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Jack112 Posted 21 years ago
Grammar

Subject and Verb

1. The Fan C signal used with the operating system allows a variable voltage to be applied to both the power supply and case fans based on temperature sensor readings. (Original sentence.)

If I were to add the omitted words to it, what would they be?

2. The Fan C signal (that is) used with the operating system allows a variable voltage to be applied to both the power supply and case fans (that are) based on temperature sensor readings. ('that is' is referring to 'Fan C' right? What about 'that are'? What is that referring to? Or is it supposed to be 'that is' ? How do you know?)

3. Surge suppressors provide a row of power outlets and on/off switch that protects eletronic devices from over voltages. (What is 'that' referring to? The closest noun? For sentences like this, how do I figure it out?)

4. When the reflected signal strikes the first discontinuity, some of the signal rebounds in the original direction, which creates multiple echo effects. (What is 'which' referring to here? If I remember correctly, I think 'which' refers to the cloest noun which is 'original direction'?)

5. Attenuation, which is signal deterioration, and noise, which is signal interference, can cause problems in networks. (What is the second 'which' referring to? Thanks.)

Thanks.
  

Top answer

Dear Jack112, In number 2, it is my opinion that the voltage is based on «temperature sensor readings». » It is not however a subject with which I am familiar. Perhaps we had better wait for an engineer.

  • Dear Jack112, In number 2, it is my opinion that the voltage is based on «temperature sensor readings».
  • » It is not however a subject with which I am familiar.
  • Perhaps we had better wait for an engineer.
  • In number 3, the «that» refers to the «on/off switch».
  • You know because «protects» is singular.
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6 Answers
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Dear Jack112,

In number 2, it is my opinion that the voltage is based on «temperature sensor readings». It is therefore: «The Fan C signal (that is)used with the operating system allows a variable voltage (based on temperature sensor readings) to be applied to both the power supply and case fans.» It is not however a subject with which I am familiar. Perhaps we had better wait for
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In number 3, the «that» refers to the «on/off switch». You know because «protects» is singular.
If I were to write a sentence like that, how would I know which one to use? Is there a rule for 'that'? Or I can sometimes choose the noun that I want to refer to?
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1. The fact that the Internet has grown so large, with more than 90,000 core routes and 300,000,000 end users, proves the effectiveness of the Internet architecture. (Is the subject here 'fact' and the verb is 'proves' ?)

2. As mentioned earlier, the most common grouping of bits is eight, which make up one byte. (What is 'which' referring to here?)

Thanks.
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Could someone help me out with the post above? Thanks

1. Datagram: package of information containing the origin and destination addresses which is transferred on a network. (What is 'which' referring to here? Is it 'information' or 'package'? How do you know?)

Thanks.
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Hello Jack

1. Yes, "the fact" is the subject and "proves" is the verb. But because the "that" clause defines the "fact", you might also say that the whole passage from "The fact" to "end users" is the subject.

2. The "which" refers to "eight bits".

MrP
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1. Datagram: package of information containing the origin and destination addresses which is transferred on a network. (What is 'which' referring to here? Is it 'information' or 'package'? How do you know?)

"Which" here refers to "package of information..."

"Which" could refer to information; but it's unusual for a relative pronoun to refer back to a subsidiary constituen

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