Then ask the students to do the exercises ,

1) 表示与现在事实相反的假设和结果

Eg. If I _ __you , ,I_______ him the truth.(be /ell )

如果我是你,我就会/可能对他说实话.

If he _____time , he _________with you ( have / go )

如果他有时间,他就会/可能和你一起去.

If my brother _____here , everything _________all right (be / be)

要是我哥哥在这儿,一切都没问题了.

2) 表示与过去事实相反的假设和结果

Eg.If you________my advice, you______________in the exam, (take /not fail)

如果你按照我的建议去做,你不会/不可能考试不及格.

If I_________the money last week ,I _________the car .(have / buy )

如果我上星期有了这笔钱,我就会/可能买辆车.

She _________you immadiately ,if she _________-the game .(telephone /win)

如果她比赛赢了,她就会/可能给你打电话.

If you ______here several minutes earlier,you_____the famous singer .( come /meet )

如果你早来几分钟的话,你就会/可能会见到那个著名的歌唱家.

3) 表示与将来事实可能相反的假设和结果

Eg. If it ____Sunday tomorrow ,I_____-my grandmother.(be / visit)