AI（人工智能）products are not new. However, researchers have been working to improve the technology. Now virtual（虚拟的）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 （系统）has been tasked with passing a multiple-choice （多项选择） exam. The goal is to improve machines' language understanding and logic（逻辑）with so-called computer vision（视觉）.
A system named Aristo was developed by the Allen Institute for AI, 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 make the food supply they need less.
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 Al 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.The sixth paragraph mainly talks about how__________ .
A.Aristo teaches itself B.Aristo reads English articles
C.Google developed BERT D.difficult it was to design Aristo
4.What can be learned from Jingjing Liu's words?
A.AI will soon take the place of humans in many tasks.
B.Aristo still cannot compare to human reasoning skills.
C.Humans can't live without Al in the future.
D.Aristo can score more than 80 percent in a twelfth-grade exam.
科目：初中英语 来源：浙江省杭州市上城区2019-2020学年九年级上学期期末英语试卷 题型：阅读单选
We like to believe that before we make a decision, most of the time, we take time to consider all the facts carefully. However, Experts believe that only 5% of our decisions are based on a rational （理性的）thought process. So, what influences our decision-making process?
We often leave decision-making to our instincts（本能）.Scientists have found out that if we had the choice, we like to avoid pain rather than get something. In fact, we're twice as happy when we try to avoid a bad situation than when we experience a good one. This is why when companies send ads, they use phrases like "How to avoid...", "Don't miss out!", etc.
There are also physical reasons that affect our decision-making. Psychologist （心理学家）John Bargh carried on an experiment where people were asked what they thought of a fictional person, while holding a cold or a hot cup of coffee. Those holding the hot cup believed the person to be warmer and more sociable than those holding the cold cup. So, when temperatures rise, the more likely we are to believe in strangers.
Stress is another thing which affects our decisions. Different situations are more or less stressful for different people. Researchers have found, though, that women are more conservative （保守的）about decisions when stressed, while men are to make riskier choices.
It may come as a surprise but every day from the minute we get up, we have to make countless decisions, like what to wear, what coffee to have and so on. Each choice makes our brain a little bit more tired, and this affects our decision-making. That's why important people, like presidents wearing the same three suits all the time, want to limit the small choices and spend more brain power （力量）on the bigger ones.
1.Which of the following shows the structure of the passage?
A.
B.
C.
D.
2.What is the main idea of the last paragraph?
A.Every day we have to make lots of big decisions.
B.People sometimes judge a person by what he wears.
C.What people wear influences their decision making.
D.Making fewer decisions helps to save brain power.
3.What can we learn from the passage?
A.We make most of the decisions after our careful thinking.
B.People are likely to be happier to avoid something bad.
C.As the temperature is low, we are likely to believe others
D.People usually have risky decisions under heavy pressure.
4.The purpose of the passage is to__________.
A.tell us what influences decision-making B.advise people to make rational decisions
C.warn people not to make risky decisions D.show disadvantages of rational decisions
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Parents should keep an eye on little children all the time, they can easily get hurt.
A.or B.and C.but D.so
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阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Hello. I am Gina Smith. I have a pen friend, her name is Anna. She is 1. English girl. Now she is in China .She has some Chinese2. (friend) ,they always play volleyball after school. Anna plays volleyball very 3. (good), so she usually helps them.
Anna is a nice girl. She has healthy food everyday. Every morning, she has eggs and milk. She has lots of vegetables 4. lunch. She never 5. (eat) ice-cream. She says she doesn’t want 6.(be) fat.
Look, here7. (be) two nice photos. Two boys are in the first picture, they are 8. (Anna) brothers . In the next picture is a cat, 9.(it) name is Mimi. This is my pen friend, Anna. Do you like 10. (she)?
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I’m Linda. This is my room. ________ a nice, big room. Some things are _______ the room. The TV and computer are on the table. _______ my schoolbag? It isn’t on the table. Oh! It’s on the bed. My pencils aren’t on the bed. My pencils aren’t on the desk. They’re in my _______and it’s in my schoolbag. Are my key and ID card on the dresser（抽屉）? No, they aren’t. ________are on the desk.
1.A.It’s B.They’re C.I’m D.You’re
2.A.on B.of C.for D.in
3.A.What B.How C.What’s D.Where’s
4.A.library B.room C.desk D.pencilbox
5.A.They B.they C.it D.It
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翻译句子
1.你怎么啦？我发烧了。
_________________________________________________________
2.你怎样做香蕉奶昔呢？
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Each of them is doing his or her best at school . I am sure they will do something good for our country .
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A.Two B.Three C.Five
2.Who wants to be an artist ?
A.Joan B.Jack C.Kate.
3.What is Hob interested in?
A.medicine B.music C.science
4.What does Joan want to be ?
A.An astronaut. B.A teacher. C.A doctor.
5.Where does Alice want to teach?
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B．Father, mother and I go to see her.
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D．She is very happy.
E．The meal is very nice.
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Which of the following is not a natural disaster? .
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