现在完成时是英语中的一种时态。它表示动作或状态从过去某个时间点开始一直延续到现在或者刚刚结束。在使用现在完成时疑问句时,需要将助动词 have/has 提前,放在主语之前,以此来构成疑问句。下面是一些现在完成时疑问句的例句:
- Have you ever been to Paris? (你去过巴黎吗?)
- Has she finished her homework yet? (她完成作业了吗?)
- Have they seen the new movie yet? (他们看过那部新电影吗?)
- Have you guys been studying English for a long time? (你们学英语学了很长时间了吗?)
- Has he eaten breakfast yet? (他吃早餐了吗?)
- Have you lived in this city for a long time? (你在这个城市住了很长时间了吗?)
- Has she ever visited the Great Wall? (她去过长城吗?)
- Have they been working on the project for a week? (他们做这个项目已经一个星期了吗?)
- Have you seen the latest episode of your favorite TV show? (你看过你最喜欢的电视节目的最新一集了吗?)
- Has he ever tried sushi before? (他吃过寿司吗?)
以上是一些现在完成时疑问句的例句。通过这些例句,我们可以更好地理解现在完成时的用法。在使用时,我们需要注意主语的单复数和助动词 have/has 的搭配,以及时态的正确使用。