单选题
4.What ( ) in their spare time?
A
do the students often read
B
the students often read
C
the students do often read
答案解析
正确答案:A
解析:
这道题考查的是**特殊疑问句的语序**。
### 解析过程:
1. **判断句子类型**:
句子以 "What" 开头,且后面有问号,说明这是一个**特殊疑问句**。
2. **特殊疑问句的结构规则**:
英语中特殊疑问句的基本结构通常为:
> **疑问词 + 一般疑问句语序(助动词/情态动词/be动词 + 主语 + 谓语动词其他部分)?**
或者更具体地针对实义动词的一般现在时:
> **疑问词 + do/does + 主语 + 动词原形 + 其他?**
3. **分析选项**:
* **A. do the students often read**
* 结构:`do` (助动词) + `the students` (主语) + `often` (频率副词) + `read` (谓语动词原形)。
* 符合“助动词 + 主语 + 谓语”的一般疑问句语序。
* 代入原句:*What do the students often read in their spare time?* (学生们在业余时间经常读什么?)
* **语法正确**。
* **B. the students often read**
* 结构:`the students` (主语) + `often read` (谓语)。
* 这是**陈述句语序**,缺少助动词 `do`。在特殊疑问句中,如果疑问词不是作主语,必须借助助动词构成倒装。
* **语法错误**。
* **C. the students do often read**
* 结构:主语在前,助动词 `do` 在主语之后。
* 这既不是标准的陈述句语序(陈述句通常不需要加 do,除非表示强调),也不是疑问句语序(疑问句助动词需提前)。
* **语法错误**。
### 结论:
根据特殊疑问句的构成规则,必须使用倒装语序,即助动词 `do` 要放在主语 `the students` 之前。
因此,正确答案是 **A**。
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