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
2024-01-26
39
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/3395790.html
相关试题推荐
[originaltext]Americansthinkagreatdealabouttime.Theyconstantlyrefe
[originaltext]Mostkidsaremuchbetterthantheirparentsatprogrammingt
[originaltext]Someoftheplanet’smostpreciousanimalsandplantsaredis
[originaltext]Someoftheplanet’smostpreciousanimalsandplantsaredis
[originaltext]Someoftheplanet’smostpreciousanimalsandplantsaredis
[originaltext]Fortwenty-fiveyears,Iwasafull-timethief,specializing
[originaltext]Fortwenty-fiveyears,Iwasafull-timethief,specializing
[originaltext]"Gototheplaygroundandhavefun",parentswilloftensayt
[originaltext]Doyourememberatimewhenpeoplewerealittlenicerandge
[originaltext]Doyourememberatimewhenpeoplewerealittlenicerandge
随机试题
Thecostofstagingtheyear2000OlympicsinSydneyisestimatedtobeast
Bywritingthispassage,thewriterintendstotellusthat______.[br]Theamou
不属于承压水基本特点的是()。A.没有自由表面 B.受水文气象因素、人文因
必须按照国务院卫生行政部门的有关规定,严格执行消毒隔离制度,防止发生内感染和医源
关于损失厌恶,下列说法中正确的有( )。 Ⅰ损失厌恶是指人们对财富的减少比对
阿司匹林严重中毒时,正确的处理措施是A.静脉滴注大剂量维生素C B.口服氯化铵
消防技术服务机构对某商场内设置的湿式自动喷水灭火系统进行检测,现场询问得知,湿
( )又称稳定性或可信性,是指一个人在同一心理测量中几次测量结果的一致性。A.
在勘察设计招标文件中,以下( )属于发包人要求的内容。A.投标人须知 B.评标
某项目合同价1000万元,合同约定固定系数0.2。2009年5月
最新回复
(
0
)