Contrarytothebig,scaryroars(吼叫)thatweseeatthemovies,d...

问题详情：

   Contrary to the big, scary roars(吼叫)that we see at the movies, dinosaurs, even the large ones, might not have roared at all. Just as we now know that dinosaurs had feathers and potentially had mating(交配) ways similar to modern birds, it’s very possible that dinosaurs sounded more like birds than we’d like to think. In a paper published in Evolution researchers raise the possibility that the sounds some birds might have their roots in the vocalizations(发声)of their ancestors: Dinosaurs.

   “To make any kind of sense of what dinosaurs sounded like, we need to understand how living birds vocalize,” co-author of the paper Julia Clarke said. “Not only were dinosaurs feathered, but they may have had bulging(隆起的)necks and made booming, closed-mouth sounds.”

   This is just one possibility in the wide world of dinosaur sounds. The one thing that everyone can agree on his that without the help of a time machine, we’re never going to know whether dinosaurs sounded more like birds or snakes, or crocodiles. We can make educated guesses but the fact is that most sounds are made with soft parts of an animal’s body; the tongue, the throat, the lungs, and, unlike bones, those just don’t survive for millions of years.

   In the past, researchers have looked at the size of lungs and the shape of the neck to try to determine the volume. Even if they can’t definitively tell what kind of sounds they were making, it’s likely that a large dinosaur, with large lungs would be able to make louder noises than a smaller dinosaur with smaller lungs.

   We might never know exactly what a dinosaur sounds like, but by listening to large birds and reptiles, we might come close.

33. According to the first paragraph, dinosaurs’ vocalizations may sound more like _________.

   A. birds               B. snakes          C. crocodiles          D. tigers

34. What is the biggest trouble for scientists to study dinosaurs’ vocalizations?

   A. Lack of money

   B. The objection of the public

   C. The objection of government

   D. Lack of dinosaurs’ existing vocalizing organs

35. What may be the best title for the text?

   A. Dinosaurs Lived Happily               B. Birds’ Ancestor: Dinosaurs

   C. Dinosaurs May No Roar                D. Birds’ Strange Vocalizations

【回答】

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知识点：科普环保类阅读

题型：阅读理解