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
What is this passage mainly about?
What is this passage mainly about?
admin
2013-02-05
78
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 three- hundred-fifty different kinds of sharks.
(14[B]) 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 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. (15[C]) Some sharks carry their young inside their bodies like humans do.
Scientists are beginning to understand the importance of sharks to humans. (16[B]) 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、Call On people to protect sharks.
B、Point out the living environment of sharks.
C、Explain why the sharks are dangerous.
D、An introduction to sharks.
答案
D
解析
主旨题。本文围绕着鲨鱼(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。因此D 为正确.A,C与本文无关,B 太片面。
转载请注明原文地址:https://kaotiyun.com/show/vrhK777K
0
专业英语四级
相关试题推荐
WhichofthefollowingisNOTtrueaccordingtotheconversation?
Humoristhemosteffectivemeansofhandlingthedifficultsituations.Itcanbeusedfor【C1】______updifferences,apologizing
Itisappropriateonananniversaryofthefoundingofauniversitytoremindourselvesofitspurposes.Itisequallyappropria
UnlikethecarefullyweighedandplannedcompositionsofDante,Goethe’swritingshavealwaysthesenseofimmediacyandenthusi
UnlikethecarefullyweighedandplannedcompositionsofDante,Goethe’swritingshavealwaysthesenseofimmediacyandenthusi
UnlikethecarefullyweighedandplannedcompositionsofDante,Goethe’swritingshavealwaysthesenseofimmediacyandenthusi
Inthepasttwentyyears,therehasbeenanincreasingtendencyforworkerstomovefromonecountrytoanother.【C1】______somen
Welearnfromthepassagethatabouttwo-thirdsofthecoursesaretaughtthrough______.
Inanysociety,nomatterhow【C1】______,someindividualshaveauthority【C2】______others,atleastwithinalimitedsphere.Obed
Whendidthefirstawardceremonytakeplace?
随机试题
WhyisthemanatManziTechnology?
_____,字熙甫,号______,明代优秀______。他反对以李攀龙、王世贞为首的“后七子”追章琢句,模拟剽窃”的文风,主张______。他的散文长于______,以简洁的语言写人叙事,寄托自己的感情。著有______。
A.合欢皮B.酸枣仁C.远志D.琥珀E.磁石既能活血散瘀,又能镇惊安神的药物是()
用人单位安排加班不支付加班费的,由劳动行政部门责令限期支付;逾期不支付的,由劳动行政部门责令用人单位按应付金额的()向劳动者加付赔偿金。
自由现金储备、留存借贷能力、厂房设备的余力、定型的但尚未推出的新产品等因素决定着竞争对手的()。
下列关于一般公司债券发行的表述中,正确的有()。
对于可能判处无期徒刑的案件,应当对讯问过程进行录音或录像。()
早上水缸注满水后,白天用去了其中20,傍晚又用去了27升,晚上用去剩下水的10%,最后剩下的水是半水缸多1升。问早上注入多少升水?()
除非像给违反交通规则的机动车一样出具罚单,否则在交通法规中禁止自行车闯红灯是没有意义的。因为一项法规要有意义,必须能有效地制止它所禁止的行为。但是上述法规对于那些经常闯红灯的骑车者来说显然没有约束力,而对那些习惯于遵守交通法规的骑车者来说,即使没有这样的法
Amongthepleasuresintheworld,thejoyfromreadingcanbeone.Happyisthemanwhoacquiresthe【C1】______ofreadingwhen
最新回复
(
0
)