首页
登录
职称英语
[originaltext] (23)Over time animals have developed many ways to stay away f
[originaltext] (23)Over time animals have developed many ways to stay away f
游客
2024-01-24
36
管理
问题
(23)Over time animals have developed many ways to stay away from predators (捕食性动物). A predator is an animal that kills and eats other animals. Hiding is one of the best ways to stay alive. Some animals hide by looking like the places where they live. To see how this works, let’s look at the sea dragon. It is a master of disguise. (24)The sea dragon is covered with skin that looks like leaves. The skin helps the dragon look like a piece of seaweed. A hungry meat-eater would stay away from anything that looks like seaweed. Other animals stay safe by showing their colors. They want other animals to see them. Scientists call these bright colors warning colors. You have probably seen animals that have warning colors. Some grasshoppers(蝗虫) show off their own bright colors. Those colors don’t just look attractive. They tell the enemies to stay away. Of course, hungry predators sometimes ignore the warning. They still go after the grasshopper. If that happens, the grasshopper has a backup defense. It makes lots of foam. The foam tastes so bad that the predator won’t do it again. Color doesn’t offer enough protection for some other animals. They have different defenses that help them survive in the wild. (25)Many fish live in groups. That’s because there is safety in numbers. At the first sign of trouble, schooling fish swim as close together as they can get. Then the school of fish makes lots of twists and turns. All that movement makes it hard for predators to see individuals in a large group.
23. What is the speaker mainly talking about?
24. What protects the sea dragon from a meat-eater’s attack?
25. According to the passage, why do many fish stay in groups?
选项
A、It helps improve their safety.
B、It allows them to swim faster.
C、It helps them fight with their enemies.
D、It allows them to avoid twists and turns.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3390006.html
相关试题推荐
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpic
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]Asinglecigarettesoldonastreetcornermaynotcostalot:
随机试题
一个长方体形木盒子的长、宽、高分别为6,8,10;一个圆柱形罐头被放置在长方体形盒子中,问在所有的罐头中有最大体积罐头的底面半径是多少?A、8B、6C、5
小曾、小孙、小石三个人是好朋友,他们每个人都有一个妹妹,且都比自己小11岁。三个
投标人和招标人或项目业主为了增加中标的几率,可以在项目投标人资格预审阶段向商业银
下列药物分子中含有二苯并氮杂(艹卓)结构的抗癫痫药是A、卡马西平 B、丙戊酸钠
护士在执行经外周静脉穿刺中心静脉置管术(PICC)过程中发现手套破损,此时应A.
患者,女性,51岁。身高155cm,体重75kg,因消化性溃疡少量出血入院检查。
与“指鹿为马”这一典故相关的历史人物是()。A.李斯B.赵高 C.韩非D
(2018年真题)《中华人民共和国银行业监督管理法》明确规定,银行业监督管理机构
关于商事登记,下列哪些说法是正确的:()A.公司的分支机构应办理营业登记
下列耐火材料中,属于按结构性能分类的是( )。A.碱性耐火材料 B.高级耐火
最新回复
(
0
)