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An international team of astronomers in Washington D.C.announced Wednesday it had successfully captured the first-ever image of a black hole and published it.
   The picture shows the black hole having a dark center，encircled by a bright orange and yellow ring spreading outward.Black holes are areas in space where gravity is so strong that nothing-not even light-can escape them.They are believed to be formed by collapsed（隕落的）stars.The presence of black holes affects the surrounding environment in extreme ways. They are not easy to capture on camera because they are surrounded by thick dust material and extremely hot gases.
   But scientists say they were able to produce the new image from data collected from a series of radio telescopes around the world.Harvard University scientist Sheperd Doeleman，who leads the Event Horizon Telescope （EHT） project，announced the image discovery. "We are delighted to be able to report today that we have seen what we thought was unseeable.We have also taken a picture of it." He explained that the image resulted from a combined effort involving all eight of the EHT radio telescopes working at the same time.It has a mass 6.5 billion times greater than Earth's sun.
   Researchers said that the EHT project created an Earth-sized "virtual telescope" to capture the highest possible image quality.The size and shape of the shadow matches the precise predictions of Einstein's general theory of relativity.
   Sheperd Doeleman said the new image provides the first visual evidence to confirm that theory.It also helps to unlock the mystery of black holes. "We didn't see something that was unexpected.We saw something that really had a ring to it."
   Even though the data was first gathered in 2017，it required a huge effort to produce the image published on Wednesday.

（1）Which is TRUE about the black hole？
D
D

A．It has a dark surface.
B．It consists of thick dust.
C．It is visible o the eye.
D．It swallows everything approaching it.
（2）What does the underlined word "They" in Paragraph 2 refer to？
A
A

A．Black holes.
B．Collapsed stars.
C．Extreme ways.
D．Hot gases.
（3）How did scientists get the image？
A
A

A．By collecting available data.
B．Through the cooperation of radio telescopes.
C．With the help of a huge camera.
D．From Einstein's general theory of relativity.
（4）What does the image discovery contribute to？
A
A

A．Uncovering the secret of black holes.
B．Confirming people's visual evidence theory.
C．Testing the function of virtual telescopes.
D．Providing first-hand evidence of astronomers.

【考點(diǎn)】社會(huì)；說(shuō)明文．

【答案】D；A；A；A

【解答】

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發(fā)布：2024/5/27 14:0:0組卷：1引用：1難度：0.5

相似題

1．How many different emotions do you think you can communicate to people with your face？Do you have the same facial expressions as the people from different cultures？Read this passage to find out what scientists have just discovered about this topic.
   New research suggests that there are only four basic facial expressions of emotion.However，how these expressions are interpreted（解釋?zhuān)?might depend on where you are from.Research by scientists from the Institute of Neuroscience and Psychology at the University of Glasgow has challenged the traditional view of how the face expresses emotions.It was widely believed that six basic emotions （happiness，sadness，fear，anger，surprise and disgust） were expressed and recognized across different cultures.However，the University of Glasgow's work now suggests that the human face only has four basic expressions of emotion.This is because some pairs of emotions are impossible to distinguish（辨別）.Fear and surprise，for example，both share wide open eyes.The facial expressions for anger and disgust also look the same.
   So if our faces are only able to express four basic emotions，how do we communicate a much more complex（復(fù)雜的） kind of feeling？The study found that the way expressions are interpreted is different in different cultures.However，while looking at how people from the East and West look at different parts of the face during facial expression recognition，scientists found that although there are some common features across cultures，the six basic facial expressions of emotion are not recognized universally.
   What interests people about the cross-cultural aspect of the research？This work leads to understanding which emotions we share and appreciating our differences.

（1）What did the University of Glasgow find？

A．Six basic emotions greatly influence our character.
B．Six basic emotions can be recognized.
C．It is easy to tell from the basic facial expressions.
D．Some of the six facial expressions are similar.
（2）Which group may be the four basic facial expressions of emotion？

A．Sadness，fear，anger and surprise.
B．Anger，sadness，fear and happiness.
C．Happiness，surprise，sadness and fear.
D．Disgust，happiness，anger and sadness.
（3）What can we learn according to Paragraph 3？

A．Basic facial expressions are not universal.
B．Facial expressions can't show complex feelings.
C．Western people have more kinds of facial expressions.
D．The way to express emotions changes with time.
（4）Which is the proper title for the passage？

A．What Does Your Face Say？
B．How Do We Communicate？
C．What Are the Six Basic Emotions？
D．Do We Have the Same Expressions？
發(fā)布：2024/11/4 14:30:2組卷：50引用：3難度：0.6
解析
2．Working or learning in a foreign country can be a difficult experience.The hardest part of working abroad isn't finding a place to stay or learning the language.It's learning to overcome the culture shock.
   These things are part of everyday life，and include many signs，gestures，facial expressions，and customs.When we enter a new culture，these cues （提示） are usually not present or so different that they're no longer understandable to us.
   "When a person enters a foreign culture，" wrote Oberg，"all or most of these familiar cues are eliminated.He or she is like a fish out of water.No matter how broad-minded he or she may be，lots of props（支柱） have been knocked out from the environment."
   This is what happened to Lara，a young IT consultant （顧問(wèn)） from America who moved last year to their company in southern Europe.Three weeks after she arrived in Europe，Lara sent a desperate e-mail begging to return home. "The people are so unfriendly，" Lara wrote."They eat at strange hours and I'm starting to get allergic （過(guò)敏的） to the local food.I can't get anything done because their way of doing business is so disorganized and so inefficient and I have a terrible skin itch because of the water.I want to come home!"
   What Lara and other IT consultants meet on their first assignment abroad is a culture shock.While you can't prevent the culture shock from happening，you can take some measures to cut down its effects.

（1）What is the most difficult part for a foreign student？

A．Entering a famous school.
B．Finding a right place to live.
C．Adapting to the local culture.
D．Learning the foreign language.
（2）Which of the following can replace the underlined word "eliminated" in Paragraph 3？

A．Solved.
B．Measured.
C．Observed.
D．Removed.
（3）What happened to Lara when she arrived in Europe？

A．Her life got into a mess.
B．She worked more efficient than at home.
C．She couldn't get on well with her colleagues.
D．She was out of condition because of the weather.
（4）Why does the author describe Lara's experience？

A．To tell us how she manages to work well.
B．To explain to us what the culture shock is.
C．To show us how to adapt to the culture shock.
D．To show us where we'll meet with the culture shock.
發(fā)布：2024/11/4 11:30:2組卷：24引用：2難度：0.5
解析
3．The meaning of silence varies among cultural groups．Silences may be thoughtful，or they may be empty when a person has nothing to say．A silence in a conversation may also show stubbornness，or worry．Silence may be viewed by some cultural groups as extremely uncomfortable；therefore attempts may be made to fill every gap（間隙） with conversation．Persons in other cultural groups value silence and view it as necessary for understanding a person's needs．
   Many Native Americans value silence and feel it is a basic part of communicating among people，just as some traditional Chinese and Thai persons do．Therefore，when a person from one of these cultures is speaking and suddenly stops，what maybe implied（暗示） is that the person wants the listener to consider what has been said before continuing．In these cultures，silence is a call for reflection．
   Other cultures may use silence in other ways，particularly when dealing with conflicts among people or in relationships of people with different amounts of power．For example，Russian，F(xiàn)rench，and Spanish persons may use silence to show agreement between parties about the topic under discussion．However，Mexicans may use silence when instructions are given by a person in authority rather than be rude to that person by arguing with him or her．In still another use，persons in Asian cultures may view silence as a sign of respect，particularly to an elder or a person in authority．
   Nurses and other care-givers need to be aware of the possible meanings of silence when they come across the personal anxiety their patients may be experiencing．Nurses should recognize their own personal and cultural construction of silence so that a patient's silence is not interrupted too early or allowed to go on unnecessarily．A nurse who understands the healing（治愈） value of silence can use this understanding to assist in the care of patients from their own and from other cultures．

（1）What does the author say about silence in conversations？

A．It implies anger．
B．It promotes friendship．
C．It is culture-specific．
D．It is content-based．
（2）Which of the following people might regard silence as a call for careful thought？

A．The Chinese．
B．The French．
C．The Mexicans．
D．The Russians．
（3）What does the author advise nurses to do about silence？

A．Let it continue as the patient pleases．
B．Break it while treating patients．
C．Evaluate its harm to patients．
D．Make use of its healing effects．
（4）What may be the best title for the text？

A．Sound and Silence
B．What It Means to Be Silent
C．Silence to Native Americans
D．Speech Is Silver；Silence Is Gold
發(fā)布：2024/11/2 15:0:1組卷：25引用：3難度：0.5
解析

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