第16练阅读理解之说明文10篇
C．To tell us we should make use of every difficulty to improve ourselves.
D．To tell us we should prove how strong we can be.
（2023春·重庆·高一重庆巴蜀中学校考期中）If you hold up a seashell to your ear,you will hear the sea, no matter how far inland you currently are.In fact,it is not the case.So,what’s actually going on here?
One popular explanation is that you are listening to your own blood coursing through you.Popular as this blood theory is,it doesn’t hold water.“Press your ear to a shell and listen,then run around on the beach for a few minutes to increase the blood flow all through your body,and again listen to your magic shell,”Kruszelnicki wrote.“You’ll find that the loudness of the‘sound of the sea is still the same’.”
If we truly were hearing the sound of our blood rushing through our bodies,that wouldn’t be the case: exercising makes your blood pressure rise,which would thus increase the supposed sounds being“reflected”by the shell.The fact that we don’t hear a difference before and after exercise,therefore,makes quite an evident statement.
There’s another idea that the“sea”you can hear in a shell is actually air-air flowing through the shell and out again,which creates the noise.“In a soundproof room,you won’t hear anything from a shell,”con
firmed Andrew King,director of the University of Oxford’s Centre for Integrative Neuroscience.“Background noise must be present.”That’s the biggest clue as to what’s really going on here:the sounds we hear“inside”seashells are not coming from inside our bodies,but rather around them.
“You are hearing surrounding or background noise that has been increased in amplitude(振幅)by the physical characteristic of the seashell,”King explained,“the specific sounds we hear within a shell depend on the exact shape of itself-the hard,curved surfaces inside the shell cause the sound waves that enter to bounce around, increasing some frequencies while reducing others.”
sort out the factsSeashells may be the most poetic of ways to experience this resonance(共振),but they’re definitely not the only method-pretty much any convex(凹面的)surface will do.
5．What is the author’s attitude toward the blood theory in paragraph2?
A．Opposing.B．Supportive.C．Defensive.D．Unconcerned.
6．What can we infer from Andrew King’s words?
A．Background noise can be heard in a soundproof room.
B．The sound from seashells is the changed noise around you.
C．The shape of seashells can help produce the same sea sound.
D．Sound waves can bounce around to increase them in your ears.
7．What is the text mainly about?
A．Why you can hear the sea from a seashell.
B．How people explore the secret of seashells.
C．Why popular beliefs sometimes prove wrong.
D．How scientists produce a sound as a seashell does.
8．What do you think the author will mention next?
A．Different types of seashells.B．Causes of the sea sound.
C．The sound in soundproof rooms.D．Ways to set off resonance.
（2023春·重庆·高一重庆巴蜀中学校考期中）Long before the pandemic(疫情),many adults turned to toys from Legos to collectible items to tap into their inner childhood for comfort.But all the stresses from the health problems stimulated(刺激)and strengthened the trend,according to Jim Silver,editor-in-chief of a toy review site.
This so-called“kid-adult”market is significant.Ages18and older represented14%of industry sales,or$5.7billion in2022.It grew19%compared with that in2021,according to the NPD Group Inc.,a market research firm.This group also enjoyed the second-fastest increase after customers aged12to17.
Last year,Build-a-Bear launched a website called Bear Cave for the18-year-old and over,highlighting items like toy rabbits holding a bottle of wine.And Basic Fun took a high-tech on the traditional Lite Brite toy from the 1960s and recreated it as wall art with thousands of pegs and45LED lights aimed at the adults in time for the holidays-with a$99price tag.McDonald’s tapped into this group,releasing adult Happy Meals in October with toys designed by the fashion brand Cactus Plant Flea Market.
Loren Brereton,61,was recently visiting the American Girl store with her granddaughter Alana,7.She said that during the pandemic,she took comfort looking at her own daughter’s dolls.She also pulled out
some of her son’s Lego’s and other toys and played with them.And she was thinking of buying a few playthings for herself.“All of those games have brought me comfort when I was a kid,but,you know,sort of changed you at different times when you needed it,”she said.“And you needed it.”
“The pandemic certainly served as a stimulus for this trend as adults found themselves stuck at home with nothing else to do with a lot of time in their hands,”said Genevieve Cruz,senior director at Lego,“But we do believe that the trend goes beyond the pandemic.”
9．What do we know about the industry?
A．It drew more adults than teenagers.B．It used to be no attraction to adults.
C．It saw a big growth in adult market.D．It brought customers health problems.
10．What is the main idea of Paragraph3?
A．Adult toys gradually took over the toy industry.
B．Adults had easy access to toys intended for adults.
C．Many companies launched products targeted at adults.
D．Some companies producing adult toys were established.
11．What do toys bring Loren Brereton?
A．Inspiration.B．Satisfaction.C．Regret.D．Comfort.
12．Which of the following will Jim Silver and Genevieve Cruz both agree with?
A．Adults are the main target of the toy industry.
B．Adult toys won’t be popular after the pandemic.
C．Health problems created the craze for adult toys.
D．The pandemic worked as a stimulus to adult toys.
（2023春·贵州贵阳·高一校联考阶段练习）Beijing Opera is a kind of Chinese opera which is widely regarded as one of the cultural treasures of China.With its fascinating and artistic accompanying music,singing and costumes,Beijing Opera is China’s national opera.Full of Chinese cultural facts,the opera presents the audience with an encyclopedia(百科全书)of Chinese culture,as well as unfolding st
ories,beautiful paintings, nice costumes,graceful gestures and martial arts.Since Beijing Opera enjoys a higher reputation and is so popular among Chinese people,especially seniors.
The Beijing Opera band mainly consists of an orchestra and percussion(打击乐)band.The former frequently accompanies peaceful scenes while the latter provides the right atmosphere for battle scenes.The commonly used percussion instruments include castanets(响板),drums and bells.
Beijing Opera has a200-year-long history.Its main melodies originated from Xipi and Erhuang in Anhui and Hubei respectively and,over time,absorbed music and arias from other operas and musical arts such as the historic Qinqiang as well as being very strongly influenced by Kunqu,the form that preceded it as court art. Techniques from many other local operas were incorporated into Beijing Opera.
It is believed that Beijing Opera gradually came into being after1790when the famous four Anhui opera troupes came to Beijing.Beijing Opera underwent fast development during the reign of Emperor Qianlong and the notorious Empress Dowager Cixi under the imperial patron,eventually becoming more accessible to the common people.
In ancient times,Beijing Opera was performed mostly on stage in the open air,tea houses or temple co
urtyards.Since the orchestra played loudly,the performers developed a piercing style of song that could be heard by everyone.Beijing Opera is a harmonious combination of the Grand Opera,ballet and acrobatics(杂技), consisting of dance,dialogue,monologues(独白),martial arts and mime(哑剧).
In1828,some famous Hubei troupes came to Beijing.They often jointly performed in the stage with Anhui troupes.The combination gradually formed Beijing Opera’s main melodies.
13．By watching Beijing Opera,audience can______.
A．know about the5,000years’history of our country
B．learn about different aspects of Chinese culture
C．know about the printing of various books in China
D．learn about different opinions about Chinese culture
14．What provides the atmosphere for battle scenes?
A．The applause of the audience.B．The song of the performers.
C．The percussion band.D．The orchestra band.
15．The performers developed a piercing style of song in order to______.
A．make themselves heard B．fit in with the orchestra
C．get the right to go on stage D．have a harmonious combination
16．What do the last4paragraphs mainly tell us?
A．The performance of Beijing Opera.B．The popularity of Beijing Opera.
C．The melodies of Beijing Opera.D．The history of Beijing Opera.
（2023春·贵州贵阳·高一校联考阶段练习）Goldfish have pretty boring lives,so maybe it’s a good thing that they can only concentrate for nine seconds!But according to a new research,humans are becoming like goldfish.Our attention span(时长)is getting shorter and it’s all because of technology.
“We move quickly from one site to another on the web,”says Doctor Ted Selker,a computer scientist from Massachusetts,“and we are losing the ability to concentrate.”With millions of websites to choose f
rom,the attention span of the average Internet user is just seconds.There are other digital distractions(分心)too:e-mail, instant messaging and quickie movies on websites.
Some people are worried about the effect on young people.“You need time to understand and think about what you read”,says Julia Wood,from London.“Young people search the net all the time and their brains become full of useless information but there is no time to make sense of it.I am trying to persuade my pupils to read more books,so that they concentrate on one subject for longer.”
Other teachers are trying more unusual methods to improve students’concentration.Anne Savan,from Wales, was so worried about her students that she started playing Mozart during her science lessons.She says that it had an amazing effect,“The music made them calmer,and their concentration was much better.”
But not everyone believes that there is a problem.Ray Cole,an educational psychologist says,“On the web, young people learn to make quick decisions about what is and isn’t worth reading.They might look at five unhelpful websites very quickly,before stopping and reading a sixth useful website more carefully.In a world with so much information available,this is an important skill.”
17．Why are humans becoming like goldfish?

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