Curator (园长) Sarah Forsyth said："We believe Milly made up the signal and over the past five years some of the younger mandrills have picked it up.We're not sure why she started doing it but it could be as simple as 'I can't see them，so they can't see me'．It really does show you how intelligent mandrills are."

　　语篇解读：　Colchester动物园中的一只山魈发明了一个手势：用手捂住脸，传递的信息是：别理我或者是我不希望被人打扰。专家们认为这是一种猴子之间独特的交流方式。

　　5．What's the text mainly about?

　　A．How humans influenced monkeys.

　　B．A monkey invented a gesture.

　　C．A new social culture was discovered.

　　D．How experts made the new discovery.

　　解析：　主旨大意题。整篇文章都是围绕Milly发明了一种手语而展开论述的，故选B项。

　　答案：　B

　　6．What does the underlined word "solitude" in the second paragraph mean?

　　A．Aloneness. B．Comfort.

　　C．Protection. D．Respect.

　　解析：　词义猜测题。根据第一段最后一句中的Leave me alone！以及第二段中的give her some space可以猜测出该词意思是：独处。

　　答案：　A

　　7．The monkeys can also use the "do not disturb" sign to________.

　　A．protect themselves from being harmed

　　B．struggle against more powerful group members

　　C．show humans how intelligent they are

　　D．communicate with other species of animals

　　解析：　细节理解题。根据第四段第二句话可知：山魈也可以用此do not disturb手语来保护自己免受伤害。

　　答案：　A

　　8．What can be known from the text?

　　A．Milly invented the gesture when she was 15.

　　B．Mandrills are best known for their social ability.

C．Why Milly first used the sign language is known to experts.