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
2023-11-18
70
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
推断题。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/3198506.html
相关试题推荐
Humanbeingshaveusedtoolsforalongtime,______theywouldnothavebeenab
There’sbeenalotoftalkaboutextraterrestrialbeingsvisitingourplane
There’sbeenalotoftalkaboutextraterrestrialbeingsvisitingourplane
Whydidhumanbeingsbegintogrowcropsandraiselivestock?[br][originaltex
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsofthewor
Humanbeingshaveusedtoolsforaverylongtime.Insomepartsofthewor
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Onereasonhumanbeingscanthriveinallkindsofclimatesisthattheyc
随机试题
Wateris【B1】importantofallthethingswe【B2】anddrink.Notmanypeopleunderst
EBaywasfoundedinPierreOmidyar’sSanJoselivingroominSeptember
关于血栓闭塞性脉管炎的叙述,下列哪项不正确()A.多见于男性青壮年 B.病
在原材料一定的情况下,影响混凝土抗压强度决定性的因素是()。A.水泥强度
针对地下水除锰处理工艺,以下哪项表述是不正确的?( )A.生物除锰过程是以Mn
一个冬夏季兼用的定流量空调水系统,夏季工况的流量是冬季工况的2倍,下列循环水泵设
体温调节的整合中枢位于:A.延髓 B.脑干网状结构 C.下丘脑后部
关于佐剂的叙述,下列哪项错误A.佐剂是特异性免疫增强剂 B.与免疫原混合后可增
根据《环境影响评价技术导则—生态影响》,某公路工程需进行生态影响2级评价,其生态
电杆埋深为杆长的()。A.1/10 B.1/8 C.1/6 D.1/
最新回复
(
0
)