题库> 语法 SC> SC-95ccsh

题目选项分析

比较两个句子语法结构语义，选出最佳答案：

All Y chromosomes in existence today are descended from the Y chromosome of a single ancestor who is thought to have lived about 140,000 years ago.

All Y chromosomes in existence today are descended from a single ancestor's who is thought to have lived about 140,000 years ago.

写下分析过程，便于复习“吃透”这个句子：

答对用户笔记

1人: heyuhang66 2019-08-21 10:19:18

have lived about 140K years ago 为什么正确

0人: 学员etYHUL 2023-04-30 08:43:31

主语是All Y chromosomes ，那么根据逻辑也是从Y chromosome 传下来，而不是ingle ancestor,A项逻辑上有问题
who用来修饰名词，怎么会修饰所有格ancestor's

0人: 让孩子上七百吧 2019-11-13 18:10:49

"who" can only used as the pronoun of people, so Y chromosomes cannot meet the rule

0人: joycezhao74 2017-12-20 21:31:32

who就近修饰ancestor's 不符合语义

题目基本信息

所属科目：语法SC
题目来源1：GWD-210

难度：中等