背诵这些句子，英语语法再也不用愁了！It 句型 1. It is/has been 3 years since he got married. 他结婚 3 年了。 2. It will be 3 years /a long time before everything returns to normal. （将）要 3 年/很长时间一切才恢复原状。 3. It was 3 hours before the fire was put out. 过了三个小时大火才被扑灭。 4. It won’t be long before he comes back. 不会要很久他就会回来的。 5. It/This is/was the first(second) time (that) I have been/had been here. 这是我第一（二）次我来6. It makes no difference to me when the sports meeting will be held. 运动会什么时候举行对我说无关紧要。 7. Two many students find it difficult to get into the classroom on time in the morning. 太多学生觉得早上准时到校很难。 9. It was Oct 1st, 1949 when PRC was founded. 中华人民共和国成立的时间是10. It was on Oct 1st, 1949 that China was founded. 中华人民共和国就是在 1949 年 10 月 1 日成立的。 虚拟语气 11. If I were you, I wouldn’t help him. 假如我是你，我就不会帮他。（与目前） 12. If it were to rain tomorrow, I wouldn’t go for the picnic. If it should rain… If it rained … 假如明天下雨，我就不去野餐。（与未来）13. If you had come earlier, you would have met him. 假如你早一点来你就会遇上他了。（与过去） 14. (How)I wish I knew the answer now, but I don’t know. 我 但 愿 我 目 前 懂 得 答 案 。（wish） 15. (How)I wish I had known the answer, but I didn’t know. 我但愿我当时懂得答案，但我不懂得。（wish） 16. I would rather you had finished your homework. 我宁愿你已经完毕了作业。（would rather） I would rather (that) you came to see me tomorrow. 我宁愿你明天来看我。 I would rather (that) you left now. 我宁愿你目前就离开。 17. If only I had been to Beijing. 要是我去过北京就好了。（if only） 18. If you had taken/followed the doctor’s advice, you would recover now...
