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
专升本
Humanity is a new experiment on planet Earth. For most of its history, life on Earth was restricted to the sea. Living things be
Humanity is a new experiment on planet Earth. For most of its history, life on Earth was restricted to the sea. Living things be
admin
2008-12-30
50
问题
Humanity is a new experiment on planet Earth. For most of its history, life on Earth was restricted to the sea. Living things began to populate the land slightly over 400 million years ago. And humans have existed for no more than 3 million years.
One way to represent the evolution of life is to compress the 4. 6-billion-year history of Earth into a 1-year-long film. In such a film, Earth forms as the film begins on January 1, and through all of January and February it cools and is cratered(变成坑状) and the first oceans form.
But those oceans remain lifeless until sometime in March or early April, when the first living things develop
. The 4-billion-year history of Precambrian (前寒武纪) evolution lasts until the film reaches mid-November, when primitive ocean life begins to evolve into complex organisms such as trilobites(三叶虫).
If we examine the land instead of the oceans, we find a lifeless waste. But once our film shows plant and animal life on the land, about November 28, evolution proceeds rapidly. Dinosaurs, for example, appear on about December 12 and vanish by Christmas Eve, as mammals (哺乳动物) and birds flourish.
Throughout the 1 -year-run of our film there are no humans, and even during the last days of the year as the mammals rise and dominate the landscape, there are no people. On the early evening of December 31, vaguely human forms move through the grasslands, and by late evening they begin making stone tools. The Stone Age lasts until about 11:45 p. m. , and the first signs of civilization, towns and cities, do not appear until 11:54 p. m. The Christian era begins only 14 seconds before the New Year, and the Declaration of Independence is signed with one second to spare.
In the 1-year-long film dinosaurs______.
选项
A、die out on December 25
B、appear after December 25
C、die out on December 24
D、appear on December 24
答案
C
解析
第四段第三句说恐龙是出现于12月12日,而“圣诞前夜”就消失了,所以答案选择C。
转载请注明原文地址:https://jikaoti.com/ti/zWJGFFFM
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Otherexperimentshaveshown【61】thebrainneedstimeto"digest"【62】hasbeenlearned.Thetimenecessary【63】thisis5to1
American【B1】______aresimilartoothercities【B2】______theworld.Ineverycountry,citiesreflectthevaluesofthe【B3】___
Acontractisanagreementbetweentwoormorepeople【71】onepersonagreestodosomethingbyaspecifieddateinreturnfors
Acontractisanagreementbetweentwoormorepeople【71】onepersonagreestodosomethingbyaspecifieddateinreturnfors
Topostpone______thedebtwillruinourbusinessreputation.
Doyoufindgettingupinthemorningsodifficultthatit’spainful?Thismightbecalledlaziness,butDr.Kleitmanhasanew
MostAmericansdon’tliketogetadvicefrommembersoftheirfamily.Whentheyneedadvice,theydon’tusually【61】peoplethey
MostAmericansdon’tliketogetadvicefrommembersoftheirfamily.Whentheyneedadvice,theydon’tusually【61】peoplethey
Themanagementoflogistical(物流的)operationisaboutmovementandstorageofmaterialsandfinishedproducts.Logisticaloperat
Fromchildhoodtooldage,wealluselanguageasameansofbroadeningourknowledgeofourselvesandtheworldaboutus.When
随机试题
“肺为水之上源”的主要依据是
下列哪个可以根据情况,增加或者减少甲类传染病病种,并予公布
有一种产品组合类型,它尽量向所有的用户或消费者提供所需要的产品,力求某一产品线的产品品种覆盖各个细分市场,按整体市场对不同种类产品的需求增加产品线的数量,而对产品线之间的关联性没有严格限制,它是()。
某固定资产原值为10万元,无残值,使用年限为5年,若采用双倍余额递减法计提折旧,则第二年应提折旧额为( )元。
一个完整的计算机系统是由()组成。
下列财产中只能专属于国家的有()。
下列说法中,符合合同法规定的有()。
教学《爱莲说》时,为了引导学生掌握托物言志的写作手法,教师列举使用该手法的其他诗词来说明。下列诗词不能作为例子使用的是()。
衡量一种社会制度先进与落后的根本标准是看它()。
Therehasbeenadiscussionrecentlyontheissueofcommunicationinanewspaper.Writeanessayofabout200wordstothenewsp
最新回复
(
0
)