复习专题状语从句专项练习题及答案

复习专题状语从句专项练习题及答案
复习专题状语从句专项练习题及答案

【英语】英语状语从句专项训练100(附答案)

【英语】英语状语从句专项训练100(附答案) 一、初中英语状语从句 1._______it’s a public holiday today, some firefighters in our city are still on duty. A.Although B.Once C.If 【答案】A 【解析】 【详解】 句意“尽管今天是公共节假日,但是我们城市的一些消防员仍然在岗位值班”。A.尽管(引导让步状语从句);B.一……就……(引导时间状语从句);C.如果(引导条件状语从句)。根据句意可知,今天是公共假日,本应该休息,但是消防员仍然在岗值班,表示让步,故选A。 2.---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A.since B.unless C.when D.until 【答案】B 【解析】 试题分析:句意:----你想要明天和我们一起去划船吗?好的,如果我不忙我就去。A自从;B如果不;C当……时候;D直到……才。根据句意,应选B。 考点:考查连词。 3.She was happy to get a gift from her friend, _________it was only a card. A.if . B.unless C.though D.because 【答案】C 【解析】 【详解】 句意:她很高兴从她的朋友那里得到一份礼物,虽然只是一张卡片。考查连词辨析。if如果,表条件;unless除非,表条件;推后尽管,表让步;because因为,表原因。本句是让步状语从句,根据句意结构和语境,可知选C。 4.You are sure to fail the exam ________ you study hard. A.if B.unless C.since D.that 【答案】B 【解析】 试题分析:句意:如果你不努力学习,你一定会考试不及格的。A.if如果;B. unless如果不;C. since自从;结合句意,故选B。 考点:考查连词的用法。 5.Mrs. Smith explained the problem clearly _______ all of us could understand her.

状语从句练习题及答案)

状语从句练习题 1.I’ll let you know ____ he comes back. A. before B. because C. as soon as D. although 2. She will sing a song ____ she is asked. A. if B. unless C. for D. since 3. We will work ____ we are needed. A. whenever B. because C. since D. wherever 4. Read it aloud _____ the class can hear you. A. so that B. if C. when D. although 5._____ you go, don't forget your people. A. Whenever B. However C. Wherever D. Whichever 6. It is about ten years _____ I met you last. A. since B. for C. when D. as 7. They will never succeed, _____ hard they try. A. because B. however C. when D. since 8. _____ still half drunk, he made his way home. A. When B. Because C. Though D. As 9. _____ she was very tired, she went on working. A. As B. Although C. Even D. In spite of 10. Busy _____ he was, he tried his best to help you. A. as B. when C. since D. for 11. I learned a little Russian _____ I was at middle school. A. though B. although C. as if D. when 12. _____ we got to the station, the train had left already. A. If B. Unless C. Since D. When 13. _____ the rain stops, we' 11 set off for the station. A. Before B. Unless C. As soon as D. Though 14. She was _____ tired _____ she could not move an inch. A. so, that B. such, that C. very, that D. so, as 15. We didn’t go home _____ we finished the work. A. since B. until C. because D. though 16. I'll stay here _____ everyone else comes back. A. even if B. as though C. because D. until 17. Although it's raining, _____ are still working in the field. A. they B. but they C. and they D. so they 18. Speak to him slowly _____ he may understand you better. A. since B. so that C. for D. because 19. You'll miss the train ______ you hurry up. A. unless B. as C. if D. until 20. When you read the book, you' d better make a mark _____ you have any questions. A. at which B. at where C. the place D. where 21. We'd better hurry ______ it is getting dark. A. and B. but C. as D. unless

八年级状语从句(一)

状语从句精讲 状语从句在复合句中作状语,修饰动词、形容词或副词等。状语从句可以表示时间、条件、原因、地点、目的、结果、让步、方式、比较等意义。 知识梳理:提纲挈领,抓住重点和难点! 各类状语从句连接词(短语)一览表: 时间 when, while, as, as soon as, since, until, after, before I will telephone you as soon as I arrive in Shanghai. She wants to be a teacher when she grows up. My mother came in while I was reading last night. 条件 If, unless We will visit the museum if it doesn’t rain tomorrow. Our sports meeting will continue unless it rains tomorrow. 原因 As, because, since, now that Tom didn’t go to school today because he was ill. Since he will not do it, I have to ask someone else. We have to go as it’s getting late. The day breaks, for the birds are singing. Now that you are free today, you may have a rest at home. 地点 Where I found the book where you left it. 目的 So that, in order that Read slowly so that everyone can follow you. 结果So that, so…that, such…that She was so angry that she couldn’t say a word. She is such a lovely girl that we all like her. 让步 though, although, even if, however Though he was very tired, he still worked hard. 方式 As I did as you told me. 比较than, (not)as…as, The work isn’t as easy as I thought. The more you exercise, the healthier you will be. 易混词解析:举一反三,学的更轻松! 1. while, when, as的区别: when既可以指"时间点",与瞬间动词连用,也可以指"时间段",与延续性动词连用(=while)。如: When he came in, his mother was cooking. When (While) we were at school, we went to the library every day. While表示时间段,因此,while 从句的谓语动词要用延续性动词。如: Please don't talk so loud while others are working. As与when用法相似,但着重强调主句动作与从句动作同时发生,有"随着……"或"一边……一边……"之意。如: As you get older, you get more knowledge.随着年龄的增长,你获得的知识就越多。 2.Because, as, since 的区别: Because用于表示直接原因,回答why提出的问题,语气最强since表示显然的或已知的理由或事实,常译成"既然",语气比because弱,主句的内容是全句句意的重心所在。 as 引出的状语从句,一般位于主句之前,表示的原因语气最弱。如:

中考英语状语从句专项训练及答案及解析

中考英语状语从句专项训练及答案及解析 一、初中英语状语从句 1.It’s much easier for us to become friends________ we share similar interests. A.unless B.when C.even though D.so that 【答案】B 【解析】 【详解】 句意:当我们分享相似的兴趣爱好时,对于我们来说成为朋友更加容易一些。 考查连词。unless如果不,除非,引导条件状语从句;when当……时候,引导时间状语从句;even though尽管,引导让步状语从句;so that以便,因此,结果,引导目的或结果状语从句。根据句意可知此句表示时间,故填when,选B。 2.---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A.since B.unless C.when D.until 【答案】B 【解析】 试题分析:句意:----你想要明天和我们一起去划船吗?好的,如果我不忙我就去。A自从;B如果不;C当……时候;D直到……才。根据句意,应选B。 考点:考查连词。 3.I still remember my first teacher________we haven't seen each other for many years. A.for B.because C.since D.though 【答案】D 【解析】 试题分析:句意:尽管我们很多年没有见过面了,但是我仍然记得我的第一位老师。此题考查连词,A因为;B因为;C自从;D尽管。根据句意,应选D。 考点:考查连词。 4.—The novel seems a little boring. —You won’t enjoy it _______________ you put your heart into it. A.when B.if C.after D.unless 【答案】D 【解析】 试题分析:句意:--这部小说似乎有点儿无聊。--如果你不用心读的话,你不会享受到这本书。when,当……的时候;if如果;after在……之后;unless,如果不,除非。结合句意,故选D。 考点:考查连词的用法。

状语从句40题附答案

状语从句40题附答案 1. —What are you going to do this summer —I'm going to visit the Great Wall __________ the school term ends. A. so that B. as soon as C. before D. in order that 2. My English is very poor. I can't learn it well __________ you help me. A. if B. unless C. while D. when 3. I was told ______ Bill Gates was thirteen he began to play with computers. A. that how B. how that C. when that D. that when 4. —Do you have any problems if you ________ five minutes to read —Well, I'm thinking about the new words. There are too many. A. give B. gived C. are given D. were given 5.His father has worked for 17years in this factory __________ he came here in 2000. A. since B. for C. when D. how long 6. This lesson was so boring ____ some students began to sleep in class. A. that B. and C. when D. how can make progress in English __________ you try your best. A.before B. unless C. whether D. as long as 8. ________ he has little knowledge, the old worker has a lot of experience. A. If B. Because C. Although will lend you my computer you promise to return it on time. A. since C. on condition that order that 10. A true friend can see the pain in your eyes _____ everyone else believes the smile on your face. A. while B. because C. before D. until 11. The movie is a great success, __________ it's not very good. A. so B. but C. although D. and 12. Jack was’t saying anything,but the teacher smiled at him he had done something very clever. case if 13. In the exam, the ________ you are, the _______ mistakes you will make. A. careful; little B. more careful; fewest C. more careful; fewer D. more careful; less 14. This is an interesting book, I’ll buy it, . much may it cost B. however it may cost

初中条件状语从句(附答案)(最新整理)

条件状语从句讲解及练习 一、考点归纳 由连接词if或unless引导的状语从句叫做条件状语从句。(注意:在含有条件状语从句 的复合句中,如果主句是一般将来时态,从句要用一般现在是“主将从现原则”。通常译作“假如,如果,除非”。引导词: 常用引导词: if , unless 1.if 引导词用法 学习" if " 引导的条件状语从句的用法,现在总结一下: if 条件句不一般, 几个要点记心间; 条件句,放在前, 逗号要放句中间。 条件句表可能,主句多用将来时; 条件句表事实,主句常用现在时。 if 引导的条件句有:真实条件句和非真实条件句两种: (1)真实条件句:表示在某种条件下某事很可能发生。Eg: a)If you ask him, he will help you. 如果你请他帮忙,他会帮你的。 b)If you fail in the exam, you will let him down. 如果你考试不及格,你会让他失望 的。 c)If it rains tomorrow, we won’t go on a picnic. 如果明天下雨,我们就不去野餐。 注意:切记紧跟着if的那句话是从句。 (2)非真实条件句是虚拟语气的一种,表示与事实相反,不可实现的条件或根本不可能存在的条件,也就是一种虚拟的条件或假设,从句多用一般过去时或过去完成时。 Eg: a)If I were you, I would invite him to the party. 如果我是你,我会邀请他参加聚会。 b)I would have arrived much earlier if I had not been caught in the traffic. 如果没有堵 车,我会到的早一点儿。 c)If I were you, I would go with him. 如果我是你,我会和他一起去的。 2. unless引导词用法 (1)固定搭配: unless = if...not 除非,若不,除非在……的时候。Eg: a)You will fail to arrive there in time unless you start earlier. =If you don’t start earlier, you will fail to arrive there in time. 如果你不早点动身,你就不能及时赶到那儿。 b)Unless it rains, the game will be played. =If it dosen't rain,the game will be played. 除非下雨,比赛将照常进行。

八年级状语从句练习【52道选择题】

状语从句练习 选择题 ( )1. --What is our head teacher like, do you know? --Oh, he is very kind he looks very serious. A. because B. though C. if D. when ( )2. It’s snowing outside! Put on more clothes, you may catch a cold. A. and B. but C. or D. though ( )3. --May I surf the Internet now? --No, you have finished doing the dishes. A. unless B. if C. because D. when ( )4. They knew nothing about it his sister told him. A. since B. if C. until D. after ( )5. My brother was taking a bath the UFO landed on the street. A. until B. while C. when D. before ( )6. --Dad, physics is too boring. --Work hard, you’ll find it interesting. A. or B. and C. but D. unless ( )7. The party didn’t start all the guests arrived. A. when B. while C. after D. until ( )8. --When are you going to tell the bad news to Cindy? -- she comes back. A. Unless B. As soon as C. Since D. If ( )9. She is careful that she seldom makes mistakes in the test. A. so B. such C. too D. very ( )10. --What are the students doing? --Girls are flying kites boys are playing basketball. A. when B. after C. while D. as soon as ( )11. We should help each other, learn from each other. A. neither; nor B. not; but C. not only; but also D. either; or ( )12. You must leave here now you can get to the airport on time. A. because B. though C. so D. so that ( )13. He can’t understand me I have explained it to him many times. A. if B. because C. though D. and ( )14. We won’t wait for you you come here on time. A. if B. unless C. when D. until ( )15. The problem is difficult, he has worked it out. A. however B. yet C. while D. and ( )16. That was our first lesson, she didn’t know all our names. A. for B. but C. so D. or ( )17. I like pop music, but my father my mother likes it. A. both; and B. either; or C. neither; nor D. not only; but also ( )18. After climbing the hill, I was tired go home on foot. A. too; to B. so; that C. such; that D. quiet; that

最新人教版中考英语专题训练 状语从句

最新人教版中考英语专题训练状语从句 一、初中英语状语从句 1.Mrs. Smith explained the problem clearly _______ all of us could understand her. A.until B.although C.so that D.as soon as 【答案】C 【解析】 【详解】 句意:Smith夫人清楚地解释了这个问题,以至于我们所有人都能明白她。until直到…时候;although尽管,虽然;so that以至于,为的是;as soon as一…就…。根据句意可知,空后all of us could understand her表示前面explained…clearly的目的,故用so that引导目的状语从句,选C。 2.I will go to the English club tomorrow I am too busy. A.since B.if C.unless D.until 【答案】C 【解析】 【详解】 句意:明天我将会去英语俱乐部,除非我太忙。since自从;if如果;unless除非,如果不;until直到…时候。根据句意可知,这里表示的意思是“如果我不忙,我会…”,故应选C。 3.They will lose the game _______ they try their best. A.unless B.once C.since D.after 【答案】A 【解析】 【详解】 试题分析:句意:他们会输掉比赛的,除非他们尽自己最大的努力。lose the game 输掉比赛,try one’s best 尽最大的努力。 A. unless 除非; B. once 一次;C. since 因为; D. after 在…之后,根据题意可知此句是unless引导的条件状语从句,故选A。 4.Betty you the answer as soon as she works it out later. A.tells B.told C.will tell D.is telling 【答案】C 【解析】 【详解】 句意:贝蒂之后一算出来,她就会告诉你答案。 考查时态。tells告诉,一般现在时;told一般过去时;will tell一般将来时;is telling现在进行时。as soon as表示“一……就……”。由as soon as引导的从句需要用一般现在时态代替将来时态,可知主句时态是一般将来时。故选C。

条件状语从句

初中英语――条件状语从句 一.if 引导的条件状语从句 引导条件状语从句最常用的连词是if,常见的if条件状语从句表示在某条件下,某事很可能发生,条件是可能存在的,主句中某种情况发生的概率也是很高的。如: If you ask him,he will help you.如果你请他帮忙,他会帮你的。 If you fail in the exam,you will let him down.如果你考试不及格,你会让他失望的。 If you have finished the homework,you can go home.如果你作业做完了就可以回家了。 另外,if从句还表示不可实现的条件或根本不可能存在的条件,也就是一种虚拟的条件或假设。从句多用一般过去时或过去完成时,表示对现在或过去的一种假设。如: If I were you,I would invite him to the party.如果我是你,我会邀请他参加聚会。 I would have arrived much earlier if I had not been caught in the traffic.要不是交通堵塞,我本会来得早一些。 另外你还要注意if 条件句的时态搭配 1.if从句用一般现在时,主句用一般将来时 If he runs, he’ll get there in time. 如果他用跑的,他就会及时赶到那儿。 The cat will scratch you if you pull her tail. 如果你拉猫的尾巴,它就会抓你。 2.if从句用一般现在时,主句用may/might/can If the fog gets thicker, the plane may/might be diverted. 如果雾在大一些,飞机可能就会改在别的机场降落。 If it stops snowing, we can go out. 如果雪停了,我们就可以出去。 3.if从句用一般现在时,主句用must/should If you want to lose weight, you must/should eat less bread. 如果你想减肥,你必须少吃面包。4.if从句用一般现在时,主句用一般现在时 If you heat ice, it turns to water. (也可用will turn)如果把冰加热,它就会化成水。 5.if从句用现在进行时,主句用一般将来时 If you are looking for Peter, you’ll find him upstairs. 如果你是在找彼得,上楼就会找到他。6.if从句用现在完成时,主句用一般将来时 If you have finished dinner, I’ll ask the waiter for the bill. 如果你吃完了,我就叫服务生来算账注意: 学习" if " 引导的条件状语从句的用法,现在总结一下: if 条件句不一般,几个要点记心间; 条件句,放在前,逗号要放句中间。 条件句表可能,主句多用将来时; 条件句表事实,主句常用现在时。 在if 引导的条件状语从句中,如果从句谈论的是一个有可能发生的事实及其产生的相关的结果,主句用一般将来时态,从句用一般现在时态。如: We can walk there if we can't find a bus. If it rains tomorrow, we will not go to the zoo. What will you do if you find a panda in danger? 如果if 条件句谈论的是重复发生和预示要发生的情景和事件,则主从句大多用一般现在时态。如: If bears are in danger, they attack people. 在if 引导的条件状语从句中,if 和条件句位置灵活,可直接放在主句后面,若if 条件句放句首,从句后面要加逗号,和主句隔开。还要注意前后时态一致原则

八年级上册条件状语从句

八年级上册条件状语从句 单选题 1. — What are you going to do this Saturday? — I'm going to climb Mount Tai it doesn't rain. A. so B. if C. until 2. T hey will have a trip to the Summer Palace if it next Sunday. A. doesn't rain B. won't rain C. didn't rain 3. — Will you go to the movies with me? — If I finish my homework, I _______ with you. A. go B. will go C. going 4. I f she goes to the party, . A. so he will B. so will he C. so does he 5. you eat less sugar, you will lose . A. If; heavy B. Unless; heavy C. If; weight 6. I f it tomorrow, we to climb mountains. A. doesn't rain; go B. won't rain; will go C. won't rain; go 7. — Have you decided when you a new car? — If I one, I will hold a party to celebrate it. A. buy; will buy B. will buy; buy C. buy; buy 8. — How do you spend your weekends? — If I _______ free, I _______ to the cinema with my good friend. A. will be; will go B. am; will go C. am; go 9. — Do you know if he back tomorrow? — Sorry, I don't know. If he back, I will tell you at once. A. comes; comes B. comes; will come C. will come; comes 10. You can't believe how terrible the fire is you see it with your own eyes. A. though B. because C. unless 11. — Our holiday cost a lot of money. — Did it? Well, it doesn't matter you enjoyed yourselves. A. so that B. as long as C. unless 12. Milk goes bad quickly in summer it is in a fridge (冰箱). A. if B. because C. unless 13. You won't feel happy at school you get on well with your classmates. D. because D. isn't raining D. went D. so he does D. Unless; weight D. doesn't rain; will go D. will buy; will buy D. will; will go D. will come; will come D. since D. as soon as D. when 1

中考专项训练状语从句专项练习(附答案)

中考专项训练状语从句专项练习(附答案) 一、初中英语状语从句 1.When you are in your school dining hall during lunchtime, you may feel lonely _______ you can find someone to have lunch with. A.if B.unless C.after D.because 【答案】B 【解析】 【分析】 【详解】 句意:当你在学校食堂吃午饭的时候,你可能会感到孤独,除非你能找个人一起吃午饭。考查连词用法辨析。if如果,unless除非,都表条件;after表时间,because表原因。本句前后句是条件关系,可排除CD两项。根据句意可知if不合句意,故选B。 2.---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A.since B.unless C.when D.until 【答案】B 【解析】 试题分析:句意:----你想要明天和我们一起去划船吗?好的,如果我不忙我就去。A自从;B如果不;C当……时候;D直到……才。根据句意,应选B。 考点:考查连词。 3.She eats ice-cream a lot, ________it isn't good for her. A.after B.until C.because D.although 【答案】D 【解析】 【详解】 句意:她经常吃冰淇淋,虽然这对她不好。考查连词辨析。A. after在……以后,表时间;B. until直到,表时间;C. because因为,表原因;D. although尽管,表让步。本句前后是让步关系,需用although连接;根据句意语境,可知选D。 4.--- I wonder if Tina to China next week. --- If it ,she will come. A.will come;won’t rain B.comes;doesn’t rain C.comes;won’t rain D.will come;doesn’t rain 【答案】D 【解析】 【详解】 句意:——我想知道蒂娜下周是否会来中国。——如果不下雨,她就会来。根据语境推测

条件状语从句三“注意”

个人收集整理仅供参考学习 条件状语从句三“注意” 【热身训练】 A. 用所给动词的正确时态填空。 1. If tigers (live) in the wild, they will hunt for food on their own. 2. If it (snow) tomorrow, I (not fly) to Guangzhou. 3.Your parents will be very happy if you (pass) your exam. 4. If you (go) to bed earlier, you (not feel) tired in the morning. 5. If we (not protect) wild animals, there (not be) wild animals any more. B. 改写同义句,每空一词。 6. If you try again, you’ll work out the problem. again,you’ll work out the problem. 7. Get up quickly, or you will miss the early bus. you up quickly, you will miss the early bus. 8. If there is no air, none of us can live. None of us can live . 【融会贯通】 一、位置 条件状语从句通常由if引导,if的含义是“如果、假如”。从句的位置灵活,可放在主句前面或后面。如: If they are in danger, bears will attack people. = Bears will attack people if they are in danger. 如果熊处在危险中,它们会袭击人的。 二、时态 if条件从句中,主句常用一般将来时,从句常用一般现在时代替将来。如: If I’m free tomorrow, I’ll come to see you. 如果我明天有空,我会来看你。 You will find out its meaning if you look it up in the dictionary. 如果你查字典,你将会查到它的含义。 三、转换 在英语口语中,我们常用“祈使句+ and / or + 陈述句”与if条件句转换。如: If you work harder, you’ll pass the English exam. 如果你再努力些,你就会通过英语考试。 1 / 1

八年级下册-状语从句讲解

Adverbial Clause(状语从句) 1状语从句的种类 用来修饰谓语动词、其它动词、定语、状语或整个句子的从句叫做状语从句。状语从句可分为: 1.时间状语从句;(adverbial clause of time) 2.地点状语从句;(adverbial clause of place) 3.原因状语从句;(adverbial clause of cause) 4.条件状语从句;(adverbial clause of condition) 5.目的状语从句;(adverbial clause of purpose) 6.让步状语从句;(adverbial clause of concession) 7.比较状语从句;(adverbial clause of comparison) 8.程度状语从句;(adverbial clause of degree) 9.方式状语从句;(adverbial clause of manner) 10.结果状语从句。(adverbial clause of result) 2状语从句的时态特点 一般情况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”,用“现在完成时”表示“将来完成时”。例如:I will call you as soon as I arrive in Beijing. 我一到北京就给你打电话。(这是由as soon as引导的时间状语从句,从句中的谓语动词arrive是一般现在时,表示一般将来时,决不可用will arrive)As soon as I have finished this work, I will go home. 我一完成此工作,就回家。(从句中的谓语动词用现在完成时have finished,表示将来完成时,决不可用will have finished)If he comes back, please let me know.如果他回来了,请通知我。(从句中的谓语动词用comes back,表示一般将来时,决不可用will come back) 3时间状语从句(adverbial clause of time) 1.由when, while, as引导的时间状语从句。例如:When you think you know nothing, then you begin to know something.当你以为自己一无所知的时候,你就是在开始知道一些事物了。 When truth is buried under the ground it grows, it chokes, it gathers such an explosive force that on the day it bursts out , it blows up everything with it.当真理被埋在地下的时候,它在生长,它感到压抑,它蓄存着这么一种爆炸性力量,一旦冒出,它就会炸破一切!Strike while the iron is hot. 趁热打铁。Will you watch my clothes while I have a swim. 我游泳的时候,请你照看一下我的衣服。You can feel the air moving as your hand pushes through it. 当你的手在空气中挥动的时候,你就能感觉到空气在流动。Our headmaster laughed as she spoke.我们的校长边谈边笑。 when, while和as的区别:when引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词。并且when有时表示“就在那时”。例如:When she came in, I stopped eating.她进来时,我在吃饭。(瞬时动词) When I lived in the countryside, I used to carry some water for him.当的住在农村时,我常常为他担水。(延续性的动词)We were about to leave when he came in.我们就要离开,就在那时他进来了。 While引导的从句的谓语动作必须是延续性的,并强调主句和从句的动作同时发生(或者相对应)。并且while有时还可以表示对比。例如: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) I like playing football while you like playing basketball.我喜欢踢足球,而你喜欢打篮球。(对比) As表示“一边……一边”,as引导的动作是延续性的动作,一般用于主句和从句动作同时发生;as也可以强调“一先一后。例如:We always sing as we walk.我们总是边走边唱。(as表示“一边……一边”) As we was going out, it began to snow.当我们出门时,开始下雪了。(as强调句中两个动作紧接着先后发生,而不强调开始下雪的特定时间) 2.由before和after引导的时间状语从句。注意before引导的从句不再用否定式的谓语,并且当before引导的从句位于主句之后,有时译成“就,才”。还要注意主句和从句之间的时间关系。当主句用将来时,从句总是用现在时;如果before引导的从句谓语用的是过去时,则主句动词多用过去完成时,这样以便体现动作发生的先后。After表示主句动作发生在从句动作之后。主句和从句的动作的时间关系正好与before引导的从句相反。例如:It will be four days before they come back. 他们要过四天才能回来。Einstein almost knocked me down before he saw me.爱因斯坦几乎把我撞倒才看到我。 My father had left for Canada just before the letter arrived.我父亲恰好在信到之前去加拿大了。 They had not been married four months before they were divorced. 他们结婚还不到四个月就离婚了。

相关文档
最新文档