2019高考英语语法复习专题精讲精练 状语从句
高考英语状语从句精讲(15页)
状语从句高考英语状语从句精讲一什么是状语从句二状语从句位置三状语从句分类四特殊句式五状语从句常见考点六练一练一什么是状语从句状语从句是行使状语功能的从句，因为其作用相当于副词，它可以用来修饰谓语、定语、状语或整个句子。
状语从句通常由一个连接词或起连接词作用的词组引导。
二状语从句位置比较灵活，有时可以放于句首，有时可以置于句末。
状语从句位于句首时，其后常用逗号与后面的句子隔开。
三状语从句分类让步状语though, although, even though, whilewhether，whoever/no matter who，whatever/ n o m atter w hat，whenever/no matter Even t hough y ou s ay s o, I d o n ot believe it.比较状语than as…as，the more…the more The m ore I s ee him ,t he l ess I l ike h im. 方式状语as, as if , as though He t old m e e verything a s i f I w ere h isbest friend.四特殊句式时间状语中A:It +b e +时间点+ w hen……当某事发生时是什么时候It was 11:00 PM when he came back last night.B:It i s/has b een +时间段+s ince……自从某事发生后已过了多久时间It i s /has b een t wo y ears s ince I e ntered t he t he s enior s chool.C:It + be +时间段+before……在某事发生之前需要多久时间It was 8 years before we finally drove away the Japanese invaders.It m ight b e a l ong t ime b efore C hinese l and o n t he m oon.让步状语从句A: as 引导的让步状语从句，从句的表语、状语必须前置到句首。
高考英语一轮复习 基础语法精讲及真题练习12 状语从句高三全册英语试题
入舵市安恙阳光实验学校专题12 状语从句一、状语从句概览二、语法详解在复合句中作状语的从句叫做状语从句。
状语从句可以位于主句之前，也可以位于主句之后。
1.时间状语从句1．when, while和as引导的时间状语从句连词含义用法when当……时候可与延续性动词或非延续性动词连用；从句动作可以发生在主句动作之前、之后或与主句动作同时发生while当……时候只可与延续性动词连用；侧重于主句动作与从句动作相对比as一边……一边……；随着常与延续性动词连用；从句动作与主句动作同时或几乎同时发生1.Researchers in Britain found that when French music wasplayed, sales of French wines went up.2.While watching TV, children do not merely absorb words andimages.3.As he grew older, he became less active.[特别注意] 如果主句表示的是非延续性动作，而从句用延续性动词的进行时态表示在一段时间内正在进行的动作，则when, while与as可互换使用。
When/While/As I was walking down the street, I came across an old friend.2．表示“一……就……”含义的词或短语引导的时间状语从句(1)有的名词(短语)或副词可引导时间状语从句，如：the moment, theminute, the second, the instant, immediately, directly,instantly等，另外as soon as也可引导时间状语从句，从句中用一般时态代替将来时态。
For example, the moment you get on the airplane, startadjusting your biological clock to the destination's time.The boy ran off the minute he saw the owner of the orchard.(2)在hardly/scarcely ... when和no sooner ... than ...结构中，主句用过去完成时，than或when所在的从句用一般过去时。
高三英语语法复习课件：状语从句(完整版)
He will not join us unless he changes his mind.
Don’t trouble trouble unless trouble troubles you.
We are cleaning the classroom while they are playing the football.
The soldier faces the powder while the beauty powder the face.
While I am washing the floor, you can be cleaning the windows.
As (so) far as --- 据……所知 As far as I know, he speaks English very well.
As/So far as I know, he is an expert on DNA.
In case --- 假使, 如果
The plane cannot take off in case it rains.
As long as --- 只要
We will succeed as long as we keep on trying. You can’t play games as long as you remember the rules.
A man is not old as long as he is seeking something.
I was about to fall asleep when my sister came in.
高考英语重要语法知识：状语从句
高考英语重要语法知识：状语从句定义：在句中作状语的从句是状语从句，修饰主句中的动词、形容词或副词等。
状语从句由从属连词引导，从属连词在句中不充当句子成分，只起连接作用，状语从句放在句首时，要用逗号，放在句尾时不用。
分类：根据意义上的不同，状语从句可分为：①时间状语从句②地点状语从句③原因状语从句④目的状语从句⑤条件状语从句⑥结果状语从句⑦让步状语从句⑧方式状语从句⑨比较状语从句一、时间状语从句引导时间状语从句的连词有：as, when(whenever),while, before, after, as soon as, until(till), since,every/each/next time, once.（ as, when, while都有“当……的时候”，可以互用）◆When、While、as的区别：①when是at or during the time ,既指时间点，也可指一段时间，因此when引导的时间状语从句中的动词可以是终止性动词，也可以是延续性动词；while是during the time,只指一段时间，所以while从句中的动词必须是延续性动词。
②when说明从句的动作和主句的动作可以是同时，也可以是先后发生；when从句多用一般过去时while主从句动作或状态同时发生。
while从句多用过去进行时eg. When the teacher came in,we_____________________(talk).When the clock struck twelve,all the lights went out.When we arrived at the station,the train had left.While we _____________(have)supper,all the lights went out.While I was writing letters last night,he was watching TV.④when和while还可作并列连词when表示“就在那时”； while表示“然而”，表前后意思的对比。
高中英语语法专题系列：状语从句
2）while
while侧重主句的动作发生在从句的时间之间，且从句的动 词必须是持续性的。 while+持续性动词 While we were chatting ,she was looking at the time table on the wall． While I slept, a thief broke in.
3）as
as表示 一边…一边…，强调从句和主句中两个动作交 替进行或同步进行。 Sometimes I watch TV as I am having breakfast．（一边...一边...） as表示随着，此用法不用when或while替 As spring warms the earth, all flowers begin to bloom. （随着）
状语从句定义
在复合句中担任状语成分的从句称为状语 从句，修饰主句的谓语动词，形容词或副 词等。
1. 时间状语从句
2. 地点状语从句 3. 原因状语从句
状语从句分类
4. 条件状语从句
5. 让步状语从句 6. 目的状语从句 7. 结果状语从句 8. 方式状语从句 9. 比较状语从句
1. 时间状语从句
经典例题
1. I was so familiar with him that I recognized his voice ______ I picked up the phone. A.while B. after C. In case D. the minute 答案：D 2. How long do you think it will take _______ our product becomes popular with the consumers? A.when B. until C. before D. since 答案：C
2019版高考英语(课标版)一轮复习题组优化训练：第二部分 专题十一 并列连词和状语从句
专题十一并列连词和状语从句题组1 并列连词1.[2017北京,22]—Peter, please send us postcards we’ll know where you have visited.—No problem.2.[2016丙卷(全国Ⅲ),41]In much of Asia, especially the so-called "rice bowl" cultures of China, Japan, Korea, Vietnam, food is usually eaten with chopsticks.3.[2015北京,25]He is a shy man, he is not afraid of anything or anyone.4.[2014北京,21]Some animals carry seeds from one place to another, plants can spread to new places.5.[2014天津,1]Give me a chance, I’l l give you a wonderful surprise.6.[2013北京,22]Don’t turn off the computer before closing all programs, you could have problems.7.[2013新课标全国Ⅰ,32]There’s no way of knowing why one man makes an important discovery another man, also intelligent, fails.8.[2013四川,4]Read this story, you will realize that not everything can be bought with money.9.[2017乙卷(全国Ⅰ)改错]Before getting into the car, I thought I had learned the instructor’s orders, so once I started the car, my mind went blank.10.[2016甲卷(全国Ⅱ)改错]If we stay at home, it is comfortable but there is no need to spend money.11.[2015新课标全国Ⅰ改错]There the air is clean or the mountains are green.题组2 时间状语从句12.[2017北京,28]If you don’t understand something, you may research, study, and talk to other peopleyou figure it out.13.[2016丙卷(全国Ⅲ),45]Over time, the population grew, people began cutting food into small pieces so it would cook more quickly.14.[2015天津,12]We need to get to the root of the problem we can solve it.15.[2015重庆,4]If you miss this chance, it may be years you get another one.16.[2015陕西,20]I believe you will have a wonderful time here you get to know everyone else.17.[2014江西,35]It was the middle of the night my father woke me up and told me to watch the football game.18.[2014陕西,24]The young couple, who returned my lost wallet, left I could ask for their names.19.[2014天津,4] you start eating in a healthier way, weight control will become much easier.20.[2013山东,28] I have to give a speech, I get extremely nervous before I start.21.[2013陕西,18]I have heard a lot of good things about you I came back from abroad.22.[2015陕西改错]My only mistake was that I dropped some on the floor after I was packing them up.题组3 条件状语从句23.[2015江苏,26]It is so cold that you can’t go outside fully covered in thick clothes.24.[2014湖南,26]You will never gain success you are fully devoted to your work.25.[2013重庆,25] we have enough evidence, we can’t win the case.题组4 让步状语从句26.[2017北京,25] birds use their feathers for flight, some of their feathers are for other purposes.27.[2016浙江,5] online shopping has changed our life, not all of its effects have been positive.28.[2015湖南,33] the job takes a significant amount of time, most students agree that the experience is worth it.29.[2014山东,2]I don’t really like the author, I have to admit his books are very exciting.30.[2014北京,29]Even the forest park is far away, a lot of tourists visit it every year.31.[2013辽宁,24]One can always manage to do more things, no matter full one’s schedule is in life.32. [2013天津,5] small,the company has about 1,000 buyers in over 30 countries.题组5 其他状语从句33.[2017江苏,23]Located the Belt meets the Road, Jiangsu will contribute more to the Belt and Road construction.34.[2016北京,33]I really enjoy listening to music it helps me relax and takes my mind away from other cares of the day.35.[2015浙江,9]Just a single word can change the meaning of a sentence, a single sentence can change the meaning of a paragraph.36.[2014重庆,14]Half an hour later, Lucy still couldn’t get a taxi the bus had dropped her.37.[2013江苏,28]In the global economy, a new drug for cancer, it is discovered, will create many economic possibilities around the world.38.[2015新课标全国Ⅱ改错]He liked it so very much that he quickly walked into the shop.A组基础题A单句填空39.[2018江西赣州十四县(市)期中联考,70]I’m a successful businessman now and I think about the troubles in life, I think about that little girl and the remarkable lesson about life that she taught me.40.[2018甘肃天水三中第二次段考,45]The lady at the desk felt so sorry for me she offered to change the flight at no extra cost.41. [2018广西钦州第一次质检,50]I was going into shock, and they called 911 and waited with me, one holding my hand and speaking gently to me that they would stay help came. 42.[2018河南南阳一中第三次考试,51]We know that tasks your group is given, a few rules need to be followed.43.[2018黑龙江大庆四校第一阶段联考,66]It was n’t long I learned how to develop respectful relationships with my bosses and what tone of voice to use with kids.44.[2018湖南益阳、湘潭调研,64]However, it is reported that eating bad food for a long term not only makes us put on weight but can lead to other health problems such as diabetes, and that it can also affect our mental state result in depression.45.[2018山东滨州期中,70]It is meant to highlight the importance of reading anytime and anyplace, and it’s especially helpful children often lose some of the academic ground during the summer holidays.46.[2018安徽江淮十校第二次联考,47]War for the Planet of the Apes may not be the action and monster film that you had in mind, it’s the kind of film that will make you want to sit in silence in the theater for a few minutes after it ends, taking in what you’ve just witnessed. 47.[2018河南豫南豫北名校精英联赛,47]In the state of Iowa, you live more than a mile away from school you can get a school permit.48.[2017黑龙江大庆实验中学检测,69]Jogging is good exercise it doesn’t poll ute the air.49.[2017四川五校高三联考,61]Once upon a time there was a girl who, though of humble origin, was so beautiful she was famous throughout the region.50.[2017江西宜春四校高三联考,64] We know this is a small contribution compared to all the resources and talents already working on these issues. we want to do what we can, working alongside many others.51.[2016浙江宁波十校联考,18]White-collar workers in China are willing to postpone their retirement ageblue-collar workers prefer to retire early.52.[2016湖南十三校一联,27]Linda was quite sure that she was going to miss her train she was not very far from the station.53.[2016湖南衡阳五校联考,28] long as he works hard, I don’t mind when he finishes the experiment.B单句改错54.[2018山西45校高三第一次联考]But she used to be easy to get angry, especially that she was with family members only.55.[2018安徽合肥第一次英语联考]Half a month passed quickly after I knew it, and I learned how to deal with different people.56.[2018甘肃天水三中第二次段考]The passenger was trying to get her name, so she wanted to post on Facebook about what had happened as a sort of appreciation.57.[2018华大新高考联盟教学质量测评]I would appreciate it whether you could understand and cooperate.58.[2018辽宁六校协作体期中联考]As students, we usually sit too long in the classroom, and as a result our eyes and brains get tired. But it is a good idea to play ball games, go swimming, do some running, or even go for a picnic.59.[2018黑龙江齐齐哈尔地区八校期中联考]My eyes were filled with tears as she wiped down the table but guided my dad to the seat.60.[2018湖北荆州第一次质量检测]Because I was very tired, with his encouragement, I finished my first mini-Marathon.61.[2018河南豫南豫北名校精英联赛]It’s very challenging although there are seven cases for grammar.62.[2018"超级全能生"26省联考]While she pulled over to refuel, she found that she’d left her handbag home.63.[2018吉林百校联盟联考]Though computers are very convenient, but handwriting still plays an important role in the modern world.64.[2018湖南怀化期中联考]It is not the result of giving a man a single fish and the result of teaching a man to fish.65.[2018河南郑州外国语学校第六次调研]It’s true that the job market is much harder these days. Therefore, there are certainly some ways to make a living on our own.66.[2018广西防城港高中毕业班1月模拟]The other kid reached out or felt his stomach, joking, "See how big your stomach is, but you are still eating much!"67.[2017湖南长郡中学高三模拟]No matter how you do, being sincere was the most important.B组提升题A专项语篇型填空(并列连词和状语从句)"Everything happens for the best," my mother said 1 I faced disappointment. " 2 you can carry on, one day something good will happen."After graduating from college, I decided to try for a job in a radio station 3 work my way up to a sports announcer. I went to Chicago, knocked on the door of every station, 4 got turned down every time.In one studio, a kind lady advised me to go to the countryside and find a small station, 5 big stations couldn’t risk hiring an inexperienced person. I returned to my hometown, 6 was turned down even when I appl ied for a job in a sports department of a store. It wasn’t long 7 I decided to try my luck again in another city. In Davenport, Iowa, the program director of a company got me beside a microphone and asked me to broadcast an imaginary game.8 I began to work in the company, I’ve always thought of my mother’s words: "Keep on trying9 some day you succeed. Something wouldn’t have happened if not for that previous failure." 10 job I later have done, I always think about what my mother once taught me, which acts as my guideline in life.B语法填空[2018河南中原名校第三次质量考评]The Han Dynasty is one of the most important 41 (dynasty) in Chinese history. There were many 42 (wonder) achievements during this period. It was the first Chinese dynasty 43 (open) its door to other cultures 44 its foreign trade was prosperous. The Silk Road opened up in the Han Dynasty 45 (lead) to the Middle and Western Asia and 46 Rome. Various forms of art blossomed during the period 47 many great works on literature, history and philosophy appeared. The publishing of China’s first dictionary was completed in 100 AD; it contains 9,000 Chinese characters. At 48 same time, great progress 49 (make) in science and technology was really amazing. The Han Dynasty lasted 400 years. However, the rulers’ corruption (腐败) eventually resulted in 50 (it) destruction.C短文改错[2018贵阳高三摸底考试]Life is full of various experiences,some of them are unforgettable.I still remember the hiking experiences with my classmates for 16 km a year later.That summer day, we set off early in the morning, think it would be great fun to walk for so long a distance.However, with the weather is getting hotter and hotter, I found their legs heavier and heavier.What’s worse,my feet began bleeding because long-time pressing against the shoes.At one point, I even wanted to give up.But I manage to drag the rest of the way to the destination.Though not pleasant,this journey was impressive or rewarding.I have learnt that life is a long journey like this.No matter what happened, we should never give up.答案专题十一并列连词和状语从句题组1 并列连词1.so —Peter,请给我们寄一些明信片,这样我们就能知道你去过哪里。
高考英语语法复习：八种状语从句的用法
高考英语语法复习：八种状语从句的用法状语从句状语从句有时间、地点、原因、目的、方式、结果、条件、让步等八种。
一、时间状语从句：引导词有after，before，as，once，since，till，until，when，whenever，while，as soon as，the moment/minute…(一…就)，the time,the day,every time,next time,each time，by the time of，no sooner…than(一…就)，hardly…when(一…就).例如：Each/Every time he comes here,he will drop in on me.每次他来这儿他都顺便看我.He was ill last time I saw him.上次我见到他时他病了.No sooner had she heard the news than she cried.她一听到这个消息就哭了.[辨析]when与whilewhen引导的从句动词可以是延续性的或短暂性的，while引导的从句中动词必须是延续性的;在“be…when…”句式中when表“at that time(就在这时)”意，这样用的when不能换为while;while有时并不表示时间，而表示对比，意“而”、“却”，when无这样的用法。
例如：When I got home I found the door locked./While(或When)we were working in the fields,it suddenly began to rain./He was wandering through the streets when a bike hit him./His pencil is red,while mine is yellow.[辨析]till与until一般情况下可以互换，但until可以位于句首，till则不能。
高考英语语法复习系列讲座-状语从句
语法复习六：状语从句由从句担任的状语，在句⼦中可修饰谓语（或其它动词）、形容词、副词或是整个句⼦，它可以⽤来表⽰时间、地点、原因、⽬的、结果、条件、⽅式、⽐较、让步等。
状语从句是⼀较⼤的语法项⽬，也是近⼏年⾼考题中常见的⼀个重要试点。
⾼考中已考查了时间、让步、地点、条件、⽬的等状语从句，这些从句仍是今后⾼考热点，应作充分准备。
同时对⽅式状语从句也应引起重视。
（⼀）时间状语从句表⽰时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time等引导。
e.g. When I came into the office, the teachers were having a meeting.He started as soon as he received the news.Once you see him, you will never forget him.No sooner had I gone to bed than I went to sleep.（⼆）原因状语从句原因状语从句是表⽰原因或理由的，引导这类从句的最常⽤的连词是because, since, as , now that（既然）等，for 表⽰因果关系时（它引导的不是从句）为并列连词，语⽓不如because强。
e.g. He is disappointed because he didn't get the position.As it is raining, I will not go out.Now that you mention it, I do remember.（三）地点状语从句引导地点状语从句的连词是where 和wherever等。
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①……之后……才……②不多久……就……③不等……就……④刚……就……⑤先……再……We had sailed four days and four nights before we saw land.我们航行了四天四夜才看到陆地。
It wasn’t long before he told me about the affair.没过多久他就把这件事告诉了我。
We hadn’t run a mile before he felt tired. 我们跑了还不到一英里他就累了。
He hardly entered the room before he heard the telephone ring.他刚进房间就听见电话铃响起来。
You can have a few days to think about it before you make your decision.此事你可以思考几天再作决定。
1.时间状语从句①One Friday, we were packing to leave for a weekend away ______my daughter heard cries for help.A. afterB. whileC. sinceD. when【解析】答案为D。
when在句中表示“就在这时（突然）……”之意，它构成的固定句式是：be doing sth.／be about to do sth. ／had done sth….when…。
句意：一个周五，我们正在扛包裹动身去过周末，就在这时我女儿听到了呼救声。
②If a lot of people say a film is not good, I won’t bother to see it, or I’ll wait _______ it comes out on DVD.A. whetherB. afterC. thoughD. until【解析】答案为D。
句意：如果很多人说某部电影不好看，我也懒得去看了，或者等到出了DVD我再看。
until为“直到”的意思。
③Please call my secretary to arrange a meeting this afternoon, or ______ it is convenient to you.A. wheneverB. howeverC. whicheverD. wherever【解析】答案为A。
whenever意为“无论何时”；however意为“然而”；whichever意为“任何一个”；wherever意为“无论哪里”。
连接副词在后句中充当状语，根据语境可知是指时间，选A项。
句意：请打电话给我的秘书安排今天下午的会议，或者在你任何方便的时候。
④As it reported, it is 100 years __________Qinghua University was founded.A. whenB. beforeC. afterD. since【解析】答案为D。
“It is + 时间段+since + 从句（谓语为一般过去时）”为固定句型，故答案选D项。
句意：正如所报道的那样，自从清华大学建校以来已有100年的历史了。
⑤He had no sooner finished his speech _________ the students started cheering.A. sinceB. asC. whenD. than【解析】答案为D。
考查no sooner…than.表示一……就; 根据句子意思“他的演讲一讲完学生就开始欢呼了。
”since既然；as作为；when 当什么时候；类似的还有hardly/scarcely…when…，这两个结构中no sooner，hardly，scarcely放在句首时句子用倒装语序。
如本句可以改为：No sooner had he finished his speech than thestudents started cheering.⑥Mary made coffee ________ her guests were finishing their meal.A. so that B although C. while D. as if【解析】答案为C。
so that译为“以便”表示目的，although译为“尽管，虽然”，as if译为“好像”，while译为“当……的时候”，因此while符合句意，选择C项。
句意：当客人们将要结束用餐的时候玛丽才冲了咖啡。
⑦Just use this room for the time being, and we’ll offer you a larger one _______it becomes available.A. as soon asB. unlessC. as far asD. until【解析】答案为A。
句意: 只是暂且使用这个房间。
但是一有（as soon as）可以使用的房间，我们就提供你一个大点的房间。
2.地点状语从句①Today, we will begin we stopped yesterday so that no point will be left out.A. whenB. whereC. howD. what【解析】答案为B。
句意：今天，为了不遗漏要点，我们从昨天结束的地方开始。
where 引导地点状语从句。
②_____ unemployment and crime are high, it can be assumed that the latter is due to the former.A. BeforeB. WhereC. UnlessD. Until【解析】答案为B。
Where引导地点状语从句。
句意：哪儿的失业率高，哪儿的犯罪就率高，可以认为前者是导致后者的原因。
3.原因状语从句The old man asked Lucy to move to another chair _______ he wanted to sit next to his wife.A. althoughB. unlessC. becauseD. if【解析】答案为C。
空格前后两个句子在逻辑意义上存在原因关系，所以用because引导原因状语从句。
Although引导让步状语从句，unless和if引导条件状语从句。
句意：这位老人叫露丝挪到另一把椅子上因为他想跟他妻子挨着坐。
4.条件状语从句①He had his camera ready ________ he saw something that would make a good picture.A. even ifB. if onlyC. in caseD. so that【解析】答案为C。
in case 意为“以防，以免”；even if意为“即使”；if only意为“要是就好了……”,so that意为“为了，以便”。
句意：他准备好了相机以防看到可以拍摄的景物。
②The little boy won’t go to sleep ______________his mother tells him a story.A. orB. unlessC. butD. whether【解析】答案为B。
or译为“或者”表示选择，unless译为“除非”表示条件，but译为“但是”表示转折，whether译为“是否”，根据句意选择B项。
句意：除非他的妈妈给他讲故事这个小男孩儿是不会睡觉的。
③— Our holiday cost a lot of money.— Did it? Well, that doesn’t matter you enjoyed yourselves.A. as long asB. unlessC. as soon asD. though【解析】答案为A。
as long as意为“只要”；unless意为“除非，否则”；as soon as意为“一……就”；though意为“虽然”。
根据后一句为只要你玩得开心，花多少钱并不重要，就能搞定答案。
④—Shall we have our picnic tomorrow?—______it doesn’t rain.A. UntilB. WhileC. OnceD. If【解析】答案为D。
If引导条件状语从句。
句意：如果不下雨的话（我们就去野餐）。
5.让步状语从句①Try she might, Sue couldn’t get the door open.A. ifB. whenC. sinceD. as【解析】答案为D。
题目中前半句说，她试过；后半句说Sue不能打开门，明显前后两个句子意思相反，所以选择D。
as表示“虽然”，引导让步状语从句。
句意：虽然她试了，但还是无法打开门。
②________volleyball is her main focus, she’s also great at basketball.A. SinceB. OnceC. UnlessD. While【解析】答案为D。
根据主句内容可知，她也擅长打篮球，由此可知排球是她的强项，故选while引导让步状语从句。
③Frank insisted that he was not asleep _________I had great difficulty in waking him up.A. whetherB. althoughC. forD. so【解析】答案为B。
whether“是否”，常与or连用；although“尽管，虽然”，引导让步状语从句；for用来引导因果并列句；so“因此，所以”，引导因果并列句。
根据句意可知，空格前后为让步关系，故答案为B项。
句意：尽管我费了很大劲才把弗兰克叫醒，他却坚持说自己没有睡着。
④________all of them are strong candidates, only one will be chosen for the post.A. SinceB. WhileC. IfD. As【解析】答案为B。
while的意思是“虽然, 尽管”, 相当于though或although。
句意：虽然他们都是强有力的候选人, 但只有一个人被选中担任这个职务。
⑤To show our respect, we usually have to take our gloves off ______ we are to shake hands with.A. whicheverB. wheneverC. whoeverD. wherever 【解析】答案为C。