原题如下：Heart disease,【it having developed often unnoticed for many years】,is sometimes the result of a poor diet.括号内部分有两种改动方法：1、often developing unnoticed for many years2、with often unnoticed developing for m
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原题如下：Heart disease,【it having developed often unnoticed for many years】,is sometimes the result of a poor diet.括号内部分有两种改动方法：1、often developing unnoticed for many years2、with often unnoticed developing for m
原题如下：Heart disease,【it having developed often unnoticed for many years】,is sometimes the result of a poor diet.
括号内部分有两种改动方法：
1、often developing unnoticed for many years
2、with often unnoticed developing for many years
答案选的1,不过1中develop是动词,那unnoticed不该是副词形式吗?为毛还是形容词形式?
还有2项有硬性语法错误吗?还是仅仅看上去太麻烦?
原题如下：Heart disease,【it having developed often unnoticed for many years】,is sometimes the result of a poor diet.括号内部分有两种改动方法：1、often developing unnoticed for many years2、with often unnoticed developing for m
这道题纯粹考的是非谓语结构
首先B完全正确 .
it having developed often unnoticed for many years 在这句里是一个独立主格结构,有完整的逻辑上的主谓宾成分,但是在语法上又不是一个独立的结构标准的句子.
把它变成变成独立完整的标准句子,应该是：it has been developing often unnoticed for many years.
但是在最外层的完整的句子中“Heart disease is sometimes the result of a poor diet”是不可能直接就插入另一个完整句子的,所以就要用这样的独立主格结构来保证语法上的正确.
这个独立主格结构也可以改写成定语从句的形式 “which has been developing often unnoticed for many years" ,也可以改写成现在分词的结构,就是“developing often unnoticed for many years”其中,developing 是整个最外层主句的伴随状语,但我更倾向于看成是状语,
often unnoticed 是作为 developing for many years 的伴随状语,意即,”心脏病已经而且仍然在继续不断的发展好几年了,通常都是没有被引起注意的“.答案中把 often 提前到 developing 的前面,也主要是从句子的整体结构平衡的角度考虑,所以也是可以的.
D中的 with 显然用法错误,一般是 with sth doing 的结构,不可能直接在介词with 后面跟个分词的.所以错误.介词绝对不能直接加过去分词的.
由于独立主格结构的逻辑主语与主句主语一致,就可以退化为一般的分词结构就如选项B.