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文章大意:本文是一篇说明文。作者对Blame My Brain这本书做了介绍和评论,对其中的主要观点进行了摘要,并且对这本书大加赞赏。

1 . “Blame My Brain” by Nicola Morgan, reviewed by Rosalie Warren

As someone who constantly blames my brain for all sorts of things (not my fault — my brain did it!), I was _______ by the title of Nicola Morgan’s book and only slightly disappointed to learn that it was _______ teenagers. Since I have many days when I feel that I am barely out of my teens (though the mirror, sadly, does not bear this out), I decided that the book might still be relevant to me, and indeed to my relationships with my no-longer-teenage children.

The subtitle is “The amazing teenage brain revealed” and amazing is, I soon _______, exactly what the teenage brain is. I learned that one of the things that _______ to the brain in our early teenage years is a flurry of growth of the dendrites (connections between neurons), followed a few years later by a major pruning session where many of the relatively unused connections are culled and the remaining ones are strengthened and coated with a fatty myelin layer ready for adult life. Not _______, all this activity is not without its downside for the person “within”, and it goes along way towards _______ why teenagers can be so difficult to live with and to cope with themselves.

There are also brain-based explanations of why teenagers need so much sleep, why they don’t tidy their rooms, why they come _______ when the rest of the world is going to sleep and why some of them, at least, are risk-takers. There’s stuff about alcohol and drugs and why such things are not good for the brain, but all of it is written in a very _______ and understanding way that I think teenagers will warm to.

Nicola Morgan is not a neurologist or a _______ scientist, but she clearly had done a great deal of research and ________ experts including Professor Simon Baron-Cohen and Professor Susan Greenfield, among many other eminent names in the field. Morgan has a gift for simplifying and explaining ________ subject matter with a light but precise touch, and she is careful to ________ between established facts and theories and speculations of her own and other people’s.

There’s plenty of humour and a good few well-deserved digs at the stupidity of parents and other well-meaning but misguided adults, which teenagers will ________. There are diagrams, tests, photos relating to questions like What emotions can you recognize? Do you ________ other emotions with anger? What kind of thinker are you? Which mental tasks do you find comparatively easy or difficult? There’s also sound advice for addiction, self-harm, depression and other ________ illnesses, and some pointers towards recognizing when you may need to seek help.

The illustrations by Andy Baker are great, too. And oh yes — there’s some interesting discussion on the differences between girls’ brains and boys’, if there are any. You’ll have to read it to find out...

1.
A.attractedB.interestedC.investedD.introduced
2.
A.intended toB.aimed atC.targeted byD.appealed to
3.
A.defendedB.dismissedC.discoveredD.differed
4.
A.happensB.projectsC.evolvesD.limits
5.
A.surprisinglyB.immediatelyC.unfortunatelyD.regularly
6.
A.expressingB.explainingC.declaringD.exposing
7.
A.livingB.livelyC.aliveD.alone
8.
A.sympatheticB.pessimisticC.positiveD.negative
9.
A.laboriousB.humorousC.productiveD.professional
10.
A.consultedB.conductedC.convertedD.suggested
11.
A.complicatedB.simplifiedC.contraryD.demanding
12.
A.denounceB.distinguishC.determineD.depend
13.
A.appreciateB.hateC.respectD.reflect
14.
A.confuseB.combineC.uniteD.associate
15.
A.mindB.physicalC.mentalD.emotional
2024-02-19更新 | 174次组卷 | 1卷引用:上海交大附中嘉定分校2023-2024学年 高一上期末英语考试
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文章大意:这是一篇议论文。作者从自身出发对人工智能创作诗歌这一热点问题进行探讨

2 . Last week, I sent the same request to ChatGPT, the latest artificial-intelligence chatbot from OpenAI. “Upon the Firth of Forth, a bridge doth stand,” it began. In less than a minute, the program had created in full a rhyming Shakespearean sonnet (莎士比亚十四行诗). Tools like ChatGPT seem poised to change the world of poetry — and so much else — but poets also have a lot to teach us about artificial intelligence. If algorithms (算法) are getting good at writing poetry, it’s partially because poetry was always an algorithmic business.

Even the most rebellious (叛逆的) poets follow more rules than they might like to admit. When schoolchildren are taught to imitate the structure of sonnet, they are effectively learning to follow algorithmic constraints. Should it surprise us that computers can do so, too?

But considering how ChatGPT works, its ability to follow the rules for sonnets seems a little more impressive. No one taught it these rules. It is based on a newer kind of AI known as a large language model (LLM). To put it simply, LLMs analyze large amounts of human writing and learn to predict what the next word in a string of text should be, based on context. One frequent criticism of LLMs is that they do not understand what they write; they just do a great job of guessing the next word.

When a private verse by Dickinson makes us feel like the poet speaks directly to us, we are experiencing the effects of a technology called language. Poems are made of paper and ink — or, these days, electricity and light. There is no one “inside” a Dickinson poem any more than one by ChatGPT. Of course, every Dickinson poem reflects her intention to create meaning. When ChatGPT puts words together, it does not intend anything. Some argue that writings by LLMs therefore have no meaning, only the appearance of it. If I see a cloud in the sky that looks like a giraffe, I recognize it as an accidental similarity. In the same way, this argument goes, we should   regard the writings of ChatGPT as merely imitating real language, meaningless and random as cloud shapes.

When I showed my friends the sonnet by ChatGPT, they called it “soulless and barren.” Despite following all the rules for sonnets, the poem is predictable. But is the average sonnet by a human any better? If we now expect computers to write not just poems but good poems, then we have set a much higher bar.

1. What is the main idea of paragraph 1 and paragraph 2?
A.ChatGPT will make a difference to poetry based on algorithms.
B.There is no doubt that AI can copy the grammatical rules of poetry.
C.Poetry guidelines provide a possibility for AI’s poetry writing.
D.There is a similarity between algorithms and poetry.
2. How does ChatGPT write poems?
A.ChatGPT is trained to follow the rules by LLMs.
B.ChatGPT can analyze and predict human languages.
C.ChatGPT is technologically supported by LLMs.
D.ChatGPT itself learn to follow the rules.
3. Why does the author mention Dickinson and cloud in paragraph 4?
A.He talks about cloud to describe the meaninglessness of AI’s poetry.
B.He tells of Dickinson to describe the meaninglessness AI’s poetry.
C.He mentions cloud to suggest its close relationship with AI’s poetry.
D.He refers to Dickinson to suggest her close relationship with AI’s poetry.
4. Which of the following can best describe the author’s attitude towards AI poetry?
A.Acceptable and favorableB.Amazed and admiring
C.Indifferent and uncaringD.Doubtful and uneasy
2024-02-06更新 | 292次组卷 | 2卷引用:湖南省衡阳市第八中学2023-2024学年高一上学期期末考试英语试题
文章大意:本文是记叙文。讲述了拉里的妻子克莱尔需要对一款家用机器人进行测试,虽然不乐意,但是拉里说服了她,酷似人类的机器人托尼给克莱尔带来了很多惊喜。
3 . 【课文原文】

SATISFACTION GUARANTEED

(Adapted)

Larry Belmont worked for a company that made robots. Recently it had begun experimenting with a household robot. It was going to be tested out by Larry’s wife, Claire.

Claire didn’t want the robot in her house, especially as her husband would be away on a business trip for three weeks, but Larry persuaded her that the robot wouldn’t harm her or allow her to be harmed. It would be a bonus. However, when she first saw the robot, she felt alarmed. His name was Tony. He seemed more like a human than a machine. He was tall and handsome with smooth hair and a deep voice, although his facial expression never changed.

On the second morning, Tony brought her breakfast and then asked her whether she needed help dressing. She felt embarrassed and quickly told him to go. Now she was being looked after by a robot that looked so human, and it was disturbing.

One day, Claire mentioned that she didn’t think she was clever. Tony said that she must feel very unhappy to say that. Claire thought it was ridiculous that she was being offered sympathy by a robot, but she gradually admired his wisdom and integrity and began to trust him. He always treated her with dignity. She told him how she was unhappy that her home wasn’t elegant enough for Larry, who wanted to improve his social position with a bigger salary. She wasn’t like Gladys Claffern, one of the richest and most powerful women around.

As a favour, Tony promised to help Claire make herself more beautiful and her home more elegant. So Claire borrowed some library books for him to read, or rather, scan. She looked at his fingers with wonder as they turned each page. How absurd, she thought. He was just a machine.

Tony gave Claire a new hairstyle and improved her makeup. As he was not allowed to accompany her to the shops, he wrote out a list of things that he would need for his work on the house. Claire went downtown and bought these things. She had an appointment to paint her nails,   then she went into an expensive clothes shop. The saleswoman there was rude to her, so she rang Tony and told him she was being treated badly. He spoke to the woman, who immediately changed her attitude. Claire thanked Tony, telling him that he was a “dear”. As she turned around, there stood Gladys Claffern. How awful to be discovered by her, Claire thought. By the look on her face, Claire knew that Gladys thought they were in a relationship. After all, she knew Claire’s husband’s name was Larry, not Tony. Although it was completely innocent, Claire felt guilty.

When Claire got home, she wept. Gladys was everything Claire wished to be. Tony told her she was being sensitive and was just as good as Gladys. He suggested that she invite Gladys and her friends to the house the night before he was to leave and Larry was to return. By that time, Tony expected that the house, which was being completely transformed, would be ready.

Tony worked steadily on the improvements. Claire tried to help by working on a light suspended from the ceiling, but she fell off the ladder. Even though Tony had been in the next room, he managed to catch her in time. As he held her, she felt the warmth of his body. She screamed, pushed him away, and ran to her room.

The night of the party arrived. The clock struck eight. The guests would be arriving soon, so Claire dismissed Tony for the rest of the night. At that moment, Tony took her in his arms, bringing his face close to hers. She heard him declare that he did not want to leave her the next day, and that he felt more than just the desire to please her. Then the front door bell rang.

1. What’s the text mainly about?
A.How to make a robot.
B.How a robot helps people.
C.What a robot can do.
D.A test on a household robot.
2. Match the main idea with each part.
A. The night of the party.
B. Claire’s attitude to the robot and her feeling at the sight of the robot.
C. What Tony did for Claire.
Part 1 (Paras.1-2) ____
Part 2 (Paras.3-8) ____
Part 3 (Para.9) ____
3. What does Larry Belmont think of testing out the robot in his house?
A.It is an extra benefit.B.It is his responsibility.
C.It helps improve his house.D.It can make Claire happy.
4. How did Claire feel when Tony offered to help her get dressed?
A.Proud.B.Happy.
C.Guilty.D.Embarrassed.
5. Why does Tony work on the house improvements?
A.Because Claire wants to hold a party in her house.
B.Because Claire plans to give Larry a surprise.
C.Because Claire doesn’t think it good enough for Larry.
D.Because Claire intends to make the best of Tony.
6. What can we infer from the last paragraph?
A.Tony falls in love with Claire.
B.Tony will have a rest that night.
C.Tony will stay with Claire forever.
D.Tony,the robot needs to be improved.
7. Complete the passage according to the text.

A household robot called Tony was to be tested out in Larry’s house. Though Claire, Larry’s wife, didn’t like ________ idea in the beginning, she was persuaded to let the robot ________ (company) her while her husband was away on a business trip. The robot looked like a tall and handsome man with smooth hair. Though his facial ________ (express) never changed, the robot was ________ (gift) with a charming deep voice. At the sight of Tony, Claire felt alarmed because he seemed ________ (much) like a human than a machine. So when Tony offered to help her get dressed, Claire felt more than embarrassed.

However, Tony gradually won Claire’s trust. He took good care of Claire and even managed to rescue her ________ she fell off the ladder. He also helped Claire realize her dream by ________ (make) her home elegant, giving her a new haircut and retouching her makeup. He advised her to throw a party and expected all the guests who ________ (invite) would be filled with admiration when they saw her house was ________ (complete) transformed. And Tony said he was so attached ________ her that he was unwilling to leave.

8. Analyse and translate the sentences.
(1)Claire didn’t want the robot in her house, especially as her husband would be away on a business trip for three weeks, but Larry persuaded her that the robot wouldn’t harm her or allow her to be harmed.
______________________________________________________________________
______________________________________________________________________
(2)Claire thought it was ridiculous that she was being offered sympathy by a robot, but she gradually admired his wisdom and integrity and began to trust him.
______________________________________________________________________
______________________________________________________________________
(3)She told him how she was unhappy that her home wasn’t elegant enough for Larry, who wanted to improve his social position with a bigger salary.
______________________________________________________________________
______________________________________________________________________
2024-02-05更新 | 10次组卷 | 1卷引用:人教版(2019) 选择性必修四 Unit 1 Science Fiction Section Ⅰ Reading and Thinking
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文章大意:这是一篇说明文。主要介绍了原子形状是如此简单以至于它们不能被进一步分解。人工智能正在帮助数学家建立一个形状的周期表。

4 . Atomic shapes are so simple that they can’t be broken down any further. Mathematicians are trying to turn to artificial intelligence (AI) for help to build a periodic table of these shapes, hoping it will assist in finding yet-unknown atomic shapes.

Tom Coates at Imperial College London and his colleagues are working to classify atomic shapes known as Fano varieties, which are so simple that they can’t be broken down into smaller components. Just as chemists arranged element s in the periodic table by their atomic weight and group to reveal new insights, the researchers hope that organizing these atomic shapes by their various properties will help in understanding them.

The team has given each atomic shape a sequence of numbers based on its features such as the number of holes it has or the extent to which it bends around itself. This acts as a bar code (条形码) to identify it. Coates and his colleagues have now created an AI that can predict certain properties of these shapes from their bar code numbers alone, with an accuracy of 98 percent.

The team member Alexander Kasprzyk at the University of Nottingham, UK, says that the AI has let the team organize atomic shapes in a way that begins to follow the periodic table, so that when you read from left to right, or up and down, there seem to be general patterns in the geometry (几何) of the shapes.

Graham Nib lo at the University of Southampton, UK, stresses that humans will still need to understand the results provided by AI and create proofs of these ideas. “AI has definitely got unbelievable abilities. But in the same way that telescopes (望远镜) don’t put astronomers out of work, AI doesn’t put mathematicians out of work,” he says. “It just gives us new backing that allows us to explore parts of the mathematical landscape that are out of reach.”

The team hopes to improve the model to the point where missing spaces in its periodic table could point to the existence of unknown shapes.

1. What is the purpose of building a periodic table of shapes?
A.To gain deeper insights into the atomic shapes.
B.To create an AI to predict the unknown shapes.
C.To break down atomic shapes into smaller parts.
D.To arrange chemical elements in the periodic table.
2. What can the bar code of each atomic shape tell us?
A.Its holes.B.Its bends.
C.Its atomic weight.D.Its properties.
3. What does the underlined word “backing” in paragraph 5 mean?
A.Design.B.Help.C.Duty.D.Threat.
4. What is the main idea of the text?
A.Thanks to AI, new atomic shapes have been discovered.
B.Mathematicians turn to AI to create more atomic shapes.
C.AI helps build a relationship between chemistry and maths.
D.A periodic table of shapes can be built with the help of AI.
智能选题,一键自动生成优质试卷~
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文章大意:这是一篇说明文。文章讲述了人工智能在未来能够进入医院,为病人诊断并确认疾病,但还需要很多研究才能赶的上真正的医生。

5 . In US emergency rooms (ER), the average wait time to see a doctor is more than two hours. There are more patients in need than there are doctors, nurses and other staff to help them. Many parents have suffered through hours in the ER with a sick, upset child, only to get sent home because their case is not considered urgent. What if there was another choice—like a house call from an intelligent machine?

Now, a new study shows that AI systems can assess (评估) a child’s medical chart and come up with a diagnosis (诊断), a determination of what is wrong with that patient.

The study took place at Guangzhou Women and Children’s Medical Center in southern China. First, a team of doctors reviewed 6, 183 medical charts. They summarized the information in these charts into a list of keywords linked to disease-related symptoms or signs, such as “fever”. Researchers then taught these keywords to the AI system. Once trained, the system scanned children’s charts for the key terms, checking if they were present or not in order to come to a conclusion. Finally, it offered diagnoses based on the charts, narrowing down from among 55 illness categories.

Dongxiao Zhu, an assistant professor of computer science at Wayne State University who did not take part in the study, however, sees this as “augmented intelligence (增强智能)” rather than “artificial intelligence”, because the system handled only 55 illness categories. Compare that to thousands of possibilities in the real world. The machine cannot yet get into the more complex aspects of a medical decision.

Zhu is also concerned about the amount of human work that went into the study—namely, the time and energy spent by human doctors. They spent hours grading the machine’s assessments and comparing them to their own. It’s no wonder that the process took four years. Considering that, it may be a while before you can skip the ER and see a robot-doctor instead.

1. What can we infer from Paragraph 1?
A.Patients pay too much for the ER.
B.American doctors aren’t responsible.
C.Children are treated urgently in the ER.
D.The emergency rooms are crowded with patients.
2. What does the author mainly intend to show in the text?
A.AI systems still have a long way to go.
B.AI systems diagnose disease like doctors.
C.AI systems will take over from doctors someday.
D.AI systems get into complex medical decisions.
3. How does AI system determine a patient’s disease?
A.By examining a patient first.
B.By reviewing many medical charts.
C.By scanning keywords about a disease.
D.By observing disease-related symptoms.
4. What does Zhu think of AI doctors?
A.They need to be improved a lot.
B.They will replace real doctors soon.
C.They are suitable for complex disease.
D.They help doctors make a quick analysis.
2023-12-16更新 | 211次组卷 | 1卷引用:天津市第五十四中学2023-2024学年高二上学期12月月考英语试题
文章大意:本文为说明文。文章讨论了幻灯片带来的恐慌。

6 . The Great PowerPoint Panic of 2003.

Sixteen minutes before touchdown on the morning of February 1, 2003, the space shuttle Columbia (“哥伦比亚”号航天飞机)______ into the cloudless East Texas sky. All seven astronauts aboard were killed. As the shattered shuttle flew toward Earth in pieces, it looked to its live TV viewers like a swarm of shooting stars.

The immediate ______ of the disaster, a report from a NASA Accident Investigation Board determined that August, was a piece of insulating foam (绝缘泡沫胶) that had broken loose and damaged the shuttle’s left wing soon after liftoff. But the report also   ______ out a less direct, more surprising cause. Engineers had known about - and inappropriately______ - the wing damage long before Columbia’s attempted reentry, but the flaws in their analysis were ______ in a series of overstuffed computer-presentation slides that were shown to NASA officials.

By the start of 2003, the phrase “death by PowerPoint” had well and truly entered the ______ vocabulary. Edward Tufte was the first to have taken it literally: That spring, the Yale statistician published a booklet entitled The Cognitive Style of PowerPoint, whose core argument was that the medium of communication influences the substance of communication. While PowerPoint, as a medium, did not ______ create unclear, lazy presentations, it certainly ______ and sometimes even masked them — with potentially deadly consequences. This is exactly what Tufte saw in the Columbia engineers’ slides.

Wired ran an excerpt (节选) from Tufte’s booklet in September 2003 under the headline “PowerPoint Is Evil.” A few months later, The New York Times Magazine included his assessment — summarized as “PowerPoint Makes You Dumb” — in its ______ of the year’s most important ideas. “Perhaps PowerPoint is uniquely suited to our modern age of confusion,” the entry read.

Despite the backlash it inspired in the ______, the presentation giant rolls on. The program has more monthly users than ever before, well into the hundreds of millions. During lockdown, people ______ PowerPoint parties on Zoom. Kids now make PowerPoint presentations for their parents when they want to get a puppy. If PowerPoint is evil, then evil ______ the world.

On its face at least, the idea that PowerPoint makes us stupid looks like a textbook case of misguided technological doomsaying. Today’s concerns about social media somehow resemble the PowerPoint critique. Both boil down to a worry that new media technologies ______ form over substance, that they are designed to hold our attention rather than to convey truth, and that they make us stupid.

______, concerns about new media rarely seem to make a difference. If the innovation did change the way we think, we are measuring its effects with an altered mind. Either the critical remarks were wrong, or they were so right that we can no longer tell the   ______.

1.
A.disappearedB.disintegratedC.distributedD.disappointed
2.
A.sideB.causeC.featureD.issue
3.
A.collectedB.unifiedC.droppedD.single
4.
A.discountedB.viewedC.accessedD.founded
5.
A.mutedB.absorbedC.buriedD.sunk
6.
A.technicalB.popularC.negativeD.special
7.
A.possiblyB.reasonablyC.ordinarilyD.necessarily
8.
A.accommodatedB.combinedC.distinguishedD.enhanced
9.
A.abstractB.repetitionC.reviewD.brief
10.
A.pressB.publicationC.mediaD.criticism
11.
A.openedB.createdC.threwD.jumped
12.
A.rulesB.harmonizesC.impactsD.roars
13.
A.featureB.encourageC.valueD.defend
14.
A.ThereforeB.HoweverC.CertainlyD.Surprisingly
15.
A.differenceB.truthC.timeD.concern
22-23高一上·上海浦东新·阶段练习
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文章大意:这是一篇说明文。文章介绍了阻止有压力的情况破坏你的一天,管理压力的实用方法。

7 . Armed with a toolkit of techniques and tricks to calm the mind and bring focus back to your body, you can stop stressful situations from sabotaging your day, says Katy Georgiou.


GROUND YOURSELF

Making contact with the ground is your baseline go-to response for stress. This technique can be especially helpful if you find your stress regularly turns into panic. Wherever you are, whatever you’re doing, place your feet flat on the ground so that you feel stable, and then close your eyes. If you’re able to sit on the floor cross-legged or to lie down flat, then even better.

Think of this as earthing: really connect with the ground beneath your body. Some studies suggest that this simple act can help reduce or relieve symptoms of stress such as pain and fatigue, reduce blood pressure, and improve sleep. If you’re feeling disconnected from the world, it can also remind you that you belong to it and are a crucial part of it — the ground will always be there for you.


LOVE THYSELF

Adopting regular, daily or weekly routines for self-care can be very containing, creating consistency amid all sorts of stressful life events happening around you. Looking in the mirror each day can actually remind you that you exist, so feel free to factor some reflective gazing into your daily routine, whether it’s while applying moisturiser, shaving, or brushing your hair. Studies have shown that being confronted with your reflection can have powerful effects, taking us out of our heads and into the immediate present. For added effect, pay attention to the way your products interact with your hair and skin as you apply them.

Playing around with smells, colours and textures in your hands will also engage your senses. Using a scented shampoo or smoothing on body lotion after a warm bath can be easy ways to do this.


CLEAR YOUR MIND

Abandon all your thoughts and try to focus only on your surroundings. What can you see, hear, smell, taste and touch? Identify three things you can hear, one thing you can taste, four things you can see and two things you can feel on your skin. Pick out colours in the room you are sitting in, notice textures and different kinds of light. If somebody is with you, tell them what you are experiencing. The point here is that your senses are your best and easiest route back to feeling calm, by coming out of your head and rooting yourself back in the present. This is incredibly helpful if you’re having a panic attack or flop response.

1. If your friend Jane always feels worn out and suffers from sleep deprivation, which of the following techniques will you especially recommend to her?
A.Connect her body to the ground beneath her.
B.Adopt a daily gaze at her reflection in the mirror.
C.Exchange her scentless shampoo for an aromatic one.
D.Focus on what she can see, hear, smell, taste and touch.
2. Which of the following statements is NOT TRUE according to the passage?
A.Lying down flat can better relieve your stress.
B.Grounding yourself can give you a sense of belonging to the world.
C.Brushing your hair while looking in the mirror can remind you of your existence.
D.Those having a panic attack should shut their senses down.
3. The passage is intended to __________.
A.help people understand themselves better
B.introduce some practical methods for stress management
C.emphasize the significance of exploiting multiple senses
D.promote a mindset of living in the moment
2023-08-15更新 | 493次组卷 | 3卷引用:上海市浦东新区华东师范大学第二附属中学2022-2023学年高一上学期12月月考英语试题
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文章大意:本文是说明文。科学家发现,人类五个手指的形成原因是由三种分子精心策划的,不过,还有很多东西有待发现。

8 . How Did You Get Five Fingers?

Your arms and toes began as tiny buds that sprouted from your sides when you were just a four-week-old embryo (胚胎). By six weeks, these limb buds had grown longer and five rods of cartilage 软骨) had appeared in their flattened tips. By week seven, the cells between the rods had died away, forming five small fingers or toes from once-solid masses of flesh.

Now, a team of scientists led by James Sharpe from the Centre for Genomic Regulation in Barcelona has discovered that these events are carefully orchestrated by three molecules. They mark out zones in the embryonic hand where fingers will grow, and the spaces in between that are destined to die. Without such molecules, pianos and keyboards wouldn’t exist, and jazz hands would be jazz palms.

These three molecules work in a way first envisioned by Alan Turing, a legendary English mathematician and code-breaker. Back in 1952, Turing proposed a simple mathematical model in which two molecules could create patterns by spreading through tissues and interacting with each other. For example, the first molecule might activate the second, while the second blocks the first. Neither receives any guidance about where to go; through their dance, they spontaneously organize themselves into spots or stripes.

Since then, many scientists have found that these Turing mechanisms exist. They’re responsible for a cheetah’s spots and a zebrafish’s stripes. For 30 years, people have also suggested that they could sculpt our hands and feet, but no one had found the exact molecules involved.

Sharpe knew that these molecules would need to show a striped pattern. Sox9 seemed like the most promising candidate. It is activated in a striped pattern from a very early stage of development. By comparing cells where Sox9 is active or inactive, Jelena Raspopovic and Luciano Marcon found two other groups of genes—Bmp and Wnt—also formed striped patterns. Bmp rises and falls in step with Sox9 and both are active in the digits. Wnt is out of phase; it’s active in the gaps. The three molecules also affect each other: Bmp activates Sox9 while Wnt blocks it; and Sox9 blocks both of its partners. It looked like these were the molecules the team was searching for not a pair, as Turing suggested, but a trinity. To confirm this, they created a simulation of a growing limb bud and showed that Sox9, Bmp and Wnt could organize themselves into a pattern of five stripes, by activating and blocking each other.

There’s still a lot to discover, though. For example, I’ve used Bmp and Wnt as shorthands here—in reality, each represents a class of several molecules, and the team still needs to work out which specific member is part of the Turing’s proposal.

1. The underlined sentence in the second paragraph means that ________.
A.some certain molecules are necessary for the growth of human fingers
B.the development of embryos is dependent on some certain molecules
C.without some certain molecules, music won’t exist in this world
D.the molecules work in a way that Alan Turing once offered
2. What can we learn from the example given in the third paragraph?
A.Molecules interact by following a strict mathematical model.
B.Molecules have a strong will to form patterns in nature.
C.The formation of patterns in nature may be dominated by molecules.
D.Alan Turing was able to track down the movement of molecules.
3. What is “Sox9” according to the passage?
A.A protein that determines humans’ development in childhood.
B.A gene especially important for the development of our limbs.
C.A striped pattern that always interacts with Bmp and Wnt.
D.A simulation of growing limbs that activate and block each other.
4. Which of the following statements is TRUE according to the passage?
A.How human limbs are developed may well be similar to how animal spots are shaped.
B.The way Sox9 interacts with Bmp and Wnt is still a mystery that needs further studying.
C.Sox9 can activate both Bmp and Wnt to form our limbs, according to scientific research.
D.Sox9, Bmp and Wnt are three specific molecules that determine the growth of fingers.
2023-06-16更新 | 433次组卷 | 1卷引用:Unit 4 Future Living Unit Test B卷 (上外版2020)
阅读理解-阅读单选 | 困难(0.15) |
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文章大意:本文是说明文。没有人是一座孤岛,文章陈述了“群体智慧”效应。实验表明,在某些情况下大量独立估计的平均值可能是相当准确的。

9 . On March 7, 1907, the English statistician Francis Galton published a paper which illustrated what has come to be known as the “wisdom of crowds” effect. The experiment of estimation he conducted showed that in some cases, the average of a large number of independent estimates could be quite accurate.

This effect capitalizes on the fact that when people make errors, those errors aren’t always the same. Some people will tend to overestimate, and some to underestimate. When enough of these errors are averaged together, they cancel each other out, resulting in a more accurate estimate. If people are similar and tend to make the same errors, then their errors won’t cancel each other out. In more technical terms, the wisdom of crowds requires that people’s estimates be independent. If for whatever reasons, people’s errors become correlated or dependent, the accuracy of the estimate will go down.

But a new study led by Joaquin Navajas offered an interesting twist (转折) on this classic phenomenon. The key finding of the study was that when crowds were further divided into smaller groups that were allowed to have a discussion, the averages from these groups were more accurate than those from an equal number of independent individuals. For instance, the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.

In a follow-up study with 100 university students, the researchers tried to get a better sense of what the group members actually did in their discussion. Did they tend to go with those most confident about their estimates? Did they follow those least willing to change their minds? This happened some of the time, but it wasn’t the dominant response. Most frequently, the groups reported that they “shared arguments and reasoned together”. Somehow, these arguments and reasoning resulted in a global reduction in error. Although the studies led by Navajas have limitations and many questions remain, the potential implications for group discussion and decision-making are enormous.

1. What is paragraph 2 of the text mainly about?
A.The methods of estimation.B.The underlying logic of the effect.
C.The causes of people’s errors.D.The design of Galton’s experiment.
2. Navajas’ study found that the average accuracy could increase even if ________.
A.the crowds were relatively smallB.there were occasional underestimates
C.individuals did not communicateD.estimates were not fully independent
3. What did the follow-up study focus on?
A.The size of the groups.B.The dominant members.
C.The discussion process.D.The individual estimates.
4. What is the author’s attitude toward Navajas’ studies?
A.Unclear.B.Dismissive.C.Doubtful.D.Approving.
2023-06-11更新 | 11133次组卷 | 17卷引用:2023年新课标全国Ⅰ卷英语真题(含听力)
完形填空(约440词) | 困难(0.15) |
名校
文章大意:本文是一篇说明文,介绍了在网络社会报纸向网上世界的“过渡”,这是一个不确定且非常不舒服的过程。同时保证印刷品也是销售互联网订阅的重要工具。是屏幕还是纸张?把二者结合才能共赢。

10 . Transition. It’s a pleasant word and a calming concept. It means going surely and sweetly from somewhere present to somewhere future. Unless, that is, it is newspapers’ ‘transition’ to the _______ world, an uncertain and highly uncomfortable process.

Just look at the latest print circulation figures. The Daily Telegraph, The Guardian and many of the rest are down overall between 8% and 10% year-on-year, but their websites go ever higher.

All of that may well be true, depending on timing, geography and more. _______, everyone— from web academics to print analysis—says so. Yet pause for a while and count a few little things that don’t _______.

One is the magazine world, both in the UK and in the US. It ought to be _______, wrecked by the move to the tablets which fit existing magazine page sizes so perfectly. But, in fact, the rate of decline in magazine purchasing is relatively small, with subscriptions holding up strongly and advertising remarkable _______.

As for news and current affairs magazines — which you’d expect to find in the eye of the digital storm — they had a 8.4% increase to report. In short, on both sides of the Atlantic, although some magazine areas went down, many showed rapid growth.

You can discover a _______ phenomenon when it comes to books, Kindle and similar e-readers are booming, with sales up massively this year. The apparent first step of transition couldn’t be _______. Yet, when booksellers examined the value of the physical books they sold over the last six months, they found it just 0.4% down. Screen or paper, then? It wasn’t one or the other: it was _______.

So if sales in that area have fallen so little, perhaps the _______ mostly affects newspapers? Yet again, though, the messages are oddly ________. The latest survey of trends by the World Association of Newspapers shows that global circulation rose 1.1% last year (to 812 million copies a day). Sales in the West dropped back but Asia more than ________ the difference.

Already 360 US papers—including most of the biggest and best — have built paywalls around their products. However, the best way of attracting a paying readership appears to be a deal that offers the print copy and digital access as some kind of ________ package.

________, print is also a crucial tool in selling internet subscriptions. And its advertising rates raise between nine and ten times more money than online.

Of course this huge difference isn’t ________ news for newspaper companies, as maintaining both an active website and an active print edition is difficult, complex and expensive. But newspaper brands still have much of their high profile in print: a drift on the web, the job of just being ________ becomes far harder.

1.
A.publishingB.onlineC.idealD.unknown
2.
A.On the other handB.After allC.To begin withD.For instance
3.
A.stopB.existC.emergeD.fit
4.
A.regulatedB.advancingC.collapsingD.minimized
5.
A.solidB.simpleC.creativeD.changeable
6.
A.culturalB.commonC.scientificD.similar
7.
A.laterB.harderC.clearerD.slower
8.
A.allB.neitherC.bothD.either
9.
A.serviceB.systemC.crisisD.figure
10.
A.rightB.vagueC.designedD.mixed
11.
A.made upB.told apartC.took overD.held on
12.
A.jointB.mysteriousC.modernD.complex
13.
A.In other wordsB.On the contraryC.What’s moreD.Even so
14.
A.newB.sadC.bigD.good
15.
A.sparedB.updatedC.noticedD.edited
共计 平均难度:一般