【英语时差8,16】欺骗苏联科学家的“外星人”（下）

 So what was the mysterious source of radio waves? It was the first quasar ever spotted¹. The word quasar is short for “quasi stellar radio source.” Quasi stellar just means they look like stars, and radio source means they emit radio waves even ones that pulsate² with amazing regularity³ and make people on Earth think they must be hearing a communication from aliens. Quasars are incredibly dense⁴ objects that were formed in the early universe and put out a tremendous amount of energy. In fact, one quasar can emit a hundred times more energy than our entire milky⁵ way galaxy⁶!

1 spotted   

adj.有斑点的，斑纹的，弄污了的

参考例句：

• The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。
• Sam's shop stocks short spotted socks.山姆的商店屯积了有斑点的短袜。

2 pulsate   

v.有规律的跳动

参考例句：

• Hues of purplish,rose and amber begin to pulsate in the sky.淡紫色的、玫瑰色的和琥珀色的色调开始在天空中微微颤动起来。
• Building facades pulsate with millions of lights and glowing neon display.在千万灯光和霓虹灯的照耀下，建筑物的外墙规律地闪动着。

3 regularity   

n.规律性，规则性；匀称，整齐

参考例句：

• The idea is to maintain the regularity of the heartbeat.问题就是要维持心跳的规律性。
• He exercised with a regularity that amazed us.他锻炼的规律程度令我们非常惊讶。

4 dense   

a.密集的，稠密的，浓密的；密度大的

参考例句：

• The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
• The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。

5 milky   

adj.牛奶的，多奶的；乳白色的

参考例句：

• Alexander always has milky coffee at lunchtime.亚历山大总是在午餐时喝掺奶的咖啡。
• I like a hot milky drink at bedtime.我喜欢睡前喝杯热奶饮料。

6 galaxy   

n.星系；银河系；一群(杰出或著名的人物)

参考例句：

• The earth is one of the planets in the Galaxy.地球是银河系中的星球之一。
• The company has a galaxy of talent.该公司拥有一批优秀的人才。