英语中什么时候用do?
对动词的提问,用do、have、would等放句首来提问。对名词形容词的提问用be动词are、is、am。
1、do和does是助动词,当一句话已经有动词时,我们通常用助动词提问
Do you like apples?
你喜欢苹果吗?
2、对名词形容词的提问用be动词are、is、am。
Are you a student?
你是学生吗?
一般疑问句可以有否定形式,其结构为:
be, have或助动词否定缩略式+主语+(主动词)…?例如:
—Aren’t you going to buy that motorbike?
你不打算买那辆摩托车吗?
—Yes, I am. 不,我买。
No, I am not. 是的我不买。(与中文表达习惯不同)
扩展资料
1、将陈述句变为一般疑问句时
如果句中有be动词(am is are …)时,可直接将它们提至主语前。如主语为第一人称,应将其改为第二人称。
如:I'm in Class 2 Grade 1. → Are you in Class 2 Grade 1?
We're watching TV. → Are you watching TV?
2、陈述句中有情态动词(can may must …)时
可直接将它们提至主语前,即可成为一般疑问句。如:
He can swim now. → Can he swim now?
The children may come with us. → May the children come with us?
3、陈述句中只有一个实义动词作谓语…
且其时态为一般现在时,变为一般疑问句时要在句首加do或does主语后的实义动词用原形。如:
I like these animals. → Do you like these animals?
She wants to go to the movies. → Does she want to go to the movies?
1. 做某事(表示行为):I do my homework every day.(我每天都做作业。)
2. 表达肯定或否定:She doesn't like coffee, but she does like tea.(她不喜欢咖啡,但她喜欢茶。)
3. 强调:I do like chocolate!(我确实喜欢巧克力!)
4. 替代动词:I can't swim, but he can do it.(我不会游泳,但他会。)
5. 作为助动词:Do you like pizza?(你喜欢披萨吗?)
6. 表示重复动作:I do the laundry twice a week.(我一周洗两次衣服。)
7. 用于疑问句:Do you have any questions?(你有什么问题吗?)