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
Sharks Perform a Service for Earth’s Waters It is hard to get people to think of sharks as anything but a deadly enemy. They
Sharks Perform a Service for Earth’s Waters It is hard to get people to think of sharks as anything but a deadly enemy. They
admin
2010-01-16
52
问题
Sharks Perform a Service for Earth’s Waters
It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to 【51】______ people frequently. Although these fish perform a valuable 【52】______ for earth’s waters and for human beings, business and sport fishing are threatening their 【53】______. As a result, some sharks are at risk of disappearing from Earth.
Warm weather may influence both fish and shark 【54】______. Many fish swim near coastal areas because of their 【55】______ waters. Experts say sharks may follow the fish into the same areas, 【56】______ people also swim. In fact, most sharks do not purposely charge at or bite humans. They are thought to mistake a person 【57】______ a sea animal, such as a seal(海豹) or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up, because those are the times when sharks are looking for 【58】______. Experts also say that bright colors and shiny jewelry(珠宝) may cause sharks to attack.
A shark has an extremely good sense of 【59】______, with which it can find small amounts of substances in water, such as blood, body liquids and chemicals 【60】______ by animals. These powerful senses help sharks find their food. Sharks eat fish, any 【61】______ sharks, and plants that live in the ocean.
Medical researchers want to learn more about the shark’s body defense and immune(免疫的) 【62】______ against disease. Researchers know that sharks 【63】______ quickly from injuries. They study the shark in hopes of finding a way to fight human disease.
Sharks are important for the world’s oceans, as they eat injured and diseased fish. Their 【64】______ activities mean that the numbers of other fish in ocean waters do not become too 【65】______. This protects the plants and other forms of life that exist in the oceans.
选项
A、to
B、for
C、as
D、with
答案
B
解析
此句表达的意思是鲨鱼误把人当成海里的动物了,"mistake…for…"是"把…误作为…"的意思。
转载请注明原文地址:https://kaotiyun.com/show/4CLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
Hewasrathervagueaboutthereasonswhyheneverfinishedschool.
AnimalshaveRightsRulingoutTheirUseinResearch?Toparaphrase18th-centurystatesmanEdmundBurke,"allthatisneed
WhatIsMarket?Thewordmarketisusedinanumberofways.Thereisastockmarketandanautomobilemarket,aretailmark
AnimportantpartofthenationalgovernmentistheForeignService,abranchoftheDepartmentofState.
ListeningtoBirdsongAmalezebrafinchchirpsawaytohimself.Suddenlyhenoticesafemalebirdnearby.Herealizesheha
AdifferenttechniquesBsocialrelationshipsandcommunicationClanguageandinformationDseveralcausesworkingtogetherEa
AdifferenttechniquesBsocialrelationshipsandcommunicationClanguageandinformationDseveralcausesworkingtogetherEa
WhichofthefollowingstatementsisNOTtrueoftheJapaneseconceptcar?WhichofthefollowingisNOTmentionedinParagraph
Farmers’MarketsCharlotteHollinsknowsshefacesabattle.The23-year-oldBritishfarmerandher21-year-oldbrotherBen
Theeternalmotionofthestarsfascinatedhim.
随机试题
对下列农业知识的掌握有误的一项是()。
损伤当时无内出血表现,但以后在微弱外力作用下都可发生严重内出血的病变是
对境外投资的专业性管理包括()。
阅读某位教师的《沁园春.雪》教学设计,按要求答题。【教学目标】通过朗读,体味词的韵律美。过渡语:有人说,诗歌是凝固的音乐,特别适合朗读。初读:要求读得准确流畅。学生自由朗读。学生朗读展示。教师评价:从朗读的流利、读音的准确方面予以评价。全班齐声朗读。
特殊儿童
话剧《风雪夜归人》的作者是()。(中传2013年研)
[*]
已知向量a,b的模分别为|a|=2,|b|=,且a.b=2,则|a×b|=()
通过指针链接来表示和实现实体之间联系的模型是______。
如果将一台Catalyst6500交换机的管理地址设置为212.220.8.99/28,缺省路由设置为212.220.8.97,下列对交换机的配置,正确的是()。
最新回复
(
0
)