首页
登录
职称英语
[originaltext] Most people picture sharks as huge, powerful, frightening pre
[originaltext] Most people picture sharks as huge, powerful, frightening pre
游客
2023-09-01
81
管理
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
What is the main purpose of this passage?
转载请注明原文地址:https://tihaiku.com/zcyy/2974788.html
相关试题推荐
[originaltext]DuringtheearlyAmericancolonialyears,cornwasmoreplent
[originaltext]DuringtheearlyAmericancolonialyears,cornwasmoreplent
[originaltext]DuringtheearlyAmericancolonialyears,cornwasmoreplent
[originaltext]Ifyouseizethestemofanettle(荨麻)firmly,perhapswitht
[originaltext]Ifyouseizethestemofanettle(荨麻)firmly,perhapswitht
[originaltext]Man’sfirstrealinvention,andoneofthemostimportantinv
[originaltext]M:Morning.Happytomeetyouhere.Howareyouandhowisyourw
[originaltext]W:Oh,hi,Daniel.(19)Areyougoingtothein-servicegainingt
[originaltext]W:Oh,hi,Daniel.(19)Areyougoingtothein-servicegainingt
[originaltext]BillGateswasborninSeattle,Washingtonin1955.Heco-fou
随机试题
Ifyoukeepearlyhours,you’ll______.[br]Apersonneedsexercisebecause___
In1954,anAmericancalledRayKrocwassellingmilkmachines.Mostrestaura
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
[originaltext]M:Excuseme,areyouwaitingtobuyconcerttickets?W:Yes,Ia
女性,26岁。4周前感冒,1周后出现全身水肿,尿少来诊。体格检查:血压140/9
2019年,某经销商进口了一款3.5L排量的进口车,该车关税完税价格为30万元,
钠 1.题目:高中《钠》片段教学 2.内容: 3.基本要求: (
药品不良反应报告制度的法定报告主体是A.药品生产企业B.药品经营企业C.医疗机构
不符合《大气污染防治法》规定的防治燃煤产生的大气污染的制度和措施有()。 A
(2019年真题)某男,24岁,患感冒,症见恶寒、发热、无汗、头重而痛,肢体酸痛
最新回复
(
0
)