Title: Punctuations
1 Punctuations
2- Contents
- Punctuations
- Describing graphs and tables
- Enumeration
- Writing numbers
3Punctuation
- Periods .
- Commas ,
- Colons
- Semicolons
- Question marks ?
- Exclamation points !
- Apostrophes '
- Quotation marks " "
- Hyphens -
- Dashes --
- Parentheses ( )
- Brackets
4Semicolon
- The semicolon ( ) is an important punctuation
mark in - English and has several uses it is particularly
common in - formal and/or academic writing. There are several
common - ways of using the semicolon.
- 1. Use a semicolon to connect sentences that
have closely related ideas. - 2. Use a semicolon to connect items in lists if
the itemsin the lists contain commas. - 3. When sentences are connected by using
conjunctive adverbs, the semicolon comes at the
end of the first sentence.
51. Use a semicolon to connect sentences that have
closely related ideas.
- Examples
- He came he saw he conquered.
- She always does her best that's one reason
everyone admires her. - Dave Johnson and his family recently visited a
village near Chiangmai, Thailand Dave's wife,
May, comes from there. - Almost everyone has heard of the Time Square of
New York City it's one of the most famous
tourist attractions in the U.S.A. - John and his wife are newlyweds they got married
only a few days ago.
6Special notes
- 1. Periods could also be used for these
sentences, but the semicolons - emphasize how closely related the sentences
are. (If periods are used, - the sentences seem "choppy.")
-
- 2. Commas cannot be used to join sentences like
the above. -
- 3. Note that when a semicolon is used to join
closely related sentences, - a lower case (small) letter follows the
semicolon, not a capital letter. - 4. Most authorities state that when a semicolon
is used with - parentheses (( )) or with quotation marks ("
"), the semicolon should be - outside the parentheses or quotation marks
- Bill said, "I was born in a very small town" he
went on to say that it's a friendly place with a
population of less than 1,000. - Ms. Jones was probably referring to the state of
Washington (which is in the north-western U.S.)
a reference to Washington, D.C. doesn't seem very
logical to me.
72. Use a semicolon to connect items in lists if
the items in the lists contain commas.
- Examples
- She's lived in San Antonio, Dallas, and Irving,
Texas Palms, West Los Angeles, and Brentwood,
California Arch Cape and Portland, Oregon and
Phoenix, Arizona. - We invited Bob's girlfriend, Annie Judy, Ahmed,
and Simon Simon's cousins, Hugo and Peter our
next-door neighbor, Tina, and her husband and
three or four other people. - For the class you'll need two diskettes, either
formatted or unformatted paper, both for the
printer and for your class notes and, of course,
the textbook.
8Special notes
- 1. Semicolons are very helpful, in sentences such
as the ones above, in making the lists less
confusing. Without the semicolons, the items in
the list would be difficult to understand using
commas alone would not separate the items
clearly -
- Example
- We invited Bob's girlfriend, Annie, Judy,
Ahmed, and Simon, Simon's cousins, Hugo and
Peter, our next-door neighbor, Tina, and her
husband, and three or four other people. (This
sentence is confusing because the items in the
list are not clearly separated.) - 2. Periods cannot be used instead of semicolons
in - sentences like those above.
93. When sentences are connected by using
conjunctive adverbs, the semicolon comes at the
end of the first sentence.
- Conjunctive adverbs include connecting words such
as however, - therefore, besides, consequently, nevertheless,
in addition, - accordingly, and otherwise conjunctive adverbs
(which are sometimes - also called sentence connectors) are especially
common in serious - business, technical, and academic writing.
- Examples
- Sandy might have been sick and unable to come to
work however, I suspect that she took the day
off and went shopping. - We're expected to do all the assigned work in
addition, we're required to read and report on
three books that we can choose ourselves. - The last three shipments were damaged when they
were received consequently, all new shipments
will be inspected just before theyleave the
factory. - Mike found the work very difficult and was often
tempted to quit nevertheless, he kept on trying
and eventually did quite well on it.
10Special notes
- Periods can be used with conjunctive adverbs
- instead of semicolons.
- She was extremely tired. However, she finished
her assignment. - She was extremely tired however, she finished
her assignment.
11Commas
- Use commas to keep your writing clear. Omitted or
incorrectly used, commas can cause confusion or
even change meaning. Commas should be used with
the following elements - Introductory elements
- Coordinating conjunctions joining independent
clauses - Elements in a series
- Coordinate modifiers
- Nonrestrictive modifiers
- Parenthetic elements
- Elliptical constructions
- (http//www.mhhe.com/mayfieldpub/tsw/commas.htm)
121. Introductory elements
Use commas to set off transitional words and
phrases, introductory clauses, or introductory
phrases to signal where the introductory element
finishes and the main part starts.
- (1) Transitional Words and Phrases
- Place a comma after a transitional word or
phrase that begins a sentence. - Moreover, the opening of an export market
would help expand the market for key escrow
encryption. - In addition, several companies and
individuals have proposed commercial key escrow
approaches. - (2) Introductory Clauses
- Place a comma after an introductory
dependent clause. - Although key escrow is voluntary, critics
say that the introduction of clipper points
national policy in a disturbing direction.
13- (3) Introductory Prepositional or Verbal Phrases
- Normally, use a comma after an introductory
prepositional or verbal - phrase. However, you may omit the comma
after a short - introductory phrase if no ambiguity is
possible. -
- For the first time, researchers have used
DNA analysis to identify - the animal tissue in 4,000-year-old rock
paintings. - Despite the error the experiment was
successful. - Combining surface area with depth, we
calculated the volume of - the pond.
- Do not place a comma after an introductory
participial or gerund phrase if the phrase forms
part of the subject or verb of the sentence. -
- Combining surface area with depth was our
principal method for calculating the volume of
the pond.
142. Coordinating Conjunctions Joining
Independent Clauses
Place a comma before a coordinating conjunction
that joins two independent clauses. However, if
the clauses are very short and closely related,
you may omit the comma.
- Unacceptable
- In almost all illicit markets, only the tip
of the iceberg is visible and there is no reason
why the nuclear-materials black market should be
an exception. - Acceptable
- In almost all illicit markets, only the tip
of the iceberg is visible, and there is no reason
why the nuclear-materials black market should be
an exception.
153. Elements in a series
- Use a comma to separate items in a series.
Although - placing a final comma before the coordinating
conjunction is often considered optional,
omitting it can sometimes cause confusion. - In a 3-or-more-element list, it's better to put
comma between each of the items (including the
last two), for clarity. - Most scientific and technical writing routinely
uses a final comma in a series to prevent
possible ambiguities.
- As a simple example of why, consider this
3-element grocery list written without the
clarifying last comma - milk, macaroni and cheese and crackers.
- It's not clear whether that means
- milk, macaroni and cheese, crackers or
- milk, macaroni, cheese and crackers .
-
16- Other examples
- His intellectual acuity, diverse interests, frail
physique, and - ethereal personality made Oppenheimer a man of
legendary - proportions.
- In this sentence, omitting the final comma
would not cause confusion. Still, it is good
practice in scientific and technical writing to
always include the final comma in a series. - Weak
- Contemporary physics is still exploring
neutron stars, black holes and the penetration of
electrons through potential barriers. - The omission of the final comma before and
causes ambiguity are black holes and the
penetration of electrons through potential
barriers specific topics connected to the general
subject of neutron stars, or are they separate
items? -
Improved Contemporary physics is still
exploring neutron stars, black holes, and
the penetration of electrons through potential
barriers.
174. Coordinate Modifiers
Use a comma between coordinate modifiers.
Modifiers are coordinate if they modify the same
word. (You can test to see if the modifiers are
coordinate by inserting and between them. If the
description still makes sense, then the modifiers
are coordinate.)
- Example
- Ebola viruses are known as filose viruses for
their long, filament like appearance under a
microscope. -
- Long and filament like modify the appearance
of the virus equally, so a comma is needed
between them.
185. Nonrestrictive Modifiers
Use commas to set off nonrestrictive modifiers.
A nonrestrictive modifier is usually introduced
by which and contains information that is not
essential to establishing the meaning of what it
modifies.
- Example
- Infectious diseases, which antibiotics and
vaccines once promised to banish from our shores,
have returned with a vengeance.
196. Parenthetic Elements
Use commas to set off parenthetic elements.
- Example
- Oppenheimer became known, of course, for
leading the physicists who built the atomic bomb
at Los Alamos Laboratory.
207. Elliptical Constructions
Use a comma to indicate the omission of a word or
words readily understood from the context.
- Example
- In the United States there are ninety-two
scanners in Europe, eighty-five in all of
Africa, six. - The commas indicate the omission of the words
there are.
21Specialized Uses of Commas
- (1) In numbers with five or more digits,
Anglo-American usage dictates that there be
commas before groups of three digits. - Customers reported a total of 212,413
hardware malfunctions. - (2) Use commas to separate adjacent numbers.
- In 1994, 212 cases had been diagnosed.
- (3) Use commas to separate items in an address.
- Einstein then moved to Princeton, New
Jersey. - The branch office address is 958 Ridge
Road, Hayes, KS, which is in the northern part of
the state. - Portland, Oregon, is the site of the new
factory.
22- (4) Use commas to set off the year in dates
expressed in the month-day-year sequence. - Greenberg began the project on July 2,1992.
- The first meeting will be held on Tuesday,
May 5, at the high school. - It rained on Monday, August 20, 1991, before
the crop was harvested. - (5) Omit commas when only the month and the year
are stated. - Greenberg began the project in July 1992.
- The tropical storms of July 1998 were very
severe. - (6) In dates written in the day-month-year
sequence, the comma is omitted. - Greenberg began the project on 2 July1992.
23Colons
- Use colons for the following purposes
- 1. to introduce and emphasize lists, quotations
and explanations and certain appositional
elements. - 2. to express ratios.
- 3. to separate numbers signifying different
nouns, such as in separating units of time or
elements in a bibliographic citation. - 4. to separate titles from subtitles
24To introduce and emphasize (1) To set off and
emphasize lists
Begin each element of lists, series, or phrases
with lowercase letters.
- Examples
- Anyone communicating via computer needs a
security system that ensures three essential
requirements confidentiality, authentication,
and trust. - The market for photovoltaic power systems
includes the following items intrusion alarms,
flood monitors, calculators, and telephone call
boxes. - Or
- The market for photovoltaic power systems
includes the following items - - intrusion alarms
- - flood monitors
- - calculators
- - telephone call boxes
-
-
25(2). To set off and emphasize quotations
- The contract reads "DL-400 coaxial cable shall
be used for all platform instrument installations
at Site 5, unless a specific exception is
justified in the approved work order." -
- Kurt noted "Even potatoes are probably much
better guarded today than radioactive materials."
Place colons outside quotation marks.
26(3). To set off and emphasize explanations
and appositional elements
- In designing the tachometer, the team first posed
a question What operations are needed on the
input signal in order to generate the desired
output? - This system currently operates in a strictly
one-sided fashion the machine makes sure the
person who inserted the card is its legitimate
owner by asking for a secret password, but the
cardholder must blindly trust that the machine
has not been tampered with. - While thinking about this problem, we were
reminded of an access-control system with similar
demands that is used successfully worldwide on a
daily basis passports.
272. To express ratios
- The ratio of drag torque to bearing friction
torque cannot exceed31. - The anti-GAP 43, anti-MAP 2, and
anti-synaptophysin antibodies were diluted11000,
1300, and 1100, respectively, in
phosphate-buffered saline containing10 bovine
serum albumin.
283. To separate units of time
- The main thruster engines ignited at 705 a.m.
EDT. -
- To separate elements in a citation (in certain
documentation styles) - E. F. Lyon, "Airport Surface Traffic
Automation," Lincoln Laboratory Journal 4151
(1991).
29Dashes
- Use dashes--sparingly--to indicate abrupt shifts
in thought and to set off or emphasize
appositional or parenthetical elements or
interjections. - In most cases, use commas or parentheses instead.
- In typewritten documents, use two hyphens (--)
with no - spaces between or around them to form a dash.
- Example
- Although we have made these comments with
specific reference to water--only because of our
familiarity with water--all pure substances
exhibit the same behavior.
30Hyphens
- Use hyphens to link
- 1. certain prefixes, letters, and numbers with
nouns - 2. compound nouns
- 3. compound modifiers
- 4. spelled-out numbers
- Also use hyphens for the following purposes
- to clarify the meaning of certain words
- to divide words
- to express to or through between two letters or
numbers - for specialized scientific notation
Ex, com-pu-ter, light-year, hyper-tension
Ex. pages 25-63, 1901-1911
Ex, carbon-14 (chemical elements)
311. To Link Certain Prefixes, Letters, and Numbers
with Nouns
- Use hyphens to connect certain prefixes to nouns.
- all- ex- half- quasi- self-
hex- - However, scientific and technical writing styles
omit the hyphen between most prefixes, especially
prefixes that are not words themselves.
http//www.mhhe.com/mayfieldpub/tsw/hyphen.htm
32Use hyphens to connect numbers or letters used as
prefixes to a noun.
- The following list of prefixes that normally are
not - followed by a hyphen
- aero after ante anti astro auto
bi bio chemo co - counter de electro exo extra geo
hemo hyper - hypo in infra inter iso macro meta
micro mid mini - multi non over phto physio poly
post pre pro - pesudo re semi sub super supra
trans un
- Example
- the T-cell 10-cylinder
332. To Link Compound Nouns
- Use a hyphen to link compound nouns, especially
when the - lack of a hyphen would change the meaning of the
term. - Examples
- light-year
- light year
- The first term is a unit of measurement, not of
time the - second pair of words, on the other hand, may
indicate a - year that is not heavy.
343. To Link Compound Modifiers
- Use a hyphen to connect compound modifiers to
promote - clarity and prevent ambiguity.
- Examples
- laser-alignment process compound modifier
noun - laser alignment modifier noun
- the two-tube combiner or the two tube
combiners - wire-grid aperture cap aperture cap for a wire
grid - wire grid-aperture cap a wire cap for a grid
aperture - wire-grid level adjustment
- wire grid-level adjustment
- heavy-water cavity a cavity for heavy water
- heavy water cavity a water cavity that is
heavy
354. To Link Spelled-Out Numbers
- Use a hyphen to join spelled-out numbers from 21
- through 99 and spelled-out fractions.
- Examples
- twenty-one moving parts
- the thirty-third experiment
- four-fifth of the subjects
36Basic sentence punctuation patterns
37punctuation patterns
My boss warned me about being late, but he didnt
fire me.
- IC, cc IC.
- IC IC.
- IC trans, IC.
- DC, IC.
- IC DC.
My boss warned me about being late he didnt
fire me.
My boss warned me about being late however, he
didnt fire me.
Although my boss warned me about being late, he
didnt fire me.
My boss didnt fire me although he warned me
about being.
IC independent clause (SV and can stand
alone) DC Dependent clause (is introduced by a
signal word) Cc coordinate conjunction (and,
but, for, nor, or, so, yet) Trans transitional
expression
38Describing Graphs and Tables
- A graph is a visual, concise means of presenting
- information a table presents facts and figures
in compact - form.
- http//pioneer.netserv.chula.ac.th/pkanchan/html/
graph.htm - http//www.writefix.com/graphs/index.htm
- http//www.eslflow.com/describinggraphstables.html
- http//adw.hct.ac.ae/site_ilc/sites_ielts/graphsit
e/index.htm
39There are three basic kinds of graphs a circle
or pie graph, a bar graph, and a line graph.
- Circle/Pie Graph
- In studying circle graphs, you should determine
- what the entire circle represents,
- what the various parts of the circle represent
and - how the percentages compare.
- Bar Graph
- When studying bar graphs, you should ask
- what the subject of the graph is,
- how the various parts relate to this subject and
- what the relative percentages that each bar
represents are.
40- Line Graph
- Line graph are made up of three important
parts--the vertical axis, the horizontal axis,
and the diagonal line, which shows the
relationship between the figures on the vertical
axis and those on the horizontal. - In studying line graphs, you should
- determine the topic of the graph and look at
the axes and diagonal line to understand the
relationship that is being illustrated. - Tables
- When reading tables, you should
- determine the subject and establish what each
category and subcategory represents.
41Making Inferences from Graphs and Tables
- Graphs and tables are visual representations
which can give - information both directly and indirectly. In
other words, readers - sometimes may have to make inferences or draw
conclusions - based on the data given as well as their
knowledge of the world. - Following are some expressions we may use when
making inferences - From the information given, I conclude that
-
infer that -
assume that - From the information given, it can be decided
that -
concluded that -
inferred that -
assumed that - The information (in the text/ in Figure) implies
that -
suggests that -
hints that
42Verb forms used with inferences
- Present Tense - may/might/could/ must
- Example
- I can smell gas. The pipe must be broken.
- Past Tense - may/might/could/must have pp.
- Example
- The multiple explosion at the LPG filling station
near Seattle - must have been caused by a gas leak. The station
- attendants may have been careless with the gas.
43Describing Graphs and Tables
- The information contained in a graph or a table
can also be - expressed in words. The following are some useful
- expressions describing graphs and tables.
- make up
- account for
- be responsible for
- contribute to
- constitute
- Example
- According to Figure 1, food garbage makes up 17
of - the total solid waste collected in the United
States in 1975.
44When comparison is involved, these expressions
may be used
- Example
- There has been a steady decline in oil price.
45Example It can be seen from Figure 3 that the
concentration of sulfur dioxide increases sharply
from September and falls dramatically from
December.
46(No Transcript)
47Useful language for interpreting graphs
- The graph illustrates / shows the rise in . . .
- The graph illustrates / shows that . . .
- It is estimated that . . .
- Which factor comes top / bottom / second from the
bottom? - Compare the data in the bar graph / chart.
- Give the percentages of several factors. Which
factor is the highest / the lowest? - There was / has been a downward trend in customer
numbers. - The trend was flat.
- The present trend is maintained.
- Production started the year in a stable position,
but then plunged / plummeted / slumped in the
third quarter. - It has now flattened out / leveled out.
48- Production showed a marginal rise in the first
three quarters, but then suffered a sharp drop. - Production has experienced a strong, steady
growth over the whole year. - Production grew rapidly in the first quarter, and
reached a plateau of development (???? ). - Since then it has remained more or less stable.
- Since then, it has quickly dropped.
- Production started climbing steadily / began to
rise rapidly but leveled off / flattened off at a
level of around . . . Since then it has fallen
steadily. - Sales rocketed. Prices are soaring / rocketing /
skyrocketing. - Customer numbers (have) soared.
- There was / has been a steep rise in customer
numbers. - Customer numbers hit / reached a peak.
- There was a peak in customer numbers.
- There was a slight dip in customer numbers.
- There was a steady fall / decline in customer
numbers.
49- Production has fluctuated all year.
- Customer numbers were erratic.
- Customer numbers rose.
- There was a gradual rise in customer numbers.
- There has been a slight increase in production
over the year. - Numbers fell steadily.
- Production has dropped slowly but steadily over
the year. - The number of customers fell dramatically.
- Production fell sharply / considerably in / over
the last quarter, reaching a low of . . . Since
then it has staged a partial recovery. - There was a rapid / considerable / dramatic /
sharp drop in production in the first two
quarters. - Customer numbers dipped / plunged.
- There were considerable / wild fluctuations in
customer numbers.
50Example 1
- The graph shows Oil Production Capacity in
millions of barrels per day for selected Gulf
countries. There are several features in this
graph. - The most significant feature is that oil
production will increase sharply in almost all
the countries shown. Kuwait and Iraq are both
expected to double their output between 1990 and
2010, with Kuwait's production rising from 1.8
million barrels per day (bpd) in 1990 to 3.8 in
2010. Iran will also increase its output by a
slightly smaller amount. After remaining steady
at 2.5 million bpd from 1990 to 2000, the UAE's
output is expected to approach 4.0 million bpd in
2010. Only Qatar's production is predicted to
fall, back to 0.8 million bpd after a slight rise
in 2000. - However, the greatest increase will be from Saudi
Arabia. In 1990, its output capacity at 8.5
million bpd exceeded the combined production of
Iran, Iraq and Kuwait. This lead is expected to
continue with a 75 increase in production to
14.5 million bpd 2010. - In summary, while most of the countries are
expected to show increases, Saudi Arabia will
maintain and strengthen its position as the major
producer.
51Example 2
- The graph shows the fluctuation in the number of
people at a London underground station over the
course of a day. - The busiest time of the day is in the morning.
There is a sharp increase between 0600 and
0800, with 400 people using the station at 8
o'clock. After this the numbers drop quickly to
less than 200 at 10 o'clock. Between 11 am and 3
pm the number rises, with a plateau of just under
300 people using the station. - In the afternoon, numbers decline, with less than
100 using the station at 4 pm. There is then a
rapid rise to a peak of 380 at 6pm. After 7 pm,
numbers fall significantly, with only a slight
increase again at 8pm, tailing off after 9 pm. - Overall, the graph shows that the station is most
crowded in the early morning and early evening
periods.
52Enumeration
- A writer starts with a general class, then
proceeds to break it down by listing some or all
of its members or parts.
Member or part
Member or part
General class
Member or part
Member or part
53Listing signals
- (1) First, there are
- Second,
- Third,
- Last,
(2) The first kind / type / step is The
second (Another) The third (The next)
The last (The final)
54- (3) Descending order
- - To mention the most important one first.
most essential most important primary largest chie
f
kind is reason is
The
55Example My chief reason for choosing that
university was its wonderful study program in
agriculture. Second, Bingston hires only the
finest teachers to teach in its graduate program.
Then, there was Bingstons deferred payment plan
this represented a great convenience to my
parents. A final reason was the reasonable
tuition.
56 Less important More
important
- (4) Ascending order
- - The last item is the most important.
- - To emphasize the importance.
most essential most important primary largest chie
f
But the
kind is reason is
The
kind, however, is reason, however, is
Finally, and most importantly, there is
57Example There are several reasons why I decided
to attend Bingston University. First of all, the
tuition was reasonable. Second, the university
had a deferred payment plan this represented a
great convenience to my parents. Another reason
was the fact that Bingston hires only the finest
of teachers to teach in its graduate program. My
chief reason, however, was Bingstons mandatory
study program in argriculture.
58Writing Numbers
- Although usage varies, most people spell out
numbers that can be expressed in one or two words
and use figures for other numbers.
(http//owl.english.purdue.edu/owl/resource/593/01
/)
59- Words (less than 100)
- six million dollars
- after thirty-one years
- eighty-three people
- over two pounds
- Figures (more than 100)
- (100 ????????????????? two hundred )
- only 31.50
- 6,381 bushels
- 4.78 liters
- after 126 days
There are twenty-six students in my wife's
third-grade class. Michael is over 183
centimeters tall.
60some examples of specific situations.
- Days and Years
- December 12, 1965 or 12 December, 1965
- A.D. 1066
- in 1900
- in 1971-72 or in 1971-1972
- the eighties, the twentieth century
- the 1980's or the 1980s
- Time of Day
- 800 A.M. (or) a.m. (or) eight o'clock in the
morning - 430 P.M. (or) p.m. (or) half-past four in the
afternoon - The first election results are expected around 1
a.m.
61- Addresses
- 16 Tenth Street
- 350 West 114 Street
- Identification Numbers
- Room 8
- Channel 18
- Interstate 65
62- Page and Division of Books
- page 30
- chapter 6
- Decimals and Percentages
- a 2.7 average
- 13 1/4 percent
- .037 metric ton
- Large Round Numbers
- four billion dollars (or) 4 billion
- 16,500,000 (or) 16.5 million
- Tickets cost 35.50 apiece.
- The city spent 1.1 million for snow removal
last year. (or 1,100,000.)
63Notes on Usage
- Repeat numbers in legal or commercial writing.
- The bill will not exceed one hundred (100)
dollars. - Numbers in series and statistics should be
consistent. - two apples, six oranges, and three bananas
- NOT two apples, 6 oranges, and 3 bananas
- 115 feet by 90 feet (or) 115' x 90'
- scores of 25-6 (or) scores of 25 to 6
- The vote was 9 in favor and 5 opposed
64Write out numbers beginning sentences.
- (O) Six percent of the group failed.
- (X) 6 of the group failed.
- Use a combination of figures and words for
numbers - when such a combination will keep your writing
clear. - Unclear
- The club celebrated the birthdays of 6
90-year-olds who were born in the city. (may
cause the reader to read '690' as one number.) - Clearer
- The club celebrated the birthdays of six
90-year-olds who were born in the city.
65Web links
- http//penscanner.bellus.com.tw/howtothesis-2.html
(Technical writing) - http//pioneer.netserv.chula.ac.th/pkanchan/html/
eap2.htm (English for Academic Purposes -Science)
- http//www.cs.washington.edu/homes/mernst/advice/w
rite-technical-paper.html (Writing a technical
paper) - http//infolab.stanford.edu/widom/paper-writing.h
tml (tips for writing technical papers)