首页
登录
职称英语
What is this passage mainly about? [br] [originaltext] Scientists say sharks
What is this passage mainly about? [br] [originaltext] Scientists say sharks
游客
2023-11-10
45
管理
问题
What is this passage mainly about? [br]
Scientists say sharks have lived in the world’s oceans for millions of years. Scientists say there are more than three-hundred-fifty 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 food. Some sharks will eat just about anything. Many unusual things have been found in the stomachs of some tiger 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、Bone structure.
B、Smell ability.
C、Birth mode.
D、Recover ability against disease.
答案
C
解析
“The others give birth to live young. Some sharks carry their young inside their bodies like humans do.”从此句,我们可以看出鲨鱼和人类的相似之处正是生产方式相同。
转载请注明原文地址:https://tihaiku.com/zcyy/3174417.html
相关试题推荐
SomeHaitiansareonstrikeinorderto______[originaltext]Haitianhunger
Whydoesthewritersuggestthatyoushoulddotheworkyourself?.[originaltext
Whatisthepassagemainlyabout?[br][originaltext]Internetexpertsare
Whatisthepassagemainlyabout?[originaltext]Internetexpertsaremeetin
WhatcanbelearnedaboutMissBrown’sfirstbook?[br][originaltext]M:Hi,Mi
WhatcanbelearnedaboutMissBrown’sfirstbook?[br][originaltext]M:Hi,Mi
WhatcanbelearnedaboutMissBrown’sfirstbook?[originaltext]M:Hi,MissBro
Whydidthemancallthewoman?[br][originaltext]W:ElizabethMartinspeaking
Whydidthemancallthewoman?[originaltext]W:ElizabethMartinspeaking.M:D
Howmanypeoplewererescuedfromthedepartmentbuilding?[br][originaltext]
随机试题
Ifyougotowork,you’reprobablyfamiliarwiththeroutineoftravelli
Hasyourchildcrackedabookthissummer?Althoughadultsoftenjumpat
ThenightofDecember16,1773,dozensofMassachusettscolonistsquietlyboa
当价格低于均衡价格,股指期货投机者低价买进股指期货合约;当价格高于均衡价格,股指期货投机者高价卖出股指期货合约,从而最终使价格趋向均衡。这种做法可以起到(
Newscastsareroutinelyfilledwithsuchsensationalstoriesthatthepublicis
NearlyhalfofUSemployersresearchtheonlineprofilesofjobcandidateso
以下有关软件评测师的认识,错误的是()。A.软件测试是为了发现错误而执行程序的
共用题干 王先生夫妇今年均刚过35岁,打算55岁退休,预计夫妇俩退休后每年的生
关于意见文种的说法,下列选项错误的是:() A.意见适用于对重要问题提出见
艾森克提出的人格基本维度有A.外倾性 B.开放性 C.神经质 D.精神质
最新回复
(
0
)