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A B 7.What is the researchers’ concern over the increase of birds’ song output? A.The environment might be polluted. B.The birds’ health might be damaged. C.The industry cost might be increased. D.The people’s hearing might be affected. 解析:推理判断题。 根据第四段最后一句话“...by increasing their song output,there might be some costs of energy.”可以推断,这些鸟的健康可能会受损害,所以B项正确。 答案:B A B 8.What does the underlined word “nocturnal” in Paragraph 5 mean? A.Active at night. B.Inactive at night. C.Active during the day. D.Inactive during the day. 解析:词义猜测题。分析“And it is not just robins that are being kept awake by artificial light. Blackbirds and seagulls are also being more nocturnal.”可以判断,画线单词和awake属于含义相近的词,都表示光污染也会使它们清醒或者活跃。nocturnal意为“夜间活动的”,故A项正确。 答案:A A B 9.Why do some birds thrive in noisy environments? A.Because there are fewer dangers. B.Because there is more food to eat. C.Because there is less light pollution. D.Because there are more places to take shelter. 解析:推理判断题。根据最后一段的“It is thought that they are capitalising on their predators(天敌) fleeing to quieter areas.”可以判断因为天敌去了更安静的地区,所以它们的生存可能性更大了。故A项正确。 答案:A 专题五 生态环保类 【典例示范】 A B A (2015浙江卷,C篇) If humans were truly at home under the light of the moon and stars,we would go in darkness happily,the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet.Instead,we are diurnal creatures,with eyes adapted to living in the sun’s light.This is a basic evolutionary fact,even though most of us don’t think of ourselves as diurnal beings.Yet it’s the only way to explain what we’ve done to the night:We’ve engineered it to receive us by filling it with light. A B The benefits of this kind of engineering come with consequences — called light pollution — whose effects scientists are only now beginning to study.Light pollution is largely the result of bad lighting design,which allows artificial light to shine outward and upward into the sky.Ill-designed lighting washes out the darkness of night and completely changes the light levels — and light rhythms — to which many forms of life,including ourselves,have adapted.Wherever human light spills into the natural world,some aspect of life is affected. In most cities the sky looks as though it has been emptied of stars,leaving behind a vacant haze(霾) that mirrors our fear of the dark.We’ve grown so used to this orange haze that the original glory of an unlit night — dark enough for the planet Venus to throw shadows on Earth — is wholly beyond our experience,beyond memory almost. A B We’ve lit up the night as if it were an unoccupied country,when nothing could be further from the truth.Among mammals alone,the number of nocturnal species is astonishing.Light is a powerful biological force,and on many species it acts as a magnet(磁铁).The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms.Migrating at night,birds tend to collide with brightly lit tall buildings. Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times brighter than normal,throwing nearly every aspect of their behavior out of joint,including their nighttime breeding choruses.Humans are no less trapped by light pollution than the frogs.Like most other creatures,we do need darkness.Darkness is as essential to our biological welfare,to our internal clockwork,as light itself. A B Living in a glare of our own making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night.In a very real sense,light pollution causes us to lose sight of our true place in the universe,to forget the scale of our being,which is best measured against the dimensions of a deep night with the Milky Way — the edge of our galaxy — arching overhead. 【语篇导读】本文为议论文。作者首先说明人类习惯于生活在日光下,所以在夜晚打开各种灯;接下来,作者引出了光污染这个话题;随后,作者阐述了黑暗的重要性;最后,作者建议人类反思自己在宇宙中的位置。 A B 1.According to the passage,human beings . A.prefer to live in the darkness B.are used to living in the day light C.were curious about the midnight world D.had to stay at home with the light of the moon 解析:推理判断题。根据第一段第二句内容可以推断出,我们人类习惯于生活在日光下,不习惯夜晚的黑暗。 答案:B A B 2.What does “it”(Paragraph 1) most probably refer to? A.The night.B.The moon. C.The sky. | 
