Before的详细用法总结.docx

Before的详细用法总结今日给大家带来Before的用法，我们一起来学习吧，下面我 就和大家共享，来观赏一下吧。Before的用法我们最初接触的Before 一般是作为介词 使用的，一般表示空间 上的“在之前”。例如：The tea has been set before her.茶已经摆在她面前了。Before作为介词时，需要留意的是，一般不用在表示详细时间 的词之前。比如，两年之前，我们用two years ago,而不能说.efore two years.Before作为介词 时，有一个特别用法需要留意，即before long 表示“不久之后”。例如：Before long he got married.不久之后他就结婚了。Before作为连词 时，一般意为“在之前”，用来引导时间 状语从句。引导的从句中的动作一般发生在主句动作之后。Before作为连词时的用法较为简单，详细要点如下：一、主句用一般现在时/一般将来时，从句用一般现在时。例如：You should let me explain what I did before youcriticize me.她成天站（在）柜台（后面）。The garage is behind the house.车库在房子后面。There is an orchard behind the school.学校后面有一座果园。2）比晚:The train is behind time.火车晚点了。You are an hour behind your appointed time.你比商定的时间晚了一个钟头。Father was behind time.爸爸来晚了。3） behind用于某些成语：Don, t talk behind people' s backs.不要在背后谈论人。He has been behind the scenes.他始终在幕后操纵。Sorry, but we' re behind the schedule.对不起，我们落在方案后面了.You are behind the times with your information.你了解的状况都过时了。You' re behind the times.你落在时代后面了。The airplane was behind time.飞机晚点了。并列连词和连词短语并列连词用来连接平行的词、词组或从句。常见的连词有 and , but , or , so , bothand , eitheror .neithernor , not onlybut also 等。1. andD.and表示“和、且”在确定句中连接并列的成分。He is laughing and talking .2) .祈使句+ and，"and”表示“那么”之意。=IfStudy hard , and you will succeed . = If study hard , you will succeed .2. but表示转折关系的连词，意为“但是”He is poor , but honest .3. orD.or有“或”的意思，表示一种选择Would you like tea or water ?2) .“祈使句,(),” or表示否则。=Ifnot，Study hard , or you will fail. = If you dont study hard , you will fail .3) . or用在否定句中表示并列关系。He can' t read or write .4. bothD.both “两者都”，后面的名词、动词都用复数。Both the answers are right .2) . both of .Both of us are students .3) .both andBoth you and she are right .5. either/ either or1) . either ”两者当中任何一个"，后有of时接名词的复数形 式，无of时接单数名词，动词用单数形式。You may wear either of the hats.2) . either or- "不是就是，或者或者.”动词与接近的主语保持全都。即“就近原则”.Either you or he has to go = Either he or you have to go .6. neither /neither nor*1) . neither ”两者当中都不”，后有of时接名词的复数形式， 无。f时接单数名词，动词用单数形式。Neither of the answers is right .2) . neither.nor”既不.也不”动词与接近的主语保持全都。即“就近原则”.Neither you nor I am right .= Neither I nor you are right .介词before, by的用法介词用于名词、代词或相当于名词的其他词类、短语或从句前, 表示与其他成分的关系。介词可以与名词、形容词和动词搭配表示不 同的意义。2.表示某一时间的介词2 ) before, bybefore表示某一时间之前。比如：We finished the work before noon.我们中午前完成了工作。He' 11 be in his office before 5 p. m.下午五点之前他将在办公室。They returned to their college before September 1.九月一日前他们回到了高校。by表示到某一时间为止。比如：By last Saturday, we had had two football matches with ClassTwo.到上星期六为止，我们和二班进行了两场足球赛。We had built three bridges over the river by the end of 1994.到1994年底我们在河上造了三座桥。By the end ofthis term, I had learned 400 words.到这个学期结束的时候，我已经学了 400个单词。欢迎转发发动大家来做作业，学英语英语作业20231106一、选择填空。7. People attended many celebrations Christmas.A. at B. forC. since D. on8. The flight will depart at 10:35 a. m. and you must get to the airport 8:30.A. until B. toC. by D. within参考答案：7-8： AC二、分析句子的语法结构，并译成中文。The body of a man has been discovered in the ruins of two dilapidated buildings that collapsed in the centre of Marseille on Monday. The Guardian Before的用法总结文档内容到此结束，欢迎大家下载、修改、丰富并分享给更多有 需要的人。在你批判我之前，你应当让我解释一下我做过什么。二、主句用过去完成时，从句用一般过去时。一般翻译为“在 之前就”。例如：1. His father had died before he was born.他父亲在他诞生之前就已经 去世了。2. She had finished her homework before her mother returned.她在妈妈返回之前就已经把作业完成了。三、主句用一般过去时，从句用过去完成时。从句用过去完成 时表示一个过去没有完成或没来得及做的、时间挨次在后的动作, 常译为“还没（来得及）就 ”。例如：1. He rushed out of the office before I had realized what was happening.我还没意识到发生了什么事，他就冲出去了。2.She left before I had had a chance to speak to her.我还没来得及跟她说话，她就离开了。四、主句用一般过去时，从句用一般过去时。（不强调时间的先 后，只是一般性地叙述事实。）留意：很多语法格式并没有局限性，大多数时候只是为表述服 务的。语法规章多为总结日常用语而来，多数是描写性质的，我们可 以从一些日常用语中提炼出一些语法规章，但切不行生搬硬套某些语 法规章来生造出一些并不存在的句子。例如：1. She didnt understand me before I explained it to her.在我向她解释之前，她不理解我的意思。2. His father died before he was born.（留意与其次条规章中 例句对比）他诞生之前，他父亲就去世了。3. She left before I had a chance to speak to her.（留意与 第三条规章中例句对比）我还没来得及跟她说话，她就离开了。五、before从句的谓语有时用could+动词原形，主句用一般过 去时/过去完成时。例如：1. She quickly locked the door before he could reach it.她趁他还没走到门前快速锁上了门。2. It was some time before she could speak.过了好一会儿她才说出话来。六、固定句型：1. It was +时间段+ before意为"过了多久才”It was a long time before he got to sleep again.过了很长时间，他才又睡着了。2. It was not long +时间段+ before 意为"不久就”It was not long before he sensed the danger of the position.不久他就意识到了境况的危急。3. It will （not） be + 时间段+before 从句.（before 从句指将 来时间，通常用一般现在时。）It will be an hour before the police arrive.要过一个小时，警察们才能到。留意：before从句在某些状况下也可用一般将来时，这时一 般含有说话人的主观感情颜色。例如：It will be long before she will come back.她要过很 久才能回来。（说话人认为她过很久才能回来，强调时间之长，可能 意指听话人别再等了。）Some experts predict that it wont be many years before China will surpass the United States.有些专家预言，中国用不了多少 年就会超越美国。（强调所需时间之短）七、Before用于特别结构hardly/scarcely/barely. . . when/before 中，表示主句和从句的动 作相继发生，意为“一就，刚就”。例如：I had hardly sat down before the bell rang.我刚坐下，铃就响了。留意:hardly, scarcely, barely位于句首时，主句要用部分倒装。例如：Hardly had a moment passedbefore the door creaked open.还没过一会儿，门就“咯吱”一声开了。留意:hardly/scarcely/barely. . . when 有时可与 not. . . before 换用。They had hardly talked for half an hourwhen she entered.=They had not talked for half an hour before she entered.他们才谈了不到半个小时，她就进来了。八、Before的一些特别翻译法。1 .翻译为“否则，以免”。Do it now before you forget .I will write it down before I forget it .2.翻译为“宁愿也不”，常与will/would连用。I would die before I would tell the truth.I' d shoot myself before I apologized to him.I would / will die before I surrender .FAITH英语每天学“ago”和“ before”的用法今日专攻表示以前的两个词的用法：ago和before首先，来学习ago的用法：ago表示某时间以前，在其前面放上 一个时间词组，如：3 years ago（3年以前），2 days ago（两天以前）， one year and a half ago （一年半以前）,4 months ago （4 个月以前）： 用到ago这个词时，句子一般用过去式：I came to Guangzhou and settled down 6 years ago.我六年前来到广州并定居下来。Jenny didn' t know how to ride a bike 5 months ago.珍丽5个月前还不会骑自行车。We met each other on the internet 3 weeks ago.我们是3个星期前在网上熟悉的。My roommate borrowed 200 dollars from me days ago.我的室友几天前从我这儿借了 200块钱。I started to pick up my career months ago.我是在数月年重拾了自己的事业。下面，我们来学学before的用法，首先，我们可以在before后 面放上一个名词，或名词性词组：I' 11 try to finish my report before dinner.我要在晚饭前完成这个报告。I' 11 pick you up at the entrance before 6:30.我6点半以前到入口处接你。同时，我们也可以在before后放一个句子，表示在做某事之前， 一般也会用过去式，或一般时：Before I came to Guangzhou, I was in Beijing as an English interpreter.我来广州之前，在北京做英语口译。Before we got married, we were living in completely different countries.我们结婚以前，住在完全不同的两个国家。Before everything goes well, we need to work out a plan.在一切顺当之前，我们需要做出一个方案出来。另外，before还可以直接单独使用，表示“从前”，“以前”：I never thought about it before.我以前从来没想过这事。介词before和behind的用法及例句4. before的用法和例句：1）在前面：We have a good day' s work before us.我们还有一成天的工作要做。He wanted to show off before her.他想在她面前卖弄一下。Pride comes before a fall.傲慢就会摔交。（谚）2）在之前：The darkest hour is before the dawn.最黑暗的时刻过了就是黎明。（谚）Before starting the work, they had a good discussion.工作开头之前他们好好争论了一次。That happens in 400 B. C. （before Christ）.这足公元前400年发生的。3）用于某些成语：Before long, their work began to show results.不久他们的工作见成效了。We got there before time.我们提前到达那里。They arrived the day before yesterday.他们是前天到的。5. behind用法和例句:1）在后面：She stands behind the counter all day.