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1、2022年考博英语-昆明理工大学考前模拟强化练习题（附答案详解）1. 单选题It is well known that the retired workers in our country are （ ）free medical care.问题1选项A.entitled toB.involved inC.associated withD.assigned to【答案】A【解析】考查词组辨析。A选项 entitled to“有权享有，有资格”；B选项involved in“涉及”；C选项associated with“参加，与有关”；D选项assigned to“被分配给”。根据free med
2、ical care（免费医疗）可知A选项符合语境。句意：众所周知，我国退休职工享有免费医疗。2. 单选题Mr. Lee is far too wise a man not（ ）that.问题1选项A.seeingB.being seenC.seeD.to see【答案】D【解析】考查固定结构。too.to表示“太以至于不能”，too. not to属于双重否定的结构，表示“太不能不”。句意：李先生太聪明了，不会不知道这点的。3. 单选题One of the recurrent frustrations and tragedies in the history of thought is cau
3、sed by the uncertainty（ ）to solve a given problem by traditional methods previously applied to problems which seem to be of the same nature.问题1选项A.that is possibleB.whether it is possibleC.that it is possibleD.about what is possible【答案】B【解析】考查同位语从句。句子主干为One of the recurrent frustrations and tragedie
4、s is caused by the uncertainty（反复出现的挫折和悲剧之一是由不确定性引起的），由空格前的uncertainty（不确定性）可知此处表示的是“一种可能性”。因此选B，由whether引导的同位语从句对前面的抽象名词uncertainty进行解释说明。句意：思想史上反复出现的挫折和悲剧之一，是由不确定性引起的，即是否用传统的方法来解决一个给定的问题，这些方法以前应用于看起来性质相同的问题中。4. 单选题You stare at waterfall for a minute or two, and then shift your gaze to its surround
5、ings. What you now see appears to drift upward. These optical illusions occur because the brain is constantly matching its model of reality to signals from the bodys sensors and interpreting what must be happening that your brain must have moved, not the other; that downward motions is now normal, s
6、o a change from it must now be perceived as upward motion.The sensors that make this magic are of two kinds. Each eye contains about 120 million rods, which provide somewhat blurry black and white vision. These are the windows of night vision; once adapted to the dark, they can detect a candle burni
7、ng ten miles away.Color vision in each eye comes from six to seven million structures called cones. Under ideal conditions, every cone can “see” the entire rainbow spectrum of visible colors, but one type of cone is most sensitive to red, another to green, a third to blue.Rods and cones send their m
8、essages pulsing an average 20 to 25 times, per second along the optic nerve. We see an image for a fraction of a second longer than it actually appears. In movies, reels of still photographs are projected onto screens at 24 frames per second, tricking our eyes into seeing a continuous moving picture
9、.Like apparent motion, color vision is also subject to unusual effects. When day gives way to night, twilight brings what the poet T.S. Eliot called “the violet hour” A light levels fall, the rods become progressively less responsive. Rods are most sensitive to the shorter wavelengths of blue and gr
10、een, and they impart a strange vividness to the gardens blue flowers.However, look at a white shirt during the reddish light of sunset, and youll still see it in its “true” color white, not red. Our eyes are constantly comparing an object against its surroundings. They therefore observe the effect o
11、f a shift in the color of illuminating on both, and adjust accordingly.The eyes can distinguish several million graduations of light and shade of color. Each waking second they flash tens of millions of pieces of information to the brain, which weaves them incessantly into a picture of the world aro
12、und us.Yet all this is done at the back of each eye by a fabric of sensors, called the retina, about as wide and as thick as a postage stamp. As the Renaissance inventor and artist Leonardo da Vinci wrote in wonder, “Who would believe that so small a space could contain the images of all the univers
13、e?”1.Visual illusions often take place when the image of reality is（ ）.2.The visual sensor that is capable of distinguishing shades of color is called（ ）.3.The retina send pulses to the brain（ ）.4.Twenty-four still photographs are made into a continuous moving picture just because（ ）.5.The authors p
14、urpose in writing the passage lies in（ ）.问题1选项A.matched to six to seven million structures called conesB.confused in the bodys sensors of both rods and conesC.interpreted in the brain as what must be the caseD.signaled by about 120 million rods in the eye问题2选项A.conesB.color visionC.rodsD.spectrum问题3
15、选项A.in short wavelengthsB.as color picturesC.by a ganglion cellD.along the optic nerve问题4选项A.the image we see usually stays longer than it actually appearsB.we see an object in comparison with its surroundingsC.the eyes catch million pieces of information continuouslyD.rods and cones send messages 20 to 25 times a second问题5选项A.showing that we sometimes are deceived by our own eyesB.informing us about the different functions of the eye organsC.regretting that we are too slo
