早教吧作业答案频道 -->英语-->
是beforework还是beforeworking是不是b是beforework还是beforeworking是不是before后加动名词或名词?
题目详情
是before work 还是 before working 是不是b
是before work 还是 before working 是不是before后加动名词或名词?
是before work 还是 before working 是不是before后加动名词或名词?
▼优质解答
答案和解析
before working 这里的before 是介词 介词加动词ing形式
一、 before用作连词
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 a great noise,which grew to a terrible roar.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 I could say a word,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 before they are hatched.不要高兴得过早.
2. 用于It + be + 时间段 + before...句型中,意思是“在……之后才……”.例如:
It will be five years before I come back.
我五年后才能回来.
It was not long before the enemy was driven out of their country.不久之后,敌人就被赶走了.
如果主句中用否定式,则表示“不多久……就”.
It won’t be long before they understand each other.他们不久就会互相了解的.
3. 还有“趁……(还没有)”之意.例如:
They are thinking of buying the house before the prices go up.他们正在考虑趁房价未涨时把房子买下来.
Do it before you forget it.趁早动手,以免忘了.
二、before用作介词
before用作介词时,可以指时间“earlier than在……之前”,也可以指位置“in front of在……之前”.例如:
There is nothing that has not been bitter before being ripe.凡事在成熟前,都是有苦味的.
Don’t put the cart before the horse.不要本末倒置.
He was brought before the judge.他被带到法官面前.
三、before用作副词
before用作副词时,意思是“at an earlier time / in the past以前”.例如:
I’ve seen the film Titanic before.我以前看过《泰坦尼克》这部电影.
I have never seen such beautiful flowers before.我以前从未见过如此美丽的鲜花.
四、短语before long与long before的区别
before long是“很快,不久”的意思,可以用于各种时态.例如:
Before long,he went to America.不久,他就去了美国.
I hope to see you before long.我希望不久后再见到你.
而 long before是“很久以前”的意思,一般用在过去时或过去完成时的句子里.例如:
She said she had read the novel long before.她说她很久以前就读过这部小说.
That happened long before.那件事发生在很久以前.
一、 before用作连词
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 a great noise,which grew to a terrible roar.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 I could say a word,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 before they are hatched.不要高兴得过早.
2. 用于It + be + 时间段 + before...句型中,意思是“在……之后才……”.例如:
It will be five years before I come back.
我五年后才能回来.
It was not long before the enemy was driven out of their country.不久之后,敌人就被赶走了.
如果主句中用否定式,则表示“不多久……就”.
It won’t be long before they understand each other.他们不久就会互相了解的.
3. 还有“趁……(还没有)”之意.例如:
They are thinking of buying the house before the prices go up.他们正在考虑趁房价未涨时把房子买下来.
Do it before you forget it.趁早动手,以免忘了.
二、before用作介词
before用作介词时,可以指时间“earlier than在……之前”,也可以指位置“in front of在……之前”.例如:
There is nothing that has not been bitter before being ripe.凡事在成熟前,都是有苦味的.
Don’t put the cart before the horse.不要本末倒置.
He was brought before the judge.他被带到法官面前.
三、before用作副词
before用作副词时,意思是“at an earlier time / in the past以前”.例如:
I’ve seen the film Titanic before.我以前看过《泰坦尼克》这部电影.
I have never seen such beautiful flowers before.我以前从未见过如此美丽的鲜花.
四、短语before long与long before的区别
before long是“很快,不久”的意思,可以用于各种时态.例如:
Before long,he went to America.不久,他就去了美国.
I hope to see you before long.我希望不久后再见到你.
而 long before是“很久以前”的意思,一般用在过去时或过去完成时的句子里.例如:
She said she had read the novel long before.她说她很久以前就读过这部小说.
That happened long before.那件事发生在很久以前.
看了 是beforework还是b...的网友还看了以下:
X、Y、Z、W、R是5种短周期元素,其原子序数依次增大。X是周期表中原子半径最小的元素,Y原子是外层 2020-05-24 …
(2013•南开区一模)X、Y、Z、W、R是元素周期表前四周期中的常见元素,其相关信息如下表:元素 2020-06-09 …
X、Y、Z、W、R是原子序数依次增大的四种短周期元素,W的焰色反应呈黄色,X、W是同主族元素,可形 2020-07-05 …
线速度中v=w*r中的w和r是什么意思 2020-07-11 …
X、Y、Z、M、W、R是元素周期表中1~36号元素,且原子序数依次增大,X、Y、Z是位于同一周期的相 2020-12-05 …
已知X、Y、Z、W、R是原子序数依次增大的短周期主族元素,X是周期表中原子半径最小的元素,Y元素的最 2020-12-31 …
X、Y、Z、W、R是原子序数依次增大的前四周期元素(稀有气体除外).X的基态原子中的电子平均分布在三 2021-01-05 …
已知X、Y、Z、W、R是原子序数依次增大的短周期主族元素,X是周期表中原子半径最小的元素,Y元素的最 2021-01-05 …
已知X、Y、Z、W、R是原子序数依次增大的短周期主族元素,X是周期表中原子半径最小的元素,Y元素的最 2021-01-05 …
已知X、Y、Z、W、R是原子序数依次增大的短周期主族元素,X是原子半径最小的元素,Y的最高正价与最低 2021-01-14 …