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首页英语词典energyenergy考试真题

energy

英 ['enədʒɪ] 美['ɛnɚdʒi]

英英释义同义词辨析考试真题实用场景例句

n. [物] 能量；精力；活力；精神

考试真题

Leah easily could have fallen into a trap of feeling content; instead, her energy sparked a period of experimentation and renewal.

It took a lot of time and energy to keep up with everyone’s status updates.

So, Soupios explains, it is not worth it to waste our physical, intellectual and spiritual energy worrying about things that are beyond our control.

It has given rise to unrealistic expectationsIt saves their energy.

He looked up at his father, his features overflowing with energy and delight.

"The body uses a lot of energy stores for growth and repair through the night," explains diet specialist Sarah Elder.

A plant uses only a small part of the energy produced by that process.

Among common kitchen appliances used for cooking, microwaves are the most energy efficient, followed by a stove and finally a standard oven.

As solar panels get cheaper, the world is likely to see more skyscrapers covered in solar panels, collecting energy much like trees do.

Called "the Wattway," the roads will be built through joint efforts with the French road-building company Colas and the National Institute of Solar Energy.

Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient, but still carry great cost.

Eating a balanced breakfast helps to up our energy, as well as make up for protein and calcium used throughout the night.

Further, the energy used by microwaves is lower than any other from of cooking.

However, David Reay, professor of carbon management, argues that, although microwaves use a great deal of energy, their emissions are minor compared to those from cars.

Imagine a world where building the tallest skyscraper wasn't a race of height, but rather one to collect the most solar energy.

It captures the energy which plants produce during photosynthesis, a process of converting sunlight into energy.

It took a lot of time and energy to keep up with everyone's status updates.

Last week, France announced that the country will pave 621 miles of road with solar panels over the next five years, with the goal of providing cheap, renewable energy to five million people.

Many scientists have studied the green sea slugs to confirm that they are actually able to create energy from sunlight.

One of the student inventors, Camellia Rupcich, says the device changes the energy released from the plant into low-level power to charge phones.

So large is the Pacific, covering 30% of the planet's surface, that the specific energy generated by its warming is enough to touch off a series of weather changes around the world.

The sea slugs are so good at gathering energy from the sun that they can live up to nine months without having to eat any food.

The slugs can manufacture chlorophyll, the green pigment in plants that captures energy from sunlight, and hold these genes within their body.

Their babies retain the ability to produce their own chlorophyll, though they can't generate energy from sunlight until they've eaten enough algae to steal the necessary genes, which they can't yet produce on their own.

They are used to create some of the energy used by the insurance company inside.

To prepare for this before winter, these animals eat extra food to become fat, which gives them the energy they need while they sleep.

When we think of animals and plants, we have a pretty good way of dividing them into two distinct groups: one converts sunlight into energy and the other has to eat food to make its energy.

The current low fossil fuel price environment will thus certainly delay the energy transition from fossil fuel to clean energy sources.

Renewables account for only a small share of global primary energy consumption, which is still dominated by fossil fuels—30% each for coal and oil, 25% for natural gas.

Policymakers should not allow low energy prices to derail the clean energy transition.

Notwithstanding important recent progress in developing renewable fuel sources, low fossil fuel prices could discourage further innovation in, and adoption of, cleaner energy technologies.

If not corrected by the appropriate carbon price, low fossil fuel prices are not accurately signaling to markets the true social profitability of clean energy.

Fossil fuels remain the major source of primary energy consumption in today's world.

For example, the United Arab Emirates has endorsed an ambitious target to draw 24% of its primary energy consumption from renewable sources by 2021.

Even major fossil fuel exporting countries have great potential to develop renewable energies.

Coal and natural gas are mainly used for electricity generation, whereas oil is used mostly to power transportation, yet the prices of all these energy sources are linked.

By raising relative demand for clean energy sources, a carbon price would also help align the market return to clean-energy innovation with its social return, spurring the refinement of existing technologies and the development of new ones.

But renewable energy will have to displace fossil fuels to a much greater extent in the future to avoid unacceptable climate risks.

The roots of his speech, given in March at the roundtable meeting of environment and energy ministers from the G20 group of nations, stretch back to 1972, and the United Nations Conference on the Human Environment in Stockholm.

In the past, the young have eagerly participated in national service and civic affairs, often with lots of energy and idealism.

What happens to the centralized electric grid, which took decades and billions of dollars to build, as more and more people become prosumers, who produce and consume their own energy on-site?No one knows which – if any – battery technology will ultimately dominate, but one thing remains clear: The future of energy is in how we store it.

Today, energy storage is a $33 billion global industry that generates nearly 100 gigawatt-hours of electricity per year.

Today's battery breakthroughs come as the world looks to expand modern energy access to the billion or so people without it, while also cutting back on fuels that warm the planet.

The demand for energy resources may compel renegotiation of Antarctica's treaties before their expiration.

Of the 300 employees participating in the study, those who experienced high levels of telepressure were more likely to agree with statements assessing burnout, like I've no energy for going to work in the morning, and to report feeling fatigued and unfocused.

It is the direction energy development should follow.

Even utility companies, which have long viewed batteries and alternative forms of energy as a threat, are learning to embrace the technologies as enabling rather than disrupting.

Dr.Donald Sadoway at MIT started his own battery company with the hope of changing the world's energy future.

But Sadoway isn't alone in trumpeting energy storage as a missing link to a cleaner, more efficient, and more equitable energy future.

And even before then, scholars warn, the demand for resources in an energy-hungry world could raise pressure to renegotiate Antarctica's treaties, possibly allowing more commercial endeavours here well before the prohibitions against them expire.

When you hear people speaking of making a rapid transition toward any type of energy, whether it is a switch from coal to nuclear power, or a switch from gasoline-powered cars to electric cars, or even a switch from an incandescent to a fluorescent light, understanding energy system inertia and momentum can help you decide whether their plans are feasible.

Unfortunately for them ( ' , and often the taxpayers), our energy systems are a bit like an aircraft carrier: they are unbelievably expensive, they are built to last for a very long time, they have a huge amount of inertia ( ' , meaning it takes a lot of energy to set them moving), and they have a lot of momentum once they are set in motion.

The major components of our energy systems, such as fuel production, refining, electrical generation and distribution, are costly installation that have lengthy life spans.

The biggest obstacle to energy transition is that the present energy system is too expensive to replace.

That is because the engineers, designers, regulators, operators, and all of the other skilled people needed for the new energy industry are specialists who have to be trained first ( ' , or retrained, if they are the ones being laid off in some related industry), and education, like any other complicated endeavor, takes times.

Politicians are fond of promising rapid energy transitions.

Physical characteristics of moving objects help explain the dynamics of energy systems.

Our society depends on them being able to make critical decisions about their own medical treatment say, or what we must do about global energy needs and demands.

Other studies show that simply providing the facility for people to compare their energy use with the local average is enough to cause them to modify their behaviour.

Instead of normalising the undesirable behaviour, the message needs to marginalise it, for example, by stating that if even one person buys yet another SUV, it reduces our ability to be energy-independent.

In the US, the House of Representatives Science Committee has approved a bill allocating $10 million a year to studying energy-related behaviour.

In physics, moving objects have two characteristics relevant to understanding the dynamics of energy systems: inertia and momentum.

If you want to change his course, you have only a few choices: you can stop him, transferring ( ' , possibly painfully) some of his kinetic energy ( ' , 动能 ) to your own body, or you can approach alongside and slowly apply pressure to gradually alter his course.

Energy.systems, like an aircraft carrier set in motion, have huge momentum.

Efforts to accelerate the current energy transitions didn't succeed as expected.

Consider the incandescent ( ' , 白炽灯 ) bulb, an object currently hated by many environmentalists and energy-efficiency advocates.

Cialdini conducted a study in San Diego in which coat hangers bearing messages about saving energy were hung on people's doors.

Changing the current energy system requires the systematic training of professionals and skilled labor.

By far the biggest type of momentum that comes into play when it comes to changing our energy systems is economic momentum.

Another type of momentum we have to think about when planning for changes in our energy systems is labor- pool momentum.

And not only do our prospective new energy workers have to be trained, they have to be trained in the right sequence.

All the forecasts, plans, and anticipations cited above have failed so miserably because their authors and promoters thought the transitions they hoped to implement would proceed unlike all previous energy transitions, and that their progress could be accelerated in an unprecedented manner.

Viewed from scientists’ standpoint, allthe energy contained in fuel either now or in the future becomes heat.

That’s energy in all forms--oil, gas, coal, nuclear, solar and even wind power.

Some of the heat is used directly or produces useful work; the rest is lost or rejected, radiated into the atmosphere from the engines, motors, boilers and all the energy-consuming machinery that makes American’s wheel go around.

If we could figure out how to improve the efficiency with which we use energy, we can do a lot of work with the energy that is available.

Every year, people in America use energy equal to over 30million barrels of oil each day.

Better design and wiseruser of both mass transit systems and private vehicles will playing an important part in helping America get more out of energy used fortransportation.

According to the Centre for Strategic and International Studies,about three quarter of energy we use to move things, including ourselves, accomplishes no useful work.

"Supplying power to trains in this way would offer the shortest distance from well to wheels," he says, "with the least amount of energy lost."

According to Harry Vallentine, a Canadian engineer who is researching modern steam technology, a special tank measuring 2 by 10 metres could store over 750 kilowatt hours of energy as high pressure steam, enough to pull a two-cart train for an hour or so.

Another team at Nagoya University in Japan has tested calcium compound as an energy storage material.

Another type of momentum we have to think about when planning for changes in our energy systems is labor-pool momentum.

As I said, we need to understand the best ways of avoiding climate change and this will involve a huge transition to low-carbon energy systems and the transition is a tremendous priority.

As Vaclav Smil points out, "All the forecasts, plans, and anticipations cited above have failed so miserably because their authors and promoters thought the transitions they hoped to implement would proceed unlike all previous energy transitions, and that

Cialdini conducted a study in San diego in which coat hangers bearing messages about saving energy were hung on people's doors.

Customers can bring shoes of any brand into an Adidas store to be shredded and turned into alternative fuels for energy creation instead of being burned as trash.

Energy to drive a steam locomotive can be stored in other materials besides water.

Extreme athletes expend lots of energy breaking down and repairing and building muscles.

For instance, there's a high energy cost in switching from a regular metabolism to an almost-no-water metabolism.

Gathering your resources to "try hard" requires burning energy in order to overcome your currently low arousal level.

He and other scientists say there are basically two options to replacing fossil fuels: generating energy with renewables or embracing nuclear power.

However, this is just the tip of the proverbial iceberg as smart buildings and even cities increasingly become the norm as leaders and business owners begin to wake up to the massive savings that technology can deliver through connected sensors and new fo

If you want to change his course, you have only a few choices: you can stop him, transferring possibly painfullysome of his kinetic energy to your own body, or toucan approach alongside and slowly apply pressure to gradually alter his course.

In physics, moving objects have two characteristics relevant to understanding the dynamics of energy systems: inertia and momentum .

Many made their way into medicines, intended as a kind of energy boost.

Of the 300 employees participating in the study, those who experienced high levels of telepressure were more likely to agree with statements assessing burnout, like "I've no energy for going to work in the morning", and to report feeling fatigued and unfo

Part of the reason this ban is being discussed and implemented is because energy officials see that they will not reach their emissions goals by 2050 if they do not eliminate a large portion of vehicle emissions.

Robots already save us time, money and energy.

Some people are too subordinate to others' opinions, too focused on decision consensus, too silent about their own point of view, too agreeable to take things on when they don't have time or energy.

That is because the engineers, designers, regulators, operators, and all of the other skilled people needed for the new energy industry are specialists who have to be trained first or retrained, if they are the ones being laid off in some related industry

The country is also planning to reduce its carbon footprint by 80-95% by 2050, sparking a shift to green energy in the country.

The idea that all energy and wealth comes from the sun really intrigued him He thought the shorter the distance between the sun and the end product, the higher the profit to the farmer.

The liquid is maintained above its melting point until steam is required, at which point the liquid is allowed to turn back into a solid, releasing its stored energy.

They might be more willing to offer career help, because your less famous school denotes that, like them, you are also full of energy and perseverance.

tim Joseph was fascinated by the notion that sunlight brings energy and wealth to mankind.

To recover the energy, the gas is fed back over the calcium oxide.

Today, energy storage is a $33 billion global industry that generates nearly 100 gigawatt-hours of electricity per year.

Today's battery breakthroughs come as the world looks to expand modern energy access to the billion or so people without it, while also cutting back on fuels that warm the planet.

Unfortunately for them and often the taxpayers, our energy systems are a bit like an aircraft carrier : they are unbelievably expensive, they are built to last for a very long time, they have a huge amount of inertia meaning it takes a lot of energy to se

We've talked recently about the importance of sustainable energy.

What happens to the centralized electric grid, which took decades and billions of dollars to build, as more and more people become "prosumers," who produce and consume their own energy on-site?

When heated, these materials turn from a solid into a liquid, absorbing energy as they change phase.

When you hear people speaking of making a rapid transition toward any type of energy, whether it is a switch from coal to nuclear power, or a switch from gasoline -powered cars to electric cars, or even a switch from an incandescent to a fluorescent light

According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions more than doubling during the 1992 to 2007 window.

Advanced lights, motors, and building designs have helped save a lot of energy and therefore prevented pollution.

Among the bag makers' arguments: many cities with bans still allow shoppers to purchase paper bags, which are easily recycled but require more energy to produce and transport.

And because the process of recycling steel is less polluting than making new steel, we've also achieved the following significant savings; in energy use—47% to 74%; in air pollution—85%; in water pollution—35%; in water use—40%.

But the most sensible form of adaptation is surely to adapt our energy systems to emit less carbon pollution.

But we do think that you can live a more powerful life when you devote some of your time and energy to something much larger than yourself.

By comParison, the brains of apes (类人猿) require only 8%of rest-time energy.

However, longer-lasting reusable bags often require more energy to make.

In modern man, the brain accounts for about 2-3%of total body weight but it consumes 25% of the body's energy when the body is at rest.

It's even harder to provides energy.

More wind power stations will spring up to meet the demand for clean energy.

No one will ever know what mix of talent, ambition, energy and luck made Dickens such a distinguished writer.

Our own experience working together on health, development, and energy the last twenty years has been one of the most rewarding parts of our lives.

Recycling plastics and aluminum, for instance, uses only 5% to 10% as much energy as producing new plastic or smelting aluminum.

Singing is a costly behaviour and it takes energy.

So by increasing their song output, there might be some costs of energy.

That's bad news for the environment – and our wallets – as these outdated devices consume much more energy than the news ones that do the same things.

The emotional, physical and mental energy mothers devote to their children can be never-ending, but children are also sources of great joy and happiness.

The fact is that a huge brain is a huge drain—consumption of energy—on the body.

There are energy savings to be made from all recyclable materials, sometimes huge savings.

They are potential powers we possess: energy, skill, sound judgment, creative ideas — even physical strength greater than most of US realize.

They found that more on demand environment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.

This method provided a readout for how home energy use has evolved since the early 1990s.

Today, there are galleries, studios, restaurants and newly built work spaces where neighbors share experiences, where there is renewed life and energy.

While clean energy is increasingly used in our daily life, global warning will continue for some decades after CO2 emissions peak.

The Bilski case involves a claimed patent on a method for hedging risk in the energy market.

The company, a major energy supplier in New England, provoked justified outrage in Vermont last week when it announced it was reneging on a longstanding commitment to abide by the strict nuclear regulations.

The idea is to force social scientists to integrate their work with other categories, including health and demographic change; food security; marine research and the bio-economy; clean, efficient energy; and inclusive, innovative and secure societies.

Stemming climate change, for example, is as much about changing consumption patterns and promoting tax acceptance as it is about developing clean energy.

She exhibits the idealism common to many advocates of sustainability, be it in food or in energy.

Boiling down an individual's output to simple metrics, such as number of publications or journal impacts, entails considerable savings in time, energy and ambiguity.

But that message did not play well with many in Iowa, where wind turbines dot the fields and provide 36 percent of the state's electricity generation – and where tech giants like Microsoft are being attracted by the availability of clean energy to power t

In a recent speech in Lowa, he dismissed wind power as an unreliable energy source.

In many parts of the world renewable energy is already a principal energy source.

In March, for the first time, wind and solar power accounted for more than 10 percent of the power generated in the US, reported the US Energy Information Administration.

Other birds flying in the up wash experience reduced drag, and spend less energy propelling themselves.

Rather than obsessing over the scale, turn your focus to how you look, feel how your clothes fit and your overall energy level.

since 1914, scientists have known that birds flying in formation—a V-shape —expend less energy.

So keep it simple: "Hi", "Hey" or "Hello"—do the best you can to gather all of the enthusiasm and energy you can, put on a big smile and say "Hi".

Some growth stems from a commitment by governments and farsighted businesses to fund cleaner energy sources.

The bilski case involves a claimed patent on a method for hedging risk in the energy market.

The pace of change in energy sources appears to be speeding up – perhaps just in time to have a meaningful effect in slowing climate change.

What Washington does – or doesn't do – to promote alternative energy may mean less and less at a time of a global shift in thought.

When the government talks about infrastructure contributing to the economy the focus is usually on roads, railways, broadband and energy.

While fossil fuels – coal, oil, gas – still generate roughly 85 percent of the world's energy supply, it's clearer than ever that the future belongs to renewable sources such as wind and solar.