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
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 tha
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 tha
admin
2010-05-25
49
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?
Which of the following is not true about the silicon chip?
选项
A、It has appeared since 1960.
B、It is an electronic brain and can store a lot of information.
C、It is a chip of silicon crystal and is very small.
D、It becomes cleverer and more expensive every year.
答案
D
解析
细节理解题。根据文章第四段,芯片变得越来智能,体积越来越小,却越来越便宜。因此,D项的阐述不正确。
转载请注明原文地址:https://kaotiyun.com/show/gV2K777K
0
专业英语四级
相关试题推荐
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsurvivalintheopen.Theyhadneitherthepowerfult
WhichisNOTnecessaryatafuneralinWesterncountries,accordingtothepassage?
AccordingtoMr.Bacon,peoplekeepsnakesbecause______.
ThismonthBritain’sbusinessschoolswillletlooseanotherbatchofgraduates,peoplewell-versedinthetheoriesofmarketing
Aestheticthoughtofadistinctivelymodernbentemergedduringthe18thcentury.Thewesternphilosophersandcriticsofthist
Aestheticthoughtofadistinctivelymodernbentemergedduringthe18thcentury.Thewesternphilosophersandcriticsofthist
Itishardtoimaginealargecitywithoutpolicemen,butsuchwasthe______inLondonintheearly18thcentury.
Thoughcomputerhasmanyadvantages,itisbynomeanswithoutits_________.
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwithagun,butthemanwiththeportablecomputerinbus
Ascientificdiscoveryisoftenmade【C1】______beforesomeoneisabletoputittouse.【C2】______,scientistsdiscoveredhow
随机试题
产后出血的治疗原则包括:
代谢性碱中毒的临床表现不包括
患儿,男性,6个月。哭闹时,右侧腹股沟隆起肿块,平静时肿块自行消失。最佳处理方法是()
患者,女,10岁。左上颌中切牙因外伤致牙折,检查时发现,冠部已完全脱落,根管口暴露,位于龈下,X线检查近冠1/3处根折。不恰当的处理是()
患者,男,25岁,症见遗精滑泄,神疲乏力,四肢酸软,腰酸耳鸣,尺脉虚弱者。治宜选用
高层剪力墙结构的某片剪力墙,共13层,总高度35.7m。首层层高3.3m,二层至十三层层高均为2.7m,墙厚度各层均为180mm(如图所示)。混凝土强度等级,首层至三层为C30,四层至九层为C25,十层至十三层为C20,首层总水平地震作用经协同工作分析分配
有权批准期货交易所设立的机关是()。
在一棵二叉树的先序遍历、中序遍历、后序遍历所产生的序列中,所有叶结点的先后顺序
微型计算机控制器的基本功能是()。
位于
最新回复
(
0
)