文勇的新托福黄金&ccedil

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Unformatted text preview: “noisy” nest was taken or destroyed by predators before the egg in a nearby quiet nest in 29 of 37 trials.■ 13. Look at the four squares [■] that indicate where the following sentence could be added to the passage. The cheeping provides important information to the parent, but it could also attract the attention of others. Where would the sentence best fit? 14.Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that not presented in the passage or are minor ideas in the passage. This question is worth 2 points. Experiments have shed much light on the begging behaviors of baby songbirds ● ● ● Answer Choices ○ Songbird species that are especially vulnerable to predators have evolved ways of reducing the dangers associated with begging calls. ○ Songbird parents focus their feeding effort on the nestlings that beg loudest for food. ○ It is genetically disadvantageous for nestlings to behave as if they are really hungry when they are not really hungry. ○ The begging calls of songbird nestlings provide a good example of overly damaging cost to signalers of signaling. ○ The success with which songbird nestlings communicate their hunger to their parents is dependent on the frequencies of the nestlings' begging calls. ○ Songbird nestlings have evolved several different ways to communicate the intensity of their hunger to their parents. 344 Mail@liuwenyong.com 在在在在在在 www.liuwenyong.com 在在在在在在在在在在在在在在在,在在在在在在在在在在 在在在在在 ○3 2. ○1 3. ○2 4. ○2 5. ○3 6. ○4 7. ○2 8.○2 9. ○3 10. ○1 11. ○3 12. ○4 13. ○2 14. ○1, 2, 3 1. 345 Mail@liuwenyong.com 在在在在在在 www.liuwenyong.com 在在在在在在在在在在在在在在在,在在在在在在在在在在 在在在在 在在在在在在在 在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在 在在在在在在在在在在在在在在在“在在”在在在在在在 39 在在在在在 27 在在在在在在在在在在在在在在在在在在在在在在在在 在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在 在 David Haskell 在在在在在在在在在在在在在在在在在在在在在...
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This note was uploaded on 09/17/2013 for the course LANGUAGE 13DL208 taught by Professor Wang during the Fall '13 term at East China Normal University.

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