题目内容
When we look up at the shining stars on a clear night,we sometimes can't help wondering： Is there life on other p 1 or are we really alone in the universe (宇宙) ？
A lot of scientists have tried and are still trying to find out answers t 2 these questions. Some of them are c 3 out a programme called SETI (对外星智能的探索) .They meet at Arecibo Observatory in Puerto Rico. There,they use a large antenna (天线) and hope that they will make c 4 with other life forms from outer space.
The antenna is over 300 metres wide. It looks for m 5 from the universe.If there is a life somewhere in the universe,it will probably send out some radio signals. This antenna will p 6 them up.
People who want to take part in SETI only need a computer,because the i 7 from the antenna is on the Internet. About 2 million people have already c 8 to the site.They are looking for alien signals on their computers,but they haven’t found any y 9 .
If someone discovers an unusual message,this will mean that h 10 are not the only intelligent creature (智能生物) in the universe. People are interested,in finding any signal from aliens.Well,we must wait and see.
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.
1. planets 2. to 3. carrying 4. contact 5. messages 6. pick
7. information 8. connected 9. yet 10. humans
