“These devices have opened up many more opportunities for young people to use media，whether it's on the bus，on the way to school or waiting in line at the pizza parlor，”says Rideout.

　　Often，kids multitask，or use more than one device at a time.“If you've got a chance to do something on your computer and take a phone call and have the TV on in the background，why not？”Media expert Cheryl Olson says.

　　Most experts agree technology has much to offer kids.But some worry the kids could be missing out on other activities like playing outside or hanging out with friends.“It's a matter of balance，”says Olson.“You've got to work on it.”

　　Multitasking while doing homework is another concern.Some kids listen to music，watch TV or use the phone while doing their homework.“It's important to make sure that you can stop and concentrate on one thing deeply，”says Rideout.

　　With new and exciting devices hitting stores every year，keeping technology use in_check is more important than ever.“Kids should try，”adds Rideout.“But parents might have to step in sometimes.”

　　1．The text is mainly about kids'________.

　　A．cell phone use　B．various hobbies

　　C．favorite video games

　　D．using electronic devices

　　解析选D。主旨大意题。文章通过Brandon Blanco的例子引入对“青少年使用电子设备”情况的研究，介绍了研究的结果、有关专家对青少年使用电子设备过多这一情况的分析。由此判断全文主旨是青少年使用电子设备。

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