首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The now extinct passenger pigeon has the dubious honor of being the last species anyone ever expected to disappear. At one point
The now extinct passenger pigeon has the dubious honor of being the last species anyone ever expected to disappear. At one point
admin
2022-10-29
17
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
【C1】
选项
答案
L
解析
空格前为形容词Rough,空格后为介词短语of their population,由此可知,空格处应填入一个被形容词Rough修饰的名词。由本句中的went as high as five billion可知,这里在讲述旅鸽的数量,而由于数量众多(高达50亿) ,因此这一数量只能是估算出来的数量,故estimates符合语境。
转载请注明原文地址:https://jikaoti.com/ti/GxfFFFFM
0
大学英语六级
相关试题推荐
A、Assessingyoursituationfrequently.B、Lookingforthingscontrollable.C、Changingyourownlifestyle.D、Takingmorechallenge
A、SomeofthemarelivinginthewildinHawaii.B、Noneofthemliveinthewild.C、Theyarethemostvaluablespeciesofcrows.
A、Analyzethereasonsforthefailure.B、Trythesamethingonemoretime.C、Lookforsomeotheropportunities.D、Thinkaboutho
A、Theyprepareforfinals.B、Theytakecareofstraydogs.C、Theyhangoutwithdogs.D、Theyhavefunwithfriends.C据主讲人介绍,活动中学
A、Theyprepareforfinals.B、Theytakecareofstraydogs.C、Theyhangoutwithdogs.D、Theyhavefunwithfriends.C据主讲人介绍,活动中学
A、Itmakescontactseasierandquicker.B、Itboomsbusinessandeconomy.C、Itimprovesinterpersonalrelationship.D、Itsavespe
A、Costly.B、Time-consuming.C、Genuine.D、Safe.B
A、Developingvariousapplications.B、Expandingforeignmarketsforhismaterials.C、Producingleisureshoeswithdifferentmater
A、Itwillputtheproductivefarmlandindanger.B、Itmayimproveconditionsforsomeinvasivespecies.C、Itisawarningsignf
A、Theytastemorelikeseafood.B、Theycausediseasesinlabanimals.C、Theyaretheresultofnaturalselection.D、Theyfirst
随机试题
女性,47岁,G3P1。近2年来月经周期紊乱,经量时多时少,最近闭经3个月后阴道淋漓出血半月余来医院就诊。该患者的最佳处理方案是
A大量淋巴细胞及单核细胞B大量嗜酸性粒细胞C白细胞增多,以单核细胞为主D大量白细胞伴有大量鳞状上皮细胞E肾小管上皮细胞肾移植后的排异反应尿中可出现的细胞是
治疗皮肤黏膜淋巴结综合征卫气同病证应()
建设投资估算中,综合指标投资估算法主要是要做好( )。
当事人不服地方人民法院一审裁定的,应当()。
与注意稳定性这一注意品质有关系的注意现象包括
Communicationisthesendingofinformationornewsfromonepersontoanother.Ifhumanbeingscouldnotcommunicatewithonea
航母
设y’=arctan(x一1)2,y(0)=0,求∫01y(x)dx.
JackLondonwasafamousAmericanwriter(作家).BewasbornonJanuary12.1876.inSanFrancisco(旧金山).California.Hisfamilyw
最新回复
(
0
)