prep1-90

hxfnp92 · 发表于 2013-3-16 17:49:26

90. (29431-!-item-!-188;#058&003914)

Archaeologists in Egypt have excavated a 5,000-year-old wooden hull that is the earliest surviving

example of a "built" boat--in other words, a boat constructed out of planks fitted together--and that

thus represents a major advance, in terms of boat-building technology, over the dugout logs and

reed vessels of more ancient vintage.

(A) together--and that thus represents

(B) together--and this has represented

(C) together, and it represents

(D) together that was representing

(E) together to represent

考点:平行对称（Parallelism）句子结构（Grammatical Construction）

1)用破折号隔开的成分相当于插入语起到额外的解释说明作用,去掉后不影响句子结构

2)代词it/this/that不能单独充当主语,必须加上名词才能作主语

3)不能随意更改原句的意思

(A)正确, that is… and that thus represents限定性定语从句的并列,同时修饰a 5,000-year-old

wooden hull,由于该并列结构存在着因果关系,因此添加副词thus修饰represents表明该逻辑关系

(B) this单独充当主语,错误;随意使用现在完成时,改变了原句的意思,并没有证据表明一定要使用现

在完成时

(C) and连接独立的句子，在语法上应与主句并列，但此处在逻辑意思上讲应与定语从句that is…并列。

(D) that was representing结构从语法上修饰a boat,从而改变了原句的意思

(E) to represent从语法上修饰constructed out,从而改变了原句的意思

以上是PREP语法笔记，按笔记说THIS THAT都不能做独立主语，A和B的结构不是大致相同么，A的THAT就不是独立主语么，B的THIS就不能指代主语么？

lifeforest · 发表于 2013-3-16 19:00:02

A 的句式是 a wooden hull that is...and that thus represents...的两个并排定语从句，主语都是同一个wooden hull。如果去掉第一个从句，句子仍然完整-a wooden hull that thus represents....

B的句式是a wooden hull that is....and this has represented...出现了两个主语-wooden hull 和 this。去掉第一个从句，句子变成a wooden hull this has represented。

A跟B有本质的不同。

本贴相关题目 GMATPrep-2007E1-SC-90 | TN-23-SC-41 (IYDU)

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