1.此题正确答案的确是C.
2.
1)既然是more...than...引导两个并列句,则此两句句型必须保持一致.
注意:此题than所表示的比较不是“happy”程度的比较,而是两句之间的比较.因为happy并没有变成比较级happier,而只是原级(very)happy.
2)既然两句结构必须一致,则分析如下:
前句:marriedadultssaidtheywere"veryhappy"
后句:those(whonevermarried)saidtheywere"veryhappy"
两句之间用more...than...进行对比,即为:
Moremarriedadultssaidtheywere"veryhappy"thanthosewhonevermarriedsaidtheywere"veyhappy".
3)此时后句的saidtheywere"veryhapppy"相同,则可以用did进行代替,即为:
Moremarriedadultssaidtheywere"veryhappy"thanthosewhonevermarrieddid.
4)根据英语语法规定:
由than引导的比较状语从句一般为正常语序.但是如果主语较长的话,可将谓语动词置于主语之前,形成完全倒装,而且考试时常常考查这一点.
该从句的主语为thosewhonevermarried,比较冗长,为了避免英语中比较顾忌的头重脚轻的毛病,则把主语whosewhonevermarried后置,而把谓语did(代替saidtheywere"veryhappy")提前,即为:thandidthosewhonevermarried.
5)由上分析可知,正确答案为C.