Passage Two-|||-Questions 51 to 55 are based on the following passage.-|||-Is science infinite?Can it keep giving us profound insights into the world forever? Or is it already bumping-|||-into limits? In his 2011 book The Beginning of Infinity physicist David Deutsch made the case for-|||-boundlessness.When I asked him about consciousness,he re think nothing worth understanding will-|||-always remain a mystery.And consciousness apems a understanding."-|||-At a meeting I just attended in Switzerland,"The Mystery of Human Consciousness,"anot famous-|||-British physicist,Martin Rees,challenged Deutsch`s optimism.In that essay Rees calls The Beginning of-|||-Infinity"provocative and excellent but disputes Deutsch`s central claim that science is boundless.Science-|||-will hit the buffers(缓冲区)at some point,"Rees warns.-|||-There are two reasons why this might happen. The optimistic one is that we clean up and understand-|||-certain areas (such as atomic physics)to the point that there`s no more to say.A second,more worrying-|||-possibility is that we`ll reach the limits of what our brains can grasp. There might be concepts,crucial to a full-|||-understanding of physical reality.Efforts to understand very complex systems,such as our own brains,might-|||-well be the first to hit such limits. Perhaps complex collectives of at whether brains or electronic-|||-machines,can never know all there is to know about themselves.-|||-The riddle of consciousness is a synecdoche for the riddle of humanity.What are we,really?For most of-|||-our history,religion has given us the answer.We are immortal souls,striving to reach heaven.Most modern-|||-scientists reject these religious explanations,bu they cannot agree on an alternative.They have proposed a-|||-bewildering variety of answers to the question of what we really are.-|||-Science will never resolv these disagreements and c on a single, true theory of what we are,for-|||-two reasons. One is that we will never have a"consciousness meter,"an objective means of measuring-|||-consciousness in non-huma things. The other is that we are too varying,too creative, to be captured by a-|||-single theory. Science itself keeps transforming with technologies as dive as brain implants,genetic-|||-therapy and ideas as diverse as queer theory and integrated information th To be human means to be a-|||-work in progress.-|||-Deutsch`s claim that science is infinite also has a contradiction at its core.He wants science to solve the-|||-deepest mysteries, like consciousness,and yet to have more mysteries to solve,forever.That is a radical-|||-assertion about the structure of nature,which to my mind reflects wishful thinking rather than hardheaded-|||-realism.-|||-Deutsch is both wrong and right.He is wrong that science can solve every mystery,and especially-|||-consciousness.We will never understand,once and for all,who we are.But Deutsch is right that science is-|||-potentially infinite, if infinite means -ending is precisely because we can never achieve total self-|||-knowledge that we will keep seeking it forever.-|||-51.Which of the following statements may David Deutsch agree with?-|||-A)The case study of physics should be unlimited.-|||-B)The scientific mysteries are worth understanding.-|||-C)The puzzle of consciousness will be worked out.-|||-D)Science will finally hit a bottleneck somewhere.-|||-52.The real reason for science to"hit the buffers"may be that __ _.-|||-A)science will inevitably experience its bottleneck period-|||-B)the cognitive ability of humanity cannot be boundless-|||-C)people are overoptimist about the development of science-|||-D)complicated systems are unable to be fully understood-|||-53.According to the author,the riddle of consciousness __ --|||-A)has been properly worked out by religious theories-|||-B)is made more perplexed by modern science-|||-C)will be solved in science`s debate again religion-|||-D)is the utmost challenge of human understanding-|||-54.What does the author mean by saying"To be human means to be a work in progress." (IIees5-6,Para,5)?-|||-A)Human consciousness is hard to be measured.-|||-B)Human consciousness is fo advancing.-|||-C)Humanity is working hard to make progress.-|||-D)Humanity is always changi developing.-|||-55.What does the author think of Deutsch`s point of view?-|||-B)Completely irrational. D)Quite encouraging.-|||-A)Partially acceptable. C)Somewhat groundless.