Do you feel upset when you hear that your school might not allow cell phones? Do you break into a cold sweat when your cell phone battery(电池) dies? If you         live without your cell phone, you might have a        .
A recent study found that some people could be         to their cell phones. The study was conducted at Staffordshire University in England. About 40 percent of students         said they couldn’t do without their cell phones. About 90% said they took their         with them everywhere. One third of students surveyed said they used cell phones to         themselves up.
The study also asked students 18 to 25 questions designed to         addictive behavior. The results found that one in six cell phone users have a lot in         with gambling addicts (赌瘾). Some people said they sometimes lied about their cell phone use.         admitted stealing to pay for their cell phone habit.
Dr David Sheffield,         conducted the study, said he wasn’t surprised by the        . “Students use their phones        , and this has both positive         such as staying in touch with friends and family, and negative ones too, such as         costs and social costs,” he told Weekly Reader. “The most         finding was that a number of people reported they had         a relationship or job because they spent too much time on mobile phones .”
      part of the study, some students agreed to take a         from their cell phones. After three phone-free days, students reported feeling less         about their daily lives. That might be a         reason to hang up the phone!

A．must B．mustn’t C．can D．can’t

A．problem B．disease C．question D．trouble

A．pleased B．crazy C．devoted D．interested

A．surveyed B．examined C．checked D．tested

A．books B．phones C．notes D．pens

A．show B．cheer C．pick D．take

A．change B．form C．develop D．check

A．correction B．relation C．touch D．common

A．Other B．Others C．The others D．The other

A．who B．which C．that D．what

A．discoveries B．explorations C．results D．experiments

A．carefully B．briefly C．hardly D．frequently

A．effects B．points C．decisions D．ideas

A．financial B．physical C．national D．natural

A．interesting B．surprising C．exciting D．pleasing

A．founded B．earned C．built D．lost

A．For B．By C．As D．Of

A．break B．chance C．risk D．fortune

A．encouraged B．stressed C．satisfied D．inspired

A．funny B．strange C．good D．wrong