题目内容：

    Recently, a group of scientists decided to find out what the funniest joke in the world was. This was obviously a difficult task, as no two people really agree about what is funny and what is not—especially when they are from different countries.

Here is the joke which the experts decided was the funniest joke in the world：

Two hunters were out in the woods. One of them fell to the ground. He didn’t seem to be breathing; his eyes were closed. The other hunter took out his mobile phone and called the emergency services.

“My friend is dead!” he cried to the operator. “What can I do？”The operator said，“Don’t worry. First, make sure he’s dead.” There was a silence, and then a shot was heard. Bang! The hunter’s voice came back on the line. He said, “OK, now what?”

This is perhaps amusing. Culturally, it depends on us knowing that often hunters are not considered to be very intelligent people, and that often they are quite violent. But perhaps this is not so all over the world. It’s also quite a “black” joke—a joke about something which isn’t really a funny subject. The experts also found the second funniest joke in the world. Here it is：

Sherlock Holmes and Dr. Watson went on a camping trip. After dinner, they went to sleep. Some hours later, Holmes woke up. “Watson, look up at the sky and tell me what you see.” “I see millions of stars, Holmes,” replied Watson.

“And what do you infer from that? ”

“Well, there are billions of stars ... we are a small part of the universe ...”

“Watson, you idiot!” he said. “Someone has stolen our tent!” I personally think this is better.

Can scientists in the end decide what is funny? Some things are much too complicated, even for scientists.

1.What can we learn from the first paragraph?

A.Few jokes can make scientists laugh.

B.Only scientists can find out the funniest joke.

C.There are different jokes in different countries.

D.People hold different opinions about what is funny.

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.

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

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