New Features

New or revised reading texts
Extra reading and extension work for more able pupils
Professionally made audio-recordings
Updated References to modern technology and science
Quarterly formative assessments in the student's books

Features Of Book 4

Dialogues to introduce the functions of Spoken English
A systematic approach to vocabulary and word formation
A variety of listening activities
Grammar study at word level, sentence level, and text level

Components: 

Students book introductory to 5
Teaching guide introductory to 5
Audio-recording introductory to 5