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
(1)Naturally, in a group of animals as diverse as the snakes, and with so many varied enemies, there are numerous defensive reac
(1)Naturally, in a group of animals as diverse as the snakes, and with so many varied enemies, there are numerous defensive reac
admin
2017-10-17
34
问题
(1)Naturally, in a group of animals as diverse as the snakes, and with so many varied enemies, there are numerous defensive reactions and devices. There is, however, one general pattern of behavior. In the presence of suspected enemy the first reaction is to try to escape observation; if this fails, the next resort is the flight to some inaccessible retreat, but if this is not possible, or is circumvented, various kinds of intimidatory gestures and warning devices are brought into play; in the last resort the snake attacks. This pattern varies with the circumstances; some stages may be omitted or combined unpredictably whilst; some notoriously irascible species may
dispense with all the preliminaries
and attack almost at once, though seldom or never without some provocation.
(2)Amongst the factors that increase aggressiveness are hunger, the mating season and surprise, with the last mentioned the commonest; when hunting for food or for mate, activity and the aggressive instinct are both at their peak. Owing to their poor sense of hearing snakes are very liable to be, quite literally, caught napping and a similar situation arises during their periods of temporary blindness just before sloughing (蜕皮) begins. By far the greatest number of snake-bit accidents result from the unwitting disturbance of resting snakes, and this hazard is much increased with species that are well disguised and whose natural instinct is to trust to this concealment as their principal defense. As well as differences in aggressiveness between individuals of the same species according to the circumstances and conditions, there are also notable differences between species, even closely allied species; and the reports of those who have been attacked may understandably be lacking in objectivity. So it is impossible to forecast, even in outline, how any encounter will develop.
(3)The Hamadryad, for example, is usually credited with being amongst the most aggressive of snakes, and there are many accounts of unprovoked attacks, yet on one occasion fourteen men and seven dogs passed and returned within two yards from a nest and no snake was seen although the female, which guards the nest, could not have been far away.
The author uses the example in the last paragraph to support his idea that ______.
选项
A、snakes do not begin the aggressive act if it is not disturbed
B、some snakes are more aggressive and more ready to attack
C、it is hard to forecast whether and how snakes would attack
D、snakes often conceal themselves as their principal defense
答案
C
解析
末段开头就有for example这个标志性的词组,表明这一句是为了支持上一段末句的观点的,由此可见,本题答案应为选项C。
转载请注明原文地址:https://jikaoti.com/ti/OWiMFFFM
0
专业英语四级
相关试题推荐
WhichofthefollowingdetailsisINCORRECT?
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]experience[G]lazy[H]noisy[I]pr
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]experience[G]lazy[H]noisy[I]pr
A、Itisnotallowed.B、Itisacommonthing.C、Itshouldbekeptsecret.D、Itispopularwithyoungpeople.B本题考查人物观点。由句(1)可知,女士
Becausefilmis_______tolightitmustbekeptindarknesstoavoidexposureunderthesun.
Thecommunicationsexplosionisonthescaleoftherail,automobileortelephonerevolution.Verysoonyou’llbeabletorecord
A、Food.B、Healthcare.C、Cleaning.D、License.A本题考查细节。由句(10)可知,女士说养宠物最大的开支可能是食物。因此A为答案。
Theencouragingfactoristhatthe______majorityofpeoplefindtheideaofchangeacceptable.
SocialHistoryoftheEastEndofLondon1.lst-4thcenturiesProducefromtheareawasusedto【T1】______thepeopleofLondon.
随机试题
上腔静脉注入心脏的部位是()
下列哪项属于腹膜刺激征()
大气卫生标准中规定日平均最高容许浓度,其目的是为了防止污染物的
施工单位应当根据本单位的实际情况,按照法律、法规、规章和工程建设标准强制性条文的要求,制定有关施工安全生产的具体规章制度。下列属于施工安全生产规章制度的有()。
业务4闲置房产应缴纳房产税()万元。
以下为某银行转账支票背书签章的示意图。该转账支票背书连续,背书有效。()
为深入推进党风廉政建设和反腐败斗争,全面开展从严治党,党中央从各方面制定和采取了多种重大举措,下列不属于这些举措的是()。
下列选项中属于面向对象设计方法主要特征的是
Tony______sincehewaslaidofflastmonth.
A、Hedoesn’tthinkthatJohnisill.B、HeisawarethatJohnisill.C、HethinksthatperhapsJohnisnotinverygoodhealth.D
最新回复
(
0
)