New energy cars account for 20 percent of all the car sales by 2025.（)

carbon “footprint”.That footprint reflects the amount of carbon dioxide that is emitted(排放)into the atmosphere as a result of someone’s daily activities.Carbon footprints tend to be low for city dwellers(城镇居民).Living in a suburb outside a city, however, can turn that footprint into a bootprint.

Energy researchers Christopher Jones and Daniel Kammen calculated carbon footprints for people in every zip code across the United States.People living in city centers had small footprints, the researchers found.“It is much easier to have a low carbon impact if your home is close to where you work, shop and play,” explains Jones.Living within walking or biking distance cuts back on the amount of carbon dioxide associated with moving people by cars.And cities with extensive bus and subway networks allow people to travel great distances while keeping releases of climate-altering greenhouse gases low.

Not everyone can afford to live in the city, however.And not everyone wants to.Rings of suburbs have popped up around major cities across the world.Suburbs offer more space, allowing people to build larger homes.Suburbs may offer better schools for a family’s kids.But those homes are typically well beyond walking distance from where their owners work, play or learn.So people who live in suburbs often drive long distances.

The new findings are an important contribution to climate research, says Matthew Kahn, an environmental economist at the University of California, who was not involved with the study.Kahn would like to see the analysis applied to other parts of the world — Europe, India and China, for instance.That would give scientists a better feel for how culture might mix with location to influence our carbon footprints.

21.“Footprint” refers to the amount of carbon dioxide released by ______.

A.an industry

B.an individual

C.a region

D.a country

22.What is the new finding concerning the footprints of people living in cities and those living in suburbs？()

A.The two are not at all comparable

B.The former are higher than the latter

C.The latter are higher than the former

D.The former are similar to the latter

23.What is the key factor mentioned to explain the new findings？()

A.Distance travelled by cars

B.Spending habits

C.Size of families

D.Attitude towards energy saving

24.What does Matthew Kahn think of the new findings？()

A.He is confused by the mixed messages

B.He thinks highly of them

C.He can easily understand them

D.He doubts their validity

25.What is the purpose of the author in writing the passage？()

A.To call on people to reduce carbon footprints

B.To offer tips on how to live a low-carbon life

C.To clear up misunderstandings about carbon emission

D.To introduce the research on carbon footprints

ve million dollars in money and investments to help the poor. The company says the effort involves using the power of information and technology to help people improve their lives. Aleem Walji works for Google.org -- the part of the company that gives money to good causes. He said the company’s first project will help identify where infectious (传染性的) diseases are developing. In Southeast Asia and Africa, for example, Google.org will work with partners to strengthen early-warning systems and take action against growing health threats. Google.org’s second project will invest in ways to help small and medium-sized businesses grow. Walji says microfinance (小额信贷) is generally small, short-term loans that create few jobs. Instead, he says Google.org wants to develop ways to bring investors and business owners together to create jobs and improve economic growth. Google.org will also give money to help two climate-change programs announced earlier this year. One of these programs studies ways to make renewable (再生的) energy less costly than coal-based energy. The other is examining the efforts being made to increase the use of electric cars. The creators of Google have promised to give Google.org about one percent of company profits and one percent of its total stock value every year. Aleem Walji says this amount may increase in the future. 问题：The purpose of Google’s investments is to ________.A.help poor people

B.develop new technology

C.expand its own business

D.increase the power of information

According to Aleem Walji, the company’s first project is to ________.A.set up a new system to warn people of infectious diseases

B.find out where infectious diseases develop

C.identify the causes of infectious diseases

D.cure patients of infectious diseases

What kind of businesses will benefit from Google.org’s second project？A.large enterprises

B.cross-national companies

C.foreign-funded corporations

D.small and medium-sized businesses

From the fourth paragraph, we learn that Google’s money is also invested to help ________.A.start more research programs

B.make more advanced electric cars

C.develop renewable and coal-based energy

D.conduct studies related to climate changes

From the last paragraph we learn that the investments by Google.org come from ________.A.Google’s profits and stock value

B.some international IT companies

C.the company’s own interests

D.local commercial banks

请帮忙给出每个问题的正确答案和分析，谢谢！

看资料，回答题

The Impossibility of Rapid Energy Transitions

[ A ] Politicians are fond of promising rapid energy transitions．Whether it is a transition from imported to domestic oil or from coal-powered electricity production to natural-gas power plants， politicians love to talk big．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．No matter how hard you try， you can"t turn something that large on a dime （10美分硬币 ）， or even a few thousand dimes．

[ B ] In physics， moving objects have two characteristics relevant to understanding the dynamics of energy systems: inertia and momentum．Inertia is the resistance of objects to efforts to change their state of motion．If you try to push a boulder （大圆石 ）， it pushes you back．Once you have started the boulder rolling， it develops momentum， which is defined by its mass and velocity．Momentum is said to be "conserved，" that is， once you build it up， it has to go somewhere．So a heavy object， like a football player moving at a high speed， has a lot of momentum-that is， once he is moving， it is hard to change his state of motion．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．

[ C ] But there are other kinds of momentum as well．After all， we don"t speak only of objects or people as having momentum; we speak of entire systems having momentum．Whether it"s a sports team or a presidential campaign， everybody relishes having the big momentum， because it makes them harder to stop or change direction．

[ D ] One kind of momentum is technological momentum．When a technology is deployed， its impacts reach far beyond itself．Consider the incandescent （白炽灯的） bulb， an object currently hated by many environmentalists and energy-efficiency advocates．The incandescent light bulb， invented by Thomas Edison， which came to be the symbol of inspiration， has been developed into hundreds， if not thousands， of forms．Today， a visit to a lighting store reveals a stunning array of choices．There are standard-shaped bulbs， flame-shaped bulbs， colored globe-shaped bulbs， and more．It is quite easy， with all that choice， to change a light bulb．

[ E ] But the momentum of incandescent lighting does not stop there．All of those specialized bulbs ledto the building of specialized light fixtures， from the desk lamp you study by， to the ugly but beloved hand-painted Chinese lamp you inherited from your grandmother， to the ceiling fixture in your closet， to the light in your oven or refrigerator， and to the light that the dentist points at you．It is easy to change a light bulb， sure， but it is harder to change the bulb and its fixture．

[ F ] And there is more to the story， because not only are the devices that house incandescent bulbs shaped to their underlying characteristics， but rooms and entire buildings have been designed in accordance with how incandescent lighting reflects off walls and windows．

[ G ] As lighting expert Howard Brandston points out， “ Generally， there are no bad light sources， only bad applications．" There are some very commendable characteristics of the CFL [ compact fluorescent （荧光的） light bulb ]， yet the selection of any light source remains inseparable from the luminaire （照明装置 ） that houses it， along with the space in which both are installed， and lighting requirements that need to be satisfied．The lamp， the fixture， and the room， all three must work in concert for the true benefits of end-users．If the CFL should be used for lighting a particular space， or an object within that space， the fixture must be designed to work with that lamp， and that fixture with the room．It is a symbiotic （共生的 ） relationship．A CFL cannot be simply installed in an incandescent fixture and then expected to produce a visual appearance that is more than washed out， foggy， and dim．The whole fixture must be replaced-light source and luminaire-and this is never an inexpensive proposition．

[ H ] And Brandston knows a thing or two about lighting， being the man who illuminated the Statue of Liberty．

[ I ]Another type of momentum we have to think about when planning for changes in our energy systems is labor-pool momentum．It is one thing to say that we are going to shift 30 percent of our electricity supply from， say， coal to nuclear power in 20 years．But it is another thing to have a supply of trained talent that could let you carry out this promise．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 time．And not only do our prospective new energy workers have to be trained， they have to be trained in the right sequence．One needs the designers， and perhaps the regulators， before the builders and operators， and each group of workers in training has to know there is work waiting beyond graduation．In some cases， colleges and universities might have to change their training programs，

adding another layer of difficulty．

[ J ] By far the biggest type of momentum that comes into play when it comes to changing our energy systems is economic momentum．The major components of our energy systems， such as fuel production， refining， electrical generation and distribution， are costly installations that have lengthy life spans．They have to operate for long periods of time before the costs of development have been recovered．When investors put up money to build， say， a nuclear power plant， they expect to earn that money back over the planned life of the plant， which is typically between 40and 60 years．Some coal power plants in the United States have operated for more than 70 years!

The oldest continuously operated commercial hydro-electric plant in the United States is on New York"s Hudson River， and it went into commercial service in 1898．

[ K ] 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 their progress could be accelerated in an unprecedented manner．"

[ L ] 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．

Not only moving objects and people but all systems have momentum．

查看材料

earer than ever that the future belongs to renewable sources such as wind and solar. The move to renewables is picking up momentum around the world： They now account for more than half of new power sources going on line.

Some growth stems from a commitment by governments and farsighted businesses to fund cleaner energy sources. But increasingly the story is about the plummeting prices of renewables， especially wind and solar. The cost of solar panels has dropped by 80 percent and the cost of wind turbines by close to one-third in the past eight years.

In many parts of the world renewable energy is already a principal energy source. In Scotland， for example， wind turbines provide enough electricity to power 95 percent of homes. While the rest of the world takes the lead， notably China and Europe， the United States is also seeing a remarkable shift. 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.

President Trump has underlined fossil fuels—especially coal—as the path to economic growth. In a recent speech in Iowa， he dismissed wind power as an unreliable energy source. 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 their data centers.

The question “What happens when the wind doesn’t blow or the sun doesn’t shine？” has provided a quick put-down for skeptics. But a boost in the storage capacity of batteries is making their ability to keep power flowing around the clock more likely.

The advance is driven in part by vehicle manufacturers， who are placing big bets on battery-powered electric vehicles. Although electric cars are still a rarity on roads now， this massive investment could change the picture rapidly in coming years.

While there’s a long way to go， the trend lines for renewables are spiking. 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.

The word “plummeting”（Line 3， Para. 2） is closest in meaning to .

A.stabilizing

B.changing

C.falling

D.rising

It can be inferred from the last paragraph that renewable energy____.A.will bring the USA closer to other countries.

B.will accelerate global environmental change.

C.is not really encouraged by the USA government.

D.is not competitive enough with regard to its cost.

According to Paragraph 3， the use of renewable energy in America .A.is progressing notably

B.is as extensive as in Europe

C.faces many challenges

D.has proved to be impractical

Which of the following is true about clean energy according to Paragraphs 5&6？A.Its application has boosted battery storage.

B.It is commonly used in car manufacturing.

C.Its continuous supply is becoming a reality.

D.Its sustainable exploitation will remain difficult.

It can be learned that in Iowa， .A.wind is a widely used energy source

B.wind energy has replaced fossil fuels

C.tech giants are investing in clean energy

D.there is a shortage of clean energy supply

请帮忙给出每个问题的正确答案和分析，谢谢！

After the new technique was introduced, the factory produced ()cars in 2002 as in the year before.

A、as twice many

B、as many twice

C、twice as many

D、as twice as many

A.Because car is expensive in New York City.

B.Because traffic is bad in New York City.

C.Because there is no place to park cars in New York City.

D.Because the number of cars is limited by government.

le in the United States. Some people go on diets. This means they eat less of certain foods, especially fats and sugars. Other people exercise with special equipment, take diet pills, or even have surgery. Losing weight is hard work, and it can also cost a lot of money. So why do so many people in the United States want to lose weight？

Many people in the United States worry about not looking young and attractive. For many people, looking good also means being thin. Other people worry about their health. Many doctors say being overweight is not healthy. But are Americans really fat？

Almost 30 million Americans weigh at least 20 percent more than their ideal weight. In fact, the United States is the most overweight country in the world. "The stored fat of adult Americans weighs 2. 3 trillion pounds," says University of Massachusetts anthropologist(人类学家) George Armelagos. He says burning off that stored energy would produce enough power for 900,000 cars to go 12,000 miles.

Losing weight is hard work, but most people want to find a fast and easy way to take off fat. Bookstores sell lots of diet books. These books tell readers how to lose weight. Each year, dozens of new books like these are written. Each one boasts to help people to get rid of fat.

Which of the following is NOT mentioned as a way of losing weight？

A．To eat less fats and sugars.

B．To take much exercise.

C．To have surgery.

D．To work hard.

The town of Brighttown in Euraria has a mayor (elected every five years by the people in the town) who is responsible for, amongst other things, the transport policy of the town.

A year ago, the mayor (acting as project sponsor) instigated a ‘traffic lite’ project to reduce traffic congestion at traffic lights in the town. Rather than relying on fixed timings, he suggested that a system should be implemented which made the traffic lights sensitive to traffic flow. So, if a queue built up, then the lights would automatically change to green (go). The mayor suggested that this would have a number of benefits. Firstly, it would reduce harmful emissions at the areas near traffic lights and, secondly, it would improve the journey times for all vehicles, leading to drivers ‘being less stressed’. He also cited evidence from cities overseas where predictable journey times had been attractive to flexible companies who could set themselves up anywhere in the country. He felt that the new system would attract such companies to the town.

The Eurarian government has a transport regulation agency called OfRoad. Part of OfRoad’s responsibilities is to monitor transport investments and it was originally critical of the Brighttown ‘traffic lite’ project because the project’s benefits were intangible and lacked credibility. The business case did not include a quantitative cost/benefit analysis. OfRoad has itself published a benefits management process which classifies benefits in the following way.

Financial: A financial benefit can be confidently allocated in advance of the project. Thus if the investment will save $90,000 per year in staff costs then this is a financial benefit.

Quantifiable: A quantifiable benefit is a benefit where there is sufficient credible evidence to suggest, in advance, how much benefit will result from the project. This benefit may be financial or non-financial. For example, energy savings from a new building might be credibly predicted in advance. However, the exact amount of savings cannot be accurately forecast.

Measurable benefit: A measurable benefit is a benefit which can only be confidently assessed post-implementation, and so cannot be reliably predicted in advance. Increase in sales from a particular initiative is an example of a measurable benefit. Measurable benefits may either be financial or non-financial.

Observable benefit: An observable benefit is a benefit which a specific individual or group will decide, using agreed criteria, has been realised or not. Such benefits are usually non-financial. Improved staff morale might be an example of an observable benefit.

One month ago, the mayoral elections saw the election of a new mayor with a completely distinct transport policy with different objectives. She wishes to address traffic congestion by attracting commuters away from their cars and onto public transport. Part of her policy is a traffic light system which gives priority to buses. The town council owns the buses which operate in the town and they have invested heavily in buses which are comfortable and have significantly lower emissions than the conventional cars used by most people in the town. The new mayor wishes to improve the frequency, punctuality and convenience of these buses, so that they tempt people away from using their cars. This will require more buses and more bus crews, a requirement which the mayor presents as ‘being good for the unemployment rate in this town’. It will also help the bus service meet the punctuality service level which it published three years ago, but has never yet met. ‘A reduction in cars and an increase in buses will help us meet our target’, the mayor claims.

The mayor has also suggested a number of initiatives to discourage people from taking their cars into the town. She intends to sell two car parks for housing land (raising $325,000) and this will reduce car park capacity from 1,000 to 800 car spaces per day. She also intends to raise the daily parking fee from $3 to $4. Car park occupancy currently stands at 95% (it is difficult to achieve 100% for technical reasons) and the same occupancy rate is expected when the car park capacity is reduced.

The new mayor believes that her policy signals the fact that Brighttown is serious about its green credentials. ‘This’, she says, ‘will attract green consumers to come and live in our town and green companies to set up here. These companies and consumers will bring great benefit to our community.’ To emphasise this, she has set up a Go Green team to encourage green initiatives in the town.

The ‘traffic lite’ project to tackle congestion proposed by the former mayor is still in the development stage. The new mayor believes that this project can be modified to deliver her vision and still be ready on the date promised by her predecessor.

Required:

(a) A ‘terms of reference’ (project initiation document, project charter) was developed for the ‘traffic lite’ project to reduce traffic congestion.

Discuss what changes will have to be made to this ‘terms of reference’ (project initiation document, project charter) to reflect the new mayor’s vision of the project. (5 marks)

(b) The new mayor wishes to re-define the business case for the project, using the benefits categorisation suggested by OfRoad. Identify costs and benefits for the revised project, classifying each benefit using the guidance provided by OfRoad. (14 marks)

(c) Stakeholder management is the prime responsibility of the project manager.

Discuss the appropriate management of each of the following three stakeholders identified in the revised (modified) project.

(i) The new mayor;

(ii) OfRoad;

(iii) A private motorist in Brighttown who uses his vehicle to commute to his job in the town. (6 marks)

A．Nuclear power should be banned as an energy source in our country．

B．I believe that it is possible that the increasing number of cars could have a negative influence on traffiC．

C．I don’t like to take courses that are held in big lecture classes at this school．

D．High school athletes shouldn’t have to maintain a “B” or better grade-point average in every subject to participate in school sports, and the value of sports for some students is often overlookeD．

to consideration when working out the cost.(英译汉)