英语中有三种不同的条件句,它们分别是:第一条件句,第二条件句和第三条件句。
第一条件句
第一条件句通常用来表达可能发生的情况或现实中可能出现的情况。它的结构是:“If + 现在时,将来时”。例如:
- If it rains tomorrow, I will stay at home.(如果明天下雨,我会呆在家里。)
- If I have time, I will go to the gym.(如果我有时间,我会去健身房。)
- If you study hard, you will pass the exam.(如果你努力学习,你会通过考试。)
第二条件句
第二条件句通常用于表达不太可能的或不可能的情况。它的结构是:“If + 过去时,将来时”。例如:
- If I won the lottery, I would buy a big house.(如果我中了彩票,我会买一所大房子。)
- If I had more time, I would travel the world.(如果我有更多时间,我会周游世界。)
- If I were you, I would take a break.(如果我是你,我会休息一下。)
第三条件句
第三条件句通常用于表达假设的过去情况,但现在已经无法改变。它的结构是:“If + 过去完成时,将来完成时”。例如:
- If I had studied harder, I would have passed the exam.(如果我更努力学习,我就会通过考试了。)
- If I had known you were coming, I would have cleaned the house.(如果我知道你要来,我就会打扫房子了。)
- If we had left earlier, we would have caught the train.(如果我们早点走,我们就能赶上那趟火车了。)