为什么是how many apples do you need?不是应该是how many apples you (that ) you need?

问题描述:

为什么是how many apples do you need?不是应该是how many apples you (that ) you need?
对不起,that前的you无视掉吧- -
- 我的意思是,如同句子:are you sure there are UFos?不能为:“are you sure are there UFOs?
我要疯了。但我必须弄个明白。

前一个句子,是这样的句型,特殊故疑问句:特殊疑问词+一般疑问句(即Be动词/助动词/情态动词+主语+动词原形+其他)
而后一个句子how many apples (that ) you need?在句子构成上是错误的,并不是特殊疑问句.
然而问题补充中的,则不能跟这道题相提并论,are you sure后面应该是一个省略了that的宾语从句,必须用正常语序,而不能用疑问语序.