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ey tend to keep more food to themselves. D. Because they benefit from using the information from other species. [答案 ] D。 (27) The whales stranded on the beach followed the dolphin to safety probably because . A. they understood the dolphin39。 (26)Dolphins municate with one another, using all the following types of signaling EXCEPT . A. gestures B. whistles C. clicking D. postures [答案 ] A。 tendency to talk to humans [答案 ] C。s University. The animals exploit the systems of others for their own benefits. Sometimes the benefits are the same for each, therefore they share information. Sometimes they are trying to take advantage of the other. Getting food may not be to the advantage of the one giving up the food. the 1st paragraph and do Ex 24. the 2nd paragraph and do Ex 25 3. Read the 3rd paragraph and do Ex 26 4. Read the 4th paragraph and do Ex 27 5. Read the 5th paragraph and do Ex 28 sentence by sentence and explain the important words and expressions and long and difficult sentences. the exercises. 一 Steps: 二 Exercises: (24) What happened after Moko the dolphin appeared at Mahia beach? A. The beached whales still felt distressful. B. Moko led the whales back to the sea. C. The whales were still stuck on the beach. D. Moko and the whales swam together ashore. [答案 ] B。t be instructions like 39。s North Island, their mood changed and they followed him to safety. The ability of some animals to municate is well known. What is less well documented, however, is the munication between species. Justin Gregg, vice president of the Dolphin Communication Project, said it is possible that a dolphin and a whale could municate in some way. But it wouldn39。s possible that Moko the dolphin and the stranded whales shared