专升本英文时态变化重点项目：

1， If were you，I would/could/should do study hard 假如我是你，我就勤奋学习

2， If I had a chance ，I would/could/should study hard 假如我那时有两个良机，我很大要勤奋学习

（与那时历史事实恰好相反）

3， If I had finished my work ，I would/could/should have been better 假如我从前顺利完成我的组织工作，我就能更快。（与往后历史事实恰好相反）

4， If it rained tomorrow，I would/could/should stay at home 假如今晚下雪，我将会整天。

5， If it should rain tomorrow ，I would/could/should stay at home

6， If it were to rain tomorrow，I would/could/should stay at home

（与今后历史事实恰好相反）

7， Were it to rain tomorrow，I would/could/should stay at home 假如今晚下雪，我将整天

8， Had it rain yesterday，I would/could/should have stayed at home 假如昨晚下雪，我将整天

9， Should it rain tomorrow，I would/could/should stay at home 假如今晚下雪，我将整天。

10， If I were you ，I would have stayed at home yesterday 假如我是你，我昨晚就整天待着。(混和时态变化)

11， It is + 属格（指示，明确要求，提议，下定决心，提倡）that +主语（should+代词代之，should能略去）比如：insistent秉持的，adamant始终如一的，imperative必要性的，preferable更快的，compulsory必修课程的，vital 非常重要的 ，等等属格）

It is important that you（ should）study hard 你应该好好学习是多重要

12， 在宾语主语中，表示指示，明确要求，提议，提倡时也用时态变化，（常用代词有：propose提议，command指示，urge 催促 ，等代词），主语中的should 能略去

I advise that you （should ）study hard 我提议你应该好好学习

13，I wish I hadnt promised 我希望当初我没有许愿

14，I wish I had money 我祝愿那时就有钱

15，I wish it could /would/might rain tomorrow,我祝愿今晚下雪

16，would rather，would sooner，would （just）as soon， would prefer 宁愿

I would （just）as soon you were to Beijing 我宁愿你去北京。

17，在表示提议，指示，提倡，目的，计划和愿望的同位语主语中，要用时态变化，主语通常是should+代词代之，should 能略去

常有的名词有：preference，prosposal，motion等名词

My proposal is that we should study hard every day 我的提议就是我们应该每天勤奋学习

18，He talked about Beijing as if he had been there 他谈论北京感觉自己好像去过

19，He speaks as if he were a local man 他说话好像自己就是当地人一样

20，He opened his mouth as if he would say something他张开嘴好像他想要说什么

21， He started doing his homework lest he should be punished 他开始做他的作业，以防被惩罚

22，He ran away for fear that he should be seen 唯恐被人发现，他逃跑了

23，But for water= （if it were not for water），nothing should be survived 要是没有水，没有生物能存活。

24，Without you（if you hadnt been with me），I wouldnt have done my work 从前要是没有你，我就不能顺利完成我的组织工作了。

25，I could carry the box but I am so fat 我能搬动这个盒子，但是我太胖了

26，They would have resisted but that they lacked courage 要不是缺乏勇气，他们会抵抗的

27，Its high time that you should take your temperature 该你量体温的时候了。

28，If only I were you 要是我是你就好了。

29，If I had finished my work last week 要是我上周顺利完成了我的组织工作就好了。

30，He had a cold ，otherwise he would have been the party last night 他昨晚感冒了，否则他就会参加昨晚的聚会了。