灵鹊做题网必修二 选择
来源：学生作业帮 编辑：灵鹊做题网作业帮 分类：英语作业 时间：2024/04/28 17:37:18
_______ is often the case,children under 3 years old always turn to parents for help. A.Which B.As C.That D.What
解题思路： 如下
解题过程：
选B。as引导的非限制性定语从句可以放在主句之前、之中或之后，经常用于as is said above, as we know, as is well known, as is often the case, as is reported, as was expected等结构中，as含有"正如、正像"之意。
eg: As is often the case with young people, he is indifferent to money.
象大多数年轻人一样,他不在乎钱。
She is late，as is often the case.像往常一样,她又迟到了.
as指代She is late，as在分句中作主语。
which与as引导非限制性定语从句的区别：
which只能放在主句后面，而as引导的从句位置相对较灵活，可在前，可在中，也可在后。例如：
A) As he realized, I was very useful to him.(在前)
B) Air, as we know, is a gas.（在中）
C) He was a foreigner,as I know from his accent.(在后)
最终答案：略
解题过程：
选B。as引导的非限制性定语从句可以放在主句之前、之中或之后，经常用于as is said above, as we know, as is well known, as is often the case, as is reported, as was expected等结构中，as含有"正如、正像"之意。
eg: As is often the case with young people, he is indifferent to money.
象大多数年轻人一样,他不在乎钱。
She is late，as is often the case.像往常一样,她又迟到了.
as指代She is late，as在分句中作主语。
which与as引导非限制性定语从句的区别：
which只能放在主句后面，而as引导的从句位置相对较灵活，可在前，可在中，也可在后。例如：
A) As he realized, I was very useful to him.(在前)
B) Air, as we know, is a gas.（在中）
C) He was a foreigner,as I know from his accent.(在后)
最终答案：略