文档介绍：***学士学位英语考试复****资 料-（自动保存的）
★现在完成进行时(have been doing)
例 6： It seems oil D from this pipe for some time. Well have
to take the machine apart to put it right.
A. had leaked B. is leaking C. leaked D. has been leaking
★过去完成进行时(had been doing)
★ 将来完成进行时(will have been doing )
例 7 ： By the time you arrive this evening, —D for two hours.
A. I will study B. I will have been studied
C. I had studied D. I will have been studying.
在时间和条件状语从句中不用将来时态 “’
▲用一般现在时代替一般将来时散发出
例 1 ： When the mixture C_, it will give off a powerful
A. will heat 混合物 B. will be heated C. is heated D. has heated
例 2： please be sure to telephone me the next time you _D・
A. will come B. would come C. shall come D. come
▲用现在完成时代替将来完成时
例 3： Smith is to study medicine as soon as he B military service.
-医学、药物 军事
A. will finish B. has finished C. finish D. would finish 注意：
例 4： No one can be sure if the car on display fits him or her until he or
she_D them. 展出 适合
A. tries B. will try C. are trying D. has tried
考试小窍门
♦考试中如果遇到与完成时态相关的选项，要重点加以研读，一般说来是正 确答案。
一、时态和语态
如何解答时态问题
例 1： You' ve already missed too many classes this term. You _A just
last week.
A. missed B. would miss C. had missed D. have missed
例 2： Anne asked Tom B the key.
A. when he left B. where he had left C. how he left D. why did he left
考试重点：
与完成时有关的时态
★现在完成时 (have done) since, for/ in the past few months, up to now 例 1 ： Collecting toy cars as a hobby becomes increasingly popular during the past fifty years. A
B C D
例 2： English A in a new way at my college in the past few years.
A. has been taught B. was being taught
C. has been taught D. had been taught.
★过去完成时(had done)
例 3： Anne asked Tom _B the key.
A. when he left B. where he had left C. how he left D. why did he left
*例 4： The chemistry class—A* for five minutes when we hurried
there.
A. had been on B. had begun C. has been on D.
would began
★将来完成时(will have done) by
例 5： We' re late I expect the by the time we get to the cinema.
A. h