题目内容：

    Laughter is part of the human language around the world. Unlike English or French, we don't have to learn to speak it, and we're born with the ability to laugh. Studies show that the first laughter appears at about 3.5 to 4 months of age, long before we're able to speak.

As the saying goes, "Laughter is the best medicine." Best of all, this priceless medicine is fun, free and easy to use. Nothing works faster to bring your mind and body back into balance than a good laugh. It helps relax your whole body leaving your muscles relaxed for up to 45 minutes. Laughter also helps you fight against diseases. It can improve the function of blood vessels (血管) and increases blood flow, which can help protect you against a heart attack.

And the good feeling you get when you laugh remains with you even a few minutes later.

It helps you keep a positive, optimistic attitude toward difficult situations, disappointments and losses. Laughter gives you the strength to find new sources of meaning and hope. Even in the most difficult days, a laugh or even simply a smile can go a long way toward making you feel better.

Shared laughter is one of the most effective tools for keeping relationships fresh and exciting. And it helps build strong and lasting relationships, and it unites people during difficult times. So it's necessary to create opportunities to laugh with others. More often, people are very happy to share something funny because it gives them an opportunity to laugh again. When you hear laughter, find it out and ask. "What's funny?" And you can make time for fun activities such as bowling, golfing or karaoke.

In short, the ability to laugh and have fun not only makes life more enjoyable but also helps you solve problems, connect with others, and be more creative. The more laughter there is, the more benefits you'll receive.

1.The author develops the second paragraph mainly by ______ .

A.telling stories B.providing examples

C.discussing questions D.showing research findings

2.Paragraph 3 mainly talks about ______.

A.the difficult times in one's life

B.the benefits of laughter to our mind

C.the physical health benefits of laughter

D.different ways to feel better about oneself

3.What would be the best title for the text?

A.Man—the Only Creature That Laughs

B.Laughing Makes Us Younger

C.Different Types of Laughter

D.Why Should We Laugh?