英瑞意葡的人均二氧化碳排放Carbon dioxide emissions per person in the UK, Sweden, Italy and Portugal

In general, the UK consistently accounted for the highest CO 2 emissions per capita, although its figures declined steadily. In contrast, Italy and Portugal started with relatively low levels of average CO 2 emissions, but witnessed clear upward trends.

概述清楚抓住英国最高及意葡上升两组主要特征。

Italy’s per-person emissions increased steadily from about 4 tonnes in 1967 to almost 8 tonnes by 2007.

起止值大体合理，但steadily覆盖整个时期，未反映1997年后的平台。

climbed to a peak of nearly 11 tonnes in the mid-1970s

图中瑞典最高观测点在1977年、略高于10吨，此处时间和数值偏粗。

图上英国红线始终最高，约10.7吨降至8.7吨；瑞典绿线1977年约10.2吨达到峰值，之后降至约5.3吨；意大利蓝线约4.2升至7.5吨，1997至2007年水平；葡萄牙橙线约1升至5.5吨，最终与瑞典很接近。

This figure fell gradually throughout the period, reaching roughly 9 tonnes by 2007. Sweden followed a different trajectory:

This figure准确承接英国起点，随后显式转入瑞典的不同轨迹。

After that, the number dropped sharply, falling to just over 5 tonnes by the end of the period.

时间指示自然承接瑞典峰值，终点与起点的关系清楚。

Italy and Portugal, on he other hand, showed broadly similar trends, although the scale differed.

下一段先建立两国共同走向和规模差异，再给各国数据；拼写笔误不影响段落关系。

Sweden followed a different trajectory: its per capita CO 2 release began at about 9 tonnes and climbed to a peak of nearly 11 tonnes in the mid-1970s.

trajectory、per capita与climbed to a peak提供自然且多样的图表表达；数据粗略的问题归入任务维度。

on he other hand

固定词组漏写the中的t，属于局部拼写问题。

After that, the number dropped sharply

number用于连续的排放量不如figure或emissions精确，但表达仍清楚。

In 1967, an average person in the UK emitted around 11 tonnes of CO 2 , which was far higher than the figures in other countries.

时间状语、非限制性定语从句及比较结构结合，主从关系清楚。

Portugal, which started at only around 1 tonne per person, experienced the fastest growth, reaching approximately 5 tonnes of CO 2 emissions per person by 2007.

插入关系从句与结果分词结构准确，长句控制良好。

Italy and Portugal, on he other hand, showed broadly similar trends, although the scale differed.

让步结构准确，局部he是拼写问题而非句法失控。