health.
In the new study, researchers looked at a group of 143 healthy men and women who were instructed to practice caloric restriction for two years, with the aim of cutting the calories they consumed by 25 percent.
On average, the dieters managed to slash about 12 percent of their total calories, or roughly 300 calories a day, the amount in a few chocolate chip cookies or a small Starbucks Mocha. But the group saw many of their health markers improve.
They lost weight and body fat. Their blood pressure fell slightly, and they had better blood sugar control and less inflammation. At the same time, a control group of 75 healthy people who did not practice caloric restriction saw no improvements in any of these markers. Some of the benefits in the calorie restricted group stemmed from the fact that they lost a large amount of weight. However, the results of the survey suggest that caloric restriction might have some unique biological effects on disease pathways in the body.
Calorie restriction may be a useful tool for better health and weight loss, but it’s unclear whether the changes in the new study will ultimately translate into longevity and reductions in chronic disease, said Frank Hu, the chairman of the nutrition department at the Harvard, who was not involved in the research.
1.What happened to the lab animals, after the amount of calories was reduced?
A.More lab animals got cancers.
B.More Lab animals can live longer.
C.Health condition of lab animals got worse.
D.Lab animals will suffer from no disease in their future life.
2.From the study, after caloric restriction, what happened to the 143 people?
A.Their healthy markers improved.
B.They did not get chronic diseases.
C.They did not get lose any weight at all.
D.They did not eat chocolate chip cookies.
3.Which work has the similar meaning to the underline word, slash?
A.Reduce. B.Increase.
C.Add. D.Beat.
4.From Frank Hu’s words, what can be inferred?
A.Calorie restriction is beneficial to weight loss.
B.People with caloric restriction will love longer than others.
C.More people should be encouraged to take caloric restriction in life.
D.The relation between caloric restriction and longer lifespan is uncertain.
This month, when earthquakes rocked Southern California on back-to-back days, it was a shocking reminder that we may one day experience the “Big One,” a quake with the power to kill and destroy. However a few people saw something else: a photo opportunity.
Tourists flocked to a large crack in a highway to see evidence of the damage for themselves and, of course, take a quick selfie(自拍).
It was only the latest example of how our modern love of sharing photos we take of ourselves in notable situations is colliding with nature and the world, often in confusing and even dangerous ways.
In Canada, a sunflower farm barred visitors last year after selfie-seekers destroyed flowers and left the land looking like a “zombie apocalypse.”(僵尸启示录) In Spain, a man was gored in the neck last weekend while trying to take a video selfie at the annual running of the bulls in Pamplona.
The selfie phenomenon entered the mainstream after Apple and other phonemakers added front-facing cameras starting in 2010, the same year Instagram and other photo-sharing apps were becoming popular. From 2011 to 2017, more than 250 people died while taking selfies, according to a study by researchers in India, which had by far the highest number of such deaths, followed by Russia and the United States. Many died after drowning, falling or being attacked by an animal. Most were under the age of 30.
It’s easy to be uncomfortable with selfies and even mock them, especially when they’re risky or in bad taste. But some researchers have explored different questions: Why do we take selfies? Can they ever be a healthy form of expression? Can selfies be used for good?
1.Why does the author mention the earthquake happened in Southern California?
A.To show how severe the earthquake is.
B.To warn the readers of the dangers in the earthquake.
C.To introduce the risky behavior of the crazy selfie takers.
D.To show how scared people are when earthquake happened.
2.The sunflower farm in Canada barred visitors, because____________
A.there are too many visitors.
B.the farm used to be devastated by selfie seekers.
C.the sunflowers are supposed to be well protected.
D.the farm owner did not want others to enjoy the beautiful sunflowers.
3.What is the right order of the following countries according to the number of selfie deaths?
A.the US, India, Russia. B.Russia, the US, India.
C.India, Russia, the US. D.India, the US, Russia.
4.How did the author feel about selfie?
A.Positive. B.Negative.
C.Ambiguous. D.Uncaring.
New York is an overwhelming city to visit with children. What follows is carefully collected advice from New Yorkers on how to cover the city right.
Tenement Museum
The Tenement Museum on the Lower East Side offers a fantastic glimpse into urban family life. Guided tours reveal the daily routines of generations of Irish, Jewish and Italian immigrants who made their mark then quickly moved up and out. Pick up a copy of “All-of-a-Kind Family”or a vintage toy in the museum shop, one of the city’s best.
MoMA Museum
MoMA Museum does an excellent job making modern and contemporary art accessible to children as young as 4. On weekend mornings, guided tours are divided into age-appropriate groups in which children can observe a number of works and draw; later they gain free admittance to the entire museum. The cafeteria is both grown-up and child-friendly, and there’s an art laboratory with hands-on activities and even an audio guide for young people.
Intrepid Sea, Air and Space Museum
The most significant in the museum is the Space Shuttle Pavilion, which is scheduled to reopen in July, showcasing the Enterprise, NASA’s first space shuttle, which arrived last year. The U.S.S. Intrepid, a World War II-era aircraft carrier, is worthwhile in itself. While the complex suffered damage during Hurricane Sandy, most of its facilities are once again shipshape. Families may want to consider Operation Slumber, which allows for overnight visits with special activities for children 6 and older.
Children’s Museum of the Arts
All the artwork here is made by children, and visitors can make their own （bonus: you don’t have to clean up）. An area for younger children includes sand, Play-Doh and guided music activities. Children go berserk for the Ball Pond, a closed-in area of oversize balls. Is it experiential art? An installation? Children need not bother with such imponderables.
1.Which of the following museums offer free admission?
A.Tenement Museum. B.MoMa Museum.
C.Intrepid Sea, Air and Space Museum. D.Children’s Museum of Arts.
2.How is Children’s Museum of the Arts different from the other three museums?
A.It is located in New York.
B.It exhibits a lot of artwork.
C.Its artwork is all created by children.
D.It used to be damaged in the Hurrican Sandy.
3.What do the four museums have in common?
A.They are all children-friendly.
B.They all show visitors contemporary artwork.
C.They can offer visitors activities to take part in.
D.They are all suitable for children over 4 years old.
请阅读下面有关我国短视频收入的柱状图及相关文字，按照要求写一篇150 词左右的文章。
The short video industry experienced explosive growth in 2018，with its market value reaching 11.8 billion yuan，up 110 percent. It is estimated that the figure will hit 35 billion yuan by 2020.
There are several ways for short video posters to make a profit：from advertisements，virtual gifts sent by fans which can be converted into cash，selling products online or charging viewers for the content.
Some of the main video sharing platforms such as Douyin，also known as TikTok，and Kuaishou have launched campaigns cooperating with local governments to help some rural residents out of poverty. In the past year，over 16 million vloggers gained income on Kuaishou， of which 3.4 million people came from areas in poverty but with rich resources.
（写作内容）
1. 用约 30 个单词概述柱状图信息的主要内容；
2. 短视频流行的原因有哪些，简要谈谈你的看法（原因不少于两点）；
3. 谈谈你对如何规范短视频的建议。
（写作要求）
1. 写作过程中不能直接引用原文语句；
2. 作文中不能出现真实姓名和学校名称；
3. 不必写标题。
（评分标准）
内容完整，语言规范，语篇连贯，词数适当。
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请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
注意：每个空格只填1个单词。请将答案写在答题卡上相应题号的横线上。
Social anxiety(社交恐惧症) is a type of anxiety problem. People with social anxiety can usually interact easily with family and a few close friends. Instead of enjoying social activities, they might fear them and avoid some of them altogether. Like other anxieties, it is a fear reaction to something that isn't actually dangerous, although the body and mind react as if the danger is real. Because the physical sensations that go with the response are real and sometimes quite strong the danger seems real. With social anxiety, a person's fears and concerns are focused on the social performance whether it's a major class presentation or small talk at the lockers. People tend to feel embarrassed and uncomfortable about being noticed or judged by others.
Social anxiety might prevent someone from chatting with friends in the lunchroom, joining an afterschool club, going to a party, or asking someone on a date. It might keep a person from volunteering an answer in class, reading aloud, or giving a presentation. It might prevent someone from acting the school play, being in the talent show, trying out for a team, or joining in a service project. It also prevents them from making the normal, everyday mistakes that help people improve their skills still further.
Social anxiety develops because the genetic features from parents and other relatives can influence how the brain senses and controls anxiety, shyness, nervousness, and stress reactions. Meanwhile, some people are born with a shy character and tend to be cautious and sensitive in new situations and prefer what's familiar. Naturally a person's shy character can be influenced by what he or she learns from role models. If parents or others react by overprotecting a child who is shy, the child won't have a chance to get used to new situations and new people. If people born with a cautious nature have stressful experiences, social anxiety can make them even more cautious and shy. Feeling pressured to interact in ways they don't feel ready for, being criticized or insulted, or having other fears and worries can make it more likely for a shy or fearful person to develop social anxiety.
Sometimes, but not always, medicines that reduce anxiety are used as part of the treatment. Family or friends are especially important and the right support from a few key people can help those with social anxiety gather the courage to go outside their comfort zone and try something new. Dealing with social anxiety takes patience, courage to face fears and try new things, and the willingness to practice.
Social Anxiety | |
Passage outline | Supporting details |
Some 1. involved with social anxiety | ●Seldom get in touch with 2.． ●Wrongly react to something without danger in fact because of strong physical sensations. ●Pay too much attention to others' 3.，feeling embarrassed and uncomfortable. |
Influences on people | ●To make people feel lonely or disappointed over missed opportunities for4. and fun. ●To avoid getting the most out of school. ●To miss a chance to share their talents and learn new 5.. |
6. of developing social anxiety | ●Have something to do with a person's biological factors. ●Naturally get influenced by the 7.from role models especially parents. ●Live a life with stressful and worrying 8. or events. |
Ways to overcome social anxiety | ●Go to 9. according to the condition of illness. ●Try to be 10. by family or friends and look for a new life. ●Keep patient, courageous and willing to practice. |
A few weeks ago, a 71-year-old man pulled his car to the roadside in Northwest Portland and stopped. He rolled down the window, turned off the engine and stared at a house.
The place, distinguished by three gables, is partially hidden by hedges and trees. Most people who pass by would never notice it. And if they did give it a glance, they’d probably think it’s a nice house in a nice neighborhood. Nothing more.
The house, in the 2500 block of Northwest Westover Road, is known as the Bessie & Louis Tarpley House. Built in 1907, it’s listed on the National Register of Historic Places.
The current owner is Barbee Lyon, 79.
He and his first wife took possession in 1975. When they divorced, he bought out her share.
A retired lawyer, Lyon learned Louis Tarpley, the home’s first owner, had also been a Portland lawyer. Setbacks in Tarpley’s life led to the house auction(拍卖) in the late 1920s.
“I’m only the fifth owner of the home,” Lyon said. A previous owner was Frank Masco.
He and his wife, Esther, and their nine children had lived across town in a tiny house needing constant repairs. In the mid-1950s, the elder Masco wanted to move to a bigger house and one closer to work. A docker ( 码 头 工 人 ), he was on-call 24 hours a day and had to quickly get to the Willamette River docks.
He found a home on Westover Road. At the time, many people wanted to live in new construction in the suburbs. The Westover house was offered at a deep discount.
And later the family moved on several times, finally living in Vancouver.
One Sunday in July 2019, Charley Masco drove to Portland for an appointment at a computer store.
When it ended, he traveled the familiar route to Westover Road, pulled over and looked at that home.
He decided to do something bold. He got out of his car and walked up the steps and rang the doorbell. He waited. No response. Nervous, he thought it was a mistake to do this and considered turning around and walking back to his car.
Barbee Lyon opened the door and saw a stranger.
“I’m not selling anything,” Masco said quickly. “I just want you to know I once lived here.” Lyon opened the door wide.
“Come in.”
And for the first time since 1966, Masco stepped into his childhood home.
Every room looked as Masco had remembered it: The built-in china hutch in the dining room, the hanging lights above the table and, in the kitchen, a massive wood-burning stove where his mother used to cook family meals. It was as if he had walked into his own museum.
Lyon told Masco he’d never done major structural remodeling, which meant Masco knew his way around the home.
It was as if he had never left.
There, on the top floor, was the window he and his siblings quietly opened to sneak out at night and return before their parents knew they were gone. The loft where friends daydreamed about the future. The living room – no TV ever allowed – where the family gathered to share music, play cards or just talk with each other.
Then they all walked to the basement.
In the far corner, Masco saw his father’s old wooden workbench. And above it, baby food jars.
Masco had forgotten about them.
He explained that his father had nailed lids from the jars to a rafter, filling the glass with different size screws, nuts and bolts, and then screwing the jars back into the lids to give him easy access while working.
Masco thought about his father, his mother and three of his siblings who have died. He thought about his father, tinkering in the basement, while his mother was in the kitchen preparing dinner.
He thought about the 71-year-old man he was and the boy he had once been.
Kruse, Lyon’s wife, reached up and unscrewed a jar. She handed it to Masco, believing it belonged to this stranger.
Masco thanked her.
He clutched the small bottle to his chest. “My dad,” he said quietly. “This is my dad.”
1.Why did Charley Masco come to visit the Westover house?
A.He wanted to review his past and hold memories.
B.He attempted to buy back his childhood house.
C.His friend invited him to be a guest at his newly-bought house.
D.He came to the house where his father lived to seek roots.
2.What made Frank Masco decide to buy the house?
A.The house’s owner had been a Portland lawyer.
B.The house was auctioned at a very low price.
C.He desired to improve his family’s living conditions.
D.The house was equipped with a basement.
3.What do we know about Barbee Lyon?
A.He bought the house from Louis Tarpley.
B.He took possession of the house at about 35.
C.He lived in the house with his first wife Kruse.
D.He disliked being disturbed by strangers.
4.Why did Charley Masco feel nervous when he rang the doorbell?
A.He knew the house owner was a bad-tempered man.
B.He thought it was improper to pay an unexpected visit.
C.He might not hold back his feelings when he went in.
D.He feared the house owner would take him for a salesman.
5.After Masco entered the house, he found that _.
A.every room was not as he had remembered it
B.the house had experienced great structural changes
C.the childhood home was where his heart was
D.he couldn’t recall anything about baby food jars
6.What can be a suitable title for the passage?
A.Collision of Two Hearts B.Experiences of Two Families
C.An Unexpected Meeting D.The Harbour of the Heart
