最后再简单总结一下前面的观点,便于后来人阅读: 支持C的理由(that): 整句结构:"...three times (as much as) the price (插入语) that the drug's maker charges for another product..." 1。that 做限定性定语从句的引导词 2。charge (some money) for (something) 3。X times (as much as) A (as much as可省略) 反对D的理由(of what): "...the price of what the drug's maker charges ..." the price of sth 结构中sth.应该指某件物品。但此处what指代price, price of price错了语感之所以觉得of what对,是因为price of用惯了,但必须注意逻辑,逻辑不对还是错。 反对E的理由(at which) charge at (some price) for (something)不符合语法习惯。 欢迎讨论。 这里price that 中的that在后面一句中做宾语成分,我想或许是可以省略的! :"...three times (as much as) the price the drug's maker charges for another product..." 1。不要THAT 好象没有什么问题呀 如OG9 one that 就省略了 9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that they believe is a type previously unknown to science. (A) that they believe is (B) that they believe it to be (C) they believe that it is of (D) they believe that is (E) they believe to be of Choice E is best. The pronoun that in A and B should be deleted, since the pronoun one is sufficient to introduce the modifier and the sentence is more fluid without that. In B and C, it and that it are intrusive and ungrammatical: the idiom is "believe x to be y." In the context of this sentence, the infinitive to be is more appropriate than the limited present-tense is in referring to an event that occurred long ago but has been discovered only recently. Finally, A, B, and D lack o/and so illogically equate this particular explosion with the whole class of explosions to which it belongs: it is not a type but possibly one of a type. Ets对所有定语从句中不做主语成分的THAT均要求省略,这里THAT 从句作为ONE 的定语从句,省! |