这是manhattan上的一段话: “Do not use a comma before and to separate two verbs that have the same subject. Either eliminate the comma or add a subject to the second verb, creating a second main clause. Wrong: Earl walked to school, and later ate his lunch. Right: Earl walked to school and later ate his lunch. Right: Earl walked to school, and he later ate his lunch.”
但第一种Wrong的情况,用的很普遍啊~~比如: “ the yellow jacket’s stinger is smooth, and can therefore be pulled out and used again” 这样按manhattan上来说不就不对了么?
“ the yellow jacket’s stinger is smooth, and can therefore be pulled out and used again” 这样按manhattan上来说不就不对了么?
ya, this isn't *normally* the way such things are punctuated, but there are lots and lots and lots and lots of exceptions to punctuation rules. fortunately, punctuation is NOT tested on the gmat.
note the warning on the same page of the strat guide -- the warning that says "gmat doesn't test punctuation errors". basically, you should use punctuation as a guideline for understanding sentences, but you should NOT try to eliminate choices by using "punctuation errors". that is not something that is tested on this exam. ————————————摘自manhattan Ron