共用题干 The Greatest Mystery of WhalesThe

练习题库2022-08-02  21

问题 共用题干The Greatest Mystery of Whales
The whale is a warm-blooded,air-breathing animal,giving birth to its young alive,sucking them-and, like all mammals,originated on land.There are many______(51)of this.Its front flippers(鳍状肢), used for steering and stability,are traces of feet.
Immense strength is______(52)into the great body of the big whales,and in fact most of a wha'e'sbo衡is one gigantic muscle.The blue whale's pulling strength has been estimated______(53) 400 horsepower.One specimen was reported to have towed(拖)a whaling vessel for seven hours at the______ (54)of eight knot(节).
An angry whale will______(55).A famous example of this was the fate of Whaler Essex,______(56)was sunk off the coast of South America early in the last century.More recently,steel ships
have ___________( 57 ) their plates buckled(使弯曲)in the same way.Sperm whales(抹香鲸)were known to seize the old-time whaleboats in their jaws and crush them.
The greatest______(58)of whales is their diving ability.The sperm whale dives to the bottom for his ______(59)food,the octopus(章鱼).In that search he is known to go as far down as 3,200 feet,where the ______(60)is 1 ,400 pounds to a square inch.Doing so he will______(61)underwater as long as one hour.Two special1 skills are involved in this storing up enough______(62)(all whales are air-breathed ) and tolerating the great change in pressure.Just how he does it scientists have not______(63).It is believed that some of the oxygen is stored in a special______(64)of blood vessels,rather than just held in the lungs.And it is believed that a special kind of oil in his head is some sort of a compensating mechanism that ______(65)adjusts the internal pressure of his body.But since you can't bring a live whale into the laboratory for study,no one knows just how these things work.52._________A:worked B:divided C:builtD:moved

选项 52._________
A:worked
B:divided
C:built
D:moved

答案 C

解析 第一段讲到鲸鱼和所有其他哺乳动物一样来源于陆地,最后一句举了一些例子来说明这一点。sign的意思是“符号,特征,迹象”,而空白处所在句是说有很多迹象表明鲸鱼来自陆地,故选B项。aspect方面,层面;way方法,方式;reason原因。
build into…的意思是“使……成为……的组成部分”,这里指鲸鱼具有巨大的力气。其他几个选项意思上讲不通。work工作,运行;divide划分;build建立,逐渐增强;move移动。
at表示“(速度、比率等)以,达”; horsepower表示“马力”。
rate表示“速度”,而空格后的“knot”是速度单位,表示每小时一海里,选D意思才讲得通。
此题必须根据上下文的意思来做。由后文中捕鲸船被击沉、钢船被击毁的事例可知,鲸鱼被惹怒后会攻击船只,所以选B0 abandon放弃;attack攻击;leave离开;board登(机),上(船)。
这里是一非限制性定语从句,先行词为物,并且关系代词作主语,应用which来引导,故选C。
" have sth.done”是常用表达,表示某事被做。operate操作;see看到,看见;catch抓住。
本题所在句子为该段主题句,谈的是鲸鱼的潜水能力。鲸鱼的潜水能力很强,能下潜到很深的地方并在水下停留长达1个小时之久,科学家们不解,所以说是个谜,故选D。 interest兴趣;job工作;danger危险,危害;mystery谜。
虽然本题的几个选项都能与food搭配,但从上下文意思来讲,只有A正确。favorit。最喜爱的;fast快速地;new新的;sufficient充足的。
空格后面说的是每平方英寸1400磅,用的是压强单位,故选B0 depth深度;pressure压强;level水平;size尺寸。
待在水下要用动词remain,其他几个动词放入空格处意思讲不通。set设置;become变为;remain保持,逗留;rest休息。
此题也必须在读懂上下文意思的基础上才能作出判断,这里指鲸鱼储存氧气,故选D。heat热量;energy能量;food食物;oxygen氧气。
这里是说关于鲸鱼为什么能够在水下承受巨大的压力,科学家们还没有找到答案。选项中的determine的意思是“确定”,此词放入空格处意思讲得通,其他几个选项讲不通,故选B。witness见证;apply运用;calculate计算。
special虽然和几个选项都能搭配使用,但只有选项A意思上讲得通,故A为正确答案,此处是指氧气储存在特殊的血管系统中。system系统;place地方;arrangement安排;equipment设备。
此题亦需根据上下文的意思作出判断。automatically的意思是“自动地”。mentally心理上地;artificially人工地;manually手工地。
转载请注明原文地址:https://www.tihaiku.com/zcyy/1491299.html
本试题收录于: 理工A题库理工类分类

最新回复(0)