中國有天眼，外星人不入侵

李波

“中國天眼”正式啟動，搜尋地球以外的智慧，尋找來自宇宙深處高等智慧生命的信號。

1. vastness /vɑstns/ n. 巨大;廣闊

2. filter /flt（r）/ n. 過濾器

3. distinguish /dstɡw/ v. 區(qū)分;辨別

4. browse /braz/ v. 瀏覽

On 28th April， 2020， Five-hundred-meter Aperture Spherical Telescope （FAST）， nicknamed “China's Eye of Heaven”， officially began its search for intelligence beyond Earth.

It seems that The Three-Body Problem， a science fiction by Chinese author Liu Cixin， has so deeply influenced minds that everybody is worried about the possibility of the Earth being invaded by an advanced civilization beyond Earth. Given the vastness of the universe， such worries are unnecessary， at least for now. Of the 1，800 planets discovered， fewer than 20 can support life， and the closest one， Gliese 581， is 20.4 light years from Earth.

And that's life of any kind. According to Robin Hanson's great filter theory， there is less than a one-in-a-million chance of that life developing into higher intelligence or a civilization. And since their distance from China could even be millions or billions of light years away， if they travel at the speed of light it would take them at least millions of years to reach us.

Therefore， do not worry about aliens invading us because that won't happen anytime soon. However， that does not mean FAST's job is meaningless. As humankind's most sensitive radio telescope， FAST can best collect signals from the universe. Researchers can distinguish even a 4 Hz difference in the signals received， meaning it can best distinguish between manmade and alien-made signals. Even the signals from a non-alien civilization are useful， because they might contain some hidden information leading to the discovery of new stars or planets.

With FAST joining the cause， humankind can browse the universe more deeply than ever before and increase knowledge about the universe. And whatever it achieves is the best evidence of China's advanced technology in astronomy and the study of the universe.

On Monday， the Pentagon released three short video clips about UFOs， shot by the US navy. More exploration will be required to rule out aliens. China's efforts in this regard will be essential.

1. What can we learn about The Three-Body Problem？

A. It has caused a lot of panic.

B. It's anti-scientific literature.

C. It promotes the wisdom of aliens.

D. It is a novel about the science of the uni-verse.

2. Why does the author mention Robin Hanson？

A. To introduce his theory.

B. To let Liu Cixin have a comparison.

C. To remove people's fears of alien inv-asion.

D. To let readers know about aliens' int-elligence.

3. What does the author think of FAST？

A. Unsatisfying.

B. Indifferent.

C. Doubtful.

D. Trustworthy.

4. What type is this text？

A. A novel.

B. A news report.

C. A biography.

D. An advertisement.

Sentence for writing

Given the vastness of the universe， such worries are unnecessary， at least for now.

【信息提取】“Given...”是一個固定表達，意為“考慮到……”。

【句式仿寫】考慮到他未來的不確定性，我別無選擇。