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、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
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.
采用浅层平板载荷试验检测某桥梁工程地基承载力和变形模量。已知该工程地基土为淤泥质
在β系数运用时()。 Ⅰ.牛市时,在估值优势相差不大的情况下,投资者会
普通肝素的抗凝机制不包括A.抗因子ⅨaB.抗因子ⅩaC.抑制纤溶D.抗凝血酶作用
审计人员编制的银行存款余额调节表属于()。A.实物证据 B.
从所给四个选项中,选出最合适的一个填入问号处,使之呈现一定规律性: A.如图所
在一次社会工作者召集的社区居民座谈会上,王大爷说:“我觉得咱们社区的健身设施太旧
适用于和法的证型A.邪犯少阳 B.肝脾不和 C.肠胃寒热 D.气血营卫失和
有助于判断交通支瓣膜功能的检查是 A.Perthes试验B.Trend
(2021年真题)荆芥的采收时间应为A.果实成熟期 B.果实成熟前 C.茎叶
最新回复
(
0
)