题目内容：

    Experts say there are about 6，500 languages spoken throughout the world.But the United Nations estimates that about half of these languages are in danger of disappearing.

One non-profit organization seeking to save world languages is a New York-based group called Wikitongues.Officials from Wikitongues say the organization has a simple goal:to provide the tools and support that people need to save their languages.

Udell is the co-founder of Wikitongues.He said when a language disappears，many other things can go away as well.For example，parts of a community’s culture，knowledge and identity can also be lost.Because of this.Udell believes the process of bringing languages back must be done by community members themselves，“from the ground up，”he said.

“There is no way an outside organization can save someone’s language for them.”

Wikitongues was launched in 2016 as an open internet collection of world languages.The self-described“community”is operated by volunteers from around the world.The collection is in the form of language videos that people add to the Wikitongues website.

There are currently more than 400 languages and dialects represented on Wikitongues’YouTube channel.Udell says more than 1,500 people from 70 different countries have added videos to the system.

“We have people from India who record dozens of languages，which is beyond their own.”he said.

One of Wikitongues’volunteers is Kolokwe，who lives in Namibia.His native language is Subiya，however，he does not get the chance to speak his native language every day.Like many other educated people from his area，he speaks a lot of English and Afrikaans.

Kolokwe is hoping his involvement with Wikitongues call help keep Subiya and other African languages from going extinct.He wants the world to know about his language.But his goal goes beyond just sharing his language with others through video.He is also working to create a dictionary and language teaching materials that can be used in schools.

1.What is tile result of languages disappearing?

A. People are uncertain about who they are.

B. All the customs and beliefs are still existing.

C. People can not communicate with each other.

D. The community becomes more independent.

2.Which of the following is true of Wikitongues?

A. It was founded by the United Nations.

B. Officials from it want to make money.

C. It contributes to saving languages.

D. 1500 languages are uploaded on its website.

3.Why is Kolokwe involved in volunteering?

A. He has no chance to speak his native language.

B. He dislikes speaking English and Afrikaans.

C. He wants to stop his native language dying out.

D. He hopes to teach his language in school himself.

4.What can we infer from the opinion of Udell?

A. The majority of languages have been saved.

B. Wikitongues can save languages disappearing.

C. Internet plays a more important part than volunteers.

D. Only community members can save their own languages.