C
The ocean is not a quiet place. This is partly caused by sea animals. They use sound to find what they eat, who they play with, or which place they move towards. But the noise from human activities is increasingly troubling the lives of ocean animals.
According to scientists, loud noise may increase mass strandings(大规模搁浅) of sea animals. Researchers recorded only five of these events in the first half of the 20th century. From 1950 to 2004, they recorded more than 1,200 mass strandings. These were perhaps because of the use of sonar(声呐) underwater. Another main reason of loud underwater noise is pile driving(打桩). Piles are supports for bridges, oil and gas-producing areas. They're driven deep into the floor of the ocean. Driving a single pile can take several hours and result in as many as 5,000 hits. This process creates a lot of noise.
To restrain that noise, some companies are making use of tiny bubbles(气泡). A single bubble is easily broken. However, the bubble wall can make pile driving quieter. The bubble wall is usually created in this way: A tube(管子) is placed in a ring(环形物体) around a pile. Air is then let out through openings in the tube. When the bubbles rise, they act as a wall and take in some of the noise. Some more of the sound reflects back and can't go outside of the wall. Such bubble walls are really helpful.
Other changes to pile driving can help as well. For example, people can take breaks while pile driving and let animals travel through.
Our noise in the ocean is causing big problems. But small changes in our behaviors can make a big difference to animals' lives in the world's oceans.
()53. What troubled the lives of ocean animals according to the text?
A. The gas produced in the sea.
B. The food polluted by humans.
C. The noise from human activities.
D. The bubble walls made by some companies.
()54. Which word is close to the underlined word "restrain"?
A. Control.
B. Produce.
C. Make.
D. Start.
()55. What is the structure(结构) of the text? (P1 = Paragraph 1...)

()56. What's the writer's purpose(目的) of writing the text?
A. To explain where the ocean noise comes from.
B. To tell people more about sea animals.
C. To call on people to protect animals.
D. To ask people to make a difference to the ocean.

53. C 【解析】细节理解题。根据第一段中“But the noise from human activities is increasingly troubling the lives of ocean animals.”可知,人类活动的噪音越来越困扰着海洋动物的生活,故选 C。
54. A 【解析】词义猜测题。根据第三段中“To restrain that noise, some companies are making use of tiny bubbles.”可知,一些公司正在利用微小的泡沫,这样做是为了抑制噪音,故画线部分“restrain”和“control”的意思相近,故选 A。
55. B 【解析】文章结构题。根据全文内容可知,本文第一段介绍来自人类活动的噪音越来越困扰着海洋动物的生活;第二段介绍人类产生噪音的原因;第三、四段介绍展示了人类是如何改变打桩减少噪音的;第五段介绍我们行为的微小变化可以对世界海洋中动物的生活产生巨大的影响,故选 B。
56. D 【解析】写作目的题。根据最后一段“Our noise in the ocean is causing big problems. But small changes in our behaviors can make a big difference to animals' lives in the world's ocean.”及全文内容可知,作者写这篇文章是希望人们通过改变行为来保护海洋,故选 D。

【分析】
本题为英语阅读理解题，涵盖细节理解、词义猜测、文章结构、写作目的四类题型。解题时需先通读全文把握主旨，再针对各小题定位原文关键信息，结合语境分析词义，梳理段落逻辑结构，最后推断作者写作意图。
【解析】
53. 细节理解题：根据第一段“But the noise from human activities is increasingly troubling the lives of ocean animals.”可知，困扰海洋动物生活的是人类活动产生的噪音，故选C。
54. 词义猜测题：第三段提到“To restrain that noise, some companies are making use of tiny bubbles”，利用气泡的目的是抑制噪音，“restrain”意为“控制、抑制”，与“control”意思相近，故选A。
55. 文章结构题：P1引入人类噪音困扰海洋动物；P2说明海洋噪音的产生原因；P3-P4介绍减少噪音的应对措施；P5总结呼吁人们改变行为保护海洋动物，对应选项B的结构，故选B。
56. 写作目的题：最后一段点明“小改变能对海洋动物生活产生大影响”，作者希望人们通过改变行为对海洋做出积极改变，故选D。
【答案】
53.C 54.A 55.B 56.D
【知识点】
英语阅读理解、细节理解、词义猜测
【点评】
本文围绕海洋噪音对海洋动物的影响展开，题型全面，既考查学生定位原文信息的能力，也考查词义推断、结构梳理和主旨把握能力，贴近环保主题，引导学生关注海洋生态保护。
【难度系数】
0.6