题目内容

Computers have beaten human world champions at chess and, earlier this year, the board game Go. So far, though, they have struggled at the card table. So we challenged one AI to a game.

Why is poker(扑克)so difficult? Chess and Go are “information complete” games where all players can see all the relevant information. In poker, other players’ cards are hidden, making it an “information incomplete” game. Players have to guess opponents’ hands from their actions----tricky for computers. Poker has become a new benchmark for AI research. Solving poker could lead to many breakthroughs, from cyber security to driverless cars.

Scientists believe it is only a matter of time before AI once again vanquishes humans, hence our human-machine match comes up in a game of Texas Hold’s Em Limit Poker. The AI was developed by Johannes Heinrich, researcher studying machine learning at UCL. It combines two techniques: neural(神经的)networks and reinforcement learning(强化学习).

Neural networks, to some degree, copy the structure of human brains: their processors are highly interconnected and work at the same time to solve problems. They are good at spotting patterns in huge amounts of data. Reinforcement learning is when a machine, given a task, carries it out, learning from mistakes it makes. In this case, it means playing poker against itself billions of times to get better.

Mr Heinrich told Sky News: “Today we are presenting a new procedure that has learned in a different way, more similar to how humans learn. In particular, it is able to learn abstract patterns, represented by its neural network, which allow it to deal with new and unseen situations.”

After two hours of quite defensive play, from the computer at least, we called it a draw.

1.Why can’t the computer beat humans at the poker game?

A. Because humans are cleverer than the computer

B. Because humans practice playing the poker game every day

C. Because the computer can’t know the other players’ cards completely

D. Because the computer can’t learn the regular rules of the poker game

2.What does the underlined word “vanquishes” in Paragraph 3 mean?

A. Leaves B. Defeats C. Cheats D. Serves

3.What do we know about the reinforcement learning of AI?

A. It solves problems correctly every time

B. It is the same as the learning of humans

C. It learns from the mistakes appearing in a task

D. It is more developed than the studying ways of humans

4.What can be inferred from the text?

A. The new procedure of AI has some features of humans

B. Computers are stronger than humans in every aspect

C. Humans will beat computers at playing poker forever

D. Scientists feel unhappy about the result of the poker game

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I see people trapped in a pathological (病态的) relationship with time-sucking technology,where they serve technology more than technology serves them.I call this technology servitude.I am referring to a loss of personal freedom and independence because of uncontrolled consumption of many kinds of devices that eat up time and money.
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Dictionaries are not closed books. There is still plenty of room for more words in these great vocabulary authorities.

Dictionaries are not closed books. There is still plenty of room for more words in these great vocabulary authorities. New words are continually being created and added to our language. And many of today's word experts can credit a famous mathematician with the creation of the method by which they develop many new words. The mathematician was an Englishman named Charles L. Dodgson. In addition to working with figures, Dodgson wrote books. His imaginative stories and poems have made Dodgson beloved to generations of readers. We know him, however, not by the name of Dodgson but by his pen name, Lewis Carroll.

Lewis Carroll has delighted countless readers, young and old, with Alice in Wonderland, Through the Looking Glass, and numerous poems. In these works, Carroll developed dozens of nonsensical words such as "chortle" and "galumph". Many of these words are combined naturally with more common words in the English language. Carroll referred to his made-up words as "portmanteau" words, named after a kind of leather suitcase that opens into two compartments. The name was well suited, because most of Carroll's words had two compartments. Rather than being entirely fabricated(虚构), they were usually made from the combined parts of two different words. A "snark", for example, clearly came from a snake and a shark.

Although Carroll died long ago, his technique continues to be used today. We clearly see his influence in such words as smog, brunch, and guesstimate.

1.What does the underlined sentence probably mean according to the passage?

A. Dictionaries are open to the public.

B. Dictionaries are helpful to the public.

C. Dictionaries are ready to welcome new words.

D. The vocabularies in dictionaries are limited.

2.Dodgson's made-up words ________.

A. are based on different words

B. are borrowed from other languages

C. all come from his poems

D. are still widely used

3.This passage is mainly about ________.

A. how Dodgson wrote his works

B. how English words are created

C. how a dictionary is written

D. how Dodgson created new words

The Diet Zone: A Dangerous Place

Diet Coke ,diet Pepsi, diet pills, no-fat diet, vegetable diet…We are surrounded by the word “diet” everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.

Diet products significantly weaken us psychologically. On one level, we are not allowing our brain to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the scale instead. All we have to do is to swallow or recognize the word “diet” in food labels.

On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink,we are telling ourselves without our awareness that we don’t have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance and struggle.

The danger of diet products lees not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients. Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products my not be nutritional,and the chemicals that go into diet products are potentially dangerous.

Now that we are aware of the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological harm that comes from using them.

1.From Paragraph 1, we learn that__________.

A. diet products fail to bring out people’s potential

B. people have difficulty in choosing diet products

C. diet products are misleading people

D. people are fed up with diet products

2.One psychological effect of diet products is that people tend to______.

A. try out a variety of diet foods

B. hesitate before they enjoy diet foods

C. pay attention to their own eating habits

D. watch their weight rather than their diet

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A. losing weight is effortless

B. it costs a lot to lose weight

C. diet products bring no pain

D. diet products are free from calories

4.Which of the following shows the structure of the passage ?

A. B.

C. D.

19.Good morning,ladies and gentlemen.Today,I would like to draw your attention to a few of our laws.Because we hope that your visit in England will be a pleasant one.
The first one is about drinking.Now,you may not buy alcohol (酒) in this country if you are under 18years old,nor may your friends buy it for you.
Secondly,noise.Enjoy yourselves by all means,but please don't make unnecessary noise,especially at night.We ask you to respect other people who may wish to be quiet.
Thirdly,crossing the road.Be careful!The traffic moves on the left side of the road in this country.Use pedestrian crossings (人行横道) and do not take any chances when crossing the road.
My next point is about litter (throwing away waste material in a public place).It is
an offense (违法行为) to drop litter in the street.When you have something to throw
away,please put it in your pocket and take it home,or put it in a litter bin.
Finally,it is against the law to buy cigarettes or tobacco (烟草) if you are under
16years old.
I'd like to finish by saying that if you require any sort of help or assistance,you
should contact your local police station,who will be pleased to help you.
Now,are there any questions?

25.The main purpose of this speech would be toB.
A.attract more people to travel in England
B.give advice to travellers to the country
C.prepare people for international travel
D.inform people of the punishment for breaking laws
26.How many laws are there discussed in the speech?D
A.Three 
B.Six 
C.Four 
D.Five
27.From the speech we learn thatD.
A.in this country,if you are under 18years old,you may not buy alcohol,but your friend can buy it for you
B.because the traffic moves on the right of the road,you must use pedestrian crossing when crossing the road
C.you can't make noise except at night
D.you may not buy cigarettes or tobacco unless you are over 16years old.
28.Who should you contact if you need help?C
A.The police station of England 
B.Your guide
C.Your local police station 
D.Your hotel.

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