首页
登录
职称英语
Naturally, in a group of animals as diverse as the snakes, and with so many
Naturally, in a group of animals as diverse as the snakes, and with so many
游客
2024-10-22
40
管理
问题
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.
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 heating 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.
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. [br] 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
推断题。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://tihaiku.com/zcyy/3812896.html
相关试题推荐
Naturally,inagroupofanimalsasdiverseasthesnakes,andwithsomany
Theevolutionofsexratiohasproduced,inmostplantsandanimalswithse
Whatcanweinferfromthepassage?[br][originaltext]Animalsperformmany
Whatcanweinferfromthepassage?[br][originaltext]Animalsperformmany
Whatcanweinferfromthepassage?[originaltext]Animalsperformmanyuseful
Naturallytheyoungaremoreinclinedtonoveltythantheireidersanditi
Naturallytheyoungaremoreinclinedtonoveltythantheireidersanditi
Thereisarealpossibilitythattheseanimalscouldbefrightened,______asud
Thereisarealpossibilitythattheseanimalscouldbefrightened,______asudde
Thereisarealpossibilitythattheseanimalscouldbefrightened,______asud
随机试题
Intermsofliveslostandpropertydestroyed,theCivilWarwasthemostte
Itisgenerallyacknowledgedthatyoungpeoplefrompoorersocioeconomicbac
发生学生伤害事故,不必及时告知未成年学生的监护人,学校应当及时救助受伤害学生;有
物料提升机的吊笼处于最低位置时,卷筒上钢丝绳严禁少于()圈;钢丝绳应设置过路保
白色逆反射材料的亮度因数为()。A.≥0.19 B.≥0.23 C.≥0.
20世纪20年代美国贝尔电话实验室成立了以()为首的过程控制组,提出了过程理论
某单层橡胶制品仓库,建筑面积为1200㎡,按国家消防技术最低标准设置了各类消防设
山东是汉代“丝绸之路”的重要源头,()是当时全国的三大纺织中心,大量精致
(2016年真题)在未碾压成型并冷却的沥青路面上,压路机不得进行( )。 A
女,28岁,已婚未孕,进行性痛经。妇科检查:宫颈糜烂Ⅰ度,子宫正常大小,后倾,活
最新回复
(
0
)