题目内容：

请认真阅读下面短文并用英语回答问题，将答案写在横线上。

Mother Teresa once said, "Every time you smile at someone, it is an action of love, a gift to that person" However, a recent survey showed that 25% of Chinese never smiled or smiled less than five times a day. It also found that 2~6 of Chinese were willing to smile at strangers.

To make a change, forty students from Shanghai Normal University started a team of "Smiling Volunteers". Their first smiling task was-to smile at all the visitors in the Shanghai Film Art Centre and ask if they needed their help. Not all students found it easy to smile all the time. "When volunteers help other people, smiling is the best way to make them understand that volunteers are ready and sincere(诚挚的),”one team leader said.

A teacher in charge of(负责)the team thought the team's work was not all fun and games. "Most of our students will be teachers after they leave university. Smiling is necessary for good teachers. We hope they can learn how to smile at each other, she said. Everyone smiles in the same language. So it's not important whether you are a teacher or not. After all, sincere smiling and helping hearts are the most important. If today you don't start a day with a smile, it won't be too late to start practising for tomorrow. Remember "The world always looks brighter from behind a smile."

1.How many Chinese never smiled or smiled less than five times a day?

2.What will most of the students be after they leave Shanghai Normal University?

3.Do you think smiling is necessary in your life? Why or why not?