求对比这两个what！

Question

①Please tell me what are the dicisive causes of his success.

②Please tell me what you are doing？
求高人讲解：第二句就不能写成Please tell me what are you doing？了对么？
第一句what书作主语，第二句的what作宾语么？
第①句可以写成Please tell me what the dicisive causes of his success are.么？

Answer 1

第1句 可以按你的写法写的 Please tell me what the dicisive causes of his success are

第2句不可以

第一句不知道你看明白没
what are the dicisive causes of his success. 什么是他成功的决定性原因

hat the dicisive causes of his success are 他决定决定成功的原因是什么。

也就是说这个代词what 指带的内容既可以作主语也可以作宾语， 注意我上面的两个中文解释追问

谢谢您！所以说，what are the dicisive causes of his success. 这个waht是作主语。然后What the dicisive causes of his success are 的what是作宾语？

追答

对的

Answer 2

第2句不能写成Please tell me what are you doing
因为你这个后面的从句里面的句子要使用正常语序，你上面的写法是疑问句语序

第一句的what确实是主语，第二句的what作为do 的宾语

第1句可以改成你的Please tell me what the dicisive causes of his success are
这里面的what就是作为宾语了，不再是主语

Answer 3

第一个what是做主语，自然后面接它的谓语，看起来好像是倒装，但不是，它就是宾语从句所需的陈述语序。第二个what是做宾语，但需要放前面来引导，其它用陈述语序。

Answer 4

1.这两个都是宾语从句，第一个中what在宾语从句中做主语，第二句中what在宾语从句中做宾语；
2.宾语从句中的顺序是陈述句的顺序，疑问词要提前

Answer 5

在从句中要用陈述语序，第一句可以改，第二句就不行。