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
2010-05-25
48
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://kaotiyun.com/show/9s1K777K
0
专业英语四级
相关试题推荐
Noonecandenythatpesticidehaveimprovedtheabilityoffarmerstobringtheircropstomarket.【C1】______pesticides,farmer
NowadaystheInternethasbecomepartofpeople’slife,andmillionsofyoungpeoplehavemadefriendsonline.WriteonANS
Ourassociation,whichhasconsistentlypressedforgreateremploymentopportunitiesforthedisabled,willpublish______propo
WhichisNOTtrueabouttheattack?
Itis______unlikelythattherebellionforceswillsurrendertotheGovernment.
Whatistherelationshipbetweenthespeakers?
Thereportersweremostinterestedinhearinghis______viewsonthesituationinthePersianGulf.
Somesayitishumannaturetowantsomethingnewandsomethingdifferent.Commentonthis.WriteonANSWERSHEETTWOacompo
Theevolutionofsexratiohasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesan
Whenyouchooseafreezer,rememberit’sprobablygoingtobewithyouforalongtime.Nosinglestyleorsizeisbest,soit’s
随机试题
代理人在代理权限内,以行为人的名义实施民事法律行为。()
简述直接诉讼与派生诉讼的区别。
本变电所选择一组220V铅酸蓄电池作为直流电源,若经常性负荷的事故放电容量为9.09A.h,事故照明负荷放电容量为6.82A.h,按满足事故全停电状态下持续放电容量要求,求蓄电池10h放电率计算容量Cc为下列哪一项?(可靠系数取1.25;容量系数取0.4)
心理咨询师在咨询中使用的提问方式不包括()。下面是某求助者的SCL-90测验结果:总分:200阳性项目数:61从统计结果可以算出,该求助者的阳性项目均分约为()。
为进一步推动大众创业和跨界创新,2月4日,在科技部的指导和支持下,()在全国率先启动“创业中国引领工程”和“互联网跨界融合创新示范工程”。
甲贪污公款3万元,后逃到外地,因害怕被从重处罚,为了争取宽大处理,即向原居住地检察机关写了一封信,如实交代了自己的罪行和赃款隐藏地点,随后甲被公安机关逮捕。甲属于()。
SincetheearliesttimesinEngland,thetraveler’sinnhasalwaysbeenawarmandhospitableplace,agatheringplaceforvoya
设f(x)在[0,1]上连续且递减,证明:当0<λ<1时,∫0λf(x)dx≥λ∫01f(x)dx.
Thenewspapermustprovideforthereaderthefacts,unalloyed,unslanted,objectivelyselectedfacts.Butinthesedaysofcomp
Once-dailyPillCouldSimplifyHIVTreatmentBristol-MyersSquibbandGileadScienceshavecombinedmanyHIVdrugsintoasingle
最新回复
(
0
)