(D) 正确,but are表明了but在这里只能作为连词,构成be not… but (be)…的平行结构 与76题相似! sth be not ... but (be) ...
介词短语:on account of, because of, despite (in despite of), as a result of, due to之后只跟简单的名词短语。若其后面跟的是动名词或名词所有格+动名词短语(sb’s doing),或名词短语之后用一复杂的现在分词来修饰时或后面跟动词的抽象名词形式,应改为与其相同意义的连词because, although等引导的从句形式。 but的用法: but做介词,表示除了… 例:No one has read it but the students. 或者用在词组not… but…举行中,作连词表示不是,而是的意思, 例: The plan caused not prosperity but ruin.
如果没有are,but可能是连词,有歧义;所以避免歧义,留下are
but作为连词
https://wiselike.com/dustin-deng/questions/og-sc-1
not...but...结构平行
不加are有歧义,感觉变成了because后面enhance的宾语
be not… but (be)…的平行结构,注意be可省略可不省略
favored 是过去分词作主语补足语,Paleontologist Stephen Jay Gould has argued that many biological traits are not the products of natural selection, i.e. those biological traits are favored because they enhance reproduction or survival, but they are simply... 结构为,A are not B, B', but are C 类似于 The building is the highest in China, built in the last century.
be not...but be 平行
加上are才能说明是和are not并列,否则可能和reproduction or survival并列。
考点: 逻辑表达(Logical Predication) 平行对称(Parallelism) 1) 介词短语:on account of, because of, despite (in despite of), as a result of, due to之后只跟简单的名词短语。若其后面跟的是动名词或名词所有格+动名词短语(sb’s doing),或名词短语之后用一复杂的现在分词来修饰时或后面跟动词的抽象名词形式,应改为与其相同意义的连词because, although等引导的从句形式。 2) but的用法: but做介词,表示除了… 例:No one has read it but the students. 或者用在词组not… but…举行中,作连词表示不是,而是的意思, 例: The plan caused not prosperity but ruin. (A) due to +动词的抽象名词形式,表达不够有效;not…but…连接的结构不平行。 (B) due to +动词的抽象名词形式,表达不够有效; they多余, 破坏了 sth/sb be not… but (be)…的结构 (C) but可能作为介词,产生because they enhance reproduction or survival, but simply random by-products的歧意 (D) 正确,but are表明了but在这里只能作为连词,构成be not… but (be)…的平行结构 (E) because of +动名词形式,表达不够有效 句子结构: …has argued that …traits are not the products…,favred because…, but are… favored…结构作为插入语修饰 products of natural selection
be not....but be结构记忆
把网站装进口袋
随时随地练习