Average age is rising around the world—a demographic (人口统计) change that may pose a significant challenge to efforts to slow down climate change.
Hossein Estiri at Harvard University and Emilio Zagheni of the Max Planck Institute for Demographic Research, Germany, have found that energy use increases as we get older, and not just because we tend to get wealthier. An ageing population could mean a greater proportion of society with higher energy use, their study suggests.
They combined two decades, worth of data from thousands of US households and used this to build a model to reveal how energy use varied across 17 age groups between 1987 and 2009. They found that, on average, children’s energy consumption climbs as they grow up, before dipping slightly when they leave home. Consumption then rises again when people hit their 30s, before briefly dropping after 55, and then beginning to climb again. The study involved factors such as income, local climate and the age, type and size of a person’s home. The increase in energy use at various points in our lifespan (寿命) seems to be the result of life style and how our needs change as we age.
Why does demand grow so much in our 30s?“We need more of everything. More space, a bigger TV two fridges,” says Estiri. The study found that, in warmer parts of the US, energy use increases in people over the age of 65—probably as a result of increased use of air conditioning, This suggests that there is a feedback effect between climate change and an ageing population that will only make matters worse.
Heat waves have become more common in the US in recent years and are expected to become more frequent due to global warming. More older people using more electrical energy to keep cool as temperatures rise could add to emissions, and thus drive more warming until our energy supply becomes entirely fossil fuel-free.
“This confluence of population, ageing and climate change on energy demand is really important to start thin king about,” says Estiri. Benjamin Sovacool at the University of Sussex, UK, says the work shows the importance of demographics when it comes to cutting carbon emissions. Most modelling of climate change mitigation (减缓气候变化的模型) assumes people’s energy consumption either stays the same or only changes by a small amount over time.
“This study directly challenges that entire body of research by forcing it to fight with the temporality and complexity of the consumption of energy,” says Sovacool.
Catherine Mitchell at the University of Exeter, UK, says the research could have an important influence on policy makers. “What the paper says is that there is a lot of work about how buildings use energy, but probably not enough about how the people in them use energy,” she says.
1. By saying “not just because we tend to get wealthier” in Paragraph 2, the writer probably means that .A.poor people can’t bring down the high demand for energy |
B.a comfortable life is not the main cause of in creased energy use |
C.there are some other reasons leading to the increase in energy consumption |
D.people being wealthy or not has nothing to do with the rise of energy consumption |
A.change | B.meeting | C.decrease | D.possibility |
A.It is expensive and difficult to promote. |
B.It overestimates the household energy consumption. |
C.It did not take climate change adaptation into account. |
D.It regards energy consumption as stable or as only slightly changing. |
A.More emphasis should be put on people’s energy use. |
B.The government can't do much without the support of the study. |
C.It is the buildings, not the people in side, that consume the majority of the energy. |
D.Policymakers have been working on how to cut down people’s energy use. |
相似题推荐
【推荐1】The Truth about the Joneses
You know the Joneses. Or maybe for you it's the Smiths, or the Millers.
But the Joneses may not be who you think they are.
So be happy for them or feel sorry for them. But don't try to keep up with them!
Contentment is a choice. It's having an attitude of joy when everyone else is attempting to buy happiness. So who cares if Mrs. Jones drives a luxury SUV with heated seats and keyless entry? Good for her. Your 10-year-old car gets you everywhere her sweet ride gets her.
But you know the significance of your actions.
A.That only leads to dissatisfaction. |
B.You may just want another reliable car. |
C.They may be up to their eyeballs in debt. |
D.At this point, you may still feel worried about looking good. |
E.They're the people who have everything bigger and better than you do. |
F.You've wasted enough energy keeping up with people you don't really care. |
G.Right now you're doing whatever it takes to build a solid foundation for your family. |
【推荐2】Positive Body Image Isn’t Enough
Body image as a construct focuses on our relationship with what our bodies look like. Most research in the field that’s been conducted with adolescent girls has focused on negative body image and its association with things like body dissatisfaction and eating disorders.
To fulfill this goal, we need to find ways to promote positive embodiment — that is, healthy ways of subjectively experiencing one’s body in the world that go above and beyond the way we look to the outside world.
1. Promote mindful self-care. In today’s “selfie” culture, where it seems like everything is about appearance, how do we help teens focus on the subjective, lived-in experiences in their bodies? One way is to promote mindful self-care — defined by Cook-Cottone (2015) as behaviors that cultivate an active appreciation for, and engagement with, the body. So, things that promote mind-body connection, like mindfulness, art, and the physical care of the body.
2.
3. Look at the social context. Positive embodiment doesn’t develop on its own. Teens are under pressure from all directions, including peers, social media, and parents.
A.In promoting these activities, we can encourage teens to focus on how they feel from within when engaged in these pursuits — rather than what they looked like while doing them. |
B.As such, we can model ways of engaging in activities that promote positive embodiment and encourage girls to surround themselves with peers who do the same. |
C.Although body image plays a role in having positive embodiment, the two don’t always go hand-in-hand. |
D.In recent years, however, there has been a movement toward focusing on positive body image. |
E.Be confident of body image. |
F.Focus on body functionality. |
【推荐3】Many airlines overbook their flights — meaning they sell more tickets than there are seats on the plane. But why do they do it, and what happens to passengers who arrive at the airport only to learn that their seats are already taken?
Like any business, airlines want to make money. So, they try to fill as many seats on each plane as possible. After all, empty seats are a financial loss on airlines.
Airlines look at data from past flights to predict the number of expected “no-shows”, passengers who canceled their flight, don’t show up or arrive late because of the connecting flights. For example, if the data shows that eight people normally don’t show up for flights from New York to Los Angeles, the airline might sell eight extra tickets.
However, the airlines sometimes get their numbers wrong. If there are too many people and not enough seats, the airline may ask passengers to volunteer to take a later flight for compensation (赔偿) — which might include money, travel vouchers (优惠券), free meals and hotel rooms. Some airlines have offered as much as $10,000 to get people to volunteer. However, if there are no volunteers, airlines may have to make passengers give up their seats. This is called “bumping”.
Although there’s no exact science, it’s often the lowest fares that get bumped to the next flight first. This means those flying business class or first class are highly unlikely to be bumped. Airlines have also admitted to bumping people based on the time of check — in arriving last minute is not recommended. Certain groups are less likely to be denied boarding due to overbooking, such as frequent flyers, the elderly, families with young children and people with disabilities.
In the US, if a bumped passenger is able to arrive at their destination less than an hour late using another flight, no compensation is required by law — although airlines may offer some. If they arrive over two hours late, the law requires that they be given 400% of the one-way ticket price, up to a total of $1,550.
1. How do airlines determine the number of extra tickets?A.By analyzing the passengers’ loyalty. |
B.By checking the number of unsold seats. |
C.By checking the passengers’ information. |
D.By analyzing the previous number of no-shows. |
A.Every airline sells more tickets than the seats on the plane. |
B.Airlines always bump people based on the time of check-in. |
C.The volunteers who take a later flight may get $10,000 as compensation. |
D.The airlines sell eight extra tickets for flights from New York to Los Angeles. |
A.A couple with a baby. | B.A man flying business class. |
C.An old man in the wheelchair. | D.A young lady arriving last minute. |
A.What Is the Best Time to Check-in? |
B.What if You Are Late for Your Flight? |
C.Why Do Airlines Overbook Their Flights? |
D.How Could You Get Compensation from Airlines? |
【推荐1】Video calls are a common occurrence, but have you imagined being able to touch the person on the other end of the line? Scientists are making this a reality.
Researchers at the University of New South Wales Australia, have invented a soft skin stretch device (SSD), a haptic device that can recreate the sense of touch. Haptic technology imitates the experience of touch by stimulating localized areas of the skin in ways that are similar to what is felt in the real worlds through force, vibration or motion.
Vibration is the most common haptic technology today and has been built into many electronic devices, such as one attached to the back of a trackpad in laptops, which simulates a button clicking. However, haptic feedback with vibration becomes less sensitive when used continuously. The existing technology also has great difficulty recreating the sense of touch with objects in virtual environments or located remotely according to Mai Thanh Thai, lead author of the study.
The new technology overcomes issues with existing haptic devices. The research team introduced a novel method to recreate the sense of touch through soft, artificial “muscles”.
“Our three-way directional skin stretch device, built into the fingertips of the wearable haptic glove we also created, is like wearing a second skin—it’s soil, stretchable and mimics the sense of touch—and will enable new forms of haptic communication to enhance everyday activities, ” said Thanh Nho Do, senior author of the study.
It works like this: Imagine you are at home and you call your friend who is in Australia. You wear a haptic glove with the SSDs and your friend also wears a glove with integrated 3D force sensors. If your friend picks up an object, it will physically press against your friend’s lingers. And the glove with 3D force sensors will measure these interactions. The force signals can be sent to your glove so your device will generate the same 3D forces, making you experience the same sense of touch as your friend.
The haptic devices could be applied in various scenes, allowing users to feel objects inside a virtual world or at a distance. This could be especially beneficial during such times like the COVID-19 pandemic when people rely on video calls to stay connected with loved ones. Or it could be used in medical practices. Doctors can feel a patient’s organ tissues with surgical(手术的)tools without touching them.
1. What can we learn about the SSD?A.It imitates the sense of touch through animal skin. |
B.It mainly uses vibration technology. |
C.It makes virtual haptic communication possible. |
D.It takes the shape of a glove. |
A.The advantages of the new haptic glove. |
B.An explanation of how the haptic device works. |
C.The applications of the new haptic technology. |
D.A personal experience of using SSDs during a video call. |
A.Interviewing someone face to face. |
B.Recreating organ tissues. |
C.Evaluating surgeries from a distance. |
D.Feeling a silk scarf being sold online. |
A.To encourage the use of a new product. |
B.To introduce the development of haptic technology. |
C.To compare different haptic devices. |
D.To inform readers of a new invention. |
【推荐2】One of the best things about new technology is how it makes the world more accessible to people with disabilities. Take Siri or Alexa, for example. They are a convenience or even a toy for most people. But if you’re blind, they’re potential life savers, capable of sending messages or receiving instructions, entirely through the power of your voice.
What’s truly exciting is how advances in artificial intelligence (AI) are enabling the creation of even smarter accessibility features. On the most recent Google Pixel phones, it’s possible to turn on a feature called “Live Captions”. This means that deaf people can easily watch videos — or even make video calls. And perhaps more magically, iPhone will even let you create a simulation of your own voice and have it speak for you, giving us all technology similar to what Stephen Hawking used, but in the palms of our hands.
What I think is most striking though is what all of these clever accessibility features mean for the rest of us, who may not need to use the features for their intended uses. The idea behind smart headsets — if they’re ever going to be truly useful — is that they will work almost as an extension of brains and bodies. We’ll want them to give us directions when we need them, and help us understand our surroundings. And we’ll need a way to interact with headsets without buttons or a touchscreen, using our voice or by gesturing with our hands.
This is for sure a tricky technical challenge, but it’s actually possible to imagine how such headsets might work, because these fundamental technologies already exist thanks to accessibility features on smartphones already on the market.
Ultimately, this is a great way to think about accessibility features and why they’re so important on our modern devices. Because they don’t just help the people who need them — they help make our technology even better for everyone else too.
1. How does the author prove the point in the second paragraph?A.By giving examples. |
B.By making a summary. |
C.By giving definition. |
D.By making a comparison. |
A.To evaluate the uses of the phone. |
B.To give instructions to the disabled. |
C.To help users in solving various phones problems. |
D.To make the world more accessible to the disabled. |
A.Standard size. | B.Complex function. |
C.Delicate design. | D.Convenient operation. |
A.A new function of mobile phones. |
B.A vital role of accessibility features. |
C.A rapid change in life for the disabled. |
D.A technical challenge of modern devices. |
【推荐3】A recent experiment conducted at the University of British Columbia(UBC)in Canada has an “Aha!” moment for anyone who wants to form habits that increase everyday happiness and well-being.
Researchers walked around campus handing out $5 or $20 bills, asking participants to spend the money by the end of the day. The participants weren’t told what the purpose of the research was, only that they were part of a study. Half the participants were told to spend the money on themselves, the other half were tasked with spending it to benefit someone else. At the end of the day, those who had spent the money on others reported a greater sense of happiness and well-being than those who had spent it on themselves.
Aha! Kindness is connected to happiness. This likely won’t surprise many readers who live by the Golden Rule and generally attempt to anchor our happiness in ways we can contribute to the lives of others. But the UBC study is part of a broader idea that can help us deepen our commitment to these values during the busy holiday season and beyond.
Two students at the university have started a Random Acts of Kindness Club to strengthen that kindness is a daily habit. So far, the group has created public displays of inspirational and practical messages encouraging the community to care for their emotional health. Simple acts of kindness, members say, are benefiting themselves as well as making a difference in the broader community.
Elizabeth Dunn, the professor of psychology who led the research study, added that regularly practicing kindness to others can help us with another kindness habit, one that is often more challenging—kindness to ourselves. She said, “The form of compassion that is perhaps most beneficial for ourselves is really all about self-kindness…that same sort of gentle compassion that we would extend to a treasured friend or maybe a younger person in our life that we care about.”
1. The text is especially helpful for those who care about_________.A.making more friends in life. |
B.sharing joy with loved ones. |
C.concerning about emotional health. |
D.forming habits to increase daily happiness. |
A.It focuses on college students’ living habits. |
B.Its conclusion has caused heated discussion. |
C.It offers participants advice on mental health. |
D.Its purpose remains secret to the participants. |
A.By displaying some messages. | B.By observing the Golden Rule. |
C.By donating money to others. | D.By giving inspirational lectures. |
A.Skeptical. | B.Supportive. |
C.Conservative. | D.Tolerant. |
【推荐1】With the outbreak of the COVID-19, multiple kinds of protective medical equipment, such as disposable(一次性的)masks, have been consumed. Market research indicates a sharp increase rate of 53% in the mask market alone. People often use these types of protective equipment and then throw them without thinking of the consequences, both on the ecosystem and human beings.
Disposable surgical masks are severely affecting the ecosystem. When improperly-handled masks enter the water system, they break up into smaller pieces. Complete masks can trap marine animals, resulting in their impaired mobility and even death. Meanwhile, the poisonous plastic particles will cause marine animals to be poisoned to death or weakness when they consume plastic. Furthermore, these harmful pollutants can severely affect reproduction, growth, and the development of the young. Just like their effects on marine animals, these pollutants can also contribute to severe harm in human bodies, especially in the neuron system. Exposure to micro plastics may cause particle poisoning, cellular damage and neuro-degenerative (神经退化的) diseases like Alzheimer’s disease(阿尔茨海默症).
Despite the potential harm to the ocean system and human neuron system, improperly-handled disposable masks will likely become a dangerous public health threat under the environment of a global pandemic. Instead of helping us fight against the COVID-19, to some extent, micro plastic pollution also causes the potential risk of speeding up the spread of the virus. Micro plastic particles in the ocean can be mixed up with water vapour to form aerosols in the atmosphere because they are small enough to enter the water cycle, where they are transferred from the marine system to the atmosphere in vast amounts and become a source for the disease COVID-19. thus causing the virus to speed up the spread of the global pandemic.
Humans will eventually suffer from the wrongdoing in the ocean systems because humans are nothing but temporary residents of the planet. Just like what the famous English anthropologist, Jane Goodall, has said, “Every individual matters. Every individual makes a difference.”
1. The underlined word “impaired” in paragraph 2 probably means“_________”.A.strengthened | B.damaged |
C.completed | D.influenced |
A.the impact on marine lives’ reproduction, growth and weakness |
B.the destruction to human’s neuron system, cellular system |
C.the huge economic loss for people living near the sea |
D.the great burden of micro plastic particles on ecosystem |
A.to describe the negative effects of disposed masks on nature and human beings. |
B.to advise readers to deal with the improperly-handled masks. |
C.how the improperly-handled masks help spread the virus. |
D.how to deal with the virus. |
A.To explain a serious phenomenon caused by the virus. |
B.To advocate a proper solution to solving the disposable masks. |
C.To compare the sufferings between marine animals and human beings. |
D.To analyze the harmful results of the improperly-handled masks. |
Hadrian’s Wall was built, beginning in 122 AD, to keep Roman Britain safe from attacks from the Picts. The wall, starting from the North Sea to the Irish Sea (from the Tyne to the Solway), is about 73 miles long, 10 feet wide, and 15 feet high. In addition to the wall, the Romans built a system of small forts (堡垒) housing up to 60 men every Roman mile along its whole length, with e towers very 1/3 Roman mile. 16 larger forts holding from 500 to 1000 soldiers were built into the wall, with large gates on the north face.
Israeli West Bank barrier
The Israeli West Bank barrier is a barrier under construction by the State of Israel along and within the West Bank. Upon completion, the barrier’s total length will be nearly 700 kilometers. The barrier is built mainly in the West Bank.
The Berlin Wall
The Berlin Wall was the physical boundary between West Germany and East Germany. The Berlin Wall was built in the dead of night in 1961 and for 28 years kept East Germans from escaping to the West. Its destruction (in 1989) was celebrated around the world.
Conwy’s Town Walls
Conwy’s Town Walls are an ancient defensive (防御的) project around the town of Conwy in North Wales. The walls were built between 1283 and 1287. They are 1.3 kilometers long and include 21 towers and three gate houses. The project was completed by large quantities of workers and cost around £15,000. Today the walls form part of the UNESCO world heritage site (联合国教科文组织世界文化遗产).
1. We know from the passage that Hadrian’s Wall_______.
A.is about 15 feet wide |
B.has about 60 small forts |
C.is seen from the Tyne to the North Sea |
D.has 16 larger forts built into it |
A.is a barrier being built by the Israeli state |
B.is built completely in the West Bank |
C.once made Israel separated |
D.has a length of over 700 kilometers |
A.the Israeli West Bank barrier |
B.the Berlin Wall |
C.Conwy’s Town Walls |
D.Hadrian’s Wall |
A.have 21 gatehouses |
B.were built in the twelfth century |
C.were built for the purpose of defense |
D.will soon become a UNSCO world heritage site |
A.They have the same length |
B.They were built in the same age |
C.They have towers on their walls. |
D.They cost a huge amount of money |
【推荐3】Have you ever had the feeling that you can’t think when there is too much noise around Did you ever think a fish could experience that feeling too? A recent published paper, combined over10,000 scientific papers, confirms that undersea life knows that exact same feeling, more often than not. Anthropogentic ocean noise, also known as underwater noise pollution, has created a huge impact on sea life due to “human-caused” activity within and neighboring our oceans.
The film Finding Nemo educated us about the ocean, and specifically within the ordinary world of a clown fish. A fact many may not know is that clown fish spend the first part of their lives as larvae (幼虫),moving slowly with the current of the ocean until they become strong enough to swim against it. Once they are powerful and strong, they head home in sheltered coral reefs. There is only one drawback—the fish can’t physically see the reef, but they can hear it. The only problem is, if they can’t hear it, will they ever make it home?
Our ocean noise, such as cargo ships, ship and boat propellers (螺旋桨),surfing, deep sea mining, etc. are causing destruction of sea life. Some researches found that sound is the sensory signal that travels the farthest through the ocean. The ocean noise drowns out the natural soundscapes, putting sea life under great stress. Altogether, this stress then affects their general health, disturb their behavior, reproduction and, in extreme cases causes death. Marine life can adapt to noise pollution, however, only if they can escape it. This only causes further complications of straying(使偏离)species from their traditional breeding regions or separating them from their families.
Now, what if we told you there is already a solution? Multiple ways, ideas and designs are currently in the works or already exist to remove the damage of the ocean noise. As the previous research explains, from wind-powered ships to noise-reducing propellers, a great many solutions are already available and in some cases, cost-effective. The authors of the paper hope it will catch the attention form the society.
1. What does the underlined word “Anthropogentic” probably mean?A.Produced by nature. |
B.Caused by ocean lives. |
C.Related to human beings. |
D.Made by underwater activities. |
A.educate us to protect sea-life |
B.introduce the film Finding Nemo |
C.illustrate the harmful effect of ocean noise |
D.show how terrible their living conditions are |
A.The noise control techniques. |
B.The attention from the society. |
C.The application of relevant laws. |
D.The restriction of human activities. |
A.Narrative and serious. | B.Persuasive and critical. |
C.Descriptive and positive. | D.Informative and objective. |