Unit One Match the Headings
Exercise 1.A Giant Step for Artifi Enzymes
Exercise 2.Population Growth and Food Supplv
Exercise 3.More Than Sympathy
Exercise 4.Energy from Biological Sources
Exercise 5.Sleeping Secrets
Exercise 6.It Never Rains
Exercise 7.Farmers Harvest the Wind
Exercise 8.Germs and Sickness in a Shrinking World
Exercise 9.On the Wing
Unit Two Cloze
Exercise 1.Standards of Measurement
Exercise 2.The Function of Carbon Dioxide in the Atmosphere
Exercise 3.The Properties of Systems in the Human Bodv
Exercise 4.Analysis and Synthesis
Exercise 5.The Properties of Elements.Compounds and Mixtures
Exercise 6.The Structure of the Earth
Exercise 7.The Carbon Cycle
Exercise 8.Vitamins
Exercise 9.Thermostats
Exercise 10.Pressure
Exercise 11.Importance of Nonverbal Communication
Exercise 12.Space and Distance
Exercise 13.Humour
Exercise 14.The Theory of Emotion
Exercise 15.Physical Characteristics
Exercise 16.Attitude Functions
Exercise 17.Contemporary Forms of Discussion
Exercise 18.Functions of Leadership
Unit There Cloze
Unit Four Multiple Choice
Unit five Summarizing
Unit Six Yes/No/Not Given
Unit Seven Scanning for Answers
Unit Eingt Integrated Exercises
Unit Nine Practice Tests
Answer Key
Appendices