Unit Theme Grammar Topics Avoid Common Mistakes
PART 1 The Present
UNIT 1
page2
Are You Often
Online?
Simple
Present
Simple Present (p.4)
Time Clauses and Factual
Conditionals (p.9)
Avoiding amn’t;
remembering a comma
after a time clause at the
beginning of a sentence
UNIT 2
page14
Brainpower Present
Progressive
and Simple
Present
Present Progressive (p.16)
Simple Present and Present
Progressive Compared
(p.19)
Remembering a form of be
with the present progressive;
remembering -ing for the
present progressive
UNIT 3
page24
What’s
Appropriate?
Imperatives Imperatives (p.26)
Let’s . . . (p.30)
Avoiding No in imperatives;
remembering an apostrophe
in Don’t and Let’s
PART 2 The Past
UNIT 4
page34
Entrepreneurs Simple Past Simple Past (p.36)
Simple Past of Be and
There Was / There Were
(p.42)
Avoiding the past form after
did not and didn’t; avoiding
putting a time expression
between the subject and the
verb
UNIT 5
page46
Science and
Society
Simple Past,
Time Clauses,
Used To, and
Would
Time Clauses and the Order
of Past Events (p.48)
Past with Used To and
Would (p.51)
Remembering a subject in
time clauses; remembering
the -d in used to for
affirmative statements
UNIT 6
page58
Memorable
Events
Past
Progressive
Past Progressive (p.60)
Using When and While with
Past Progressive (p.64)
Avoiding a time clause
as a complete sentence;
remembering a comma when
the time clause comes first in
a sentence
Scope and Sequence iii
Scope and Sequence
Unit Theme Grammar Topics Avoid Common Mistakes
PART 3 Nouns, Determiners, and Pronouns
UNIT 7
page68
Privacy
Matters
Count and
Noncount
Nouns
Count Nouns and Noncount
Nouns (p.70)
Noncount Nouns:
Determiners and
Measurement Words (p.75)
Remembering a determiner
with a singular count
noun; avoiding a/an with a
noncount noun; avoiding
plural noncount nouns
UNIT 8
page80
The Media Articles Articles (p.82)
Generalizing: More About
Articles (p.86)
Remembering a/an the
first time you mention a
new idea; avoiding the with
generalizations
UNIT 9
page88
Challenging
Ourselves
Pronouns;
Direct and
Indirect
Objects
Pronouns (p.90)
Direct and Indirect Objects
(p.95)
Remembering to or for
with certain verbs; avoiding
double pronouns
PART 4 The Present Perfect
UNIT 10
page100
Discoveries Present
Perfect
Present Perfect (p.102)
Present Perfect or Simple
Past? (p.106)
Remembering when
to use the simple past;
remembering when to use
the present perfect
UNIT 11
page110
Unsolved
Mysteries
Adverbs
with Present
Perfect; For
and Since
Adverbs with Present
Perfect (p.112)
Present Perfect with For and
Since (p.116)
Avoiding never in negative
statements; avoiding ever in
affirmative statements
UNIT 12
page120
Cities Present
Perfect
Progressive
Present Perfect Progressive
(p.122)
Present Perfect Progressive
or Present Perfect? (p.126)
Remembering have with the
present perfect progressive;
avoiding the present
progressive with for and since
iv Scope and Sequence
Unit Theme Grammar Topics Avoid Common Mistakes
PART 5 Adjectives, Adverbs, and Prepositions
UNIT 13
page130
A Good
Workplace
Adjectives Adjectives (p.132)
More About Adjectives
(p.135)
Avoiding misspelling
adjectives ending in -ful;
remembering to put opinion
adjectives first
UNIT 14
page140
Learn Quickly! Adverbs of
Manner and
Degree
Adverbs of Manner (p.142)
Adverbs of Degree (p.145)
Remembering to use adverbs
to describe how something
happened; avoiding putting
an adverb between the verb
and the object; remembering
that some adverbs have the
same form as adjectives
UNIT 15
page150
Food on the
Table
Prepositions Prepositions of Place and
Time (p.152)
Prepositions of Direction
and Manner (p.156)
Phrasal Prepositions
and Prepositions After
Adjectives (p.160)
Using prepositions correctly
PART 6 The Future
UNIT 16
page166
Life Lists Future (1) Be Going To, Present
Progressive, and Simple
Present for Future Events
(p.168)
Remembering be with going
to; remembering be before
the subject in Wh- questions
with be going to
UNIT 17
page174
Getting Older Future (2) Future with Will (p.176)
Future with Will, Be Going
To, and Present Progressive
(p.180)
Remembering will before the
main verb with the future;
remembering the base form
of the verb after will
UNIT 18
page186
Learning to
Communicate
Future Time
Clauses
and Future
Conditionals
Future Time Clauses (p.188)
Future Conditionals;
Questions with Time
Clauses and Conditional
Clauses (p.192)
Avoiding will in the
conditional clause; avoiding
will in the time clause
Scope and Sequence v
vi Scope and Sequence
Unit Theme Grammar Topics Avoid Common Mistakes
PART 7 Modal Verbs and Modal-like Expressions
UNIT 19
page198
Amazing
Science
Ability Ability with Can and Could
(p.200)
Be Able To (p.204)
Remembering to spell cannot
as one word; remembering
the be and to in be able to
UNIT 20
page210
Good Causes Requests and
Offers
Permission (p.212)
Requests and Offers (p.216)
Avoiding could in short
answers to requests for
permission; avoiding could
or would in responses to
requests to do things
UNIT 21
page222
The Right Job Advice and
Suggestions
Advice (p.224)
Suggestions (p.228)
Remembering had in
had better; avoiding could
not in negative suggestions
UNIT 22
page232
How to Sell It Necessity,
Prohibition,
and
Preference
Necessity and Prohibition
(p.234)
Preference (p.238)
Avoiding an infinitive with
would rather; remembering
would before rather
UNIT 23
page242
Life Today,
Life Tomorrow
Present
and Future
Probability
Present Probability (p.244)
Modals of Future Probability
(p.247)
Avoiding can for present or
future probability; avoiding
couldn’t for uncertainty
PART 8 Verbs + Prepositions and Phrasal Verbs
UNIT 24
page252
Getting Along
at Work
Transitive and
Intransitive
Verbs;
Verbs and
Prepositions
Transitive and Intransitive
Verbs (p.254)
Verb + Object + Preposition
Combinations (p.256)
Verb + Preposition
Combinations (p.258)
Remembering the object
with a transitive verb; using
prepositions with verbs
UNIT 25
page262
Money,
Money,
Money
Phrasal Verbs Intransitive Phrasal Verbs
(p.264)
Transitive Phrasal Verbs
(p.267)
Remembering a particle
in phrasal verbs; avoiding
putting an object pronoun
after a particle
PART 9 Comparatives and Superlatives
UNIT 26
page272
We Are All
Different
Comparatives Comparative Adjectives and
Adverbs (p.274)
Comparisons with As . . . As
(p.279)
Avoiding using more and
-er together; remembering
the second as in as...as
comparisons
UNIT 27
page284
The Best and
the Worst
Superlative
Adjectives
and Adverbs
Superlative Adjectives and
Adverbs (p.286)
Remembering irregular
superlative forms; avoiding
an object pronoun before a
superlative
Scope and Sequence vii
Unit Theme Grammar Topics Avoid Common Mistakes
PART 10 Gerunds and Infinitives
UNIT 28
page292
Managing
Time
Gerunds and
Infinitives (1)
Verbs Followed by Gerunds
or Infinitives (p.294)
Verbs Followed by Gerunds
and Infinitives (p.297)
Using infinitives and gerunds
after verbs; remembering to
in infinitives
UNIT 29
page302
Civil Rights Gerunds and
Infinitives (2)
More About Gerunds
(p.304)
More About Infinitives
(p.307)
Avoiding plural verbs with
gerund subjects; avoiding
infinitives after prepositions;
remembering It and to in It
sentences
PART 11 Clauses and Conjunctions
UNIT 30
page312
Sleep Subject
Relative
Clauses
(Adjective
Clauses
with Subject
Relative
Pronouns)
Subject Relative Clauses
(p.314)
More About Subject
Relative Clauses (p.318)
Avoiding a subject pronoun
after a subject relative
pronoun; remembering the
relative pronoun in a subject
relative clause
UNIT 31
page322
Viruses Object
Relative
Clauses
(Adjective
Clauses
with Object
Relative
Pronouns)
Object Relative Clauses
(p.324)
More About Object Relative
Clauses (p.328)
Avoiding who in possessives;
avoiding whom in subject
relative clauses; avoiding an
object pronoun at the end of
an object relative clause
UNIT 32
page332
Special Days Conjunctions
and Adverb
Clauses
Conjunctions (p.334)
Adverb Clauses (p.338)
Remembering a comma after
the adverb clause when it is
first