Manhattan上在第六章关于修辞的练习题第5题,更改后正确的句子是: Many buys cookies made with SugarFree,an artificial sweetener,which tastes as sweet as the corn syrup that her brother loves but which contains fewer calories than does an equivalent amount of corn syrup. 我的问题是,为什么as sweet as 后面没有does?而后面一句的比较中就有does. 求指点~~
Mary buys cookies made with the artificial sweetener SugarFree, which tastes as sweet as the corn syrup that her brother loves but which has fewer calories than does an equivalent amount of the corn syrup.
不太理解为什么前面用了which后面but后还要再加一个which? than does中的does 为什么前置呢?
哦,明白了。 前一个分句....SugarFree, ... , which tastes as sweet as the corn syrup that her brother loves是主谓结构进行主语比较(sugarfree tastes sweet),所以不加does也不会引起歧义;后一个分句 which contains fewer calories than does an equivalent amount of corn syrup是主谓宾结构(sugarfree contains clories),所以比较后必须加does以避免变成宾语比较带来的歧义。 太感谢啦~~~