With the world becoming warmer because of climate change, mosquitoes are busy enlarging their living space. Now, a Chinese company has created a new device which can detect mosquitoes and then kill them. The device promises a future in which the peace and quiet of a summer evening is no longer broken by flying mosquitoes.

The small, light device uses AI to discover mosquitoes as small as 2 millimeters (毫米). Within 0.003 seconds, it fires a high-energy laser (激光) that disables a mosquito midflight — a course that can hardly be seen by humans — and can kill up to 30 mosquitoes every second.

The Chinese device is not alone in mosquito control. The Locus, which is made by a foreign company, uses computers to locate (定位) mosquitoes indoors. However, while the Locus focuses on location, the Chinese device goes a step further by killing mosquitoes.

It is not easy to improve the accuracy rate (准确率). The early models of the Chinese device failed to correctly discover mosquitoes within a short distance, as they were influenced by background noise. After years of hard work, careful research and countless tests, the company put AI and laser technology together, enabling a discovery rate of over 95 percent within six meters.

According to the World Health Organization (WHO), there are over 3,500 kinds of mosquitoes in the world. About 200 kinds can spread diseases. Every year, mosquitoes kill more than 700,000 people. Millions of people face this risk every day. This new Chinese device provides a safe and effective way to fight mosquitoes and protect people’s health.

1.1. What does the underlined word "detect" in Paragraph 1 most probably mean?

A Warn.

B Blow.

C Watch.

D Discover.

解析：选D。D. 词义猜测题。detect 出现在首段第二句 "a new device which can detect mosquitoes and then kill them"（一种可以 detect 蚊子然后将其杀死的装置）。根据语义逻辑，装置先 "发现 / 探测" 蚊子再击杀，故 detect 意为 "发现、探测"，与 discover（发现）同义。A warn（警告）、B blow（吹）、C watch（观看，侧重注视但无 "找到" 之意）均不符。此题考查利用句内逻辑（动作先后关系）推断词义。

2.2. How does the writer prove the effectiveness of the device in Paragraph 2?

A By telling a story.

B By listing numbers.

C By making comparisons.

D By using experts’ words.

解析：选B。B. 细节理解题。第二段集中出现一系列精确数字："as small as 2 millimeters"（小至 2 毫米）、"Within 0.003 seconds"（在 0.003 秒内）、"kill up to 30 mosquitoes every second"（每秒最多杀死 30 只），用具体数据直观说明装置的灵敏度和杀伤力，故答案为 B。A、D 文中无对应；C 虽然后文有与 Locus 的比较，但发生在第三段而非第二段，属干扰项。此题考查识别说明文常用写作手法的能力。

3.3. What is an advantage of the Chinese device over the Locus?

A Killing mosquitoes after location.

B Focusing on mosquitoes outdoors.

C Finding mosquitoes in a short time.

D Using AI to drive mosquitoes away.

解析：选A。A. 细节理解题。第三段明确对比："while the Locus focuses on location, the Chinese device goes a step further by killing mosquitoes"（Locus 专注于定位，而中国装置更进一步，将蚊子杀死），即中国装置的优势是在定位的基础上再完成击杀，对应 A 项。干扰项辨析：B"户外" 与原文 Locus"locate mosquitoes indoors"（室内定位）不符；C"短时间内发现蚊子" 是两者共有的能力，非相对优势；D"驱赶" 与原文 "killing"（杀死）相悖。此题考查对比较关系的把握，需注意题干中的 "over the Locus"（相对于 Locus）。

4.4. What does Paragraph 4 mainly talk about?

A How the device was tested.

B The influence of noise on accuracy.

C How AI was used in the device.

D The road to a high accuracy rate.

解析：选D。D. 主旨大意题。第四段围绕 "提高准确率" 展开：首句点题 "It is not easy to improve the accuracy rate"（提高准确率并非易事），随后讲早期型号受噪音影响而失败、经过多年努力终获成功（发现率超 95%），完整呈现了 "高准确率的艰难实现过程"，故 D 项概括最全面。干扰项辨析：A"如何测试" 只是过程中的细节；B"噪音的影响" 只是困难之一，以偏概全；C"AI 的运用" 未提及研发过程，同样片面。此题考查段落主旨归纳，关键是抓住段首中心句。

5.5. What can we learn from the last paragraph?

A Most mosquitoes are dangerous.

B The Chinese device is of great use.

C Mosquitoes around us have been controlled.

D The Chinese device is praised by the WHO.

解析：选B。B. 推理判断题。最后一段先用 WHO 数据说明蚊子的危害（3500 多种、200 种传播疾病、每年致 70 万 + 人死亡），再点明 "This new Chinese device provides a safe and effective way to fight mosquitoes and protect people's health"（这种中国新装置提供了安全有效的灭蚊方式，保护人们健康），正是为了突出装置价值之大，故 B 正确。干扰项辨析：A"大多数危险" 与原文 "约 200 种能传播疾病"（占比仅约 6%）矛盾；C"已被控制" 文中无依据；D"受 WHO 赞扬" 属无中生有 ——WHO 只提供蚊子危害数据，未评价该装置。此题考查依据事实进行合理推断、排除过度推断的能力。