范文一：智能手机的积极影响
Nowadays, smartphones have become an essential part of students' daily lives. For high school students, smartphones are not just tools for communication, but also powerful learning assistants. With a smartphone, students can search for information, watch educational videos, and even take online courses. For example, when I don't understand a math problem, I can quickly find explanations on the Internet. This saves time and helps me learn more efficiently.
此外，智能手机不仅仅是通讯工具，更是强大的学习助手。通过智能手机，学生可以搜索信息、观看教学视频，甚至参加在线课程。例如，当我遇到不会的数学题时，我可以快速在网上找到讲解。这节省了时间，也让我学得更高效。
✍️点评：本文开头直接点题，使用了“not just... but also...”结构，增强表达逻辑性。关键词如“learning assistants”“educational videos”贴近高中生生活，适合考试写作。建议背诵并模仿此句型结构。
📖重点词汇：essential（必不可少的），efficiently（高效地），educational（教育的）
范文二：智能手机的负面影响
Although smartphones bring many benefits, they also cause some problems for high school students. One major issue is distraction. Many students spend too much time on social media or playing games, which affects their study and sleep. I know a classmate who stays up late every night chatting online. As a result, he often feels sleepy in class and cannot focus on lessons.
尽管智能手机带来许多好处，但也给高中生带来了一些问题。主要问题之一是分心。许多学生花太多时间在社交媒体或玩游戏上，影响了学习和睡眠。我认识一位同学，他每天晚上熬夜聊天。结果，他上课经常犯困，无法集中注意力。
✍️点评：使用“Although”引导让步状语从句，体现英语写作的逻辑层次。举例说明（I know a classmate...）增强了文章说服力。适合在议论文中使用。
📖重点句型：Although...，they also...（尽管……但也……）；As a result（结果）
范文三：合理使用智能手机
Smartphones are neither good nor bad by themselves—it depends on how we use them. As high school students, we should learn to manage our time and use smartphones wisely. For example, we can use apps to set study schedules or block distracting websites during class time. At the same time, it's important to put down the phone and spend time with family and friends in real life.
智能手机本身并无好坏之分——关键在于我们如何使用。作为高中生，我们应学会管理时间，明智地使用手机。例如，我们可以用应用程序制定学习计划，或在上课时间屏蔽干扰性网站。同时，放下手机，多与家人朋友面对面交流也很重要。
✍️点评：本篇采用辩证思维，提出“工具无好坏，使用方式决定影响”的观点，立意深刻。使用“neither... nor...”和“it depends on...”等结构，语言自然流畅，适合高分作文参考。
📖亮点表达：wisely（明智地），manage our time（管理时间），in real life（在现实生活中）
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