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
In almost all cases the soft parts of fossils are gone for ever but they were fitted around or within the hard parts. Many of th
In almost all cases the soft parts of fossils are gone for ever but they were fitted around or within the hard parts. Many of th
admin
2010-01-10
44
问题
In almost all cases the soft parts of fossils are gone for ever but they were fitted around or within the hard parts. Many of them also were attached to the hard parts and usually such attachments are visible as depressed or elevated areas, ridges, or grooves, smooth or rough patches on the hard parts. The muscles most important for the activities of the animal and most evident in the appearance of the living animal are those attached to the hard parts and possible to reconstruct from their attachments. Much can be learned about a vanished brain from the inside of the skull in which it was lodged.
Restoration of the external appearance of an extinct animal has little or no scientific value. It does not even help in inferring what the activities of the living animal were, how fast it could run, what its food was, or such other conclusions as are important for the history of life. However, what most people want to know about extinct animals is what they looked like when they were alive. Scientists also would like to know. Things like fossil shells present no great problem as a rule, because the hard parts are external when the animal is alive and the outer appearance is actually preserved in the fossils.
Animals in which the skeleton is internal present great problems of restoration, and honest restorers admit that they often have to use considerable guessing. The general shape and contours of the body are fixed by the skeleton and by muscles attached to the skeleton, but surface features, which may give the animal its really characteristic look, are seldom restorable with any real probability of accuracy. The present often helps to interpret the past. An extinct animal presumably looked more or less like its living relatives, if it has any. This, however, may be quite equivocal. For example, extinct members of the horse family are usually restored to look somewhat like the most familiar living horses — domestic horses and their closest wild relatives. It is, however, possible and even probable that many extinct horses were striped like zebras. Others probably had patterns no longer present in any living members of the family. If lions and tigers were extinct they would be restored to look exactly alike. No living elephants have much hair and mammoths, which are extinct elephants, would doubtless be restored as hairless if we did not happen to know that they had thick, woolly coats. We know this only because mammoths are so recently extinct that prehistoric men drew pictures of them and that the hide and hair have actually been found in a few specimens. For older extinct animals we have no such clues.
The third paragraph of the passage deals with the difficulties of restoring the following fossilized animals EXCEPT______.
选项
A、those which had complex internal structures
B、those which had no external hard parts
C、those which had fur-covered bodies
D、those which had no living relatives
答案
A
解析
这是道细节题。根据文章中第三段的内容,“Animals in which the skeleton is internal present great problems of restoration,”“No living elephants have much hair and mammoths, which are extinct elephants, would doubtless be restored as hairless if we did not happen to know that they had thick, woolly coats. We know this only because mammoths are so recently extinct that prehistoric men drew pictures of them and that the hide and hair have actually been found in a few specimens.”关于重建化石动物的困难B,C,D都有提到,唯独没有提及那些有着复杂内部机构的这个困难,故选A。
转载请注明原文地址:https://jikaoti.com/ti/KkQYFFFM
本试题收录于:
NAETI中级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI中级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Accordingtotheweatherforecast,whichisusually______,itwillrainthisafternoon.
Withtheunderstandingofphobiashascomeamagicbagoftreatments:exposuretherapythatcanstompoutalifetimephobiaina
ThepeopleofChinaareworkingveryhardtomakeconcertedeffortstoinvigoratethecountry.
Losingajobornotbeingabletofindonealmostalwaysbringsunwelcomechanges.Ifyou’velostajob,thefirstfeelingisof
ItseemsincredibletomethatLatinisnottaughtinschoolsasamatterofcourse,especiallyinacountrythatisforeverlam
IntheUnitedStatesandinmanyothercountriesaroundtheworld,therearefourmainwaysforpeopletobe【C1】______aboutdeve
Goingaroundatthetopofthemountain,wewatchedthefog______fromthevalleybelow;itseemedthatwehadenteredafairylan
Dolemaynolongerhavetoblowawaythecompetitiontotriumphinthe______expectationsgame.Nowthepartyeldershope,all
我国首次月球探测工程的成功,是继人造地球卫星、载人航天飞行取得成功之后我国航天事业发展的又一座里程碑,实现了中华民族的千年奔月梦想,开启了中国人走向深空探索宇宙奥秘的时代,标志着我国已经进入世界具有深空探测能力的国家行列。这是我国推进自主创新、建设创新型国
随机试题
若有定义intx,y;并已正确给变量赋值,则以下选项中与表达式(x-y)?(x++):(y++)中的条件表达式(x-y)等价的是()。
在体内能分解为β-氨基异丁酸的核苷酸是:
朱砂用治癫痫抽搐常配伍的药是
A.横断面研究B.病例对照研究C.队列研究D.现场实验E.社区实验
采用剩余法估价时,应该把握好最佳开发利用方式的分析、开发总价值的预测,以及开发成本、开发期、利润等项的估算。()
根据《中华人民共和国大气污染防治法》燃煤和其他能源污染防治有关规定,国家鼓励燃煤单位采用先进的()等大气污染物协同控制的技术和装置减少大气污染物的排放。
【2015年河南新乡.单选】()指注意指向于一定事物时持有的聚精会神的程度。
布置课外作业的目的是()
Americaisthelandoftheautomobile.Thiscountryhasonly6percentoftheworld’spopulationbut46percentoftheworld’sc
Haveyoueverwonderedwhatourfutureislike?Practicallyallpeople【C1】______adesiretopredicttheirfuture【C2】______Mostp
最新回复
(
0
)