DO YOU 是一般现在时的提问式,其后面必须加一个实实在在的动词,也即DO 是个没有意义的助动词;
而 ARE YOU的后面要跟名词、形容词、动名词(*坚决不能加纯粹的动词!)
DO YOU KNOW?(KNOW——动词!)
ARE YOU JOKING?(JOKING——动名词)
ARE YOU A GIRL?(A GIRL——名词)
ARE YOU OK?(OK-——形容词)
DO YOU 是一般现在时的提问式,其后面必须加一个实实在在的动词,也即DO 是个没有意义的助动词;
而 ARE YOU的后面要跟名词、形容词、动名词(*坚决不能加纯粹的动词!)
DO YOU KNOW?(KNOW——动词!)
ARE YOU JOKING?(JOKING——动名词)
ARE YOU A GIRL?(A GIRL——名词)
ARE YOU OK?(OK-——形容词)