首页
登录
职称英语
The now extinct passenger pigeon has the dubious honor of being the last spe
The now extinct passenger pigeon has the dubious honor of being the last spe
游客
2023-08-04
18
管理
问题
The now extinct passenger pigeon has the dubious honor of being the last species anyone ever expected to disappear. At one point, there were more passenger pigeons than any other species of bird. Rough【C1】________of their population went as high as five billion and they accounted for around 40 percent of the total indigenous bird population of North America in the early 19th century.
Despite their huge population, passenger pigeons were【C2】________to human intrusion into their nesting territory. Their nests were shabby things and two weeks after the eggs【C3】________. the parent pigeons would abandon their offspring, leaving them to take care of themselves. People discovered that these baby pigeons were really tasty, and the adult birds were also quite【C4】________. First the Native Americans and then the transplanted Europeans came to consider the birds a great【C5】________.
By the 1850s, commercial trapping of passenger pigeons was proceeding at an【C6】________pace. Hundreds of thousands of the birds were being harvested every day to be made into popular pigeon pies. In addition, large【C7】________of the pigeons’ nesting territory were being cleared away for planting crops and creating pasture land. As numerous as the passenger pigeons were, they were not an【C8】________resource. By the 1880s, it was noticed that the bird population had become seriously【C9】________. The last passenger pigeons killed in the wild were shot in 1899.
Eventually those billions and billions of birds shrank to a single remaining【C10】________. a passenger pigeon named Martha, who died on September 1, 1914, in captivity at the Cincinnati Zoo. In addition to being the end of an era, it was also the first time humans were able to exactly time the extinction of a species.
A) vulnerable F) refuge K) excerpts
B) unprecedented G) plazas L) estimates
C) tracts H) infinite M) edible
D) specimen I) hatched N) depleted
E) robust J) expired O) delicacy [br] 【C6】
选项
答案
B
解析
分析句子结构可知,此处为介词短语at an…pace,意为“以……的速度”,由此可知,空格处应填入一个形容词或分词,充当pace的定语。由下一句“每天有几十万只旅鸽被捕获,做成受欢迎的鸽子馅饼”可知,本句是说,对旅鸽的商业诱捕“以前所未有的速度”进行,故unprecedented符合语境。
转载请注明原文地址:https://tihaiku.com/zcyy/2895839.html
相关试题推荐
A、Whyspeciesdon’tavoidextinctionbyadapting.B、Whyhumanswon’tbecomeexti
Robabankandyouriskalongstretchinjail.Runabankwhosedubiousbeh
Robabankandyouriskalongstretchinjail.Runabankwhosedubiousbeh
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
Thenowextinctpassengerpigeonhasthedubioushonorofbeingthelastspe
随机试题
NowomancanbetoorichortoothinThissayingoftenattributedtothelat
与左心功能不全的表现不符的是()。A.中心静脉压>1.8kPa B.肺毛细
施工现场有多台塔式起重机作业时,()应当应当组织制定并实施防止塔式起重机相互碰
临床常用的超声探头频率是A.2.5~3.0MHz B.3.5MH C.5.0
患儿,男,6月,反复发热入院,最高体温38.3℃,无咳嗽、咳痰,尿频,排尿哭闹,
多节串联使用的金属氧化物避雷器,如果其中一节进水受潮,热像图的特征是()(
桑代克提出的学习律有A.准备律 B.练习律 C.效果律 D.频因律
在人的身心发展中,有的方面在较早的年龄阶段就已达到较高的发展水平,有的则要到较晚
激素的第二信使( )。A.ATP B.NAD+ C.cAMP D.cGM
某化工建设项目设计年生产能力5万吨,预计年固定总成本为400万元,产品销售价格8
最新回复
(
0
)