高中英语 Unit 3 Computers课件 新人教版必修2.ppt

unit3 computers 学习目标展示 背景知识链接 computersareplayinganimportantpartinourdailylife soweshouldknowaboutsomewordsaboutcomputers thistexttellsyouafewcomputerwords 电脑在我们的日常生活中起着重要的作用 因此我们应该了解一些电脑词语 这篇文章会告诉你几个电脑词语 computerexpertdouglasengelbartdevelopedtheideaforthemouseintheearly1960s thefirstcomputermousewasacarved blockofwoodwithtwometalwheels itwascalledamousebecauseithadatailatoneend thetailwasthewirethatconnectedittothecomputer usingacomputertakessometraining peoplewhoareexpertsaresometimescalledhackers ahackerisusuallyapersonwhowritessoftwareprogramsinaspecialcomputerlanguage buttheword hacker isalsousedtodescribeapersonwhotriestostealinformationfromcomputersystems anotherwellknowncomputerwordisgoogle itisthenameofapopularsearchengine fortheinternet peopleusethesearchenginetofindinformationaboutalmostanysubjectontheinternet thepeoplewhostartedthecompanynameditgooglebecauseinmathematics googol spelledg o o g o l isanextremelylargenumber itisthenumberonefollowedbyonehundredzeros whenyou google asubject youcangetalargeamountofinformationaboutit somepeopleliketo google theirfriendsorthemselvestoseehowmanytimestheirnameappearsontheinternet notes device di vais n 装置 设备 cursor k s r n 光标 carve ka v vt 雕刻 hacker h k r n 黑客 searchenginen 搜索引擎 taskwhatisthemainideaofthesecondparagraph a douglasengelbartwasagreatinventor b thefirstmousewasmad