·Keep their full name，address，telephone number，social security number and bank or credit card number to themselves.

　　·__4__

　　·Talk to their parents before considering a face­to­face meeting with anyone they meet online，and also consider the potential risks of such meetings.

　　__5__Parents need to discuss with their children how Internet use will be controlled，and what will happen if Internet use disturbs family time or other social activities.

　　Notes：

　　1．概述；简介

　　2．peer/pIə(r)/n.同龄人；同辈

　　3．cyber­bully网络欺凌

　　A．Possible risks include

　　B．keeping in contact with friends

　　C．communicating with family members

　　D．Be clear about the advantages and disadvantages

　　E．They offer both opportunities and risks for teenagers.

　　F．Establish rules about the use of social networking sites.

　　G．Post only information，photos，videos that are appropriate to be seen by everyone.

　　答案　1.E　2.B　3.A　4.G　5.F

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