PersonalcomputersandtheInternetgivepeoplenewchoicesabouthowtospendtheirtime．
Somemayusethisfreedomtosharelesstimewithcertainfriendsorfamilymembers，butnewtechnologywillalsoletthemstayinclosertouchwiththosetheycaremostabout．Iknowthisfrompersonalexperience．
E-mailmakesiteasytoworkathome，whichiswhereInowspendmostweekendsandevenings．Myworkinghoursaren'tnecessarilymuchshorterthantheyoncewerebutIspendfewerofthemattheoffice．ThisletsmesharemoretimewithmyyoungdaughterthanImighthaveifshe'dbeenbornbeforeelectronicmailbecamesuchapracticaltool．
TheInternetalsomakesiteasytosharethoughtswithagroupoffriends．Sayyoudosomethingfunseeagreatmovieperhaps-andtherearefourorfivefriendswhomightwanttohearaboutit．Ifyoucalleachone，youmaytireoftellingthestory．
WithE-mail，youjustwriteonenoteaboutyourexperience，atyourconvenience，andaddressittoallthefriendsyouthinkmightbeinterested．Theycanreadyourmessagewhentheyhavetime，andreadonlyasmuchastheywantto．Theycanreplyattheirconvenience，andyoucanreadwhattheyhavetosayatyourconvenience．
E-mailisalsoaninexpensivewaystayinclosetouchwithpeoplewholivefaraway．MorethanafewparentsuseE-mailtokeepintouch，evendailytouch，withtheirchildrenoffatcollege．
WejusthavetokeepinmindthatcomputersandtheInternetofferanotherwayofstayingintouch．Theydon'ttaketheplaceofanyoftheoldways．
44．Thepurposeofthispassageisto___．
A．explainhowtousetheInternet
B．describethewriter'sjoyofkeepingupwiththelatesttechnology
C．tellthemerits（价值）andusefulnessoftheInternet
D．introducethereadertobasicknowledgeaboutpersonalcomputersandtheInternet
45．TheuseofE-mailhasmadeitpossibleforthewriterto___．
A．spendlesstimeworking
B．havemorefreetimewithhischild
C．workathomeonweekends
D．workataspeedcomfortabletohim
46．Accordingtothewriter，E-mailhasanobviousadvantageoverthetelephonebecausetheformerhelpsone___．
A．reachagroupofpeopleatonetimeconveniently
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