2010年全国职称英语理工类（A级）考试真题及答案
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
第3部分：概括大意与完成句子(第23～30题，每题1分，共8分)
下面的短文后有2项测试任务：
(1)第23～26题要求从所给的6个选项中为第2-5段每段选择1个最佳标题；
(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。
Natural Gas
1 Natural gas is produced from reservoirs deep beneath the earth's surface．It is a fossil fuel
(矿物质燃料)，meaning that it is derived from organic material buried in the earth millions of yearsago．The main component of natural gas is methane(甲烷)．
2 The popularity and use of clean natural gas has increased dramatically over the past 50 years as pipeline infrastructure(基础设施)has been installed to deliver it conveniently and economically to millions of residential，commercial and industrial customers worldwide．Today，natural gas serviceis available in all 50 states in the U．S．，and is the leading energy choice for fueling Americanhomes and idustries。More than 65 million American homes use natural gas．In fact，natural gas isthe most economical source for home energy needs，costing one-third as much as electricity．In addi-tion to heating homes，much of the gas used in the United States is used as a raw material to manu-facture a wide variety of products，from paint，to fibers for clothing，to plastics for heahhcare，con-puting and furnishings．Natural gas is also used in a significant number of new electricity-generating power plants．
3 Natural gas is one of the safest and cleanest fuels available．It emits less pollution than oth-er fossil fuel sources．When natural gas is burned，it produces mostly carbon dioxide(二氧化碳) and water vapor-the same substances emitted when humans exhale．Compared with some other fos-sil fuels，natural gas emits the least amount of carbon dioxide into the air when combusted(燃烧)， making natural gas the cleanest burning fossil fuel of a11．
4 The United States consumes about one-third of the world'S natural gas output，making it the largest gas-consuming region in the world．The U．S．Department of Energy'S Energy Information Ad-ministration forecasts that natural gas demand will grow by more than 50 percent by 2025．
5 There are huge reserves of natural gas beneath the earth's surface．The largest reserves of natural gas can be found in Russia，West and North Africa and the Middle East．LNG(液化天然气)has been produced domestically and imported in the United States for more than four decades．
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