首页
登录
职称英语
Human beings have used tools for a very long time. In some parts of the worl
Human beings have used tools for a very long time. In some parts of the worl
游客
2024-11-01
10
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、colorful.
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。这说明了随着科学技术的迅猛发展,人类的将来变得越发难以预测。
转载请注明原文地址:https://tihaiku.com/zcyy/3826966.html
相关试题推荐
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsoftheworl
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsoftheworl
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsoftheworl
The_________ofthepriest’ssermonwasthatallhumanbeingsshouldloveeach
The______ofthepriest’ssermonwasthatallhumanbeingsshouldloveeachoth
1 Humanbeingshaveusedtoolsforaverylongtime.Insomepartsoftheworld
There’sbeenalotoftalkaboutextraterrestrialbeingsvisitingourplanet.
随机试题
Manypeoplefeelthathumanbeingsshouldberesponsibleforthedisappearan
Whatdoesthemanadvisethewomantodo?[br][originaltext]W:I’mreallyangr
[originaltext]W:Youarelateagain!We’vebeenexpectingyouforanhour.For
运输高致病性病原微生物菌(毒)种或者样品,应当经省级以上人民政府卫生主管部门或者
恶阻,口淡,呕吐清涎者,多为( )。A.脾胃虚弱 B.脾虚痰湿 C.肝胃不
哥白尼的“太阳中心说”并非真正科学.但他的巨大进步意义在于( )。A.为近代科
(2015真题)对建筑进行性能化防火设计时,火灾数值模拟软件FDS采用的火灾模型
关于分批装运和转运,下列说法正确的有()。A、因货物数量较大,可以规定分批装运条
关于预制安装水池现浇壁板接缝混凝土施工措施的说法,错误的是( )。A.强度较预制
在我国,总分类科目制定的权威部门是( )。A、银监会 B、国家税务总局 C、
最新回复
(
0
)