首页
登录
职称英语
Human beings have used tools for a very long time. In some parts of the wor
Human beings have used tools for a very long time. In some parts of the wor
游客
2023-11-23
59
管理
问题
Human beings have used tools for a very long time. In some parts of the world you can still find tools that people used more than two million years ago. They made these tools by hitting one stone against another. In this way they broke off pieces from one of the stones. These chips of stone were usually sharp on one side. People used them for cutting meat and skin from dead animals, and also for making other tools out of wood. Human beings needed to use tools because they did not have sharp teeth like other meat eating animals, such as lions and tigers. Tools helped people to get food more easily.
Working with tools also helped to develop human intelligence. The human brain grew bigger, and human beings began to invent more and more tools and machines. The stone chip was one of the first tools that people used, and perhaps it is the most important. Some scientists say that it was the key to the success of mankind.
Since 1960 a new kind of tool has appeared. This is the silicon chip—a little chip of silicon crystal. It is smaller than a finger-nail, but it can store more than a million "bits" of information. It is an electronic brain.
Every year these chips get cleverer, but their size gets smaller, and their cost gets less. They are used in watches, calculators and intelligent machines that we can use in many ways.
In the future we will not need to work with tools in the old way. Machines will do everything for us. They will even talk and play games with us. People will have plenty of spare time. But what will they do with it?
Human beings used stone chips for more than two million years, but human life changed very little in that time. We have used silicon chips for only a few years, but life is changing faster every day. What will life be like twenty years from now? What will the world be like two million years from now? [br] At the end of the passage the author seems to suggest that life in future is ______.
选项
A、disastrous
B、unpredictable
C、exciting
D、colourful
答案
B
解析
本题要求读者体会文章最后一段的深层含义。作者运用对比的手法,强调了“硅晶体使用时间虽短,却极大地改变了人们的生活”这个事实。这说明随着科学技术的迅猛发展,人类的未来将变得越发难以预测。
转载请注明原文地址:https://tihaiku.com/zcyy/3211777.html
相关试题推荐
中华民族自古以来从不把人看作高于一切,……Chinesepeoplehaveneverthoughtofhumanbeingsasthehi
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsoftheworl
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsoftheworl
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsofthewor
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsofthewor
The______ofthepriest’ssermonwasthatallhumanbeingsshouldloveeachoth
1 Humanbeingshaveusedtoolsforaverylongtime.Insomepartsoftheworld
随机试题
[originaltext]LastsummerIwentthroughatrainingprogramandbecameali
ThroughaseriesofexperimentsanAmericanscientisthasobtainedanunderst
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalf
Whenanearthquakeoccurs,partoftheEarth’ssurfacemoves.Infact,the【
职工累计工作已满1年不满10年的,享受年休假()天。A.3 B.5
女性肝硬化患者出现闭经的原因A.雄激素过多 B.抗利尿激素过多 C.醛固酮过
第一次比较系统地论述社会主义初级阶段理论的党的代表大会是( )。A.党的十二大
清开灵注射液的常见不良反应是A.血小板减少 B.急性喉头水肿 C.过敏性哮喘
适用于中砂以上砂性土的注浆方法是()。A.劈裂注浆 B.压密注浆 C.电动
根据《节约能源法》,国家对固定资产项目实行()制度。A.节能核算 B.节能评
最新回复
(
0
)