时态是极具英语特色的一种动词形态，过去发生的动作要用过去时态，将来发生的动词要用将来时态，正在进行的动作要用进行时态，等等。下面是小编收集整理的英语时态单项选择题及答案，大家一起来看看吧!
英语时态单项选择题及答案:
1、(福建卷) and gentlemen, please fasten your seat belts. The plane________.
A. takes off B. is taking off C. has taken off D. took off
2、(福建卷) moment the 28th Olympic Games _______ open, the whole world cheered.
A. declared B. have been declared C. have declared D. were declared
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3、(福建卷) workers will go on strike if the demands they _______ put forward are turned down.(+情态动词)
A. could B would C.不填 D. had
4、(湖北卷)32. I won't tell the student the answer to the math problem until he ____on it for more than an hour.
A. has been working B. will have worked
C. will have been working D. had worked
5、(湖南卷) was giving a talk to a large group of people, the same talk I ________to half a dozen other groups.
A. was giving B. am giving C. had given D. have given
答案:BDCAC
过去完成时的用法:
(1)过去完成时用在hardly / scarcely…when…和no sooner…than 固定结构中。如:
No sooner was the frost off the ground than the work began. 地上的霜一消散，人们就开始工作了。
Hardly had he arrived when she started complaining. 他刚一到, 她就开始抱怨起来。
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(2) 过去完成时用于条件分句或wish / would rather等后面的that从句中，表示与过去事实相反的主观愿望。如:
I would have met him, if I had come this morning. 今天早晨我来的话，就会见到他了。
I wish I had seen you yesterday. 我昨天见到你多好。
He would rather she had lent him more money than she did.他本希望她借给他的钱更多些。
before long 可以连用的时态:
有时在特定语境中也可以连用完成时(如将来完成时、过去完成时等)。如:
I knew she would arrive before long. 我当时就知道她很快就会到的。
Before long they had signed with Virgin. 他们不久就和维珍唱片公司签了约。
Before long a large crowd had gathered outside the building. 不久大楼外面就聚集了一大群人。
Before long, he will have forgotten all about the matter. 过不久，他很快就会把这件事全然忘记的。
有时 before long 不是修饰谓语动词，而是修饰非谓语动词的，此时完全可以根据需要来确定谓语时态:
I hope to write to you before long. 我希望不久就能给你写信。
将来完成时的用法:
表示到将来某个时间为止势必会完成或预计要完成的动作。如:
Maybe by then you will have changed your mind. 也许到时候你已经改变主意了。
“You’ll have finished by tomorrow.” “I wish!” “你到明天就完成了。”“但愿如此! ”
I hope I’ll have finished the work by the end of the month. 我希望我这个月底能完成工作。
Demand for cars in the developed world will have reached saturation point within 20 years. 不出20年，已发展国家的汽车需求将达到饱和。
Planning so far ahead makes no sense—so many things will have changed by next year. 提前这么久就计划并不明智——到明年，许多事情都会发生变化。
