C
① Laughter is a common "language" for humans. It helps us get along with others and build strong relationships. When we were babies, we giggled(咯咯笑) at our parents' funny faces. As we grow older, we learn to make others laugh too. But here comes an interesting question: Is laughter only a human thing? Scientists have been watching animals closely, and they found some amazing things.
② Have you ever seen a dog let you get close to its toy and then quickly run away playfully? Charles Darwin, a famous biology scientist, thought this was like a little joke dogs play. Marc Bekoff, a biology professor watched dogs playfully tease(捉弄) each other. They would walk slowly towards each other and then suddenly run away. He believed that dogs do this for fun and that animals might do it to deal with stress.
③ In 2024 study, Isabelle Laumer and her team studied four kinds of apes. They saw 18 different ways that apes teased each other. Young apes would quietly walk up behind an adult, give them a light push to surprise them, and then wait to see how the adult would react. This is just like what human children do when they play tricks. So, people may have started to be able to tell jokes and understand funny things a long time ago in human history.
④ What about laughing? While playing, dogs sometimes make a breathy sound that is like laughter. Dolphins make happy noises when they are play-fighting. Rats make a joyful squeak(吱吱声) similar to a giggle when people tickle them, says Jeffrey Burgdorf, a professor at North-western University.
⑤ But, is a rat's giggle really a sign that it has a sense of humour? Are the apes just playing around for fun or do they just want to get attention? Why do animals tease and play tricks on each other? "In humans, humour can serve as an ice-breaker, helping us make friends and get closer to others," says Laumer. "We don't know if it's the same in apes or other animals, but it's possible."
()33. Who believes that animals tease each other to deal with stress?
A. Charles Darwin.
B. Marc Bekoff.
C. Isabelle Laumer.
D. Jeffrey Burgdorf.
()34. What do animals and humans have in common according to the passage?
A. They both laugh mainly when they feel stressed.
B. They both make the same sounds when laughing.
C. They always play tricks in exactly the same way.
D. They can both use playful behaviour to communicate.
()35. What can we infer from the passage about animals' laughing?
A. It is a sign that they want to get human's attention.
B. Animals' laughter plays the same role as humans' laughter.
C. Animals make laughing sounds just to copy human behaviour.
D. Different kinds of animals have their own ways to show "laughter".
()36. Which of the following best shows the structure of the passage?

A.
B.
C.
D.

C
文章大意:本文主要讲述了科学家通过观察发现动物存在类似人类幽默和发笑的行为,探讨动物是否具有幽默感这一有趣话题。
33. B 解析:细节理解题。根据第二段中“Marc Bekoff, a biology...to deal with stress.”可知,Marc Bekoff认为动物互相逗弄是为了应对压力。故选B。
34. D 解析:细节理解题。通读全文可知,文中提到狗会逗弄、玩耍,发出类似笑声的声音,猿类会像人类小孩一样搞恶作剧,以及不同动物都有类似有趣的行为等内容。由此可知动物和人类都能用好玩的行为进行交流。故选D。
35. D 解析:推理判断题。根据第四段中“While playing, dogs...when people tickle them,”可知,不同动物都有自己表现“笑”的方式。故选D。
36. C 解析:篇章结构题。根据第一段“But here comes...only a human thing?”可知,文章开篇引出“动物是否有幽默感”这一问题,然后第二、三、四段分别从不同动物的有趣行为进行阐述,第五段最后提出关于动物幽默行为的疑问并进行总结性思考,整体呈现总分总结构。故选C。