《2025年红对勾高考一轮复习金卷英语》

Test 3（2024·贵州遵义第二次模拟）
For the critically endangered Irrawaddy dolphin, fishing equipment is a deadly threat to their lives. In Indonesia’s Mahakam River, two - thirds of dolphin deaths in the past 25 years were drownings caused by being trapped in fishing nets. Now a relatively inexpensive and practical electronic device known as Pinger shows promise for preventing dolphins from becoming trapped. These underwater noisemakers have been used to protect various marine life, but this is the first time they’ve been proven effective at protecting freshwater dolphins.
The small sound device, about the size of a banana, is attached to a fishing net and sends out a pulsing noise (脉冲噪声) that annoys the dolphins but doesn’t harm them. Dolphins are capable of avoiding the nets, being scared of trying to seize fish from them, and can therefore feed and swim more safely in their habitat. Fishers’ nets, meanwhile, sustain less damage and this can make fishers control the cost.
Pingers are lucrative to fishers’ livelihoods. A six - month study, led by conservation organization Yayasan Konservasi RASI and supported by WWF, recently revealed that fishers who used the devices saw a 40% increase in their daily catch—an additional 350 to 500 pounds of fish—and tended to catch larger fish, thus increasing their profits.
Approximately 80 Irrawaddy dolphins live in the Mahakam River. Small populations are found in the Mekong and Ayeyarwady rivers, where, in addition to being trapped by the fishing nets, they’re impacted by the worsening habitat, unsustainable fishing practices, as well as water pollution.
During the study, the reduction in dolphin bycatch was significant. 100% of participating fishers kept using the devices after the trial ended, which proves that the action of using the device to protect dolphins from being harmed or killed is becoming effective.
9. Why is the underwater sound device applied?
A. To examine the health of dolphins.
B. To scare fish away from dolphins.
C. To decrease noise around dolphins.
D. To keep dolphins safe from fishing nets.
10. What does the second paragraph mainly talk about?
A. Pinger’s efficiency.
B. Pinger’s working principle.
C. Pinger’s limitations.
D. Pinger’s working conditions.
11. What does the underlined word “lucrative” in paragraph 3 mean?
A. Sensitive.
B. Familiar.
C. Risky.
D. Beneficial.
12. What can be inferred from the last two paragraphs?
A. Further research will be carried out.
B. The number of dolphins may increase.
C. Dolphins will move to new habitats.
D. All fishers have employed the devices.

答案： 9. D 10. B 11. D 12. B