1.What do you do 涉及到的语法点,两个do的含义,为什么不可以用一个do,请将全面点,

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/11/08 13:42:20

1.What do you do 涉及到的语法点,两个do的含义,为什么不可以用一个do,请将全面点,
2.How many lessons do you have every day?为什么不可以说成How many do you have lessons every day?
3.What does he do in the afternoon 为什么不可以说成What does he in the afternoon?
4.They don't do their homework in the morning.为什么不可以说成They don't their homework in the morning.

1前面一个do是助动词,英语里面的句子肯定句里面只需要助动词,直接用动词就可以了,但是当它变成否定句或者一般疑问句,特殊疑问句的时候就需要加上助动词do.它还会随着主语和时态的不一样发生变化.后面一个do就是动词了,相当于做的意思.
2是对lesson的数量提问,回答的时候也应该是有多少课,这里的how many代替了多少课来修饰lesson.
3does是助动词在主语为第三人称时do的变形,所以后面还需要动词do.
4动词构成的句子的否定句的构成方式就是在动词前面加do not.后面的do才是真正的动词.
主系表的句子是在be动词后面加not.

what do you do 的语法结构和do有关的语法问题what color do you like为什么要有do, Do you have a soccer ball?请详细的分析一下这个句子中涉及到的语法点?比如have一般现在时等. how do you think of it和what do you like it的区别属于什么语法点 what to do的语法最好简洁且全面一点 do you remember what you were doing?不可以用do you remenber what How do you do?的答句为什么可以是What do you do how do you do的特殊含义英语.补充为什么、What do you like for lunch?为什么用For at 不可以么? 1.What do you do? what do you do?的同义句 what do you do 的回答