阅读判断(第16～22题)
下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A；如果该句提供的是错误信息，请选择B；如果该句的信息文中没有提及，请选择C。
California Gives Green Light to Space Solar Power
Energy beamed down from space is one step closer to reality，now that California has given the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatt (兆瓦)of power beamed down from solar-power satellites beginning in 2016．But some major chal lenges will have to be overcomed if the technology is to be used widely．
A start-up company called Solaren is designing the satellites，which it says will use radio waves to beam energy down to a receiving station on Earth．
The attraction of collecting solar power in space is the almost uninterrupted sunshine available in eosynchronous(与地球同步的)orbit．Earth-based solar cells，by contrast，can only collect sun．
Light during daytime and when skies are clear．
But space-based solar power must grapple(努力克服)with the high cost per kilogram of launching things into space，says Richard Schwartz of Purdue University in West Lafayette，Indiana， "If you're talking about it being economically viable or power of the Earth，it's a tough go．"he says.
Cal Boerman，Solaren's director of energy services，says the company designed its satellites with a view to keeping launch costs down．"We knew we had to come up with a different，revolu-tionary design，"he says．A patent the company has won describes ways to reduce the system'Sweight，including using inflatable minors to focus sunlight on solar cells，so a smaller number cancollect the same amount of energy．
But using minors introduces other chaHenges，including keeping the solar cells from overhea-ting，says Schwartz．"You have to take care of heat dissipation(散发)because you're now concen-trating a lot of energy in one place，"he says．According to the company's patent，Solaren's solarcells will be connected to radiators to help keep them cool．
Though Boerman says the company believes it can make space-based solar power work，it is notexpecting to crowd out other forms of renewable energy．Laws in California and other states requireincreasing use of renewable energy in coming years，he points out．"To meet those needs，we're go-ing to need all types of renewable energy sources，"he says．
16．Solar-power satellites will use radio waves to beam energy down from space．
A．Right
B．Wrong
C．Not mentioned
17．Solaren is going to design 200 solar-power satellites．
A．Right
B．Wrong
C．Not mentioned
18．Space-based solar cells could collect solar power only when skies are clear．
A．Right
B．Wrong
C．Not mentioned
19．One advantage of space-based solar power system is that it is economical．
A．Right
B．Wrong
C．Not mentioned
20．Inflatable minors are used to reduce the space-based solar power system．
A．Right
B．Wrong
C．Not mentioned
21．Space-based solar power will rule out other forms of renewable energy sources．
A．Right
B．Wrong
C．Not mentioned
22．Many countries will grant permission for the use of spaced-based solar power soon．
A．Right
B．Wrong
C．Not mentioned
参考答案及解析
16．A[解析]本题给出的信息是正确的，文章第一段中提到"ofpower beamed down from s01ar-power satellites beginning in 2016"说明太阳能卫星会使用无线电波从太空发射能量光束。
17．C [解析]文章没有谈到这方面的信息，文章在第一段中提到200这个数字是关于"Ihe Pacific Gas and Electric Company buy 200 megawatt(兆瓦)of power beamed down from solarpower satellites beginning in 2016"：从2016年起，太平洋天然气和电力公司将购买200兆瓦的从太阳能电站的卫星上发送来的电力。
18．B[解析]本题给出的信息是错误的。文章在第三段末尾提到："在地球上的太阳能电池只能在白天且无云的时候收集阳光。"
19．B [解析]本题给出的信息是错误的。从文章第四段"But space-based solar power must grapple(努力克服)with the high cost per kilogram of launching things into space"：但在太空的太阳能工厂必须努力克服的问题是：向太空发射每一公斤的物品都要付出高昂代价，即成本高的问题。
20．A[解析]本题给出的信息是正确的，从文章第五段"A patent the company has won describes ways to reduce the system's weight"我们知道这家公司的一项专利说明了降低此系统重量的多种方法。
21．B [解析]本题给出的信息是错误的。从文章最后一段"it is not expecting to crowd out other forms 0f renewable energy"我们知道它(从太空中获得的太阳能)并不会挤掉其他形式的可再生能源。
22．C [解析]文章没有谈到这方面的信息。文章主要围绕美国，尤其是加州来说，并没有提到其他国家的情况。
