ScienceDaily (May 28, 2010) --- Researchers at Oregon State University (OSU) have made important progress in work that should lead toward robots that can not only walk and run very well, but use little energy at the same time.
Studies are moving closer to designing robots that could do dangerous work, create prosthetic limbs(假肢)for humans that work much better than in the past, or even help some people who use wheelchairs to get “walking” abilities.
“Researchers have been working toward robot movement for a long time,” said Jonathan Hurst, a professor at OSU. “What we’ve done is to study what behavior is really possible for a robot.”
The movement of humans and other animals is difficult to copy. Using little energy, they can move easily over hard areas, and enjoy balance from muscles(肌肉). They have different ways to deal with forces, such as holding something hard in place rigidly(牢牢地), like the act of holding a cup of coffee level during a car ride. In their recent studies, the OSU researchers proved that these two abilities are mutually exclusive(相互排斥的). Humans deal with this problem by using pairs of muscles. For a robot, the more it’s able to do one of these tasks, the less able it is to do the other.
Presently, robots that can walk and run must be as rigid as possible while walking. But this way uses a lot of energy. The OSU researchers are working toward something that has similar or better performance, but uses far less energy, and is closer to the abilities of animals.
“So there’s no reason why we shouldn’t be able to build robots with good movement ability,” Hurst said. “Clearly this might be useful in highly dangerous situations. But I could also see great improvements possible with prosthetic limbs that work much better than present technology. ”
72. 1.The robots being studied by researchers at OSU ______.
A. are successful now
B. use little energy
C. do better than before
D. can run faster than humans
73. 2.Which of the following have researchers been studying all the time?
A. The robots’ movement
B. The robots’ weight
C. The robots’ sizes
D. The robots’ walking speed
74. 3.The underlined words “two abilities” in Para.4 refer to ______.
A. walking and running
B. walking and holding
C. moving and using little energy
D. moving and balancing
75. 4.According to Jonathan Hurst, we know that robots with good movement ability ______.
A. can be used in medical science
B. are only used in highly dangerous situations
C. will hardly be created in the future
D. will have a bad influence on man
高一英语阅读理解简单题
ScienceDaily (May 28, 2010) --- Researchers at Oregon State University (OSU) have made important progress in work that should lead toward robots that can not only walk and run very well, but use little energy at the same time.
Studies are moving closer to designing robots that could do dangerous work, create prosthetic limbs(假肢)for humans that work much better than in the past, or even help some people who use wheelchairs to get “walking” abilities.
“Researchers have been working toward robot movement for a long time,” said Jonathan Hurst, a professor at OSU. “What we’ve done is to study what behavior is really possible for a robot.”
The movement of humans and other animals is difficult to copy. Using little energy, they can move easily over hard areas, and enjoy balance from muscles(肌肉). They have different ways to deal with forces, such as holding something hard in place rigidly(牢牢地), like the act of holding a cup of coffee level during a car ride. In their recent studies, the OSU researchers proved that these two abilities are mutually exclusive(相互排斥的). Humans deal with this problem by using pairs of muscles. For a robot, the more it’s able to do one of these tasks, the less able it is to do the other.
Presently, robots that can walk and run must be as rigid as possible while walking. But this way uses a lot of energy. The OSU researchers are working toward something that has similar or better performance, but uses far less energy, and is closer to the abilities of animals.
“So there’s no reason why we shouldn’t be able to build robots with good movement ability,” Hurst said. “Clearly this might be useful in highly dangerous situations. But I could also see great improvements possible with prosthetic limbs that work much better than present technology. ”
72. 1.The robots being studied by researchers at OSU ______.
A. are successful now
B. use little energy
C. do better than before
D. can run faster than humans
73. 2.Which of the following have researchers been studying all the time?
A. The robots’ movement
B. The robots’ weight
C. The robots’ sizes
D. The robots’ walking speed
74. 3.The underlined words “two abilities” in Para.4 refer to ______.
A. walking and running
B. walking and holding
C. moving and using little energy
D. moving and balancing
75. 4.According to Jonathan Hurst, we know that robots with good movement ability ______.
A. can be used in medical science
B. are only used in highly dangerous situations
C. will hardly be created in the future
D. will have a bad influence on man
高一英语阅读理解简单题查看答案及解析
There is more to saying "sorry”, __________ a study led by researchers at Ohio State University found that effective apologies---ones that were accepted by the __________ and allowed both parties to move on with no hostility (敌意)---have six elements. They are expressing regret, explaining what went wrong, acknowledging responsibility, declaring repentance (悔悟) , offering to __________ the situation, and requesting forgiveness. The more of those components, the more likely the apology is seen as __________. Of course, not all errors are created equal. Therefore, you might need to adjust your apology __________ the circumstances. Here are a few tips:
Sincerity trumps(胜过) timing
A little cool-off time could help. Sometimes an immediate apology is _________ .But if the other party is angry at your wrongdoing. If may be more effective to wait because their anger may prevent them from being __________ to an apology. __________ , waiting can benefit you, too, The best time to apologize is when one feels ready to sincerely apologize..
Explain: don't excuse
Admitting being wrong is __________ and can make people worried that they’re bad people. They often water down their apology with excuses which __________ the responsibility part of the apology to save face.
Excuses may include examples like"I’m very sorry, but in my defense, you started it. " This is a non-apology. It uses the form of an apology but follows it up by __________ responsibility to the offended person, implying he or she is too sensitive.
Let your body do the talking
Experts agree that __________ apologies beat phoned-in, e-mailed and handwritten ones. Facial expressions, posture and the tone of voice are all important __________ that convey sincerity when you express repentance. Anyone can type" feel ashamed, " but if you say it __________ , it's obvious whether or not you mean it.
A phone call is second best. You’ll convey emotions with your voice and get instant feedback. E-mailed apologies aren’t ideal. They lack emotional signals. A victim can exploit written apologies and do harm to the apologizer. Being a victim does not __________ transform one into a good person.
1.A.For instance B.In other word C.In fact D.Of course
2.A.offended B.defended C.needed D.accused
3.A.explain B.reset C.solve D.fix
4.A.reliable B.credible C.valuable D.insincere
5.A.judging by B.speaking of C.considering D.depending on
6.A.called for B.taken up C.looked into D.sought for
7.A.reluctant B.willing C.additive D.receptive
8.A.Hence B.Moreover C.However D.Thereby
9.A.tolerable B.worthless C.painful D.delightful
10.A.build up B.play down C.add to D.back up
11.A.shifting B.offering C.giving D.conveying
12.A.sincere B.instant C.false D.face-face
13.A.features B.weapons C.channels D.expressions
14.A.vividly B.slowly C.live D.clearly
15.A.consequently B.significantly C.necessarily D.dramatically
高一英语完形填空困难题查看答案及解析
Anjali Mishra is a rising junior at Sunset High School in Portland, Oregon. At 17, she is president and founder of her school’s UNICEF (United Nations Children’s Fund) USA club, and a member of UNICEF’s national council (委员会). She also volunteers her time in different communities.
How did Anjali develop such a passion (热情) for helping others? When she was a freshman, she had an experience that greatly changed her attitude. She was invited to a cousin’s wedding in India.
“My mom kind of forced me to go,” Anjali says. “When I saw children on the street, I realized how lucky I was as a child. I was able to get whatever I wanted, and my every need was satisfied.”
Anjali asked herself: “What can I do to help? UNICEF stood out to me because it’s always on the front lines helping children in need.”
After starting a UNICEF club at her school, Anjali noticed that the community responded actively. She took things a step further by applying to UNICEF’s national council.
“UNICEF really liked my work,” she says. “Out of 3,000 applicants, they chose 6 high school students to be on the national council, and I was one of them.”
As a member of the council, Anjali helps organize high school UNICEF clubs around the country and provide resources so that the clubs can manage themselves.
The teen also founded an organization called “Activists United.” Members educate people on the dangers of guns. Anjali encourages other kids to start local clubs and organizations, too. “It takes a lot of effort, but you can get it done if you’re passionate,” she says.
1.Why did Anjali go to India?
A. To be a volunteer. B. To see her mother.
C. To spend a holiday. D. To attend a wedding.
2.What has led Anjali to set up the UNICEF USA club?
A. Her mother’s suggestion. B. Her volunteer experience.
C. The situation faced by poor children. D. The encouragement from her cousin.
3.What does the underlined word “them” in Paragraph 6 refer to?
A. 3,000 applicants. B. UNICEF officers.
C. 6 high school students. D. Founders of UNICEF’s national council.
4.What does the organization “Activists United” do?
A. It educates people on gun safety. B. It raises money for children in need.
C. It helps kids start local organizations. D. It provides support for UNICEF clubs.
高一英语阅读理解简单题查看答案及解析
This may be music to your ears.
Researchers P Jason Rentfrow and Samuel Gosling gave 3,500 people a personality quiz.Then they asked them to name their favourite kind of music.“We found that the musical styles people like are closely linked to their personalities,”Gosling says.
RAP/HIP-HOP
Known for their quick speech,some rappers can say more than 700 syllables (音节)a minute!
If you like rap/hip-hop,you are energetic(精力充沛的)and have a way with words.You_put_a_fresh_spin_on_things,whether it's new moves on the dance floor or your hip style.
CLASSICAL
In the 18th century,classical musicians were like rock stars.Beethoven and Mozart,for example,played to packed concert halls.
If you like classical,you are open to new ideas and like debating with friends.Creative and imaginative,you can easily spend many hours scrapbooking,writing or painting.
COUNTRY
Country music came from the folk songs of English,Scottish,and Irish settlers of the southeastern United States.
If you like country,you express your opinions well,which makes you the ideal class president or team captain.Traditional and loyal,you enjoy spending time with your family.
POP
Pop music is designed to appeal to(吸引)almost everyone,and it does.Each year,the industry brings in about 30 billion dollars!
If you like pop,you are attractive to your friends.You can make big things happen,like planning for a huge party or inspiring your team to victory.
ROCK/ALTERNATIVE
In the 1950s,rock music created a brand-new culture.Teenagers,for the first time,had an identity(身份)separate from adults and children.
If you like rock/alternative,you are a risk-taker who never accepts no for an answer.You rise to any challenge,like doing very well in a big exam or in the school play.
If these personality profiles don't match you,that's OK.These are just for fun.
1.What does the underlined part “You put a fresh spin on things” mean in the passage?
A. You can express your idea in a clever way that makes it seem better than it really is.
B. You have the ability to attract other's attention.
C. You are always willing to communicate with others.
D. You are willing to express your thought to others all the time.
2.If you like pop music,________.
A. you are traditional and prefer to stay with your family
B. you are easy to accept new ideas
C. you are welcome and your friends all like to be with you
D. you have a quick speech and can say 30 words in a minute
3.We can know from this passage that ________.
A. in the 18th century,classical musicians were like pop stars
B. country music came from the folk songs of the Native Americans
C. pop music is liked by the largest number of people in the world
D. everyone can find his personality in this passage
4.What's the best title for the passage?
A. When music came into being.
B. What your favourite music says about you.
C. Some basic information about music.
D. How to like music.
高一英语阅读理解中等难度题查看答案及解析
It is pretty much a one-way street. While it may be common for university researchers to try their luck in the commercial world, there is very little traffic in the opposite direction. Pay has always been the biggest deterrent, as people with families often feel they cannot afford the drop in salary when moving to a university job. For some industrial scientists, however, the attractions of academia (学术界) outweigh any financial considerations.
Helen Lee took a 70% cut in salary when she moved from a senior post in Abbott Laboratories to a medical department at the University of Cambridge. Her main reason for returning to academia mid-career was to take advantage of the greater freedom to choose research questions. Some areas of inquiry have few prospects(前景) of a commercial return, and Lee’s is one of them.
The impact of a salary cut is probably less serious for a scientist in the early stages of a career. Guy Grant, now a research associate at the Unilever Centre for Molecular Informatics at the University of Cambridge, spent two years working for a pharmaceutical (制药的) company before returning to university as a post-doctoral researcher. He took a 30% salary cut but felt it worthwhile for the greater intellectual(智力的) opportunities.
Higher up the ladder, where a pay cut is usually more significant, the demand for scientists with a wealth of experience in industry is forcing universities to make the transition (转换) to academia more attractive, according to Lee. Industrial scientists tend to receive training that academics do not, such as how to build a multidisciplinary(包括各种学科的) team, manage budgets and negotiate(谈判) contracts. They are also well placed to bring something extra to the teaching side of an academic role that will help students get a job when they graduate, says Lee, perhaps experience in manufacturing practice or product development. “Only a small number of undergraduates will continue in an academic career. So someone leaving university who already has the skills needed to work in an industrial lab has far more potential in the job market than someone who has spent all their time on a narrow research project.”
1.By “a one-way street” in the first paragraph, the author means ________.
A.university researchers know little about the commercial world
B.there is little exchange between industry and academia
C.few industrial scientists would quit to work in a university
D.few university professors are willing to do industrial research
2.The word “deterrent” most probably refers to something that _____.
A.keeps someone from taking action
B.helps to move the traffic
C.attracts people’s attention
D.brings someone a financial burden
3.What was Helen Lee’s major consideration when she changed her job in the middle of her career?
A.Flexible work hours.
B.Her research interests.
C.Her preference for the lifestyle on campus.
D.Prospects of academic accomplishments.
4.Guy Grant chose to work as a researcher at Cambridge in order to ________.
A.do financially more rewarding work
B.raise his status in the academic world
C.enrich his experience in medical research
D.have better intellectual opportunities
5.What contribution can industrial scientists make when they come to teach in a university?
A.Increase its graduates’ competitiveness in the job market
B.Develop its students’ potential in research.
C.Help it to obtain financial support from industry.
D.Adapt its research to practical applications.
高一英语阅读理解中等难度题查看答案及解析
A team of researchers at the University of Illinois at Chicago found that too many kids are eating too much pizza and too many calories are doing harm to children’s health.
“There are a lot of takeaways from the study. But the biggest thing is that parents are serving their kids too much pizza,” said Dr.William Dietz, one of the study’s authors and the director of the Sumner M. Redstone Global Center for Prevention and Wellness at the Milken Institute of Public Health at the George Washington University.
The researchers used data from the National Health and Nutrition Examination Survey, which tracked the diets of more than 11,000 children and teenagers. Researchers figured how many children eat pizza in the United States, how often they eat it, and how much they eat when they do.
Pizza, pretty alarmingly, is the second leading source of calories in the diets of America’s children, next only to grain desserts, such as cookies and other sweets. On any given day, roughly 20 percent of all children aged 2 to 11 and adolescents aged 12 to 19 eat pizza. And when they do, they eat a lot of it. When children eat pizza, they eat roughly 400 calories, according to the study. For teenagers, it’s upwards of 600 calories.
All that is pretty problematic, according to Dietz largely because kids don’t tend to balance the pizza slices with salads, vegetables and other more nutritional(有营养的) foodstuffs. Days on which children and teenagers eat pizza are not only associated with considerably higher intakes of fat, but also, quite simply, with more food: on average, children consume 84 extra calories on the days they eat pizza, while adolescents consume an extra 230 calories.
“When you eat extra calories and don’t compensate(抵偿) for them at another point of the day or week, it can lead to weight gain and even obesity.”Dietz said.
There is a Silver lining. Pizza consumption is still too high by nutrition standards, but it’s lower than it used to be. Consumption(消费) fell by roughly 25 percent between 2007 and 2016, according to the study. Much of that has come at dinner where it's fallen by 40 percent for children and about 33 percent for teenagers. It’s unclear whether the decline has been in connection with a growing concern over obesity, especially among the country’s youth.
But the drop in pizza consumption, while significant hasn’t been big enough “It’s a positive trend,” Dietz said. “But we’re not quite them yet.”
It’s easy to see the appeal of pizza. It’s cheap. Parents can buy a lot of pizza for not a lot of money. Besides, they can buy pizza from a chain shop, a mom-and-pop store or a grocery freezer. And it’s universally loved. The estimated 3 billion pizza eaten each year in the United States is a proof of the food’s unmatched popularity. Given how much the country loves pizza, what’s to be done? Dietz suggests pizza with smaller serving sizes and healthier toppings(配料). “We’re not suggesting that kids avoid pizza altogether.” said Dietz. “But when parents serve it, it’s important that they understand it’s extremely caloric. They should serve smaller pizza, or at least smaller slices.”
1.According to the study, the problem with kids is that .
A. they are overweight B. they have too many takeaways
C. they are fed too much pizza D. they have very bad health
2.How did the researchers get the result?
A. Through interviewing. B. By analyzing data.
C. By tracking kids’ diets. D. Through experimenting.
3.We know from the passage that when kids eat pizza, .
A. they usually don’t eat other food B. they eat less of other food
C. they are not likely to balance their diet D. they usually eat with vegetables
4.What does the underlined part a silver lining in Paragraph 7 probably mean?
A. Something hopeful B. Something valuable.
C. Something miserable. D. Something successful.
5.What’s the key message of the last paragraph?
A. Pizza consumption fell significantly in America.
B. Pizza has many advantages over other food.
C. Eating too much pizza can lead to failing health and obesity.
D. The pizza problem may be improved through its size and topping.
高一英语阅读理解困难题查看答案及解析
Researchers at the University of Bedforshire have developed a new technique for powering electronic device(装置). The system, developed by Professor Ben Allen at the Centre for Wireless Research, uses radio(无线电) waves as power.
Believed to be a world first, the team claims it could eventually eliminate (or get rid of )the need for conventional batteries. The university has now filed a patent application to secure the only rights to the technique.
Professor Allen and his team have created a system to use medium wave frequencies to replace batteries in small everyday devices like clocks and remote controls.
The new technique uses the “waste” energy of radio waves and has been developed as part of the university’s research into “power harvesting”. Professor Allen said that as radio waves have energy―like light waves, sound waves or wind waves―then, in theory, these waves could be used to create power.
“The emerging(新兴的)area of power harvesting technology promises to reduce our reliance on conventional batteries,” he said. “It’s really exciting way of taking power from sources other than what we would normally think of.”
The team is now waiting for the results of the patent application to secure recognition of the technique. Professor Allen said that the team’s achievements had all been done in their “spare time”. “Our next stage is to try and raise some real funds so that we can take this work forward and make a working prototype(模型)and maybe partner up with the right people and take this to a full product in due course,” he said.
“Power harvesting has a really important part in our future, because, just in this country, we dispose of somewhere between 20,000 and 30,000 tonnes of batteries in landfill(垃圾填理)sites every single year-that is toxic chemicals going into the ground.”
He added that development of the product could also be “commercially beneficial”. “The market for this is several billion pounds. We’ve seen market predictions for 2020 which have these kinds of figures, so there’s a lot of commercial potential in this area,” he said.
Pro-Vice Chancellor at the University of Bedfordshire, Professor Carsten Maple, said, “This type of work is a reflection of the university’s growing reputation and experience in conducting innovative(创新的)research.”
1.From the text we know the new technique for powering electronic devices_____.
A.can be applied to all electronic devices. |
B.uses radio waves to create power. |
C.has replaced conventional batteries. |
D.produces many toxic chemicals. |
2.According to Professor Allen, power harvesting technology______.
A.makes every use of radio waves. |
B.takes power from usual sources. |
C.reduces our dependency on conventional batteries. |
D.aims at huge commercial benefits. |
3.What can we learn about Professor Allen and his team from the text?
A.They have made use of radio waves in their daily life. |
B.They have raised a big fund to support their research. |
C.They have gained a patent for their new technology. |
D.They mainly did their research in their spare time. |
4.What is Professor Carsten Maple’s attitude toward the new technique?
A.Critical. | B.Favorable. | C.Conservative. | D.Negative. |
5.What is the text mainly about?
A.A new technique to create power. |
B.A crisis concerning conventional batteries. |
C.Some special sources of power. |
D.The development of power harvesting. |
高一英语阅读理解极难题查看答案及解析
Researchers believe that the insect(昆虫) is better at managing congestion (拥挤) than humans. Ants are the most many type of animal on earth with brains that contain about 250,000 cells ---- the largest among insects.
Now an intelligence expert Dr. Dirk Helbing says understanding more about ants could help solve one of the headaches of modern life -- road congestion.
His team set up an "ant motorway" with two routes of different widths from the nest to some sugar syrup (糖浆). Soon the narrower(更窄的) route soon became crowded(拥挤的). But when an ant returning along the crowded route to the nest met with another ant just starting out, the returning ant pushed the newcomer onto the other path. However, if the returning ant had enjoyed a trouble-free journey, it did not send the newcomer in a different direction.
The result was that just before one route became clogged , the ants had turned to another route and traffic jams never formed.
The researchers also created a computer model of more complex ant networks with routes of different lengths. The team found that even though ants being sent in another direction sometimes took a longer route, they still got to the food quickly and efficiently.
Dr. Helbing, of the Dresden University of Technology in Germany, said that while you cannot allow cars to meet with traffic coming in the opposite(相反的)direction as a form of traffic control, you could do the next best thing and allow them to communicate.
His plan is to force cars traveling in one direction to tell oncoming traffic what the conditions they are about to meet with-- so they can avoid that situation if necessary.
1.The first paragraph suggests that _______.
A.ants have a special way to manage congestion |
B.ants are clever and good at dealing with the traffic jams because of developed brain |
C.insects are similar to animals in dealing with the traffic jams because of developed brain |
D.insects have more advantages than humans |
2. The underlined word "clogged" can be replaced by _______ in the following four words.
A.cleaned | B.narrowed | C.crowded | D.shortened |
3.If an ant returns along crowded route to the nest, how does the ant solve the traffic problem?
A.The ant will change the direction of its own. |
B.The ant stopped the newcomer from moving ahead and forced the newcomer to wait there patiently. |
C.The ant can't direct the newcomer. |
D.The ant will push the newcomer to the other route, so traffic jams won't form. |
4. What's the advice that Dr. Helbing gives us?
A.The cars cannot be allowed to communicate with traffic coming in the opposite direction. |
B.The cars can communicate with traffic in the same direction. |
C.The cars that travel in one direction can tell oncoming traffic about the traffic conditions. |
D.We should build more routes of different lengths and widths. |
高一英语阅读理解简单题查看答案及解析
Researchers at the University of Chicago have trained an artificial intelligence (AI) system to write fake reviews on Yelp, a website showing customers’ reviews on shopping or something else, and it’s pretty hard to tell them apart from a human review.
Their study, which will be pressed at the ACM Conference on Computer and Communication Security in October, aimed to stress how easily these systems can write reviews like humans and how damaging they can become if they're not mentioned properly.
Since many small businesses rely on online reviews to help grow and support their reputation, a future where someone—like a competitor or angry customer—could crazily fill their page with bad reviews written by a machine is pretty worrying.
And, according to the research team, the threat goes far beyond a bunch of fake reviews on Yelp. “In general, the threat is bigger,” Ben Y. Zhao, one of the authors of the study, said. “I think the threat towards society is large and it really misleads users and shakes our belief in what is real and what is not. I think that's going to be even more unimaginable.”
To test how believable these reviews came across, the researchers invited 40 volunteers and had AI generate(生成) five fake reviews for 40 actual restaurants. The volunteers were asked how useful they thought the reviews were and whether or not they thought they were fake. The AI reviews ranked as “effectively indistinguishable” from real reviews, according to the study. Further the fake reviews were given a 3.15 “usefulness” rating, compared to a 3.28 rating for human reviews.
1.Why do researchers use AI system to write fake reviews on Yelp?
A. To press their study at the ACM Conference.
B. To replace humans reviews with AI reviews.
C. To make sure that they are not harmful to our life.
D. To make a research on AI systems review writing.
2.According to the text, what do we know about the AI reviews?
A. They can be found everywhere.
B. They are hardly helpful to our life.
C. They can be vital to small businesses.
D. They bring us a lot of convenience.
3.What does the last paragraph tell us?
A. AI reviews were effectively distinguishable.
B. AI system was really a help in review writing.
C. Restaurants should care for customers’ reviews.
D. AI reviews were almost as believable as humans'.
4.What’s the author’s purpose of writing the passage?
A. To emphasize the importance of AI studying.
B. To predict what the world will be like tomorrow.
C. To warn people of the threat from AI’s fake remarks.
D. To tell the differences between AI reviews and humans'.
高一英语阅读理解中等难度题查看答案及解析
Researchers at the University of Chicago have trained an artificial intelligence( 人工智能) system, to write fake( 伪 造 的 ) reviews( 评 论 ) on Yelp, a website showing customers reviews on shopping or something else, and it's pretty hard to tell them apart from a human review.
Their study, which will be presented at the ACM Conference on Computer and Communications Security in October, aimed to throw attention onto how easily these systems can write reviews like humans and how damaging they can become if they’re not monitored properly.
Since many small businesses depend on online reviews to help grow and keep their reputation, a future where someone—like a rival or angry customer—could crazily fill their page with negative reviews written by a machine is pretty worrying.
And, according to the research team, the threat goes far beyond fake reviews on Yelp. “In general the threat is bigger,” Ben Y. Zhao, one of the authors of the study, said. “I think the threat towards society is large and it really misleads users and shakes our belief in what is real and what is not. I think that' s going to be even unimaginable.”
To test how believable these reviews are, the researchers invited 40 volunteers and had AI make five fake reviews for 40 actual restaurants. The volunteers were asked how useful they thought the review was and whether or not they thought it was fake. The AI reviews was regarded as “effectively unrecognizable ” from real reviews,according to the study. Further, the fake reviews were given a 3.15 "usefulness" rating, compared to a 3.28 rating for human reviews.
1.What can the new artificial intelligence system do according to the passage?
A. It can help train new reviewers.
B. It can tell the real reviews from the fake ones.
C. It can write human-like reviews.
D. It can easily damage the businesses.
2.What does the underlined word "rival'' mean in the passage?
A. A person who respects you deeply.
B. A person who is against you.
C. A person who loves to give fake reviews.
D. A person who can control you from distance.
3.What can we infer from Ben Y. Zhao's remarks?
A. Artificial intelligence can put the society in danger.
B. The artificial intelligence is only used by the researchers
C. Ben Y. Zhao is optimistic about the further development of artificial intelligence.
D. The artificial intelligence will help people shake.
4.What is the best title for the passage?
A. Tips on Giving Reviews. B. How to Tell the Fake Reviews.
C. Development of AI in Review on Yelp. D. AI is coming to Steal Your Reviews.
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