雅思写作课程-第二十一课
This chart provides information about the number of households in the US by their annual income in 2007, 2011 and 2015.
Overall, the number of households in the US by their annual income has remained stable from 2007 to 2015, though the number of households which had $100,000 or more annual income increased 2011 onwards.
In the US, the number of households which had $100,000 or more annual income was the most in both 2007 and 2015. There were almost 30 millions households in 2007. The households who had $50,000 to $74,999 annual income was the least which were nearly 15 millions.
In 2011, this situation changed. Since the number of US households which had $25,000-$49,999 annual income was the majority. But the number of US households who had $50,000 to $74,999 annual income still the minority.
In 2015, the number of richest households peaked at around 35 millions. In the contrast, the number of US households who had $50,000 to $74,999 annual income still remained the same——still lowest at 15 millions. 检查以上的错误，告诉我如何改正
非常好 👍！你这篇文章的结构和逻辑都对（有清晰的 overall + 时间对比 + 分组分析），但是存在一些常见的语法、搭配和表达问题（冠词、从句、时态、名词复数、逻辑连接词等）。下面我会：
1️⃣ 给出一篇改正后的高分版本（Band 8.5）
2️⃣ 再逐句讲解哪里错、为什么错、怎么改
✅ 改正后的 Band 8.5 范文版本：
The chart provides information about the number of households in the US, classified by annual income, in 2007, 2011, and 2015.
Overall, the total number of households in the US remained relatively stable over the period. However, the number of households earning $100,000 or more rose steadily from 2011 onwards, while lower-income groups either declined or stayed almost the same.
In 2007, households earning $100,000 or above accounted for the largest group, at around 30 million, whereas those earning between $50,000 and $74,999 formed the smallest category, with approximately 15 million households.
By 2011, this pattern had shifted slightly. The number of households earning $25,000 to $49,999 became the highest among all groups, while those in the $50,000–$74,999 bracket remained the least numerous.
In 2015, the number of the wealthiest households peaked at about 35 million, showing a strong recovery after 2011. In contrast, the number of households earning $50,000 to $74,999 remained unchanged at around 15 million, continuing to represent the smallest proportion.
🧠 逐句讲解与修改原因
| 原句 | 问题 | 改正与解释 |
|---|---|---|
| provides information about the number of households in the US by their annual income | 搭配略笨拙 | ✅ classified by annual income 更正式自然（雅思官方报告常用） |
| has remained stable from 2007 to 2015 | ❌ 不合时态逻辑（描述已结束的时间段） | ✅ remained stable（一般过去时） |
| though the number of households which had $100,000 or more annual income increased 2011 onwards. | ❌ 缺介词；句式笨拙 | ✅ increased from 2011 onwards；并简化为“households earning $100,000 or more”更自然 |
| The households who had $50,000 to $74,999 annual income was the least which were nearly 15 millions. | ❌ 主谓不一致（households → were）；数字表达错误（million 不加 s） | ✅ “…were the fewest, at nearly 15 million.” |
| In 2011, this situation changed. Since the number of US households which had… | ❌ “Since” 不通顺；逻辑不连贯 | ✅ 改为 “By 2011, this pattern had shifted slightly.”（“pattern” 是高分词） |
| But the number… still the minority. | ❌ “minority” 用于人群比例，不适合这里；缺谓语动词 | ✅ “…remained the smallest group.” |
| In the contrast | ❌ 搭配错误 | ✅ “In contrast” 无需 “the” |
| still remained the same——still lowest at 15 millions | ❌ 冗余 + 语法错误 | ✅ “remained unchanged at around 15 million” 简洁自然 |
🌟 语法与写作要点总结
| 错误类型 | 正确写法 | 说明 |
|---|---|---|
| ❌ which had income $100,000 | ✅ earning $100,000 or more | IELTS 推荐用现在分词简化从句 |
| ❌ 15 millions | ✅ 15 million | “million/billion” 作数词单位时不加 s |
| ❌ has remained stable | ✅ remained stable | 时态错误（全是过去时间） |
| ❌ the contrast | ✅ in contrast | 固定短语 |
| ❌ the number of households who had… | ✅ households earning… | 简化句式，提升流畅度 |
✅ 一句总结：
你的版本逻辑正确，但语法细节和表达自然度拉低了分数。
改正后这篇能达到 Band 8.5–9（语法精确、搭配地道、句型多样）。
要不要我帮你把这篇进一步升级成 Band 9 完整范文（加入更多对比句式、趋势词、连接词）？
例如：“while… whereas…”, “accounted for”, “saw a moderate decline”等。这样你就能看到评分官眼中的完美 Task 1 写法。
has remained stable 和remained stable有什么区别
非常好的问题 💡！
👉 “has remained stable” 和 “remained stable” 都表示“保持稳定”，但它们的时态不同，语气上也有一些细微差别。
这在雅思写作 Task 1 里非常关键，因为选择哪种时态取决于时间是否结束。下面详细讲解👇
🧭 一、核心区别总结
| 表达 | 时态 | 适用情况 | 含义 |
|---|---|---|---|
| has remained stable | ✅ 现在完成时 | 时间段 延续到现在（或未结束） | 从过去某时开始一直保持稳定到现在 |
| remained stable | ✅ 一般过去时 | 时间段 已结束（明确过去） | 在过去某一时期内保持稳定 |
🎯 二、IELTS 图表写作中的区别
✅ 1️⃣ 用 remained stable ——（描述“过去的”时间段）
❌ has remained stable from 2000 to 2010.
✅ remained stable from 2000 to 2010.
🔹解释：
2000–2010 已经是一个 过去完成的时间段。
雅思 Task 1 里的数据通常都是历史数据（如 2000–2020），所以要用一般过去时。
📝 示例句：
The number of households remained stable between 2000 and 2010.
→ 2000 到 2010 期间数量保持稳定（这段时间已结束）。
✅ 2️⃣ 用 has remained stable ——（描述“持续到现在”的趋势）
✅ The population has remained stable over the past decade.
✅ The unemployment rate has remained stable since 2015.
🔹解释：
这里时间段包括现在（例如 “since 2015”, “over the past decade”）。
事件从过去开始 一直持续到现在，所以要用 现在完成时。
📝 示例句：
The inflation rate has remained stable since 2018.
→ 通胀率自2018年以来一直保持稳定（到现在仍是这样）。
🧩 三、对比例句（更直观）
| 场景 | 错误 | 正确 | 原因 |
|---|---|---|---|
| 数据 2000–2015 | ❌ It has remained stable from 2000 to 2015. | ✅ It remained stable from 2000 to 2015. | 时间已结束 |
| 数据 since 2010 | ❌ It remained stable since 2010. | ✅ It has remained stable since 2010. | 延续到现在 |
| 数据 1990s | ❌ The figure has remained unchanged in the 1990s. | ✅ The figure remained unchanged in the 1990s. | 明确过去的十年 |
| 最近十年趋势 | ❌ The number remained stable over the past decade. | ✅ The number has remained stable over the past decade. | “past decade” 包括现在 |
✨ 四、简单记忆法
🧠 时间线还“连着现在” → has remained
🧭 时间线已经“过去了” → remained
💬 小练习（你可以试试看）
判断下列句子用哪种更合适：
1️⃣ The population ____ stable between 1990 and 2000.
2️⃣ The unemployment rate ____ stable since 2012.
3️⃣ The number of households ____ stable over the past 10 years.
4️⃣ The percentage of users ____ stable from 1980 to 1995.
✅ 答案：
1️⃣ remained
2️⃣ has remained
3️⃣ has remained
4️⃣ remained
要不要我帮你做一份「时态选择专项练习题（雅思 Task 1 高频）」，专门练 has been / was / has remained / remained / has increased / increased 的区别？
这类题练熟了，时态错误能少掉一半。
第二篇
This diagram provides information about how fabric is manufactured from bamboo.
In spring, farmer should plant bamboo plants in the farmland. And farmer needs to harvest bamboo plants in autumn. This steps determin the quality of the final fibres.
The worker needs to cut bamboo into strips and crush strips to make liquid pulp. This step is for filter, the final steps to separate long fibres from liquid.
Finally, after add water and amine oxide then we will see soften fibres.
这是其他高分回答：
The given diagram describes the process of manufacturing bamboo fabrics.
Overall, the process includes a few main stages, which are showen on the diagram and are numbered from 1 to 8.
The first stage, obviously, consists of planting and growing bamboo plants, usually happening in spring.
The second phase, We could say harvesting one, is happening in the middle part of the year in autumn. Bamboo stems are cutting off by the season workers, collecting and sendening to the special plants during this period.
In the plants, what are showed a the third and the forth stages. on the diagram, the bamboo stems are cutting into long strips, then produced strips are crushing to make liquid pulp.
During the next phase these pulp is filtering through the special types of sieves to separate long fibres from liquid.
Then the fibres, filtered by previous step, are being undergone through the softenning procedure. This procedure includes adding water and amine oxide.
The seventh stage is the sppinning the soften fibres to make a strong bamboo thread.
Produced yarns might be used to make fabric, which is the last – eighth phase, by weaveing them using special equipment.