Chinese researchers say they have come up with a simple way to find out a person’s biological age —how much the body has aged physically – through a urine (尿) test.
Their findings will help researchers conduct numbers of ageing studies and even predict a person’s risk of age-related diseases, according to a paper published in the journal Frontiers in Ageing Neuroscience.
Another paper by researchers at the Beijing Hospital and the West China Hospital in Chengdu, Sichuan province, said on Tuesday that people aged at different rates due to changes in their genetic make-up and their environment.
Chronological age – which is based on one’s birth date —was not an exact measure of biological age so a more exact method was needed, the team said.
Ageing is driven by the lifelong gradual accumulation(积累) of a broad variety of molecular (分子) faults in the body’s cells. The team said they had identified a matter 8-oxoGsn that indicated increases in oxidative (氧化性) damage in urine as people’s bodies aged.
Cai Jianping, a co-author at the Beijing Hospital, said: “As we age, we suffer increasing oxidative damage and so the levels of oxidative matters increase in our body.” The team tested the levels of 8-oxoGsn in urine samples from 1,228 Chinese people aged two to 90 and concluded the marker helped accurately determine the stage of biological ageing in adults.
They had previously found that 8-oxoGsn levels also increased with age in the urine of animals such as mice.
The team has also developed a rapid analysis technique called ultra-high-performance liquid chromatography(层析法), which can process up to 10 urine samples an hour, according to the study.
1.Scientifically speaking, by what does a doctor judge the stage of a person getting old?
A. His psychology. B. His condition.
C. His biological age. D. His chronological age.
2.What are the outer factors the speed of one’s ageing physically depend on?
A. One’s birth date.
B. The changes in their genetic make-up and their environment.
C. The accumulation of various molecular faults in the body’s cells.
D. The increases in oxidative damage in urine.
3.Which can take the place of the underlined word “marker” in the sixth paragraph?
A. Molecular faults. B. 8-oxoGsn.
C. Oxidative damage. D. Stage of biological ageing in adults.
4.What is the passage about?
A. Why people are ageing.
B. What determines the stage of people’s ageing physically.
C. A rapid method with which to judge how much people are aging physically.
D. How to delay people’s ageing physically.
高二英语阅读理解中等难度题
Chinese researchers say they have come up with a simple way to find out a person’s biological age —how much the body has aged physically – through a urine (尿) test.
Their findings will help researchers conduct numbers of ageing studies and even predict a person’s risk of age-related diseases, according to a paper published in the journal Frontiers in Ageing Neuroscience.
Another paper by researchers at the Beijing Hospital and the West China Hospital in Chengdu, Sichuan province, said on Tuesday that people aged at different rates due to changes in their genetic make-up and their environment.
Chronological age – which is based on one’s birth date —was not an exact measure of biological age so a more exact method was needed, the team said.
Ageing is driven by the lifelong gradual accumulation(积累) of a broad variety of molecular (分子) faults in the body’s cells. The team said they had identified a matter 8-oxoGsn that indicated increases in oxidative (氧化性) damage in urine as people’s bodies aged.
Cai Jianping, a co-author at the Beijing Hospital, said: “As we age, we suffer increasing oxidative damage and so the levels of oxidative matters increase in our body.” The team tested the levels of 8-oxoGsn in urine samples from 1,228 Chinese people aged two to 90 and concluded the marker helped accurately determine the stage of biological ageing in adults.
They had previously found that 8-oxoGsn levels also increased with age in the urine of animals such as mice.
The team has also developed a rapid analysis technique called ultra-high-performance liquid chromatography(层析法), which can process up to 10 urine samples an hour, according to the study.
1.Scientifically speaking, by what does a doctor judge the stage of a person getting old?
A. His psychology. B. His condition.
C. His biological age. D. His chronological age.
2.What are the outer factors the speed of one’s ageing physically depend on?
A. One’s birth date.
B. The changes in their genetic make-up and their environment.
C. The accumulation of various molecular faults in the body’s cells.
D. The increases in oxidative damage in urine.
3.Which can take the place of the underlined word “marker” in the sixth paragraph?
A. Molecular faults. B. 8-oxoGsn.
C. Oxidative damage. D. Stage of biological ageing in adults.
4.What is the passage about?
A. Why people are ageing.
B. What determines the stage of people’s ageing physically.
C. A rapid method with which to judge how much people are aging physically.
D. How to delay people’s ageing physically.
高二英语阅读理解中等难度题查看答案及解析
Despite barriers and hardships，they ______ the research on cloning tissues.
A. come up with B. catch up with
C. push ahead with D. put up with
高二英语单项填空简单题查看答案及解析
How to Tell If Someone Is Happy or Sad on the Phone
Scientists have come up with some researches on what makes different types of people“tick”.
The scientists at the University of Cambridge have developed new mobile phone technology called Emotion Sense that can tell if a caller is happy, angry or sad.
Scientists hope to fit the speech recognition system to standard mobile phones and use it to determine emotions—it will also use a GPS tracking system to log where the call is made.
And they’ve already made some pretty major breakthroughs into really getting under the skin of us humans.
The results from the pilot scheme make interesting scientific reading. Among the key revelations (﹦facts) are that callers feel happier at home and sadder at work.
To break it down, scientifically, it shows 45 percent of all emotions produced at home are “happy”and 54 percent of emotions at work are “sad”.
Meanwhile, people show more “intense”(﹦nervous) emotions in the evening than they do in the morning.
Of course, this could just be because most people feel too tired in the morning to get overly “intense”. Eating breakfast and getting to work on time is usually enough of an achievement.
Anyway, the Emotion Sense technology has been developed by psychologists(心理学家) and computer scientists who say it uses speech recognition software and phone sensors(传感器) attached to standard smart phones to judge how callers’ emotions are changed by everyday factors.
The sensors analyze voice samples and these are then divided into five categories: happiness, sadness, fearfulness, anger or neutral-—boredom or passivity(消极) would fit into this last category.
1.How many emotions can the sensors tell?
A. Two B. Three C. Four D. Five
2.What does the underlined sentence mean?
A. Scientists have put something testing people’s emotions under humans’ skin.
B. There were some breakthroughs in this technology in getting something from people’s skin.
C. In this technology, people’s skin was broken through.
D. There were improvements in testing people’s emotions.
3.Why do most people feel less intense in the morning than in the evening?
A. Because morning is the start of a new day.
B. because they feel too tired in the morning.
C. Because of humans’ physiological structure.
D. Because of the fresh air and bright sunlight.
4.Which of the following hasn’t been put into the standard mobile phones?
A. Speech recognition software. B. Phone sensors.
C. GPS sensors. D. Translation system.
高二英语阅读理解中等难度题查看答案及解析
Advertising companies are always having to come up with new ways to ______ products.
A. design B. classify C. promote D. identify
高二英语单项填空简单题查看答案及解析
This is not a diet. It is a simple way to lose weight. You do not have to give up the food you love or join a gym. You just follow some habits thin people have. Keep them, and you’ll become thin.
Wake-up.
When you wake up in the morning, sit up slowly without using your hands with legs straight out, lean forward until you feel sore in your back. It will use up 10 calories.
1..
Order a clear soup, and have it before the main food. In this way, you will feel fuller and you’ll eat less when the main food comes.
2..
Apples are full of fiber and water, so your stomach will want less. Studies show that people who eat at least three apples or pears a day may lose weight.
3..
Every time you use the cell phone, stand up and walk around. Heavy people sit on average two and a half hours more a day than thin people. This skill is very important as standing up and walking around will burn up 50 or more calories.
Use these skills, and you will have a big weight loss.
A. How to lose weight
B. Eat an apple or more a day
C. Talk it up
D. Start with soup
高二英语信息匹配中等难度题查看答案及解析
This is not a diet. It’s a simple way to lose weight. You don’t have to give up the food you love or join a gym. You just follow some habits thin people have. Keep them, and you’ll become thin.
◆Wake-up
When you wake up in the morning, sit up slowly without using your hands. With legs straight out, lean forward(前俯) until you feel sore(酸痛的) in your back. It will use up 10 calories.
◆Start with soup
Order a clear soup, and have it before the main food. In this way, you’ll feel fuller, so you’ll eat less when the main food comes.
◆An apple or more a day
Apples are full of fiber(纤维) and water, so your stomach will want less. Studies show that people who eat at least three apples or pears a day may lose weight.
◆Talk it up
Every time you use the cell phone, stand up and walk around. Heavy people sit on average two and a half hours more each day than thin people. This skill is very important as standing up and walking around will burn up 50 or more calories.Use these skills, and you will have a big weight loss.
1..The text is to encourage you to ______.
A. go on a diet B. give up your favorite foods
C. join a gym D. follow some habits of thin people
2.Which of the following ways is a good choice to become thin?
A. Sit up quickly in the morning. B. Have soup before the main food.
C. Eat rice instead of apples. D. Sit down when using a cell phone.
3.How many skills are there in the text for people to lose weight?
A. Two B. Three
C. Four D. Five
4.The text is most likely to be read ______.
A. in a magazine B. in a dictionary
C. in a story-book D. on a map
高二英语阅读理解简单题查看答案及解析
Whale researchers believe they have found a new way to measure the amount of stress felt by whales when they experience serious threats, such as being hit by a ship, and they say the technique could help protect the huge sea creatures from dying off.
American Rosalind Rolland is the lead scientist on the project. She and her team are with the New England Aquarium in Boston, Massachusetts. They measured stress hormones (荷尔蒙 ) by studying baleen, a substance found in the upper part of the mouth of some kinds of whale. She explains that the baleen serves as a record that shows a spike in stress hormones when whales face dangers such as a changing climate and ship strikes. Scientists can then read these records, similar to reading the rings on a tree.
Understanding the information is important because whales who often feel stressed are less likely to be reproductive and more likely to become sick. That combination is not good for the whale population, which is already dangerously low.
The scientists did their work on a whale that had become trapped in fishing equipment, which some scientists estimate kills up to 300, 000 whales and dolphins annually. It was finally killed by Inuit hunters who found it trying to drag the fishing equipment. The hunters said the whale seemed to lack energy. When scientists examined the dead whale, they found its mouth showed an increase in stress hormones 20 times greater than normal.
Regina Asmutis-Silvia is a biologist with the Whale and Dolphin Conservation in Massachusetts. She didn’t participate in the research, but she says it is important. “We clearly understand that stress is bad for humans. We also need to understand that stress is bad for other animals, too,” she adds.
1.What does the text mainly tell us?
A.The dangers the whale often faces.
B.The measures to stop sea life being hit.
C.A discovery to measure stress on whales.
D.A way to protect the mouth of the whale.
2.Which of the following can best replace “spike” underlined in Paragraph 2?
A.Rise. B.Change. C.Crash. D.Slide.
3.What may a whale living a stressful life be like?
A.Calm and fierce. B.Unhealthy and unable to reproduce.
C.Uneasy and energetic. D.Sizeable and likely to lose appetite.
4.Why does the author mention the words by Regina?
A.To move on to another topic.
B.To stress the importance of the finding.
C.To tell the necessity of studying other animals.
D.To show the similarity between humans and animals.
高二英语阅读理解简单题查看答案及解析
Coming face-to-face with your inadequacies can be painful, to say the least. It challenges the way that you believe people see you and even makes you question yourself. 1.. But handling negative feedback properly will not only make you look well-behaved, but it could eventually help you grow as a person. Here’s how to do it.
Be objective about criticism
Before you jump to conclusions and begin to challenge the other person’s opinion, take a step back and look at it allsidedly. 2., don’t immediately allow your emotions to get the better of you, but rather, take a moment to consider whether the criticism is at all accurate.3..
Be open to the idea of change
4.. And it may be because of a concept called “cognitive dissonance” (认知失调) that can prevent us from changing even when that’s what we need most. “People have a view of themselves or the world that they only seek to confirm, not adjust or change,” Dr. Benn, a psychologist explains. “They may ignore criticism because they wish to avoid having to change, or because it makes them feel bad, or because they feel it is not helpful.”
Ask questions
If you’re open to using the criticism as a springboard to improvement, you will likely need more information. The initial moment you hear the criticism may not be the best time to ask for more details. Your emotions will be riding high, and you may not be particularly willing to accept extra information. 5.. “Engage with the person who criticized you, asking what you can do differently or how you can do better,” says Dr. Benn. Even if you don’t agree with their advice, thank them and promise to consider it.
A. Most of us are pretty stubborn
B. When you can’t hear clearly
C. Next time you get a bad review
D. Your immediate reaction may be to defend yourself
E. But it’s best to avoid getting into an argument
F. Give yourself a chance to really take in the information and evaluate it
G. However, when you feel ready, it could be worth revisiting the subject with the person who criticized you
高二英语短文填空中等难度题查看答案及解析
A new case study says Chinese companies face tough _____in the US and have a long way to go to be successful.
A. challenges B. campaigns C. motivations D. dilemmas
高二英语单项填空中等难度题查看答案及解析
Research universities have to keep up with the latest computer and scientific hardware __________ price.
A. on account of B. in addition to C. regardless of D. not to mention
高二英语单项填空简单题查看答案及解析