题目内容：

Happiness is associated with smiling. But do we always smile when we are happy?

During the Olympic Games in Barcelona in 1992, Spanish researchers analyzed the facial expressions of 22 gold medal winners at the medal ceremonies. The researchers were surprised to see that these medal winners didn't smile very much. In fact, throughout the different medal ceremonies, they only smiled about 10% of the time. But during the brief moment when the gold medal was put around their neck, the medal winners grinned (露齿笑) about 70% of the time.   

The researchers interviewed the winners they had watched to find out how they felt. All the winners interviewed said that they felt intensely(强烈的）happy throughout the ceremony.   

Though they were profoundly（衷心地）happy, they didn't smile a great deal. The researchers concluded that smiling was not the automatic expression of happiness. The fact that the gold medal winners smiled much more when they were actually being given their medals could be explained because, according to the Spanish researchers, smiling was a form of communication between individuals. The happy athletes were smiling at the people who were giving them gold medals. Perhaps we can support the findings of the Spanish researchers by making some observations of our own behaviors. When we are all alone, for example, do we smile at ourselves when we are happy? Probably not very often. If someone greets us with a friendly smile, do we respond with a smile? Yes, we probably do. When a friend gives us a beautiful present, will we show our appreciation with a smile? Yes, of course. But if we are sitting alone watching television, do we smile at a commentator (讲解员) who smiles at us?

 How much of the time did the gold medal winners smile during the medal ceremonies?

       A. 10%.   B. 70%.   C. 22%.   D. 92%.

【小题２】According to the passage, when did the athletes smile quite a lot?

        A. Throughout the medal ceremony.             

B. When they were informed of their success.

       C. When the gold medal was put around their neck. 

D. When their national flag was raised.

【小题３】 According to the passage, on which of the following occasions would we most probably NOT smile?

A. When we are sitting alone watching TV.   

B. When someone greets us with a friendly smile.

C. When a friend gives us a beautiful present. 

D. When we feel intensely happy.

【小题４】According to the passage, which of the following statements is TRUE?

A. The gold medal winners were too nervous that they would hardly smile at the medal ceremonies.

B. People will always smile automatically when they feel happy.

C. Smiling is a way of communication.

D. When the gold medal was put around their neck, the gold medal winners were smiling at the audience but not at those who gave the medal.