On the morning of October 29, a train left the platform in Wuhan and did something no train there had ever done: it kept going, and hours later it came back to the same place. The second part of Metro Line 12 opened that day, and with it a loop of 59.9 kilometres and 37 stations was complete. Wuhan is now home to the longest subway circle in Asia. A full trip around it takes about 96 minutes.
Wuhan has an unusual shape. The Yangtze and the Han rivers cut the city into three parts, Wuchang, Hankou and Hanyang, and people who live on one side often work on the other. For years, crossing a river in the morning was the hardest part of the day. Line 12 changes that picture, because all 37 stations are underground and the line sits in seven central districts at once. It also meets the city’s two main railway stations, so a traveller can change from a main line train to the subway without leaving the building.
Building the circle was not simple. The tunnels pass under the Yangtze twice and under the Han once, and workers had to deal with high water pressure and mixed soil layers. The trains run automatically at the highest grade of driverless operation. In the morning a train wakes itself and leaves the garage; at night it plans its own way back and goes to sleep. During the day it can change how often it comes and pick a safe path when something goes wrong.
A circle looks like a small change on a map, but it changes how a city feels. A trip that needed two changes now needs one, and a district that was far from the centre becomes easy to reach. Wuhan now has 581 kilometres of rail and 351 stations, and trains here already carry more than 70 percent of all public transport trips. The circle does not make the rivers disappear. It simply makes them matter less.
Words to know:
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loop (环线；环形)
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district (城区；行政区)
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tunnel (隧道)
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pressure (压力)
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automatic (自动的)
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garage (车库；车辆段)
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trip (行程；一趟)
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disappear (消失)
长难句拆解 · 冒号后用完整句解释 + 省略 that 的定语从句
原句：On the morning of October 29, a train left the platform in Wuhan and did something no train there had ever done: it kept going, and hours later it came back to the same place. 主干：a train left the platform and did something 拆解：① no train there had ever done 是定语从句，修饰 something，关系代词 that 被省略；② 冒号后面 it kept going … came back 是对 something 的具体解释，是另一个完整句子；③ left 与 did 两个并列谓语共用主语 a train。 直译：10 月 29 日早晨，一列列车驶离武汉的站台，做了一件那里从没有列车做过的事：它一直往前开，几小时后回到了同一个地方。
[!info]- 长难句拆解 · because 原因从句 + at once 的「同时」义 原句：Line 12 changes that picture, because all 37 stations are underground and the line sits in seven central districts at once. 主干：Line 12 changes that picture 拆解：① because 引导原因状语从句，从句内部用 and 连接两个并列分句；② at once 在这里不是「立刻」，而是「同时」，修饰 sits，是四六级常见的熟词僻义；③ that picture 回指前一句描写的跨江通勤困境。 直译：12 号线改变了那幅图景，因为全部 37 座车站都在地下，而且这条线同时穿过七个中心城区。
同义替换 · 雅思阅读利器
同一意思换个说法，是雅思阅读和写作最省力的提分点。先看左边，再自己想右边：
- it kept going → it went on / it continued to run（动词短语替换，说明可以换成同义的短语动词）
- Wuhan is now home to the longest subway circle in Asia → the city now holds the biggest loop in Asia（主句改写，说明 be home to 与 hold 可互换）
- people who live on one side often work on the other → many residents cross the river for work（具体化转述，说明定语从句可压缩成一个动词短语）
- the hardest part of the day → the most difficult moment / the toughest stretch（程度词替换，说明 hardest 与 toughest 同义）
- Building the circle was not simple → the project was far from easy / it was no small task（否定式改写，说明 not simple 与 far from easy 等价）
- The trains run automatically at the highest grade of driverless operation → the trains drive themselves with no one in the cab（术语解释，说明抽象的等级描述可换成具体画面）
- a district that was far from the centre becomes easy to reach → an outer area turns into a short ride（视角转换，说明距离可从地理改到时间）
阅读自测 · 3 题
- 判断正误：Line 12 is the longest subway loop in the world. 请写 T / F / NG。
- 简答：How long does it take to travel all the way around Line 12?
- 选词填空：The line connects seven central ______ and two main railway stations.（districts / garages / tunnels）
参考答案与解析
1. F。原文说 the longest subway circle in Asia，只限定在亚洲。选项把「亚洲最长」偷换成「世界最长」，这是典型的范围偷换，比直接写错更难看出来。 2. About 96 minutes. 对应 A full trip around it takes about 96 minutes。答题要带上 about，原文并没有给出精确值。 3. districts。garage 指车辆段，tunnel 是隧道，都与「中心城区」无关。这类题常用三个词里只有一个语义通顺来设陷阱。
中文译文
10 月 29 日早晨，一列列车驶离武汉的站台，做了一件那里从没有列车做过的事：它一直往前开，几小时后回到了同一个地方。当天，地铁 12 号线二期开通，一条全长 59.9 公里、设 37 座车站的环线就此合拢。武汉由此拥有了亚洲最长的地铁环线。绕行一圈大约需要 96 分钟。
武汉的地形很特别。长江和汉江把这座城市分成武昌、汉口、汉阳三块，住在一岸的人常常要到另一岸上班。多年来，早高峰过江是一天里最难熬的一段。12 号线改变了这幅图景：全部 37 座车站都在地下，一条线同时穿过七个中心城区。它还衔接市里两大铁路枢纽，旅客下了干线列车不必出站就能换乘地铁。
修这条环线并不轻松。隧道两次下穿长江、一次下穿汉江，建设者必须应对高水压和复合地层。列车以最高等级的自动驾驶运行：清晨自己唤醒后驶出车库，深夜自己规划路线回库进入休眠。白天它能调整发车间隔，遇到突发情况还能自主选择安全路径。
在地图上，一个圆圈看起来只是小小的变化，但它改变了一座城市的感觉。原先要换两次车的行程现在换一次就够，以前离市中心很远的城区变得容易到达。武汉轨道交通如今已有 581 公里、351 座车站，承担了全市七成以上的公共交通出行。环线并不能让两条江消失，只是让它们没那么重要了。