2022年考博英语-国防科技大学考前模拟强化练习题28(附答案详解)

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1、2022年考博英语-国防科技大学考前模拟强化练习题(附答案详解)1. 单选题In spite of the rain, the _ spectators waited patiently for the delayed start of the game.问题1选项A.industriousB.ingeniousC.chaoticD.assiduous【答案】C【解析】考查形容词辨析。A项industrious“勤奋的,勤劳的”,B项ingenious“有独创性的,机灵的,精制的”,C项chaotic“混沌的,混乱的”,D项assiduous“兢兢业业的,孜孜不倦的”。由spectators(

2、观众)和the delayed start of the game(被推迟的比赛开始)可知,当时的现场应该是“混乱的”,C项符合。句意:尽管下着雨,但是混乱的观众耐心地等待着被推迟的比赛开始。因此,该题选择C项。2. 单选题The relatives who received little or nothing sought to invalidate the will by claiming that the deceased had not been in his right mind when he had signed the document.问题1选项A.destroyB.inve

3、ighC.mandateD.strengthen【答案】A【解析】考查动词辨析。题干invalidate“使无效,使作废”。A项“摧毁,破坏”,B项“抨击,痛骂”,C项“授权”,D项“加强,增强”。因此选A。句意:几乎没有或什么也没有得到的亲戚声称,死者在签署文件时精神不正常,遗嘱无效。3. 单选题His classmates were repelled by his _ and complaining statements.问题1选项A.detrimentalB.obscureC.querulousD.rancorous【答案】C【解析】考查形容词辨析。A项detrimental表示“不利的

4、,有害的”,B项obscure表示“昏暗的,朦胧的,晦涩的”,C项querulous表示“易怒的,暴躁的,爱发牢骚的”,D项rancorous表示“怀恶意的,深恨的”。根据关键词complaining(抱怨)可知,并列的空格处填入“爱发牢骚的”符合语境。句意:他的同学们被他的牢骚和抱怨所厌恶。因此,该题选择C项正确。4. 单选题She was young and beautiful; he was old but very rich. Rumors said that her _ tendency drove her to marry him.问题1选项A.avariciousB.frugal

5、C.austereD.penurious【答案】A【解析】考查形容词辨析。A项avaricious“贪婪的,贪得无厌的”,B项frugal“节俭的,朴素的”,C项austere“严峻的,简朴的”,D项penurious“吝啬的,缺乏的”。由rich可知,四个选项中只有A项符合语境。句意:她年轻美丽;他虽然老了,但很富有。有谣言说她的贪婪倾向驱使她嫁给了他。因此,该题选择A项。5. 单选题It should be obvious that cetaceans-whales, porpoises, and dolphins are mammals. They breathe through lun

6、gs, not through gills, and give birth to live young. Their streamlined bodies, the absence of hind legs, and the presence of a fluke and blowhole cannot disguise their affinities with land dwelling mammals. However, unlike the cases of sea otters and pinnipeds (seals, sea lions, and walruses, whose

7、limbs are functional both on land and at sea), it is not easy to envision what the first whales looked like. Extinct but already fully marine cetaceans are known from the fossil record. How was the gap between a walking mammal and a swimming whale bridged? Missing until recently were fossils clearly

8、 intermediate, or transitional, between land mammals and cetaceans.Very exciting discoveries have finally allowed scientists to reconstruct the most likely origins of cetaceans. In 1979, a team looking for fossils in northern Pakistan found what proved to be the oldest fossil whale. The fossil was o

9、fficial named Pakicetus in honor of the country where the discovery was made. Pakicetus was found embedded in rocks formed from river deposits that were 52 million years old. The river that formed these deposits was actually not far from an ancient ocean known as the Tethys Sea.The fossil consists o

10、f a complete skull of an archaeocyte, an extinct group of ancestors of modern cetaceans. Although limited to a skull, the Pakicetus fossil provides precious details on the origins of cetaceans. The skull is cetacean-like but its jawbones lack the enlarged space that is filled with fat or oil and use

11、d for receiving underwater sound in modern whales. Pakicetus probably detected sound through the ear opening as in land mammals. The skull also lacks a blowhole, another cetacean adaptation for diving. Other features, however, show experts that Pakicetus is a transitional form between a group of ext

12、inct flesh-eating mammals, the mesonychids, and cetaceans. It has been suggested that Pakicetus fed on fish in shallow water and was not yet adapted for life in the open ocean. It probably bred and gave birth on land.Another major discovery was made in Egypt in 1989. Several skeletons of another ear

13、ly whale, Basilosaurus, were found in sediments left by the Tethys Sea and now exposed in the Sahara desert. This whale lived around 40 million years ago, 12 million years after Pakicetus. Many incomplete skeletons were found but they included, for the first time in an archaeocyte, a complete hind l

14、eg that features a foot with three tiny toes. Such legs would have been far too small to have supported the 50-foot-long Basilosaurus on land. Basilosaurus was undoubtedly a fully marine whale with possibly nonfunctional, or vestigial, hind legs.58. Which of the following can be inferred from paragr

15、aph 1 about early sea otters?59. Pakicetus and modern cetaceans have similar _.60. The hind leg of Basilosaurus was a significant find because it showed that Basilosaurus _.61. It can be inferred that Basilosaurus bred and gave birth in which of the following locations?问题1选项A.It is not difficult to imagine what they looked like.B.There were great numbers of them.C.They lived in the sea only.D.They did not leave many fossil remains.问题2选项A.hearing structuresB.adaptations for divingC.skull shapesD.breeding locations问题3选项

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