阅读理解.W阅读理解.WeareallbusytalkingaboutandusingtheInternet,buthowmanyofusknowthehistoryoftheInternet?ManypeoplearesurprisedwhentheyfindthattheInternetwassetup(建立)inthe1960s.Atthattime,

　　阅读理解.W

　　阅读理解. WeareallbusytalkingaboutandusingtheInternet,buthowmanyofusknowthehistoryoftheInternet?

　　ManypeoplearesurprisedwhentheyfindthattheInternetwassetup(建立)inthe1960s.Atthattime,

　　computerswerelargeandexpensive.Computernetwork(网络)didn'tworkwell.Ifonecomputerinthe

　　networkbrokedown,thenthewholenetworkstopped.Soanewnetworksystem(系统)hadtobesetup.

　　Itshouldbegoodenoughtobeusedbymanydifferentcomputers.Ifpartofthenetworkwasnotworking,

　　informationcouldbesentthroughanotherpart.Inthiswaycomputernetworksystemwouldkeeponworking

　　allthetime.

　　AtfirsttheInternetwasonlyusedbythegovernment(政府),butintheearly1970s,universities,hospitals

　　andbankswereallowedtouseit,too.However,computerswerestillveryexpensiveandtheInternetwas

　　difficulttouse.Bythestartof1990s,computersbecamecheaperandeasiertouse.Scientistshadalso

　　developedsoftwarethatmade"surfing"theInterneteasier.

　　Todayitiseasytogeton-lineanditissaidthatmillionsofpeopleusetheInterneteveryday.Sendinge-mails

　　ismoreandmorepopularamongyoungpeople.TheInternethasnowbecomeoneofthemostimportantparts

　　ofpeople'slife.1.HowlonghastheInternetbeenused?[ ]A.Forabout10years.

　　B.Forabout20years.

　　C.Forabout40years.

　　D.Forabout60years.2.Whatwouldhappenwhenonecomputerinthenetworkbrokedownafterthenewnetworksystemwas

　　setup?[ ]A.Theothercomputerswouldwait.

　　B.Theothercomputerswouldstillwork.

　　C.Someoftheothersstillworked.

　　D.Theothercomputerswouldn'twork.3.Whatistrueaboutcomputersinthe1990s?[ ]A.Theybecamecheaperandeasiertouse.

　　B.Theybecamelargerandlarger.

　　C.Peoplecouldn'tbuythemanywhere.

　　D.Peoplecouldgetinformation