2012年職稱英語《理工類B級》補全短文模擬題(4)

　　補全短文(第46~50題,每題2分,共10分)

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　　Ruining the Ruins

　　Acid rain (酸雨) is how a familiar problem in the industrialized countries in Europe. Harmful gases are produced by power stations and cars. They dissolve in rainwater and this makes acid rain, which damages trees, rivers and streams.

　　Acid rain is also capable of dissolving some rocks, and buildings made of soft rock, such as limestone (石灰石), are particularly badly affected. The acid rain attacks the rock, and so carvings and statues are eroded (受腐蝕) more quickly.

　　(46)According to a report in the New Scientist, acid rain is being blamed for the rapid decay of ancient ruins in Mexico. The old limestone buildings in places like Chichen Itza, Tulum and Palenque are wearing away very quickly indeed. These sites are the remains of the buildings built by the Mayas between 250 BC and AD 900, and the spectacular ruins of Mayan civilization are visited by thousands of tourists every year.

　　But those ruins are in danger of being seriously damaged by pollution. At many sites the stone has been covered with a layer of black substance. (47)

　　Scientists estimate that about one millimeter of stone is worn away every twelve years. (48) The acid rain is said to be caused by pollution from oil wells in the Gulf of Mexico. Car exhaust gases are also a problem. Local volcanic eruptions make the problem even worse. Nevertheless, with enough money and effort, researchers say that many of the problems could be solved and the rate of erosion reduced. (49)

　　Mexico's current lack of funds is also partly due to oil. The country has rich oil fields and a few years ago, when oil was expensive, Mexico Was selling large quantities of oil to the USA and earning a lot of money. (50) However, the price of oil then dropped, and Mexico has been left owing enormous sums of money and with not enough income from oil sales to pay back the loans. So unless the price of oil rises, it is unlikely that Mexico will be able to afford to clean up the pollution and save its Mayan ruins from destruction.

　　A At others the painted surfaces inside temples are lifting and flaking off (剝落) and the stone is being eaten away.

　　B That is enough to have caused some of the ancient carvings to become seriously damaged already.

　　C These measures would reduce the pollution, but would not stop it completely.

　　D The government was therefore able to borrow huge sums of money from banks around the world, thinking they would have no problem repaying their debts.

　　E The problem, however, is not just a European one.

　　F However, the Mexican government does not have enough money to do the work, and needs to spend what money it has on the Mexican people.

　　46. E 47. A 48. B 49. F 50. D

　　46. E The problem, however, is not just a European one.后文中列舉了幾個有著同樣情況的國家。這句恰好起著引起下文的作用。

　　47. A At others the painted surfaces inside temples are lifting and flaking off (剝落) and the stone is being eaten away. 句中At others與前文的At many sites相呼應(yīng)。構(gòu)成一個完整的意思段落。

　　48. B That is enough to have caused some of the ancient carvings to become seriously damaged already.前文提到了12年的時間可以磨損掉一個石頭的1毫米。答案馬上接著敘述說這么長的時間足足可以破壞一個古代的雕刻物。意思明白準(zhǔn)確。

　　49. F However, the Mexican government does not have enough money to do the work, and needs to spend what money it has on the Mexican people.前文提到完成這項工作需要很多的錢,答案轉(zhuǎn)折說到了墨西哥沒有這么多的錢去做。兩句之間有隱含的邏輯關(guān)系。

　　50. D The government was therefore able to borrow huge sums of money from banks around the world, thinking they would have no problem repaying their debts.前文中說到,墨西哥把大量的石油賣給美國并獲得很多的資金,therefore 引出了答案:墨西哥獲得了大量的貸款