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
25
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、Its enormous size.
B、Its plant-like appearance.
C、Its instant response.
D、Its offensive smell.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3395789.html
相关试题推荐
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Liverpoolwasonlywell-knownasoneofBritain’slargestpor
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Almosttwo-thirdsofchildrenwanttheirparentstospendmore
[originaltext]Itisagreatprivilegeformetobeinvitedtospeakatthe
[originaltext]Itisagreatprivilegeformetobeinvitedtospeakatthe
[originaltext]Itisagreatprivilegeformetobeinvitedtospeakatthe
[originaltext]Mrs.Joneswasovereighty,butshestilldroveheroldcarlike
[originaltext]Mrs.Joneswasovereighty,butshestilldroveheroldcarlike
随机试题
Heisa(desire)______companion.desirable本题测试的是词性转换。全句的意思是:“他是一位令人满意的伙伴。”desir
EveryyearinthefirstweekofmyEnglishclass,somestudentsinformmeth
Ascientistwhowantstopredictthewayinwhichconsumerswillspendtheir
群体决策的缺点有()。A.比个体决策需要更多的时间 B.由于从众心理会妨碍不
根据《房屋建筑与装饰工程工程量计算规范》GB50854-2013规定,关于地基处
某沥青混合料车辙试验结果如下表所示,请回答以下问题。(3)沥青混合料车辙试验中如
顾老师上绘画课时,以《学大师肖像》为题,要求学生经历“赏名作,学大师,搞创作,共
下列极限计算中,错误的是:
信息加工论认为,一系列问题状态和转变问题状态的算子构成了( )A、算子系列
按照进入市场的时间划分,发行金融资产的市场称为( )。A.特级市场 B.一级市
最新回复
(
0
)