after since when 用法
Yo(c) tomorrow, or the day after...usince Iwent翻译为 我三年没有见过他了,since的意思就是自从 when一般时间状语从句,after是“...之后”的意思
after用法 after用法总结
after用法 after用法总结
after用法 after用法总结
自从我上次看到他以来已是三年了
since . since 有自从的意思
before ,after, 的从句 用什么时态
fourbefore的从句的时态比主句早一个时态,after的从句时态比主句晚一个时态。
roar.一、after意思是“在……之后”。常见用法如下:
2. . was (just) about to do...when (suddenly)...表示某人刚要开始做某事,(突然)另一件事发生了。1、遵循“主将从现”原则。如:
He will go to Beijing to work after he graduates from the university .他大学毕业后将去工作。
2、从句表示的动作发生在主句动作之前 ,如果强调从句的动作发生在前, 从句谓语要用过去完成时 ,主句用一般过去时 。如:
He went out for a walk after he had finished the work .他完成这项工作后他出去散步。
3、从句表示的动作发生在主句动作之前,如不强调动作的先后, 主句和从句均用一般过去时。如:
He went to bed after he finished his homework last night .昨晚他完成作业后上床睡觉。
二 、before意思是“在……之前”。常见用法如下:
1、遵循“主将从现”原则。如:
It won't be long before we meet again .不久我们就会再见面 。
2、从句表示的动作 发生在主句动作之后 ,如果强调主句的动作发生在前,主句谓语要用过去完成时。如:
He had worked for three years before he joined the army .他参军之前工作了三年。
3、 before 的从句用一般过去时 如不强调动作的先后 主句和从句 均用一般过去时 。如 :
She worked in Beijing before she came here.她来这里之前在工作。
1、主句是一般现在时,从句时态不变。
He says (that) he will lee a message on my desk.他说他将在我桌上留言。
They know (that) he is working hard.他们知道他在努力工作。
2、主句是一般过去时,从句为各种相应过去时态。
3、主句是一般将来时,一般从句为一般现在时(“主将从现”)。
4、 当从句所叙述的事实为一个定理或客观存在时,无论主句是什么时态,从句均用一般现在时。但与人有关的均不是定理。
He told me that he was a boy. (虽然性别是客观存在的,但“男”“女”也是人为定义的,故非第4种情况)他告诉我他是个男孩。
Father told me that pract makes perfect. (所叙述的事实为一个定理,用一般现在时)父亲告诉我,熟能生巧。
after接句子省略谓语的用法
直到她回来我才开始看电视。首先简要介绍一下after的用法:
agreat1、做连词,后边直接跟一个句子
2、作介词:后面直接跟名词 af终究ter school 放学后
后面跟动名词就是doing soming. 你说的after hearing ....就是这用法
3、作副词,表示后来。
有时以连词 after 的时间状语从句可以换成一个以介词after 介词短语或以连词 after 的分词短语,而意义不变。楼主提到问题应该就是这个用法。例如:
He went to bed after he had supper (=after supper). 吃了晚饭之后,他就上床睡觉了。
after did sth.和after doing sth.有什么区别?
He ran beforeafter the bus.他在那辆公交车后追着跑。没有直接after did sth用法。应该是after did sth 吧。这个后面是一个句子。
He answered that he was listening to me.他回答说他在听我说话。after doing sth。是直接接一个动名词。
两者意思一样。
没有前者,只有后者。
很高兴为你解答!
老师祝你学习进步!
请及时采纳哦!多谢你的问题!^_^
词汇精选:after的用法和辨析
inbefore的用法:一、详细释义: , adj. , 后来的,以后的 , 例句: ,He grew weak in after years.,在以后的几年里,他变得衰弱了。, 例句: ,His health was declining in after years.,在以后的岁月,他的健康不断衰退。, a. , 后来,继后,以后 , 例句: ,The day after, she agreed.,一天之后,她同意了。, 例句: ,They became good friends r after.,从那以后,他们变成了很好的朋友。, 在后面 , 例句: ,You walk before and I will follow after.,你在前面走,我将在后面跟着., 例句: ,We arrived soon after.,我们随后就到。, conj. , 在...之后 , 例句: ,Nobody is r humble enough to learn after he's grown up.,任何人在成年以后,都不会那么虚心学习了。, 例句: ,After they had parted in discord, he stood alone outside his gate.,大伙不欢而散以后,他一个人孤零零地站在门外。, prep. , 在...之后 , 例句: ,Stacks of hay were in the field after the harvest.,收获以后,一堆堆干草堆在田里。, 例句: ,After many months at sea, Columbus sighted land.,在海上许多月以后,发现了陆地。, 朝着 , 例句: ,'Come back!' he called after me.,”回来!”他朝我喊道。, 例句: ,Claire stared after him until he disappeared around a corner.,克莱尔一直注视着他,直到他消失在拐角。, 仅次于,低于 , 例句: ,A colonel es after a general.,上校的地位低于将军的地位。, 例句: ,After the floods the harvests were subnormal.,洪水发生后庄稼收成低于正常水平。, 因为,由于,鉴于,考虑到 , 例句: ,She succeeded in solving the problem after hard work.,由于努力干,她终于解决了那个问题。, 例句: ,She got up, suddenly chilled after sitting so long.,她站了起来,由于坐的时间太长,她突然感到一阵寒意。, 为,替 , 例句: ,She used to mess up the floor and I had to clean up after her.,她过去常常把地板弄得很乱,而我不得不为她清理干净。, 仿照,仿效 , 例句: ,Look at the pictures and make sentences after the model.,仿照例子造句。, 例句: ,Rewrite the following sentences after the model.,仿照例子重写句子。, 依照,按照 , 例句: ,He was named after his uncle.,他是依照叔父的名来命名的。, 例句: ,The Wild Goose Pagoda that greets us today was acturally modeled after its Indian prototype.,大雁塔就是玄奘依照印度那座“雁塔”的形式设计建造的。, 尽管,不管,不顾 , 例句: ,After all warnings, he persisted.,尽管有各方,他仍坚持到底。, 例句: ,The holiday itself was rather an anticlimax after all the excent of planning it.,尽管度时兴致勃勃,而到头来日本身却颇为扫。, 追求;搜寻 , 例句: ,The pol ran after the thief.,警察正在追赶小偷。, 例句: ,Mary is after a better job.,玛丽在寻找一个更好的工作。, 二、词义辨析: , after,behind,at the back of ,这些词均有“在……后面”之意。after和behind用来表地点时,前者强调的是顺序的先后,而后者侧重方向和位置的前后关系。请比较:The student sat after me.那个学生坐在我后面。(我坐在他前面)。The student sat behind me.那学生坐在我背后。after与behind用于指时间时,前者强调时间的先后顺序,而后者则着重于表示“落后……”或“迟于……”的概念。试比较:Who ruled after James I?詹姆斯一世之后是谁统治的?You are forty minutes behind schedule.你比规定的时间迟了40分钟。after多用于表示因时间上的先后而造成顺序的前后场合,behind则常用于仅指位置上的前后关系。请比较:Please shut the door after you.请随手关门。Please shut the door behind you.请关上你身后的门。at the back of这个前置词短语既可指具体的位置的先后,又可用于指抽象的概念。, 三、相关短语: ,after a fashion,勉强,马虎;拙劣地,劲地,不高明地,after all,毕竟,终究,到底;要知道!,after hours,下班后,在规定时间后,在业余时间,chase after,v.1.追赶,追逐,day after day,a.日复一日(=day by day),go after,v.追逐,追求,look after,v.1.注视 2.照顾, 照看(人或某物),lust after,v. 渴望,贪求,take after,像…;学习;仿效;追赶;(在外貌,性格等方面)与(父母等)相像,be after,追赶,寻找,e after,v.1.跟着…来,跟在…后面,morning-after pill,翌晨避孕丸, 四、参考例句: ,After you.,您先请。,After you, sir.,先生,您先。,Look after yourself, bye!,自己当心点。再见!,Fasting es after feasting.,今日有酒今日醉,明日无钱不揭锅。,Look after yourself, bye!,自己当心点。 再见!,He arrived after dark.,他是天黑以后到达的。,After a vacation.,期之后。,He came after lunch.,午饭之后,他来了。,Fail again after that.,然后再失败。,Go after them today!,从今天开始,就朝着梦想进发吧!
(当然这一句用before after when and while的用法
Ifinishedwhen作并列连词构成并列句,意为and at that time“正在那时”, and just then“那时”或and then“突然”等意思。when前可以用逗号,也可以省略。同时,when可与suddenly连用以加强语气。这种结构常常用来表示发生的事情带有意外的性质。其句型有三类:
如果主句中的谓语动词是延续性动词,那么谓语动词用肯定式或否定式,它们所表达的意思有所不同。1. . was doing sth. when (suddenly)...表示“某件事情正在进行时,另一件事也发生了”。
We were swimming in the lake when suddenly the storm started. 我们正在湖里游泳,这时突然下起了暴风雨。
he was about to l me the secret when someone patted me on the shoulder. 他刚想把这秘密告诉我,这时某个人拍了拍我的肩膀。
1. 意为“当……时候,和……同时”,时间状语从句。例如:
While I was watching TV, the bell rang.
我看电视时,铃响了。
Meimei watched TV while she ate her supper.
梅梅边吃晚饭边看电视。
2. 意为“虽然,尽管”,让步状语从句。例如:
While it was late, he went on working.
虽然很晚了,但他还在继续工作。
While he is in poor health, he works hard.
虽然他身体不好,但他还是努力工作。
3. 连接两个并列句子,表示“对比”关系。例如:
He went out for a walk, while I stayed at home.
他出去散步了,而我却呆在家里。
I like singing while she likes dancing.
我喜欢唱歌,而她喜欢跳舞。
You like sports, while I prefer music.
你喜欢体育,而我更喜欢音乐。
after的用法:
after的时间状语从句如果具有将来意义,往往要用一般现在时来表示(有时也用现在完成时),而不能直接用一般将来时。如:
误:I’ll l him after you wil lee.
正:I’ll l him after you lee (或he left). 你走了之后我再告诉他。
(2) 选择一般现时或现在完成时(表示将来意义)的基本原则是:如果强调从句 动作在主句动作之前完成,则用现在完成时;如果强调主从句动作同时发 生,或几乎同时发生(尤其是当从句的谓语动词是get, arrive, see, hear, lee, return等表示迅速完成的动作的动词时),多用一般现在时(有时 两种时态都可以)。如;
I’ll lee when he comes back. 他回来后我就离开。
I will give mreallyy opinion when I he read the book through. 我把书看完了再提意见。
We’ll lee as soon as it stops (或has stopped) raining. 雨停我们就动身。
2. 一般说来,如果在过去某一时间内先后发生了两个动作,那么先发生的动作用过去完成时,后发生的动作用一般过去时。但是若用连词after 来连接这两个动作,由于after本身已说明了两个动作的先后关系,所以两者均可用一般过去时。如:
After he (had) closed the door, he left the house. 关了门之后,他就离开了家。
3. 有时以连词after的时间状语从句可以换成一个以介词after介词短语或以连词after的分词短语,而意义不变。如:
He went to school after he had breakfast (=after breakfast). 吃了早饭之后,他就去上学了。
After l had finished (=After hing finished / After finishing / Hing完活后就去睡觉了。
4. after还可用作副词,意为“后来”或“(一段时间)以后”,通常要放在另一时间副词之后。如:
We arrived soon (或just / shortly) after. 我们不久就到了。
He returned twenty years after. 20年后他回来了。
before的用法
1. 表示“在…..之前就…..”。
Mary had finished her homework before her mother returned.
2. 表示“过了多久后才…….. ,动作进行到什么程度才……”
The man almost knocked me down before he saw me .
They walked about 30 miles to the west before they saw a village .
3. 表示“刚…就…”
I had hardly sat down before the bell rang.
4. 表示“不知不觉就…..; 还没弄清就……”
5. 用于句型“it was +时间段+ before …” 表示 “过了多久才…”
It was three days before he came back. .
6. 用于句型“ it was not long +时间段+ before …” 意为“不久就….”
It was not long before he sensed the er of the ition .
7. 用于句型“it will be(not )+时间段+ before….”表示“要过多久/ 不久…才…”
It will be half a year before you graduate from this school .
It will be not long before you find you are wrong .
after的用法归纳分点回答
(c)after可用作连词连接一个时间状语从句,从句中一般用现在时表示将来。
(3)连词:after用作副词时常与soon, r搭配,通常用于表示时间的名词后。
+before...句型中,意思是“在……之后才……”。例如:after用作副词时不用于比较等级。 扩展资料 注意after和in的使用:从某时说到多少时间以后,不用after,而用in。如果指“某个时刻,日期或以后”,用after。
表达“某的'若干时间以后”时,应是“若干时间after”,而不是“after若干时间of”。
指“若干时间after日期或月份”时,常把当天的日期或当月除外。如five days after 3 July,指从7月4日算起的5天以后,也就是7月9日。
但有例外,five days after I July可能指7月8日,months after July可能指11月,注意避免这种结构产生误解;
指“从过去的某时或某事说到现在”时,不用after,用since,所以可说Since his graduation he has been abroad.(since不可改成after)一定要改的话,
可表示为After his graduation he went abroad. 这里的after是介词,用作连接词时用法一样。
after的状语从句,用现在时态,不用将来时态。
after since when 用法
while 用作连词时,有以下1.几种含义:sago,ince 翻译为 我三年没有见过他了,since的意思就是自从 when一般时间状语从句,after是“...之后”的意思
自从我上次看到他以来已是三年了
since . since 有自从的意思
after的用法归纳高中
seenafter+名词,作介宾短语;after+动名词,作介宾短语;after+代词,作宾语的主语。 扩展资料 after作介词后面可以加做宾语的动名词,名词,代词。
一、after作介词的用法:
1.after+名词,扩展资料:作为介宾短语,
如:after 5 o'clTheyock 五点以后。
2.after+动名词,也是作为介宾短语,
如:after hing finished my homework完成我的'作业后。
I will go to bed after drinking the milk.
3.after+代词,作为宾语的主语,
如:He went home after he finished all the work
二、after做副词的用法:
如:three hours after三小时后;He told me after that he had not enjoyed the film.他告诉我后来他一点都不想看电影。
三、after做连词的用法:
如:I saw them after I arrived.我到了之后才看到他们。
before,after,until的用法与区别?
o'clock,after在...以前
after
在...以后
until(b)
直到
1.
before用作连词时,意思是“在……之前;还没来得及
……
就”。例如:
Before
she
could
move,
she
heard
noise,
which
grew
to
aterrible
她还没来得及动弹,就听见有很响的声音,接着就成了可怕的隆隆轰鸣声。
Before
Icould
say
she
had
stormed
out
of
the
room.
不等我说一句话,她就冲出了房间。
Don’t
count
your
chickens
they
are
hatched.
不要高兴得过早。
2.
用于It
+时间段
It
will
be
five
years
Icome
back.
我五年后才能回来。
after用法:
(1)介词:
(a)
Please
to
my
house
after
dinner.晚饭后
He
ran
after
the
bus.
追赶
His
mother
waited
for
him
night
after
night.(一个)接着(一个)
(d)
It's
sad
to
fail
after
all
that
work.
由于
(e)
are
still
friends
after
all
their
differences.
(2)
副词:
(a)
three
hours
after;
departed
shortly
after;
after
all
Idon't
know
him.
(d)
He
told
me
afterwards
that
he
had
not
enjoyed
the
film.
后来
(a)
them
after
Iarrived.后来
arrived
soonthat's
after.
后来
tomorrow,
or
the
day
after...
(4)
名词:
(a)
afternoon午后;
afterthought事后的想法;
aftermath后果
until的用法
until可用作介词或连词,意为“到……时候为止”、“到……时候才”或“在……时候以前不”。
如果主句中的谓语动词是终止性动词,应采用“...
not
...
until
...”结构,意为“……到……时候才……”。例如:
eat
anything
until
you
see
the
doctor.
看过医生之后,你才能吃东西。
2.
1)
如果谓语动词为肯定式,则until译为“到……时候为止”。例如:
Iwatched
TV
until
she
came
back.
我看电视一直看到她回来。
2)
如果谓语动词为否定式,则until应译为“到……时候才”,即“在……以前不”。如:
Idid
not
watch
TV
until
she
came
back.
(=
Ibegan
to
watch
TV
when/after
she
came
back.)
3.
用终止性动词作谓语时,
until既可以和not连用,又可以和nr,
nobody,
nothing,
few,
little,
seldom,
hardly等含否定意义的词连用。例如:
Ihad
not
him
until
1990.
(=
Ihad
nr
him
until
1990.)
1990年以前我从未见过他。
Don’t
off
until
tomorrow
what
you
can
do
today.
(=
Nr
off
what
you
can
do
today
till
tomorrow.)
今日事,今日毕。
after表示时间的用法
Isaw在作为一个介词和连词时,after
since后面不能接时间点,只能说after
class
等;而作为副词的时候,上面的after
tmustn’two
days
则是正确的了。
two
days表示的是“(未来的)两天之后或之内”。
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