bythetime用法
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by which time的用法By which time的用法文章序号:0011. 简介1.1 定义在英语语法中,“by which time”是一个短语,由“by”、“which”和“time”组成。
它常常用来表示一个特定的时间点或事件发生之前的时间。
1.2 例句- 我从机场到家需要30分钟,所以如果你7点到达,我将在7点半之前到。
I need 30 minutes to get home from the airport, so I'll be there by which time if you arrive at 7.- 请把你的材料提交到我们公司,提交截止日期是12月31日。
Please submit your documents to our company by which time the deadline is December 31st.2. 基本用法“By which time”通常用于将一个事件或行动的完成时间与一个将来的时间点进行对比。
它强调了在该时间之前完成某事的重要性或必要性。
示例:- 约翰会在明天早上9点之前离开,到达会议地点。
John will leave by which time tomorrow morning and arrive at the meeting location.在这个例子中,“by which time”表明了约翰必须在明天早上9点之前离开家才能准时到达会议地点。
3. 替代表达在某些情况下,可以使用其他表达方式来代替“by which time”,以增强句子的简洁度和流畅度。
以下是两个常见的替代表达方式: 3.1 By the time- 请在明天早上9点之前到达办公室。
Please arrive at the office by the time tomorrow morning. 3.2 Before- 他需要在本周五之前完成这个项目。
状语从句用法总结下面是小编整理的一些关于状语从句用法的总结,希望能帮助大家更好地认识状语从句,提高英语水平。
一、由when, while, as引导的时间状语从句1. when引导的时间状语从句中的谓语动词可以是延续性动词,也可以是瞬时动词。
when有时表示“就在那时”。
如:When she came in, I was doing some housework. (瞬时动词) When I lived with the Smiths, we used to discuss international issues together. (延续性的动词)We were about to leave when he came in. (when表示“就在那时”)2. while引导的时间状语从句中的谓语动词必须是延续性的,并强调主句和从句谓语动词所表示的动作同时发生(或者相对应)。
如:While my wife was reading the newspaper, I was watching TV.(was reading是延续性的动词,was reading和was watching 同时发生)3. as 引导的时间状语从句中的谓语动词表示延续性的动作,一般用于主句和从句动作同时发生,有时也可以强调动作一先一后发生。
如:We always sing as we walk.As we were playing out, it began to snow.二、由till或until引导的时间状语从句till和until一般情况下两者可以互换,但是在强调句型中多用until。
需要注意的是:如果主句中的谓语动词是瞬时动词时,必须用否定形式;如果主句中的谓语动词是延续性动词时,用肯定或否定形式都可以,但表达的意思不同。
如:Don’t open it till your birthday.It was not until the meeting was over that he began to teach me English.Continue in this direction until you see a sign.I didn’t work until he came back.三、由since引导的时间状语从句1. 若since引导的状语从句的谓语动词是终止性的过去时,则从句表示的时间是“从动作开始的那一时刻起”。
by小结1.用于被动语态的句子中,表示动作的执行者,意为“被;由”。
He was praised by the teacher.他受到了老师的表扬。
The book was written by Lu Xun.这本书是鲁迅写的。
2.表示方式、方法、手段等,后常接无冠词的名词或动名词,意为“通过;靠;用”。
Don't judge a person by appearances. 勿以貌取人。
He made a living by teaching.他以教书为生。
3.表示时间,意为“到……时(为止”或“不迟于……”。
He ought to be here by now.他现在应该在这儿了。
By the time he was ten, he had learnt about 1,000 English words.至U十岁时,他已学了约—一千个英语单词。
4.表示(增减)程度,尺寸数量等,意为“至……的程度”。
the bullet missed me by two inches.那子弹以两英寸之差未击中我。
the rope needs to be longer by two feet.这绳子需要再长两英尺。
5.表示交通路线或工具,后接名词不用冠词,意为“乘;坐”。
go by bus / plane / train 乘汽车(飞机、火车)去travel by land / sea / air 陆上(海上、空中)旅行6.表示位置,意为“在近旁;在……旁边”。
There is a pumping station by the river.河边有个抽水站。
too-・to…通常用来表示否定含义,即“太• ••而不能・•・"(not enough to)The little boy is too young to go to school. The little boy is not old enough to go to school.精品by 的用法作介词讲:1. 在近处;在旁边standing by the window站在窗户旁边a table by the bed床边的桌子2. 经;由;从to enter by the door由门进去3. 经过…旁He walked by me.他从我旁边走过。
2016年广东专插本(英语)真题试卷(题后含答案及解析)题型有:1. V ocabulary and Structure 2. Reading Comprehension 3. Cloze 6. WritingV ocabulary and Structure1.—Where are you going, Tom? —To Bill’ s workshop. The engine of my car needs______.A.repairingB.repairedC.repairD.to repair正确答案:A解析:need,want,require,deserve这四个词作“需要”讲,且其前面的主语是指物的名词或代词时,其后常用动名词的主动形式或不定式的被动形式作宾语。
根据分析可知,空处可用repairing或to be repaired。
故选A。
2.The luggage is______heavy to carry all the way home. Let’ s call a taxi.A.veryB.tooC.soD.much正确答案:B解析:too…to意为“太……而不能”,为固定结构。
其他三项均没有这种用法。
3.Our teacher suggested that each of us______a study plan for the long summer vacation.A.makeB.madeC.will makeD.would make正确答案:A解析:当suggest作“建议”讲时,其后的宾语从句应用虚拟语气,即谓语动词用“(should)+动词原形”的形式,should可以省略。
根据分析可知,选A。
4.If you had told me earlier, I______to meet you at the hotel.A.had comeB.will have comeC.would comeD.would have come正确答案:D解析:根据从句的谓语had told可知,本句是对过去情况的虚拟,主句没有明显的时间状语,所以主句谓语动词应用“would/could/might+have+过去分词”的形式。
过去完成时用法及例句过去完成时是英语中的一种时态,表示在过去某个时间点之前已经完成的动作或事件。
在过去完成时中,动词的形式是 had + 过去分词。
这种时态常用于描述过去的两个动作或事件中,其中一个发生在另一个之前。
接下来将详细介绍过去完成时的用法,并给出一些例句以帮助理解。
过去完成时的用法:1. 表示过去某个时间之前已经完成的动作或事件。
例如:- She had already finished her homework before going to bed.(她在睡觉前已经完成了作业。
)- He had lost his keys by the time he got home.(他到家时已经丢了钥匙。
)2. 当两个动作或事件都发生在过去,但其中一个在另一个之前时,通常使用过去完成时来表示时间顺序。
例如:- When I arrived at the party, everyone had already left.(当我到达聚会时,所有人都已经离开了。
)- She had never seen snow until she visited Canada.(她在访问加拿大之前从未见过雪。
)3. 过去完成时经常与表示过去的时间状语连用,如 before, after, by the time, by等。
例如:- They had finished the project before the deadline.(他们在截止日期前完成了项目。
)- By the time the police arrived, the thief had escaped.(警察到达时,小偷已经逃走了。
)4. 过去完成时也可以用于虚拟语气中,表示对过去事件的假设、推测或愿望。
例如:- If she had studied harder, she would have passed the exam.(如果她学习更努力,她就会通过考试。
by的各种用法详解by的各种用法详解by表单位的用法归纳表示单位,意为“以。
计”,其后通常接表示计量单位的单数名词,且名词前要用定冠词。
如:They are paid by the hour (by the month). 他们所得报酬按小时(月)计。
Milk is sold by the pint, butter by the pound, and eggs by the dozen. 牛奶按品脱卖,黄油论磅卖,蛋类论打卖。
有时也接抽象名词,此时通常不用冠词。
如:Bananas are usually sold by weight. 香蕉通常按重量卖。
by表示时间的用法表示时间,指“最迟在。
之前”“到。
的时候已经”,此时要注意它所连用的时态。
如:He was very tired by the evening. 他到晚上已经很累了。
We will have finished the work by next month. 到下个月我们就会干完了这工作。
By the time the doctor arrived the patient had died. 在医生到达时,病人已经死了。
另外,表示时间时,它还可表示“在。
期间”,通常连用的名词是day, night, moonlight, daylight等,注意名词前通常不用冠词。
如:Cats sleep by day and hunt by night. 猫白天睡觉,夜里捉老鼠。
Do you like to swim by moonlight? 你喜欢在月光下游泳吗?表示手段或方式等,注意以下用法:(1) 表示“乘”“坐”时,其后接交通工具(如bus, bike, train, plane, car, taxi, ship等)或与交通工具密切相关的名词(如air, water, land, road等),在句中主要用作方式状语,其中通常不用冠词或其他限定词。
by的用法归纳及例句一、by的基本含义与用法1. by作为介词,表示“通过;凭借”。
例如:- I traveled to London by plane.(我乘飞机去伦敦。
)- We can solve this problem by working together.(我们可以通过合作解决这个问题。
)2. by也可用于表示某一时间或地点,相当于“在……旁边”或“在……附近”的意思。
例如:- There is a park by the river.(河边有一个公园。
)- The hotel is right by the beach.(该酒店就在海滩旁边。
)3. 此外,by还可以表示手段或方式,相当于“由于”、“凭”等。
例如:- She made her fortune by investing wisely in stocks.(她通过明智地投资股票致富。
)- We can communicate with each other by using a translation app.(我们可以通过使用翻译应用来互通信息。
)二、表示经过的时间段1. 当by后接时间单位时,常用于表示经过了多少时间。
例如:- I will finish the report in two days' time, so please check it by tomorrow afternoon.(我将在两天内完成这份报告,请在明天下午之前查看它。
)2. 并非所有时间短语都能与by连用。
以下是常见的搭配例子:- by the end of + 时间短语:到......末尾;到......结束。
例如:- I will finish reading the book by the end of this month.(我将在本月底读完这本书。
)- by the time + 句子:到......时候;不迟于......时间。
bythistime用法"By this time" 是一个在英语中常用的短语,它通常用来表示某个时间点已经过去,并且在这个时间点之前应该已经完成或发生的某个动作或状态。
这个短语在句子中可以用作状语,来描述一个动作的完成时间或状态的变化时间。
"By this time" 可以用在多种时态中,包括过去完成时、现在完成时和将来完成时。
下面我将详细解释这个短语在不同时态中的用法。
过去完成时:当"by this time"用于过去完成时,它表示在某个过去的时间点之前,另一个过去的动作已经完成。
例如:"By this time yesterday, they had already finished their homework."(昨天这个时候,他们已经完成了作业。
)现在完成时:当"by this time"用于现在完成时,它表示到说话人说话时为止,另一个动作已经完成。
例如:"By this time, I have learned a lot of new words."(到现在为止,我已经学会了很多新单词。
)将来完成时:当"by this time"用于将来完成时,它表示在某个未来的时间点之前,另一个未来的动作将已经完成。
例如:"By this time next week, we will have finished the project."(到下周这个时候,我们将完成这个项目。
)除了以上时态用法外,"by this time"还可以与其他时态结合使用,来表达更加复杂的时间关系。
例如,它可以与过去进行时结合使用,表示在某个过去的时间点之前,另一个过去的动作正在进行中。
总之,"by this time"是一个非常有用的短语,它可以帮助我们更加准确地表达时间关系和动作的完成状态。
介词by的用法1.表示“在...旁边”sit by the window 坐在窗户旁边stand by me 站在我旁边walk by the river 在河边走2.表示“从...旁经过”,常跟go/walk/pass连用Go by/walk by/pass by 走路经过3.表示使用交通工具by bus/plane/bike/train/shipby air/land/water 乘飞机/ 由陆路/ 由水路4.表示被动语态:被,由be saved by sb 被某人救了be caught by .. 被...抓住了be built by... 被...建造的5.表示方法,手段:用,通过by doing sth 通过做某事learn English by listening to tapes 通过听磁带来学英语by heart 用心by check/credit card 用支票、信用卡6.表示时间:不迟于,在...之前by + 具体时刻by + 年份by the time of + 表示时间的短语(如last year,next month,next year等)by the time + 句子I will be back by 6 o’clock.By 2010, I had learnt 2000 English words.By the time of last year,I had lived in WZ for 5 years.By the time I was 5,I had learnt to ride a bike.7.表示增减的程度increase by 10% 增加10%decrease by 20% 减少20%8.by+表示时间、长度、重量的总称名词,表示“按...计算”“按...买卖”by time 按时间by size 按大小by weight 按重量by volume 按体积by length 按长度by height 按高度by area 按面积by depth 按深度9.by+the+具体的,可数的时间、长度、重量的名词,表示“按....计算”“按...买卖”by the hour 按小时by the day 按天by the month 按月by the dozen 按打by the year 按年by the ton 按吨10.by+身体部位或衣服,表示抓住身体或衣服的某一部分,常与动词catch/hold/grab/seize/take等连用Catch sb by the hand/arm/hair 抓住某人的手/胳膊/头发Grab sb by the collar/sleeve 抓住某人的衣领/袖子11.用于“名词+by+名词”结构one by one 一个接一个step by step 一步步地day by day 一天一天地week by week 一个星期接一个星期的shoulder by shoulder 肩并肩的12.其他带有by的短语或句型What do you mean by....? 你说...是什么意思?What’s the time by your watch? 你的表几点了?by the way 顺便一说,顺便一问by oneself 独自一人by chance/by accident 偶然地无意的by design 故意的by nature 天生的By way of 经由,途径The batch of goods will be delivered by way of Hong Kong.这批货物将经由香港发货。
介词的种类及用法(三)一,表示时间的介词(for、during、through;by、till/until;)1. for、during、through1). for + 一段时间达……之久(表示经过一段时间);可以和一般现在时、过去时和将来时连用;但经常和完成时连用。
①.He has lived here for six years.他在这儿已经住了六年了。
②.There's enough food for three days.那些食物够你们用3天。
③.It rained continually for three days.雨接连下了三天。
2).during 在……期间;在…的时候①.During the Spring Festival, we make dumplings.在春节里我们包饺子。
②.Neither of us spoke during the journey.旅途中我们谁也没讲话。
3).through 一直…… (从开始到结束)But together, we will make it through the day但我们会一起度过一天2. by、till/until1).by 在……前(时间);到……为止;①.By the end of 在….底/末(之前);They had finished their work by last Sunday.他们在上周日前就完成了任务。
②.by the time + 从句到……的时候By the time he arrived, she had already left.当他到达时,她已经走了。
③. by then 到那时By then we were a safe distance away.到那时,我们已经有了一个安全的距离。
2).till/until 直到……为止;not … until/till 直到…才①.I sometimes stay in bed until lunchtime.有时我要一直躺到吃午饭的时候。
By the time 用法详解 • by the time意为“到……时候(为止)”,是一个介词短语,在句中经常起连词作用,引导时间状语从句。它的主要用法如下: • 1. 如果从句中的谓语动词是一般过去时,那么主句中的谓语动词通常用过去完成 时,表示“截止到从句动作发生时,主句动作已经完成,即过去的过去”。例如: • By the time he returned home,the rain had stopped. • By the time I got to the station,the train had already gone。 • 2. 如果从句中的谓语动词为一般现在时/或现在完成时(表示将来),那么主句中的谓语动词常为将来完成时,表示“截止到将来某一时间为止,主句动作将已经完成”。 • By the time you get back,I shall have finished the work. • By the time I graduate next year, I will have lived here for 5 years. • By the time of next term , we will have learned 3000 words. • 3. 如果主句动作不强调已经完成,只是说明某个时候的状况,(主句是be的系表形式或者是表示像know, find, believe等表示认知的持续性动词,则往往用一般时态,不用完成时态。)此时主句不用完成时,而应根据实际需要选用适当的时态,此时by the time相当于when。 例如: • He was out of breath by the time he reached the top. • By the time the bus came,so many people were waiting that it was a free fight to get on it. 公共汽车来的时候,等车的人很多,成了一场挤车的混战。 • By the time he went abroad, he was fourteen.出国那年他14岁。 • By the time the war was over , death and suffering were to be seen everywhere. • 在战争结束的时候,到处可见死亡和饥饿。 这里没有“死亡和饥饿”已经完成的意思,只是描述当时这个时间点的状况。所以用过去时。 • 巩固练习: • 1. (2005天津卷) By the time Jane gets home, her aunt _____for London to attend a meeting. • A. will leave B. leaves • C. will have left D. left • 2. By the time you have finished this book, your meal ___ cold.(2012四川卷) • A. gets B. has got C. will get D. is getting • 3. (2009北京卷) When I talked with my grandma on the phone, she sounded weak, but by the time we _____ up, her voice had been full of life. • A. were hanging B. had hung • C. hung D. would hang • 4. ―Did you see Xiao Li at the party • ―No,_____by the time I arrived. • A. she’d left B. she’s left • C. she was left D. she must leave • 5. By the time I saw the angry expression on his face,I_____ what I had to face. • A. knew B. have known • C. would know D. had known 6.(2008四川卷) The telephone_____, but by the time I got indoors,it stopped. A. had rung B. was ringing C. rings D. has rung • 7.(2008山东卷) By the time he realizes he _____into a trap, it’ll be
too late for him to do anything about it. • A. walks B. walked C. has walked D. had walked
情态动词用法总结如下表 情态 动词 用 法 否定式 疑问式 简答式
can 1.表示能力(体力,技能) 2.允许或许可(口语中常用) 3.可能性(表猜测,用于否定句或疑问句中) 4.用于肯定句表示理论可能性 can not / cannot /can’t do Can…do… Yes,…can.
No,…can’t. could couldn’t do may 可以(问句中表示请求) 可能,或许(表推测) 祝愿(用于倒装句中) may not do May…do… Yes,…may. No,…mustn’t/can’t.
might might not do Might…do… Yes,…might No,…might not.
must 必须,应该(表主观要求) 肯定,想必(肯定句中表推测) must not/mustn’t do Must…do… Yes,…must. No,…needn’t/don’t have have to 只好,不得不(客观的必须,有时态和人称的变化) don’t have to do Do…have to do… Yes,…do. No,…don’t.
ought to 应当(表示义务责任,口语中多用should) ought not to/oughtn’t to do Ought…to do… Yes,…ought. No,…oughtn’t.
shall 用于一三人称征求对方意见 用于二三人称表示许诺、命令、警告、威胁等 shall not/shan’t do Shall…do… Yes,…shall. No,…shan’t.
should 应当,应该(表义务责任) 本该(含有责备意味) should not/shouldn’t do Should…do… will 意愿,决心
请求,建议,用在问句中would比较委婉 will not/won’t do Will/Would…do… Yes,…will.
No,…won’t. would would not/wouldn’t
do
dare 敢(常用于否定句和疑问句中) dare not/daren’t Dare…do… Yes,…dare. No,…daren’t. do need 需要,必须(常用于否定句和疑问句中) need not/needn’t do Need…do… Yes,…must. No,…needn’t.
used to 过去常常(现在已不再) used not/usedn’t/usen’t to do didn’t use to do Used…to do… Did…use to do… Yes,…used. No,…use(d)n’t. Yes,…did. No,…didn’t.
学法提炼 must have done 表示主观上对过去已经发生的行为进行推测,意为“想必,准是,一定做了某事”; may/might have done 表示对过去已发生行为的推测,意为“很有可能”;
can…have done cannot have done
1) could have done 用于对过去可能性的推断,意为“可能”,在肯定句中,指“某事可能是事实或可能会发生”;用于疑问句或否定句,表示对过去情况的怀疑、否定或惊讶; 2)could have done 意为“本来可以;差点就要”,指“某事可能发生但实际上未发生”常用于虚拟语气,表示惋惜、遗憾等;
might have done 表示“本来可能……,但实际上没有发生的事情”。另外,还可以表示“本来应该或可以做某事”之意,含有轻微的责备语气。 should/ought to have done 1) 用于肯定句时,表示本该做某事,而实际上未做;用于否定句时,则表示不该做的事反而做了; 2) 用于对过去的推断,说话人认为“按理应当、理应如此”,说话人不能肯定,只是试探性地得出结论,语气婉转; 3) 对已发生的事表示“惊奇、失望、愤怒”等情绪。
needn’t have done 表示做了本来不必去做的事。注意:didn’t need to do表示“没必要做而实际上也没有做某事”
will/would have done 用于推测过去,意为“想必、可以肯定”,指“说话人确信某事已发生,但并不确知”,并用于二、三人称: 1)如果以现在为时间点,可以用“will have done”; 2)如果以过去为时间点,只能用“would have done”; 3)will have done也用于推测将来某个时间前已经完成。 If they _________ to do this work, he might do it some other way. A. were B. should C. will D. can 2. I was told yesterday that the company _________ me to Rome next week for a business conference. A. should have sent B. were going to send C. should be sending D. should send 3. Let’s take a walk, ________ A. will we B. don't we C. do we D. shall we 4. He was a good swimmer so he _________ swim to the river bank when the boat sank. A. could B. might C. should D. was able to 5. I went to the doctor's yesterday, I had to wait for half an hour before he ________ see me. A. can B. may C. might D. could