题目内容：

    There is such a group of singers in the western musical circle at present, who enter the business as online celebrities(名人)and then become top idols and giant stars globally.They become popular for their videos online and then they are discovered by talent agents and gradually cause huge storms in the musical circle.For example, Troye Sivan, a singer who is nicknamed “chuoye”, became popular on You tube from an early age.

As a popular video sharing website, You Tube has given rise to plenty of stars, creating a new celebrity culture.Providing a platform where anyone can post videos, You tube presents the opportunity for anyone to achieve fame by simply uploading a short video.Sivan has been making you tube videos since he was 12 to show his singing talent.In the digital age, Sivan has already developed large devoted audience online and his sensitive video blogs have earned him extreme popularity.

A.survey has showed that US teenagers are more attracted with You Tube stars, which is a surprising result.You Tube stars are judged to be more attractive, outstanding and related than traditional stars.Looking at the survey comments and feedback, teens enjoy a close and real experience with You Tube celebrities, who aren't carefully directed by design.Teens also say they appreciate YouTube stars sense of humor and risk-taking spirit, which are often limited by Hollywood stars.As a result, singers who make their first show in the traditional way no longer have a complete advantage in front of the audience.Online platforms open up a lot of doors for people.They become the best place to be discovered.

1.How do online celebrities become popular?

A.By acting in Hollywood.

B.By writing blogs on the website.

C.By posting their videos online and gain recognition.

D.By meeting audience across the country.

2.Why does the writer mention Troye Sivan in Paragraph I and Paragraph 2?

A.To give an example of becoming successful by working hard.

B.To give an example of becoming a well-known singer with the help of the website.

C.To give an example of holding a successful concert.

D.To give an example of sticking to great determination.

3.What can we infer about Hollywood stars according to the last paragraph?

A.They never give performances online.

B.They are more outstanding than YouTube stars.

C.They write less sensitive video blogs than YouTube stars.

D.They are less humorous and risk-taking than YouTube stars.

4.What is the author’s attitude towards online platforms like You Tube?

A.Positive. B.Negative.

C.Uncaring. D.Doubtful.