The line graph below shows the projected percentage of residents aged 65 or above in three Vietnamese localities from 2020 to 2070. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

搭配词汇

考官点评

• TR“Overall, the percentage of older people is expected to rise in all three places over the fifty years, and Can Tho is expected to always have the highest percentage.” — Covers the main projected trend and identifies the leading locality, meeting the basic overview requirement, but leaves out the crossover between Hanoi and Ho Chi Minh City that the detail paragraphs go on to describe.涵盖了主要的预测趋势并指出了领先地区，满足了总览句的基本要求，但未提及河内与胡志明市之间后文将描述的交叉现象。
• LR“but both are also expected to grow a lot” — Functional but repetitive vocabulary ("grow a lot" echoes "rise"/"increase" used earlier) instead of varied verbs for growth.词汇可行但重复（"grow a lot" 与前文使用的 "rise"/"increase" 意思重复），而非使用多样化的增长动词。
• CC“This shows that the order of the two cities changes over time, even though Can Tho always stays highest.” — A simple concluding sentence links back to the overview using "even though", but the paragraph as a whole depends on basic connectors ("but", "and") rather than more precise cohesive devices.结尾句使用 "even though" 与总览句相呼应，但整段仍主要依赖基础连接词（"but"、"and"），而非更精确的衔接手段。
• GRA“Ho Chi Minh City grows faster than Hanoi at first, but later Hanoi's percentage increases more quickly and becomes higher than Ho Chi Minh City's by the end of the period.” — A grammatically correct compound sentence joined with "but... and", accurate but structurally simpler than the subordinate clauses used at higher bands.语法正确的并列句，用 "but... and" 连接，表达准确，但结构比高分答案中使用的从属分句简单。

搭配词汇

考官点评

• TR“Overall, the elderly population is projected to increase in all three localities over the fifty-year period, with Can Tho forecast to remain the highest throughout while Hanoi and Ho Chi Minh City follow lower, closely matched trajectories.” — A well-formed overview that also hints at the coming crossover by flagging the two smaller cities as "closely matched", functioning similarly to the 7.5 answer's dedicated crossover sentence but folded into one clause instead of stated outright.结构完整的总览句，同时通过将两个较小城市描述为 "closely matched" 暗示了即将出现的交叉现象，功能上与7.5分范文专门的交叉句类似，但被压缩进了一个分句，而非直接明说。
• LR“Hanoi's growth then accelerates” — A precise, dynamic verb choice for describing a change in growth rate, though the answer does not reach for the more interpretive noun phrase ("long-standing outflow of young workers") that the 7.5 answer uses to explain Can Tho's lead.描述增速变化时精准而富有动感的动词选择，但该答案未能像7.5分范文那样使用更具解释性的名词短语（"long-standing outflow of young workers"）来解释芹苴领先的原因。
• GRA“though both are forecast to expand substantially over the period, reaching 27% and 25% by 2070” — A concessive "though" clause combined with a participial phrase packs two pieces of information into one sentence, showing reasonable grammatical range, though less complex than the 7.5 answer's combination of connector plus two parallel participial phrases.让步从句 "though" 与分词短语结合，在一句话中容纳了两条信息，展示了较为合理的语法能力，但复杂度不及7.5分范文中连接词加两个并列分词短语的组合。
• CC“Interestingly, the two smaller localities do not grow at the same pace throughout.” — This topic sentence pivots the report from the general pattern to the specific crossover, playing the same cohesive role as the 7.5 answer's equivalent sentence but with a simpler discourse marker ("Interestingly" rather than a structured "While... their trajectories cross").该主题句将报告从一般规律转向具体的交叉现象，发挥了与7.5分范文对应句子相同的衔接作用，但使用的话语标记更简单（用 "Interestingly" 而非结构化的 "While... their trajectories cross"）。

搭配词汇

考官点评

• TR“Overall, a marked rise in the elderly population is forecast for all three Vietnamese localities over the fifty-year period.” — A concise overview sentence stating the dominant projected trend before any figures are introduced.简洁的总览句，在引入具体数据前先说明了主要的预测趋势。
• LR“a pattern linked to its long-standing outflow of young workers to bigger cities” — A sophisticated noun phrase ("long-standing outflow") is used to interpret the data rather than merely describe it, extending the overview naturally.使用高级名词短语 "long-standing outflow" 对数据进行了解读而非单纯描述，自然地延伸了总览句。
• GRA“however, Hanoi's pace of increase soon outstrips its southern counterpart, climbing from 18% in 2050 to 27% in 2070 and overtaking Ho Chi Minh City at around 2057” — A long sentence combining a contrastive connector, present-tense narrative description, and two parallel participial phrases shows wide grammatical range.长句中结合了转折连接词、现在时态叙述以及两个并列分词短语，展示了广泛的语法能力。
• CC“While both remaining localities show consistent growth, their trajectories cross partway through the period.” — This sentence cohesively pivots the paragraph from the general pattern to the specific crossover event described next.该句承上启下，将段落从一般性规律自然过渡到接下来描述的具体交叉事件。
• TR“Ho Chi Minh City's growth is comparatively gradual in the final two decades, rising by only 6 points, from 19% to 25%, over the same twenty-year span” — Accurately isolates and quantifies a sub-trend (slower growth in the final decades) that supports the overview's crossover claim.准确提炼并量化了一个次要趋势（最后几十年增速放缓），支持了总览句中提到的交叉现象。