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
4
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] Life was slow to settle upon the Galapagos Islands because the______.
选项
A、land cooled slowly
B、islands were far from other islands
C、islands were very small
D、both A and B
答案
D
解析
文中第二段第一句说:“数千年过后生物能够在冷却的群岛上安定下来。”第二段第四句说:“南美大陆距该群岛有600多英里远,任何动物远涉重洋后,能够存活下来的机会都很小,只有为数不多的顽强的物种存活了下来。”由此可见,选项A和B都符合文章内容,所以正确答案应为D。
转载请注明原文地址:https://tihaiku.com/zcyy/4011032.html
相关试题推荐
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
Theremarkable______oflifeontheGalopagosIslandsinspiredCharlesDarwinto
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseof
随机试题
(1)OscarWildesaidthatworkistherefugeofpeoplewhohavenothingbette
Withitsplantodevelopsevenandahalfacresofshoreland,Clevelandisbut
确定基桩承载力的检测方法有()A.小应变动测法 B.声测法 C.静载法 D
在家庭财务保障规划建议中,理财师在为客户进行风险管理效果评估时,其内容不包括(
下列关于投标保证金的表述中,正确的是()。A、投标保证金一般不得低于投标报价的2
药事管理是()A.国家对药品的监督管理 B.国家对药品生产经营的监督管
体现垂直迁移的具体事例是() A、汉语拼音的学习影响英语字母的发音 B、
A.对公民处50元以下罚款 B.对公民处500元罚款 C.没收非法所得 D
会计软件运行之前,企业应该根据国家统一的会计准则制度和()来选择相应的运行控制参
关于化学品火灾扑救的表述中,正确的是()。A.扑救爆炸物品火灾时,应立即采用沙土
最新回复
(
0
)