Thereisnodoubtthatleadingalow-carbonlifestyleisapopular...

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There is no doubt that leading a low-carbon lifestyle is a popular trend in the modern society, where a considerable number of individuals begin to undertake the responsibility to protect the environment．One of my Chinadialogue colleagues in Beijing recently bought a Philips energy-saving light Bulb to replace a standard one．He was happy with his choice．It may have cost 30 yuan （just under US$4．50）—ten times the price of a filament （灯丝） bulb—but he wanted to save energy as part of his low-carbon lifestyle．And according to the shopkeeper, he would save, in the long run, much more than the 30 yuan he was spending．

Yet only one month later, his expensive light bulb blew up, before he had saved even a small part of the purchase price．Will he stick to his high-cost, low-carbon lifestyle?

China’s environmental organizations have started to advocate low-carbon lifestyles and the decrease of carbon footprints to help fight against climate change．But they have overlooked one fact: in China, low-carbon living comes at a high cost．

It means buying energy-saving bulbs and appliances, and environmentally friendly building materials and daily goods．Cost can no longer be the only standard for purchases．An energy-saving and environmentally friendly product is more expensive than a standard alternative—whether it’s a simple light bulb or the house it shines．For average consumers, even buying an ordinary house is a huge burden．How can we persuade ordinary people to choose an energy-saving residence? This is not a trend they can afford to follow; perhaps this fashion is only for the rich．

Most consumers today do not cause huge carbon dioxide （CO2） emissions．Their responsibility lies not in choosing a low-carbon lifestyle today, but in avoiding a high-carbon life in the future．The principle of “common but differentiated （可区分的）responsibility” —a basis of sustainable（可持续的）development—can be applied here as well．

In China, low-carbon living is still resisted by a lack of social infrastructure （基础设施）．Even if your salary allows you to make that choice, nobody is there to help you accomplish it．Many so-called energy-saving buildings are even more energy-hungry than the average home．

27．What may probably be the best title of this passage?

A．To purchase a cheap bulb—your wise alternative

B．To live a low-carbon lifestyle—a promising but difficult purpose

C．To choose an energy-saving residence—a must of your life

D．To live a low-carbon lifestyle—each citizen’s responsibility

28．Why did the writer’s colleague get an energy-saving light bulb?

A．He wanted to save some money．

B．He was asked to do so by some organizations．

C．He wanted to try living his low-carbon lifestyle．

D．He wanted to use a more powerful light bulb．

29．We can infer from the passage that ________．

A．it’s difficult for most Chinese to try to live a low-carbon lifestyle