单选题
阅读下面的短文,文中有15处空白,每处空白给出4个选项。请根据短文的内容,从4个选项中选择1个最佳答案。
{{B}}Solar equipment{{/B}}

Since about 1800, near the beginning of the Industrial Revolution, coal, petroleum, and gas have been used at a rapidly increasing rate. The supply of these {{U}}(51) {{/U}} is limited, and electric power is very scarce in many places. Some scientists believe solar energy is the only {{U}}(52) {{/U}} which can meet the world's enormous {{U}}(53) {{/U}} for power. Great progress had been made in harnessing the sun. Not {{U}}(54) {{/U}} is the sun now used in cooking, but it also supplies power for {{U}}(55) {{/U}} things as beacon lights for ships and airplanes. It operates telephone lines, portable radios, electric clocks, hearing aids, and {{U}}(56) {{/U}} communication satellites. Some homes and office buildings in the United States are now being {{U}}(57) {{/U}} with solar energy.
The three most significant types of solar equipment so {{U}}(58) {{/U}} are the furnace, the still, and the cell. Solar furnaces heat water or air, {{U}}(59) {{/U}} is then circulated through a building to make it comfortable. Solar stills are {{U}}(60) {{/U}} important because they can provide {{U}}(61) {{/U}} water at a relatively cheap rate. Salt can be easily removed from sea water with a solar still.
The most highly developed is the solar cell. Some cells are so {{U}}(62) {{/U}} that they can turn 16 percent of the energy they received from the sun into electric energy. One of the cell's biggest advantages is {{U}}(63) {{/U}} it can be made either small enough to carry {{U}}(64) {{/U}} large enough to produce a current that can run an automobile. Besides, it has a very long life. It is still too expensive for the average consumer. But when ways are {{U}}(65) {{/U}} to produce it more cheaply, we can expect its use to be widespread.

【正确答案】 D
【答案解析】上一句说“大约自1800年,即工业革命开始的时候,煤炭、石油和天然气以极快的速度得到利用”,接下来的一句是对上一句所列举的“煤炭”、“石油”、“天然气”的概括,由此可见,此题应选D项fuel意为燃料。A意为物质, B意为矿石,C意为来源、源头、发源地。
【正确答案】 D
【答案解析】本题要求填一个名词做后面定语从句的先行词。A意为“方式、方法、手段”,B意为“源头、出处、来源”,C意为“解决、解答”,D意为“资源”。故D为正确答案。
【正确答案】 A
【答案解析】meet the need of...是固定搭配,意为“适应……的需要”。
【正确答案】 C
【答案解析】可与but also连用的,只有not only。
【正确答案】 C
【答案解析】纵观四个选项,只有C.such。可与as连用,表示象后面提及的。
【正确答案】 B
【答案解析】从句子关系来看前后列举了一系列事物,后面进一步指出“甚至”传播卫星也是由太阳能来控制的。因此只有B符合题意。A意为“仅”,C意为“正好、恰好”,D意为“因此、所以”。
【正确答案】 A
【答案解析】在下一段中出现heat一词,由此可以判断此处应填heated即“用太阳能来供暖”。C.be equipped with意为“以……装备”,D.be built with意为“以……建造”。
【正确答案】 D
【答案解析】so与far连用意为“到目前为止、现在、迄今为止”。so many/much意为“如此多”,so long意为“再见”。
【正确答案】 C
【答案解析】此处要求填一个关系代词来引导一个非限制性定语从句修饰 water or air。四个选项中只有which可引导限制性定语从句,由此可得出正确答案。
【正确答案】 B
【答案解析】A意为“特意地、专门地”,B意为“尤其、特别”,C意为“本质上、基本上”,D意为“基本上、根本上”,根据句意可知此处翻译为“特别重要”,所以应选B。
【正确答案】 A
【答案解析】本句意为“太阳能蒸馏器可以以相对低的价位提供蒸馏水”。而四个选项中可以与“蒸馏水”意思相近表示“干净、纯净”的就只有A。
【正确答案】 C
【答案解析】C意为“有效力的”,而此句正是说太阳能电池十分有效力,以致于……。A意为“有效的,能达到期望效果的”;B意为“可靠的,可依赖的”;D意为“称心的,合意的”。
【正确答案】 B
【答案解析】四个选项中只有that在引导表语从句时无实义,而根据句意,句中并没有疑问,所以A、C、D三项皆不合适。
【正确答案】 C
【答案解析】与either连用只能用or,表示或者……或者……。
【正确答案】 A
【答案解析】本题需要选出一个动词与ways搭配,ways表示方法,方法只可以发现而不可以发明,所以应选discover,此处的基本结构为discover ways to do sth.意为“发现做……的方法”。disclose意为“某物显露,公开某事,透露某事”;reveal意为“泄露,透露,揭露(事实等)”。