为什么用as

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/05/16 08:43:49

解题思路： as引导非限制性定语从句，as 有“正如……，正像……”的意思。
解题过程：
38.选C。句意是：正如报道的一样，所有的学校不久将重新开学。
由is announced可以判断，横线处应该是主语，而主语必须由名词、代词或动名词、不定式担任，故先排除D. When，因为when是副词。
A选项的“It”在这种结构中只能充当形式主语，真正的主语必须是后面的主语从句或不定式或动名词，所以，如果要选择A，就得将announced后面的逗号改为主语从句的引导词“that”，全句正确的表达式为：It is announced that all the schools will reopen soon.
that不能引导非限定性定语从句，故不选B。
C选项的“As”此处意为“正如……那样”，as引导的是非限制性定语从句，as是关系代词，在定语从句中作主语。综上所述，as在含意上和语法上均正确，故选C 。

最终答案：如上

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