sentence It will be long before your father comes back from the USA. /It-will-be-long-before-your-father-comes-back-from-the-USA.= 1

It will be long before your father comes back from the USA. 英语句型语法分析长句已解锁

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[[0, 1], [2, 3], [3, 4], [4, 5], [5, 13]] [[0, 1], [2, 3], [3, 4], [4, 5], [5, 13]]

It + is + long + before + 状语从句

adj. 长的, 长久的, 冗长的, 做多头的

  • It will be long before your father comes back from the USA.
  • It will not be long before we meet again.

it 的其它常用短语:

It be. sth. for sb. to do. (sth.)It is an honor for sb. to do. (sth.)
It is adj. for sb. to do. (sth.)It is adj. (for sb.) to do. (sth.)
it sth., 代词 it + 名词补语it all, all 是名词补语
[[7, 8], [8, 9]] [[7, 8], [8, 9]]

come + back

v. 回来, 在记忆中重现, 复辟, 恢复, 回签
come 名词性副词,多表示位置、方向、时间
vi. 过来..., 来..., 到达..., 出现..., 开始...

  • A group of Asians are just coming back from the grocery store and some are carrying the bags.
  • I had him come back to keep us safe
  • I never made him come back to keep us safe
  • come back after the rush
  • A dog chased a squirrel up a tree and is waiting for it to come back down.
  • After John stewed in his own juice for a while, he decided to come back and apologize to us.
  • A boy is happy that his lost dog has finally come back after 3 weeks.
  • The radio station came back on the air shortly after the storm.
  • When you are squared away, come back and we'll talk.
  • Please come back soon.

come 的其它常用短语:

come back home回家come back anytime
come back from sp.come back to haunt sb.
come about发生come across偶遇
come across to sth.come across with sth.偿付
come along出现come along with sb.
come aroundcome around for a visit
come around to sp.come in进来
come in on a wing and a prayer带着翅膀来祈祷come on进行
come on as sth.come on in the water's fine
come on strong给人以强烈印象come out出来
come out first得第一名come out against sth.反对
come out aheadcome out at sth.(总数、平均数等) 达
come out for sth.声明支持come out in bloom
come out in drovescome out in force
come out in large numberscome out in sth.出现(斑点)
come out in the open公开露面come out in the wash暴露
come out into the open公开露面come out on sth.
come out on top获胜come out to sth.
come out wellcome over过来
come through经历...仍活着come together聚会
come together on sth.聚在一起come up发生
come up to do. (sth.)come up against sth.对抗...
come up to sb.come up for air暂停一会儿
come up for auction被拍卖come up for sale
come up for sth.为了...到来come up from behind

[[7, 8], [9, 10], [10, 13]]

come + from + sth.

v. 来自...; 出身于...; 源于...; 归因于...; 以...身份, 以...立场

from 的用法



  • He ran all the way home from school. 他从学校一路跑回家。
  • Our prices start from two dollars a bottle. 我们的售价从 2 美元一瓶开始。

意为出自..., 来自..., 从...而来

  • This beer is imported from Mexico. 这种啤酒是从墨西哥进口的。

意为由于..., 因为...

  • They are tired out from planting the corn yesterday. 由于昨天种了一天玉米,今天他们都十分疲劳。


  • The house is five miles from the town. 这房子离市镇有5英里路。

意为用..., 由...

  • Paper is made from wood. 纸用木材做原料。

意为避免..., 防止..., 以免...

  • He covered his wife from the man's blows with his body. 他用身体挡住那人,从而使他妻子免遭打击。

意为由..., 与...(不同)

  • I can't tell one twin from the other. 我分不出双胞胎中谁是谁。

意为由...(来看), 根据...(来判断)

  • From her looks you would say she was about twenty. 从她的模样看,你会说她约摸 20 岁。

意为凭..., 据...

  • He played the music from memory. 他凭记忆演奏了那首曲子。

  • Did this letter come from Alice?
  • A mother explains where babies come from to her son.
  • Protesters have come from different parts of the country to make themselves heard.
  • A goalie stops a slap shot that came from center ice.
  • A mother and her two kids with balloons have just come from the circus.
  • woman coming from her garden
  • A notice came from the Internal Revenue Service.
  • He's flying high these days, but he comes from a very poor family.
  • A person is coming from the red building and out of a black window of a tan
  • There is music coming from the stage.

come 的其它常用短语:

come prep. sth.过来...come 副词性介词过来...
come 名词性副词,多表示位置、方向、时间过来...come 形容词
come on holidaycome to conclusion
come back回来come advb. from sth.
come to light暴露come home to do. (sth.)
come down in sth.come down with sth.感染上...
come into your own充分施展才能come forth出来
come here来这里come to the point变尖锐
come upon sth.偶遇come in contact with sth.接触
come to no good没有好结果come round the corner
come down to sth.被降到..come here to do. (sth.)
come down下来come in for sth.接受
come to school来学校come about sth.发生
come by sth.得到come to sth.涉及到...
come to an understanding取得谅解come down on sth.惩罚
come between在...中间come after sth.跟在...后面
come alive活跃come before sth.发生于...之前
come for sb.come off发生
come out sth.到边远地区来come round顺便来访
come up smiling重振精神come along sth.出现
come in sth.进来come to an agreement[经] 商订
come to life苏醒come out of sth.从...出来
come over to sp.来...come to a decision作出决定
come right变得正确come into the blossom开花
come with sth.与...一起来come into one's own得到自己该得的东西

[[1, 2], [2, 3]]

mod. + be. + ...


  • It will be long before your father comes back from the USA.
  • It is a great honor for Beijing that the Olympic Games will be held in Beijing
  • If you have spare time to visit my hometown, I 'd be more than happy to be your guide.
  • I 'll be glad when this day is over, and that's a fact.
  • Children under 5 years of age in that country must be under adult supervision when in a public library.
  • It will not be long before we meet again.
  • So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
  • According to the weather forecast, this should be a beautiful day.
  • A left-luggage office is a place where bags can be left for a short time, especially at a railway station.
  • I don't think I 'll be able to make your party, but thanks for asking me.
[[1, 2], [2, 3]] [[1, 2], [2, 3]]

will/would + be.


will、would 有何区别



  • I will join the expedition.
  • We will meet again in another life.
  • I would like to meet them again.

[[6, 7]]


n. 父亲



father 的其它常用短语:

a father of sth.
[[11, 12]]


n. 美国


It will be long before your father comes back from the USA.



It will be long


It主语 will bebe 动词(复合结构) long表语(形容词)


your father comes back from the USA.


your father主语 comes {名词性副词}谓语动词短语 back名词性副词
from the USA.



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