阅读理解 训练题 1. Every two weeks, the time period after which many people collect a paycheck, a language dies. So concerning is the potential for language loss that the National Science Foundation launched the Documenting Endangered Languages program to advance knowledge related to endangered human languages. The launch of the program is even more urgent given the fact that about half of all current languages being used in the world have been classified in varying degrees of endangerment. At the University of Arizona, which is an important site for language preservation, a number of researchers are involved in activities meant to document endangered and lost languages. Others are working to help preserve languages classified as "moribund", meaning that no children are learning their native languages as their first languages in their own homes. A number of UA programs—some of them decades old—are dedicated to language preservation. Most recently, Christian Ruvalcaba, a graduate student, launched "The Language Capital Project" and created maps for corresponding website to help non-national language speakers to find and connect with one another. "Languages allow people to create an identity for themselves and as community members," said Elizabeth Kickham, a visiting professor in the UA Department of Linguistics. "Language is so closely tied to culture: it not only reflects cultural practices, it is also influenced by them. Language and culture influence each other, so it's difficult to separate them. You can, but you will lose something when you do." "One of the advantages of studying at the University of Arizona is the wealth of linguistic diversity to be found among the student population," said Kickham, who involved her students in language preservation training this semester. "Exposure to diverse populations, including languages, enables a richer understanding of the human experience," Kickham said. "Languages are beautiful. When peopl