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:
(2014•北塘区二模)如图,半径为r的⊙O沿折线ABCDE作无滑动的滚动,如果AB=BC=CD= 2020-04-12 …
1,一次函数Y=kx+b,与x轴的交点坐标是什么?2.已知p=(E/R+r)^2*R,其中E与r是 2020-05-13 …
设A是n阶矩阵A^2=E,证明r(A+E)+r(A-E)=n,的一步证明过程不懂由A^2=E,得A 2020-05-14 …
已知字母组合成英语单词1、e e t t i n h r 2、e e r a t w h 3、o 2020-05-14 …
将字母组成单词,并译成汉语1.m,e,r,m,u,s,汉语2.u,l,t,e,c,u,r,汉语3. 2020-06-04 …
E^2*R/(R+r)^2=E^2/(R-r)^2/R+4r(某公式推导最后两行)本人只得:=E^ 2020-06-07 …
求解一个6阶的方阵R,满足条件:R*R'=diag(1,1,1,1,1,1)并且[0.0535,0 2020-06-22 …
完全平方式问题R'/(R+R')^2求最大值,把下面的平方式展开变成R'/(R^2+2RR'+R' 2020-06-27 …
matlab求解二阶导数方程,四个方程四个未知量>>symst>>E=32;G=10.81;b=2 2020-07-19 …
老师讲的是用来求额定电压的还有学到求电池E和r的时候讲到E真>E测的时候除了图像法老师说的另一种方法 2020-12-26 …