《高考英语一轮复习 （命题分析+名师精讲+强化训练）语法专题 介词、连词和状语从句指导课件 新人教版》由会员分享，可在线阅读，更多相关《高考英语一轮复习 （命题分析+名师精讲+强化训练）语法专题 介词、连词和状语从句指导课件 新人教版（94页珍藏版）》请在金锄头文库上搜索。
1、语法突破篇语法突破篇第十节介词、连词和状语从句第十节介词、连词和状语从句【命题分析】介词和连词虽然都属于虚词，但在英语学习中非常重要，也是每年高考的必考项目。高考主要考查介词在具体语境中的应用，介词与其他词性的搭配辨析，介词和连词的一些习惯用法和固定搭配等。状语从句是每年必考的题目之一，考查的重点仍然是考生容易混淆的近似连词的用法，试题的结构越来越复杂，设题的角度也趋于多样化。【名师精讲】一、介词.表进行意义的四类介词短语1at名词He was at dinner when I came.我来时他正在吃饭。She stayed at work when everybody else had g
2、one home.别人都回家了，她却还在工作。类似的还有：at play在玩耍at lunch在吃午饭at rest在休息 at table在吃饭at school在上学 at church在做礼拜at peace在和平时期 at press在排印有些结构可能带有冠词或物主代词：at ones meals在吃饭 at ones study在学习at the piano在弹钢琴 at the end(of).在结束时at the desk在读书2in名词Hes been in politics all his life.他一生从政。Her husband was in business.她丈夫是
3、经商的。He looks tired.He is in need of a rest.他看起来累了，需要休息一下。类似的还有：in action在运转 in progress在进行中in operation在运行中有些结构可能带有冠词：in the course of.在过程中in the act of.正在做时3on名词Are you here on business or for pleasure?你是来办事还是来玩？The typist is away on holiday this week.打字员本周去休假了。The man on watch didnt notice the dan
4、ger.值班的人没有注意到这危险。类似的还有：on guard在执勤 on leave在休假on strike在罢工 on sale出售on loan(画或书等)暂借(的)有些结构可能带有冠词：on the march在行军 on the watch注意，提防on the increase正在增加 on the go十分活跃，非常忙碌on(the)air正在广播4under名词(名词前有时有冠词修饰)Dont worry.Everything is under control.别担心，一切都在控制之中。That has no relation to the matter under discu
5、ssion.那和讨论的问题没有关系。类似的还有：under development在发展中 under observation在观察中under test在被测试 under construction在建设中under fire在炮火中under examination在检查(调查)中under consideration在考虑中under repair在修理中.原因介词词组because of，due to，thanks tobecause of因为，由于，通常作状语，位于句首或句尾。due to由于，因为，通常作表语。thanks to幸亏，多亏，既可用于褒义，又可用于贬义，多用于句首。如
6、：The sports meet will be put off till next Saturday because of the heavy rain.由于大雨这次运动会将推迟到下星期六举行。His illness was due to smoking and drinking.他的病是由于吸烟喝酒引起的。.of抽象名词形容词ofgreat/much抽象名词very形容词；ofno抽象名词not形容词。如：It is of great/much value.It is very valuable.它很有价值。这种表达法表示结果，用作状语，位置前、中、后皆可。为了强调，可在前面加much，意
7、为“使某人的是”。如：Much to my surprise，he left without a word.使我非常吃惊的是，他没说一句话就离开了。.几个常考介词1over可表位置，意为“在上方，越过；遮住，盖住”，也可表时间，意为“在期间，(多年)以来”等，它还有“在(问题)上，对(某事)”等引申意义。如：You cant wear a blue jacket over that shirtitll look terrible.你不能在那件衬衣外面再穿上蓝色的夹克太难看了。We had a pleasant chat over a cup of tea.我们一边喝茶一边愉快地交谈。We he
8、ard it over the radio.我们从广播中听到了它。2by的主要意思有“在旁，靠近；乘(车、船等)；不迟于；到为止；被，由；根据，按照(关系)；通过方式”等，还可以用来表示增加或减少的程度。by构成的常见短语有：by and by不久，很快 by and large大体上by oneself单独 by the way顺便说说by far得多，最 by chance碰巧by accident偶然地 by means of借助by no means绝不，一点也不 by mistake错误地The water in the river rose by two meters.河水上涨了两
9、米。He is an Englishman by birth.他在血统上是英国人。3with可以用来表示“带有，拥有；随着；就来说；用，以；和，与；对于，关于”等意思。with还可用来表示原因。如：He turned red with anger.他气得脸变红了。The problem with looking into space from the earth is that there is a lot of dust in the earths air.从地球上观察太空存在这样一个问题，就是地球的大气中有大量的尘埃。4beyond表示“(时间)过了，比晚，迟于；(位置)在那边，超出之外；
10、(范围)超过，为所不及，超出的范围”等意思。如：They arrived beyond nine oclock.他们过了9：00才到。The book is beyond me.这本书我看不懂。Tom is far beyond his elder brother in maths.汤姆的数学比他哥哥的好多了。二、连词.并列连词并列(联合)and，both.and.，neither.nor.，not only.but also.，as well as转折(对比)but，while，yet，whereas因果so，for选择or，or else，otherwise，either.or.，rath
11、er than(而不是)并列连词所连接的两个或两个以上的词、词组或句子是并列关系，无主次之分；但可表示转折、因果及选择等意义。如：“I wont go.”“But youve told me you would.”“我不去。”“可是你说了要去的。”My sister is expecting me，so I must be off now.姐姐在等我，我得走了。Both my father and mother are doctors.我父母都是医生。.从属连词状语从句时间连词after，as，before，once，since，till，until，when，while，as soon as
12、，whenever，the moment，the first time地点连词where，wherever方式连词as，as if，as though原因连词considering(that)，now(that)，because，since，as，seeing that结果连词so that，so.that，such.that，in such a way that，with the result that目的连词so that，in order that，in case(that)，lest(that)，for fear that条件连词if，unless，as(so)long as，on c
13、ondition(that)，supposing(that)，provided/providing(that)让步连词though，although，even if/even though，no matter.，however，whatever，while比较连词as，than，as.as.，not so.as从属连词引导的从句在复合句中起辅助和从属的地位，在选择从属连词时，要特别注意主句与从句之间的内在联系，尤其是上下文之间及逻辑方面的必然关系。如：When we are of one heart，everything becomes easy.当我们心齐了，一切就好办了。Everyone
14、didnt stop working though it became dark.虽然天黑了，但大家仍没有停止工作。Take an umbrella with you in case it rains.随身带着雨伞以防下雨。I wont go to the party unless invited.除非被邀请，我是不会去参加晚会的。.某些连词的特殊用法1for是并列连词，它所引出的理由是一种补充说明，语气很弱。其引导的分句不能放在句首。如：He might have gone to bed，for the light went out.他可能已经睡了，因为灯灭了。2though和althoug
15、h引导从句时主句前不能用but。如：Although/Though he was ill，but he went to school.(改正的方法是将but去掉，或将Although/Though去掉。)尽管生病了，但他还是去上学了。3because，as引导原因状语从句时，主句前不能用so。如：As/Because there are no classes tomorrow，so they will go on a picnic.(改正的方法是去掉As/Because或去掉so。)因为明天没有课，所以他们将要去野餐。4当because用来解释或说明某事时，不能用for来代替。why开头的问句
16、要用because来回答，而不能用for。如：Why didnt he come to the meeting yesterday?昨天他为什么没来开会？Because he was ill.因为他生病了。三、状语从句.时间状语从句1when，while与aswhen从句中的动作既可以是持续性动作，也可以是短暂性动作，可用于主句动作和从句动作同时发生或从句动作先于主句动作发生的情境。while从句中动作必须是延续性的，主句动作和从句动作同时发生，从句谓语多用进行时。as表示主句和从句动作交替进行或同时发生，译成“随着；一边一边”。如：When John arrived，I was cookin
17、g in the kitchen.约翰来时，我正在厨房做饭。Dont talk so loud while others are working.别人工作时，不要大声说话。John sings as he works.约翰一边工作，一边唱歌。注意：(1)when还可作并列连词(and at that/this time)，译为“那时/这时”。常用于以下结构：was/were doing.when.was/were about to do sth./on the point of doing sth.when.had(just)done sth.when.(2)while也可作并列连词，意为“而
18、，却”，表对比。如：That region has plenty of natural resources while this one has none.那个地区自然资源丰富，这个地区却一点也没有。(3)while作从属连词，有时还有“虽然，尽管”之意。如：While she is a lovely girl she can be extremely difficult to work with sometimes.她虽然是一个可爱的姑娘，但有时很难与她共事。2as soon as，immediately，directly，instantly，the moment/minute/instan
19、t，no sooner.than，hardly/rarely/scarcely.when.这些从属连词都译为“一就”，表示从句的动作一发生，主句的动作随即就发生。如：The moment the boy saw his mother，he burst into tears.那个男孩一看到妈妈便放声大哭起来。Her parents had no sooner come than she rented a flat.她父母一来，她就租了一套公寓。3before与since(1)before意为“还未就，才，趁，还未来得及”。before从句中谓语一般不用否定式。还可用于It will(not)be
20、时间段before.句型。如：We hadnt run a mile before he felt tired.我们跑了还不到一英里他就累了。It wont be long before we meet again.要不了多久我们就会再次见面。(2)since意为“自从”，它引导的从句中谓语一般用过去时且谓语动词常为非延续性动词，主句中常用完成时。若since从句中的谓语动词是延续性动词，则从动作或状态结束时算起。如：She has been working in this factory since she graduated.毕业后她一直在这个工厂工作。It is three years
21、since he lived here.他不在这儿住已有三年了。4till与until在肯定句中主句谓语动词应是延续性的，而在否定句中主句谓语动词应是非延续性的。till不可位于句首，而until可以。如：You may stay here until the rain stops.你在这儿可待到雨停。He didnt go home until/till he finished the work.他一直到工作完成后才回家。5every time，each time，next time，the first time等名词短语用来引导时间状语从句，表示“每当，每次，下次，第一次”等。如：Ever
22、y time I saw him，I found him to be taller.我每次碰见他，都觉得他长高了。注意：在时间状语从句中，通常要用一般时代替将来时。.条件状语从句引导条件状语从句的从属连词(词组)有：if(如果)，unless(除非，如果不)，as/so long as(只要)，supposing(that)(倘若，假定)，provided(that)(假若，倘若)，providing(that)(假若，倘若)，on condition that(条件是)等。如：You will succeed so/as long as you study hard.只要你努力学习，你一定会
23、成功。Supposing it rains，what shall we do?假如下雨，我们该怎么办呢？I will go providing/provided(that)my expenses are paid.假如我的费用有人代付，我就去。Youll fail in the exam unless you study hard/if you dont study hard.除非你努力学习，否则考试就会失败。.让步状语从句引导让步状语从句的连词有：although，though，even if/even though，as，while(虽然)，whether.or，whoever/no ma
24、tter who，whenever/no matter when，whatever/no matter what，however/no matter how，whichever/no matter which等。1although与though引导的让步状语从句二者可互换，且都可与yet，still或nevertheless连用，但不与but连用。though引导让步状语从句，可使用倒装结构，但although引导的状语从句不倒装。如：He didnt stop working though/although he was ill.他虽然病了，但未停止工作。Young though she i
25、s，she knows how to deal with such a thing.她虽然年轻，但懂得如何处理这件事。(本句中though不可换为although)2as引导的让步状语从句要倒装as比though的语气强，被倒装的部分可以是表语、状语和动词原形。若表语是名词，前置时要省略冠词。如：Try as he might，he couldnt find a job.不管他怎样努力，还是找不到工作。3whatever/no matter what，whoever/no matter who，whichever/no matter which都可以引导让步状语从句，而且whatever，wh
26、oever，whichever还可以引导名词性从句，但no matterwh不能引导名词性从句，只能引导让步状语从句。如：Whatever/No matter what you say，I wont believe you.不管你说什么，我决不相信你的话。You can take whatever you like.喜欢什么你就可以拿什么。.其他状语从句1地点状语从句引导地点状语从句的连词有：where，wherever，everywhere，nowhere等。如：Where there is a will，there is a way.有志者，事竟成。Wherever I went，he f
27、ollowed me.无论我走到哪里，他总是跟着我。注意：where引导的定语从句与状语从句有所不同：你最好在任何有问题的地方做一个标记。如：Youd better make a mark where you have any questions.(地点状语从句)Youd better make a mark at the place where you have any questions.(定语从句)2原因状语从句引导原因状语从句的连词有：because，as，since，now that，seeing that，considering that等。区别连词位置内涵能否回答why问句能否被
28、强调语气because灵活直接因果关系能能最强as灵活双方都知道的原因不能不能稍弱since/now that主句前如：Why were you late?你为什么迟到了？Because I was caught in traffic jams.因为我遇上交通堵塞了。We didnt know what to do as we were just visiting there.我们不知道该怎么做，因为我们当时只是在那里作访问。Now that youve known the truth，I neednt keep it secret.既然你已经知道真相，我就不必保密了。注意：并列连词for也可
29、以表示原因，但for引导的分句对前面的分句起补充说明作用。如：It must have rained last night，for it is wet all over.昨晚肯定下雨了，到处都湿漉漉的。如：I was caught in a heavy rain，so that all my clothes got wet.我被大雨淋了，所以衣服全都湿透了。It was such a cold day that there was nobody in the street.It was so cold a day that there was nobody in the street.天气非常
30、冷，街上没有一个人。4目的状语从句引导目的状语从句的连词有：so that；in order that；for fear that；in case；lest等。(1)so that与in order thatin order that引导的从句可置于主句之前或之后，而so that引导的从句通常置于主句之后。在从句中常与can，may，could，might等情态动词连用。如：John spoke through a microphone so that he could be heard in every room.为了让每个房间的人都能听到他的声音，约翰用麦克风讲话。In order th
31、at we might see the sunrise，we started for the peak early.为了能看到日出，我们早早地出发去山顶。(2)for fear that，in case与lest这三个连词引导的目的状语从句中的谓语常用“(should)动词原形”。如：He wrote the name down for fear that/lest he(should)forget it.他把名字写下来以免忘了。5方式状语从句引导方式状语从句的从属连词(词组)有as，as if，as though。如：You should do as I told you.你应按照我告诉你的
32、去做。6比较状语从句比较状语从句的引导词有：than，as.as，not so/as.as，the more.the more.，as与than连接的比较状语从句常可省去同主句相同的部分。如：I know you better than she(does)我比她更了解你。The more we can do for you，the happier we will be.我们能够为你做得越多，我们越快乐。1(2012北京高考)Do you think this shirt is too tight_the shoulders?AatBonCto Dacross解析：句意：你觉得这件衬衫在肩膀处太
33、紧吗？四个选项都是常见介词。at“在”，on“在之上”，to“关于”，across“穿过，横穿”。across表示的动作是在某一物体的表面进行的，而at和on指在小的位置点上，比如at the corner of the desk在桌角，on the corner of the street在街道拐角处；而题中是衬衫在肩膀处太紧，shoulder应是在一个范围内，故用across，所以D项正确。答案：D2(2012福建高考)Nothing is so easy as_parents to raise their expectations of their children too high.A
34、of BtoCby Dfor解析：句意：对父母而言，没有什么能比把对孩子的期望值提得太高再简单的事情了。本题把介词短语置于句中提高了试题的难度，实际上就是For parents nothing is so easy as.。for parents对父母来说。答案：D3(2012大纲全国高考)I had hardly got to the office_my wife phoned me to go back home at once.Awhen BthanCuntil Dafter解析：句意：我刚到办公室，我妻子就打电话让我立刻回家。“hardly.when.”是固定句型，意为“刚就”。类似的
35、结构还有scarcely.when.，no sooner.than.。以上结构中如果no sooner，hardly，scarcely放在句首时句子用倒装语序。解答本题的关键是句中的副词hardly。答案：A4(2012重庆高考)Coach，can I continue with the training?Sorry，you cant_you havent recovered from the knee injury.Auntil BbeforeCas Dunless解析：句意：教练，我可以继续训练吗？抱歉，你不能，因为你膝盖伤还没有恢复。分析题意可知前后两句有明显的因果关系，故可选C项。as
36、表原因，而A项until，B项before和D项unless都需后句用肯定才可与前句的you cant相符合。答案：C5(2012新课标全国高考)I dont believe weve met before，_I must say you do look familiar.Atherefore BalthoughCsince Dunless解析：句意：我相信我们以前没有见过面，不过我必须说你看上去的确很面熟。“认为我们以前没有见过面”，正常情况下下文应该是看上去不面熟，但本题中下文说看上去面熟，由此可以看出应该选择B项，although 引导让步状语从句。答案：B6(2012福建高考)It i
37、s hard for the Greek government to get over the present difficulties_it gets more financial support from the European Union.Aif BunlessCbecause Dsince解析：句意：希腊政府很难克服目前的困境，除非它从欧盟得到更多的经济支持。B项unless相当于if.not，引导条件状语从句，符合要求。答案：B7(2012陕西高考)Hot_the night air was，we slept deeply because we were so tired afte
38、r the long journey.Aalthough BasCwhile Dhowever解析：句意：尽管夜晚空气燥热，我们仍然睡得很沉，因为长途旅行之后我们是那么疲乏。根据句意可知所填词表示“尽管”之意，且引导让步状语从句，由此排除D项；另外，分析句式可以看出，让步状语从句中提前了表语hot，而although，while引导的让步状语从句不倒装，故排除A，C两项；as引导的让步状语从句必须倒装，即将作表语的形容词或名词、修饰动词的副词或情态动词后的动词原形置于句首。答案：B8(2012辽宁高考)The Well Hotel stands in a quiet place_the mai
39、n road at the far end of the lake.Ato BforCoff Dout解析：句意：Well宾馆坐落在一个安静的地方，在湖的尽头与主干街道相连。以往的介词多是跟动词或者名词搭配进行考查，但是本题考查了off表示“与(某房间、地区、道路等)相连接”的意思。off the main road意为“与主干街道相连”。答案：C9(2012江苏高考)Ones life has value_one brings value to the life of others.Aso that Bno matter howCas long as Dexcept that解析：句意：一个
40、人的生命，只要它给别人的生活带来价值，就有价值。so that以便，结果是，用于引导目的或结果状语从句；no matter how不管怎样，用于引导让步状语从句；as long as只要，用于引导条件状语从句；except that除之外，表示排除。one brings value to the life of others和ones life has value之间为条件与结果的关系，故选C项。答案：C10(2012四川高考)If you happen to get lost in the wild，youd better stay_you are and wait for help.Awh
41、y BwhereCwho Dwhat解析：句意：如果你碰巧在野外迷路了，你最好待在原处等待救援。stay为不及物动词，表示“待在某处”，后需接地点状语，故用where引导地点状语从句。答案：B11(2012湖南高考)_I always felt I would pass the exam，I never thought I would get an A.AWhile BOnceCIf DUntil解析：句意：尽管我一直觉得我会通过考试，但我从未想过我能得到A。while表示“虽然，尽管”，在此句中引导让步状语从句。答案：A12(2012山东高考)A number of high buildin
42、gs have arisen_there was nothing a year ago but ruins.Awhen BwhereCbefore Duntil解析：四个选项均为连词，由此断定空格后是一个状语从句。由题干中的关键信息there was nothing a year ago but ruins“曾经只有一片废墟”和buildings have arisen“建筑物已拔地而起”可推断，建筑物应建在曾有一片废墟的地方，故用where引导地点状语从句。when“当时”，引导时间状语从句；before“在之前，没来得及就；之后才”，引导时间状语从句；until“直到”，引导时间状语从句。
43、答案：B13(2012山东高考)He smiled politely_Mary apologized for her drunken friends.Aas BifCunless Dthough解析：句意：当玛丽因她醉酒的朋友向他道歉时，他礼貌地微笑着。四个选项均为连词。if“如果”，引导条件状语从句；unless“除非”，引导条件状语从句；though“虽然，尽管”，引导让步状语从句。as可引导时间状语从句，表示主从句动作同时发生或前后紧接着发生，常常译为“(正当)的时候，随着，一边一边”，故只有as符合题意。答案：A14(2012陕西高考)An agreement seems to be
44、impossible because the majority of the committee members are_it.Aagainst BforCto Dwith解析：句意：看来不可能达成一致意见了，因为大多数委员会成员反对它。be against.反对；be for.赞成；根据关键词agreement，impossible可知A项正确；C，D两项为干扰项，很容易排除。解答这类题目需要抓住句中的关键信息词，准确理解句子含义。答案：A15(2012福建高考)You can change your job，you can move house，but friendship is mean
45、t to be_life.Aof BonCto Dfor解析：句意：你可以换工作，也可以搬家，但友谊却可以终身受用。for life意为“终身”。故选D项。答案：D16It takes long to learn the rules and_youve learned them，they can be used freely.Aunless BbeforeCthough Donce解析：句意：学习这些规则需要很长时间，一旦你掌握了它们，就能运用自如。once一旦，符合句意。unlessif.not如果不，before在之前，though虽然，均不合语境。答案：D17He was happy t
46、o have saved the bird_his left hand was hurt.Aas BifCsince Dthough解析：句意：虽然他左手受伤了，但是他很高兴救了那只鸟。though虽然，引导让步状语从句，符合句意。as因为；if如果；since由于，因为。答案：D18(2013嘉兴模拟)Youd better take down all the key points_the memory is still fresh in your mind.Aunless BwhileCbefore Duntil解析：句意：你最好在你记忆犹新的时候写下所有要点。unlessif.not如果
47、不；while当的时候；before在之前；until直到。A、C、D三项均不合句意，B项正确。答案：B19The world is full of wonders，_we open our eyes to see them.Aif only Bas ifCeven if Donly if解析：句意：只要我们睁开眼去观察，世界就充满了奇迹。only if只要；if only要是的话就好了，但愿；as if好像；even if即便，即使。答案：D20Provide your doctor with a detailed medical history_he can give you the ac
48、curate treatment.Aeven if Bin caseCso that Das though解析：句意：给你的医生提供一份详细的病例，以便他能给你精确的治疗。so that为了，以便，符合句意。even if即便，即使；in case以防，万一；as though好像。答案：C21_I could say hello，the foreign guest turned around and went away.AAfter BUntilCWhile DBefore解析：句意：我还没来得及打招呼，那位外宾就转过头去走开了。本题考查从属连词辨析。A：在之后；B：直到才；C：当的时候，虽
49、然；D：在之前。答案：D22You have a gift for art._you do your best，you are sure to create fine art works.AAs soon as BEven ifCIn case DAs long as解析：句意：你很有艺术天赋。只要你竭尽全力，一定会创作出优秀的艺术作品。本题考查状语从句。as long as引导条件状语从句，意为“只要”。答案：D23It was several years_I realized_David had lied to me.Awhen；that Bthat；whenCbefore；that Du
50、ntil；why解析：句意：用了好几年的时间我才意识到David对我撒了谎。第一空：It was一段时间before.过了多久才，在之前已经过了多久，固定搭配。第二空：realized后是宾语从句，且从句中不缺任何成分，所以用that作引导词。答案：C24I cant remember how the tune goes，_Ill recognize it when I hear it.Aso BbutCbecause Dunless解析：句意：我不记得旋律了，但是当我听见它的时候我就能辨别出来。so因此，because因为，unlessif.not如果不，这三项均不合句意。答案：B25We
51、must read between the lines，and sometimes_the lines，to fully understand the writer.Awithin BamongCbesides Dbeyond解析：句意：为了充分理解作者的意图，我们必须读懂字里行间的意思，有时需要读懂言外之意。beyond超越，除了以外；within在之内；among在中间；besides此外，除了以外还有。答案：D26What made John wild_joy?Being admitted to his dream university.Awith BbyCat Dfor解析：句意：什么
52、事让约翰欣喜若狂？被录取到他梦想中的大学。be wild with joy欣喜若狂，固定搭配。答案：A27(2013皖南八校联考)General Manager of W announced that viewers could watch shows and movies for free_watching advertising.Ain charge of Bin favor ofCin case of Din exchange for解析：句意：W的总经理宣布观众可以通过看广告以换取免费收看节目和电影。本题考查介词短语辨析。A：主管，负责；B：赞成，支持；C：以防，万一；D：作为的交换。
53、答案：D28House prices vary from place to place and are usually high_there are famous schools.Awhere BsinceCwhen Dwhether解析：句意：房价因地点不同而有变化，并且在有名校的地方，房价通常很高。本题考查地点状语从句。where意为“在的地方”，引导地点状语从句。答案：A29Mum，could I go out to play now?Let me see.Yes，_you have finished all your school assignments.Auntil BunlessC
54、while Dsince解析：句意：妈妈，我现在能出去玩吗？让我看看可以的，既然你已经完成了你的作业。本题考查状语从句。until直到；unless除非；while在期间，虽然；since自从，既然，因为。所以D项正确。答案：D30(2013青岛模拟)_it was hard for children to leave family and friends，many families chose to send their children to America.ABecause BAlthoughCIf DAs解析：句意：虽然对孩子来说离开家人和朋友很难，但是许多家庭选择了送孩子去美国。al
55、though虽然，尽管；because因为；if如果；as因为。答案：B31The new teacher was so well organized that she began_we stopped yesterday so that no point was left out.Awhen Bin whichChow Dwhere解析：句意：这位新老师条理非常清楚，她从我们昨天停止的地方开始，因而没有遗漏任何要点。where引导地点状语从句；若选in which，则空格后变为定语从句，那么空格前需要有先行词in the place；how与when不合题意且与后面的so that不符。答案
56、：D32Why didnt you pay the bill for Tina?I offered to，_she refused.Aand BbutCor Dso解析：句意：你为什么没替Tina结账？我主动提出了，但她拒绝了。根据offered to和refused可知两句间为转折关系，所以用but。and并且；or或者；so因此。答案：B33(2013石家庄模拟)Its been years_I enjoyed myself so much as last night.Asince BtillCbefore Dafter解析：句意：我已经有好几年没有像昨晚一样玩得那么高兴了。since自从
57、，引导的从句用一般过去时，其主句时态为现在完成时。till直到；before在之前；after在之后。 答案：A34(2013绍兴模拟)You cant complain of being left out_you dont make any effort to share your happiness and sorrow with others.Awhen BunlessConce Dthough解析：句意：既然你没努力跟别人分享快乐与痛苦，你就不能抱怨被忽略。when既然；unlessif.not如果不；once一旦；though虽然，尽管。答案：A35_Jason is willing to help，he doesnt have much time available.AAs BSinceCWhile DUnless解析：句意：Jason乐于助人，但他没多少时间。while表转折关系，用于两种情况的对比说明。as因为；since由于，因为；unlessif.not如果不。答案：C谢谢观看！谢谢观看！
