Scientists have seen something amazing in space for the first time. They saw gravitational waves(引力波). These are waves in space that are like waves in water. They move outwards from the centre. Gravitational waves start when very big space things hit each other. Albert Einstein first spoke about waves in space in 1916 in his General Theory of Relativity(广义相对论). One hundred years later, the researchers have proved Einstein was right. The researchers used powerful technology to see the waves. Einstein did not have this technology. He used his super head to predict that the waves were outside in the space.
The discovery of gravitational waves is one of the most important discoveries ever. A scientist from Arizona State University said it was as important as the invention of the telescope. It will let scientists see many new things in space and answer questions about our universe. The scientist said, “It has opened a new window on the universe.” He added that, “Using gravitational waves to study the universe will allow us to see things we could have never seen before.” He said it was beautiful that the discovery happened 100 years after Einstein's prediction.
本时文内容由奇速英语国际教育研究院原创编写，禁止复制和任何商业用途，版权所有，侵权必究！
1.The amazing things that scientists saw in the space are _______.
A stars
B people
C spaceships
D gravitational waves
解析：选D。细节理解题。根据第一段第一、二句Scientists have seen something amazing in space for the first time. They saw gravitational waves.可知，故选D。
2.Who first spoke about the gravitational waves?
A Edison.
B Newton.
C Einstein.
D Darwin.
解析：选C。细节理解题。根据第一段第六句Albert Einstein first spoke about waves in space in 1916 in his General Theory of Relativity.可知，故选C。
3.Einstein knew there are gravitational waves with _______.
A telescope
B prediction
C his super head
D powerful technology
解析：选C。细节理解题。根据第一段最后一句He used his super head to predict that the waves were outside in the space. 可知，故选C。
4.What’s the right order?①The universe begins. ②Gravitational waves happens.
③Big space things hit each other. ④Scientists saw gravitational waves.
A ①③②④
B ④③②①
C ④①②③
D ③④②①
解析：选A。逻辑顺序题。按时间先后顺序应为：宇宙诞生——太空中巨大物体相撞——引力波产生——科学家观测到引力波，故选A。
5.The underlined word “prediction” means _______ in Chinese.
A 猜测
B 断言
C 预言
D 引力
解析：选C。词义猜测题。根据上文语境爱因斯坦1916年的预言可知此处prediction应为名词形式“预言”，故选C。
