首页
登录
职称英语
Last summer, the missing white-letter hairstreak butterfly was spotted in Sc
Last summer, the missing white-letter hairstreak butterfly was spotted in Sc
游客
2023-08-04
30
管理
问题
Last summer, the missing white-letter hairstreak butterfly was spotted in Scotland for the first time in 133 years. Conservationists wondered if the creature had established a breeding colony in the country—and a hew discovery suggests there is good reason to be optimistic. As Russell Jackson reports for the Scotsman, volunteer naturalists recently found a cluster of tiny white-letter hairstreak eggs on an elm tree in Lennel, a small village near the country of Berwickshire.
Volunteers with the UK’s Butterfly Conservation have been carefully tracking white-letter hairstreak migrations for more than ten years. The butterfly, which boasts a distinctive "W" pattern on the underside of its wings, is native to the U.K. and was once widespread in England and Wales. But white-letter hairstreak numbers have declined drastically in recent decades,
largely due to an outbreak of Dutch elm disease, an illness that took hold in the 1960s. The disease has killed millions of British elm trees, which is the food source for white-letter hairstreak caterpillars (蝴蝶或蛾的幼虫).
Recently, there have been signs that the butterfly’s populations are recovering. The Butterfly Conservation team has observed the white-letter hairstreak gradually spreading northwards, possibly due to warming climates. But the white-letter hairstreak is still a very rare sight in Scotland, and the volunteers who found the cluster of eggs—Ken Haydock and Jill Mills—were thrilled by the discovery.
"It was a lovely sunny morning and we were searching the elm trees by the River Tweed at Lennel when Jill called me over," Haydock says in a Butterfly Conservation statement. "I could see by the look on her face that she had found something. We were both smiling with disbelief and delight when we realized what Jill had found and within seconds I was fumbling in my pack for the camera—my hands were shaking!"
That Haydock and Mills managed to spot the eggs is quite remarkable; according to Vittoria Traverso of Atlas Obscura, white-letter hairstreak eggs are smaller than a grain of salt. The volunteers were also excited to discover an old, hatched eggshell amid the cluster of new eggs. According to the Butterfly Conservation, this suggests that the white letter hairstreak could have been breeding in the area since at least 2016.
Paul Kirkland, the director of the Butterfly Conservation’s Scotland chapter, says in the statement that conservationists will "need to have a few more years of confirmed sightings" before they can classify the white-letter hairstreak as a resident species of Scotland. "If this happens, it would take the total number of butterflies found in Scotland to 34," he says, "which really would be something to celebrate." [br] What was said about the white-letter hairstreak butterfly?
选项
A、It has been native to the U.S. and spread to England.
B、Its population is decreasing due to global warming.
C、Signs have shown that its number is rising again now.
D、People can see them every now and then in Scotland.
答案
C
解析
根据题干中的信息词white—letter hairstreak butterfly和题文同序的原则,可以把答题线索定位到第三段。第三段提到,最近,有迹象表明这种蝴蝶的数量正在恢复。C项Signs have shown that its number is rising again now是原文Recently,there have been signs that the butterfly’s populations are recovering的同义转述,故本题应选C。白毛小灰蝶原产于英国,而不是美国,故排除A项;白毛小灰蝶的数量在恢复,而不是下降,故排除B;白毛小灰蝶在苏格兰依然罕见,故排除D。
转载请注明原文地址:https://tihaiku.com/zcyy/2897611.html
相关试题推荐
颐和园(theSummerPalace)始建于清朝,是中国规模最大、保存最完好的皇家园林(imperialgarden)之一。Originallycon
[originaltext]LastsummerIwentthroughatrainingprogramandbecameali
[originaltext]LastsummerIwentthroughatrainingprogramandbecameali
[originaltext]LastsummerIwentthroughatrainingprogramandbecameali
[originaltext]LastsummerIwentthroughatrainingprogramandbecameali
[originaltext]W:Jason,actuallyI’mgoingtoEnglandthissummer.M:Really?T
[originaltext]W:Jason,actuallyI’mgoingtoEnglandthissummer.M:Really?T
[originaltext]RemembertheRioOlympics?Fromthesummer?Well,itturnsou
[originaltext]RemembertheRioOlympics?Fromthesummer?Well,itturnsou
[originaltext][9]LastsummerIwentthroughatrainingprogramandbecame
随机试题
Whenbittermanagerialconflictsplagueasmallcompany,conflictsthatinthep
Psychologistsoriginallyusedthetermshort-termmemorytorefertotheab
随着数字技术的发展,音频、视频的播放形式出现了革命性转变。人们很快接受了一些新形
一家公司是产品分销商,每季度采购一次产品,并将采购到的产品储存起来以满足季度内对
省内联网收费总体框架一般由三级组成,其中不包括()。A:省级管理中心 B:区
下列关于存货的说法正确的是()。A.按照规定会计准则,存货核算可以采用先进先出法
依据评价指标的实际对照相应的标准值,运用功效系数法计算各项指标实际得分的绩效评价
《煮酒论英雄》是《三国演义》中的一个片段,故事中涉及两个英雄人物,一个长歌当啸、
下列费用项目中,应计入进口材料运杂费中的是()。A.国际运费 B.国际运
以下有关工程竣工验收的表述中,正确的是() A.发包人应在收到承包人的竣工
最新回复
(
0
)