文章大意：语言会灭绝吗？它又会带来怎样的后果？让我们保护语言。

　　1．What most probably caused the death of languages in the USA and Australia?

　　A．Habitats were lost.

　　B．Natural disasters struck.

　　C．Native cultures disappeared.

　　D．Foreign languages were spoken.

　　答案：C　细节理解题。由第二段第五句话“In fact, the latter is a much bigger threat and it is responsible for the extinction of a lot of languages in countries like the USA and Australia.”可知，应该是前面介绍的两种语言中的后者“...to sociological factors, like cultural assimilation, in which the culture of a minority group is gradually replaced by a stronger one(本族文化的消失)”应该为美国和澳大利亚的语言灭绝负责。

　　2．In Paragraph 3, the author states his opinion by ________

　　A．listing definitions

　　B．providing examples

　　C．presenting causes and effects

　　D．comparing with other opinions

　　答案：B　推理判断题。第三段第三句话举例证明作者的论点：应该尽可能多的保护语言。

　　3．What does the author really intends to tell us in the last paragraph?

　　A．Attempts may not produce the desired effect.

　　B．Environment is important in language protection.

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