目录 Unit 1 (Lessons 1--4) Disneyland Unit 2 (Lessons 5--8) No smoking, please! Unit 3 (Lessons 9--12) Body language Unit 4 (Lessons 13--16) Newspapers Unit 5 (Lessons 17--20) Charlie Chaplin Unit 6 (Lessons 21--27) Mainly revision Unit 7 (Lessons 25--28) Canada Unit 8 (Lessons 29--32) First aid Unit 9 (Lessons 33--36) Saving the earth Unlt 10 (Lessons 37--40) At the shop Unit 11 (Lessons 41--44) Harricane! Unit 12 (Lessons 45--48) Mainly revision Key to Exercises · · · · · · (收起)