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.

【题文】 Children under age 6 should try their best not to use cellphones or computers, the National Health Commission has said, in a bid to protect them from nearsightedness. The commission also advised against parents using electronics before their children. The advice came when the commission recently made public the results of a survey on nearsightedness among children and youths. The survey found that 53. 6% of Chinese children and teenagers had suffered from nearsightedness in 2018. The nearsightedness rate was 14. 5% for 6-year-olds in kindergarten, 36% for primary school students, 71. 6% for junior middle school students, and 81% for senior high school students. The commission said age 0-6 is a serious time to develop the ability of seeing, and special importance should be put on the protection and health of eyesight at an early stage. It added that the most important cause of nearsightedness is that children spend too much time watching cellphones, computers and televisions. At primary and middle schools, teaching with electronics should be controlled to no more than 30% of overall teaching time. After classes, students should take a rest of 10 minutes after using electronic products for learning for 30-40 minutes. Children shouldn't spend more than one hour a day using electronic products for fun. In addition, the commission made suggestions on outdoor exercise. It said children and teenagers should control the continuous use of eyes in reading and writing to no more than 40 minutes and leave enough time for outdoor activities in the daytime. Teachers and parents should guide children to actively take part in exercise, with around two hours of outdoor activities in the daytime. China made a plan last year to stop the rise in nearsightedness among children and teenagers. It wants to keep the nearsightedness rate among 6-year-olds at around 3% by 2030, and the rate among junior and senior high school students below 60% and 70%.【小题1】What does the underlined word "electronics" refer to? A．Cellphones and computers. B．Letters and cellphones C．Computers and magazines. D．newspapers and computers 【小题2】Students in________ have the highest percentage of nearsightedness. A．kindergarten B．primary school C．junior high school D．senior high school 【小题3】Which of the following is the most important cause of kids' nearsightedness? A．Kids spend too much time on their homework. B．Kids spend too little time doing eye exercises C．Kids spend much time on electronic products D．Kids spend too little time doing outdoor exercise 【小题4】The main idea of Paragraph 4 may be that________. A．it's very bad for kids to use electronic products B．children should use electronic products properly C．children should use electronic products in class D．it's difficult for kids to use electronic products

Section C-|||-Passage One-|||-Questions 46 to 50 are based on the following passage.-|||-A six-week old infant who died some 11,500 years ago in central Alaska is now providing clues about how-|||-the Americas first came to be populated.-|||-Genomic data from remains of the girl-named"Xach`itee aanenhTeedeGaay"(Sunrise Girl-Child) by-|||-the laal mogenos sommuly-support a migration model that scientists have long argued for,-|||-while also revealing the existence of an ancient population previously unknown to science. The girl was a-|||-member of an ancient population that the report authors have named "Ancient Beringians".Beringia tse-|||-name given to Alaska, Eastem siberia,an the land bridge that periodically connect the two during the last-|||-ice age.-|||-The findings suggest a revised family tree:a single ancestral Native American group split from East Asians-|||-about 35,000 years ago,before later splitting,some 20,000 years ago,into two distinct groups. One was the-|||-Ancient Beringians,and the other constituted the ancestors of moden-day Na Americans,who later split-|||-into northern and southem populations about 700 years ago.-|||-"Trying to integrate these findings with what we know fromanthaedlogy(考古学)and paleoecology(古-|||-生态学)presents exciting new puzzles,"says Ben poter,an anthepoulsig f(x at the University of-|||-Alaska."The peopling has been shown now to be more complex than we thought previously."Scientists have-|||-sought ancient human remains from Beringia at the end of the last ice age, but Xach`itee`aanenhT"eedeGaay`s-|||-genome held a surprise:it was clearly Native American,but not from either of the two major modern Native-|||-American groups.It represented a population diverged from that common ancestor.-|||-All of this helps narrow down and strengthen the theories of just how those populations arrived in the-|||-Americas. But mysteries renain, incholidding dein about where and when some of these population-|||-splits occurred and which migration routes were used.-|||-Researchers outline two possible models.In one scenario,which Dr. Potter favors since it matches well-|||-with archaeological data paleoecological data,the split occurred in Northeast Asia,and the two separate-|||-populations later crossed over the land bridge prior to 15,700 years ago,when the Native American ancestors-|||-split again.In the other theory,the ancestal popuation ha arrived in Alaska or eastern Beringia by-|||-20,000 years ago,and the split occurred there,with the second split into North and South American populations-|||-occurring south of the ice sheets.What happened to the Ancient Beringians?They might have died out, says-|||-Potter,or they could have been absorbed by Northern Native Americans who migrated back to the far North.-|||-Researchers liken the puzzle to a murder mystery."You read the book,and the author reveals new clues-|||-over the course of the book.Every time a new genome is analyzed and reported,it provides a new clue that`s-|||-making the pathway to uncover the real story that much clearer."-|||-46.What can we learn about the girl called"Xachitee anne eedeGaay"?-|||-A)She was found dead about six week old some 11,500 years ago.-|||-B)She provided new chues for the study on the first American population.-|||-C)She belonged to an ancient population tha used to dwell in Beringia.-|||-D)She migrated to central Alaska sometime during the last ice age.-|||-47.Which of following is mentioned by Ben Potter as the "exciting new puzzles"?-|||-A)Whether Xach`tee`anenhT `eedeGaay belonged to Native American groups.-|||-B)How Xach`tee`aanenhT "eedeGaay`s population separated from major groups.-|||-C)Why the two major Native American groups diverged from the common ancestor.-|||-D)Whenthe populations cross over the land bridge and arrived in the Americas.-|||-48.What can we infer from the two possible migration models?-|||-A)The first model seems to have acquired more supports from research data.-|||-B)The first split occurred about 15,700 years ago according to the first model.-|||-C)The split of ancient Native Americans happened on the ice sheets in the second model.-|||-D)The second model fails to mention the ending of the Ancient Beringians.-|||-49. Researchers compare their study to a murder mystery as they share similarity in __-|||-A)the way of approaching the truth C) the analysis of the course of books-|||-B)the need to acquire new clues D) the pursuit for the real story-|||-50.What can be the best title of this passage?-|||-A)Debates Aroused by the Remains of Sunrise Girl-Child-|||-B)New Puzzles about the Ancient Beringia to Be Solved-|||-C)TuRnilk Mind.lttedmatinSection C Passage One Questions 46 to 50 are based on the following passage. A six-week old infant who died some 11,500 years ago in central Alaska is now providing clues about how the Americas first came to be populated. Genomic data from remains of the girl -named"Xach'itee'aanenhT'eedeGaay"(Sunrise Girl-Child) by the local indigenous community-broadly support a migration model that scientists have long argued for, while also revealing the existence of an ancient population previously unknown to science. The girl was a member of an ancient population that the report authors have named"Ancient Beringians". Beringia is the name given to Alaska, Eastern Siberia, and the land bridge that periodically connected the two during the last ice age. The findings suggest a re vised family tree:a single ancestral Native American group split from East Asians about 35 ,000 years ago, before later splitting, some 20,000 years ago, into two distinct groups. One was the Ancient Beringians, and the other constituted the ancestors of modern-day Native Americans, who later split into northern and southern populations about 15,700 years ago. "Trying to integrate these findings with what we know from archaeology (考古学)and paleoecology (古 生态学)presents exciting new puzzles,"says Ben Potter, an anthropologist (人类学家)at the University of Alaska."The peopling has been shown now to be more complex than we thought previously."Scientists have sought ancient human remains from Beringia at the end of the last ice age,but Xach'itee'aanenhT'eedeGaay's genome neid a surprise:1 t was clearly Native American, but not from either of the two major modern Native American groups. It represented a population that diverged from that common ancestor. All of this helps narrow down and strengthen the theories of just how those populations arrived in the Americas. But mysteries remain, including definitive answers about where and when some of these population splits occurred and which migration routes were used. Researchers outline two possible models. In one scenario,which Dr. Potter favors since it matches well with archaeological data and paleoecological data, the split occurred in Northeast Asia,and the two separate s later crossed over the land bridge prior to 15,700 years ago, when the Native American ancestors populauons she other theory, the ancestral population had already arrived in Alaska or eastern berngia by split again. 1 20,000 years ago, and the split occurred there,with the second split into North and South American populations occurring south of the ice sheets. What happened to the Ancient Beringians? They might have died out,says Potter, or they could have been absorbed by Northern Native Americans who migrated back to the far North. Researchers li ken the puzzle to a murder mystery."You read the book, and the author reveals new clues over the course of the book. Every time a new genome is analyzed and reported,it provides a new clue that's making the pathway to uncover the real story that much clearer." 46. What can we learn about the girl called"Xach'itee'aanenhT'eedeGaay"? A) She was found dead about six-week old some 11,500 years ago. B)She provided new clues for the study on the first American population. C) She belonged to an ancient population that used to dwell in Beringia. D)She migrated to central Alaska sometime during the last ice age. 47. Which of following is mentioned by Ben Potter as the"exciting new puzzles"? A) Whether Xach'itee'aanenhT'eedeGaay belonged to Native American groups. B)How Xach'itee'aanenhT'eedeGaay's population separai ed from frc…A Hajor groups. C)Why the two major Native American groups diverged from the common ancestor. D)When the populations crossed over the land bridge and arrived in the Americas. 48. What can we infer from the two possible migration models? A) The first model seems to have acquired more supports from research data. B)The first split occurred about 15,700 years ago according to the first model. C)The split of ancient Native Americans happened on the ice sheets in the second model. g of the Ancient Beringians. D)The second model fails to mention the enate 49. Researchers compare their study to a murder mystery as they share similarity in _A)the way of approaching the truth C)the analysis of the course of books B)the need to acquire new clues D)the pursuit for the real story 50. What can be the best title of this passage? A) Debates Aroused by the Remains of Sunrise Girl-Child B)New Puzzles about the Ancient Beringia to Be Solved C) Two Possible Models of Native American Migration D)Native American Family Tree Sprouts a New Branch

Section C-|||-Passage One-|||-Questions 46 to 50 are based on the following passage.-|||-A six-week old infant who died some 11,500 years ago in central Alaskais now prov clues about how-|||-the Americas first came to be populated.-|||-Genomic data from remains of the girl-named "Xach`tee`aanenhT eedeGaay"(Sumrise Gin--ch by-|||-the local indileenous com broadly support a migrati model that scientists have long argued for,-|||-while also revealing the existence of an ancient population previously unknown to science. The girl was a-|||-member of an ancient population that the report authors have named "Ancient Beringians Beringia is the-|||-name given to Alaska,Eastern Siberia,an the land bridge that periodically connect the two during the last-|||-ice age.-|||-The findings suggest a revised family tree:a single ancestral Native American group split from East Asians-|||-about 35,000 years ago,before later splitting,some 20,000 years ago, into two distinct groups. One was the-|||-Ancient Beringians,and the other constituteted t ancestors of moden-day Na Americans,who later split-|||-into northern and southem populations about 700 years ago.-|||-Trying to integrate these findings with what we know fromanthaesingy(考古学)and paleoecology(古-|||-生态学)presents exciting new puzzles," says Ben poter,an anthnglintict(人类at the University of-|||-Alaska."The peopling has been shown now to be more complex than we thought previously."Scientists have-|||-sought ancient human remains from Beringia at the end of the last ice age,but Xach`itee`aanenhT"eedeGaay`s-|||-genome held a surprise:it was clearly Native American, but not from either of the two major modern Native-|||-American groups.It represented a population diverged from that common ancestor.-|||-All of this helps narrow down and strengthen the theories of just how those populations arrived in the-|||-Americas. But mysteries remain, including definitive answers about where and when some of these population-|||-splits occurred and which migration routes we used.-|||-Researchers outline two possible models.In one scenario,which Dr. Potter favors since it matches well-|||-with archaeological data paleoecological data,the split occurred in Northeast Asia,and the two separate-|||-populations later crossed over the land bridge prior to 15,700 years ago,when the Native American ancestors-|||-split again.In the other theory,the ancestral population already arrived in Alaska or eastem Beringia by-|||-20,000 years ago,and the split occurred there,with the second split into North and South American populations-|||-occurring south of the ice sheets.What happened to the Ancient Beringians?They might have died out, says-|||-Potter,or they could have been absorbed by Northern Native Americans who migrated back to the far North.-|||-Researchers liken the puzzle to a murder mystery."You read the book,and the author reveals new clues-|||-over the course of the book.Every time a new genome is analyzed and reported,it provides a new clue that`s-|||-making the pathway to uncover the real story that much clearer."-|||-46.What can we learn about the girl called "Xach`itee aanenhT`eedeGaay"?-|||-A)She was found dead about six week old some 11,500 years ago.-|||-B)She provided new clues for the study on the first American population.-|||-C)She belonged to an ancient population that used to dwell in Beringia.-|||-D)She migrated to central Alaska sometime during the last ice age.-|||-47.Which of following is mentioned by Ben Potter as the "exciting new puzzles"?-|||-A)Whether Xach itee aanenhT eedeGaay belonged to Native American groups.-|||-B)How Xach`tee`aanenhT "eedeGaay`s population separated from major groups.-|||-c)Why the two major Native American groups diverged from the common ancestor.-|||-D)Whenthe populations cross over the land bridge and arrived in the Americas.-|||-48.What can we infer from the two possible migration models?-|||-A)The first model seems to have acquired more supports from research data.-|||-B)The first split occurred about 15,700 years ago according to the first model.-|||-C)The split of ancient Native Americans happened on the ice sheets in the second model.-|||-D)The second model fails to mention the ending of the Ancient Beringians.-|||-49. Researchers compare their study to a murder mystery as they share similarity in __-|||-A)the way of approaching th truth C)the analysis of the course of books-|||-B)the need to acquire new clues D)the pursuit for the real story-|||-50.What can be the best title of this passage?-|||-A)Debates Aroused by the Remains of Sunrise Girl-Child-|||-B)New Puzzles about the Ancient Beringia to Be Solved-|||-C) Two Possible Models of Native American MigrationSection C Passage One Questions 46 to 50 are based on the following passage. A six-week old infant who died some 11,500 years ago in central Alaska is now providing clues about how the Americas first came to be populated. Genomic data from remains of the girl -named"Xach'itee'aanenhT'eedeGaay"(Sunrise Girl-Child) by the local indigenous community-broadly support a migration model that scientists have long argued for, while also revealing the existence of an ancient population previously unknown to science. The girl was a member of an ancient population that the report authors have named"Ancient Beringians". Beringia is the name given to Alaska, Eastern Siberia, and the land bridge that periodically connected the two during the last ice age. The findings suggest a re vised family tree:a single ancestral Native American group split from East Asians about 35 ,000 years ago, before later splitting, some 20,000 years ago, into two distinct groups. One was the Ancient Beringians, and the other constituted the ancestors of modern-day Native Americans, who later split into northern and southern populations about 15,700 years ago. "Trying to integrate these findings with what we know from archaeology (考古学)and paleoecology (古 生态学)presents exciting new puzzles,"says Ben Potter, an anthropologist (人类学家)at the University of Alaska."The peopling has been shown now to be more complex than we thought previously."Scientists have sought ancient human remains from Beringia at the end of the last ice age,but Xach'itee'aanenhT'eedeGaay's genome neid a surprise:1 t was clearly Native American, but not from either of the two major modern Native American groups. It represented a population that diverged from that common ancestor. All of this helps narrow down and strengthen the theories of just how those populations arrived in the Americas. But mysteries remain, including definitive answers about where and when some of these population splits occurred and which migration routes were used. Researchers outline two possible models. In one scenario,which Dr. Potter favors since it matches well with archaeological data and paleoecological data, the split occurred in Northeast Asia,and the two separate s later crossed over the land bridge prior to 15,700 years ago, when the Native American ancestors populauons she other theory, the ancestral population had already arrived in Alaska or eastern berngia by split again. 1 20,000 years ago, and the split occurred there,with the second split into North and South American populations occurring south of the ice sheets. What happened to the Ancient Beringians? They might have died out,says Potter, or they could have been absorbed by Northern Native Americans who migrated back to the far North. Researchers li ken the puzzle to a murder mystery."You read the book, and the author reveals new clues over the course of the book. Every time a new genome is analyzed and reported,it provides a new clue that's making the pathway to uncover the real story that much clearer." 46. What can we learn about the girl called"Xach'itee'aanenhT'eedeGaay"? A) She was found dead about six-week old some 11,500 years ago. B)She provided new clues for the study on the first American population. C) She belonged to an ancient population that used to dwell in Beringia. D)She migrated to central Alaska sometime during the last ice age. 47. Which of following is mentioned by Ben Potter as the"exciting new puzzles"? A) Whether Xach'itee'aanenhT'eedeGaay belonged to Native American groups. B)How Xach'itee'aanenhT'eedeGaay's population separai ed from frc…A Hajor groups. C)Why the two major Native American groups diverged from the common ancestor. D)When the populations crossed over the land bridge and arrived in the Americas. 48. What can we infer from the two possible migration models? A) The first model seems to have acquired more supports from research data. B)The first split occurred about 15,700 years ago according to the first model. C)The split of ancient Native Americans happened on the ice sheets in the second model. g of the Ancient Beringians. D)The second model fails to mention the enate 49. Researchers compare their study to a murder mystery as they share similarity in _A)the way of approaching the truth C)the analysis of the course of books B)the need to acquire new clues D)the pursuit for the real story 50. What can be the best title of this passage? A) Debates Aroused by the Remains of Sunrise Girl-Child B)New Puzzles about the Ancient Beringia to Be Solved C) Two Possible Models of Native American Migration D)Native American Family Tree Sprouts a New Branch

Why your leisure time is important-|||-When was the last time you took advantage of your free time ?I understand life is busy.Even-|||-when you`re not working,there`s always something that needs to be done. 1 Have a look at some-|||-of the reasons.-|||-It reduces stress.-|||-Most of us experience stress in our jobs. 2 Research shows that people who step away from-|||-work on the weekends do experience less stress than those who continue working even on days off.-|||-It improves your mood.-|||- 3 It`s hard to escape that feeling if you never allow yourself to step outside that atmosphere.-|||-Sometimes,a little time away from a frustrating situation can help you overcome the problem.-|||- 4 .-|||-When we`re taking on too much work,we often become slower in the workplace,we make-|||-more mistakes and it ends up costing us more time in the end.Stepping back from work helps clear-|||-our minds.We can return to work refreshed and ready to accomplish more.-|||-It helps you achieve work-life balance-|||-Work-life balance is a growing priority for many professionals-especi those entering the-|||-so-called"retirement years". 5 Taking your leisure time seriously allows you to establish rules-|||-between when you are working and when you are not.-|||-It`s good to be proud of your work ethic,but keep in mind that leisure time is something to be-|||-embraced, not ignored.-|||-A.It makes you more productive.-|||-B.It keeps you physically healthy.-|||-C.But while staying busy is important,so is leisure time.-|||-D.Allowing yourself time to relax doesn`t mean you have to be inactive.-|||-E.But in order to achieve that,one needs to know where to separate the two.-|||-F.The demands of work and issues you run into on the job can be frustrating.-|||-G.It`s unpleasant but if we can manage it,then we often learn to live with it effectively.

The magazine Reader s Digest is famous for making complicated subjects_9_to millions of readers.

【题目】Directions: For this part, you will write a short passage entitled T he Internet an the Youth. You should write at least 120 wordsfollowing the outline given below.1.互联网给年轻人带来许多便利之处2.但互联网并非总是有帮助的、有益健康的3.以我之见..

11.(填空题,35.0分)-|||-Directions: In this section,there is a passage with ten blanks.You are required to select one word for each-|||-blank from a list of choices given in a word bank following the passage. Read the passage through carefully-|||-before making your choices.Each choice in the bank is identified by a letter.Please write the corresponding-|||-letter for each item on Answer Sheet.You may uot use any of the words in the bank more than once.(注-|||-意:答案只需填写单词所对应的大写字母)-|||-A.potential B.uncomfortable C.adventure plain E thrilled-|||-F.mistakes G.independent H. concerned 1.charge J.adults-|||-Going to college is a big step and a great 1 __ for young people.Most of the young are-|||-2 __ that they are ready to be 3 __ .However, some parents are 4 __ too much about-|||-whether their children have the 5 __ to handle things well,especially in their freshman year.One day.-|||-at the registrar's office of a college,I noticed how parents are behaving with their college-age children-|||-nowadays.Obviously.students are young 6 __ and can handle registration by themselve but their-|||-parents completely contro the situation.In a seminar for teaching assistants. I was surprised to hear that-|||-parents often go to their office to 7 __ about marks and assignments their childre have got.What I-|||-have seen and heard has left me feeling 8 __ .Unlike my parents allowing me to make 9 __ in-|||-my life.parents of today's college students seem never to give their children a chance to take 10 __ _