With age,the mineral content of human bones decreases,______ them more fragile.A makeB and to makeC thereby making D which it makes选哪个?为什么?
问题描述：
With age,the mineral content of human bones decreases,______ them more fragile.
A make
B and to make
C thereby making
D which it makes
选哪个?为什么?
答
选C
意思是随着年龄增长，人的骨骼里含的矿物减少，这使骨骼变的脆弱。
定于从句应该用which makes,答案没有，排除A，不是表示目的B不对，D多了it,只能选C，加上thereby表结果，变成结果状语
答
选C，用排除法，make放这里不合适，and前不能有逗号，which后面不能跟it
答
C句意为：随着年龄的增长,人的骨骼的矿物质在减少,因而使骨头变得脆弱.重点在于分清句子结构,分析如下：With age,状语the mineral content of human bones主语decreases谓语 thereby making them more fragile.结果...