(单词翻译:单击)
听力文本
Scientists in the USA have seen something amazing in space for the very first time. They saw gravitational waves. These are waves that form in space and travel outwards. The waves are similar to how ripples in water move outwards after you throw a stone in a lake. The gravitational waves in space start when two giant space objects hit each other. Albert Einstein first spoke about waves in space in 1916 when he made his General Theory of Relativity. One hundred years later, the researchers have proved that Einstein's theory was right. The researchers used powerful technology to see the gravitational waves. Einstein did not have this technology. He used his genius to predict that the waves existed.
Scientists say the discovery of the gravitational waves is one of the most important discoveries ever. Dr Lawrence Krauss, from Arizona State University, said the discovery was as great as the invention of the telescope. He said it would let scientists see many new things in space. It would also answer many questions about our universe. Dr Krauss said: "It has opened a new window on the universe, just like the telescope." He added that: "Using gravitational waves to explore the universe will allow us to see things we could have never seen before. It will also allow us to explore objects in the universe we've never seen before." He said it was beautiful that the discovery happened 100 years after Einstein's prediction.
中文翻译
美科学家首次公布太空惊人发现
据科学家表示,引力波的发现是一次巨大成就
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重点讲解
1.gravitational wave 引力波
例句:When a gravitational wave passes through the bar, it changes the distance between the two ends of the bar.
当引力波经过铝棒时,铝棒的长度将有所改变
。2.Theory of Relativity 相对论
例句:Einstein's theory of relativity won for him universal esteem.
爱因斯坦的相对论赢得了全世界对他的崇敬
。3.similar to 与……相似
例句:Let us suppose another planet with conditions similar to those on the earth.
让我们假定另外有一个具有和地球上相似条件的行星
。4.allow to 允许
例句:The doctor allowed him to smoke.
医生允许他吸烟
。听力题目
1.Where are the scientists from?
a) India
b) China
c) space
d) the USA
2.In what direction do gravitational waves travel from the centre?
a) down
b) outwards
c) up
d) inwards
3.What things must hit each other in space for the waves to form?
a) space dust
b) gravity
c) two giant space objects
d) planets
4.When did Albert Einstein first talk about the waves?
a) 1916
b) 1910
c) 1961
d) 1932
5.What did Einstein use to predict the waves existed?
a) powerful technology
b) a science book
c) his genius
d) the stars
6.In which US state does Dr Lawrence Krauss work?
a) Alaska
b) Arizona
c) Alabama
d) Arkansas
7.What invention did Dr Krauss say the discovery of the waves was like?
a) the telegram
b) the television
c) the telegraph
d) the telescope
8.What would the discovery of the waves answer?
a) questions about the universe
b) the meaning of life
c) how black holes are formed
d) when the Earth began
9.What things in the universe will the discovery allow us to see?
a) time
b) aliens
c) things we've never seen before
d) black holes
10.How long after Einstein's prediction did scientists discover the waves?
a) 110 years
b) 100 years
c) 105 years
d) 99 years
听力答案
1.d
2.b
3.c
4.a
5.c
6.b
7.d
8.a
9.c
10.b