The good news is that today's teenagers are __1__ readers and prolific ( 多产的 )writers. The bad news is that what they are reading and writing are text messages.
     According to a survey done last year by Nielsen, Americans between the ages of 13 and 17 send and receive an ___2__ of 3,339 texts per month. Teenage girls send andreceive more than 4,000. It's an unmissable trend. Even if you don't have teenage kids,you'll see other people's __3__ slouching (无精打采地站立或行动 ) around, eyesaverted, tapping away,4 of their surroundings.
     Half of today's teenagers __5__ don't read books--except when they're made to.
     According to the most recent survey by the National Endowment for the Arts, the __6__ ofAmericans between the ages of 18 and 24 who read a book not required at school or atwork is now 50.7 percent, the lowest for any adult age group younger than 75, and downfrom 59 percent 20 years ago.
Why does this __7__ ? For two reasons: First, we are __8__ behind more-literatesocieties. According to the results of the Organization for Economic Cooperation andDevelopment's most recent Program for International Student Assessment, the __9__ inreading ability between the 15-year-olds in the Shanghai district of China and those in theUnited States is now as big as the gap between the U.S. and Serbia or Chile. But the moreimportant reason is that children who don't read are __10__ from the civilization of theirancestors.
    So, welcome to book camp, kids. 
A．absolutely   
B．average  
C．derive 
D．enthusiastic 
E．Fall 
F．Gap 
G．Hardly 
H．Ignorant 
I．Lagging 
J．Matter 
K．normally 
L．Offspring 
M．Proportion 
N．Separated 
O．unaware