by_the_time_的用法
bythetime的三种用法
bythetime的三种用法Bythetime 的三种用法Bythetime 是一个英语短语，用来指代某事在某个时间之前已经发生或完成。
它可以用来描述过去、现在和将来，具有一定的灵活性。
在本文中，我们将详细介绍 Bythetime 的三种常见用法。
1. Bythetime + 过去完成时Bythetime 可以与过去完成时连用，表示在某个过去的时间点之前已经发生或完成的动作。
过去完成时用法为 had + 过去分词。
例如： - Bythetime I arrived home, my mother had already cooked dinner. （在我到家之前，妈妈已经做好了晚饭。
） - Bythetime John woke up, his friends had already left. （约翰醒来时，他的朋友们已经离开了。
）2. Bythetime + 现在完成时Bythetime 也可与现在完成时连用，表示在现在之前已经发生或完成的动作。
现在完成时用法为 have/has + 过去分词。
例如： - Bythetime you finish reading this article, you will have learned a lot.（当你读完这篇文章时，你已经学到了很多。
） - Bythetime we arrive at the cinema, the movie will have started.（当我们到达电影院时，电影已经开始了。
）3. Bythetime + 将来完成时Bythetime 还可以与将来完成时连用，表示到某个将来的时间点之前已经发生或完成的动作。
将来完成时用法为 will have + 过去分词。
例如： - Bythetime you come back, I will have finished my work.（当你回来时，我已经完成了我的工作。
by的所有用法
by的所有用法介词by可以用来表示方位、时间、手段等,其用法在考试中曾多次出现。
by的所有用法有哪些呢?本文是店铺整理by的所有用法的资料，仅供参考。
by的所有用法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.到十岁时,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。
词by可以用来表示方位、时间、手段等,其用法在高考中曾多次出现。
下面结合高考试卷和其它一些例句做一下归纳：一、by+地点名词。
by the time的用法归纳
by the time的用法归纳bythetime是一种常用的表达方式，它表示“到…时候”，是指已经经过某段时间，指定的时间到了。
它不仅仅可以用来指明一件事将会在某一时刻发生，而且可以用来暗示在这个时刻之前会发生什么。
无论是在非正式的口语或者正式的书面文章，by the time都是一种常用的表达方式。
下面就by the time的用法做一个归纳。
一、by the time +子1、by the time引导的时间状语从句，表示“到…时候”，其中的时间状语从句可以表达过去的时间也可以表达将来的时间，既可以有过去式又可以有将来式。
例句：By the time I finish my homework, it will be midnight.到我完成我的作业时，就已经半夜了。
By the time we arrived at the station, the train had already left.等我们到达车站的时候，火车已经开走了。
2、by the time也可以用来引导主要从句，表示“到…时候”。
此时，by the time往往放在主句的句首，而且往往后面接一个完成时。
例句：By the time she left, he had been waiting for an hour.她离开的时候，他已经等了一个小时了。
By the time I arrive home, you will have gone to bed.到我回家的时候，你已经睡觉了。
二、by the time后接not +词原形by the time还可以用来表示某事实际上不可能发生，而其意义是“即使到某时候”或“即使到某点上”，因为先前的条件不能满足所以不可能发生。
例句：She was so exhausted that by the time she reached the station, she couldn move.她太累了，所以即使到车站了也动弹不得。
by的用法短语搭配
by的用法短语搭配一、简介"by" 是一个非常常用的英语介词，它可以用于多种场景和表达方式。
作为一个功能强大的用法短语搭配，在不同的语境中，它起到了连接信息、表示方式和结果等方面的作用。
本文将详细介绍 "by" 的几种常见用法，以帮助读者更好地理解并灵活运用这个词组。
二、表示方式1. "by + 动词-ing"在这种情况下， "by"表示某种行为或动作的方式或手段。
例如：- By swimming in the pool, she keeps fit and healthy. (通过在游泳池里游泳，她保持健康身体)- He solved the puzzle by thinking creatively. (他通过创造性思考解决了这个难题)2. "by + 副词/形容词"这种结构通常描述某个动作或状态是如何得以实现的。
例如：- She won the race by running fast. (她通过跑得快赢得了比赛)- He impressed his boss by working hard. (他通过努力工作给老板留下了深刻印象)3. "by means of"当我们想要表达某个行为或方法来实现目标时，可以使用 "by means of" 这个短语。
例如：- We can achieve success by means of careful planning and hard work. (通过细致的计划和努力工作，我们可以取得成功)- He solved the problem by means of advanced technology. (他通过先进的技术解决了这个问题)三、表示结果1. "by + 名词/代词"在这种结构中， "by" 表示某个行为或手段导致的结果。
by的所有用法
by的所有用法介词by可以用来表示方位、时间、手段等,其用法在考试中曾多次出现。
by的所有用法有哪些呢?本文是店铺整理by的所有用法的资料，仅供参考。
by的所有用法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.到十岁时,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。
词by可以用来表示方位、时间、手段等,其用法在高考中曾多次出现。
下面结合高考试卷和其它一些例句做一下归纳：一、by+地点名词。
介 词 的 种 类 及 用 法(三)：表示时间的介词(for、during、through、by、till,until)
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。
Unit 12【单元知识点复习】九年级英语全一册单元复习(人教版)
单元复习12 Unit 12 Life is full of the unexpected
词汇
单词
1._b_a_c_k_p_ac_k_背包；旅行包 2._o_v_e_r_sl_e_e_p 睡过头 3.__m__is_s___错过；未得到 4._u_n_e_x_p_ec_t_ed 出乎意料的；始料不及的 5.__b_l_o_c_k__街区 6.__w_o_r_k_e_r_工作者；工人 7.__s_ta_r_e___ 盯着看；凝视8._d_is_b_e_l_ie_f_不信；怀疑 9.__a_b_o_v_e__在上面；向上面 10.___b_u_rn___着火；燃烧 11.__a_l_iv_e___ 活着；有生气的12.___t_i_ll___ 到；直到 13.__w__e_st___向西；朝西adj. 向西的；西部的n. 西；西方 14.__c_r_e_a_m__奶油；乳脂 15.___b_o_s_s__老板；领导 16.___p_ie____果馅饼；果馅派 17.__c_o_u_rs_e__课程 18.__b_e_a_n___豆；豆荚 19.__m_a_r_k_e_t _市场；集市
单词
Ⅱ. 用括号内所给动词的适当形式填空。 11. We had _p_a_in_t_e_d__(paint) the house before we m__o_v_e_d___(move) in. 12. Tom said heh_a_d__re_a_d__(read) the book twice. 13. Most of my good friends _h_a_d_l_e_ft__(leave) when I _a_rr_i_v_e_d__(arrive) at the party. 14. By the time I _w_a_lk_e_d___(walk) into the store，someone _h_a_d_b_o_u_g_h(bt uy) the jeans I wanted. 15. My mother h_a_d__c_o_m_e_(come) back from the market when I ___g_o_t___(get) up.
“by+时间”用法
“by+时间”意为“不迟于(=not later than)”；“一到(=as soon as)”；“当某时候到了[=when (the time in dicated ) comes]”；“到…时为止”等。
时间上有过去、现在和将来之别。
主动词本身有动作与状态之分，其时态可为一般式、完成式、进行式或完成进行式。
现分述如下：1、“by＋时间”与动作性强的动词连用时，主句多用于完成式。
by后的时间可指现在、过去或将来时间点。
如：By the time he was fourteen year sold，he had learned maths all by himself.到14岁的时候，他就已经自学了数学。
I shall have finished it by the time you come back.你回来以前我就把它做完了。
By the end of the match, they had kicked two goals and we had kicked four.比赛结束时，他们踢进了2分我们踢了4分。
They must have finished their work by this time.他们现在一定已经完成工作了。
但是，上述情况中当时间为将来时，主句动作发生在从句动作之后时，主句动词可用一般时态。
如：If you're not better by then, I'll take you to see the doctor.如果到那时还不好些，我就带你去看病。
Can you finish this by tomorrow? 在明天以前你能做完这件事吗？间或有用进行式的。
如：By the end of the first week the head of the departmentwas saying very nice things about me. 第一周末时系主任给我多多美言了几句。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
• 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
• 1. By the time you arrive home， I_____， so please don’t make any noise when you come in. A. shall have been sleeping • B. shall have slept • C. shall sleep D. shall be sleeping 2. By the time you arrive in London， we ___in Europe for two weeks. A. shall stay B. have stayed • C. will have stayed D. have been staying • 3. Hurry up！ By the time we get to the church， the marriage service_____. A. had started B. will have started • C. has started D. must have started
• 4. （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 • ［解析］ 答案为C。 当我与祖母通电话时， 她听起来很虚弱，但是当我们挂断电话的时候， 她的声音已经充满活力。 by the time后的主句 用了过去完成时，因此空档处最好用一般过去时。
By the time
• 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 was fourteen years old，Einstein had learned advanced mathematics all by himself. • 到14岁的时候，爱因斯坦就已经自学完了高等数学。 By the time he returned home，the rain had stopped. 等他回到家时，雨已经停了。 • By the time I got to the station，the train had already gone。 By the time l got home，they had already left。 • By the time I received his letter, he had left Shanghai. • By the time he was 12, he had traveled to more than 30 countries to get his diseases cured.
• ［解析］ 答案为C。 主句用了一般将来时，根据时态 一致原则排除B和D。 根据句意“截止到他意识到的时 候，他已经走进了一个陷阱”可知，空档最好填现在完 成时。
• 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 John finishes his homework， his classmates shall have left to play football. • 到约翰做完作业时，她的同学将已离开去伦踢足球了。 By the time you get back，I shall have finished the work. • 到你回来时，我将已经把活做完了。 By the time I get home，they will have left。 • By the time I graduate next year, I will have lived here for 5 years. • 到明年毕业时，我就在这里呆了五年了。 • By the time the Olympic Games start, we will have finished/ finish the construction. 我收到他信时，他已经离开上海了.
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. 登上顶端 时，他气喘吁吁。 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 he realizes he has walked into a trap, it'll be too late for him to do anything about it 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。
• 5. （2011辽宁卷） By the time Jack returned home from England， his son _____from college. A. graduated B. has graduated • C. had been D. had graduated
• ［解析］ 答案为D。 截止到Jack从英国返家， 他的儿子已经大学毕业了。回家用了一般过去时， 大学毕业发生在过去的过去，故用过去完成时。
• By the time we arrived the meeting was over. 我们到达时，会议已结束了。
• The injured man was fairly far gone by the time the ambulance arrived. • 救护车到时那伤者已生命垂危.
• （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 • ［解析］ 答案为B。 进门之前电话铃一直在响， 但当我进门的时候，它停止了。 but前面分句的动作是 先发生的，而且延续的时间较长，故用was ringing。
• By trown his older brother. • 他十岁的时候就已经长得比他哥哥高了。
• 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 • ［解析］ 答案为C。 从gets home可知 Jane还未回到家，等到Jane在将来的某个时间 回到家以前，她的aunt将已经赴伦敦参加一个会 议去了，故用将来完成时。 • 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
• （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