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、It tries to categorize the different kinds of sharks throughout the world. B、It tries to warn humans of the dangers posed by s
A、It tries to categorize the different kinds of sharks throughout the world. B、It tries to warn humans of the dangers posed by s
admin
2010-04-30
68
问题
Most people picture sharks as huge, powerful, frightening predators, ready at any moments to use their sharp teeth to attack careless swimmers without provocation. But, people may have some wrong ideas on the conception of sharks.
First, there are 350 species of shark, and not all of them are large. They range in size from the dwarf shark, which can be only 6 inches long and can be held in the palm of the hand, to the whale shark, which can be more than 55 feet long.
Second, the different species of shark vary. tremendously in the number and type of teeth. A shark can have from one to seven sets of teeth at the same time, and some types of shark earl have several hundred teeth in each jaw. It is true that the fierce and predatory species do possess extremely sharp and brutal teeth used to rip their prey apart: many other types of shark, however, have teeth more adapted to grabbing and holding than to cutting and slashing.
Finally, not all sharks are predatory animals ready to strike out at humans. In fact, only 12 of the 350 species of shark have been known to attack humans, and a shark needs to be provoked in order to attack. The types of shark that have the worst record with humans are the tiger shark, the bull shark, and the great white shark. However, for most species of shark, even some of the largest types, there are no known instances of attacks on humans.
选项
A、It tries to categorize the different kinds of sharks throughout the world.
B、It tries to warn humans of the dangers posed by sharks.
C、It tries to describe the characteristics of shark teeth.
D、It tries to clear up misconceptions about sharks.
答案
D
解析
文中提到"People may have some wrong ideas on the conception of sharks",而且在随后的内容中用具体的例子证明了这一点。故选D。
转载请注明原文地址:https://kaotiyun.com/show/INOK777K
0
大学英语六级
相关试题推荐
A、1B、2C、3D、4DHowmanypeoplewerekilledinthetwobombings?
A、ByreadingtheBBCbook.B、BygoingtoaneveningclassbyBBC.C、BywatchingBBCprograms.D、BygoingtoSpaintotalkwithS
Somanypeoplecomplainedabouttheheavytraffic____________(以至市政府最终采取了措施).
Contrarytothepopularconceptionthattypicalsciencefictionisaboutthemonsters,thisliteraryefforttalksabouttherel
A、TheyproducedmorecarsthanAmericanmanufacturers.B、Theyreducedcar-productioninAmerica.C、Theygaveupmoremarketshar
A、Totransportwatertohigherplace.B、Totransportvegetablesquickly.C、Tobringnutrientstothesoil.D、Toadjustthesoil
A、Thestudentwillhandinthefinalcopy.B、Thestudentwillhavetheprofessortolookatherdraft.C、Thestudentwilldoaf
A、Aroomforfivepeople.B、Asingleroom.C、Ahoneymoonsuite.D、Adoubleroom.CWhatkindofroomdidthemanreserveatlast
A、Onethird.B、Almosttwothirds.C、Morethantwothirds.D、Almosthalf.B文中提到,根据调查,63%的美国成年人没有8个小时的睡眠时间,这8个小时是健康身体、安全优良工作表现所需要的
A、NewFashioninThailand.B、HowtoUseAir-conditionerwisely.C、ANewWaytoSaveEnergy.D、Air-conditionerinThailand.C本题问的
随机试题
休克时血细胞压积为什么先降低再升高?
首先考虑的诊断是继续治疗宜选用
革兰阳性菌感染者对青霉素过敏可选用
A.血钾减低、血钠减低、血尿酸升高B.咳嗽、血钾升高、血管性水肿C.体位性低血压、支气管痉挛D.支气管痉挛、心功能抑制E.血钾减低、水电解质紊乱服用倍他洛尔后会出现的主要不良反应是()
()的独特之处是以抛棒(刀)击鼓,类似于杂耍丢刀。
A、0B、1C、2D、3B
思维是以_______为基础,反映的是事物的本质特征和事物之间的联系。
设X1,X2,…,Xn是来自总体X~N(μ,σ2)(μ,σ2都未知)的简单随机样本的观察值,则σ2的最大似然估计值为()
Overthelast25years,Britishsocietyhaschangedagreatdeal--oratleastmanypartsofithave.Insomeways,however,very
25yearsago,RayAnderson,asingleparentwithaone-year-oldson【B1】______aterribleaccidentwhichtookplacewhenthedrive
最新回复
(
0
)