【this(is及the及first及time句型)】在英语学习中,"This is the first time" 是一个非常实用且常见的句型,常用于表达某人第一次经历某种情况或做某件事。这个句型不仅语法结构简单,而且在日常交流和写作中都非常常见。掌握它可以帮助我们更自然地表达自己的经历和感受。
一、基本结构
"This is the first time" 的基本结构是:
This is the first time + 主语 + have/has + 过去分词(表示完成时态)
例如:
- This is the first time I have visited Beijing.
(这是我第一次参观北京。)
- This is the first time she has seen the ocean.
(这是她第一次看到大海。)
在这个句型中,“have/has” 是现在完成时的助动词,用来表示动作已经发生,并且对现在有影响。而“first time”则强调这是第一次发生的事情。
二、用法与注意事项
1. 主语要与“have/has”保持一致
- 如果主语是第三人称单数(如 he, she, it),则使用 “has”。
例:This is the first time she has traveled abroad.
- 如果主语是复数或第一、二人称,则使用 “have”。
例:This is the first time we have met.
2. 可以接从句
"This is the first time" 后面通常接一个完整的从句,说明具体是什么事情。
例:This is the first time that I have heard of this song.
3. 可以用于过去时态
虽然大多数情况下使用现在完成时,但有时也可以根据上下文使用过去时。
例:It was the first time I had ever been to Paris.(这是我去巴黎的第一次。)
三、常见搭配与例句
| 句型 | 例句 |
|------|------|
| This is the first time + 主语 + have/has + 过去分词 | This is the first time I have eaten sushi. |
| This is the first time that + 主语 + have/has + 过去分词 | This is the first time that he has passed the exam. |
| It was the first time + 主语 + had + 过去分词 | It was the first time she had spoken in public. |
四、拓展表达方式
除了 "This is the first time",还有一些类似的表达方式可以用来替换,使语言更加丰富:
- I have never done this before.
- This is my first experience with...
- It's the first time I've ever...
这些表达方式都可以用来描述第一次的经历,但语气和用法略有不同,可以根据具体语境选择使用。
五、实际应用举例
1. 口语中
- A: Have you ever tried Korean food?
B: No, this is the first time I've tasted it.
2. 写作中
- When I arrived at the airport, it was the first time I had traveled alone.
3. 演讲或自我介绍
- This is the first time I'm giving a speech in front of a large audience.
总之,"This is the first time" 是一个非常实用的句型,适用于多种场合。通过熟练掌握它的结构和用法,可以让你的英语表达更加地道和自然。希望这篇文章能帮助你更好地理解和运用这个句型。