题目内容
Just like children, baby animals spend countless hours at play. After studying animal play for many years, scientists recognize that young animal play is practice for adult behavior. Today this play is roughly divided into the following groups.
Locomotor play refers to the movements animals carry out in their play. Running, leaping, turning, and kicking are some of the most common examples of locomotor play. An adult deer may run, leap, and twist(曲折前进) to escape its attackers. Play movements like these surely make young animals nimble. Someday these skills might help save their lives.
Moving forward slowly, attacking suddenly .and biting are examples of predatory play that help young predators(食肉动物) prepare for a life of running after and taking hold of other animals. Wild cats, wolves, and bears are predators. It is very common to see these young animals play this kind of games which sharpen their skills and teach them about their strengths and limitations.
For children, playing with toys is both fun and educational. It helps improve their hand and eye movements as well as develop hand skills to accomplish tasks. It is the same with animals. Young chimpanzees improve their hand skills while playing with sticks. Birds also play with things in ways that teach. Swallows drop and recover feathers in mid air. Diving suddenly to catch the feathers is good practice for catching flying insects.
Social play helps animals learn how to behave when they run into other animals. And it teaches animals about communication. An animal gives signals to let another animal know it wants to play. Many animals give signals by showing a " play face" . In some ways this face is like a human smile; the animal holds its mouth in a relaxed and open manner. During play-fights, some animals may step backwards to signal that they are playing and not acting seriously.
Until now, scientists have understood playful acts help prepare animals for their serious adult situations. But the numbers of playful species and examples of animal play are vast. The purpose of animal play may have meanings scientists have not discovered yet.
1.The main purpose of the text is to ______.
A. ask us to take good care of wild animals
B. encourage us to learn more about animals
C. entertain us with interesting animal stories
D. show us something about animal behavior
2.The underlined word "nimble" in Paragraph 2 can best be replaced by______.
A. cruel B. swift
C. curious D. strong
3.Which of the following belongs to predatory play?
A. A deer runs, leaps, and turns.
B. A chimpanzee plays' with a stick.
C. A lion moves slowly and makes an attack suddenly.
D. A dog holds its mouth in a relaxed and open manner.
4.Based on Paragraph 5, a " play face " is______.
A. a type of signal between animals
B. a name for a kind of animal play
C. an activity that involves adult animals
D an action that is taught to another animal
5. Which of the following shows the structure of the text?
1.D
2.B
3.C
4.A
5.B
【解析】
试题分析：本文主要通过对小动物和儿童的比较，揭示两者都在玩耍和娱乐活动中学习和增强自己的各方面能力，以及社会活动对他们交际能力的提升等现象，这些都为他们长大后面对复杂的社会环境做了一定的准备。
1. studying animal play for many years, scientists recognize that young animal play is practice for adult behavior. 可以推断，其他三项不符题意，科学家们主要是要研究动物的行为举止，故选D。
2. movements like these surely make young animals nimble. Someday these skills might help save their lives.根据句意可知运动可以帮助动物保住性命，因此应该是让它们变得更加敏捷，更易逃脱，故选B。
3. forward slowly, attacking suddenly .and biting are examples of predatory play that help young predators(食肉动物) prepare for a life of running after and taking hold of other animals.可以判断选项C是动物掠食性的举动，故选C。
4. animal gives signals to let another animal know it wants to play. Many animals give signals by showing a " play face" .可知动物之间互相发送信号， 故选A。
5. this play is roughly divided into the following groups.的提示和全文内容来看，作者采用的是总分总的结构，并将动物幼崽和小孩子进行了比较，故选B。
考点：考查社会调查类阅读
