在雅思写作Task 1中，数据趋势的预测是常见考点之一，无论是线形图、柱状图还是表格题，考生常需描述未来可能的变化趋势，掌握精准的预计表达方式，不仅能提升词汇多样性，还能增强逻辑严谨性，帮助考生在评分标准的“词汇丰富度”和“语法准确性”上获得高分。
基础预计表达
常见动词短语
- is expected to（预计会）
- 例句：The number of tourists is expected to rise steadily by 2030.
- is predicted to（预测会）
- 例句：Solar energy usage is predicted to surpass fossil fuels in the next decade.
- is projected to（预计将）
- 例句：Urban populations are projected to double by 2050.
情态动词表达可能性
- will likely（很可能会）
- 例句：Online sales will likely dominate retail markets.
- may/might（可能）
- 例句：Traditional book sales might decline further.
这些基础表达适合直接描述数据趋势，但需注意时态一致，避免混淆过去与未来数据。
高级句式拓展
被动语态增强客观性
- It is anticipated that...（预计……）
- 例句：It is anticipated that renewable energy investments will grow exponentially.
- It is forecasted that...（预测……）
- 例句：It is forecasted that the gap between rich and poor will widen.
条件句模拟预测逻辑
- If the trend continues,...（如果趋势持续……）
- 例句：If the trend continues, emissions could reach critical levels by 2040.
- Assuming that...（假设……）
- 例句：Assuming that policies remain unchanged, deforestation rates may stabilize.
此类句式能体现考生对数据逻辑的分析能力，符合雅思写作“任务完成度”的高分要求。
数据幅度精准描述
预计趋势常伴随具体数值或范围，以下表达可提升精确度：
数值区间
- rise by approximately X%（增长约X%）
- 例句：Electric vehicle sales are expected to rise by approximately 30%.
- fluctuate between X and Y（在X与Y之间波动）
- 例句：Oil prices might fluctuate between $70 and $90 per barrel.
趋势强度修饰词
- significantly（显著地）
- 例句：Demand for healthcare will likely increase significantly.
- marginally（略微）
- 例句：Rural populations may decline marginally.
图表类型适配技巧
线形图（Line Graph）
重点描述未来延伸段的斜率变化：
- The upward/downward trajectory is set to continue.
- A sharp plunge is anticipated after 2035.
柱状图（Bar Chart）
对比不同类别的预测差异：
- Category A is likely to overtake Category B in the final year.
- The gap between X and Y will probably narrow.
表格（Table）
突出极值或转折点：
- By 2050, the figures for X are forecasted to peak at...
- Y is projected to remain the lowest among all categories.
常见错误与修正
-
混淆时态
- 错误：The graph showed that sales will increase.
- 正确：The graph shows that sales are expected to increase.
-
过度主观
- 错误：I think the economy will collapse.
- 正确：Economic indicators suggest a potential downturn.
-
重复词汇
- 单调：The population will increase... The demand will increase...
- 优化：The population is projected to grow, while demand may surge.
实战例句整合
以下为完整段落示范，结合多种表达方式：
The line graph illustrates past and projected carbon emissions in three regions. From 2025 onwards, emissions in Region A are expected to decline steadily, dropping by nearly 40% by 2040. In contrast, Region B’s emissions might plateau, with a marginal increase of 5% predicted. Assuming current policies hold, Region C will likely experience the most dramatic surge, potentially doubling its output within 15 years.
这种写法既涵盖预测词汇，又通过对比和条件句增强逻辑性。
在备考过程中，建议考生整理个性化表达库，针对不同图表反复练习，官方评分标准强调“自然且准确”的语言使用，因此避免生硬套用模板，而应灵活组合句式。
雅思小作文的预测部分并非单纯考察词汇量，而是检验考生能否用恰当语言呈现数据逻辑，通过系统训练,即使是基础学习者也能在短期内掌握核心技巧。
