网友提问的这个句子,是个错句。This year’s production is five times what it was twenty years ago. (误)
网友的句子涉及两个问题:1.倍数表达法;2. what 是个什么从句。
1. 倍数表达法:“倍数+ what 从句” 型
The value of the house is double what it was. 这个房子的价值是原来的两倍。
Now people's average income is almost five times what they earned ten years ago.人们的平均收入差不多是十年前的五倍。
2. what 除了引导特殊疑问句(分直接疑问句和间接疑问句,作名词性从句时叫间接疑问句),表示“疑问概念”之外,它还有一个作用,叫做“融合性关系代词”(传统语法书叫做“复合关系代词”或“复合连接代词”),因为它身兼两职:既是先行词,又是关系代词。例如:
This is what I want. what = the thing(s) that
所以,以上两句的 what ,是针对前文的某个名词,如果用先行词和关系代词表示的话,分别是:
1. what = the value that
2. what = the income that
◆据此,可以判断出,网友的句子有错误:
This year’s production is five times what it was twenty years ago. (误)
This year’s production is five times the production that it was twenty years ago. (误)
——错误在于,it was 无所指,无意义。
修改如下:
This year’s production is five times the production of twenty years ago.
This year’s production is five times that of twenty years ago.
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