Unit Five
Joining Sentences to Show Comparison and Contrast
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In your college courses, and in your personal lives
and professional careers as well, you will frequently compare and contrast
people, things, or ideas. Employers often must compare and contrast two or more
job applicants, college students may compare and contrast two historical
periods, and people often compare and contrast two products they are
considering buying, or two people they know. By joining ideas or information
with coordinators and subordinators, you can clearly show similarities and
differences to your reader with longer mature sentences rather than choppy
short ones.
For example, because two
college freshmen, George and Paul, are twin brothers, we expect them to be
similar, but they are actually different in some ways. Here are random lists of
information we have gathered about them:
George Paul
is tall and slim has
brown eyes and brown hair
likes to read science fiction is
tall and slim
runs three miles daily still
hasn't found a major
has brown eyes and brown hair likes
to read poetry
works as a cartographer's assistant 15 hours
per week hates
to exercise
is an engineering major works
20 hours per week as an usher in a
theater
The above information about
the twins is not listed in any organized way. So after we gather information
about two subjects (in this case, the twins), the next step toward comparing
and contrasting them is to organize the lists according to related points; here
are the twins' physical descriptions, interests, jobs, and college majors:
George Paul
has brown hair and brown eyes has
brown hair and brown eyes
is tall and slim is
tall and slim
likes to read science fiction likes
to read poetry
runs three miles daily hates
to exercise
works as a cartographer's assistant 15 hours works 20
hours per week as an usher in a
per
week theater
is an engineering major still
hasn't found a major
We can now express the
similarities and differences between the twins in sentences using the
coordinators and subordinators that you reviewed in Units 3 and 4.
Exercise
One George and Paul
The sentences below express
the similarities and differences between the twins George and Paul. In each
sentence, circle the joining word(s) that show comparison or contrast and then
list the words you've circled below.
1. Both George and Paul have brown eyes and
brown hair.
2. George and Paul both are tall and slim.
3. George likes to read science fiction, but
Paul likes to read poetry.
4. George runs three miles daily, yet Paul
hates to exercise.
5. While George works as a
cartographer's assistant 15 hours per week, Paul works 20 hours per week as an
usher in a theater.
6. Although George is an engineering major,
Paul still hasn't found a major.
Comparison Words Contrast
Words
In addition to showing the
similarities and differences between people, we often compare and contrast
behavior, cultures, theories, points of view on an issue, the positive and
negative features of something, or the past with the present. The exercises in
this unit give you practice in using coordinators and subordinators to compare
and contrast activities, cultures, and a past and present condition. The
following chart summarizes the words that show the logical relationships of
comparison and contrast.
Summary of Comparison and
Contrast Words
Comparison Contrast
COORDINATORS and but,
yet
SUBORDINATORS although
even
though
though
while
whereas
TRANSITION WORDS however
on
the other hand
Coordinators can join
sentences and begin sentences. When they join sentences, place a comma before
the coordinator.
Kim likes heavy metal, but
Tom prefers classical music.
Kim likes heavy metal. But
Tom prefers classical music.
Subordinators join dependent
clauses to sentences. When the dependent clause comes first, place a comma
after it; if the dependent clause follows the independent clause, don't use a
comma.
While Kim likes prime rib,
Tom prefers rice and vegetables.
Kim likes prime rib while
Tom prefers rice and vegetables.
Transition words do not join
sentences; you have to use a semicolon (;) to join the sentences or begin a new
sentence with the transition word.
Kim and Tom have different tastes in
music and food; however, they both like to dance.
Kim and Tom have different tastes
in music and food. However, they both like to dance.
Exercise
Two Getting in Shape
Carl wants to begin a regular
exercise program, but he can't decide between running and walking. To make a
rational choice, he lists what he knows about each activity:
Running Walking
improves cardiovascular
endurance can
be done in an urban or rural area
hums 800 to 1000 calories per
hour is
relatively injury-free
can be done in an urban or
rural area requires
no special equipment
can cause shinsplints and
muscle strain improves
circulation and posture
requires no special equipment bums
300 calories per hour
Step 1: Organize the two lists
according to related points:
Running Walking
1. can
be done in a rural or urban area can
be done in a rural or urban area
2.
3.
4.
5.
Step 2: Using
the coordinators and, but, and yet, and the subordinators while, whereas, although, ( or even though), write five sentences in which
you compare and contrast running and walking, using the information you
organized in step 1.
1.
2.
3.
4.
5.
Exercise
Three The Nuer and the Bakhteri
In this exercise, you will
compare and contrast two cultures—the Nuer and the Bakhteri. Here are random
lists of information about the two cultures:
The Nuer The
Bakhteri
are pastoral people men
herd the sheep and goats
divide labor according to sex live
in Southern Iran
occupy a flat, grassy region are
pastoral people
use products from cattle for
shelter and food raise
sheep and goats
live in the Sudan divide
labor according to sex
raise dairy cattle occupy
a mountainous area
women
herd the cattle use
products from sheep and goats for shelter
and food
Step 1: Complete the following lists by organizing the
information according to related points.
The Nuer The
Bakhteri
1. are
pastoral people are
pastoral people
2. live
in the Sudan live
in Southern Iran
3.
4.
5.
6.
7.
Step 2: Write sentences in which you
join related similarities and differences using the coordinators and
subordinators that show comparison and contrast. Follow the examples below.
1. Both
the Nuer and the Bakhteri are pastoral people.
2. The
Nuer live in the Sudan while the Bakhteri live in Southern Iran.
You should create five more sentences from your lists
in step 1. Be sure to use a variety of coordinators and subordinators that
show contrast.
3.
4.
5.
6.
7.
Exercise
Four The Netsilik and the Trobriands
Following the two steps you took in Exercises 2 and 3, compare and contrast two cultures-the Netsilik and the Trobriands. Organize the lists; then write six sentences using joining words that show comparison and contrast.
The Netsilik The
Trobriands
hunt seals and caribou live
in villages all year
occupy a cold desert
environment value
the extended family
live on the Arctic Coast are
horticulturists whose primary crop is yams
migrate seasonally occupy
warm coral islands
build houses of snow and ice live
on the Trobriand islands off the coast of New
Guinea
value the extended family build
wooden houses clustered in small villages
Step 1: Organize the lists.
1.
2.
3.
4.
5.
6.
Step 2: Combine related points
into sentences using coordinators and subordinators.
1.
2.
3.
4.
5.
6.
Comparing the Present and the Past
While attending her 10 year
high school reunion, Jonita saw her old boyfriend Peter, whom she hadn't seen
since graduation. She was surprised by the changes in him, and wrote a letter
to her best friend describing the changes:
Peter has
changed a great deal in the last ten years. Although Peter had curly red
hair ten years ago, he now has almost no hair at all. While he once played
basketball, now he just watches sports on TV. He hated to read in
school, but now he reads all the time. In high school, he wanted
to be an engineer, but today he teaches history at a junior college.
Most importantly, in high school, he vowed to stay single forever, yet
now he is a married man with two children.
When we compare and contrast
the past with the present, we have to be careful of verb tenses so that the
time is clear for our readers. Notice that Jonita uses the past tense forms of
verbs to describe Peter's condition 10 years ago and present tense forms of
verbs to describe the way he is now. Watch for time words that indicate
which tense should be used:
Time Past
Tense Time Present
Tense
10 years ago had curly red hair now has almost no hair
once played now watches
in school hated now reads
in high school wanted today teaches
once vowed now is
Exercise Five The Middleton Boom
In the following paragraph,
fill in each blank with the correct tense of the given verb. Notice that the
topic sentence makes it clear that the paragraph will show the differences
between Middleton in the past and Middleton now. (It helps to skim the entire
passage before filling in the blanks.)
The town of Middleton has changed a great deal in
thirty years. Thirty years ago, its population
3,000,
while now it 43,000
. Many of the current residents now
in the
be be
work
insurance business, a business that not exist until 1970, when Pay Up Insurance
Company
do
its headquarters there. Immediately the
insurance business unemployed
establish attract
workers from all over the
state who in turn the need for new services. Before 1970,
create
Middleton no libraries, yet now it three, each adjacent to new high
schools,
have
have
which built within a three-year period from
1979 to 1982. Students graduating from middle
be
school formerly to high school in a neighboring town,
but now they school
in
go
attend
their home town.