重庆师范大学考研真题 英语专业(12)

招收专业：英语语言文学、外国语言学及应用语言学研究方向：英语语言学、文体学、英美文学、英语国家文化研究、英语教学理论及应用、现代英语研究、社会语言学、翻译理论

And cleantech is on track to be the dominant force in venture capital investments over the next few years, supplanting biotechnology and software. Venture capitalists have poured $8.7 billion into energy-related startups in the U.S. since 2006.

That pales in comparison with the dot-com boom, when venture cash sometimes topped $10 billion in a single quarter. But the momentum surrounding clean energy is reminiscent of the Internet's early days. Among the similarities: Although big projects are still dominated by large companies, the scale of the challenges requires innovation by smaller firms that hope to be tomorrow's giants.

"Ultimately IBM and AT&T didn't build the Internet. It was built by Silicon Valley startups," says Bob

Metcalfe, an Internet pioneer who now invests in energy projects with Polaris Venture Partners. "And energy is going to be solved by entrepreneurial activity."

The action is happening at companies like GreatPoint Energy in Cambridge, Mass., which has developed a technique for turning coal into natural gas more cheaply and efficiently than previous methods.

GreatPoint plans to break ground next year on a power plant in Houston that will cost $800 million and create thousands of construction jobs, says its CEO, Andrew Perlman. Dow Chemical Co. and energy giants AES Corp., Suncor Energy Inc. and Peabody Energy are all GreatPoint investors.

"The opportunities," Perlman says, "are staggering."

A123 Systems, a Watertown, Mass., maker of lithium-ion batteries for electric cars, had one of the most lucrative public stock offerings this year, raising $437.5 million. Its stock price jumped more than 50 percent on the first day of trading in September, with investors willing to overlook that the company has yet to make money.

The Obama administration's promises about cleantech funding have galvanized the industry, reassuring

entrepreneurs that they will have paying customers. The administration has said it will focus on putting more hybrid cars on the road, boosting the amount of electricity from renewable sources and investing in ways to cut pollution from coal.

One target is "smart grids." As utilities install digital meters in homes and Americans buy appliances that can communicate with the electric system, individual power consumption can be monitored more closely. People could be cued to dial down appliances such as refrigerators and air conditioners when electricity is in highest demand. Such fine-tuning in millions of homes can reduce the need for new power plants.

At Tendril Networks Inc. of Boulder, Colo., which makes software that links utilities to smart-grid devices in homes, the staff has tripled over the past five months to 90. CEO Adrian Tuck says Tendril could grow even more if some of the $4.5 billion earmarked for smart grids in this year's federal stimulus goes to Tendril's clients.

"What we're about to see is every bit as big as the telecom revolution that gave birth to the Internet and cell phones," Tuck says. "It's going to create as many jobs and as much wealth for this country, if they get it right. Big, Google-sized companies are going to be born in this era, and we hope to be one of them."