通过高考题精讲 过去将来时

过去将来时已过去为起点，向现在发展，但不到现在，过去将要发生的动作。常见于主句是一般过去时宾语从句中。还可以在虚拟语气中运用。

常用would/should + do

或者变体： was/were going to was/were to was/were about to

过去的动作 过去将来 现在 (2011上海)34.

Did you predict that many students ______ up for the dance competition? A. would sign

B. signed

C. have signed

解析：本题选择A.

D. had signed

根据主句用的一般过去时和predict，所以sign应该用过去将来时。

20. Albert Einstein was born in 1879. As a child, few people guessed that he a famous scientist whose theories would change the world. （浙江卷）

A. has been B. had been C. was going to be D. was

解析：本题选择C.

根据上文爱因斯坦小时候was born，a child, guessed宾语从句中著名科学家应该是后来的事情，而且定语从句也有提示whose theories would change the world。

(2009湖南) 23．When he the door, he found his keys were nowhere.

A. would open B. opened C. had opened D. was to open

解析：本题选择D.

时间状语从句中，A要用一般过去时代替过去将来时；

B项说明已打开门，与下文矛盾；

C项说明正准备开门，表将来，但主句发现钥匙找不到了。