雅思写作Task 1中的线图（Line Graph）是常见题型之一，要求考生在20分钟内完成至少150词的描述，线图通常展示数据随时间的变化趋势，考生需准确捕捉关键信息并进行清晰对比，以下是一篇高分范文及详细解析，帮助考生掌握写作技巧。
示例**
The graph below shows the number of international students enrolled in a UK university between 2000 and 2020. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
（假设图表显示：2000年5000人，2005年8000人，2010年12000人，2015年15000人，2020年10000人）
高分范文（Band 8+）
The line graph illustrates changes in the enrollment of international students at a UK university over two decades, from 2000 to 2020. Overall, the number of overseas students increased significantly until 2015, followed by a sharp decline in the final five years.
In 2000, the university admitted 5,000 international students. Over the next five years, this figure rose steadily to 8,000, marking a growth of 60%. The upward trend continued more sharply between 2005 and 2010, with enrollments surging to 12,000—a 50% increase compared to the previous period.
The most dramatic growth occurred from 2010 to 2015, when the number of international students peaked at 15,000. However, the following five years saw a reversal in this trend. By 2020, enrollments had dropped to 10,000, representing a 33% decrease from the 2015 high.
Several factors may explain these fluctuations. The steady rise from 2000 to 2015 could be attributed to the UK’s growing reputation as an education hub, while the post-2015 decline might reflect stricter visa policies or increased competition from other countries.
写作技巧解析
开头段：概述图表核心信息
- 避免照抄题目,用同义替换（如“shows”改为“illustrates”）。
- 明确时间范围和数据主体（国际学生数量）。
- 一句话总结整体趋势（上升后下降）。
主体段：分段描述趋势变化
- 按时间顺序：2000-2005（平缓增长）、2005-2010（加速增长）、2010-2015（峰值）、2015-2020（下降）。
- 数据对比：使用百分比（如“60% growth”）增强逻辑性。
- 关键节点：突出最高点（2015年）和转折点（2015年后）。
结尾段：适当推测原因（非必须）
- 可简要分析趋势背后的可能因素,但避免过度主观。
- 使用推测性词汇（如“may reflect”“could be attributed to”）。
语言亮点
- 趋势动词：rise steadily, surge, peak, drop sharply.
- 衔接词：however, while, followed by.
- 数据表达：a growth of 60%, representing a 33% decrease.
常见错误避免
- 机械罗列数据：避免写成“In 2000…, in 2005…, in 2010…”，应分组对比。
- 遗漏对比：未比较不同阶段的增长率差异（如2000-2005 vs. 2005-2010）。
- 时态错误：过去时间段用一般过去时（rose），预测或当前状态用现在完成时（has declined）。
高分句型储备
- 描述趋势：
- “The figure experienced a dramatic surge, climbing from…to…”
- “A sharp downturn was observed in the final period.”
- 对比数据：
- “This was twice as high as the number in 2000.”
- “In contrast to the previous growth, the following years saw…”
线图作文的核心在于逻辑清晰和数据选取,考生需优先描述最显著的变化，而非每个细节，通过合理分段和精准用词，即使简单数据也能写出高分文章。
