《2025年天星教育金考卷一轮复习单元滚动双测卷英语》

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[2025湖北重点高中智学联盟联考]Batteries are getting smaller, lighter and more powerful. Some personal electronics, such as fitness trackers that monitor health conditions or brain - computer implants that decode neural signals to control electronic prosthetic(义肢的) devices, require more close contact.
Being unable to flex as skin and tissue does make batteries both unreliable and uncomfortable to wear. A number of approaches are therefore being taken to produce flexible batteries, among which the most promising, though, are water - based batteries inspired by the way an electric eel(电鳗) stores its charge.
A group at the University of Cambridge has used the eel’s technique to come up with what it calls “jelly batteries”. These are made from hydrogels (水凝胶) that consist of organic polymers that contain over 60% water. Whereas most batteries experience a loss of conductivity if the material is bent or stretched, a jelly battery can be stretched up to one - and - a - half times its length with no power loss.
Jelly batteries work in much the same way that biological processes produce electricity. They rely on the different concentrations of electrically charged particles to create a difference in electrical potential, which in turn produces a electrical current. Tiny, though, jelly batteries can increase their output by being connected together.
Another feature of the jelly battery is that the strong molecular bonds that let the polymers stretch also allow the material to repair itself very quickly if it is broken. A Chinese research group has also found encouraging results with a self - healing hydrogel battery. They recently reported in Nano Research Energy that their battery could sustain a high level of bending and twisting, and even if broken ten times was still capable of self - healing.
Besides wearable and implantable devices, another potential market for stretchable batteries is soft robotics. For one thing, stretchy components would be safer to operate among people than the rigid parts of conventional robots. They could also help power prosthetic devices, such as gloves that allow stroke victims to move their hands. All this should provide plenty of ideas for wearable innovations.
1. What drives people to produce flexible batteries?
A. Popularity of wearable devices.
B. Inspiration from biological nature.
C. Limitations of traditional batteries.
D. Higher requirements for close contact.
2. What makes a jelly battery soft and flexible?
A. Its component.
B. Its conductivity.
C. Its shape.
D. Its concentration.
3. How can hydrogel batteries produce enough power?
A. Through biological processes.
B. Through connection in series.
C. By connecting a power source.
D. Through various amounts of charged particles.
4. What’s the best title for the text?
A. Jelly batteries: advantages, disadvantages and operation
B. Jelly batteries: safer, cheaper, smaller, more powerful
C. Self - healing “jelly batteries” work in human brains
D. Soft, stretchy “jelly batteries” inspired by electric eels

答案： 1.C　细节理解题。根据第二段中的“Being unable to flex as skin and tissue does make batteries both unreliable and uncomfortable to wear”可知，由于无法像皮肤和组织那样弯曲，电池既不可靠又佩戴起来不舒服，所以人们正在采取多种方法来生产柔性电池，这说明普通电池延展性差且无法穿戴的缺陷是促使人们研究柔性电池的原因。
2.A　细节理解题。根据第三段中的“These are made from hydrogels(水凝胶）that consist of organic polymers that contain over 60% water”可知，果冻电池柔软有弹性是因为它是由含水量超60%的有机聚合物组成，也就是说果冻电池的成分使其柔软有弹性。
3.B　细节理解题。根据第四段中的“Tiny, though, jelly batteries can increase their output by being connected together”可知，小巧的果冻电池可以通过连接在一起来增加其输出，也就是水凝胶电池可以通过串联增压。
4.D　标题判断题。
Para. 1：一些个人电子产品需要能与人体更亲密接触的电池
Para. 2：本文要呈现的中心内容——柔性电池
Paras. 3 - 4：柔性电池的工作原理
Paras. 5 - 6：柔性电池的优点及应用前景
根据全文内容及第二段中的“among which the most promising, though, are water - based batteries inspired by the way an electric eel (电鳗）stores its charge”可知，本文要介绍的是最有前途的受电鳗储存电荷方式启发的水性电池，文章由此展开，依次介绍了柔性电池的原理、特点和应用前景，特别是果冻电池的特点和潜在用途，因此，作者的目的是介绍可伸展和可穿戴的电池技术。