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
2023-11-18
64
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] It is difficult to predict what would happen when a snake meets a man because
选项
A、no one has ever clearly known how he himself was bit.
B、man tends to be subjective when he describes his encounter with a snake.
C、the aggressiveness of the snakes diversify according to different situations.
D、a snake does not begin to attack without provocation.
答案
C
解析
推断题。第2段的最后两句由so连接,显然倒数第2句是原因,末句是结果。倒数第2句中第1个分句才是导致末句的原因,据此本题答案为选项C。
转载请注明原文地址:http://tihaiku.com/zcyy/3198333.html
相关试题推荐
Thereisarealpossibilitythattheseanimalscouldbefrightened,______asud
Whetherornotanimalsfeelisnotaltogetheraneasyquestiontoanswer.
_______one-celledorganisms,nearlyallanimalshaveanervoussystemofsomek
【C1】______snakes,lizards,andcrocodiles,turtlesbelongtotheclassof
【C1】______snakes,lizards,andcrocodiles,turtlesbelongtotheclassof
【C1】______snakes,lizards,andcrocodiles,turtlesbelongtotheclassof
【C1】______snakes,lizards,andcrocodiles,turtlesbelongtotheclassof
【C1】______snakes,lizards,andcrocodiles,turtlesbelongtotheclassof
【C1】______snakes,lizards,andcrocodiles,turtlesbelongtotheclassof
【C1】______snakes,lizards,andcrocodiles,turtlesbelongtotheclassof
随机试题
ToMyDearandLovingHusbandisapoemby______whopublishedtheveryfirstcol
顶级的first-class;top
[originaltext]Somekindsofmentalskillsnaturallydecreaseaspeopleget
StatisticsfromChina(1)bemindboggling:1.2billion(2),1.73trillion
钢筋焊接接头抗拉试验说法正确的是( )。A.3个热轧钢筋接头试件抗拉强度均小于
古希腊原子认者认为,“原子”是世界的唯一本原。()
“平行教育原则”体现的德育原则是( )A.严格要求学生与尊重信任学生相结合原则
《幼儿园教育指导纲要(试行)》指出:教师的态度和()应有助于形成安全、温馨的心
宏观经济指标可分为()。A:先行性指标 B:同步性指标 C:滞后性指标 D
全口义齿初戴时,用双手交替加压检查时,发现上颌义齿左右翘动。最常见原因是A.义齿
最新回复
(
0
)