VOA慢速英语:Are Fast Radio Bursts Evidence of Unknown Life?

短语讲解：

1. Ten years ago, scientists started noticing very brief, but powerful radio bursts coming from outer space.

come from 源自; 来自某处; 出生于
例句：Ambient noise may come from any direction.
外界噪声可以来自任意方向。

2. Many scientists believe that these powerful flashes may be related to the collapse of a massive star.

relate to 涉及; 同…有…关系; 与…协调
例句：How do these relate to the product being designed?
这些经历同将要设计的产品有什么关系？

3. If you bounce light off a sail, you could push a spacecraft.

light off 关灯; 点火;
例句：Don't forget turn the light off.
勿忘随手关灯。

4. Loeb says it could be created by alien life forms belonging to a highly developed civilization.

belong to 属于
例句：I belong to no party.
我不属于任何派别。

5. It shows up on Earth as a very bright, fast-moving radio wave.

show up 显而易见; 到场; （使） 看得见
例句：His show off only serves to show up his ignorance.
他的卖弄只不过暴露了他自己的无知。

6. And the idea is that the beam of light that is being used to push the sail is leaking.

be used to 习惯于，适用于
例句：This piece of cloth can be used to make a pair of pillow cases.
这块布可以做一对枕套。

7. Since then, a total of 18 have been identified using very large radio telescopes.

a total of 总数为
例句: Out of a total of 2,602 pupils only 922 passed the test
所有2,602名学生中，只有922名通过了测试。

8. They could also come from black holes – areas with a gravitational field so intense that no matter or radiation can escape.

no matter 不管; 不论; 不介意; 不要紧
例句："No matter what you do, never lose heart."
不管你做什么千万不可泄气。