新标准大学英语综合教程2-uit test7答案新标准大学英语综合教程2-unit test7答案.doc

Part I: Vocabulary and Structure Section A: Choose the best way to complete the sentences. 1. Dogs share many of the same _______ as humans and can easily show emotion. A. attributes B. distributes C. tributes D. reattributes 2. Compared to my pet frog, that horse seemed like a _______ animal. A. miniature B. typical C. giant D. short 3. It might be hard to believe but some ants are _______ of carrying more than ten times their body weight! A. capable B. capability C. able D. ability 4. Over millions of years, animals on Earth _______ and adapted to many different environments. A. grew B. involved C. developed D. evolved 5. Polar bears are able to stay warm in such cold places because they have a thick _______ of fat beneath their fur. A. layer B. coat C. sheet D. stack 6. Many animals, like chipmunks, live underground in vast networks of _______ that they dig. A. holes B. tunnels C. openings D. caves 7. Elephants are often called _______ animals because of their size, beauty, and elegance. A. enormous B. magnificent C. interesting D. compelling 8. Scientists have been studying DNA for years but theyve only _______ a fraction of the information it contains. A. covered B. recovered C. discovered D. uncovered 9. Charles Darwin suggested that humans and apes, such as chimpanzees, shared a similar _______ from a common ancestor. A. descent B. ascent C. descendent D. descendant 10. There is a famous story about a lion that had a thorn stuck in its _______. A. hand B. paw C. hoof D. flipper 11. When he wants to go outside, my dog will _______ bark at the front door until someone opens it. A. unreliably B. previously C. distractedly D. repeatedly 12. Penguins may look a little sil