整理时态
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/08/26 05:08:06
一般现在时的意义、结构、标志词、例句 一般过去式的意义、结构、标志词、例句 现在完成时的意义、结构、标志词、例句
解题思路: 平时注意在课堂上做笔记,课下进行整理复习。
解题过程:
Ⅰ、 一般现在时
1、意义:1)表示经常性或习惯性的动作,常与表示频度的时间状语连用。
标志词:always, usually, often, sometimes, seldom, never, every day, twice a week, on Sunday,
例:I leave home for school at 7 every morning.
2) 客观真理,客观存在,科学事实。
例:The earth moves around the sun. 地球绕太阳转动。
Shanghai lies in the east of China. 上海位于中国东部。
3) 格言或警句。例:Pride goes before a fall. 骄者必败。
注意:宾语从句中,即使主句是过去时,从句谓语是客观真理也要用一般现在时。
例:Columbus proved that the earth is round. 哥伦布证实了地球是圆的。
2、结构:表状态 S+ am/is/are+ P (句中有实义动词不用be)
表动作 S+V原+O (若主语是单三人称,谓动加s/es。)
Ⅱ、 一般过去时
1、 意义:1)表示在确定的过去时间里所发生的动作或存在的状态。
标志词:yesterday, the day before yesterday, last week, just now, an hour ago, the other day, in 1982. at the age of 5, one day, long long ago, etc.
例: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。
例:When I was a child, I often played football in the street.
2、结构:表状态 S+ was/were+ P
表动作 S+V过去式+O (注:句中有实义动词不用be)
III、 现在完成时:
1. 意义:①过去发生或已经完成的动作对现在造成的影响或结果。
标志词:ever, never, already, yet, before, just, recently/ lately(最近), in the past few years
2. ②或从过去已经开始持续到现在的动作或状态。
标志词:for + 时间段,since +过去时间点/从句。(提问用How long)
例:The countryside has changed a lot in the past few years.
He has learned French for two years.
2.结构:S + have/has + done
解题过程:
Ⅰ、 一般现在时
1、意义:1)表示经常性或习惯性的动作,常与表示频度的时间状语连用。
标志词:always, usually, often, sometimes, seldom, never, every day, twice a week, on Sunday,
例:I leave home for school at 7 every morning.
2) 客观真理,客观存在,科学事实。
例:The earth moves around the sun. 地球绕太阳转动。
Shanghai lies in the east of China. 上海位于中国东部。
3) 格言或警句。例:Pride goes before a fall. 骄者必败。
注意:宾语从句中,即使主句是过去时,从句谓语是客观真理也要用一般现在时。
例:Columbus proved that the earth is round. 哥伦布证实了地球是圆的。
2、结构:表状态 S+ am/is/are+ P (句中有实义动词不用be)
表动作 S+V原+O (若主语是单三人称,谓动加s/es。)
Ⅱ、 一般过去时
1、 意义:1)表示在确定的过去时间里所发生的动作或存在的状态。
标志词:yesterday, the day before yesterday, last week, just now, an hour ago, the other day, in 1982. at the age of 5, one day, long long ago, etc.
例: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。
例:When I was a child, I often played football in the street.
2、结构:表状态 S+ was/were+ P
表动作 S+V过去式+O (注:句中有实义动词不用be)
III、 现在完成时:
1. 意义:①过去发生或已经完成的动作对现在造成的影响或结果。
标志词:ever, never, already, yet, before, just, recently/ lately(最近), in the past few years
2. ②或从过去已经开始持续到现在的动作或状态。
标志词:for + 时间段,since +过去时间点/从句。(提问用How long)
例:The countryside has changed a lot in the past few years.
He has learned French for two years.
2.结构:S + have/has + done