Todaysendingtextmessages（短信）throughmobilephone（手机）isapartofourlives．Accordingtoasurvey（调查），athirdoftheU．S．childrensendmorethan100textmessagesaday．SendingtextmessagesisbecomingmoreandmorepopularamongyoungpeopleinChina，too．Childrenprefertextmessagestocommunicate（交流）withfriendsnomatter（不论）wheretheyare，evenunderthenosesofparentsandteachers．Itseemsthatsomechildrenare“addicted（上瘾）”tosendingtextmessages．Infact，sendingtoomanytextmessagesisbadfortheirlives，healthandstudy．However，itisn’tallbad．Ithelpstoimproveourlivesinsomeways．Todaymanychildrengreet（问候）eachotheronholidaysbysendingtextmessagesinsteadofwritingpapercards．DuringthelastSpringFestival，morethan15billion（十亿）textmessagesweresentinChina．“Sendingtextmessageshelpssavemypocketmoney，”saidWangCheng，afriendofmine，“anditsavespaper，too．”．Manyparentssendtheirkidstextmessagesinsteadofgivingordersbymouth．Itsoundsmorefriendly．Andchildrencanacceptthemeasily．
46．Sending___ is a part of our lives today．
A．magazines B．text messages C．cards
47．___ young people like sending text messages，too．
A．Chinese B．English C．Indian
48．Why is sending too many text messages bad for study？___
A．Because it costs much time．
B．Because it costs much money．
C．Because it makes the parents angry．
49．Today many children greet each other on holidays by___．
A．visiting
B．writing paper cards
C．sending text messages
50．Sending text messages can___．
A．make us study well
B．save money and paper
C．make children clever．
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