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
In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces of a comet(彗星). When the fragments(碎片)land
In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces of a comet(彗星). When the fragments(碎片)land
admin
2015-06-09
24
问题
In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces of a comet(彗星). When the fragments(碎片)landed in the southern part of the giant planet, the explosions were watched by scientists here on earth. But what if our own planet was hit by a comet?
The year is 2094. It has been announced that a comet is heading towards the Earth. Most of it will miss our planet, but two fragments will probably hit the southern part of the Earth. The news has caused panic.
On 17 July, a fragment four kilometres wide enters the Earth’ s atmosphere with a huge explosion. About half of the fragment is destroyed. But the major part survives and hits the South Atlantic at 200 times the speed of sound. The sea boils and an enormous wave is created and spreads. The wall of water rushes towards southern Africa at 800 kilometres an hour. Cities on the African coast are totally destroyed and millions of people are drowned. The wave moves into the Indian Ocean and heads towards Asia.
Millions of people are already dead in the southern part of the Earth, but the north won’ t escape for long. Tons of broken pieces are thrown into the atmosphere by the explosions. As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. Wars break out as countries fight for food. A year later civilization has collapsed. No more than 10 million people have survived.
Could it really happen? In fact, it has already happened more than once in the history of the Earth. The dinosaurs(恐龙)were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a space fragment. The dinosaurs couldn’ t survive in the cold climate that followed and they became extinct. Will we meet the same end?
Why does the author mention dinosaurs at the end of the passage?
选项
A、Because they could only live in the warm climate.
B、Because they once dominated the Earth.
C、Because their extinction indicates future disasters.
D、Because dinosaurs and humans never live in the same age.
答案
C
解析
推理判断题。为了证明这种灾难发生的可能性,作者举例说明。举的例子是恐龙的灭绝。它们曾经在地球上生活了近1亿6千万年,但是在6千5百万年前突然消失,所以证明未来的地球上可能发生灾难。所以正确的答案为c。
转载请注明原文地址:https://kaotiyun.com/show/VMud777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Whatcanwelearnfromthisconversation?
Beijingistospendupto$20billiontochangetheChinesecapitalintoa21st-centuryoneforthe2008Olympics.Thegover
Whatisthemostprobableresultoftheconversation?
MyEnglish-Chinesedictionaryhasdisappeared.Who______havetakenit?
DosethewomanlikeChinesefood?
Whenistheirflight?
InJuly1994Jupiter,thelargestplanetinoursolarsystem,wasstruckby21piecesofacomet(彗星).Whenthefragments(碎片)l
Anewkindofradarhasbeendevelopedforspaceshiptravelers.Aworkinglaboratorymodelofanewsystemofradarthatmakesu
Whenistheirflight?
随机试题
短期资本是指企业使用期限在______以内的资本。()
左心室增大时心尖搏动移位的方向是()
关于砖砌体工程施工的说法,正确的有()。
操作风险评估方法中,运用最广泛、最成熟的是()
学生在学习完网球以后去学习乒乓球,动作技能迟迟没有形成,这种情况是动作技能迁移的哪一种?()
在幼小的儿童身上常常见到破涕为笑,脸上挂着泪水又笑起来的情况,这主要是因为()。
关于总线的叙述,以下正确的是()。Ⅰ.总线忙信号由总线控制器建立Ⅱ.计数器定时查询方式不需要总线同意信号Ⅲ.链式查询、计数器查询、独立请求方式所需控制线路由少到多排序是:链式查询、独立请求方式、计数器查询
Whatcanwelearnfromthedialogue?
Iam______tohearyourgoodnews.
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeling.【C1】______ofinformationhavenothingtodowith
最新回复
(
0
)