现在完成和过去式
来源:学生作业帮 编辑:搜搜考试网作业帮 分类:英语作业 时间:2024/08/18 02:41:50
--Have you ever been to Shanghai, Mary? --Yes, I _____there for three days with my parents last month. A have gone B have been C went D was 选哪个?为什么?
![现在完成和过去式](/uploads/image/z/6336354-66-4.jpg?t=%E7%8E%B0%E5%9C%A8%E5%AE%8C%E6%88%90%E5%92%8C%E8%BF%87%E5%8E%BB%E5%BC%8F)
解题思路: ruxia
解题过程:
--Have you ever been to Shanghai, Mary? --Yes, I _____there for three days with my parents last month. A have gone B have been C went D was 答案:C.题意是mary,你去过上海吗?是的,上个月和父母去了三天。 一般过去时表示(1)过去某个特定时间发生,并且一下子就完成了的动作(即:非持续性动作),也可以表示(2)过去习惯性的动作。一般过去时不强调动作对现在的影响,只说明过去。
I had a word with Julia this morning.今天早晨,我跟朱丽亚说了几句话。(1)
He smoked many cigarettes a day until he gave up. 他没有戒烟的那阵子,烟抽抽得可凶了。(2)
一般过去时常与表示过去的时间状语或从句连用,如:yesterday, last week, in 1993, at that time, once, during the war, before, a few days ago, when 等等。
句子中谓语动词是用一般过去时还是用现在完成时,取决于动作是否对现在有影响。
Have you had your lunch? 你吃过午饭了吗?(意思是说你现在不饿吗?)
Yes, I have. 是的,我已经吃过了。(意思是说已经吃饱了,不想再吃了。)
When did you have it? 你是什么时候吃的?(关心的是吃的动作发生在何时。)
I had it about ten minutes ago. 我是大约十分钟以前吃的。
Used to do something表示过去常做而现在已经停止了的习惯动作。
I used to work fourteen hours a day. 我过去常常一天干十四个小时。
一般过去时的基本用法
1 带有确定的过去时间状语时,要用过去时
如:yesterday(昨天)、two days ago…(两天前…… )、last year…(去年…)、the other day(前几天)、once up on a time(过去曾经)、 just now(刚才)、in the old days(过去的日子里)、before liberation(解放前…)、 When I was 8 years old(当我八岁时…)
Did you have a party the other day?
前几天,你们开了晚会了吗?
Lei Feng was a good soldier.
雷锋是个好战士。
注意
在谈到已死去的人的情况时,多用过去时。
2 表示过去连续发生的动作时,要用过去时
这种情况下,往往没有表示过去的时间状语,而通过上下文来表示。
The boy opened his eyes for a moment,looked at the captain,and then died.
那男孩把眼睛张开了一会儿,看看船长,然后就去世了。
3 表示过去一段时间内经常或反复的动作
常与always,never等连用。
Mrs. Peter always carried an umbrella.
彼得太太过去老是带着一把伞。
(只是说明她过去的动作,不表明她现在是否常带着伞。)
比较
Mrs. Peter always carries an umbrella.
彼得太太老是带着伞。
(说明这是她的习惯,表明她现在仍然还习惯总带着一把伞)
I never drank wine.我以前从不喝酒。
(不涉及到现在,不说明现在是否喝酒)
4 如果强调已经终止的习惯时要用used to do
He used to drink.
他过去喝酒。
(意味着他现在不喝酒了。喝酒这个动作终止了)
I used to take a walk in the morning.
我过去是在早晨散步。
(意味着现在不在早晨散步了)
比较:
I took a walk in the morning.
我曾经在早晨散过步。
(只是说明过去这一动作)
5 有些句子,虽然没有表示过去确定时间的状语,但实际上是指过去发生的动作或存在的状态的话,也要用过去时,这一点,我们中国学生往往出错,要特别注意!
I didn''t know you were in Paris.
我不知道你在巴黎。
(因为在说话时,我已经知道你在巴黎了。这句话指的是说话之前,所以只能用过去时表示。实际上,这句话暗指:But now I know you are here.)
I thought you were ill.
我以为你病了呢。
(这句话应是在说话之前,我以为你病了。但是现在我知道你没病)
辨别正误
Li Ming studied English this morning.
(把此句变为一般疑问句)
(×)1.Did Li Ming studied English this morning?
(动词应该用原形)
(×) 2. Does Li ming Study English this morning?
(时态应该用原句子的时态)
(×) 3.Was Li Ming studied English this morning?
(应该用一般动词,而不是be动词)
(О) 4.Did Li Ming study Enghish this morning?
一过:在过去发生的动作。
主动:
肯定① be 分为was,were ② v+ed
否定① was/were not ② didn’t+v
疑问① was/were+ 主 ② did+主+V
时状:
1. in 1990
2. last year
3. just now
4. in a moment ago
5.later that day
6.the following day
7.the next day
……(未完待续)
动词过去时规则变化
1 直接加ed
2 以不发音的e结尾的,+d
3 以辅音字母+y结尾的,变y为i加ed
4 以重读闭音节结尾的,双写最后的辅音字母+ed
不规则变化
例如相等 eg:cut cut
read read<注:read和read读音不同!>
sit sat
——————————————————————————
句型结构
1.一般句子
I watched TV last night.
2.一般疑问句
Did you watch TV last night?
3.there be 句型
There was an appleon the table last night.
Was there an appleon the table last night?
现在完成时是英文时态的一种
现在完成时的用法
主语+have(has)+过去分词(done)
1.现在完成时用来表示现在之前已发生过或完成的动作或状态,但其结果却和现在有联系,也就是说,动作或状态发生在过去但它的影响现在还存在.
I have lost my wallet.(含义是:现在我没有钱花了.)
Jane has laid the table.(含义是:简已在吃饭.)
Michael has been ill.(含义是:现在仍然很虚弱)
He has returned from abroad. (含义是:现在已在此地)
2. 现在完成时可以用来表示发生在过去某一时刻的,持续到现在的情况,常与for,since连用.
Mary has been ill for three days.
I have lived here since 1998.
3. 现在完成时往往同表示不确定的过去时间状语连用,如already, yet, just, before, recently,still, lately等:
He has already obtained a scholarship.
I haven't seen much of him recently (lately).
We have seen that film before.
Have they found the missing child yet
4. 现在完成时常常与表示频度的时间状语连用,如often, sometimes, ever, never, twice, on several occasion等:
Have you ever been to Beijing
I have never heard Bunny say anything against her.
I have used this pen only three times. It is still good.
George has met that gentleman on several occasions.
5. 现在完成时还往往可以同包括现在时间在内的时间状语连用,如now, up to these few days/weeks/months/years, this morning/week/month/year, now, just, today, up to present, so far等:
Peter has written six papers so far.
Man has now learned to release energy from the nucleusof the atom.
There has bee too much rain in San Franciscothis year.
The friendly relations and cooperation between our two countries have been enhanced in the past few years.
Up to the present everything has been successful.
6. 现在完成时表示现在之前业已完成的动作,虽然其效果或影响仍然存在但已不再继续,但是有一些现在完成时的句子,在后面加上for+一段时间,则现在完成时的动作就表示延续性.
Thomas has studied Russian. (现在不再学俄语)
Thomas has studied Russian for three years. (=Thomas began to study Russian three years ago, and is still studying it now.(同第2点用法第一个例句)
7. 现在完成时还可以用来表示过去的一个时间到现在这段时间内重复发生的动作.
We have had four texts this semester.
===================
现在完成时的“完成用法”和“未完成用法”
1.现在完成时的"完成用法"
现在完成时的"完成用法"指的是动作发生在过去某一时刻并已结束,但该动作对现在产生了影响,与现在情况具有因果关系。
例如:He has turned off the light.他已把灯关了。(动作结束于过去,但说明的是现在的情况--灯现在不亮了。)
现在完成时"完成用法"的特点是动作不延续,因此,该时态只能与表示不定的过去时间状语(如:already,yet,before,recently等)、频度时间状语(如:never,ever,once等)、包括现在时刻在内的时间状语(如:this morning / month /year...,today等)连用。
例如: Have you found your pen yet?你已找到你的钢笔了吗?
2.现在完成时的"未完成用法"
现在完成时的"未完成用法"指的是动作开始于过去某一时刻,一直延续到现在,或可能还要继续下去。
例如:He has lived here since 1978.自从1978年以来,他一直住在这儿。(动作起始于1978年,一直住到现在,可能还要继续住下去。)
I have been in the army for more than 5 years.我在部队已经呆了五年多了。(动作开始于5年前,一直延续至今,有可能还要继续下去。)
此种用法的句中常需一个表示一段时间的状语(由since或for引导),或表示与现在时刻相连的时间状语(如:up to now,so far)等。
例如:I have heard nothing from him up to now.到目前为止我没有他的任何消息。
注意:(1)现在完成时的未完成用法只适用于延续性动词,不可用于终止性动词,即瞬间完成或延续时间很短的动词。如:come,go,arrive,leave,join,become,die等。
(2)现在完成时常见两种句型:
①for短语
②It is+一段时间+ since从句
3.一段时间+has passed+since从句
4.主语+have / has been+since短语
例如:He has been in the League for three years.或It is three years since he joined the League. 他入团已三年了
一.have/has been doing sth.
1.现在完成进行时
当后面接有一段时间的词时,或是加表示时间的词时,可以用现在完成时.如果这件事现在还在持续或还在做,则可用
现在完成进行时.
如:I have been skating for 4 hours.
I have finished my homework.
2.现在完成时的被动语态.
后接动词的过去分词.
如:The building has been built for 5 years.
最终答案:略
解题过程:
--Have you ever been to Shanghai, Mary? --Yes, I _____there for three days with my parents last month. A have gone B have been C went D was 答案:C.题意是mary,你去过上海吗?是的,上个月和父母去了三天。 一般过去时表示(1)过去某个特定时间发生,并且一下子就完成了的动作(即:非持续性动作),也可以表示(2)过去习惯性的动作。一般过去时不强调动作对现在的影响,只说明过去。
I had a word with Julia this morning.今天早晨,我跟朱丽亚说了几句话。(1)
He smoked many cigarettes a day until he gave up. 他没有戒烟的那阵子,烟抽抽得可凶了。(2)
一般过去时常与表示过去的时间状语或从句连用,如:yesterday, last week, in 1993, at that time, once, during the war, before, a few days ago, when 等等。
句子中谓语动词是用一般过去时还是用现在完成时,取决于动作是否对现在有影响。
Have you had your lunch? 你吃过午饭了吗?(意思是说你现在不饿吗?)
Yes, I have. 是的,我已经吃过了。(意思是说已经吃饱了,不想再吃了。)
When did you have it? 你是什么时候吃的?(关心的是吃的动作发生在何时。)
I had it about ten minutes ago. 我是大约十分钟以前吃的。
Used to do something表示过去常做而现在已经停止了的习惯动作。
I used to work fourteen hours a day. 我过去常常一天干十四个小时。
一般过去时的基本用法
1 带有确定的过去时间状语时,要用过去时
如:yesterday(昨天)、two days ago…(两天前…… )、last year…(去年…)、the other day(前几天)、once up on a time(过去曾经)、 just now(刚才)、in the old days(过去的日子里)、before liberation(解放前…)、 When I was 8 years old(当我八岁时…)
Did you have a party the other day?
前几天,你们开了晚会了吗?
Lei Feng was a good soldier.
雷锋是个好战士。
注意
在谈到已死去的人的情况时,多用过去时。
2 表示过去连续发生的动作时,要用过去时
这种情况下,往往没有表示过去的时间状语,而通过上下文来表示。
The boy opened his eyes for a moment,looked at the captain,and then died.
那男孩把眼睛张开了一会儿,看看船长,然后就去世了。
3 表示过去一段时间内经常或反复的动作
常与always,never等连用。
Mrs. Peter always carried an umbrella.
彼得太太过去老是带着一把伞。
(只是说明她过去的动作,不表明她现在是否常带着伞。)
比较
Mrs. Peter always carries an umbrella.
彼得太太老是带着伞。
(说明这是她的习惯,表明她现在仍然还习惯总带着一把伞)
I never drank wine.我以前从不喝酒。
(不涉及到现在,不说明现在是否喝酒)
4 如果强调已经终止的习惯时要用used to do
He used to drink.
他过去喝酒。
(意味着他现在不喝酒了。喝酒这个动作终止了)
I used to take a walk in the morning.
我过去是在早晨散步。
(意味着现在不在早晨散步了)
比较:
I took a walk in the morning.
我曾经在早晨散过步。
(只是说明过去这一动作)
5 有些句子,虽然没有表示过去确定时间的状语,但实际上是指过去发生的动作或存在的状态的话,也要用过去时,这一点,我们中国学生往往出错,要特别注意!
I didn''t know you were in Paris.
我不知道你在巴黎。
(因为在说话时,我已经知道你在巴黎了。这句话指的是说话之前,所以只能用过去时表示。实际上,这句话暗指:But now I know you are here.)
I thought you were ill.
我以为你病了呢。
(这句话应是在说话之前,我以为你病了。但是现在我知道你没病)
辨别正误
Li Ming studied English this morning.
(把此句变为一般疑问句)
(×)1.Did Li Ming studied English this morning?
(动词应该用原形)
(×) 2. Does Li ming Study English this morning?
(时态应该用原句子的时态)
(×) 3.Was Li Ming studied English this morning?
(应该用一般动词,而不是be动词)
(О) 4.Did Li Ming study Enghish this morning?
一过:在过去发生的动作。
主动:
肯定① be 分为was,were ② v+ed
否定① was/were not ② didn’t+v
疑问① was/were+ 主 ② did+主+V
时状:
1. in 1990
2. last year
3. just now
4. in a moment ago
5.later that day
6.the following day
7.the next day
……(未完待续)
动词过去时规则变化
1 直接加ed
2 以不发音的e结尾的,+d
3 以辅音字母+y结尾的,变y为i加ed
4 以重读闭音节结尾的,双写最后的辅音字母+ed
不规则变化
例如相等 eg:cut cut
read read<注:read和read读音不同!>
sit sat
——————————————————————————
句型结构
1.一般句子
I watched TV last night.
2.一般疑问句
Did you watch TV last night?
3.there be 句型
There was an appleon the table last night.
Was there an appleon the table last night?
现在完成时是英文时态的一种
现在完成时的用法
主语+have(has)+过去分词(done)
1.现在完成时用来表示现在之前已发生过或完成的动作或状态,但其结果却和现在有联系,也就是说,动作或状态发生在过去但它的影响现在还存在.
I have lost my wallet.(含义是:现在我没有钱花了.)
Jane has laid the table.(含义是:简已在吃饭.)
Michael has been ill.(含义是:现在仍然很虚弱)
He has returned from abroad. (含义是:现在已在此地)
2. 现在完成时可以用来表示发生在过去某一时刻的,持续到现在的情况,常与for,since连用.
Mary has been ill for three days.
I have lived here since 1998.
3. 现在完成时往往同表示不确定的过去时间状语连用,如already, yet, just, before, recently,still, lately等:
He has already obtained a scholarship.
I haven't seen much of him recently (lately).
We have seen that film before.
Have they found the missing child yet
4. 现在完成时常常与表示频度的时间状语连用,如often, sometimes, ever, never, twice, on several occasion等:
Have you ever been to Beijing
I have never heard Bunny say anything against her.
I have used this pen only three times. It is still good.
George has met that gentleman on several occasions.
5. 现在完成时还往往可以同包括现在时间在内的时间状语连用,如now, up to these few days/weeks/months/years, this morning/week/month/year, now, just, today, up to present, so far等:
Peter has written six papers so far.
Man has now learned to release energy from the nucleusof the atom.
There has bee too much rain in San Franciscothis year.
The friendly relations and cooperation between our two countries have been enhanced in the past few years.
Up to the present everything has been successful.
6. 现在完成时表示现在之前业已完成的动作,虽然其效果或影响仍然存在但已不再继续,但是有一些现在完成时的句子,在后面加上for+一段时间,则现在完成时的动作就表示延续性.
Thomas has studied Russian. (现在不再学俄语)
Thomas has studied Russian for three years. (=Thomas began to study Russian three years ago, and is still studying it now.(同第2点用法第一个例句)
7. 现在完成时还可以用来表示过去的一个时间到现在这段时间内重复发生的动作.
We have had four texts this semester.
===================
现在完成时的“完成用法”和“未完成用法”
1.现在完成时的"完成用法"
现在完成时的"完成用法"指的是动作发生在过去某一时刻并已结束,但该动作对现在产生了影响,与现在情况具有因果关系。
例如:He has turned off the light.他已把灯关了。(动作结束于过去,但说明的是现在的情况--灯现在不亮了。)
现在完成时"完成用法"的特点是动作不延续,因此,该时态只能与表示不定的过去时间状语(如:already,yet,before,recently等)、频度时间状语(如:never,ever,once等)、包括现在时刻在内的时间状语(如:this morning / month /year...,today等)连用。
例如: Have you found your pen yet?你已找到你的钢笔了吗?
2.现在完成时的"未完成用法"
现在完成时的"未完成用法"指的是动作开始于过去某一时刻,一直延续到现在,或可能还要继续下去。
例如:He has lived here since 1978.自从1978年以来,他一直住在这儿。(动作起始于1978年,一直住到现在,可能还要继续住下去。)
I have been in the army for more than 5 years.我在部队已经呆了五年多了。(动作开始于5年前,一直延续至今,有可能还要继续下去。)
此种用法的句中常需一个表示一段时间的状语(由since或for引导),或表示与现在时刻相连的时间状语(如:up to now,so far)等。
例如:I have heard nothing from him up to now.到目前为止我没有他的任何消息。
注意:(1)现在完成时的未完成用法只适用于延续性动词,不可用于终止性动词,即瞬间完成或延续时间很短的动词。如:come,go,arrive,leave,join,become,die等。
(2)现在完成时常见两种句型:
①for短语
②It is+一段时间+ since从句
3.一段时间+has passed+since从句
4.主语+have / has been+since短语
例如:He has been in the League for three years.或It is three years since he joined the League. 他入团已三年了
一.have/has been doing sth.
1.现在完成进行时
当后面接有一段时间的词时,或是加表示时间的词时,可以用现在完成时.如果这件事现在还在持续或还在做,则可用
现在完成进行时.
如:I have been skating for 4 hours.
I have finished my homework.
2.现在完成时的被动语态.
后接动词的过去分词.
如:The building has been built for 5 years.
最终答案:略