A Song Played by a Hand That Could Not Move
For four years, a woman in Wuhan could not use her right hand. A brain tumour had left her right arm and leg weak, and she could hardly hold anything. In October, doctors showed a video that surprised many people: she sat at a small keyboard and played a simple children’s song with the fingers of that same hand.
The woman, aged thirty-nine, is the first patient to try a new system built by a team at Wuhan Union Hospital. She wears a cap that reads the signals her brain sends. When she thinks about moving a finger, a computer works out what she means. Small pads placed on her arm then send a gentle electric current, which tells the muscle to contract. The finger moves.
Doctors describe the process as a closed loop, because the patient also feels the movement and can correct it. The order is always the same: read the thought, send the current, move the muscle, finish the action, and feel the result. In this way, the machine builds a bridge around the damaged nerve and lets the order from the brain reach the fingers again.
Until now, most work in this field trained patients to open the whole hand or lift the wrist. Single fingers are much harder, because each one needs its own signal, and the pads must be placed with great care. That is why the new system is called a step forward: it aims at the small movements that make daily life possible, such as buttoning a shirt or holding a pen.
The training is slow and the equipment is not cheap, and the system is still being tested in hospital. Doctors also say that payment rules and staff training must be settled before such care can reach more people. Even so, the short song is more than a clever trick. It points to a future in which a machine can carry a message that a broken nerve no longer can.
Words to know:
- tumour (肿瘤)
- signal (信号)
- current (电流)
- muscle (肌肉)
- contract (收缩)
- nerve (神经)
- loop (回路；循环)
- equipment (设备)
长难句拆解 · 原因状语从句与后置定语
第一句：Single fingers are much harder, because each one needs its own signal, and the pads must be placed with great care. 主干是 Single fingers are much harder，much 用来加强比较级。后面 because 引导原因状语从句，而这个从句本身由 and 连接了两个并列分句：each one needs its own signal 和 the pads must be placed with great care。第二个分句用了被动语态，因为重点是「电极必须被小心放置」这件事本身。遇到这种「主句很短、从句很长」的句子，先把主句的意思拎出来，再依次补上原因。 直译：单根手指要难得多，因为每一根都需要自己的信号，而且电极必须非常小心地放置。
第二句：Small pads placed on her arm then send a gentle electric current, which tells the muscle to contract. 主干是 Small pads send a current。placed on her arm 是过去分词短语作后置定语，修饰 Small pads，相当于省略了 which are。逗号后的 which 引导非限制性定语从句，指代整个前面的内容或 current 这个东西，说明电流的作用。非限制性定语从句只是补充信息，删掉后主句依然完整，这一点和限制性定语从句不同。 直译：贴在她手臂上的小垫片随后发出温和的电流，电流让肌肉收缩。
同义替换 · 雅思阅读利器
雅思阅读的题干很少照抄原文，它更喜欢把同一个意思换一种说法。下面这些替换在本题材里很常见，先自己盖住右边，试着回忆。
- could not use her right hand → her right hand no longer worked（病情描述的改写）
- reads the signals her brain sends → picks up what the brain is saying（读取脑信号的释义）
- works out what she means → decides what she wants to do（解码意图的替换）
- builds a bridge around the damaged nerve → carries the order past the broken part（绕过受损神经的释义）
- aims at the small movements → focuses on fine actions（精细动作的改写）
- the equipment is not cheap → the machines cost a lot（成本高昂的替换表达）
- a machine can carry a message that a broken nerve no longer can → technology takes over what the body cannot do（结尾金句的改写）
阅读自测 · 3 题
- 判断正误：The woman in the story regained the full use of her right hand at once.
- 简答：What is placed on the patient’s arm to make a finger move?
- 选词填空：In the closed loop, the patient can feel the movement and ____ it. (A. correct B. ignore C. repeat)
参考答案与解析
- False（错误）。原文说经过近两个月训练她已能完成手指屈伸，且明确指出 The training is slow，末段还强调系统仍在医院测试中。题干用 at once 把「缓慢训练后部分恢复」偷换成「立刻完全恢复」，「偷换程度与时间」是最常见的干扰套路。
- Small pads that send a gentle electric current.（会发出温和电流的小垫片。）原文为 Small pads placed on her arm then send a gentle electric current, which tells the muscle to contract，定位 placed on her arm 即可。
- A. correct。原文为 the patient also feels the movement and can correct it。B 的 ignore 与闭环反馈的原理相反、C 的 repeat 在文中并未提及，属「偷换动作」的干扰项。
中文译文
四年来，武汉的一位女士一直无法使用自己的右手。一个脑部肿瘤让她的右臂和右腿变得无力，她几乎握不住任何东西。今年十月，医生公开的一段视频让许多人感到意外：她坐在一架小小的电子琴前，用同一只手的几根手指弹出了一首简单的儿歌。
这位女士三十九岁，是武汉协和医院一个团队研发的新系统的首位受试者。她戴着一顶采集大脑信号的帽子。当她想动某一根手指时，计算机会判断出她的意图。随后，贴在她手臂上的小垫片发出温和的电流，让肌肉收缩。手指就这样动了。
医生把这一过程称为闭环，因为患者同时能感受到动作并可以纠正它。顺序始终不变：读取意念、发出电流、让肌肉收缩、完成动作、感受结果。通过这种方式，机器在受损的神经周围搭起一座桥，让大脑的指令重新抵达手指。
在此之前，这一领域的大多数研究都只是训练患者张开整只手或者抬手腕。单根手指要难得多，因为每一根都需要自己的信号，而且电极必须非常小心地放置。正因如此，新系统被称为一次进步：它瞄准的是让日常生活得以维持的那些小动作，比如扣衬衫纽扣或者握笔。
训练很慢，设备也不便宜，这套系统仍在医院里接受测试。医生还表示，在让更多患者用上这类治疗之前，支付规则和人员培训都必须先落实。即便如此，这首短短的曲子也不只是一种聪明的技巧。它指向了这样一个未来：神经已经无法传递的信息，可以由机器来传递。