5.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 success of mankind.
Since 1960a new kind of tool has appeared.This is the silicon chip (硅芯片).It is smaller than a finger nail,but it can store lots 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.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?
64.From paragraph 1,we can knowC.
A.why early human beings cut skin from dead animals
B.how early human beings discovered the tools
C.what early human beings used the tools for
D.what food early human beings stored
65.The stone chip is thought to be the most important tool because itA.
A.was very important to the development of mankind
B.led to the invention of machines in the early time
C.developed cooking abilities of mankind
D.was one of the first tools of mankind
66.The silicon chip is mentioned in the passage toD.
A.show the changes of tools
B.introduce a new kind of tool
C.give an example of using tools
D.compare the effects of two kinds of tools
67.At the end of the passage the author seems to suggest that life in future isC.
A.out of order
B.less colorful
C.hard to predict
D.full of meanings.
分析 在本文中作者講述了工具對人類社會發(fā)展的重要作用.首先鋒利的石頭片幫助人類度過了早期的艱苦歲月,然后電子芯片的發(fā)明給人類生活帶來巨大的變化.科技的強(qiáng)大和發(fā)展的迅速使人們很難預(yù)測未來是什么樣子的.
解答 64.C.細(xì)節(jié)理解題.根據(jù)第一段People used them for cutting meat and skin from dead animals,and also for making other tools out of wood可知從本段中我們可以知道早期的人類使用工具的目的,故選C.
65.A.細(xì)節(jié)理解題.根據(jù)文章第二段尾句"Some scientists say that it was the key to the success of mankind"可知"stone chip"對于人類的發(fā)展起到了非常重要的作用,故選A.
66.D.推理判斷題.根據(jù)最后一段:Human beings used stone chips for more than two million years,but human life changed very little in that time.可知文章提到硅芯片是為了比較兩種工具的作用;故選D.
67.C.推理判斷題.文章最后一段中作者說人類在過去的幾百萬年時間里一直使用"stone chip",人類社會發(fā)生的變化很校而我們使用"silicon chips"才不過幾年,生活卻發(fā)生了巨大的變化.于是作者發(fā)出了疑問:"二十年后的生活會是什么樣子的呢?","二百萬年后的世界又會是什么樣子呢?",表明將來的生活無法預(yù)料,故選C.
點(diǎn)評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確的選擇.在做推理判斷題不要以個人的主觀想象代替文章的事實,要根據(jù)文章事實進(jìn)行合乎邏輯的推理判斷.