题目内容：

    You're searching the Internet and find a website with interesting articles. Some are news stories. They are for sharing information. Others only look like news stories. They're actually advertisements ( 广 告 ). They are there to get you to buy something. How do you tell the difference between a news story and an advertisement?

My research team showed teenagers the home page of a popular digital magazine (电子杂志 ). We asked them to show us a news story and an advertisement. Most were great at finding advertisements. So where did kids find it more difficult?

Some advertisements seem to be very similar to real news stories. They have headlines. But they may also have the words sponsored information. Sponsored means "paid for", and the information is the story. "Sponsored information" is a way of saying that something is an advertisement. It means someone paid money for it to be there. Most kids in our study, even if they used the Internet often, didn't know this.

As a reader, you need to look carefully. Sometimes, the advertisements are in very small letters. The Internet is a big sea of information. To use it well, we not only have to know how to swim but also how to avoid the sharks. Learning to tell the difference between an advertisement and a news story is important to be Internet smart.

1.The news stories on a website are for_______ .

A.selling things B.sharing information C.making something fun

2.What did the research team show to the teenagers?

A.A paper magazine. B.A digital magazine. C.A news website.

3.What does the underlined part headlines probably mean in Chinese?

A.头版 B.标题 C.头条

4.The sharks in the last paragraph could mean_______  .

A.the big sharks in the sea B.the news stories C.the advertisements

5.What is the best title of the passage?

A.Find News Stories on the Internet

B.Learn to Read the Advertisements

C.Be Internet Smart