英语语法: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,过去完成时。
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,英语语法《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.
-
使用代词one的注意事项
导语:英语单词one虽然含义上只表示小小的一,但它在语法上却有大大的用处,下面YJBYS小编讲解使用代词one的注意事项,欢迎参考!一、基本用法归纳1.用于泛指人们或任何人,包括说话人和听话人,其用法与表泛指的you相似。如:Onemustbelieveinsomething.人一定要有信仰。One...
-
初一英语语法参考
定语从句:(一)基础:引导词---who,which,that,whom,练习1.Ilikecities___________arequietandclean.2.Ipreferstudents_________arehard-working.3.IhateTVshows_________arenoisyandmusic__________isgentleandquietattractsmealot.food__________tastesdeliciousi...
-
关于二年级英语单元基础知识点
上学的时候,说到知识点,大家是不是都习惯性的重视?知识点在教育实践中,是指对某一个知识的泛称。为了帮助大家掌握重要知识点,以下是小编为大家收集的关于二年级英语单元基础知识点,欢迎阅读与收藏。关于二年级英语单元基础知识点11、Whatcanyoudo?Icansing.2、Whati...
-
简短的伊索寓言中英阅读
伊索寓言短小精悍,比喻恰当,形象生动,对法国的拉封丹、德国的莱辛、俄国的克雷洛夫都产生了明显的影响。下面是小编分享的几篇伊索寓言,欢迎大家阅读!TheHerdsmanandtheLostBull牧人和丢失的牛AHERDSMANtendinghisflockinaforestlostaBull-calffromthefold.Afteral...