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Answers for “Is There Anybody Out There” with explanations

William Henry Perkin

The History of The Tortoise

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Answers for “Is There Anybody Out There” with explanations
AnswersKeywordsLocationExplanation
18. several billion yearslife expectancyparagraph A; line 12Since the lifetime of a planet ………….. from zero to several billion years. “life expectancy=lifetime”
17. iiparagraph AEverybody agrees that we should not reply immediately. “response= reply, should not = degree of appropriateness”
16. iparagraph DAn 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.viiparagraph Cit 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. ivParagraph BThere are two assumptions(ground rules) for the search of the ETI
19. radio wavessignals, scientists looking forparagraph D; 1st and 2nd sentenceAn 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 telescopesparagraph D; line 13 and 14One part is a targeted search using the world‟s largest radio telescopes…. This ………… is searching the nearest 1000 likely stars “
21. YESalien, help overcome problemsparagraph A; last sentenceIt 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. YESa life form, resemble humansparagraph 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 GIVENAmericans and Australians, co-operatedParagraph DThe Americans and Australians………”whether they have co-operated on joint research projects or not is not mentioned”
24. NOseveral stars, picked up signalsparagraph D; line 8Until 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 GIVENcriticism, congressparagraph D; line 10No information is given about the NASA project’s attracting criticism from members of Congress.
26. NOouter space, respond promptlylast paragraph; line 1There 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”

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