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Inside Unit x
a
Acknowledgments xvi
Credits xvii

UNIT] Family 2

Present and Past: Simple and Progressive

LESSON 1: Simple Present and Present Progressive 4
Reading: The Family Life of Lowland Gorillas 4
1.1. Simple Present and Present Progressive Review 6
1.2 More Present Progressive 7

LESSON 2: Stative Verbs 12
Reading: The Shrinking Families of Brazil 12
1.3 Stative Verbs 14
1.4. Stative Verbs: Stative and Active Meanings 15

LESSON 3: Simple Past and Past Progressive 18
Reading: Notes from the Twins Days Festival 18
1.5 Simple Past and Past Progressive Review 20
1.6 Past Time Clauses with When and While 21-22
Review the Grammar 26
Connect the Grammar to Writing: Write a Response to an Essay Question 28

UNIT2 Passions 30

Present and Past: Perfect and
Perfect Progressive

LESSON 1: Present Perfect 32
Reading: Paul Nicklen’s Polar Obsession 32
2.1 Present Perfect 34
2.2 Present Perfect with Forand Since 35
2.3 Present Perfect and Simple Past 36

LESSON 2: Present Perfect Progressive and Present Perfect 41
Reading: Helen Thayer: Lifelong Adventurer 4]
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2.4 Present Perfect Progressive 43
2.5 Present Perfect Progressive and Present Perfect 44

LESSON 3: Past Perfect and Past Perfect Progressive 48
Reading: Daring. Defiant. Free. 48
2.6 Past Perfect 50
2.7. Past Perfect Progressive 51
Review the Grammar 58
Connect the Grammar to Writing: Write a Personal Narrative 60

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