首页
登录
职称英语
Where the Galapagos Islands lie today, there was once an unbroken expanse of
Where the Galapagos Islands lie today, there was once an unbroken expanse of
游客
2025-03-24
32
管理
问题
Where the Galapagos Islands lie today, there was once an unbroken expanse of Pacific. Then the sea began to seethe and simmer, the earth’s crust was pierced, and matter gushed forth continuously. Lava and scoriae (loose, cinderlike lava) piled up until one day spewing volcanoes raised peaks above the brawling sea.
Many thousands of years passed before life could settle upon the cooled land. Then wind and waves brought the first hardy seed of primitive plants. After these came others, then insects, lizards , and birds. The chance that any animal would survive the trip from the South American continent more than six hundred miles away was slight; only a few hardy species came through alive. This is why there are many gaps in the animal life of the islands.
Those that did reach the out-of-the-way islands developed over the ages into a number of quite peculiar forms. Because conditions in the Galapagos differed from those in their original homes, the animals had to change or perish. Only in the Galapagos are there seaweed-eating marine lizards, giant tortoises, and flightless cormorants. In fact, most of the species found in the Galapagos Islands are endemics: they exist only in the archipelago. [br] It is implied in the passage that______.
选项
A、a great evolutionary process took place in the Galapagos Islands
B、only species that are endemic survive in the Galapagos Islands today
C、conditions of life in the Galapagos Islands differed from those in the animals’ original homes
D、the plant life of the Galapagos Islands is endemic
答案
A
解析
本题为推断题。文中第三段第二句说:“因为该群岛的生存条件不同于这些动物原来地方的生存条件,为此这些动物不得不改变自己的生活习性,否则就会灭绝。”由此我们可以推断出群岛上的动物遵循了适者生存的法则才存活下来。所以A为正确答案。
转载请注明原文地址:http://tihaiku.com/zcyy/4011034.html
相关试题推荐
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
Theremarkable______oflifeontheGalopagosIslandsinspiredCharlesDarwinto
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
随机试题
InMicrosoft’slatestattempttoreachouttobloggers,thecompanyrecently
Whenwewantto(56)otherpeoplewhatwethink,wecandoitnotonlywith
Whenyoungpeoplegettheirrealjobs,theymayfacealotofnew,【B1】______
以下属于法人验收的有( )。A.截流验收 B.分部工程验收 C.单位工程验
急性呼吸性碱中毒患者可表现为A.感觉异常 B.四肢抽搐 C.脑血管痉挛 D
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
基金销售的()反映了从投资人的需要出发向投资人销售合适的产品。A:专业性B:服
财政部代理发行地方政府债券,关于投标限定,下列说法中错误的是()。A:每一承销团
水电工程设计概算项目划分为枢纽工程、建设征地和移民安置、()三部分。A.独立费
35周男婴,出生体重1.5kg,出生后3天体温不升,需要暖箱,该暖箱温度应是A:
最新回复
(
0
)