英語(yǔ)中什么時(shí)候用do和does
1、do和does可以用作實(shí)義動(dòng)詞，在一般現(xiàn)在時(shí)肯定句中，其中does用在第三人稱(chēng)單數(shù)，do用在其它人稱(chēng)中，如：
He does his homework everyday.
I do excercise every Fridday.
2、do和does可以用作助動(dòng)詞，完成一般現(xiàn)在時(shí)的問(wèn)句及回答和否定句中，其中does用在第三人稱(chēng)單數(shù)，do用在其它人稱(chēng)中，如：
Do you love me?/No, I don't.
Does he go to school everyday?/Yes, he does.
What do you do on Satudays?(第一個(gè)do)
What does he do every morning?
I don't like snakes.
He doesn't want to study English.
3、do可以作為實(shí)義動(dòng)詞，代替所提問(wèn)的動(dòng)作，用在特殊疑問(wèn)句的各時(shí)態(tài)中，如：
How do you do?（第二個(gè)do）
What did you do last night?