大学英语四级考试模拟题

Part I Reading Comprehension Passage OneQuestions 1 to 5 are based on the following passage:The horse came into existence before man on earth. Although the earliest remains of primitive horses have been found on the North American continent, many scientists believe this small species traveled over a land mass. In the Bering Sea to found the beginnings of the modern horse in Asia. It became extinct(绝种的) in America. Other scientists believe that the