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1 . The Rise of Voice Technology

Voice technology has come a long way. Just a few years ago, it would have been unusable. But now, those who follow the technology know that it has got considerably better.

Writing with your voice raises several interesting questions. How difficult is it actually? Human speech involves a lot more starting and stopping with errors and the need for repairing broken sentences than you may think. Even gifted speakers make mistakes. To turn the spoken word into reasonable writing requires lots of planning. You’ll need some kinds of notes or other organisers to make it work.

Another question turning speech into writing raises is the style. How would writing make the change that people speak their writing rather than type? Chances are that it would come up with many more short sentences and more concrete language, which is good. It would probably also rely on prepared phrases a lot more often, which is not available when you are speaking quickly.

To confirm this, a column was not written, but dictated (听写). It was composed from brief notes written down for structure only, and it was edited for length, with all of the original errors kept in. Here were the results. The first was that the literal accuracy was extremely high. There weren’t many cases where the software had heard one word incorrectly and written down another. But the other result was that the readability of this column was rather bad. Obviously, the blame is not with the technology at all, which turns out to be rather good. Speaking into writing relies on a better human brain than the one we currently possess. Writing is hard. There’s a reason it can’t be done at the speed of speech, in real time.

To clarify the matter, this time paragraph breaks were added after the whole writing. Punctuations (标点) had to be spoken aloud, and after a full stop, the first word in the new sentence was capitalized automatically. Some minor punctuation marks were added to make it clearer. To improve accuracy, people “trained” the software beforehand, reading a prewritten passage aloud. Actually it turns out to be more effective. All of these ensure the satisfactory completion of turning speech into writing.

Language is the most important tool for human interaction, and voice is one beautiful part of language. With the maturity of modern technology, it has given birth to a great change in the human-computer voice interaction.

1. According to the passage, which helps to turn speech into writing in terms of style?
A.There is careful planning in advance.
B.Errors and broken sentences are avoided.
C.People type words as fast as they say them.
D.The writing contains more prepared phrases.
2. To achieve better results, the author mentions some changes for ______.
A.processing errors in a column.
B.adding minor punctuation marks.
C.increasing the number of brief notes.
D.integrating short paragraphs in writing.
3. The author suggests that ______.
A.human brains are responsible for poor dictated writing.
B.writing with voice promises to improve the quality of writing.
C.writing is an unnatural act that can hardly be learned and improved.
D.technology has a long way to go in the human-computer voice interaction.
4. What is the passage mainly about?
A.Why people fully intend to turn speech into writing.
B.What role voice technology plays in improving readability.
C.Where the human-computer voice interaction is at an advantage.
D.How voice technology enables the change from speech into writing.
2021·上海嘉定·二模
阅读理解-阅读单选(约460词) | 较难(0.4) |
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2 . Gottfried Wilhelm von Liebniz was a philosopher and mathematician in search of a model. In the late 1600s Leibniz decided there was a need for a new, purer arithmetic than our common decimal(十进制)system. He got his inspiration from the 5000-year-old book that is at the heart of Chinese philosophy:the I-Ching, or Book of Changes.

This ancient text was such an influence on Liebniz that he titled his article on the new arithmetic “Explanation of a new arithmetic and the ancient Chinese figure of Fu X”. Fu Xi was the legendary first author of the I-Ching. The arithmetic that Liebniz described was binary(二进制)code, which is used in almost every modern computer, from iPhones to China’s own Tihane-2 supercomputer.

To figure out what Liebniz learned in the I-Ching, we need to understand something that most of us have taken for granted. When we listen to an MP3, look at a digital photo or watch the latest TV drama, we are experiencing a digital representation of reality. That representation is basically just a string of binary signals that are commonly known as 1s and 0s. What Liebniz’s gained from the book was that even the most complex reality could be represented in the binary form as 1s and 0s.

In the philosophy of the I-Ching, reality is not entirely real. It is something more like a dream. This dream of reality arises from the binaries of Yin and Yang, as they play out countless combinations, practically everything in the universe. It’s not surprising then, from the l-Ching’s perspective, that anything in the dream of reality can be represented in a string of 1s and 0s, processed by a computer.

The I-Ching was far more ambitious than the current practical applications of binary code. It is claimed that the I-Ching represents nothing less than the basic situation of human life itself. As a system for predicting the future, the I-Ching might disappoint, but as a way of questioning your own unconscious mind, it can be remarkably useful.

The I-Ching’s teachings also contain warnings about our digital revolution. Binary code, powered by modern computers, has an amazing capacity to represent reality. However, the ancient authors of the I-Ching might have understood its potential-and its dangers-even better than we now do.

So when scientific thinkers ask whether computers can create “virtual realities” or “artificial intelligence”, they are missing the point. Of course, we can create ever deeper and more complex layers of the dream of reality. The real question is, can we wake up from the dream we’ re in already?

1. Which of the following is TRUE about binary codes?
A.They share the same source with the decimal system.
B.They can form numerous combinations.
C.They are documented in the Book of Changes.
D.They are first discovered by Fu Xi.
2. In paragraph 3, the underlined part refers to the fact that ______.
A.media products are digitally represented using 1s and 0s.
B.TV dramas and digital photos are not worth seeing.
C.Reality is made more complex by binary codes.
D.Licbniz’s model is hardly understandable.
3. What can be inferred from the passage?
A.Computers’ ability to represent reality is quite limited.
B.Human life is now in grave danger according to the I-Ching.
C.We have yet to understand the complete teachings of the I-Ching.
D.The I-Ching is perfectly accurate in predicting the future.
4. Which of the following is the best title?
A.The Ancient Book of Wisdom at the Heart of Every Computer
B.The Supercomputer that Employs Ancient Chinese Culture
C.The Father of Binary Code, Gottfried Wilhelm Liebniz
D.The Origin of Eastern and Western Philosophy
2021·北京西城·一模
阅读理解-阅读单选(约490词) | 较难(0.4) |
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3 . Humans’ overconsumption of resources is a leading contributor to global climate change, says University of Arizona researcher Sabrina Helm. Therefore, it’s increasingly important to understand the choices consumers make and how those decisions affect the health of a planet with limited resources. In a new study, published in the journal Young Consumers, Helm and her colleagues explore how materialistic values influence pro-environmental behaviors in millennials, who are now the nation’s most influential group of consumers.

The researchers focused on two main categories of pro-environmental behaviors: reduced consumption, which includes actions like repairing instead of replacing older items; and “green buying,” or purchasing products designed to limit environmental impacts. The researchers also looked at how engaging in pro-environmental behaviors affects consumer well-being.

More materialistic participants, the researchers found, were unlikely to engage in reduced consumption. However, materialism did not seem to have an effect on their likelihood of practicing “green buying.” That’s probably because “green buying,” unlike reduced consumption, still offers a way for materialists to fulfill their desire to get new items, Helm said.

Study participants who reported having fewer materialistic values were much more likely to engage in reduced consumption. Consuming less was, in turn, linked to higher personal well-being and lower psychological suffering. Green buying—which may have some positive environmental effects, although to a smaller degree than reduced consumption—was not found to improve consumer well-being, Helm said.

The take-home message for consumers: “The key is to reduce consumption and not just buy green stuff. Having less and buying less can actually make us more satisfied and happier,” Helm said. “If you have a lot of stuff, you have a lot on your mind,” she said. “For example, it requires maintenance and there’s a lot of burdens of ownership, and if you relieve yourself of that burden of ownership, most people report feeling a lot better and freer.”

Helm and her colleagues additionally looked at how materialism affects millennial consumers’ proactive financial behaviors, such as budgeting and saving. Examining financial behaviors alongside pro-environmental behaviors provides a picture of how young adults proactively deal with resource limitations in two contexts: environmental and financial, Helm said.

As expected, Helm and her colleagues found that those who reported having more materialistic values engaged in fewer proactive financial behaviors than their less materialistic counterparts (对应的人). The researchers also found that, consistent with previous studies, proactive financial behaviors were associated with better personal well-being, life satisfaction and financial satisfaction, as well as lower psychological suffering.

Understanding how materialistic values impact consumer behaviors, and how those behaviors in turn affect personal and environmental well-being, is important, Helm said. However, she acknowledges that for many consumers, shifting behaviors to be more financially proactive and consume less will be challenging.

1. What do we know about pro-environmental behaviors?
A.They are a cause of climate change.
B.They lead to a more satisfying life.
C.They vary in different age groups.
D.They are affected by materialism.
2. It can be learned from Helm’s study that ________.
A.ownership of green products brings a sense of happiness
B.materialists prefer practicing green buying to buying less
C.green buying helps control people’s desire to buy new items
D.buying less and green buying have similar effects on people
3. According to the study, which of the following can improve one’s well-being?
A.Replacing older items.B.Developing new resources.
C.Buying greener products.D.Being careful with expenses.
4. What is Helm probably going to explain in the next paragraph?
A.When people develop proactive financial behaviors.
B.Which financial behaviors lead to mental well-being.
C.Why it is hard to change people’s financial behaviors.
D.How materialistic values influence financial behaviors.
21-22高二上·北京海淀·期末
阅读理解-阅读单选(约450词) | 较难(0.4) |
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4 . Blood-Doping Champion

Blood doping (违规输血) to improve performance is forbidden in professional sports. Athletes can use this technique to fuel their muscles with more oxygen-carrying red blood cells—for example, by receiving a transfusion. But many animals dope naturally: sheep, fishes and horses can boost their blood’s capacity to carry oxygen by 16 to 74 percent in physically demanding situations. Now a study shows that an Antarctic fish called the bald notothen can increase its carrying capacity by more than 200 percent to pursue an active life in cold waters.

Like most fishes native to Antarctica, the bald notothen’s blood contains anti-freeze proteins that help it withstand extreme cold. But these proteins, along with red blood cells (RBCs), can make blood sticky and hard to circulate. Some Antarctic fishes adapt by removing RBCs altogether, absorbing oxygen directly from the water via skin as they passively await prey (猎物). Bald notothens, however, actively swim below surface ice to chase other active life when avoiding seals and penguins. For this behavior, “you need to supply more oxygen to the muscles,” says Michael Axelsson, a physiologist at the University of Gothenburg in Sweden and co-author of the new study.

The scientists compared RBC levels in samples collected from bald notothens relaxing in glass tanks with those in samples drawn from fish they “chased” using a plastic tube. RBC levels were at 9 percent in the resting animals but 27 percent in the exercised ones, showing a 207 percent increase in the latter’s blood oxygen carrying capacity. “No other fish we’ve seen can more than double their RBCs or drop their numbers to such a low level when resting,” Axelsson says. The fish’s spleen (脾) stores RBCs, and the researcher found that to release more into the bloodstream, the organ shrinks to weigh 41 percent less.

The enormous changes in RBC levels initially surprised Gerald Kooyman, a biologist at the Scripps Institution of Oceanography, who was not involved in the study. He notes, however, that these animals have fewer blood cells to begin with, so maintaining circulation with a tripled RBC count is less difficult. If a diving Weddell seal pushed its RBC levels from 40 to 90 percent, for instance, its blood would be dangerously hard to pump.

Yet bald notothens do face trade-offs for their ability. The scientists found blood pressure was 12 percent higher and the heart worked 30 percent harder in active individuals. Bald notothens can rest during quiet times, but when they need to use their abilities, Axelsson says, “these fish have to live with more RBCs because they need more oxygen.”

1. Compared with most fishes native to Antarctica, what is special about the bald notothen?
A.Its blood contains anti-freeze proteins.
B.It can absorb oxygen directly from water via is skin.
C.Its red blood cells can make blood sticky and hard to circulate.
D.It actively swims below surface ice when chasing other active life.
2. What does “those” in Paragraph 3 refer to?
A.RBC levels.B.Scientists.
C.Glass tanks.D.Fishes.
3. It can be inferred from the last two paragraphs that ________.
A.the RBC levels in seals can increase from 40 to 90 percent
B.bald notothens’ blood pressure are 12 percent higher than other fishes
C.when bald notothens chase active life, there are more RBCs in their bodies
D.Gerald Kooyman, a marine biologist provided some suggestions on this study
4. What is the main purpose of the passage?
A.To explain study methods on fishes.
B.To introduce some findings about a fish.
C.To present a way to improve athletes’ performance.
D.To raise people’s awareness to protect bald notothens.
2021-04-07更新 | 345次组卷 | 3卷引用:北京市高二年级-科普知识类阅读理解名校好题
智能选题,一键自动生成优质试卷~
20-21高三上·北京海淀·阶段练习
阅读理解-阅读单选(约500词) | 较难(0.4) |
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5 . There’re currently 21.5 million students in America, and many will be funding their college on borrowed money. Given that there’s now over $1.3 trillion in student loans on the books, it's pretty clear that many students are far from sensible. The average student’s debt upon graduation now approaches $40, 000, and as college becomes ever more expensive, calls to make it “free” are multiplying. Even Hillary Clinton says that when it comes to college, “Costs won’t be a barrier.”

But the only way college could be free is if the faculty and staff donated their time, the buildings required no maintenance, and campuses required no utilities. As long as it's impossible to produce something from nothing, costs are absolutely a barrier.

The actual question we debate is who should pay for people to go to college. If taxpayers are to bear the cost of forgiving student loans, shouldn’t they have a say in how their money is used?

At least taxpayers should be able to decide what students will study on the public dime. If we're going to force taxpayers to foot the bill for college degrees, students should only study those subjects that are of greatest benefit to taxpayers. After all, students making their own choices in this respect is what caused the problem in the first place. We simply don’t need more poetry, gender studies, or sociology majors. How do we know which subjects benefit society? Easy.

Average starting salaries give a clear indication of what type of training society needs its new workers to have. Certainly, there’re benefits to a college major beyond the job a student can perform. But if we’re talking about the benefits to society, the only thing that matters is what the major enables the student to produce for society. And the value of what the student can produce is reflected in the wage employers are willing to pay the student to produce it.

A low wage for elementary school teachers, however, doesn’t mean elementary education isn’t important. It simply means there’re too many elementary school teachers already.

Meanwhile, there’re few who’re willing and able to perform jobs requiring a petroleum engineering major, so the value of one more of those people is very high.

So we can have taxpayers pick up students’ tuition in exchange for dictating what those students will study. Or we can allow students both to choose their majors and pay for their education themselves. But in the end, one of two things is true:

Either a college major is worth its cost or it isn’t. If yes, taxpayer financing isn’t needed. If not, taxpayer financing isn’t desirable. Either way, taxpayers have no business paying for students’ college education.

1. What does the author think of college students funding their education through loans?
A.They only expect to get huge returns.
B.They are acting in an unwise way.
C.They benefit at taxpayers’ expense.
D.They will regret doing so someday.
2. What should students do if taxpayers are to bear their college costs?
A.Work even harder to repay society.
B.Choose their subjects more carefully.
C.Choose majors that will serve society’s practical need.
D.Allow taxpayers to participate in college administration.
3. What does the author say about the value of a student’s college education?
A.It is well reflected in their average starting salary.
B.It is to be proved by what they can do on the job.
C.It is underestimated by profit-seeking employers.
D.It is reflected in how they remove social barriers.
4. What message does the author want to convey in the passage?
A.Students should think carefully whether to go to college
B.Taxpayers should only finance the most gifted students.
C.The worth of a college education is open to debate.
D.College students should fund their own education.
2021-04-01更新 | 300次组卷 | 2卷引用:北京市高三年级-社会类阅读理解名校好题
2021·湖北·一模
阅读理解-阅读单选(约370词) | 较难(0.4) |
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6 . As the effects of climate change become more disastrous, well-known research institutions and government agencies are focusing new money and attention on an idea: artificially cooling the planet, in the hopes of buying humanity more time to cut greenhouse gas emissions.

That strategy, called solar climate intervention (干预) or solar geoengineering, involves reflecting more of the sun’s energy back into space — abruptly reducing global temperatures in a way that imitates the effects of ash clouds flowing out from the volcanic eruptions. The idea has been considered as a dangerous and fancied solution, one that would encourage people to keep burning fossil fuels while exposing the planet to unexpected and potentially threatening side effects, producing more destructive hurricanes, wildfires floods and other disasters.

But. as global warming continues, producing more destructive hurricanes, wildfires floods and other disasters, some researchers and policy experts say that concerns about geoengineering should be outweighed by the imperative to better understand it, in case the consequence of climate change become so terrible that the world can’t wait for better solutions.

One way to cool the earth is by injecting aerosols (气溶胶) into the upper layer of the atmosphere. where those particles reflect sunlight away from the earth. That process works, according to Douglas MacMartin, a researcher at Cornell University.

“We know with 100% certainty that we can cool the planet,” he said in an interview. What’s still unclear, he added, is what happens next. Temperature, MacMartin said, is an indicator for a lot of climate effects. “What does it do to the strength of hurricanes?” he asked, “What does it do to agriculture production? What does it do to the risk of forest fires?”

Another institution funded by the National Science Foundation will analyze hundreds of simulations of aerosol injection, testing the effects on weather extremes around the world. One goal of the research is to look for a sweet spot: the amount of artificial cooling that can reduce extreme weather events without causing broader changes in regional rainfall patterns or similar impacts.

1. Why do researchers and government agencies work on cooling the earth?
A.To prevent natural disasters.B.To win more time to reduce gas emissions.
C.To imitate volcanic eruptions.D.To encourage more people to bur fossil fuels.
2. What are researchers worried about in terms of global warming?
A.More volcanoes will throw out.
B.More solar energy will go into space.
C.More disasters will endanger the future of the world.
D.People will keep burning fossil fuels to keep warm.
3. What can be inferred from Douglas’ words in an interview?
A.He thinks more research remains to be done.
B.He is optimistic about the effect of cooling the earth.
C.He is concerned about the reduction in agriculture production.
D.He disapproves of the practice of solar climate intervention.
4. What does the underlined words “sweet spot” in the last paragraph mean?
A.The rainfall pattern of a region.
B.The modest drop in temperature.
C.The number of extreme weather events.
D.The injection amount of aerosol.
21-22高二上·江苏南京·期末
阅读理解-阅读单选(约430词) | 较难(0.4) |
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7 . Portraits as Art

According to a dictionary, portraiture is “a representation (描绘) of a person, especially of the face by drawing or painting a likeness.” However, this definition neglects the complexities of portraiture. Portraits are works of art that engage with ideas of identity rather than just a likeness. These concepts of identity involve social rank, gender, age, profession, character of the subject, etc. It is impossible to copy all the aspects of identity. Therefore, portraits reflect only certain qualities of subjects. Portrait art has also undergone significant shifts in artistic practice. The majority of portraits are the outcome of current artistic fashions and favored styles. Therefore, portrait art is an art category providing various engagement with social, psychological, and artistic practices and expectations.

Since portraits are different from other art categories, they are worthy of separate study. During their production, portraits require the presence of a specific person, or an image of the individual. In many instances, the production of portraiture has required sittings, which result in interaction between the subject(s) and the artist throughout the creation of the work. In certain instances, portrait artists depended on a combination of different involvement with their subjects. If the sitter can’t sit in the studio regularly, portraitists could use his or her photographs. In Europe, during the seventeenth and eighteenth century, the sitting time was sometimes decreased by focusing only on the head. Theoretically, portraitists could work from impressions or memories when creating a painting, but this rarely occurred according to documented records. Nonetheless, whether the work is based on model sittings, copying a photograph, or using memory, the process of painting a portrait is linked with the model’s attendance.

Furthermore, portrait painting can be distinguished from other artistic categories by its connection with appearance, or likeness. As such, the art of portrait painting got a reputation for imitation instead of for artistic innovation. Based on Renaissance art theory, portraiture was related to the level of a mechanical exercise as opposed to a fine art. Michelangelo’s well-known protest against portraits is only one example. During the nineteenth and twentieth centuries, the attitude to portraiture was critical. Even so, artists from around the globe persisted in painting portraits despite their theoretical objections. Picasso, for example, became widely-known for cubist still-life painting (立体派静物画) early in his career, but some of his early experiments in this new style were his portraits of art dealers.

1. What does paragraph 1 mainly tell us?
A.The changing definition of portraiture reflects shifting attitudes to it.
B.Most portraits reflect artistic fashions and favored styles when created.
C.Portraiture is a more complex art form than is defined in a dictionary.
D.Portrait art shouldn’t be seen as a distinct art category for its complexity.
2. Which of the following is a characteristic of portraiture mentioned in paragraph 2?
A.Portraiture typically takes much less time than other art forms.
B.Portraiture often requires frequent cooperation between artists.
C.Portraits show models in a more accurate way than other art forms.
D.Portraits generally involve interaction between subjects and artists.
3. According to paragraph 2, during portraits’ production, artists __________.
A.based their work on the subjects’ attendance
B.preferred models’ photographs to their presence
C.were more willing to use impressions or memories
D.reduced sitting time to concentrate on a sitter’s head
4. Picasso is chosen as an example by the author because he __________.
A.altered the way other artists felt about portrait art
B.created portraits in spite of his objection to portrait art
C.depended on portrait art to establish a higher reputation
D.had fewer theoretical objections to portraitures than others
21-22高二上·北京海淀·期末
阅读理解-阅读单选(约380词) | 较难(0.4) |
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8 . You are given many opportunities in life to choose to be a victim or creator. When you choose to be a victim, the world is a cold and difficult place.“They” did things to you which caused all of your pain and suffering.“They” are wrong and bad, and life is terrible as long as “they” are around.Or you may blame yourself for all your problems, thus internalizing(内化)your victimization.The truth is, your life is likely to stay that way as long as you feel a need to blame yourself or others.

Those who choose to be creators look at life quite differently.They know there are individuals who might like to control their lives, but they don't let this get in the way.They know they have their weaknesses, yet they don't blame themselves when they fail.Whatever happens, they have choice in the matter.They believe their dance with each sacred(神圣的)moment of life is a gift and that storms are a natural part of life which can bring the rain needed for emotional and spiritual growth.

Victims and creators live in the same physical world and deal with many of the same physical realities, yet their experience of life is worlds apart.Victims relish(沉溺)in anger, guilt, and other emotions that cause others--and even themselves---to feel like victims, too.Creators consciously choose love, inspiration, and other qualities which inspire not only themselves, but al1around them.Both victims and creators always have choice to determine the direction of their lives.

In reality, all of us play the victim or the creator at various points in our lives.One person, on losing a job or a special relationship, may feel as if it is the end of the world and sink into terrible suffering for months, years, or even a lifetime.Another with the same experience may choose to first experience the grief, then accept the loss and soon move on to be a powerful creative force in his life.

In every moment and every circumstance, you can choose to have fuller, richer life by setting a clear intention to transform the victim within, and by inviting into your life the powerful creator that you are.

1. What does the word “they” in Paragraph 1 probably refer to?
A.People and things around you.B.Opportunities and problems.
C.Creators and their choices.D.Victims and their sufferings.
2. According to Paragraph 2, creators__________.
A.seem willing to experience failures in lifeB.possess the ability to predict future life
C.handle ups and downs of life wiselyD.have potential to create something new
3. What is the author's purpose in writing this passage?
A.To define victims and creators.
B.To evaluate victims against creators.
C.To explain the relationship between victims and creators.
D.To suggest the transformation from victims to creators.
4. The examples mentioned in Paragraph 4 show that_________.
A.strong attachment to sufferings in life pulls people into victims.
B.people need family support to deal with challengers in life.
C.it takes creators quite a long time to get rid of their pains.
D.one's experiences determine his attitude toward life.
2021·上海杨浦·一模
阅读理解-阅读单选(约430词) | 较难(0.4) |
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9 . Identifying the chemical makeup of pigment (色素) used in ancient documents, paintings, and watercolors is critical to restoring and conserving the precious artworks. However, despite numerous efforts, scientists had been unable to determine the source of folium, a popular blue dye used to color manuscripts (手稿) in Europe during the middle ages — from the 5th to the 15th century. Now, a team of researchers from Portugal has finally uncovered the mysterious ingredient responsible for the gorgeous blueish-purple color that helped bring ancient illustrations and texts to life.

The research team began by poring over instructions penned by European dye makers from the 12th, 14th, and 15th centuries. They found what they were seeking in a 15th-century text entitled The Book on How to Make All the Color Paints for Illuminating Books. However, translating the instructions was no easy task. It was written in the now extinct Judaeo-Portuguese language, and though the source of the dye was traced back to a plant, no name was mentioned.

However, by piecing together suggestions from the text, the scientists were able to determine that the dye was made from the bluish-green berries of the chrozophora tinctoria plant. After an extensive search, the team found a few varieties of the plant growing along the roadside near the town of Monsaraz in south Portugal.

The detailed instructions gave the researchers critical clues — including the best time to pick the berries. “You need to squeeze the fruits, being careful not to break the seeds, and then to put them on linen (亚麻).” The scientist says the detail was important since broken seeds polluted the pigment, producing an inferior quality ink. The dyed linen, which was left to dry, was an efficient way to store and transport the pigment during ancient times. When needed, the artist would simply cut off a piece of the cloth and dip it with water to squeeze out the blue color.

Once the key ingredient had been identified, the researchers began to determine the dye’s molecular structure. To their surprise, they found that folium was not like any other known permanent blue dyes — it was an entirely new class of color, one they named chrozophoridin. “Chrozophoridin was used in ancient times to make a beautiful blue dye for painting.” the team wrote in the study. “Thus, we believe that this will not be our final word on this amazing plant and its story and that further discoveries will follow soon.”

1. The primary purpose of the study is to ________.
A.restore and conserve ancient precious artworks
B.determine the substance making up the folium
C.prove the ancient dye-making technique was organic
D.identify which class of color folium belongs to
2. The underlined phrase “poring over” in the second paragraph means ________.
A.discussing publiclyB.testing repeatedly
C.passing directlyD.reading carefully
3. What can be learned about the blue dye folium?
A.It was essentially an inferior type of ink.
B.It was the only kind made from wild berries.
C.It could be carried and used easily.
D.It was carefully squeezed from broken seeds.
4. The article is mainly about _________.
A.how the mystery of a thousand-year-old blue dye was solved
B.why the researchers took the trouble to recreate the dye
C.what needs to be done to make an organic dye from a plant
D.when and where the discovery of the dye was made
2020-12-26更新 | 672次组卷 | 4卷引用:北京市高一年级-无分类阅读理解名校好题
20-21高三上·北京·阶段练习
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10 . Most of the 500 whales stranded (搁浅)off Tasmania have now died. Dozens more stricken whales have been found in Australia’s largest ever mass stranding.The estimated total now stands at around 500, with the majority of that number dead and a tenth rescued by authorities on the Island state of Tasmania. Experts believe all of the animals would have been part of one large group. Officials began working to rescue survivors among an estimated 270 whales found on Monday on a beach and two sandbars near the remote coastal town of Strahan. Then another 200 whales were spotted from a helicopter on Wednesday less than 10 kilometres (six miles) to the south.All 200 had been confirmed dead by late afternoon. They were among the 380 whales that have died overall, with estimates from earlier today suggesting that 30 that were alive but stranded and 50 had been rescued since Tuesday, Mr Deka, Wildlife Service manager explained. He added,“We’ll continue to work to free as many of the animals as we can.We’ll continue working as long as there are live animals.”

It is not known what caused the animals to run aground. While stranding events are not unheard of, they are very rare in such large numbers. About 30 whales in the original stranding were moved from the sandbars to open ocean on Tuesday, but several got stranded again. About a third of the first group had died by Monday evening.

Australia’s largest mass stranding had previously been 320 pilot whales near the Western Australian town of Dunsborough in 1996.This week’s incident is the first involving more than 500 whales in Tasmania since 2009.Marine Conservation Programme wildlife biologist Kris Carlyon said the latest mass stranding was the biggest in Australia in terms of numbers stranded and died.

Marine scientist Vanessa Pirotta said there were a number of potential reasons why whales might become beached, including navigational errors.She explained, “They do have a very strong social system; these animals are closely bonded and that’s why we have seen so many in this case unfortunately in this situation.Rescuing them does not always work, because they are wanting to return back to the group, they might hear the sounds that the others are making, or they’re just disoriented and, in this case, extremely stressed, and just probably so exhausted that they in some cases don’t know where they are.” she added.

1. What can be inferred from the first paragraph?
A.270 whales were rescued on Monday.
B.380 whales were found dead on Tuesday.
C.500 whales were found stranded and dead.
D.200 whales spotted from a helicopter were dead.
2. Why did Kris Carlyon say this event is the biggest in Australia?
A.Rescue work is not done in time.
B.The number of the death is large.
C.The cause of the event is still a mystery.
D.There was no other similar event in recent years.
3. Which of the following is Not the cause of the stranding of the whales?
A.Navigational errors.
B.Overhunting of the human beings.
C.Whales’ group living style.
D.Whales’ confusion and exhaustion.
4. Where does this passage possibly come from?
A.A newspaper.B.A magazine.C.A textbook.D.A travel brochure.
2020-11-16更新 | 501次组卷 | 7卷引用:北京市高三年级-社会类阅读理解名校好题
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