剑桥雅思19Test4Passage1阅读答案解析 The impact of climate change on butterflies in Britain 气候变化对蝴蝶的影响
剑桥雅思19阅读第四套题目第一篇文章的13道题由6道TRUE/FALSE/NOT GIVEN判断和7道总结填空组成。虽然原文有不少不太认识的学术名词，但几乎所有的题目都有明确的定位点，而且同义替换也不算复杂，因此整体难度不大。下面是具体每道题目的答案解析。
剑桥雅思19Test4Passage1阅读原文翻译 The impact of climate change on butterflies in Britain 气候变化对蝴蝶的影响
剑桥雅思19Test4Passage1阅读答案解析
第1题答案：FALSE
对应原文：第1段：populations of around two thirds of butterfly species have declined in Britain over the past 40 years
答案解析：文章开头提到，“在过去的40年里，英国约三分之二的蝴蝶物种数量已经出现了下降趋势”。题干中40年前英国蝴蝶数量比现在少的说法与此冲突，因此判断答案为FALSE。
第2题答案：TRUE
对应原文：第1段：Butterfly eggs develop into caterpillars and these insects … in turn act as prey for birds as well as bats and other small mammals.
答案解析：根据caterpillars定位到第1段的后半部分，原文提到，“蝴蝶所变的毛毛虫是鸟类、蝙蝠以及其他小型哺乳动物的重要食物来源”。题干中are eaten对应prey，a number of different predators对应birds as well as bats and other small mammals，即所有信息点在原文中都能找到依据，由此判断答案为TRUE。
第3题答案：FALSE
对应原文：第2段：Scientists refer to the timing of such lifecycle events as ‘phenology’
答案解析：根据Phenology定位到第2段的这句话，原文提到，“科学家将这种生命周期事件的时间安排称为物候”。也就是说phenology指的是特定的时间而非改变地点的能力，由此判断答案为FALSE。
第4题答案：NOT GIVEN
对应原文：第3段：In Britain, as the average spring temperature has increased by roughly 0.5 °C over the past 20 years, species have advanced by between three days and a week on average, to keep in line with cooler temperatures
答案解析：根据spring定位到第3段。原文提到，春季温度的上升让部分种类的蝴蝶的生命周期提前了三天到一周。至于其寿命（lifespan）是否减少则找不到对应依据，因此判断答案为NOT GIVEN。
第5题答案：FALSE
对应原文：第3段：Is this a sign that butterflies are well equipped to cope with climate change, and readily adjust to new temperatures? Or are these populations under stress, being dragged along unwillingly by unnaturally fast changes? The answer is still unknown
答案解析：顺着上一题往下，原文提到，“这是不是说明蝴蝶已经具备了应对气候变化的能力，能够灵活适应新的温度？还是说，它们其实正处在压力之下，被迫跟上气候异常加速的变化节奏？这一问题仍然没有确切答案”。题干中a clear reason的说法与the answer is still unknown相冲突，因此判断答案为FALSE。
第6题答案：TRUE
对应原文：第4段：the researchers pulled together data from millions of records that had been submitted by butterfly enthusiasts – people who spend their free time observing the activities of different species
答案解析：根据data定位到第4段的开头，原文提到，“研究人员首先汇总了来自蝴蝶爱好者的数百万条观察记录——这些人在闲暇时间专注于观察不同蝴蝶物种的活动。”题干中amateur butterfly watchers对应闲暇时间观察蝴蝶活动的人。由此判断答案为TRUE。
第7题答案：colonies
对应原文：第6段：the dainty Small Blue, whose colonies are up to a hundred strong.
答案解析：根据Small Blue定位到第6段的后半部分，空前词large对应a hundred strong，由此确定答案为colonies。
第8题答案：spring
对应原文：第6段：some develop into butterflies early in spring
答案解析：顺着上一题往下，空前词start of与early同义替换，由此确定答案为spring。
第9题答案：endangered
对应原文：第7段：The beautiful High Brown Fritillary, often described as Britain’s most endangered butterfly, is in this group
答案解析：根据High Brown Fritillary定位第7段，题干中more … than other species与most同义替换，由此判断答案为endangered。
第10题答案：habitat(s)
对应原文：第7段：It is found only in coppiced woodland and limestone pavement habitats.
答案解析：顺着上一题往下，题干中a limited range of与only同义替换，由于要求只能填一个单词，因此抛弃前面的具体举例，锁定habitats。
第11题答案：Europe
对应原文：第8段：Many of Britain’s single-generation species show the capacity, in continental Europe, to add a second generation in years that are sufficiently warm. Therefore, as the climate continues to warm, species like the Silver-studded Blue might be able to switch to multiple generations in the UK as well
答案解析：根据Silver-studded Blue定位到第8段。原文提到两个地点：Europe和UK。仔细察看题干之后发现存在already这一限定，由此锁定Europe，排除UK（未来可能变成一年多代）。
第12题答案：southern
对应原文：第9段：The White Admiral of southern England, a much sought-after butterfly
答案解析：根据White Admiral定位到第9段。从题干可以推测出空上应该填的是英格兰的某个区域，由此锁定southern为正确答案。
第13题答案：diet
对应原文：第9段：This may be because the caterpillar exists solely on a diet of a plant called honeysuckle. But it is also likely to be due to climate change.
答案解析：顺着上一题往下，根据climate change定位到文章末尾。由题干并列关系锁定a diet of plant called honeysuckle。这些词中只有diet填上去语义合适，因此确定它为正确答案。
