首页
登录
职称英语
Thousands of years ago, in the middle of an ocean, miles from the nearest is
Thousands of years ago, in the middle of an ocean, miles from the nearest is
游客
2025-03-13
34
管理
问题
Thousands of years ago, in the middle of an ocean, miles from the nearest island, an undersea volcano broke out. The hot liquid piled higher and higher and spread wider and wider. In this way, an island rose up in the sea.
As time went on, hot sun and cool rains made the rock split and break to pieces. Sea waves dashed against the rock. In this way, soil and sand came into being.
Nothing lived on the naked soil. And then the wind and birds brought plant seeds, spiders and other little creatures there. Only plants could grow first. Only they, in sunlight, could produce food from the minerals of the soil, water and air. While many animals landed on the island, they could find no food. A spider spun its web in vain, because there were no insects for its web to catch. Insects couldn’t stay until there were plants for them to eat. So plants had to be the pioneer life on this new island. [br] The passage centers on______.
选项
A、how an undersea volcano broke out
B、how an island rose up in the sea
C、how soil was formed on a new island
D、how life began on a volcano-produced island
答案
D
解析
文章从火山爆发讲起,谈到岛屿的形成,岛上沙土的形成,植物的产生以及随后动物的产生,所以文章的中心是“生命的产生”。
转载请注明原文地址:https://tihaiku.com/zcyy/3995439.html
相关试题推荐
Globalclimatechange,oftenseenasaprocessstretchingoverthousandsof
Globalclimatechange,oftenseenasaprocessstretchingoverthousandsof
Man:DoyoumindifIturnthetelevisionoff?Woman:I’minthemiddleofwatch
CarmenAraceMiddleSchoolissituatedinthepastoraltownofBloomfield,C
CarmenAraceMiddleSchoolissituatedinthepastoraltownofBloomfield,C
CarmenAraceMiddleSchoolissituatedinthepastoraltownofBloomfield,C
CarmenAraceMiddleSchoolissituatedinthepastoraltownofBloomfield,C
IrelandbecamesodependentonitthatthousandsofIrishpeoplestarvedwhenth
Japanisstill______onMiddleEasternoil.A、reliableB、imposingC、dependentD、
Hehadthe"right"accent,______middle-classparentsincourt,reliablewitnes
随机试题
Whatattractscustomers?Obviouslythequalityofaproductdoes,butvisual
Incollege,Iencounteredaruleofthumb:Foreverycredithourperweek,y
珠江是华南一大河系,流经广州市,是中国第三长的河流,仅次于长江和黄河。珠江三角洲(delta)是中国最发达的地区之一,面积约11,000平方公里。它在面
下列应在资产负债表中存货项目反映的是( )。 Ⅰ.肉鸡饲养场饲养的肉鸡 Ⅱ
中关村上市公司协会公布的《2016年中关村上市公司竞争力报告》显示,2015年中
对于严重偏态分布的数据,平均数比中位数和众数的代表性要好。()
下列有关资本成本的说法中,不正确的有()。A.留存收益成本=税前债务资本成
(2021年真题)下列安装工序中,不属于光伏发电设备安装程序的是()A.
A.持续淘米水样白带伴有奇臭 B.大量透明黏性白带 C.凝乳块状或豆渣样白带
关于物权的说法,正确的有()。A.所有权和抵押权可以同时存在于同一不动产之
最新回复
(
0
)