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1、2022年考博英语-中央民族大学考试题库及全真模拟冲刺卷（附答案带详解）1. 不定项选择题More than two million films lie in storerooms around the world, some of them so badly damaged that they can no longer be screened. If nothing is done, they could disappear for good, like half the films made in the US before 1950. But research promises an
2、automated technique, to restore these old films to their former glory.Films can be cleaned chemically or by using ultrasound. But this is time-consuming and expensive, and chemicals can also damage the original films. Another approach is to digitize the film and then clean up the digital version fra
3、me by framea terrible job. When Disney cleaned up Snow White for release on DVD, for instance, graphic artists worked in shifts on 40 computers day and night for 18 weeks.“These computer-aided techniques remain very expensive,” says Samia Boukir, who started work on an automated system, “only an aut
4、omated system can hope to salvage the archive of deteriorating films.”Once a film has been scanned in, the first stage of the process is to find dust spots. They usually occur only on single frames, so the system looks for small spots that are visible on one frame and absent on its neighbors. The so
5、ftware repairs the image by sampling the unspoilt area of the image on the adjacent frames and replacing the dust spot with an average of the sampled picture element.Detecting scratches is more complicated because they may run over several frames and can be confused with vertical lines that are part
6、 of the film. But a telltale pattern often gives them away: scratches are normally caused by the mechanical parts of a projector rubbing on the film, so they tend to repeat at regular intervals.The system looks for a periodic pattern of this type from frame to frame, predicting when it should occur
7、in the subsequent frames. Having identified the scratch and its duration, the software then repairs the damage by taking picture element from undamaged frames before and after the scratch. This smoothing effect avoids any sharp edges in the restored image.Once restored, the digitized films can be vi
8、ewed by future generations without risking more damage to the original by running it through a projector. “Film has a hundred-year history, but the knowledge of how to store it properly is only 15 years old,” says Godfrey Pye of Sunset Digital, a Hollywood-based company.1. From the second paragraph
9、we learn that（ ）.2. What is Samia Boukirs attitude towards automated restoration of the film?3. What is the characteristic of the distribution of dust spots on the films?4. The following statements is the reasons why scratches are hard to be detected.（ ）5. By saying that “without risking more damage
10、 to the original by running it through a projector”, (L.1-2, Para. 7) the author means that（ ）问题1选项A.there have been many methods to clean up the filmsB.Disney repaired the damage of Snow White for profitC.chemical cleaning and the use of ultrasound have the same effectD.cleaning digitalized film is
11、 considered feasible in film restoration问题2选项A.Neutral.B.Negative.C.Positive.D.Indifferent.问题3选项A.The spots are in the unspoilt area of the image.B.The spots are on the average sampled picture element.C.The spots cannot appear on two adjacent frames at the same time.D.The spots are on the frame that
12、 is visile.问题4选项A.The scratches appear at order intervals.B.It is easy to distinguish vertical lines and scratches.C.The scratches can extend to several frames.D.The shape of scratches is different from some parts of the film.问题5选项A.later use may not cause new damage to the films after restoration.B
13、.there is no environmental risk in repairing the original films.C.the restored films have perfect visual effect.D.the projector has the function of protecting the restored films.【答案】第1题:A第2题:C第3题:C第4题:C第5题:A【解析】第1题:细节推断题。A项可以从第二段的“Another approach is to”得知，至少有三种方法来修复，因此正确，暂时保留；B项错误，确实是修复了白雪公主，但是并没有说
14、是否是为了收益；C项第二段中提到，“chemicals can also damage the original films”也就是化学的方式可能会损坏，因此两者不同，C错误；D项文章说了这种方法“shifts on 40 computers day and night for 18 weeks”是非常大的工作量，很累人，因此不一定可行。答案为A。第2题:作者态度题。从第三段他说“These computer-aided techniques remain very expensive,”以及“only an automated system can hope to salvage the a
15、rchive of deteriorating films.”这两句话可以看出，他是非常支持自动修复的，甚至认为这是唯一的方法来拯救老电影。因此答案为C。第3题:细节推断题。答案出处根据题干可以定位到第四段和第五段，第四段的第二句：They usually occur only on single frames意思是它们通常只出现在单帧上，因此答案为C，是这句话的转述。第4题:细节推断题。根据题干定位到第五段，第五段第一句，“Detecting scratches is more complicated because they may run over several framesthe film.”意为“探测划痕更为复杂，因为划痕可能会覆盖好几帧，而且可能会与作为胶片一部分的垂直线混淆。”因此告诉我们划痕可能延展到好几帧，答案为C。第5题:作者意图题。句子字面含义为“数字化的胶片一旦被修复，就可以被子孙后代观看，而不会因为通过放映机放映而对原胶片造成更大的损害。”我们可以看出意思是一旦修复好了，之后就一劳永逸了，不用担心会有其他的损坏，答案A为同义转述，正确。2. 不定项选择题It is said that in England death is pressing, in Canada inevitable and in California opti
