Unit 18 Mainly revision

教学目标

掌握下列词语：
play on words, a large collection of, lay the table, by accident, on vacation, the dining car, move from side to side, get talking to another person, (have) in common( with), get in touch with, go through, or rather, be up to, on one's own, put the charge on the bill, turn up, in the rush hour, in the other direction, (be) determine(d) to do sth. , shout at, be angry with sb.