题目内容：

Where can you go to listen to important people talk about important subjects? BigThink.com is a new website that allows Internet users to discuss certain topics with world experts (专家). Subjects discussed on BigThink include the environment, music and questions about happiness and personal identity. The website has been called a YouTube for thinkers. Victoria Brown and Peter Hopkins created BigThink.com. They said that people needed an international place to communicate with each other and discuss the important issues (话题) of our times. On the BigThink website, when you click on a subject, you will find a video of a person talking about his or her ideas. For example, you can listen to United States Senator Ted Kennedy talking about education and other things. Besides, you can read the comments and questions written by other visitors to the website. More than one hundred experts have expressed their ideas on the website. BigThink’s creators (创建者) started the website by first getting famous people to agree to be videoed. They began by interviewing several well-known professors from Harvard University. Then they used the names of these professors to gain the trust of others and get them to take part in the project. The website says BigThink belongs to everyone. Its motto (格言) is: "We are what you think." So, go online and start thinking big.

1.BigThink.com was created to ________.

A. discuss important people

B. show Internet users funny videos

C. introduce the latest IT knowledge and help Internet users solve problems

D. offer Internet users the chance to communicate with experts

2.If you visit BigThink.com, you can ________.

A. listen to your favorite music

B. chat with thinkers face to face online

C. communicate with people worldwide

D. get an online education

3.Why did the creators of BigThink.com start interviewing famous people?

A. To get their agreement to be videoed.

B. To gain their trust for the website.

C. To attract people’s attention to the website.

D. To use their names in discussions.

4.What’s the text mainly about?

A. How to set up one’s own website.

B. A brief introduction to BigThink.com.

C. What to do on BigThink.com.

D. The importance of sharing ideas with others.