Question

Do you think who the best student is？

Do you think who the best student is？还是Do you think who is the best student？
如果是do you think 做插入语呢？
像是What do you think is the best student?还是What do you think the best student is?
(英语书上印的是What do you think is the best student?，老师的解释是what做主语，do you think 是插入语，后面是主系表结构，但是不太清楚如果变成Do you think……的话应该用什么语序）
诶呀，不好意思，是Who do you think is the best student?还是Who do you think the best student is?

如果是Do you think who is the best student?的话，可视为宾语从句，who作主语，而Do you think who the best student is？的话，宾语从句中，the best student 作主语，who作表语，这样解释两种说法就都正确了，我的疑点在这里。

Answer 1

用what疑问代词，用来代替人the best student很不合适。应该用who。哪本书用what接student?
至于who do you think the best student is?和who do you think is the best student是否可以见以下分析，二者疑问代词的成分不一样。先去掉插入语看看.
who the best student is .这不是一句话，因为词序不对。众所周知插入语是可以去掉的，不可能说插入语去掉了，句子就错了。所以,who do you think the best student is.中do you think 不是插入语。这句话本身就是病句。而Do you think who the best student is 对不对呢?这句话语法没问题，但是句意有问题，do you think ~~~~后面应该接一个观点或名词性句子。而此处who the best student is 虽然是宾语从句，但是这句话意思不通顺。
who do you think is the best student?这句话是对的。去掉插入语后，为who is the best student.
语法句意都没问题。意思是：你认为谁是最好的学生。

追问

Do you think who the best student is ？ 意思为什么不通顺呢？

追答

do you think 后面应该接一个表达完整意思的名词性从句。
如：do you think participating in the competion is good idea?
这里participating in the competion is good idea .表达了一个完整的意思。
这是在问你的观点是不是这样。
do you think 什么什么~~~~
而你这句话呢。
do you think who the best student is.
who the best student is.本身等同于 the best student.
who the best student is 意思是最好的学生的样子。who 做the best student is的表语。
do you think who the best student is.只能理解成“你认为最好的学生？”这是话吗？？？

Answer 2

Do you think who is the best student.这是宾语从句，从部分要用陈述语序，即主语＋谓语。Who做主语，所以后面应该接谓语is.

Answer 3

应该是do you think who is the best student?
do you think 在这两种情况下一样的，顺序改变不影响啥的

Answer 4

Do you think who the best student is？这里do you think无法做插入语，think 后街宾语从句，用陈述语气。

Answer 5

Do you think who is the best student?是正确的.这是复合句,who is the best student是宾语从句,在此从句中,who才是主语，is是谓语。如果do you think作插入语的话,就是What do you think is the best student? 不过一般是用Who,因为对象是人嘛。

Answer 6

Do you think who the best student is?和Who do you think is the best student?都是正确的。
第一句：是从句，think后省略了连接词that。do you think是主句，后面是从句，从句都要用陈述句语序。
第二句：是简单句，do you think只是插入语，可以删掉不看，所以整个句子用特殊疑问句的语序。