Unit 1 CONNECTIONS
Chapter 1 Network of Friends
Simple present: Be
Present progressive
Chapter 2 Global Links
Simple present
Simple present vs. present progressive
Unit Assessments
Unit 2 ACHIEVEMENTS
Chapter 3 Child Prodigies
Simple past: Regular verbs
Simple past: Irregular verbs
Simple past: Wh- questions
Chapter 4 Late Blooomers
Simple past: Be
Past progressive
Unit Assessments
Unit 3 HEALTH AND FITNESS
Chapter 5 Keeping Fit
Imperatives
Suggestions: Why . . .?, Let's . . ., and How about . . .?
Adverbs of manner
Chapter 6 Push it to the limit!
Ability: Modals and expressions
Frequency: Adverbds and expressions
Unit Assessments
Unit 4 THE WORLD OF TRAVEL
Chapter 7 Ecotourism
Future: Will and be going to
Future: Questions
Possibility: Modals and expressions
Chapter 8 Your Travel Personality
Future: Simple present and present progressive
Future real conditional
Unit Assessments
Unit 5 THE POWER OF MUSIC
Chapter 9 Music and Social Change
Present perfect
Present perfect: For and since
Chapter 10 How Music Helps
Present perfect: Just, already, yet
Present perfect vs. simple past
Unit Assessments
Unit 6 EDUCATION
Chapter 11 Today's Classrooms
Count and noncount nouns
Quantifiers
Desires: Expressions with wish
Chapter 12 Mission Possible!
Pronouns
More quantifiers
Unit Assessments
Unit 7 RELATIONSHIPS
Chapter 13 Talking the Talk
Enough and Too
Permission: Modals and expressions
Requests: Modals and expressions
Chapter 14 Different Strokes for Different Folks
Reflexive and reciprocal pronouns
Unreal conditional
Unit Assessments
Unit 8 INVESTIGATIONS
Chapter 15 Detective Work
Adjectve + preposition
Verb + preposition
Chapter 16 New Tricks of the Trade
Phrasal verbs: Inseparable
Phrasal verbs: Separable
Unit Assessments
Unit 9 FROM GARDEN TO TABLE
Chapter 17 Behind the Scenes
Present passive
Time signals
Chapter 18 Redefining Gardens: Urban Farming
Advice: Modals and expressions
Necessity: Expressoins
Unit Assessments
Unit 10 EARTH - AND BEYOND
Chapter 19 Earth's Neighbors
Adjectives: Comparatives
Adjectives: As ... as
Chapter 20 Extreme Space
Adjectives: Superlatives
Adverbs: Comparatives and superlatives
Unit Assessments
Appendices
A Contractions
B Simple present: Be
C Present progressive
D Spelling rules for -ing endings
E Simple present
F Spelling rules for -s endings
G Simple past: Regular verbs
H Spelling rules for -ed endings
I Simple past: Irregular verbs
J Irregular simple past verbs / Irregular past participles
K Simple past: Wh- questions
L Simple past: Be
M Past progressive
N Future: Will
O Future: Be going to
P Present perfect
Q Count and noncount nouns
R Pronouns and possessive adjectives
S Phrasal verbs
