柱图 (Bar Chart) - 分类对比

柱图用于展示不同类别之间的数据对比，是 Task 1 的核心图表类型。

柱图特点

• 展示分类数据的比较
• 可以是单组或多组对比
• 可以是静态（一个时间点）或动态（多个时间点）

核心词汇

1. 比较表达

2. 排序描述

高分句式

描述最大/最小

• The most popular activity was swimming, chosen by 60% of respondents.
• Japan recorded the highest figure at 500 million.
• The least common choice was cycling, with only 5%.

倍数比较

• The US consumed approximately twice as much energy as China.
• Exports were three times higher than imports.
• At 80%, A was more than double the figure for B (35%).

分组对比

• In Group A, sales reached 100, whereas Group B managed only 60.
• Men showed a clear preference for sports (70%), while women favored reading (65%).
• The figures for France and Germany were similar, at 45% and 43% respectively.

表示差异

• There was a significant disparity between urban and rural areas.
• The gap narrowed / widened over the period.
• A and B were almost equal, with only a marginal difference.

范文结构

开头段

The bar chart compares the average monthly spending on entertainment by people in five different age groups in 2020.

概述段

Overall, young adults spent the most on entertainment, while the elderly spent the least. There was a clear inverse relationship between age and entertainment expenditure.

细节段（按排序分组）

The 18-25 age group recorded the highest expenditure, at approximately $200 per month. This was followed by those aged 26-35, who spent around $150. By contrast, people over 65 spent the least, averaging only $50 monthly.

写作策略

单组柱图

1. 从高到低或从低到高排序描述
2. 突出最高值和最低值
3. 比较相似或差异显著的类别

多组柱图（如不同年份）

1. 先按时间段分组
2. 在每组内比较类别
3. 或者按类别分组，描述其变化趋势

[!TIP] 柱图的关键是筛选——不必描述每一根柱子，而是找出最重要的对比和规律。