过去时和过去的过去即过去完成时的区别是什么?就如概念或者举例?就如这道题.When I was at college,I____three foreign languages,but I___all except a few words of each.A.spoke,had forgotten B.spoke,have forgetten C.had spok

过去时和过去的过去即过去完成时的区别是什么?就如概念或者举例?就如这道题.When I was at college,I____three foreign languages,but I___all except a few words of each.A.spoke,had forgotten B.spoke,have forgetten C.had spok
过去时和过去的过去即过去完成时的区别是什么?就如概念或者举例?就如这道题.
When I was at college,I____three foreign languages,but I___all except a few words of each.
A.spoke,had forgotten B.spoke,have forgetten C.had spoken,had forgetten D.had spoken,have forgotten
不选D而选B.

过去时和过去的过去即过去完成时的区别是什么?就如概念或者举例?就如这道题.When I was at college,I____three foreign languages,but I___all except a few words of each.A.spoke,had forgotten B.spoke,have forgetten C.had spok
你好!
1你的疑问很到位.一般都会有注意的疑问.
2.首先,先告诉你两则的区别吧.
1）过去时,是已经发生的事情,一般在某些时间词或过去时的词语后面常常出现,比如ago.
2）过去完成时,表示过去动作已发生的事情,一些时间状语的词语后会出现,比如before,after.
3）根据题目,你可以发现,when引导的时间状语,前有was出现,可以判断已经过去了,可知第一个空为过去时态,但是要注意,后面出现一个转折词but,根据语境可知,后面是现在完成时,动作已经发生过,而且说话者是站在现在的角度而言.
这句话的意思为：在他上大学的那段时光,他学会了三种语言,但是,如今也已经忘记一些词汇了.
4）比如再举一个例子：
when he was young ,he often climbed the mountain alone,but he hasn't done that again.

看楼上朋友多热心。再不会再问吧

过去完成时表示在过去某一时间或动作之前已完成的动作或状态，时间发生在“过去的过去”；而一般过去时则表示过去的时间发生的动作或存在的状态。过去完成时是一种相对的时态，当强调过去某一动作发生在另一动作之前时，常用这一时态
A:
过去完成时

1） 概念：表示过去的过去
----|-------|-----|---->其构成是had +过去分词构...

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过去完成时表示在过去某一时间或动作之前已完成的动作或状态，时间发生在“过去的过去”；而一般过去时则表示过去的时间发生的动作或存在的状态。过去完成时是一种相对的时态，当强调过去某一动作发生在另一动作之前时，常用这一时态
A:
过去完成时

1） 概念：表示过去的过去
----|-------|-----|---->其构成是had +过去分词构成。
那时以前 那时 现在
2） 用法
a. 在told, said, knew, heard, thought等动词后的宾语从句。
She said (that) she had never been to Paris.
b. 状语从句
在过去不同时间发生的两个动作中，发生在先，用过去完成时；发生在后，用一般过去时。
When the police arrived, the thieves had run away.
c. 表示意向的动词，如hope, wish, expect, think, intend, mean, suppose等，用过去完成时表示"原本…，未能…"
We had hoped that you would come, but you didn't.
3) 过去完成时的时间状语before, by, until , when, after, once, as soon as。
He said that he had learned some English before.
By the time he was twelve, Edison had began to make a living by himself.
Tom was disappointed that most of the guests had left when he arrived at the party.
典型例题
The students ___ busily when Miss Brown went to get a book she ___ in the office.
A. had written, left B，were writing, has left C. had written, had left D. were writing, had left
答案D. "把书忘在办公室"发生在"去取书"这一过去的动作之前，因此"忘了书"这一动作发生在过去的过去，用过去完成时。句中when表示的是时间的一点，表示在"同学们正忙于……"这一背景下，when所引导的动作发生。因此
前一句应用过去进行时。
注意： had no … when 还没等…… 就……
had no sooner… than 刚…… 就……
He had no sooner bought the car than he sold it.
一般过去时的用法

1）在确定的过去时间里所发生的动作或存在的状态。
时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。
Where did you go just now?
2）表示在过去一段时间内，经常性或习惯性的动作。
When I was a child, I often played football in the street.
Whenever the Browns went during their visit, they were given a warm welcome.
3）句型：
It is time for sb. to do sth "到……时间了" "该……了"
It is time sb. did sth. "时间已迟了" "早该……了"
It is time for you to go to bed. 你该睡觉了。
It is time you went to bed. 你早该睡觉了。
would (had) rather sb. did sth. 表示'宁愿某人做某事'
I'd rather you came tomorrow.
4) wish, wonder, think, hope 等用过去时，作试探性的询问、请求、建议等。
I thought you might have some. 我以为你想要一些。
比较：
一般过去时表示的动作或状态都已成为过去，现已不复存在。
Christine was an invalid all her life.
(含义：她已不在人间。)
Christine has been an invalid all her life.
(含义：她现在还活着)
Mrs. Darby lived in Kentucky for seven years.
(含义：达比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.
( 含义：现在还住在肯塔基州，有可能指刚离去)

注意： 用过去时表示现在，表示委婉语气。
1）动词want, hope, wonder, think, intend 等。
Did you want anything else?
I wondered if you could help me.
2）情态动词 could, would.
Could you lend me your bike?
你的这道题中have forgotten表示已经忘记强调对现在的影响，而学外语发生在have forgotten之前也就是过去的过去，故用过去完成时不用一般过去式

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