（二）国土安全 territorial security1.territorial security 国土安全2.territorial sovereignty 领土主权3.border defense/border security边防/边境安全4.territorial waters 领海5.defend national territory 保卫国土6.border patrol 边境巡逻7.safeguard territorial integrity捍卫领土完整8.resist external invasion抵御外来侵犯
（三）网络安全 cyber security / online security1.cyber security 网络安全2.cybercrime 网络犯罪3.cyber fraud 网络诈骗4.personal privacy 个人隐私5.information leakage 信息泄露6.data safety 数据安全7.online rumors 网络谣言8.illegal information 不良/非法信息9.cyber attack 网络攻击10.digital footprint 数字足迹11.real-name registration 实名认证12.regulate online behavior规范网络行为
国家安全是人民幸福生活的基础。
2.With the rapid development of the Internet, cyber security has drawn wide public attention.
随着互联网快速发展，网络安全备受关注。
（二） 危害阐述句
1.Improper online behavior may cause serious information leakage.
不当网络行为会造成严重的信息泄露。
2.Any act that damages territorial integrity will be severely punished by law.
任何破坏领土完整的行为都将受到法律严惩。
（三） 措施建议句（应用文万能）
1.The government should make strict laws to strengthen security management.
政府应完善法律，加强安全管理。
2.We teenagers must raise awareness of cyber security and self-protection.
青少年必须提高网络安全与自我保护意识。
3.Refuse to spread online rumors and guard against various cyber traps.
拒绝传播网络谣言，警惕各类网络陷阱。
（四）总结升华句
1.It is everyone’s duty to defend national security in daily life.
维护国家安全，人人有责。
2.Only by joint efforts can we build a safer and more stable society.
唯有共同努力，才能构建更安全稳定的社会。
参考范文：
普通版
Dear classmates,
Today I’m honored to present a brief introduction to China’s transport evolution.
To begin with, shared bikes have revolutionized short commutes, offering a low-carbon, hassle-free option. Next, high-speed rail, a shining national business card, has dramatically cut travel time between cities. Finally, the booming new energy vehicle industry is driving green mobility, effectively curbing carbon emissions.
These innovations mirror China’s rapid progress, making travel faster, greener and more accessible.
普通版Dear schoolmates,Last week, I visited the poster exhibition themed on National Security Education Day held in our school. The works, designed by students, vividly illustrate various aspects of national security, from cyber safety to cultural protection, with creative drawings and clear messages.The exhibition is still open in the school hall. It’s a great chance to deepen your understanding of national security. Don’t miss it!
高分亮点版：Dear schoolmates,Having visited the poster exhibition themed National Security Education Day held in our campus last week, I was deeply impressed. These student-created works vividly present diverse dimensions of national security—ranging from cyber defense to cultural sovereignty—with striking visuals and thought-provoking captions.The exhibition is ongoing in the school hall. It serves as a profound chance to raise your awareness of national security. Don’t miss this eye-opening experience!
（平凡但是努力的我）
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