Ⅳ. 书面表达。
假如你是李华,你们学校校报正在就“如何保证网络安全”这一话题征稿。请你根据下面的思维导图提示,以“How to Stay Safe Online”为题投稿。

注意:
1. 信件必须包含思维导图中所有要点,可适当发挥,使句子通顺、连贯。
2. 文中不得出现真实的校名和人名。
3. 80词左右,标题和开头已给出,不计入总词数
How to Stay Safe Online
As we know, with the development of technology, the internet is more and more popular. It’s helpful and interesting. But we also know that it’s not always safe.

First, not everything online is true, and we may get into trouble easily if we are careless. Here are my tips for staying safe online. First, never show your personal information like your address or phone number to strangers. Second, keep away from unfamiliar websites and strange emails. Third, never meet your online friends in person alone. Besides, remember to ask your parents for help if you meet something unusual online.

这是八年级课标要求的提纲类话题作文，写作步骤如下：1. 先承接给定开头，说明网络存在安全隐患的原因：网上并非所有内容都是真实可信的，粗心就容易遇到危险。2. 依次覆盖思维导图全部要点：第一，不要向他人泄露姓名、住址、手机号等个人隐私信息；第二，不要访问陌生网站、回复陌生邮件；第三，不要私自和线上认识的网友线下见面。3. 补充一个合理的延伸安全建议，比如遇到异常情况及时告知家长，最后收尾，保证行文连贯，词数控制在80左右，符合写作要求。