EXERCISE 21

　　Computer are now being pushed into school.We know that multimedia will make __1_ easy and fun.Children will happily learn from __2_ characters while taught by expertly __3_ software.Who needs teachers when you have got __4_ education?These expensive toys are difficult to use in the classroom and __5_ extensive teacher training.Sure,kids love video games——__6_ think of you own experience:can you __7_ even one educational filmstrip of many years ago?I'll __8_ you remember the two or three great teachers who made a __9_ in your life.

　　Then there is cyberbusiness.We are promised _10__ catalog shopping——just point and click for great deals.We'll order airline tickets _11__ the network,book restaurants and negotiate sales _12__.Stores will become obsolete.So how come my local mall does more __13_ in an afternoon than the entire Internet __14_ in an month?Even if there were a trustworthy way to __15_ money over the Internet,the network is __16_ a most essential ingredient of trade and commerce:salespeople.

　　What's absent from this electronic wonderland?People contact.Computers and networks __17_ us from one another.A network chat line is a limp __18_ for meeting friends over coffee.No interactive multimedia display comes __19_ to the excitement of a __20_ concert.This virtual reality where frustration is legion and where——in the holy names of Education and Progress——important aspects of human interactions are relentlessly devalued.

　　1）    A  schoolwork    B exercise         C teamwork   D research
　　2）    A  stimulated     B animated        C developed   D interested
　　3）    A  guided        B prepared        C tailored      D sold
　　4）    A computer-aided                    B computer-presented
　　　　 C computer-designed               D computer-developed
　　5）    A  promise       B introduce        C encourage   D require
　　6）    A  but           B just             C and        D therefore
　　7）    A  appreciate     B recall            C comment   D produce
　　8）    A  recommend    B guess            C bet        D urge
　　9）    A  result         B mark            C impression  D difference
　　10）   A  immediate     B free             C versatile    D instant
　　11）   A  over          B with             C by         D in
　　12）   A  decisions      B agreements       C contracts    D plans
　　13）   A  communication  B commerce       C business    D program
　　14）   A  reserves        B handles         C subscribes   D transmits
　　15）   A  mail          B deposit           C send       D save
　　16）   A  missing       B disappearing       C expelling    D retaining
　　17）  A  dismantle      B confine           C discriminate  D isolate
　　18）   A  occasion      B substitute         C change      D compromise
　　19）   A  near          B up              C close        D back
　　20）   A  life           B alive            C living        D live

　　参考答案：

　　1——5  ABCAD
　　6——10  ABCDD
　　11——15   ACCBC
　　16——20   ADBBD