题目选项分析

比较两个句子语法结构语义，选出最佳答案：

Doctors hope that one day the body's master cells, called stem cells, can be directed to grow in organs or tissues appropriate for transplant, use them to test drugs and potentially toxic chemicals, and may study them to gain insight into basic human biology.

Doctors hope that one day the body's master cells, called stem cells, can be directed to grow in organs or tissues appropriate for transplant, used to test drugs and potentially toxic chemicals, and studied to gain insight into basic human biology.

写下分析过程，便于复习“吃透”这个句子：

答对用户笔记

0人: 学员etYHUL 2023-04-29 21:12:53

宾语从句的主语是body's master cells,如果用了use，那就是和be并列的，句子结构上就不通顺，就成了body's master cells can use them ...并且这个them明显指代的就是cells

0人: AustinZetian 2020-11-12 16:25:52

them指代不清。不知道rgans，是指代tissues or organs，还是master cells.排除正确选项中，平行的是can be directed, used to xxx and studied to xxx

0人: Hannah22 2018-12-15 11:38:28

三件独立的事情，平行结构

0人: joycezhao74 2017-12-19 23:44:36

语法上: hope 和use中间缺连词 run on
语义上: them指代不清楚，应该指代organs 和 tissues

0人: Ym032488 2017-12-12 20:04:21

并列中can be 可以省略

题目基本信息

所属科目：语法SC
题目来源1：GWD-209

难度：难