首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Where noise comes from. B、Ways to reduce noise. C、Noise and whales. D、How whales live in the sea. C题干询问短文的主题。短文提到,鲸鱼受到来自于海浪、雨水
A、Where noise comes from. B、Ways to reduce noise. C、Noise and whales. D、How whales live in the sea. C题干询问短文的主题。短文提到,鲸鱼受到来自于海浪、雨水
admin
2012-07-05
7
问题
(26) If a noisy neighbor is blasting music at all hours of the day and night, drowning out your phone conversations and interrupting your sleep, you can call the police. But what is a whale to do?
Natural noise from waves, wind, rain and even earthquakes is common in oceans. Unfortunately, man-made noise from oil and gas drilling, sonar, and ships is also present.
(27) Low frequency noise has doubled off the California coast every decade since the 1960s. Most of them are ships’ engines. They not only generate continuous low frequency sound, but also create air bubbles that collapse , creating loud popping sounds.
Whales use low frequency calls to communicate across thousands of miles of ocean. They are threatened by noise pollution because it can prevent them from contacting each other and from locating food. Right whales are the most at risk.
Scientists studying right whales off Canada’s east coast have discovered that whales are sending louder calls through the water to make themselves heard. Because they invest more energy in making calls, they have less energy available for finding food and mating. (28) Other scientists measuring whale calls against background noise pollution have discovered that right whales have lost about eighty percent of their normal communication area. This could seriously affect survival of this already threatened species.
Scientists don’t have badges and guns, but they are trying to correct the noise pollution problem. (29) By tracking ships and marine mammals and understanding how noise travels, they are creating sound maps.
26. What is the main topic of this passage?
27. What is the main cause of low frequency noise off the California coast?
28. What could seriously affect survival of the right whales?
29. What measures will be taken for the noise pollution problem?
选项
A、Where noise comes from.
B、Ways to reduce noise.
C、Noise and whales.
D、How whales live in the sea.
答案
C
解析
题干询问短文的主题。短文提到,鲸鱼受到来自于海浪、雨水甚至是地震带来的噪声的影响,而现在,又增加了来自于人类的船只等设备的噪音,整篇文章都在讲述噪声对于鲸鱼生存状态的不良影响,故答案为C)。
转载请注明原文地址:https://jikaoti.com/ti/n5cFFFFM
0
大学英语四级
相关试题推荐
Themanager____________(发脾气了)justbecausehissecretarywastenminuteslate.
Somepeoplearecontenttolimittheirinvestmentprogramstosuchsafeinvestmentsassavingsaccountsandsavingsbonds.They
AcademicFreedomreferstotherightofteachersandresearchers,particularlyincollegesanduniversities,toinvestigatethei
A、Sheknowstheguywhowillgivethelecture.B、Shethinksthelecturemightbeinformative.C、Shewantstoaddsomethingtohe
A、MoneyB、JewishindependenceC、UniversitysettingD、TheoryD细节题。文中也有直接答案——Hewasinterestedintheory。实际上,因为Freud是个著名人物,而短文所讲的
A、Morethan200.B、Morethan300.C、Morethan400.D、Morethan600.C题目询问喷气式飞机能载多少乘客。关键是听到“这种飞机能载400多名乘客”,可知答案为C。
A、Shethinkshersonhasalmosteverythinghewants.B、SheisnotsurewhetheranMP3playerisanicegift.C、Shefindsithard
A、Sheworksatthemeatcounter.B、Shearrangesproductsinneatpilesontheshelves.C、Shecarriesgroceriesoutofthestore
A、Shethinkstheyareexpensive.B、Shedoesn’tthinktheyareexpensive.C、Shethinkssomearenotexpensive.D、Shehasnoidea
Itishardtopredicthowscienceisgoingtoturnout,andifitisreallygoodscienceitisimpossibletopredict.Ifthethi
随机试题
女性,30岁,背部肿块,红、肿、疼痛3天,寒战、发热39℃,查体:背部肿物3cm×5cm,触之有波动感。当病灶做局部引流和全身应用抗生素后,仍有寒战、高热。最合适的治疗措施是
关于抗菌药物的配伍禁忌A、青霉素B、氨基糖苷类C、头孢菌素类D、红霉素E、两性霉素B与头孢菌素联用可致肾毒性增强的是
术后急性胃扩张的处理,下列措施最重要的是
案情:李某和王某共同抢劫致人死亡,被某中院一审,一审后李某被判死刑,缓期两年执行,王某被判有期徒刑十年。问题:本案如果李某上诉了,王某没有上诉,问二审法院该如何处理?
位于两个安全出口之间的中学普通教室,面积不大于()时可设一个疏散门。
下列相关服务中,属于理财顾问服务的有()。
商店里的货品有标价,如一支钢笔标价为6元。在这里,货币执行的是()的职能。
典型常常是文学至高的美学追求。()
A和B订立的合同中内容约定不明确,按照合同有关条款内容不能确定,且他们又不能通过协商达成协议时,下列解决办法不符合法律规定的是()。
反对中小学生阅读《三国演义》,是一种杞人忧天的行为。这种家长式的焦虑非常可笑,就像劝阻孩子不要碰一块蛋糕一样,没有别的办法,只好说那块蛋糕里面长满了毒素。而事实证明,已经有无数人在吃过那块“蛋糕”之后是安然无恙的,再用夸张的词汇去形容它的不堪就是说谎了。这
最新回复
(
0
)