Hi,
I appeared for gmat in oct 09 and scored 640 (Q49 V29). I was performing good in mock tests...Scored 720 and 740 in my last 2 gmat prep tests before the exam but unfortunately something went wrong in the actual exam. So i am planning to appear for gmat again and looking for a score of somwhere around 710+.
As you can see from my previous gmat score i need to work on verbal section. In verbal section specifically i am weak in SC's. In mocks also i scored fairly good in RC and CR section but SC's always dooms my overall score. Recently, i appeared for a gmat prep test and scored 690. Now, i want start my preparation again for the gmat hence, need some guidance in formulating the strategy.
Thanks
I would say you are on track if you have consistently scored 700+ on your GMATPrep tests (It's still a bit hard for me to believe actual scores that are significantly lower than GMATPrep scores have nothing to do with NOT holding your nerves on the test day).
For SC I would just say you need to analyze each question on the OG - that's all. If you see at the end of the day there are only a bunch of things that you need to know:
1. Modifiers - there are phrases which modify typically a known and the error introduced would try to modify something else, modify something that is not present etc.
2. Pronouns - essentially try to confuse you by not referring to the intended noun, not have a noun at all, change the number or case etc.
3. Comparisons - compare apples to apples and not oranges. A simple as it can get. Ensure you look at the classic traps - that, those, which etc.
4. Parallelism - ensure that everything that matches up to a verb has the same grammatical structure.
5. Subject-Verb Agreement - identify the correct subject and ensure that the verb acts on it is in the correct number. A bunch of "classic" traps such as additives etc.
6. Tenses - either the entire sentence stays in the same past or present tense (rarely will be it completely in future tense) or if multiple tenses are used there is a logical reason why they are so (observe for words such as "before" "and" etc). 1 special case being past and present perfect.
7. Idioms - just go through the "normal" list and you will figure out the pattern by the time you reach the end of the OG.
Over and above you need to have an eye for spotting anything that the OG would call "awkward and wordy". Apart from this you just need to ensure that you are able to understand what the sentence "means" and if you are able to correct it without making any changes to the meaning. A very key aspect is to understand the only way GMAT can make things tougher is by making it hard for your to understand what they are really saying. I mean try this one:
For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.
(A) each a roof of poles and arrowweed
(B) each a roof of poles and arrowweed that are being
(C) with each being a roof of poles and arrowweed
(D) with roofs of poles and arrowweed to be
(E) with roofs of poles and arrowweed that are
When you are solving such a question the last thing that comes to your mind is the all the rules of grammar. I keep telling this to everyone who cares to listen

When you are solving questions on the GMAT and you have about a minute for each of them you WILL NOT look into this question and talk about gerunds or past participles or preposition (ignore my grammar on this sentence

).
So why are we reading up reams and reams of grammar notes - online, offline, Manhattan pdf, saahil's notes, spidey's notes. We just end up "mugging up" rules with no freaking clue how it is going to help us. Did you know that the actual GMAT will NEVER and I repeat NEVER ask you to differentiate between WHICH and THAT. It will never make it a make or break rule atleast.
Another thing people worry about is the minor details and I blame Manhattan to a large extent for this. Though I have acknowledged the fact that they did codify the rules of grammar for GMAT in a better way than others, somehow they have lulled an entire generation (so to speak since I am counting the post-2005 post-Pearsvue generation in this) into believing that you can mug up a bunch of rules and walk your way into a 750+. The debriefs of your heroes who talk about who they cracked that 40+ raw score in verbal fails to mention one thing - that they would have done so even without the Manhattan guide - just that it made it easier for them. Somehow that is interpreted as "if-you-don't-mug-up-your-dead". And you have another bunch of dyed-in-the-wool-Manhattan-fanatic who will swear by his Subjunctive mood. I wish that were true but alas it is NOT! (note the use of subjunctive in my last sentence

).
Net net if you have a clear strategy towards solving questions, solve questions with a crisp approach and use grammar as a framework to solve you will never find SC to be troublesome.
Arun
PS: Another food for thought - I think you need to enjoy GMAT and treat each question as a challenge, as a puzzle. That way not only will you love the 12 odd weeks you spend doing it but also end up scoring great. But I know - easier said than done
Everything you need to know about GMAT in under 15minutes:
http://www.crackverbal.com/downloadebook.htm#