在英语的句型中一般在什么情况下用到is are am...又一般在什么情况下用到do does
问题描述：
在英语的句型中一般在什么情况下用到is are am...又一般在什么情况下用到do does
答
is am are +形容词you are beautiful
一般疑问句do does置于句首do you want to go home？
do 也用于强调句i do believe that.......(我坚信。。。。）
答
Is he a student?
Am I beautiful?
Are they ten years old?
这些主系表结构的句子中需要be动词
Do they like playing basketball?
Does he look like his father?
这些后面是动词,诸如play 、look,他们做一般疑问句的时候需要借助助动词do或者does