2．What does the author think of the first joke?

　　A．It is not so funny as the experts thought.

　　B．It is really the funniest joke he has ever heard.

　　C．It can greatly affect readers' attitudes toward hunters.

　　D．It shows that not all hunters are brave and intelligent.

　　解析：选A　推理判断题。根据第四段中的"This is perhaps amusing ... It's also quite a 'black' joke - a joke about something which isn't really a funny subject."可知，作者认为第一个笑话不如专家认为的那样好笑，它充其量只是个"黑色幽默"。

　　3．We can learn that a person's understanding of a joke can be affected by ________.

　　A．the reader's feeling

　　B．the length of the joke

　　C．the reader's cultural background

　　D．the language that the teller uses

　　解析：选C　推理判断题。根据第四段中的"Culturally, it depends on us knowing that often hunters are not considered to be very intelligent people ..."可知，一个人对某个笑话的理解受其文化背景的影响。

　　4．Which of the following is the best title for this passage?

　　A．Uninteresting jokes

　　B．Different kinds of jokes

　　C．The funniest jokes in the world

　　D．Tips on how to make others laugh

　　解析：选C　主旨大意题。本文主要讲的是科学家试图找出世界上最好笑的笑话，但是不同的人持有不同的观点。

　　B

　　Opening in 1934, the Brookfield Zoo quickly received a worldwide reputation for its special displays and unique exhibits.

　　Address：1st Avenue between Ogden Avenue and 31st Street, Brookfield, Illinois

　　Phone: 708­688­8000

　　Getting to the Brookfield Zoo by Public Transportation：

　　The Metra Rail Burlington Northern line runs from Union Station downtown to the "Zoo Stop" (Hollywood Station) and from there it's only a 2­block northeast walk to the zoo.

　　Driving from Downtown：

Drive along the Eisenhower Expressway west to First Avenue exit. Head south about 2.5 miles and follow the signs to the zoo entrance.