在英语语法中，宾语从句是一种重要的句式结构，用于表达一个句子作为另一个句子的宾语。掌握宾语从句的用法对于提高英语写作和阅读能力至关重要。以下是一些精选的宾语从句专项练习题，帮助大家巩固相关知识点。
练习题
1. 我不知道他什么时候来。
A) When he will come
B) When will he come
C) He will come when
D) When does he come
正确答案：A
2. 她告诉我她已经完成了作业。
A) She told me that she has finished her homework.
B) She told me that she had finished her homework.
C) She told me that she is finishing her homework.
D) She told me that she finishes her homework.
正确答案：A
3. 他问了我是否愿意一起去公园。
A) He asked me if I would like to go to the park with him.
B) He asked me whether I would like to go to the park with him.
C) Both A and B are correct.
D) Neither A nor B is correct.
正确答案：C
4. 老师说地球是圆的。
A) The teacher said that the earth is round.
B) The teacher said that the earth was round.
C) The teacher says that the earth is round.
D) The teacher said that the earth will be round.
正确答案：A
5. 妈妈想知道我们今天吃了什么。
A) My mother wants to know what we ate today.
B) My mother wants to know what did we eat today.
C) My mother wants to know what we eat today.
D) My mother wants to know what we have eaten today.
正确答案：A
解析与总结
1. 引导词的选择：宾语从句通常由that, if/whether等引导。当从句表示陈述事实时，使用that；而if/whether则用于询问是否存在某种可能性。
2. 时态一致性：主句和从句的时态需要保持一致。如果主句是一般现在时，从句可以使用任何时态；但如果主句是一般过去时，从句一般要改为相应的过去时态。
3. 语序问题：宾语从句的语序通常是陈述语序，即主语+谓语的形式，即使它本身是一个疑问句。
通过以上练习，相信大家对宾语从句有了更深入的理解。希望这些题目能够帮助大家在考试或日常学习中更加得心应手！
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答案解析已包含在上述练习题中，如有疑问可进一步探讨！
