subgroup modifiers

[klater]

Manhattan GMAT 5th edition Chapter 12 p240-241

Please tell me:

"This model explains all known subatomic particles, of which some were only recently discovered."
Why is this sentence wrong? Can "of which" phrase be correctly used?

This model explains all known subatomic particles, some of them were only recently discovered.
Is this sentence correct? Why?

Thanks to anyone who helps.

[RonPurewal]

Manhattan GMAT 5th edition Chapter 12 p240-241

Please tell me:

"This model explains all known subatomic particles, of which some were only recently discovered."
Why is this sentence wrong? Can "of which" phrase be correctly used?

I don't think that's wrong, strictly speaking, but any decently written sentence would have "some of which" instead.

This model explains all known subatomic particles, some of them were only recently discovered.
Is this sentence correct? Why?

Thanks to anyone who helps.

Nope. That's a run-on sentence (complete sentence + comma + another complete sentence).

[klater]

Manhattan GMAT 5th edition Chapter 12 p240-241

Please tell me:

"This model explains all known subatomic particles, of which some were only recently discovered."
Why is this sentence wrong? Can "of which" phrase be correctly used?

I don't think that's wrong, strictly speaking, but any decently written sentence would have "some of which" instead.

This model explains all known subatomic particles, some of them were only recently discovered.
Is this sentence correct? Why?

Thanks to anyone who helps.

Nope. That's a run-on sentence (complete sentence + comma + another complete sentence).

Thanks! So I need an and on the sencond sentence, right?

[RonPurewal]

Thanks! So I need an and on the sencond sentence, right?

Doing this would create a sentence that is grammatically sound but doesn't convey a sensible relationship.
If you just say "xxxxxx(,) and yyyyy", then xxxxxx and yyyyy should be two different, separate things, with no necessary relationship to each other.

E.g.,
There was lots of traffic on the highway, and I was late to work.
--> "Here are two bad things that happened to me today". No relationship.

[Willy]

Thanks! So I need an and on the sencond sentence, right?

Doing this would create a sentence that is grammatically sound but doesn't convey a sensible relationship.
If you just say "xxxxxx(,) and yyyyy", then xxxxxx and yyyyy should be two different, separate things, with no necessary relationship to each other.

E.g.,
There was lots of traffic on the highway, and I was late to work.
--> "Here are two bad things that happened to me today". No relationship.

Hello,

Can you please explain a bit more on highlighted part, especially bold part please?

Thank you.

[RonPurewal]

Do you understand the example that accompanies that part?

There was a traffic jam on the highway, and I was late to work.
--> These were two (unrelated) bad things that happened to me today.

There was a traffic jam on the highway, and so I was late to work.
--> The second was a consequence of the first.

As for a general explanation, I don't have much beyond what you've already highlighted in blue.

[Willy]

Do you understand the example that accompanies that part?

There was a traffic jam on the highway, and I was late to work.
--> These were two (unrelated) bad things that happened to me today.

There was a traffic jam on the highway, and so I was late to work.
--> The second was a consequence of the first.

As for a general explanation, I don't have much beyond what you've already highlighted in blue.

Yes, I did get the examples but got confused a bit. But now, when I am thinking it over again and trying to make counter-sentence, I am not able to make any such sentence that break this rule.

Thank you sir.

[tim]

Cool. Let us know if there are any further questions on this one.

[RonPurewal]

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