首页
登录
职称英语
What is this passage mainly about? [originaltext] Scientists say sharks have
What is this passage mainly about? [originaltext] Scientists say sharks have
游客
2023-11-18
37
管理
问题
What is this passage mainly about?
Scientists say sharks have lived in the world’s oceans for millions of years. Scientists say there are more than 350 different kinds of sharks.
Sharks do not have bones, and a shark has an extremely good sense of smell. It can find. small amounts of substances in the water, such as blood, body liquids and chemicals produced by animals. Sharks also sense electrical and magnetic power linked to nerves and muscles of living animals. These powerful senses help them find their fond. Some sharks will eat just about anything. Many unusual things have been found in the stomachs of some large sharks. They include shoes, dogs, a cow’s foot and metal protective clothing.
About forty percent of the different kinds of sharks lay eggs. The others give birth to live young. Some sharks carry their young inside their bodies like humans do.
Scientists are beginning to understand the importance of sharks to humans. Medical researchers want to learn more about the shark’s body defense system against disease. They know that sharks recover quickly from injuries. Sharks appear never to suffer infections, cancer or heart diseases.
选项
A、The necessity of protecting sharks.
B、The living environment of sharks.
C、The dangers of sharks to human beings.
D、An introduction to sharks.
答案
D
解析
原文围绕着鲨鱼(sharks)的生活习性展开,依次说明了它的身体特征,捕食方法,繁殖方式和对疾病的抵抗性等,故D 为答案,而A 和C 与本文无关,B 过于片面。
转载请注明原文地址:https://tihaiku.com/zcyy/3196679.html
相关试题推荐
WhendidMrs.Westongotoseeherdoctor?[br][originaltext]WhenJohnWe
Whatistheplacethewomancallsto?[br][originaltext]M:Hello,NationalEx
Whatistheplacethewomancallsto?[originaltext]M:Hello,NationalExpress
Whatisthewoman’spurposetohavesuchaconversation?[br][originaltext]W:
Whatisthewoman’spurposetohavesuchaconversation?[br][originaltext]W:
Whatisthewoman’spurposetohavesuchaconversation?[originaltext]W:Philip
Thescientistshaveabsolutefreedomastowhatresearchtheythinkitbestto_
WhohasthesovereigntyovertheHarwarIslands?[br][originaltext][26]Str
Whendidtheincidenthappen?[br][originaltext][27]Theincidenttookpla
Whendidtheincidenthappen?[originaltext][27]Theincidenttookplacelas
随机试题
ItwasachillyNovembereveninginNewYorkCity,andmydaughterandIwer
HarvardUniversityistheoldestinstituteofhigherlearningintheUnited
Weuselanguageeveryday.Weliveinaworldofwords.Hardlyanymomentpa
Theprocessby【C1】______ofwhichhumanbeingsarbitrarilymakecertainthing
[originaltext]W:Exercise,exercise,exercise.Wehearsomuchaboutitthesed
在课堂教学中如何向学生提问?
患者43岁,女性,因患子宫颈癌行根治术。该病人术后拔除导尿管的时间是 A.24
支气管扩张的早期病理改变是A.柱状扩张 B.气管扭曲 C.气管坏死 D.气
1,4.4,16.1,16.16,256.1,( )A.256 B.1.1
负债按流动性分类分为流动负债和非流动负债,下列属于流动负债的有( )。A.应付
最新回复
(
0
)