Unit 4 Public transport• 1. distant (Line5) adj. far away in the distant past/future: far away in the past or future:distance n. [C or U] the amount of space between two places:He travels quite a distance (= a long way) to work every day. Does she live within walking distance of her parents?高考链接•The faces of four famous American presidents on Mount Rushmore can be seen from a _____ of 60 miles. （ 2004 全国） A. length B. distance C. way D. space2. boundary: n. -- the edge (Line5) The mountain becomes the national ~ for both countries. The fence serves as a ~ between the two buildings. the boundaries of knowledge3. historic: adj. -- having importance in or influence on history (Line 6) 11 November 1918 is a ~ day as it represents the end of World War I. Can you tell me when the ~ meeting between the two great leaders was held? This building is of ~importance. historic / historical:Historic and historical are differentiated in usage, though their senses overlap. Historic refers to what is important in history: the historic first voyage to outer space It is also used of what is famous or interesting because of its associationwith persons or events in history: a historic house Historical refers to whatever existed in the past, whether regarded as important or not: a historical character Historical refers also to anything concerned with history or the study of the past: a historical novelhistorical discoveriesThe differentiation between the words is not complete. They are often used interchangeably:historic times or historical times • 4. choke (Line8) n. [C] v. 窒息；堵塞；阻塞 1). The child swallowed a pen and chocked to death. 2). The roads to the coast were choked with traffi...
