首页
登录
职称英语
[originaltext] Human beings have used tools for a very long time. In some pa
[originaltext] Human beings have used tools for a very long time. In some pa
游客
2024-06-08
2
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 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 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?
选项
A、The smaller it is, the cleverer it is.
B、The smaller it is, the less it costs.
C、It’s small, but stores a lot of information.
D、It’s a new tool which is used in computers only.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3625155.html
相关试题推荐
[originaltext]Atonetime,computerswereexpectedlargelytoremovethenee
[originaltext]Atonetime,computerswereexpectedlargelytoremovethenee
[originaltext]M:Hello,NationalExpressCourierCompany,CustomerServiceDepa
[originaltext]M:Hello,NationalExpressCourierCompany,CustomerServiceDepa
[originaltext]M:Hello,NationalExpressCourierCompany,CustomerServiceDepa
[originaltext]W:OK,Mr.Taylor,let’sgoaheadandbegin.Firstofall,tellm
[originaltext]W:OK,Mr.Taylor,let’sgoaheadandbegin.Firstofall,tellm
[originaltext]M:Howisschoolgoing,Barbara?Areyoutakinganynewclasses?
【B1】[br]【B10】[originaltext]Afewyearsagoitwasfashionabletospeakof
【B1】[br]【B9】[originaltext]Afewyearsagoitwasfashionabletospeakofa
随机试题
Youthisnotamatteroftimebutamatterofself-improvement,bothphysica
Walking,ifyoudoitvigorouslyenough,istheoverallbestexerciseforre
[originaltext]F:Hello,Jim.What’syourproblem?M:Hi,DoctorLee.Idon’tfe
A. B. C. D.
综合布线系统是楼宇和园区范围内,在统一的传输介质上建立的可以连接电话、计算机、会
A.鼠疫、霍乱和炭疽 B.甲类传染病病人和病原携带者、乙类传染病病人中的艾滋病
影响售楼处人员配置的因素有( )。A、项目销售单位的多寡 B、售楼处的方
关于企业人力资本的概念,以下说法不正确的是()。A.能够为企业创造现在或未来收
启蒙运动,通常是指在18世纪初至1789年法国大革命间的一个新思维不断涌现的时代
属于交感神经末梢抑制药的是A.硝酸甘油 B.甲基多巴 C.硝苯地平 D.哌
最新回复
(
0
)