1. The VLT(Very
Large Telescope)is the world's largest telescope (望远镜) and is taking astronomers
(天文学家) further back to the Big Bang than they ever thought possible. Located
2,600 metres up to the Chilean Andes, it has four huge mirrors, each about the
size of a London bus. The VLT is so powerful it can spot a burning match 10,000
kilometres away. 2. This astonishing power will allow
astronomers to see events in space from the birth of stars to the collision (碰撞)
of galaxies (星系) on the edge of the cosmos (宇宙). The VLT is giving astronomers
their best-ever view of the cosmos. The power of the VLT to see the smallest
detail at the furthest distances makes its designers amazed. 3.
Take the case of Eta Carinae, one of the most explosive stars in the universe.
This star produces ultraviolet laser rays (紫外线) and it will destroy itself in a
few million years' time. It is five times brighter than the sun and when it
explodes it is going to be a sight worth waiting for! 4. But it
is at distances of millions, even billions, of light years that the VLT really
shows its power. The VLT can detect light that set out on its journey before the
earth even existed. This gives astronomers their first—ever detailed views of
events that took place in the earliest days of the cosmos. 5.
In other words, the VLT is a kind of a time machine. It takes astronomers back
to a time when complete galaxies crashed into each other. The effects of these
past collisions can now be seen by scientists, and astronomers believe the
telescope will reveal more about these exciting events in the years to come. One
day, we might be able to say we have traveled back to the beginning of time, and
we will have a much clearer picture of how our planet was born.
填空题
Paragraph 1 ______.
A. Enents that Took Place before the Earth Existed
B. Power of the Telescope
C. Details of Eta Carinae
D. Invention of a Time Machine
E. Biggest Telescope
填空题
Paragraph 2 ______.
填空题
Paragraph 3 ______.
填空题
Paragraph 4 ______.
填空题
The VLT will allow scientists to see events ______.
A. its detecting power B. millions of light years away in space
C. the location of the VLT D. as an example
E. the birth of the earth F. the rotation of the earth
填空题
The designers of the V1T are surprised at ______.
填空题
Eta Carinae is taken ______.
填空题
Scientists believe the VLT will tell us more about ______.