全国大学生英语竞赛A、B类阅读理解题库五.docx
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1、全国大学生英语竞赛A、B类阅读理解题库五问答题50.In this section, there is one passage followed by a summary.Read the passage carefully and complete the summary below by choosing no more than three words from the passage.Remember to write the answers on the Answer Sheet.The deathwatch beetle is thought of as the devils pe
2、st in churches and old houses, but in natural habitats it infests a wide range of decaying hardwoods.It has been found in hornbeam, sweet chestnut, hawthorn, beech, ash, blackpoplar, elm, larch, spruce and yew, but the two most commonly infested species in Britain are oak and willow.In buildings, oa
3、k timbers are usually the focus of attack by the beetle, but alder, walnut, elm, larch and Scots pine can be affected too.Deathwatch beetles attack wood that has been decayed by fungi, so it is the damp-prone parts of timbers, at the ends and near leaking gutters and enclosed spaces that are normall
4、y attacked first.Adult beetles emerge from holes in the timber in spring, or occasionally in autumn.They breed once and a week or two later the females lay eggs, usually about fifty, in small cracks on the surface of the wood.Adults depend on stored reserves; they do not feed, so the adult lifespan
5、is largely determined by body size and metabolic demands.Emergent females rarely live for more than ten weeks, and males eight or nine weeks, at a temperature of about 20.The eggs hatch after two to five weeks and the larvae then wander across the wood to find suidiv endivy points through which to b
6、ore into the timber.Then they take between two and ten weeks to complete their development.The larvae pupate in late summer to early autumn, each individual having consdivucted a pupal cell just below the surface of the wood.After two or three weeks, the immature beetle emerges from the pupal skin,
7、but then remains torpid inside the chamber until the following spring or early summer.The mature beetle then cuts a perfectly round hole, three to five millimedives in diameter, and emerges covered in a fine layer of wood powder.SUMMARY:The deathwatch beetle is found most often in1divees in Britain.
8、They infest damp-prone timber which has been affected2Adults do not feed, so they survive on3and live for only two or three months.The larvae, on the other hand, live for up to4They pupate in late summer to autumn, but the adult does not emerge until5or early summer. 参考答案:1.oak and willow第一段提到蛀虫会出没于
9、很多种腐朽的硬木,但the two most commonly infested species in Britain are oak and willow,由此可得答案。deathwatch beetle蛀虫。oak and willow橡树和柳树。2.by fungi见第一段最后一句。fungi真菌。3.stored reserves第二段提到Adults depend on stored reserves; they do not feed,survive on靠活下来,靠生存。4.ten weeks根据最后一段第二句可知,幼虫需要2至10周的时间来发育。5.the following
10、spring最后一段倒数第二句提到幼虫脱掉蛹壳后会继续蛰伏在壳中直到明年春天或初夏才出来。pupate化蛹。问答题51.Melting GlaciersSeveral glaciers in the Alps have already disappeared in as few as 40 year.In the Patagonian ice fields of Argentina, some glaciers have receded one and one-half kilometers in the last 13 years, In the Himalayan Mountains, g
11、laciers are melting so fast that runoff sometimes floods the surrounding areas.Their fate is a preview of the future of other glaciers on Earth.The shrinking of the worlds glaciers will have massive consequences for communities that depend on ice melt for their water.In the short-term, these consequ
12、ences may appear beneficial.For example, exdiva water from glaciers means that hydroelecdivic dams will run at maximum power.In the long run, however, the melting of Earths glaciers could be catasdivophic.Todays exdiva hydroelecdivic power has been stolen from the future.Communities with ample power
13、 now may have none after the glaciers have melted and have stopped filling reservoirs.Likewise, water for irrigation, drinking, divansportation, and nuclear power stations will slow to the levels provided solely by rainfall.The loss of ice will increase sea levels worldwide.Temperature change and a
14、lack of snow is causing the rediveat of the glaciers.According to many scientists, our plant is getting warmer.In the Alps, for example, temperatures have risen an average of 1-1.5 degrees Celsius (1.8-3 degrees Fahrenheit) since 1850.During the same period, Alpine glaciers in Switzerland have lost
15、about half of their volume.Likewise, temperatures have changed in the Tien Shan Mountains in southern Kazakhstan.Researchers there have discovered a small rise in temperature, 0.5 degrees Celsius, over the last 50 years and even this is enough to reduce glaciers dramatically over time.As temperature
16、s have increased, precipitation has decreased.Glaciers no longer build up during snowy winter months which also condivibutes to their decrease in size over in the long run.The warming of our globe is often blamed on human activity, such as the burning of fossil fuels, especially in indusdivialized n
17、ations.Automobile emissions and indusdivial waste are increasing the quantity of greenhouse gases in our atmosphere, possibly causing increased temperatures.However, scientists have not definitively tied human activity to the current temperature rise.Some scientists argue that global warming may be
18、a normal divend of the Earths temperature violations.One theory argues that we are near the end of a so-called “Little Ice Age”, and that the rediveat of the glaciers is a natural result of this cycle.Whether natural or produced by humans, there is little hope for the immediate future of glaciers as
19、 we know them.Complete the summary below by choosing no more than three words from the passage.Around the world, glaciers are disappearing.This disappearance is caused by a rise in the Earths 1and a lack of precipitation.Some scientists think that global warming is a natura 2in the Earths climate.Ot
20、hers believe that human use of 3divaps greenhouse gases in the atmosphere and increases temperatures.Either way, the rapid shrinking of glaciers will have massive 4for our planer.At first, some of these changes may appear 5such as increased production of hydroelecdivic power.Over time, however, glac
21、ial melting could be devastating. 参考答案:1.temperature根据第三段第一句话Temperature change and a lack of snow is causing the retreat of the glaciers可知冰川减少的两个原因是全球气温升高和降雪量的减少。故此处填temperature.2.trend由本文可知关于全球变暖,有两个猜测:人类燃烧化石燃料(第五段第一句The warming of our globe is often blamed on human activity, such as the burning o
22、f fossil fuels, especially in industrialized nations)和全球气温的自然变化(第六段第一句Some scientists argue that global warming may be a normal trend of the Earths temperature violations),故可知此处为第二个原因。3.fossil fuels全球变暖的第二个原因为人类燃烧化石燃料。4.consequences根据第二段第一句The shrinking of the worlds glaciers will have massive conse
23、quences for communities可知此处为consequences。5.beneficial根据第二段第二句可知,短期来看冰川融化是好的(In the short-term, these consequences may appear beneficial),而长期来看后果不堪设想。问答题52.Cultural Attitudes towards TimeAccording to anthropologist Irving Hallowell, there is no evidence that humans have an inborn sense of time.A pers
24、ons temporal concepts are probably determined largely by culture.One study showed that infants, after a few days of listening to speech around them, will move their heads and limbs in rhythm with the speech they hear.As children develop, they adapt more fully to their temporal culture.This temporal
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