Artificial intelligence products are not new. However, researchers have been working to improve the technology. Now virtual assistants, like Siri and Alexa, can have short conversations with us. AlphaGo taught itself to play Go and became better than the top human players.

Now an AI system has been tasked with passing a multiple-choice exam. The goal is to improve machines’ language understanding and logic with so-called computer vision.

A system named Aristo was developed by the Allen Institute for Artificial Intelligence, a lab in the United States city of Seattle. It recently passed an eighth-grade science exam taken by many US students, The New York Times reported. It correctly answered more than 90 percent of the questions. Then it was given a twelfth-grade exam. It scored more than 80 percent.

It’s an example of the progress in AI development. Four years ago, 700 computer scientists tried to develop AI systems that could pass these kinds of exams. None scored higher than 60 percent.

Aristo was able to pass the exams because it can not only understand language but also use logical thinking to solve difficult problems. For example, it can understand what a forest fire is and how it could endanger animals like squirrels or decrease the food supply they need.

The system used BERT, a kind of neural （神经的）network technology developed by Google, to answer the questions. BERT has “read” thousands of English articles If it looks at a sentence with a missing word, it can correctly guess what the word is With BERT’s help, Aristo “read” many multiple-choice questions and answers. Over time, it was able to find logical patterns on its own.

It may still be in the earliest stages, said Jingjing Liu, a Microsoft researcher who has been working on similar technologies “We can’t compare this technology to real human students and their ability to reason.”

However, Aristo’s success means that AI systems are getting better at understanding users, and we might see improved search engines and hospital databases （数据库）in the near future.

1.Why did scientists develop Aristo?

A.To make better multiple-choice exams.

B.To improve AI’s ability to teach itself.

C.To shorten the time AI needs to “read” information.

D.To improve the language understanding and logic of AI.

2.What can we know about Aristo from its exam results?

A.It was smarter than most US students.

B.It could only deal with science questions.

C.It was best at understanding English.

D.It did better than other AI systems in similar tasks.

3.What does the sixth paragraph talk about?

A.How Aristo teaches itself. B.How Aristo reads English articles.

C.How Google developed BERT. D.How Google designed Aristo.

4.What can we learn from Jingjing Liu’s words?

A.AI will soon replace humans in many tasks.

B.Aristo still cannot compare to human reasoning skills.

C.Humans can’t live without AI in the future.

D.Aristo performs better with a larger database.

    Reading books and looking at pictures is great, but nothing assists learning like travel, especially for teenagers. Not only do they get to see a world beyond their neighborhood, they also gel to experience it — feel it, taste it, hear it and better understand the world around them. After nearly four decades in the classroom and traveling the world, Phyllis Duvall Bailey knew this perhaps better than anyone else.

Becoming involved with the work in AKA Sorority Inc in US, she worked to educate children about the United Nations. There was no doubt in Bailey’s mind that the lessons would mean so much more if the students could see things for themselves. Starting in 2015, Bailey, 82, set out to take her students to the UN Headquarters in New York City to give them a “Window Seat to the World”, and thus transform them into global citizens. Indeed, it is a great opportunity to give students national and international exposure. Since Bailey saw the students as future leaders, she was desperate to expose them to the UN, its mission, its agendas (议程) and its supporting organizations. She decided to give ＄10,000 (70,720 yuan) of her own money to pay for the late June trip, enough to take 10 student ages 14-17 on a four-night stay in New York. There, they had guided tours of the UN Headquarters and the New York City harbor.

It was Quenyaun Payne’s first trip to the city and Taylor Sappington’s second. Payne, 17, is a senior at McEachern High School in the state of Georgia, US. Sappington, 15, is a junior at Therrell High School in Atlanta, Georgia, US. Both said their visit to the UN was inspiring, “I liked how countries are not only working together, they’re focused on common goals like global warming and keeping the peace,” Sappington said. Payne commented, “The trip was amazing. I’m so thankful Mrs. Bailey made it possible.”

Actually, there are a lot of people grateful for the retired teacher’s effort. The United Nations Association of Atlanta recently gave Bailey its Humanitarian Award, and the United Nations Association of the US awarded her with the National Education Award. But Bailey wasn’t looking for recognition or even gratitude. Over those four days in New York, she’d already felt it, seen it in the eyes of those 10 teenagers, Payne and Sappington included, who made the trip. “It has been a real joy to get to see and watch their reaction to new experiences,” she said.

1.How did Bailey help students?

A.She offered students volunteer opportunities at the UN.

B.She paid for them to go to school.

C.She paid for trips that helped students see the world

D.She taught students life-long learning skills.

2.What can we know from Sappington’s words?

A.He is determined to work for the UN in the future.

B.He would like to contribute to global affaire.

C.He found the trip to the UN meaningful.

D.He wants to visit New York City again

3.What would Bailey probably agree with?

A.Students today are more willing to seek new experiences.

B.Winning an award motivated her to work hard.

C.Classroom teaching limits students’ development.

D.Students’ gains are more important than the recognition of her efforts.

    When Maleficent first appeared in cinemas five years ago, with her sculpted cheekbones and twisted devil horns, she became an instant hit with audiences around the world. Now, she’s back with a new movie.

The sequel to Disney’s 2014 film, Maleficent: Mistress of Evil, hit Chinese mainland cinemas on Oct 18. It was expected to be one of the hottest film releases of the month.

What makes this film popular with audiences?

“Maleficent （2019） is a fierce fairy tale about the joy of being uniquely individual,” Carla Renata, a US film critic, wrote on Twitter.

The sequel features new and distinctive characters, Maleficent, played by US actress Angelina Jolie, is an evil fairy witch who hates human beings for the betrayal of her human lover. Then we have Princess Aurora, played by US actress Elle Fanning, who is kind and strong. Even though Maleficent cursed her and took her captive, Aurora refuses to hate fairies. A new character, Queen Ingrith, is Aurora’s mother-in-law. She’s a typical villain who will spare no effort to divide Maleficent and Aurora. She hopes lo divide humans and fairies forever.

“These characters are so unique that you would remember even many years after you finished watching the movie,” said Renata.

Apart from the strong cast of characters, the movie’s theme of inclusiveness and cooperation between two distinct groups is meant to enlighten audiences. Both fairies and humans must find a way to understand each other if they want to protect the peaceful land where magical creatures live together.

“The film is about kindness and acceptance and tolerance,” Fanning told Metro, “We want people to be kind to one another... to understand that it is wrong to out people that are different.”

With such a powerful theme, there’s no wonder that USA Today says it’s among Disney’s best live-action sequels.

1.What do we know about the character Maleficent?

A.She fights for human beings. B.She betrays her human lover.

C.She sees humans as her enemies. D.She makes friends with Aurora.

2.What did Renata think makes the 2019 Maleficent film special?

A.A fairy tale. B.Unique characters.

C.A powerful theme. D.Many film stars playing roles.

3.What does the 2019 Maleficent film want to tell viewers?

A.Peace is the key to happiness.

B.It takes effort to make the world a better place.

C.Humans should care about other creatures.

D.We should be kind to and tolerant of others.

阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。

Forty-three years seems like a long time to remember the name of a mere acquaintance. I have forgotten the name of the old lady, who was a customer on the paper route in my hometown when I was a twelve-year-old boy. Yet it seems like just yesterday that she taught me a lesson in forgiveness which I shall never forget.

On a Saturday afternoon, a friend and I were throwing stones onto the roof of the old lady’s house. The object of our play was to observe how the stones changed to missiles (导弹) as they rolled to the edge of the roof and shot out into the yard like comets (彗星) falling from the sky.

I found myself a perfectly smooth stone and sent it for a ride. The stone was too smooth, however, so it slipped from my hand as I let it go and headed straight not for the roof but for a small window on the old lady's back porch (走廊). At the sound of broken glass, we knew we were in trouble and ran away.

I was too scared about getting caught that I was concerned about the old lady with the broken window all the time that night. However, a few days later, when I was sure that I hadn’t been discovered, I started to feel guilty for her misfortune. She still greeted me with a smile each day when I gave her the paper, but I was no longer able to look into her eyes.

I made up my mind that I would save my paper delivery money, and in three weeks I had the seven dollars that I thought would cover the cost of her window. I put the money in an envelope with a note explaining that I was sorry for breaking her window and hoped that the seven dollars would cover the cost for repairing it.

注意：

1.所续写短文的词数应为150左右；

2.应使用5个以上短文中标有下划线的关键词语；

3.续写部分分为两段，每段的开头语已为你写好；

4.续写完成后，请用下划线标出你所使用的关键词语。

Paragraph 1:

I waited until it was dark.

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Paragraph 2:

The next day, I handed the old lady her paper.

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

假定你是李华，你的英国朋友Leslie给你发邮件询问你在新型冠状病毒肺炎疫情期间是怎么度过。请你根据下列要点写一封邮件回复她。

1.爆发时间；

2.怎么度过；

3.你的感受。

注意：1.词数80左右；

2.可以适当增加细节，以使行文连贯；

3.开头结尾已为你写好，不计入总词数。

参考词汇：

疫情epidemic situation

新型冠状病毒肺炎COVID-19 (Corona Virus Disease 2019)

Dear Leslie,

I’m glad to share with you what I’m doing in the epidemic situation.

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Thank you for your concern. I’m looking forward to your reply.

Yours,

Li Hua

    History rocks! But your poor history teacher was not able to_________all the fun little bits. Whether these bits were sad, ridiculous, or heartwarming, we think it’s a shame that you_________the bits. And now we help you_________that.

Famous for his beard, Abraham Lincoln was an incredible_________. Though he wasn’t actually born in a very poor family, he did have a relatively_________childhood. Hard labor was part of the daily life in the area where Lincoln grew up, and, at the age of nine, he_________his mother because of disease. As President, he would grow to be history’s_________president of the United States, standing proud at 1.93m. Even after he died, his story didn’t quite_________. In 1876, a group of bad fellows wanted to hold Lincoln’s body for ransom (赎金) at the fee of $ 20000 and the_________of one of their accomplices (同谋犯). They were caught and____________to a year in prison.

Theodore Roosevelt’s story is one of privilege, big personalities, and bigger sticks. Teddy Roosevelt was born to the____________Roosevelt family in New York City, quite different from Lincoln, but he was known to be a very____________child. He even took up boxing at a young age to____________against his weak body. Roosevelt had a(n)____________to the left eye caused by boxing. He took many trips to Africa and South America where he hunted and studied numerous exotic species.

His best story, perhaps, concerns a speech in Milwaukee in 1912. During the speech, a man tried to____________Roosevelt's life with a gun, but the bullet was slowed down by his folded speech craft and eyeglass case. Roosevelt____________told the crowd he hadn't been shot. He____________giving his speech without stopping,____________when it was finished, he headed over as soon as possible for the hospital to get the bullet____________. Mr. Roosevelt, well____________!

1.A.state B.interpret C.describe D.cover

2.A.put aside B.missed out C.left out D.cast about

3.A.make out B.pick up C.draw on D.make up for

4.A.figure B.character C.creature D.brain

5.A.intact B.tough C.rich D.light-hearted

6.A.lost B.sacrificed C.possessed D.rescued

7.A.wisest B.strongest C.tallest D.heaviest

8.A.arise B.shrink C.rewind D.end

9.A.promotion B.fame C.answer D.release

10.A.sentenced B.surrendered C.regulated D.shrank

11.A.exceptional B.wealthy C.common D.fundamental

12.A.aggressive B.active C.unhealthy D.confident

13.A.battle B.resist C.build D.cure

14.A.wound B.injury C.operation D.check

15.A.kill B.murder C.carry off D.knock out

16.A.patiently B.roughly C.immediately D.bravely

17.A.continued B.enjoyed C.Finished D.stopped

18.A.however B.therefore C.but D.otherwise

19.A.transferred B.removed C.relayed D.transmitted

20.A.talked B.lied C.shot D.played

    My husband and I had tried for many years to have children, but it just never happened. So we applied to be foster parents(养父母). We decided we should start with an older child for a number of reasons. Since we both worked, child care might be a problem. Our dog Corby might be a bit too energetic for a young child.1.We sat back and prepared to wait for the few months they thought it might take to get a school-age child to pass——which was why we were at a loss when the agency called us within weeks, just before Christmas, and asked if we would take Kaleb, a two-and-a-half-year-old boy, for a few months.

This wasn't what we had discussed a few weeks before.2.It was such short notice. We had made holiday plans and most of all, the boy was toddler(初学走路的孩子)! We went back and forth, and in the end, we just couldn't say no.

The day was set for Kaleb to arrive. We went outside to greet our little guest. But before we could even reach the child, I heard a noise from behind me.3.I gasped(因惊异吸气). Corby would frighten Kaleb——probably even knock him down.

Corby reached Kaleb before either of us could grab her. She hounded up to the boy and immediately began licking his face with joy.4.. His face light up with excitement, he cried, "Can this be my dog?

Kaleb came to stay those few months.5.Yes, we’adopted Kaleb. He became our son, and Corby…well, she couldn’t have been happier. She turned out to be Kaleb’s dog, after all.

A.Privately, I was full of doubts.

B.There were so many difficulties,

C.Eight and a half years later, he is still with us.

D.Turning, I saw Corby heading straight for the little boy.

E.In our hurry, we must not have closed the door completely.

F.And honestly,we were a little nervous about taking on a baby.

G.In response, this little boy threw his arms around the dog’s neck and turned toward us.

    On April 12th, two African American men walked into a Starbucks in Philadelphia, and sat down to wait for their friend.Because they had not bought anything, an employee asked them to leave.When the two men refused, the employee called the police, and in minutes, they were arrested.It was not until later that day that they were let go.

The video of this incident posted on Twitter went viral.People across the US were outraged.Unfortunately, these practices are not uncommon today.This incident is just one example of implicit bias(内隐偏见), something that is a part of human nature.

Most of the time, implicit bias refers to people showing negative associations towards people of a different race.Starting from a young age, these feelings develop unconsciously and naturally, because our brain draws associations based on our background, cultural environment and personal experiences.

Implicit bias affects our everyday speech and actions and these unconscious decisions can be harmful to our society.There have been many examples of blacks unfairly killed by white officers, such as in the cases of Philando Castile and Alton Sterling, which happened only two years ago.Implicit bias affects the justice system, our medical system where studies show minorities are less likely to be taken seriously, and job placements where white males are likely to be judged as more capable compared to women and other minorities.

Starbucks CEO Kevin Johnson and the police have publicly apologized to the two men, and Starbucks will be holding an anti-bias training meeting on May 29th. All Starbucks stores will be closed on that day.However, critics and experts have said that such training is done "for show" rather than to promote change.

To address this issue, many experts agree that what the world needs is a long-term program that targets the root cause.It also starts with promoting diversity in children from an early age when they have friends and playmates from different races and cultures.

1.What does the underlined word "outraged" in Paragraph 2 probably mean?

A.Very angry. B.Quite curious. C.Very delighted. D.Quite puzzled.

2.What is the fourth paragraph mainly about?

A.The nature of implicit bias. B.The examples of implicit bias.

C.The basic concepts of implicit bias. D.The negative effects of implicit bias.

3.What might experts think of the anti-bias training meeting?

A.It will be a shame for Starbucks B.lt will be a meaningless practice.

C.It will raise the police's reputation. D.lt will raise public awareness of anti-bias.

4.What might many experts agree with?

A.Starbucks should be closed.

B.Implicit bias should be ignored.

C.Children should be taught to avoid implicit bias.

D.Implicit bias should be dealt with by the policemen.

    A lot of us lose life’s tough situations by mounting a frontal attack when a touch of humor might well enable us to chalk up a win. Consider the case of a young friend of mine, Sam, who hit a traffic jam on the way to work. Although there was a good reason for Sam’s constant lateness-serious illness at home, he decided that this by-now-familiar excuse wouldn’t work any longer. His boss was probably already pacing up and down with a dismissal speech prepared.

He was. Sam entered the office at 9:35. The place was as quiet as a locker room. Sam’s boss approached him. Suddenly, Sam reached out his hand. “How do you do!” he said. “I’ m Sam Maynard. I’m applying for a job which I understand became available just 35 minutes ago. Does the early bird get the worm?” The room exploded in laughter. The boss smiled and walked back to his office. Sam Maynard saved his job with the only tool that could win a laugh.

Here is another example. An English hostess was giving a formal dinner for eight distinguished guests. She had asked her son to serve a large roast turkey. The boy only succeeded in dropping the bird onto the dining-room floor. Moving only her head, the hostess smiled at her son, “No harm, Daniel,” she said, “just pick it up and take it back to the kitchen”, she said clearly so he would think about what she was saying and bring in the other one. Some humorous words changed the dinner from a red-faced embarrassment to a ton of fun.

Humor is a most effective, yet frequently neglected(忽视)means of handling the difficult situations in our lives. It can be used for making up differences, saying sorry, saying no, criticizing, and getting the other person to do what you want without his losing face. Also, many believe that comedians on television are doing more today for racial and religious tolerance than people are in any other places.

Of course, humor is often more than a laughing matter. In its potent guises(有效的伪装), it has a Trojan-horse(特洛伊木马)nature: no one goes on guard against a laugh; we let it in because it looks like a little wooden toy. Once inside, however, it can turn a city to reform, to rebellion(反抗), to resistance.

1.What can the underlined words “chalk up” in Paragraph 1 be replaced by?

A.pay for B.respond to C.think of recording D.succeed in getting

2.How does the author explain the power of humor?

A.By using examples. B.By making comparisons.

C.By introducing study results. D.By setting clown general rules.

3.What does the author mean by mentioning humor’s Trojan-horse nature?

A.It is but a toy. B.It catches us unaware.

C.We usually resist its effect. D.We seldom really understand it.

    At the office that day, Martha was left to keep her eyes open until after the lunch hour. Then Mr Max Cohen brought her a document to copy. She was so anxious she had to start afresh three times. And when he came to fetch it, all that had been achieved were the words “Memorandum of an Agreement of Sale” typed across the top of the sheet. She shrank under his impatient assurance that it did not matter in the least, and she must take her time. Her fingers were heavy and trembling, and her head was thick. To type two pages of his small neat writing into something clean and pleasant to look at seemed to her, just then, an impossibly difficult task. He went home without coming to her desk again, and she decided she would come early next morning and do it before anyone else arrived.

Mrs Buss, on her way out, asked, “Have you got any certificates?” Martha said no. She had learned to type at home. Mrs Buss said nothing, but merely nodded absent-mindedly, for her eyes were on the elegant Mrs Jasper Cohen. Martha could barely see where she was going as she left the office. What she said to herself was, “I won’t spend the rest of my life typing this stupid jargon”.

She then went into the building of the ZambesiNews. She was going to see if Mr Spur, an old journalist whom she had known as a child, could offer her any kind of position. She was in the building about half an hour, and when she came out, her face was hot with embarrassment. It had been so painful she could not bear to remember what had happened. What she must remember was that she had no qualifications at all.

1.Why did Martha find her first day at the office difficult?

A.She was too nervous to think. B.Mr Cohen was not easy to please.

C.The task given to her was very difficult. D.She was not used to working under pressure.

2.By the end of the day, which of the following was true of Martha?

A.She had decided to work overtime. B.She hadn't finished her typing work.

C.She hadn't thought she would be blamed. D.She knew Mr Cohen was disappointed in her.

3.What might be Mrs Buss's attitude towards Martha?

A.She seemed eager to help her.

B.She seemed uninterested in her.

C.She seemed to have taken a dislike to her.

D.She seemed concerned about her lack of qualifications.