Includes appendices, glossary of grammar terms and index.

''Grammar Explorer prepares students for academic success through captivating National Geographic content and assignments that mirror the requirements of academic life. Going beyond clear grammar charts and instruction, Grammar Explorer challenges students to think critically while using grammar in their listening, speaking, reading, and writing.'' (Publisher's Website)

CONTENTS

Inside a Unit

Unit 1 - FAMILY (Present and Past: Simple and Progressive)

Lesson 1: Simple Present and Present Progressive
Reading: The Family Life of Lowland Gorillas

1.1 Simple Present and Present Progressive Review

1.2 More Present Progressive

Lesson 2: Stative Verbs
Reading: The Shrinking Families of Brazil

1.3 Stative Verbs

1.4 Stative Verbs: Stative and Active Meanings

Lesson 3: Simple Past and Past Progressive
Reading: Notes from the Twins Days Festival

1.5 Simple Past and Past Progressive Review

1.6 Past Time Clauses with When and While

Review the Grammar

Connect the Grammar to Writing: Write a Response to an Essay Question

Unit 2 - PASSIONS (Present and Past: Perfect and Perfect Progressive)

Lesson 1: Present Perfect
Reading: Paul Nicklen's Polar Obsession

2.1 Present Perfect

2.2 Present Perfect with For and Since

2.3 Present Perfect and Simple Past

Lesson 2: Past Progressive and Present Perfect
Reading: Helen Thayer: A Lifelong Adventurer

2.4 Present Perfect Progressive

2.5 Present Perfect Progressive and Present Perfect

Lesson 3: Past Perfect and Past Perfect Progressive
Reading: Daring. Defiant. Free.

2.6 Past Perfect

2.7 Past Perfect Progressive

Review the Grammar

Connect the Grammar to Writing: Write a Personal Narrative

Unit 3 - A LOOK INTO THE FUTURE (The Future)

Lesson 1: Will, Be Going To, Present Progressive, and Simple Present
Reading: Will Robots Be Our Friends One Day?

3.1 Review of Will and Be Going To

3.2 Review of Present Progressive and Simple Present for the Future Time

Lesson 2: Future Time Clauses
Reading: Clever Clothes

3.3 Future Time Clauses

3.4 Future Time Clauses: After, As Soon As, Before, Once, Until, When, and While

Lesson 3: Future: Progressive, Perfect, and Perfect Progressive
Reading: Jobs for the Future

3.5 Future Progressive

3.6 Future Perfect and Future Perfect Progressive

Review the Grammar

Connect the Grammar to Writing: Write an Opinion about the Future

Unit 4 - EXPLORATION (Negative Yes/No Questions; Statement and Tag Questions)

Lesson 1: Negative Yes/No Questions and Statement Questions
Reading: Mars on Earth

4.1 Negative Yes/No QuestionsLesson

4.2 Statement Questions

Lesson 2: Tag Questions — Answers to Tag Questions
Reading: Borge Ousland, Norwegian Explorer

4.3 Tag Questions

4.4 Answering Tag Questions

Review the Grammar

Connect the Grammar to Writing: Write a Scene from a Story

Unit 5 - STAGES OF LIFE (Nouns, Articles, and Subject-Verb Agreement)

Lesson 1: Count and Non-Count Nouns — Quantity Expressions
Reading: Naming Customs

5.1 Count and Non-Count Nouns

5.2 Quantity Expressions with Count and Non-Count Nouns

Lesson 2: Articles
Reading: The Science of the Teenage Brain

5.3 Articles: Specific and Nonspecific

5.4 Articles: Making Generalizations

Lesson 3: Subject-Verb Agreement
Reading: How Long Will You Live?

5.5 Subject-Verb Agreement

5.6 More Subject-Verb Agreement

Review the Grammar

Connect the Grammar to Writing: Write a Narrative about a Risk

Unit 6 - WELLNESS (Gerunds and Infinitives)

Lesson 1: Gerunds: Review and Expand
Reading: The Mysteries of Sleep

6.2 Gerunds as Objects of Prepositions

6.3 Gerunds with Nouns and Special Expressions

Lesson 2: Infinitives: Review and Expand
Reading: Moko - Medical Riches in the Rainforests

6.4 Infinitives: Verb (+ Object) + Infinitive

6.5 Verbs Followed by Gerund or Infinitive without a Change in Meaning

6.6 Verbs Followed by Gerund or Infinitive with a Change in Meaning

Lesson 3: More about Gerunds and Infinitives
Reading: The Guitar Man

6.7 Infinitives after the Subject It — Infinitives after Adjectives

6.8 Too and Enough with Infinitives

6.9 Infinitives of Purpose

Review the Grammar

Connect the Grammar to Writing: Write a Product Review

Unit 7 - GLOBE TROTTING (Modals: Part 1)

Lesson 1: Necessity, Prohibition, Obligation, and Expectation
Reading: Best Dive Vacations International

7.1 Expressing Necessity and Prohibition

7.2 Obligation and Expectation: Be Supposed To

Lesson 2: Ability
Reading: Traveling Feet

7.3 Expressing Ability: Present and Future

7.4 Expressing Ability: Past

7.5 Be Able To: Gerunds, Infinitives, and with Modals

Lesson 3: Advice, Regret, and Criticism
Reading: WWOOFing It!

7.6 Asking for or Giving Advice

7.7 Expressing Regret or Criticism: Should Have + Past Participle

Review the Grammar

Connect the Grammar to Writing: Write an Informative Text

Unit 8 - OUR MYSTERIOUS WORLD (Modals: Part 2)

Lesson 1: Possibility and Logical Conclusions: Present and Future
Reading: The Weather That Nobody Forecast

8.1 Possibility: Present and Future

8.2 Logical Conclusions: Present and Future

8.3 Possibility and Logical Conclusions: Progressive

Lesson 2: Possibility and Logical Conclusions: Past
Reading: The Emperor's Terra Cotta Army

8.4 Possibility: Past

8.5 Logical Conclusions: Past

8.6 Possibility and Logical Conclusions: Past Progressive

Review the Grammar

Connect the Grammar to Writing: Write a Family History

Unit 9 - THE NATURAL WORLD (The Passive)

Lesson 1: The Passive — Passive with Modals
Reading: Sylvia Earle and the Deep Blue Sea

9.1 Active and Passive

9.2 Passive with Modals

Lesson 2: Using the Passive
Reading: Night Gardens

9.3 Using the Passive

9.4 Using By with the Passive

Lesson 3: Passive Gerunds and Infinitives — Get Passives
Reading: Hurricane Hunters

9.5 Passive Gerunds and Passive Infinitives

9.6 Get Passives

Review the Grammar

Connect the Grammar to Writing: Write an Informative Essay

Unit 10 - BEAUTY AND APPEAREANCE (Causative Verb Patterns and Phrasal Verbs)

Lesson 1: Have, Let, Make, Get, and Help
Reading: Who's the Loveliest of Them All?

10.1 Have, Let, and Make

10.2 Get and Help

Lesson 2: Passive Causative
Reading: Looking Good in Ancient Egypt

10.3 Passive Causative: Have Something Done

10.4 Passive Causative: Get Something Done

Lesson 3: Phrasal Verbs
Reading: Funny-Looking or Beautiful?

10.5 Phrasal Verbs: Transitive and Intransitive

10.6 Transitive Phrasal Verbs: Separable and Inseparable

Review the Grammar

Connect the Grammar to Writing: Write a Blog Entry

Unit 11 - THE POWER OF IMAGES (Relative Clauses)

Lesson 1: Subject Relative Clauses
Reading: Myphotospace

11.1 Subject Relative Clauses

11.2 Non-Identifying Subject Relative Clauses

11.3 Relative Clauses with Whose

Lesson 2: Object Relative Clauses
Reading: A Look Inside: Shooting the Real Story

11.4 Object Relative Clauses

11.5 Object Relative Clauses with Prepositions

Lesson 3: Relative Clauses: Reduced, with Where and When
Reading: Bollywood News: The Changing Face of Bollywood

11.5 Reduced Relative Clauses

11.6 Relative Clauses with Where and When

Review the Grammar

Connect the Grammar to Writing: Write a Movie Review

Unit 12 - THE RISE OF THE CITY (Adverb Clauses)

Lesson 1: Adverb Clauses
Reading: Triumph of the City

12.1 Adverb Clauses of Time

12.2 Adverb Clauses of Contract

12.3 Adverb Clauses of Reason and Purpose

Lesson 2: Reduced Adverb Clauses
Reading: Amsterdam: A Cyclist's Dream

12.4 Reduced Adverb Clauses of Time

12.5 Reduced Adverb Clauses of Reason

Review the Grammar

Connect the Grammar to Writing: Write about a City Project

Unit 13 - CHOICES (Modals: Conditionals)

Lesson 1: Present and Future Real Conditionals
Reading: Making Decisions: Are You in Control?

13.1 Present Real Conditionals

13.2 Future Real Conditionals

Lesson 2: Present and Future Unreal Conditionals; Wish
Reading: Back to Life

13.3 Present and Future Unreal Conditionals

13.4 Wish + Simple Past/Would

Lesson 3: Past Unreal Conditionals — Wish
Reading: 21,000 Miles, 3 Miles per Hour

13.5 Past Unreal Conditionals

13.6 Wish + Past Perfect

Review the Grammar

Connect the Grammar to Writing: Write a Personal Essay

Unit 14 - FOOD (Noun Clauses and Reported Speech)

Lesson 1: Noun Clauses
Reading: The Power of a Hot Meal

14.1 Noun Clauses with That

14.2 Noun Clauses with If and Whether

14.3 Noun Clauses with Wh- Words

Lesson 2: Reported Speech: Part 1
Reading: Flavor and the Senses: Can we taste with our ears and eyes?

14.4 Reported Speech: Statements

14.5 Reported Speech: Modals

14.6 Reported Speech: Questions

Lesson 3: Reported Speech: Part 2

Reading: Baking in Ravello

14.7 Reported Speech: Commands, Advice and Requests

14.8 Reported Speech: Time and Place Changes

Review the Grammar

Connect the Grammar to Writing: Write about Results of a Survey

Unit 15 - LEARNING (Combining Ideas)

Lesson 1: Transition Words
Reading: Where Are the Aliens

15.1 Contrast: However, Nevertheless, On the Other Hand

15.2 Result: As a Result, Therefore, Thus

15.3 Addition: In Addition, Moreover

Lesson 2: Prepositional Phrases: Cause and Effect, Contrast
Reading: Let Learning Happen

15.4 Cause and Effect: As a Result of, Because of, Due to

15.5 Cause and Effect: So/Such...That, So Many/Much...That

15.6 Contrast: Despite, In Spite of

Review the Grammar

Connect the Grammar to Writing: Write a Persuasive Essay

Appendices

Glossary of Grammar Terms

Index