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2421．Mike lived on Lincoln Road，
many important people lived.發(fā)布：2024/5/23 20:38:36組卷：1引用：4難度：0.72422．Most dog owners are convinced that their four-legged friends know exactly what they mean when they use certain words like "sit"，"stay" or "treat".However，researchers have always wondered whether dogs really understand human speech or if they rely on other information to get the meaning.For example，does the word "fetch" form a picture of a stick or ball in the dog's mind，or does the dog bring back the object based on the owner's voice or gesture？A new study by scientists at Atlanta's Emory University seems to indicate that "man's best friend" does indeed know what the owner is saying.
The researchers began by asking the owners of twelve dogs of various kinds to train their pets to identify two toys of different materials，such as a toy animal and a ball.Once the dogs had mastered the task，they took turns inside a special scanner.The owners then tested their dog's language skill by first calling out the names of the toys they had been trained to recognize and then saying meaningless words such as "bobbu" and "bodmick" while holding up random objects the dogs hadn't seen before.
The scans suggested that the parts of the dogs' brains responsible for processing sounds showed different brain patterns when they heard words they were familiar with，compared with the ones they had never heard before.While that was not enough to prove that the dogs were picturing their toys when they heard the word，it did indicate some sort of recognition.The researchers believe this is an important step in understanding how dogs process language.
Something even more interesting was that the dog's brains showed a higher level of neural（神經(jīng)的）activity at the sound of unknown words.This is the exact opposite of what happens in human brains，which get more active at the sound of familiar words.The researchers say the dogs may become cheerful at the sound of new words to try to understand them in the hope of delighting their masters."Dogs want to please their owners，and perhaps also want to receive praise or food，" says Emory neuroscientist Gregory Berns，senior author of the study.
However，though your pet may understand human speech，the scientists recommend using visual signals and smell for training."When people want to teach their dog a trick，they often use spoken commands because that's what we humans prefer，" Prichard says."From the dog's view，however，a visual command might be more effective，helping the dog learn the trick faster."
（1）What's the purpose of the new study？
A．To convince dog owners to understand their dogs.
B．To advise dog owners to treat their dogs kindly.
C．To prove dogs follow owners' order by listening.
D．To test out how dogs get information from owners.
（2）What does the author intend to do in Paragraph 2？
A．Inform the result of the research.
B．State the process of the research.
C．Stress the importance of the research.
D．Introduce the subjects of the research.
（3）How do human brains and dog brains react to words？
A．Human brains become active in unfamiliar words.
B．Dog brains become delighted at unfamiliar words.
C．Human brains are not sensitive to familiar words.
D．Dog brains show no response to familiar words.
（4）What do scientists advise the owners to do in dog training？
A．Give dogs oral commands.
B．Teach dogs new tricks.
C．Involve sight and smell.
D．Encourage faster learning.發(fā)布：2024/5/23 20:38:36組卷：16引用：1難度：0.52423．If you have privacy，you are in a place or situation that allows you to do things __________.（ ）
發(fā)布：2024/5/23 20:38:36組卷：13引用：1難度：0.62424．When something rolls，it moves along a surface，__________many times.
發(fā)布：2024/5/23 20:38:36組卷：4引用：0難度：0.92425．Young Einstein was fascinated by physical and mechanical
（phenomenon）.發(fā)布：2024/5/23 20:38:36組卷：0引用：1難度：0.72426．Tencent Cloud，the cloud computing branch of Internet giant Tencent，is stepping up its artificial intelligence （AI） focus with an eye on the profit opportunities for the sector in China.
The cloud computing service provider on Wednesday launched a series of new AI products that seek to lower the skill barriers for enterprise customers.
"The blossoming AI，big data and other digital technologies over recent years strongly point toward an inevitable trend of intelligent upgrade of industries，" said Wang Long，vice-president of Tencent Cloud. "Companies are eager for more advanced AI applications to generate new power for industrial development." Wang added that companies need to offer comprehensive AI solutions that can truly generate value and help clients embrace digital transformation.
The cloud service provider also announced on Wednesday that it has upgraded all its AI and big data products，as part of the larger efforts to strengthen its leading position in the market.
With the booming new technologies and supportive government policies，China is fast becoming a fertile（肥沃的） market for the development of AI technologies and the applications，powered by leading tech giants such as Alibaba，Tencent and Baidu.
By the end of 2018，China had 3，341 AI companies and was ranking second behind the United States，said an AI development report released last year by the Ministry of Science and Technology.It also showed that the US，China and the United Kingdom are at the forefront of AI.From 2013 to 2018，global scientists published more than 300，000 papers in AI research，with China leading in the number of published papers at 74，408，followed by the US at 51，766.
According to a national plan released in 2017，China is set to become the world leader in AI by 2030.By 2021，China's AI industry is expected to be worth 150 billion yuan（US ＄21 billion）.
"Both AI adoption and spending are picking up fast，" Andrea Minonne，a senior research analyst with International Data Corp，said in a recent report. "AI is the game changer in a highly competitive environment，especially across customer-facing industries such as retail and finance，where AI has the power to push customer experiences to the next level with virtual assistants，product recommendations，or visual searches."
（1）According to Wang Long，is the way to help customers embrace digital transformation.
A．upgrading AI and big data applications
B．providing full-scale AI solutions
C．designing more brand-new AI products
D．outselling all opponent companies
（2）What can we learn from the passage？
A．Tencent Cloud launched a series of new Al products to make more profits.
B．The value of China's AI industry is expected to be higher than that of the US by 2021.
C．Tencent Cloud has improved its Al products to enhance its position in the market.
D．China was only second to the US in the number of AI research papers published from 2013 to 2018.
（3）How is the sixth paragraph mainly developed？
A．By giving explanations.
B．By following natural time order.
C．By analyzing causes.
D．By making comparisons.
（4）What can we conclude from Minonne's words？
A．AI plays a vital role only in retail and finance.
B．AI helps a lot in improving customer experiences.
C．The use of AI will gradually decrease in the future.
D．AI provides customers with virtual assistants，not practical suggestions.發(fā)布：2024/5/23 20:38:36組卷：35引用：1難度：0.72427．He
to finish his journey by mid-July.發(fā)布：2024/5/23 20:38:36組卷：1引用：1難度：0.72428．同學(xué)們正在制作海報(bào)，大力宣傳保護(hù)野生動(dòng)物。
發(fā)布：2024/5/23 20:38:36組卷：0引用：0難度：0.82429．I have read the book twice，which was written by a famous British writer．
→.發(fā)布：2024/5/23 20:38:36組卷：0引用：1難度：0.72430．Now and then they heard the
（咆哮）of thunder outside.發(fā)布：2024/5/23 20:38:36組卷：2引用：1難度：0.7
