题型:任务型阅读 题类:常考题 难易度:普通
北京市海淀区2018-2019学年高二下学期英语期中考试试卷
AlphaZero--an Updated Model of AI
Soon after Garry Kasparov, the former world chess champion, lost his rematch against IBM's Deep Blue in 1997, the short window of human-machine chess competition slammed shut forever. Unlike humans, machines keep getting faster, and today a smartphone chess app can be stronger than Deep Blue. However, as people see with the new AlphaZero system, machine dominance has not ended the historical role of chess as a laboratory of cognition.
Much as airplanes don't flap their wings like birds, machines don't produce chess moves like humans do. Based on a generic algorithm (算法), AlphaZero incorporates deep learning and other AI techniques like Monte Carlo tree search to play against itself to develop its own chess knowledge. Unlike the traditional program Stockfish, which employs many preset evaluation functions as well as opening and endgame moves, AlphaZero starts out knowing only the rules of chess, with no preset human strategies. In a few hours, it plays more games against itself than have been recorded in human chess history. It teaches itself the best way to play, reevaluating the relative values of the pieces. It quickly becomes strong enough to win 28, draw 72, and lose none in a victory over Stockfish. Since AlphaZero can program itself, this superior understanding allows it to outclass the world's top traditional program despite calculating far fewer positions per second. It's the typical example of the cliché, "work smarter, not harder".
AlphaZero shows that machines can be the experts, not merely expert tools. Explainability is still an issue—it's not going to put chess coaches out of business just yet. But the knowledge it produces is information humans can learn from. AlphaZero is surpassing humans in a profound and useful way, and researchers are working on transferring the knowledge acquired from AlphaZero to other fields.
Machine learning systems aren't perfect. Even though great progresses have been achieved, AI algorithms are still struggling on open problems such as computer vision, natural language understanding... There will be cases where an AI will fail to detect exceptions to its rules. Therefore, as Kasparov writes, "We must work together to combine our strengths. I know better than most people what it's like to compete against a machine. Instead of raging against them, it's better if we're all on the same side."
①Machine dominance plays an important role in cognition study.
②AlphaZero knows opening and endgame moves before playing.
③AlphaZero develops chess strategies by playing against itself.
④Chess coaches have already been laid off throughout the world.
⑤Sometimes artificial intelligence may not discover exceptions to its rules.
②Paragraph 2:
③Paragraph 3:
④Paragraph 4:
A. The proper attitude to AI
B. The history of AlphaZero
C. The limitations of machines
D. The influences of AlphaZero
E. The working theory of AlphaZero
F. The fast development of machines
For many people, history classes are seen as no more than requirements for getting degrees in chemistry, biology, business, marketing, etc. {#blank#}1{#/blank#}. Below are a few reasons why it's vital that today's people continue to learn about the past.
Understanding where people come from plays a key role in understanding who they are.{#blank#}2{#/blank#} For this reason, it's extremely important to learn history in order to understand why people are the way that they are.
Through history classes, you can experience a shift (改革) in the way you think. {#blank#}3{#/blank#}It's important to develop minds to be able to consider problems from different angles. Finally, this shift can improve your ability to analyze and understand situations, to make educated decisions and to learn how to weigh the consequences related to each choice before you.
{#blank#}4{#/blank#}The idea that history repeats itself is rooted in truth. From wars to fashion to political trends, historians are often able to make predictions about the future based upon the past. By having a deep understanding of what happened in the past, today's people can better prepare for brighter futures by making the right decisions—instead of repeating old mistakes.
Many people may not believe that a degree in history can lead to a well-paid job. In fact, students who graduate with degrees in history can become lawyers, business owners, think tank members, educators, leaders in historical organizations writers and so on. {#blank#}5{#/blank#}.
A.Whichever job you take, it can provide a comfortable life. B.Learning about history can get students admitted to key universities C.That means you look at things from a new point of view. D.Learning from the past prevents future mistakes. E.The key to enjoying the study of history is to find classes that interest you. F.But the truth is that studying history is a wonderful way to prepare for a successful future. G.History has shaped cultures, attitudes and social structures; it has shaped the world and its citizens. |
It is necessary to be reasonable and flexible enough to avoid conflicts as much as possible and live in peace with others. {#blank#}1{#/blank#} If you have done all your best to avoid conflicts and you are still arguing, then read these effective tips on how to avoid conflicts.
● Don't get in the center of the conflict.
Sometimes people can get in the center of conflicts due to their enthusiasm for offering help. Frankly speaking, it is very unwise, because it can make you the main figure of the conflict. {#blank#}2{#/blank#} You should focus on your own life issues.
● Be kind.
{#blank#}3{#/blank#} Life is full of conflicts and disagreements, that's why you should find more conservative ways of dealing with them. For example, kindness can lessen the conflict.
● Try to be a peacekeeper.
Peacekeepers tend to cooperate with people without bad emotions which usually lead to arguments and even conflicts. “{#blank#}4{#/blank#}” This saying is the life motto of a natural-born peacekeeper. Don't worry if you are not a natural-born peacekeeper; you can gain this skill during life.
● Walk off.
When the conflict is gathering pace and you can't manage to control yourself, you should choose to handle the situation in another way. By all means, try to keep yourself away from stress. {#blank#}5{#/blank#} You should get away from the situation for a while.
A. The greatest victory is a battle not fought. B. Conflicts are unavoidable, so try to accept them. C. Weak people usually desire others to offer help and support. D. Let other people solve their problems without your presence. E. It is helpful to put some distance between yourself and the opponent. F. When someone pushes you to the limit, try to act kindly towards this person. G. Arguing can either break your friendship or affect your relationship to some degree. |
It's said that people travel to see the world. {#blank#}1{#/blank#} You walk down different streets, hear different accents, and see different views. All of this is a great way to absorb a new location and learn as much as you can.
But there's another reason why people travel to experience something new. {#blank#}2{#/blank#} So what kind of person are you? To tell the truth, you'll learn about yourself no matter where you go.
If you're a bookworm: Anyone studying English literature will love being on the soil of where such rich literary tradition was born. {#blank#}3{#/blank#} Maybe you'll run into one of your favorite characters during the trip.
If you're a Disney princess fan: Head over to Prague and you'll find the setting of every fairy tale you've ever dreamed of. Prague's study abroad programs are in English and are flexible.
If you're a history lover: {#blank#}4{#/blank#}Sure, that's a lot of places. But you've never felt quite as absorbed in the ancient world as walking around Athens and Rome.
If you're an adventure seeker: Consider going to Australia.{#blank#}5{#/blank#}
If you're indecisive: Just choose them all and take a Semester at Sea. You'll have your classes on a ship as it sails around the world, making stops at 15 cities in 11 countries.
A. And we hope to learn about ourselves in this newness. B. Visiting a new place will change the way of living. C. There are countryside tours connected to novels. D. Just a day-long trip is an adventure in itself. E. Go somewhere where history comes alive. F. And you do see the world when traveling. G. History always makes men wise |
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