首页
登录
职称英语
Many people like the gigantic whales. Human sympathy 【C1】______ whales is
Many people like the gigantic whales. Human sympathy 【C1】______ whales is
游客
2024-05-28
10
管理
问题
Many people like the gigantic whales. Human sympathy 【C1】______ whales is only natural of all the creatures in the sea. 【C2】______ are closer relatives to us than these warm-blooded mammals. And how they got into the sea is one of the most fascinating stories of 【C3】______ . Most authorities believe that 60 million years ago ancestors of modern whales were four-legged, wolf-size animals living on the sea shores, 【C4】______ an abundance of fish and shrimp tempted them to try wading. Over 10 to 15 million years, their bodies grew, forelegs shrank into flippers used for 【C5】______ and steering and hind legs disappeared. As a result of some amazing transformations, they arc now helpless on land. If stranded on a beach, they can barely breathe.
With abundant 【C6】______ of food, whales grew into the largest creatures that lived, 【C7】______ larger than dinosaurs. A blue whale can grow to 100 feet. Its tongue is ten feet thick and heavier than an elephant. Some arteries are big enough for a child to swim 【C8】______ . The half-ton heart has walls two feet thick and pumps eight tons of blood. 【C9】______ its size comes awesome strength. A blue whale swimming 【C10】______ 15 knots generates 1000 horsepower. 【C11】______ their size, these giants move at a good speed. An 18-ton whale can even 【C12】______ 12 m. p. h., over short distances. A whale can 【C13】______ up to 9000 pounds of food a day. The world’s biggest creature 【C14】______ itself almost entirely on shrimp-like krill, smaller than a person’s thumb.
Maternal instincts are also highly 【C15】______ . Because a calf is born underwater, the mother must get it to the surface before it 【C16】______ . Often another whale will help. The mother pushes it gently 【C17】______ the baby is confident with its swimming usually after about 30 minutes. If the calf is born 【C18】______ , she may support it on her back until it gradually rots away. Like all mammals, whale babies feed 【C19】______ mother’s milk. And the milk is more than 30-percent fat, over 10-percent protein, and the babies grow extremely fast. A blue whale calf lengthens 【C20】______ two inches a day and gains an average seven pounds per hour. [br] 【C5】
选项
A、breathing
B、balance
C、rest
D、eating
答案
B
解析
名词辨析题。本句介绍鲸鱼的身体进化的过程。此处主要描述鲸的前腿蜕变成前鳍过程。根据常识,鲸的前鳍是用来平衡身体的,故B)balance符合句意。A)breathing“呼吸”是鳃的功能;“休息”和 D)“吃东西”均不符合常识,均排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3609801.html
相关试题推荐
[originaltext]ThemostinfluentialpeopleandwebsitesinChina’sboomingInter
[originaltext]ThemostinfluentialpeopleandwebsitesinChina’sboomingInter
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
Manypeoplelikethegiganticwhales.Humansympathy【C1】______whalesis
随机试题
Thereareoccasionswhengivingagift______spokencommunication,sincetheme
InNewOrleans,MoonWalk——apathwayalongastretchoftheMississippi--no
Oldfriends,theyfinishyoursentences,theyrememberthecatthatranaway
下列情形不需要办理相应的登记的是()。A.机动车借与他人使用的 B.机动车登
DDST的最适年龄范围在A.0~4.5岁 B.0~2岁 C.0~1岁 D.
背景资料某教学楼工程,建筑面积1.7万平方米,地下一层,地上六层,檐高25.2m
患者,男性,58岁。糖尿病病史30余年。目前使用胰岛素治疗,但血糖未规律检测。近
吹拉弹唱属于()技能。 A.认知B.心智 C.操作D.评价
安静顺从的儿童在同伴群体中的人气特点是()。单选A.受尊重 B.受欢迎 C.
某生产喷雾器的农机厂为增值税一般纳税人,2019年3月生产销售农用喷雾器,取
最新回复
(
0
)