Thank you for your inquiry regarding two Sentence Correction questions and their explanations in The Official Guide for GMAT Review.
My colleagues and I have examined the questions and their explanations in light of your inquiry, and we have determined that your confusion is entirely justified: there is a printing error in question 141, option C. Nonrestrictive clauses should indeed be set off by parenthetical commas, and there should therefore be a comma after "twins" in option C. We appreciate your calling this error to our attention, and we will revise the question for future editions of the Guide.
Thank you very much for taking the time to share your concern with us. We are always grateful to receive inquiries such as yours because they help us to improve the quality of our tests and test preparation materials.
Thank you for your inquiry regarding two Sentence Correction questions and their explanations in The Official Guide for GMAT Review.
My colleagues and I have examined the questions and their explanations in light of your inquiry, and we have determined that your confusion is entirely justified: there is a printing error in question 141, option C. Nonrestrictive clauses should indeed be set off by parenthetical commas, and there should therefore be a comma after "twins" in option C. We appreciate your calling this error to our attention, and we will revise the question for future editions of the Guide.
Thank you very much for taking the time to share your concern with us. We are always grateful to receive inquiries such as yours because they help us to improve the quality of our tests and test preparation materials.
以下是引用gemj在2003-11-24 0:31:00的发言: 好象不是特指与泛指的区别吧? 我的理解是,介词短语与从句修饰的意思不一样: twins with the same genetic endowment 翻成汉语的意思是:具有相同基因构成的同卵双胞胎。 言外之意是还有“不具有相同基因构成的同卵双胞胎。”
而 involves identical twins who have the same genetic endowment 的意思是:涉及同卵双胞胎,而(同卵双胞胎)具有相同基因构成。 也就是定语从句是对其修饰对象的解释,而非限定。 或者说定语从句是与其修饰对象可以划等号,而介词短语却不可以。
以下是引用atasl在2003-12-11 17:22:00的发言: 对这道题我不解的就在于此。ets明明说C中:“a nonrestrictive clause beginning with who to describe the characteristic attributed to all identical twins.” 可在C中的“who have..." 之前根本没逗号,没逗号能叫”nonrestrictive clause”吗?是不是印刷错误?