2014年職稱英語(yǔ)綜合類C級(jí)練習(xí)題:補(bǔ)全短文

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　　第5部分：補(bǔ)全短文。下面的短文有5處空白，短文后有6個(gè)句子，其中5個(gè)取自短文，請(qǐng)根據(jù)短文內(nèi)容將其分別放回原有位置，以恢復(fù)文章原貌。

　　Ants as a Barometer of Ecological Change

　　At picnics, ants are pests. But they have their uses. In industries such as mining, farming and forestry, they can help gauge the health of the environment by just crawling around and being antsy.

　　It has been recognized for decades that ants-which are highly sensitive to ecological change can provide a near-perfect barometer of the state of an ecosystem. Only certain species, for instance,will continue to thrive at a forest site that has been cleared of trees.46__________And still others will move in and take up residence.

　　By looking at which species populate a deforested area, scientists can determine how "stressed" the land is. 47__________Ants are used simply because they are so common and comprise so many species.

　　Where mine sites are being restored, for example, some ant species will recolonize the stripped land more quickly than others. 48__________Australian mining company Capricorn Coal Management has been successfully using ant surveys for years to determine the rate of recovery of land that it is replanting near its German Creek mine in Queensland.

　　Ant surveys also have been used with mine-site recovery projects in Africa and Brazil, where warm climates encourage dense and diverse ant populations. "We found it worked extremely well there," says Jonathan Majer, a professor of environmental biology. Yet the surveys are perfectly suited to climates throughout Asia, he says, because ants are so common throughout the region. As Majer puts it:"That's the great thing about ants. "

　　Ant surveys are so highly-regarded as ecological indicators that governments worldwide accept their results when assessing the environmental impact of mining and tree harvesting. 49 __________Why not? Because many companies can't afford the expense or the laboratory time needed to sift results for a comprehensive survey. The cost stems, also, from the scarcity of ant specialists,50__________

　　A. This allowed scientists to gauge the pace and progress of the ecological recovery.

　　B. Yet in other businesses, such as farming and property development, ant surveys aren't used widely.

　　C. Employing those people are expensive.

　　D. They do this by sorting the ants, counting their numbers and comparing the results with those of earlier surveys.

　　E. The evolution of ant species may have a strong impact on our ecosystem.

　　F. Others will die out for lack of food.

　　參考答案：

　　46.F【解析】句意：其它的(螞蟻種群)將會(huì)因食物缺乏而滅絕。

　　這一空前面的句子中有certain species，空后的句子中有still others，所以從這兩點(diǎn)可以判斷該空填“0ther….”;0ther指代的是“其他的螞蟻種群”。

　　47.D【解析】句意：他們通過把螞蟻分成幾類，計(jì)算它們的數(shù)量，比較之前的幾個(gè)調(diào)查結(jié)果(來做這件事)。

　　這一空前面一句說scientist can determine how“stressed”the land is.科學(xué)家可以判斷出……，通過閱讀六個(gè)選項(xiàng)可知，只有D項(xiàng)與這一句銜接比較緊密，完整的意思是“他們通過……來判斷土地的硬度?！彼訢項(xiàng)為最佳答案。

　　48.A【解析】句意：這使科學(xué)家們能夠估測(cè)出生態(tài)恢復(fù)的持續(xù)發(fā)展?fàn)顩r。

　　空前一句中的recolonize恰好與A項(xiàng)中的ecological recovery相對(duì)應(yīng)，并且選項(xiàng)A的句子是前面句子的后續(xù)句，所以A項(xiàng)為最佳答案。

　　49.B【解析】句意：然而，在其它商業(yè)領(lǐng)域中例如農(nóng)業(yè)和房地產(chǎn)開發(fā)行業(yè)，螞蟻分析法應(yīng)用的并不是很廣泛。

　　空前的句子中有ming，tree harvesting 等次，這些也是屬于bussiness中的。意思是說螞蟻分析法已經(jīng)被……等領(lǐng)域廣泛接受，但是在farming和property development 行業(yè)中的應(yīng)用還不廣泛。所以B項(xiàng)為最佳選項(xiàng)。

　　50.C【解析】句意：雇傭這些人的費(fèi)用是昂貴的。

　　空前的句子中的scarcity意思是“缺乏，不足”，因?yàn)樯伲?dāng)然就expensive(昂貴)了。并且C選項(xiàng)中的those指代就是前一句中的specialists。所以C項(xiàng)是最佳答案。