Day 21 - Thursday


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.