B
KEY→P43
范畴:人与社会 主题:技术创新 体裁:新闻报道 难度:★★★★ 建议用时:6分钟 评价:/5
热考素材 时事热点 A Chinese research team has developed a
new stretchable and flexible microelectrode(可拉伸且灵活的微电极）
for brain-computer interfaces（BCI 脑机接口). Traditional flexible
electrodes often move or pull away from brain tissue(组织) during
the natural brain activity, causing signal loss and tissue damage.

This new electrode can follow brain movements, solving a long-standing problem in invasive(侵入式) BCI technology. It provides a more dependable way to record signals from the brain over a long period.
The research, led by Fang Ying from the Chinese Institute for Brain Research, Beijing, was published in the magazine *Nature Electronics*. The idea came from problems found in earlier animal experiments. Researchers found that common flexible electrodes easily pulled back because of brain motion. This problem attracted wider attention in 2024, when around 85 percent of the electrodes used in a human test by Neuralink failed within weeks—they could bend but not stretch(伸展) with the brain's natural activity.
英语嗨吧
Traditional electrodes cannot fit in with the brain's continuous movement. They may move out of place, reduce signal quality, or pose health risks to brain tissue. This has made long-term stable BCI use difficult and limited its real-world applications.
The new electrode has a special spiral(螺旋形的) design. It is very thin and soft, and can stretch and bend with the brain instead of pulling away. It requires much less force than traditional electrodes, greatly reducing harm to brain tissue. Its special structure allows it to move smoothly without damaging neural cells(神经细胞).
Tests on monkeys showed that the device could stably record neural signals over a long period. Researchers also successfully placed a 1,024-channel electrode that is like Neuralink's product, which showed that it could record good and clear signals well. This result shows the technology is ready for further research.
BCI technology builds a direct link between the brain and machines and is very important for combining human and artificial intelligence. China pays attention to BCI development and has included it in national planning. This means strong support for key future technologies and will help China take the lead in the BCI industry in the world.
()1. 新考法·行文方式 How does the writer start the passage?
A. By telling a touching real story.
B. By introducing a new invention.
C. By comparing different devices.
D. By asking an interesting question.
()2. Why did the researchers start to develop the new microelectrode?
A. To win a world prize in new technology.
B. To take the place of all traditional electrodes.
C. To deal with problems from earlier experiments.
D. To make brain operations much quicker and safer.
()3. What is one likely result of the successful monkey tests?
A. Monkeys will learn to speak English.
B. All old BCIs will have to be thrown away.
C. People will soon use the device in schools.
D. The technology may be ready for human trials.
()4. According to the last paragraph, what might happen next in China's BCI development?
A. Scientists will stop using animals for testing.
B. Traditional electrodes will disappear at once.
C. All hospitals will start using Neuralink's product.
D. More money and research may support BCI projects.
英语嗨吧
()5. What is the main idea of the passage?
A. China's long-term national planning.
B. Different tests on traditional electrodes.
C. The history of BCI technology development.
D. A new microelectrode for BCI and its importance.

中国团队研发出可随大脑运动的柔性脑机接口电极,解决传统电极易移位失效的问题,经动物实验验证效果优异。该技术意义重大,也得到国家层面的重点支持。
1. B 行文方式题。由首句"A Chinese research team has developed a new stretchable and flexible microelectrode for brain-computer interfaces."可知,文章以介绍新发明开头。
2. C 推理判断题。由第二段中"The idea came from problems found in earlier animal experiments."可知,研究人员开始研发新型微电极是为了解决早期实验中出现的问题。
3. D 推理判断题。由第五段中"This result shows the technology is ready for further research."可知,猴子试验成功后该技术可能已具备开展人体试验的条件。
4. D 推理判断题。由最后一段中"China pays attention to BCI development and has included it in national planning."可知,更多资金与研究或将助力脑机接口项目。
5. D 主旨大意题。全文围绕"新型可拉伸微电极解决了长期信号不稳定等问题"展开,强调其稳定性、安全性和应用前景。