《2026年学易优高考二轮总复习英语》

B
(襄阳五中2025届高三下学期5月适应考)
The ability to detect a nearby presence without seeing or touching it may sound fantastical—but it’s a real ability that some creatures have. A family of African fish known as Momyrids are weakly electric, and have special organs that can locate a nearby target， even when it’s hiding in the mud. Scientists have now developed an artificial sensor system modeled on the ability of these fish.
“We developed a new strategy for 3D motion positioning by electronic skin， bio-inspired by ‘electric fish’，”says Dr. Xinge Yu， an associate professor in the Department of Biomedical Engineering at the City University of Hong Kong. The team described their e-skin sensor in a paper published on November 14 in Nature.
The artificial sensor is multi-layered. One layer acts as a transmitter， which will generate an electric field once activated， and another layer acts as a receiver to detect both the direction and the distance to an object. A separate controller creates the driving signal to activate the transmitter. When an object comes within range， the electric field around the sensor is disturbed， which in turn can be detected by the receiver. This data is then processed by a micro controller unit， which computes the position of the target object and sends that information to a smartphone or other devices.
A special biogel(生物凝胶) is used in the sensor， which has the ability to transmit and receive electric signals from a pattern of micro channels on the surface. The end result is a sensor that is thin， soft and flexible， making it easy to adapt to irregular surfaces， such as the human body. In contrast to the traditional sensor system that needs a large number of sensors to achieve spatial positioning， the new system can locate an object precisely in 3D space using just a few sensors. This significantly reduces the power consumption of data collection， transmission， and processing.
The researchers hope that this sensor could one day open up a new range of wearable technologies， including sensors for human-machine interaction and thin， flexible e-skin.
1. Why does the author mention African fish in the first paragraph?
A. To explain the reason for developing a sensor.
B. To illustrate the inspiration for a new invention.
C. To demonstrate the special ability of African fish.
D. To emphasize the big challenge of locating
objects.
2. What is the correct order of the system’s working procedures?
a. The transmitter creates an electric field.
b. A unit computes the position of the target.
c. The controller sends the activating signal.
d. The receiver detects the change of electric signals.
e. The electric field is disturbed by an approaching object.
A. c—a—e—d—b.
B. c—a—d—e—b.
C. a—c—e—d—b.
D. a—e—c—d—b.
3. What is the main idea of Paragraph 4?
A. Advantages of the new biogel sensor.
B. Process of making the biogel sensor.
C. Limitations of traditional sensors in 3D space.
D. Applications of the new sensor on human
body.
4. What is the best title for the text?
A. Machine Detective “Wears” Flexible E-skin
B. Bio-inspired Sensor “Feels” Without Touching
C. E-Skin Sensor： The Future of Machine Learning
D. Electric Fields： The Frontier of Object Detection

答案： 1.B 2.A 3.A 4.B