山西省朔州市怀仁市第九中学高中部2023-2024学年高二上学期11月期中英语试题

山西省朔州市第九中学高中部2023-2024学年 高二上学期期中英语试题 注意事项： 1.答卷前，考生务必用黑色字迹钢笔或签字笔将自己的姓名、准考证号和班级填写在答题卡上。将条形码横贴在答题卡右上角“条形码粘贴处”。 2.全部答案在答题卡上完成，答在本试题上无效。 3.回答选择题时，选出每小题答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案用0.5mm的黑色笔迹签字笔写在答题卡上。 4.考试结束后，将本试题和答题卡一并交回。 一、阅读理解(共16小题；每小题3分，满分48分） A A new electronic bandage(绷带) uses flashes of light to kill bacteria. No antibiotics(抗生素) needed. The bandage has small LED bulbs that produce a type of high-energy light called ultraviolet-C (UVC) when it is put into use. UVC light is often used by doctors and dentists to sterilize(消毒) medical equipment. However, using UVC to sterilize wounds has been a challenge because it requires a source of energy. Typically, these bandages needed heavy batteries, but the new bandage is powered by wireless technology, without the need for heavy batteries. This allows the bandage to be more comfortable and flexible to wear and results in fewer used batteries in the trash. The electricity for the bandage comes from a “powering coil(线圈),”which is a piece of fabric with copper wires in it. It is similar tọ how electric toothbrushes get their energy when placed in their charging cradles, according to Stephen Beeby, who led the team that created the bandage. While the team didn't invent wireless power or light-emitting bandages, they are the first to combine these technologies to create a UV antibacterial system that operates entirely wirelessly, as explained by Mahmoud Wagih, a co-worker of Beeby. The bandage may not look novel from the outside, but inside it contains a flexible strip with tiny LED lights that emit the UV light. When applied, the bandage periodically flashes UV light onto the wound's surface to effectively remove hidden bacteria. Amirhossein Hajiaghajani, a wireless power researcher, sees potential in this band age but notes some challenge for its widespread use. The bandage needs to be within a certain range of its wireless energy source, the powering coil, which is currently about 20 to 3