专家解析大学英语四级考试历年阅读真题(十三)6

专家解析大学英语四级考试历年阅读真题(十三)6Questions 21 to 25 are based on the following passage.　　Sign has become a sc

专家解析大学英语四级考试历年阅读真题(十 三)6 Questions 21 to 25 are based on the following passage. Sign has become ascientific hot button. Only in the past 20 years have specialists in language study realized that signed languages are unique—a speech of the hand. They offer a new way to probe how the brain generates and understands language, and throw new light on an old scientific controversy: whether language, complete with grammar, is something that we are born With, or whether it is alearned behavior. The current interest in sign language has roots in the pioneering work of one rebel teacher at Gallaudet University in Washington, D. C., the world’s only liberal arts university for deaf people. When Bill Stokoe went to Gallaudet to teach English, the school enrolled him in acourse in signing. But Stokoe noticed something odd: among themselves, students signed differently from his classroom teacher. Stokoe had been taught asort of gestural code, each movement of the hands representing aword in English. At the