Day 21 - Thursday
I. Housekeeping
- sign-in
- hand out fourth paper assignment (copy machine
difficulties)
II. Review Vendler article
III. Appropriate Passives
Sometimes passives are necessary.
- You may not know the agent.
- You may not care who the agent is.
- You may want to avoid assigning
responsibility.
- You may have complex new agent to
introduce.
- You may have a special science/technical
case.
[see handout]
IV. Activity: Appropriate Passives
Half the class writes an appropriate passive; half
the class an inappropriate passive. They're placed into jar. Students
choose and identify appropriateness.
V. Workshopping homework paragraphs at stylistic
level
Homework: From fourth
paper, introduction and at least one reason.
Appropriate Passives
1. You may not know who the agent of action
is.
Mr. Smith was murdered at approximately
6:00pm.
2. You may not need to say who the agent of action
is.
Tom Hanks was presented with another Oscar.
3. You may want to avoid assigning
responsibility.
The gun was left in the safe.
4. You may have a complex new agent to introduce.
Compare the following:
And there is another reason historians of science
have concentrated on Darwin rather than Mendel. Hundreds of letters,
both personal and scientific, to scores of different recipients,
including leading scientific figures, illuminate Darwin's genius.
Only ten letters to the botanist Karl Nageli, and a handful to his
mother, sister, brother-in-law, and nephew, represent Mendel.
And there is another reason historians of science
have concentrated on Darwin rather than Mendel. Darwin's genius is
illuminated by hundreds of letters, both personal and scientific, to
scores of different recipients, including leading scientific figures.
Mendel is represented by only ten letters to the botanist Karl
Nageli, and a handful to his mother, sister, brother-in-law, and
nephew.
5. You may have a special technical
case.
a. You may be telling the story of an object you
are studying or an apparatus you have designed.
The passive screen offered less resistance to the
intake flow than the traveling screen, partly because it had no
perforated plate, and partly because the screen frame members were
smaller. The screen and screen frame produced a head loss of only
0.07m (.023 ft.), which corresponds to K1 = 0.06. However, the
passive screen was designed to allow for a larger flow area, A2 =
2.7m2 (29 sq. ft.), which compensated for the lower head loss. As a
result, the gate-well flow had a loss coefficient of K2 = 1.5 or
about the same as for the traveling-screen system. As seen in Fig. 6,
the gate-well flow was increased by lowering the barrier plate into
the intake bay (which increased the pressure difference and
K1).
b. You may be writing about a concept or object
that in your discipline has the special status of an
agent.
At Service Load, the limit-state criteria ensure that
the fatigue life of a member is controlled within acceptable limits.
For fatigue and live-load requirements, the Guide Specification
invokes the same limit state criteria as the LFD. The Guide keeps
stress ranges within allowable fatigue limits and treats live-load
deflections in accordance with current practice. Furthermore, it
requires that concrete cracking be controlled by invoking the current
AASHTO rules for distributing flexural reinforcement.
6. You may want to avoid a string of sentences
beginning with "I" or "we."
The gamma-ray spectra of the specimens were measured
to determine the amounts of radioactive nuclei deposited on the
surface. Their surface characteristics were determined by scanning
electron microscope (SEM) and electron probe microanalysis (EPMA).
The specimens were mounted in epoxy resin and metallographically
polished to characterize the oxide layer structure. The elemental
composition and profile across the oxide layer were determined by
secondary ion mass spectroscopy.
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