The National Gallery of Art in Washington, D.C., is one of the world's greatest art museums. Millions of people have entered its doors to see paintings by the world's fine artists. But if these priceless masterpieces are to be preserved, the Gallery must protect them carefully. The Gallery's 135-man guard force has successfully prevented them from being stolen, but protecting the paintings from nature is a greater problem.

In past times, the owners of paintings did not protect them from damaging changes in humidity (濕度) and temperature. As a result, the life of these paintings were shortened. In the National Gallery, however, humidity and temperature are carefully controlled. The building is air-conditioned in summer and heated in winter. The air-conditioning and heating system are so important to the life of the painting that the Gallery has two of each system. If one should fail, the extra one can take over.

Light is another enemy of paintings. Ultraviolet rays (紫外線) in light cause paintings to fade (褪色).  Long ago, paintings often hung in dark churches and palaces. A coat of varnish (清漆) was a protection from the weak light. But when museums took over the care of many paintings, they were often hung in brighter light than before. Soon they were in danger of fading. The damaging effects of light were increased when the museums removed the varnish coating, yellowed with age.

To protect its paintings, the National Gallery put a special kind of glass in its skylights. This glass allows visible lights to enter the building but it keeps out harmful ultraviolet rays. The Gallery has also developed new and better varnishes which help to keep paintings from fading. Thanks to these new precautions, many of the world's greatest paintings are being well protected for future generations to enjoy.

1.The text mainly tells us about ______.

A．the guard force in the National Gallery

B．protecting great paintings from nature

C．priceless paintings of past times

D．the air-conditioning and heating systems in the National Gallery

2.The underlined word "precautions" in Paragraph 4 is closest in meaning to ______.  

A．decorations

B．problems

C．suggestions

D．a(chǎn)pplications

3.From the text we can infer that_______.

A．great artists painted in dark churches and palaces

B．you can touch these paintings while you are in the National Gallery

C．the care of the world's greatest paintings is both a big responsibility and a great challenge

D．the guard force in the Gallery has not done a good job

 

【答案】

1.B

2.D

3.C 

【解析】

試題分析：這篇文章講的是如何保護(hù)名畫不受自然的侵害。博物館采用了一些新的方法保護(hù)這些名畫。

1.從第一段的句子：but protecting the paintings from nature is a greater problem.可知這篇文章講的是如何保護(hù)名畫不受自然的侵害。選B。

2.猜詞題：前面講的是應(yīng)用一些新的方法保護(hù)這些名畫。選D

3.推理題;從第三段的句子：But when museums took over the care of many paintings, they were often hung in brighter light than before. Soon they were in danger of fading. The damaging effects of light were increased when the museums removed the varnish coating, yellowed with age.可知這些名畫的保護(hù)既是責(zé)任也是挑戰(zhàn)。選C

考點(diǎn)：考查文化類短文

點(diǎn)評(píng)：本文要求考生讀懂文章中的每個(gè)句子的意思還要推理它們之間的關(guān)系，理解文章的言外之意，從而揭示文章的深層涵義。任何一篇文章都有其特定的寫作目的，讀者應(yīng)當(dāng)知道如何去做或按照某種方式傳遞思考問題。推理判斷題的答案不可能在文章中直接找到，因此推理時(shí)我們務(wù)必要忠于原文，在文章中尋找并確定可推論的依據(jù)。

 

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