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
Where the Galapagos Islands lie today, there was once an unbroken expanse of Pacific. Then the sea began to seethe and simmer, t
Where the Galapagos Islands lie today, there was once an unbroken expanse of Pacific. Then the sea began to seethe and simmer, t
admin
2012-07-17
35
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.
What is the passage mainly about?
选项
A、The history of the archipelago.
B、The birth of the Galapagos.
C、Conditions of life in the islands today.
D、The unique animal life of the Galapagos.
答案
D
解析
本题是一道要旨题。文中第一段介绍加拉帕戈斯群岛的由来,即是因太平洋底火山爆发而产生的岛屿;第二段说明了岛屿上生物的由来,即火山爆发数千年后从南美大陆远涉重洋而来;第三段说明了岛上动物的特殊性和地方性。由以上可以看出,本文重点讲的是加拉帕戈斯群岛上独特的动物。故选项D正确。
转载请注明原文地址:https://kaotiyun.com/show/joXO777K
0
在职攻硕英语联考
相关试题推荐
Atdusk,Mr.Hightowerwouldsitinhisoldarmchairinthebackyardandwistfullyloseinreminiscenceofhisyouthromances.
MostgraduateprogramsinAmericanuniversitiesproduceaproductforwhichthereisnomarket(candidatesforteachingposition
MostgraduateprogramsinAmericanuniversitiesproduceaproductforwhichthereisnomarket(candidatesforteachingposition
Thereisanimmenseandjustifiedprideinwhatourcollegeshavedone.Atthesametimethereisagrowinguneasinessaboutthe
Thereisanimmenseandjustifiedprideinwhatourcollegeshavedone.Atthesametimethereisagrowinguneasinessaboutthe
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseofPacific.Thentheseabegantoseetheandsimmer,t
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseofPacific.Thentheseabegantoseetheandsimmer,t
WheretheGalapagosIslandslietoday,therewasonceanunbrokenexpanseofPacific.Thentheseabegantoseetheandsimmer,t
随机试题
在“天、地、彼、此”中,“地”是指( )
蛋白质合成时下列何种物质能使多肽链从核蛋白体上释出来?
A.肾上腺素B.去甲肾上腺素C.乙酰胆碱D.5-羟色胺心迷走神经节前纤维末梢释放的递质是
关于等渗性脱水,不正确的是
甲乙两医院乳腺癌术后的5年生存率(%)由两院的生存率资料可认为
患者,52岁,咽中如有物阻,咯吐不出,吞咽不下,胸胁满闷月余。治宜选用( )。
关联交易主要包括()。
下列各项中,()属于培训后评估的内容。
材料2:一位教师为让小学一年级的学生掌握“动物”这个概念,设计了如下问题:师:为什么说鸡鸭猪都是动物?生:因为他们都会叫唤。师:对吗?蚯蚓不会叫唤,可是他也是动物啊!生:蚯蚓会爬。会爬,会走的都叫动物。师:鱼不会爬,
A、AskJohnstononemoretime.B、AskJohnstontoextendthedeadline.C、AskJohnstontoclarifythesubmissiondate.D、AskJohnst
最新回复
(
0
)