Water power is a renewable and clean source of energy, but building dams requires a lot of land, and if they burst, the environmental damage is widespread.
文章大意:本文是一篇说明文。作者通过列举核能、石油、煤、天然气、水能的优缺点,说明了任何一种能源都有其危险的一面。
1.It can be inferred from the passage that ________.
A.nuclear energy is a doubleedged sword
B.the demand for nuclear energy is declining
C.the nuclear disaster in Japan meant the end of nuclear energy
D.nuclear energy produces onethird of the world's electricity supplies
答案:A 推理判断题。根据第二段可知,一方面原子弹的使用致使数十万人死亡,整座城市被毁,另一方面核能源给人类提供了近14%的电能。由此可知,核能是一把双刃剑。故选A。
2.The underlined word “perilous” in the last paragraph is closest in meaning to “________”.
A.highrewardingB.tiring
C.appealing
D.dangerous
答案:D 词义猜测题。根据本句话中冒号后的内容“coal mining accidents from Colombia to China have resulted in thousands of deaths.”可知,煤矿发生的事故已经夺取了许多人的生命,由此可推知,此处指采煤是一种危险的工作。故选D,意为“危险的”。
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