Question

13．你认为这所学校是什么时候建造的？
When do you think the school was built？．

Answer 1

分析 When do you think the school was built？

解答 答案：When do you think the school was built？这里我们用你认为do you think作为插入语来表达，这是一个特殊疑问句，do you think需紧跟在疑问词/短语之后，且其后的成分采用陈述句序，疑问词是when，表示这所学校是什么时候建造的，是过去的事用一般过去时，后面的陈述句序，主语是the school，是动词建造build的承受者，构成被动关系，故用一般过去时的被动语态was/were+过去分词，主语是单数，用was，build的过去分词是built，故答案是When do you think the school was built？

点评 1．如果在疑问句中，do you think紧跟在疑问词/短语之后，且其后的成分采用了陈述句序的话，此时它就是插入语．
如：How old do you think she is？你认为它有多大？
其中，how old为疑问词，而she is为陈述句序．
2．如果do you think在从句中使用时，则必须改成you think．
如：I‘d like to talk with the boy who （you think） is the cleverest student in your class．
3．如果不是上述两种情况，则不是插入语．
如：Do you think he is a student？