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|Answers for “Is There Anybody Out There” with explanations|
|18. several billion years||life expectancy||paragraph A; line 12||Since the lifetime of a planet ………….. from zero to several billion years. “life expectancy=lifetime”|
|17. ii||paragraph A||Everybody agrees that we should not reply immediately. “response= reply, should not = degree of appropriateness”|
|16. i||paragraph D||An alien civilisation could choose many different ways of sending information across the galaxy. It turns out that, for a given amount of transmitted power, radio waves in the frequency range 1000 to 3000 MHz travel the greatest distance. “looking for radio waves= seeking radio signals”|
|15.vii||paragraph C||it seems inconceivable that at least one of these planets does not have a life form on it; in fact, the best educated guess we can make,…, leads us to estimate that perhaps one in 100,000 stars might have a life-bearing planet orbiting it “likelihood=best guess”|
|14. iv||Paragraph B||There are two assumptions(ground rules) for the search of the ETI|
|19. radio waves||signals, scientists looking for||paragraph D; 1st and 2nd sentence||An alien civilisation could choose many different ways of sending information across the galaxy. It turns out that, for a given amount of transmitted power, radio waves in the frequency range 1000 to 3000 MHz travel the greatest distance, and so all searches to date have concentrated onlooking for radio waves. “alien civilization = intelligent civilization, searching for = looking for”|
|20.||searching, radio telescopes||paragraph D; line 13 and 14||One part is a targeted search using the world‟s largest radio telescopes…. This ………… is searching the nearest 1000 likely stars “|
|21. YES||alien, help overcome problems||paragraph A; last sentence||It it even possible that the older civilisation may pass on the benefits of their experience in dealing with threats to survival such as nuclear war and global pollution, and other threats that we haven‟t yet discovered. “Pass on the benefits = able to help”|
|22. YES||a life form, resemble humans||paragraph B,||Second, we make a very conservative assumption that we are looking for a life form that is pretty well like us…………………. “trying to find= looking for, resembles= pretty well like us”|
|23. NOT GIVEN||Americans and Australians, co-operated||Paragraph D||The Americans and Australians………”whether they have co-operated on joint research projects or not is not mentioned”|
|24. NO||several stars, picked up signals||paragraph D; line 8||Until now, there have not been any detection from the few hundred stars which have been searched. “have not been any detection= have not picked up”|
|25. NOT GIVEN||criticism, congress||paragraph D; line 10||No information is given about the NASA project’s attracting criticism from members of Congress.|
|26. NO||outer space, respond promptly||last paragraph; line 1||There is considerable debate over how we should react if we detect a signal from an alien civilisation. Everybody agrees that we should not reply immediately. “respond=reply, promptly=immediately”|
Passage for the answer of is there anybody out there
IS THERE ANYBODY OUT THERE?
The Search for Extra-Terrestrial Intelligence
The question of whether we are alone in the Universe has haunted humanity for centuries, but we may now stand poised on the brink of the answer to that question, as we search for radio signals from other intelligent civilizations. This search is often known by the acronym SETI [search for extraterrestrial intelligence], is a difficult one. Although groups around the world have been searching intermittently for three decades, it is only now that we have reached the level of technology where we can make a determined attempt to search all nearby stars for any sign of life.
A The primary reason for the search is basic curiosity – the same curiosity about the natural world that drives all pure science. We want to know whether we are alone in the Universe. We want to know whether life evolves naturally if given the right conditions, or whether there is something very special about the Earth to have fostered the variety of life forms that we see around us on the planet. The simple detection of a radio signal will be sufficient to answer this most basic of all questions. In this sense, SETI is another cog in the machinery of pure science which is continually pushing out the horizon of our knowledge. However, there are other reasons for being interested in whether life exists elsewhere.
For example, we have had civilization on Earth for perhaps only a few thousand years, and the threats of nuclear war and pollution over the last few decades have told us that our survival may be tenuous. Will we last another two thousand years or will we wipe ourselves out? Since the lifetime of a planet like ours is several billion years, we can expect that if other civilizations do survive in our galaxy, their ages will range from zero to several billion years. Thus any other civilization that we hear from is likely to be far older on average than ourselves. The mere existence of such a civilization will tell of that long-term survival is possible, and gives us some cause for optimism. It is even possible that the older civilization may pass on the benefits of their experience in dealing with threats to survival such as nuclear war and global pollution, and other threats that we haven’t yet discovered.
Answer of is there anybody out there
Reading Passage 49 has ﬁve paragraphs, A-E.
Choose the correct heading for paragraphs B-E from the headings below.
Write the correct number, i-vii, in boxes 14-17 on your answer sheet.
List of Headings
I. Seeking the transmission of radio signals from planets
II. Appropriate responses to signals from other civilizations
III. Vast distances to Earth’s closest neighbors
IV. Assumptions underlying the search for extra-terrestrial intelligence
V. Reasons for the search for extra-terrestrial intelligence
VI. Knowledge of extra-terrestrial life forms
VII. Likelihood of life on other planets
Paragraph A v
14. Paragraph B
15. Paragraph C
16. Paragraph D
17. Paragraph E
Answer the Questions Below
Choose NO MORE THAN TWO WORDS from the passage for each answer
Write your answers in boxes 18-20 on your answer sheet.
18. What is the life expectancy of Earth?
19. What kind of signals from other intelligent civilizations are SETI scientists searching for?
20. How many stars are the world’s most powerful radio telescopes searching?
Do the following statements agree with the views of the writer in Reading Passage 49?
In boxes 21-26 on your answer sheet, write:
TRUE if the statement agrees with the information
FALSE if the statement contradicts the information
NOT GIVEN if there is no information on this more than once.
21. Alien civilizations may be able to help the human race to overcome serious problems
23. SETI scientists are trying to find a life form that resembles humans in many ways.
23. The Americans and Australians have co-operated on joint research projects.
24. So far SETI scientists have picked up radio signals from several stars.
25. The NASA project attracted criticism from some members of Congress.
26. If a signal from outer space is received, it will be important to respond promptly.