I often find peacefulness in a soaring stone church,a cool open place to sit and contemplate.The giant trunk-like pillars(柱子) and the gentle play of the light cast through a church's stained glass windows create a shaded garden of stone and multicolored light.
Glass itself is one of the fruits of the art of fire.It is a fusion(熔接)of the Earth's rocks melted at high temperatures.Glass's liquid-like structure is one of the main reasons it is transparent(透明的).However,"transparent" does not necessarily mean that all light can pass through it.Some obsidian(黑曜石) glasses are so darkly colored that they are effectively black and opaque(不透光的).This is because electrons of some elements in the obsidian are arranged in such a way that their energy is the same as the energy of visible light.
This ability of certain elements to absorb light and give color is used to great effect in stained glass windows.For example,adding cobalt oxide(氧化鈷) to the glass during melting will make it blue because cobalt absorbs wavelengths at the red end of the spectrum(光譜)but does not absorb blue.These colors were discovered by the ancients through trial and error,adding different minerals to the melting pot and melting for different periods of time,even though they had no idea what caused them.
The term "stained glass" telescopes(精簡(jiǎn)) three different processes:coloring,staining and painting,each one complex and requiring the application of many skills.In the mid-16th century,however,different colored enamels (琺瑯) began to be used.It has been said that the appearance of enameling was the death of the great stained glass window artists.I am not sure if this is true,but I do know that standing in front of a great stained glass window is a magical experience.Next time you are in a soaring cathedral,take a moment to admire the windows.
(1)Why does the author write this passage? BB
A.To show the actual way to make stained glass.
B.To express his appreciation of stained glass.
C.To talk about the function of stained glass.
D.To review the history of stained glass.
(2)What does "their energy" underlined in paragraph 2 refer to? CC
A.The energy of high temperatures.
B.The energy of obsidian glasses.
C.The energy of some electrons.
D.The energy of all elements.
(3)How is stained glass made? DD
A.By melting some of the Earth's rocks with sun energy.
B.By painting some colors on rocks before melting them.
C.By absorbing fire and sunlight to make varied colors.
D.By adding some minerals to glass when it is melted.
(4)What can we know from the last paragraph? CC
A.Stained glass was invented in the mid-16th century.
B.Making enamels was more complex than making stained glass.
C.The number of stained glass artists may have declined since the 1550s.
D.The author admiringly welcomes the change caused by colored enamels.
【考點(diǎn)】說明文.
【答案】B;C;D;C
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2024/5/27 14:0:0組卷:2引用:1難度:0.5
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1.Most of us spend our lives seeking the natural world.We go fishing,sit in the garden,have a picnic,live in the suburbs or go to the seaside.The most popular leisure activity in Britain is going for a walk.When joggers jog,they don't run on the streets.Every one of them tends to go to the park or the river.
But despite this,our children are growing up naturedeprived(剝奪).I spent my boyhood climbing trees.These days,children are robbed of the ancient freedom,due to problems like crime,traffic,the loss of the open space and strange new ideas about what is best for children,that is to say,things that can be bought,rather than things that can be found.
The truth is to be found elsewhere.A study in the US:families had moved to better housing and the children were assessed for ADHD—Attention Deficit Hyperactivity Disorder(注意力缺陷多動(dòng)癥).Those whose accommodation had more natural views showed an improvement of 19%;those who had the same improvement in material surroundings but no nice view improved just 4%.
ADHD is one of the great problems of modern childhood.One study after another indicates that contact with nature gives huge benefits to ADHD children.However,we spend money on drugs rather than on green places.
The life of old people is measurably better when they have access to nature.The increasing concern for the growing population of old people is in quality rather than quantity of years.And study after study finds that a garden is the single most important thing in finding that quality.Even problems with crime and aggressive behaviour are reduced when there is contact with the natural world.
We need the wild world.It is essential to our wellbeing,our health and our happiness.
(1)According to the author,people enjoy
A.jogging on the street
B.running in the gym
C.shopping in the supermarket
D.sitting in the garden
(2)From the second paragraph,we can see that
A.Children don't want to approach nature
B.children probably spend less time in nature nowadays
C.climbing trees will certainly do good to the children
D.children tend to be happier as a result of their material satisfaction
(3)In what way do people benefit from their contact with nature?
A.Children with ADHD can be cured.
B.Children's performance at school is greatly improved.
C.Problems with crime and violent behavior will easily be solved.
D.A garden nearby improves the quality of old people's life.
(4)what is the main idea of this passage?
A.Access to nature improves our life.
B.Nature treats children for ADHD.
C.Getting close to nature reduces crime.
D.Man can't live without natural areas.發(fā)布:2025/1/6 16:30:6組卷:0引用:1難度:0.5 -
2.It is widely believed that biodiversity(生物多樣性)is promoted to save species.But in reality species exist only as part of ecosystems and cannot survive unless their ecosystems are protected along with as much as possible of the diversity they contain.
Protecting habitats(棲息地)is important for keeping biodiversity.In 2003,over 102,000 habitats covering nearly 19 million square kilometres,or 11.5% of the world's land surface,were under some form of protection.Though this is a great improvement since 1962,when just 1,000 protected habitats were listed,it is still not considered enough to stop the ecocide that is endangering the world's biodiversity.
For a number of environmentalist,protecting the world's 25 biodiversity hotspots(熱點(diǎn)地區(qū))is critical to saving habitats and species.But many hotspots are endangered already,having lost up to three-quarters of their original plants.
The poor state of most biodiversity hotspots results directly from population growth and migration(遷移) into these areas.A study found that by the mid-1990s around 1.1 billion people lived in these hotspots.Moreover,the annual population growth rate in these areas was 1.8%,higher than the global average of 1.4%.The PAI report concluded that human-related environmental changes will continue to put pressure on hotspots.Therefore,keeping biodiversity requires paying close attention to population size.
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(1)What can we infer from paragraph 1?
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C.They wouldn't bring any potential danger to their family.
D.They can learn better with their classes moved online.
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A.The new rule treats them as American citizens.
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C.The new rule guides them to plan to return to the US.
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A.Favorable.
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D.Unclear.
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D.Unbelievable.發(fā)布:2025/1/6 15:30:8組卷:0引用:1難度:0.5
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