4、Julie Zingeser texts at home，at school，in the car while her mother is driving．She texts during homework, after pompon（舞繡球）practice and as she walks the family dog．She takes her cellphone with her to bed．Every so often，the hum（嗡嗡聲）of a new message wakes the Rockville teen from sleep．“I would die without it，”Julie，15，says of her text life．

This does not surprise her mother, Pam, who on one recent afternoon scanned the phone bill and found her youngest daughter, in one busy month，had sent and received 6,473 text messages．For Pam Zingeser, the key problem is not cost—it's$30 a month for the family’s unlimited texting plan—but the effects of so much messaging．Pam wonders：What will this generation learn and what will they lose in the endless stream of sentence fragments（碎片），abbreviations and emoticons?

     Parents, educators, and researchers are sharing similar concerns as text messaging has exploded across the formative years of the nation's youngest generation. Teens now do more texting on their cellphones than calling. Nationally, more than 75 billion text messages are sent a month, and the craziest texters are 13 to 17. Teens with cellphones average 2,272 text messages a month, compared with 203 calls, according to the Nielsen Co.

    The tap，tap，tap of connectivity can benefit teenagers at a time in life when they cannot always get together in art unscheduled way．Texters are “sharing a sense of  （69題）  ，”said Mimi Ito of the University of California at Irvine．For families, the text world call bring convenience as never before in arranging tides，doing errands（差事），letting parents know of changing plans．

    But some experts say there are downsides，starting with declines in spelling，word choice and writing complexity．Some suggest too much texting is related to an inability to focus．

1．The first paragraph mainly tells us that Julie Zingeser __________

    A．joins in all kinds of activities

    B．sends and receives texts all the time

C．does nothing besides texting

D．does everything by texting

2．Pare disapproves of her daughter's texting because she worries that it may be ________

    A．a(chǎn) waste of money

    B．a(chǎn) waste of time

    C．harmful in every way

D．bad for language learning

3．The underlined phrase "the formative years" in the 3rd paragraph refers to the period when ________

A．someone's character develops

B．someone experiments with new things

C．someone learns to speak

D．someone grows from baby into adult

4．The word missing in the blank in the 4th paragraph must be _______

A．independence                            B．overexcitement

C．co-presence                             D．non-attendance

5．The original title of the article should be: “6,473 Texts a Month, But _______”.

A．a(chǎn)t What Cost?                             B．What for?

C．Who Cares?                                D．How Could lt Be?