高考英语《并列句和状语从句》专项练习及答案解析
高考英语—并列句与状语从句题目含解析
并列句与状语从句2018.01 Ⅰ.根据语境填入适当的连词1．Bringtheflowersintoawarmroom__and__they'llsoonopen.2．OneFriday,wewerepackingtoleaveforaweekendaway__when__mydaughter heardcriesforhelp.3．Hewasverytiredafterdoingthisforawholeday，__but/yet__hefeltveryhappysincethecropdid“grow”higher.4．Ithenrealizedshehadnoarms__or__legs,justahead,neckandtorso.5．Hetooktheoldmannotjustacrosstheriver,__but__tohishome.6．...thegovernmentofadevelopedcountrymaywellprefertoseeaslowlyincreasin gpopulation,ratherthanonewhichisstable__or__indecline.7．Standoverthere__and__you'llbeabletoseetheoilpaintingbetter.8．Hefounditincreasinglydifficulttoread,__for__hiseyesightwasbeginningtofa il.9．Startoutrightaway,__or__you'llmissthefirsttrain.10．Wewereswimminginthelake__when__suddenlythestormstarted.11．WearegoingtothebookstoreinJohn'scar.Youcancomewithus__or__youcan meetustherelater.12．Atlast,wefoundourselvesinapleasantparkwithtreesprovidingshade__and_ _satdowntoeatourpicniclunch.Ⅱ.单句语法填空1．(2014·江苏，21改编)Lessonscanbelearnedtofacethefuture__though/although__historycannotbechang ed.解析：对比分析两个句子的意思可知从句表达的意思是“虽然；尽管”。
高考英语二轮复习训练： 并列连词和状语从句专题训练含答案
并列连词和状语从句专题训练Ⅰ.单句语法填空1．Many teens in high school want to try out for sports because they think it will make them more popular. ________ there are lots of other benefits of sports that they may ignore.解析考查连词。
第一句句意：很多高中生想申请(参加)体育运动，因为他们认为体育运动会让他们更受欢迎。
第二句句意：有很多其他可能被青少年忽略的体育运动的好处。
分析语境可知，两句之间是转折关系，故填But。
答案But2．Hunting elephants was so profitable ________ from 1979 to 1989 the number of elephants in Africa fell from 1.3 million to 600,000.解析句意：猎杀大象能如此有利可图以至于从1979年到1989年，非洲大象的数量从130万下降到60万。
so...that...意为“如此……以至于……”，引导结果状语从句。
答案that3．But for now, they all have to postpone their plans ________ the winter storms pass.解析句意：但是现在，他们都得把他们的计划推迟到冬季风暴结束才能实施。
根据句意可知，设空处填till或until。
答案till或until4．Researchers have found, in their experiment, that a baby's cries can cause unique emotional responses in the brain, making it impossible for us to ignore them ________ we are parents or not.解析句意：研究者们在他们的实验中发现，婴儿啼哭能够引起头脑中独特的情感反应，使得我们不可能忽略他们，无论我们是不是父母。
第13讲 并列句和状语从句(练)-2024年高考英语一轮复习讲练测(新教材新高考)(解析版)
第13讲并列句和状语从句（模拟精练+真题演练）用适当的单词填空1. (2023年江苏南通统考三模) Those who chose to leave could rent their old houses to the construction company for commercial purposes after renovation, ________ those who stayed would be offered a specialized renovation plan based on the house’s practical conditions, usually including adding a kitchen and a bathroom.【答案】while/and【解析】考查连词。
句意：那些选择离开的人可以将他们的旧房子翻新后租给建筑公司用于商业用途，而留下的人则会根据房子的实际情况被提供专门的改造方案，通常包括增加厨房和浴室。
上一句“Those who chose to ...after renovation”和空后句子之间为并列关系，可用and；同时两者之间可为两种情况作对比，用while。
故填and或while。
2.(2023年福建厦门一中模拟测试) There is so much to take in ________ disciples (学徒) usually start their career as young children, spending years conditioning their bodies and minds for the stage.【答案】that【解析】考查状语从句。
句意：舞台剧可以吸收的东西太多了，以至于徒弟们通常从孩童时期就开始了他们的演艺生涯，花数年时间为舞台剧训练自己的身体和思想。
此处为句型so...that...如此……以至于……，引导结果状语从句。
高考二轮英语语法专训：11-并列句和状语从句----(解析版)
2021届高考二轮英语语法专训11. 并列句和状语从句重点一并列句★★★★★并列句中使用的连词是高考考查的重点，考生要熟练掌握常考并列连词的用法。
1．and表示顺承以及并列关系，还可以用于固定句式：“祈使句＋and＋陈述句”。
2．but表示转折关系，不能与although和though连用。
3．so为表示因果关系的连词，一般前一句子多为后面句子存在的原因，so后面的句子为结果，so不能和表示原因的从属连词because连用。
4．or“或者”为表示选择关系的连词，or还可译为“否则”，可用于句型：“祈使句＋or＋陈述句”。
5．利用连词词组both ... and ...、neither ... nor ...、not only ... but also ...、either ... or ...、not ... but ...特殊搭配解题。
6．when/while用作并列连词when和while可做并列连词。
when表示“在那时，此时突然”；while表示“然而，而”，表对比或转折关系。
并列连词when常用于以下句型中：...was/were doing ...when ...……正在做……突然……...was/were about to do ...when ...……刚要做……突然……...was/were on the point of doing ...when ...……刚要做……突然……...had just done ...when ...……刚/一……就……·The children were playing when they heard the sound of a motorbike.孩子们正在玩耍，这时他们听见了摩托车的声音。
·He is strong while his brother is weak.他很强壮而他哥哥却很虚弱。
(单句填空)1．(2018·浙江高考)Small amounts of caffeine—a cup ________ two of coffee a day—seem safe for most people.答案与解析or句意：对于大多数人来说，少量的咖啡因——每天一杯或者两杯咖啡似乎是安全的。
高考英语一轮复习语法知识必备：08.并列句和状语从句
并列句和状语从句一、并列句【考题再现】①(2024·福州模拟) It has helped me grow as a person and I have a whole new respect for all the farmers.①(2023·全国甲卷短文改错改编) I used to be afraid of insects, but last Friday’s biology class made a big change in me.【要点总结】并列句由两个或两个以上并列而又独立的简单句构成。
在并列句中,这些简单句常由并列连词(短语)连在一起。
并列连词的用法用法连词例句表并列、递进或顺承关系and, both...and...,neither...nor..., notonly...but(also)..., not...but...等*Not only can he sing well,but also he can play theguitar.表转折、对比关系but, while等*It often rains in the south, while it seldom rains inthe north.表选择关系either...or...,or等*Now you can have a rest or you can go to thecinema.表因果关系for, so等*He found it increasingly difficult to read, for hiseyesight was beginning to fail.【重点提示】(1)“祈使句+and/or+陈述句”句型是近年来高考的热点,有时祈使句部分也可用名词短语。
Hurry up, and you will catch the early bus.One more hour and we will get everything ready for take off.(2)下列句型中常用并列连词when:①be going to do sth. when...“正要做某事,这时(突然)……”①be about to do sth.when...“正要做某事,这时(突然) ……”①be on the point of doing sth.when...“正要做某事,这时(突然) ……”①be doing sth.when...“正在做某事,这时(突然) ……”①had just done sth.when...“刚做了某事,这时(突然) ……”注:以上句型中的be通常是过去式。
高考英语总复习【专题12】并列句和状语从句(含答案)
高考英语总复习【专题12】并列句和状语从句(含答案)考点一并列句1.There’s no way of knowing why one man makes an important discovery another man,also intelligent,fails.(2021新课标全国Ⅰ,32) A.since B.if C.asD.while剖析:D 考查连词。
句意:不清楚为什么一个人有重大发现,而另一个也很聪明的人却失败了。
根据句意可知,上下文之间为对比关系,因此用while,表示“而,但是”。
2.I was glad to meet Jenny again, I didn’t want to spend all day with her.(2021新课标全国Ⅱ,3) A.but C.soB.and D.or剖析:A 考查并列连词。
句意:我很高兴再次见到Jenny,但是我不想整天和她待在一起。
前后两句之间为转折关系,因此用but。
3. Read this story, you will realize that not everything can be bought with money.(2021四川,4) A.or C.butB.and D.so剖析:B 考查并列连词。
句意:读这个故事,你就会意识到并不是一切东西都能用金钱买得到。
“祈使句+and/or+陈述句”为固定句型。
根据句意此处表示顺承关系,因此用and。
4.It’s not easy to change habits, with awareness and self-control,itis possible.(2021重庆,23) A.for C.butB.or D.so剖析:C 考查连词。
句意:改变习惯不容易,但是只要有意识和自控力,还是有可能的。
由句意可知,此处表示转折关系,故用but。
A项表“因为”;B项表“或者”;D项表“所以”。
【助力2024】高考英语 语法专题复习精练：状语从句(含2024试题1)
2.(2024课标卷)34. You have to move out of the way the truck cannot get past you.A. soB. orC. andD. but【答案】B【解析】考查并列连词。
上下文存在着逻辑上的条件关系，所以用“or”意为“否则的话”。
句意：你得挪一挪位置，否则卡车过不去。
4.(2024北京卷)21.—Look at those clouds!—Don’t worry. ______ it rains, we’ll still have a great time.A. Even ifB. As thoughC. In caseD. If only【答案】A【解析】考查状语从句。
even if 即便，as though好像，in case 以防，if only要是…...多好啊。
句意：—看看那些云！—不用担忧。
即使下雨，我们也会玩得很快乐的。
5.(2024天津卷)14.Everything was placed exactly ___________he wanted it for the graduation ceremony.A. whileB. whenC. whereD. though【答案】C【解析】考查状语从句。
地点状语从句。
句意：毕业典礼所须要的东西都被放在了他想放的地方了。
7.(2024上海卷)40.The map is one of the best tools a man has _ _ he goes to a new place.A. wheneverB. whateverC. whereverD. however【答案】A【解析】考查状语从句。
从句中有“地点a new place”作宾语，故解除BC选项。
很明显本句是时间状语从句。
句意：一个人无论什么时候到了一个新地方，地图就是他运用的最好的工具之一。
8.(2024重庆卷) 30.—Coach, can I continue with the training?—Sorry, you can’t ______you haven’t recovered from the knee injury.A. untilB. beforeC. asD. unless【答案】C【解析】考查状语从句。
高考英语一轮复习基础语法专题二句法篇第3讲并列句和状语从句练习含答案
第3讲并列句和状语从句◎冲关训练→专练如何解◎Ⅰ.单句语法填空1. The feeling of being able to see it to form my opinion is like breaking down another wall as a blind person.2.Actually，I started to learn kung fu when I was seven years old，have long been out of practice.3.he asked the villagers on the banks of the river where he could find the legendary artist，they smiled and pointed down the river.4.—Why do people like pop music？I hate it so much.—Even it is not your style，that doesn’t mean it is bad.5.Though it is the only unnatural thing on your way up the mountain，still it highlights the whole adventure _________ offers a place where you can sit down to rest your aching legs.6.My bike was old and shaky _________ did the job.7.I’d like to leave as soon as possible and join my children，they are.8.They kept their collection at home until it got too big until they died，and then it was given to a museum.9.I waited patiently the oil was hot.10.Then I can spare some time to learn it again，_________ that we can practise together every day.【答案与解析】1.and句意：能够看到它并形成我的观点的感觉就像盲人推倒了另一堵墙。
2025届高考英语一轮总复习专题八并列句和状语从句学案含解析新人教版
专题八并列句和状语从句考点精讲一并列句考点一常见并列句的类型及并列连词类型并列连词并列关系(递进关系) and，both．．．and．．．，not only．．．but also．．．，neither．．．nor．．．等转折或对比关系but，yet，whereas，while等选择关系or，or else，either．．．or．．．，not ．．．but．．．等因果关系for，so等彼得和汤姆都来自南非。
First，my English is very good and I'm open-minded and warm-hearted，so I'm getting along well with everyone．首先，我的英语很好，而且我性特别向、很热心，因此我和每个人都相处得很好。
He tried hard to catch up with his classmates，but he failed．他尽力赶上同学们，但是失败了。
The children can go with us，or they can stay in．孩子们可以跟我们去，也可以待在家。
He must have been caught in the rain，for he is wet all over．他确定被雨淋了，因为他浑身都湿了。
考点二并列连词构成的常用句型1．and(1)祈使句＋and＋陈述句(祈使句相当于一个条件状语从句，and后面的句子相当于一个表示结果的主句)。
Work hard，and you will succeed．(＝ If you work hard，you will succeed．) 努力学习，你就会胜利。
(2)名词词组＋and＋陈述句(名词词组相当于一个条件状语从句，其中常含有more，another等词)。
Another try，and you'll make a success．再试一次，你就会取得胜利。
高考英语 考点一遍过 专题 并列句和状语从句(含解析)
落堕市安心阳光实验学校考点26 并列句和状语从句高考频度：★★★★★考向一并列句一、并列连词1.表示并列关系的连词：and: 可用来连接两个或两个以上的单词/短语或句子，表示一种顺接的关系。
We are singing and they are dancing.or：用于否定句中连接并列成分，表示＂和，与＂；用于＂祈使句+or+陈述句＂中，意为＂否则，要不然＂。
The baby is too young. He can’t speak or walk.both…and：＂两个都……＂，连接两个并列主语时谓语动词用复数。
Both Li Ping and Mary are going to the Great Wall tomorrow. either…or…：＂要么……要么＂，连接的并列成分可在句中作主语、表语、宾语等。
连接并列成分作主语时，谓语动词通常与or后的部分保持一致。
Either she or I am right.neither…nor: ＂既不……也不……＂，连接的并列成分可在句中作主语、表语、宾语等。
连接并列成分作主语时，谓语动词通常与nor后的部分保持一致。
Neither he nor I am right.not only…but also: ＂不仅……而且……＂，强调后者；引导并列主语时，谓语动词与后面的主语保持一致。
Not only the students but also the teacher gives the money to our school.2. 表示转折关系的并列连词3. 表示因果关系的并列连词forso：4.when：＂就在那时＂，常用句型：be about to do…when…be going to do…when…be doing…when…►I was about to leave when the telephone rang.二、并列句并列句由两个或者两个以上分句并列在一起构成，起基本结构是分句加并列连词加分句。
高考英语专题强化练习9 并列句和状语从句1
高考英语专题强化练习9并列句和状语从句1考点1并列句1．________ online shopping has changed our life，not all of its effects have been positive.2．________ the average age of the population increases，there are more and more old people to care for.3．It was time for her to have a new baby，________ __it was also time for the young panda to be independent. 4．You probably know who Marie Curie was，________ you may not have heard of Rachel Carson.5．The meaning of silence varies among cultural groups.Silences may be thoughtful，________ they may be empty when a person has nothing to say.考点2状语从句6．I learned that ________ you fall in love with something and do it all the time，you will get better at it. 7．However，Mexicans may use silence________instructions are given by a person in authority rather than be rude to that person by arguing with him or her.8．For example，Let’s number the letters of the alphabet，in order，from 1 to 26.________ we substitute a number for each letter，the message “Meet me” would read “13 5 20 13 5.”9．________you do，don’t be a bystander.Get involved.参考答案1．While[句意：尽管网上购物已经改变了我们的生活，但是不是所有的影响都是积极的。
2025届高考英语复习：易错题专项(并列句和状语从句)练习(附答案)
2025届高考英语复习：易错题专项(并列句和状语从句)练习1．It’s been an honor to watch the panda programme develop ________ to see the pandas settle into their new home.2.During China’s dynastic period, emperors planned the city of Beijing __ arranged the residential areas according to social classes.3.They discovered that the arms of these figures were created separately and then attached to the bodies and covered in a layer of fine clay. The carving of fine details was completed the arms were attached.4.On Dec 17, 2020, China’s taijiquan, or tai chi, was added to UNESCO’s Representative List of the Intangible Cultural Heritage of Humanity. ________more than two years have passed, Chen Bing is still excited about it.5.Taiping Kowkui. Every spring ______foggy days moisten the emerald hillsides, villagers know their harvest will come.6.Around every corner and at every turn, there is a new view to store for guests. And then, just they think they have seen it all, a new fountain or landscape pops up.7.China is the world’s second-largest art market, it is not clear where Dafen fits in. Li Jinghu, an artist from nearby Dongguan, often visits the village hoping to discover new talent.8.Before planes and trains brought our world close together, it was the first link that ever connected the East and the West the life blood of international trade in ancient time.9. Naked marriage (裸婚) refers to a marriage without a car, a house, a wedding ring evena wedding party.10.Traditional dishes such as momos, a type of steamed dumpling filled with meat or vegetables, Tibetan butter tea, made from yak butter and tea leaves, are served. Sweet treats like Tibetan butter cookies and dried fruit are also enjoyed.11.Perhaps you can be inspired by this Chinese proverb(谚语): “Keep a green tree in your heart, perhaps a singing bird will come.”12. The Losar celebrations come to an end with a grand ceremony. People gather in public spaces and light incense (香) and candles offering food, drinks and other items to the gods.13. “ it were not for tennis, I would still be helping out my family with farm work back at home,” Wang said.14. Cold weather can be hard on pets, just like it can be hard on people. Sometimes owners forget that their cats are just as used to the warm shelter they are.15.burdens you are having now on your shoulders, let it down for moment if you can. Life is short, so enjoy it.参考答案1．It’s been an honor to watch the panda programme develop ________ to see the pandas settle into their new home.【答案】and【答案详解】考查连词。
高考英语《并列句和状语从句》专项练习及答案解析
高考英语《并列句和状语从句》专项练习1．Your parents are always there by you, _____you need them.A. wheneverB. howeverC. whateverD. whoever【答案】A【解析】考查让步状语从句。
Whenever无论什么时候；however无论如何；whatever无论什么；whoever 无论谁。
句意：你的父母总是在你身边，无论什么时候你需要他们。
故选A。
2．_____ I make a promise to help others, I will manage to complete it.A. AlthoughB. OnceC. UnlessD. Before【答案】B【解析】考查从属连词辨析。
句意：一旦我承诺帮助他人，我会设法成功地完成承诺。
although虽然；once一旦；unless除非，如果不；before在……之前。
故选B。
3．We won’t take action ________ we believe things are getting better.A. thoughB. howeverC. unlessD. where【答案】C【解析】考查连词。
句意：我们不会采取行动，除非我们相信情况正在好转。
A. though尽管；B. however 然而；C. unless除非；D. where在哪里。
根据题干won’t得知，此题要表达“除非……否则……”。
故选C项。
4．________ Mr. White was the last man I wanted to see, I did everything in my power to help him.A. SinceB. WhenC. WhileD. Unless【答案】C【解析】考查连词辨析。
句意：尽管怀特先生是我最不愿意见到的人，我尽自己最大的努力去帮助他。
高考英语真题专练：并列句和状语从句(含答案和解析)
A. unless B. Although C. Before D. Once
【答案】D
【解析】
试题分析：句意：一旦你开始更健康的饮食，控制体重就会变得容易得多。Unless除非；Although尽管；Before在……之前；Once一旦。Unless相当于if not，引导条件状语从句；Although引导让步状语从句，不能和but连用；Before引导时间状语从句；Once引导具有条件意味的时间状语从句。根据语境和词义可知选D。
A. Once B. If C. Although D. Because
【答案】C
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22. —Peter, please send us postcards ______ we’ll know where you have visited.
—No problem.
A. but B. or C. for D. so
35. I am not afraid of tomorrow, ________ I have seen yesterday and I love today.
A. so B. and C. for D. but
【答案】C
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26.______some people are motivated by a need for success, others are motivated by a fear of failure.
A. Until B. Unless C. Once D. Although
2024届高三英语二轮复习并列、状语从句训练(含答案)
2024届高三英语二轮复习并列、状语从句训练（含答案）并列句与状语从句句型训练一并列句填空(用and, but, so, for, when, while, or, nor填空)1.work hard _________ you’ll succeed.2.Dress warmly, _________ you’ll catch a cold.3.He likes pop music __________ I’m fond of folk music.4.I’m sorry _________ I won’t be able to come tonight.5.It must have rained lats night, _________ it is wet all over.6.The boy was too young, _________ he couldn’t understand me.7.We were about to set off __________ it suddenly began to rain.8.Neither is he clever __________ does he work hard.9.The soldier faces powder __________ the beauty powders the face.10.Not only does he works hard _________ he is ready to help others.二状语从句填空1. ______________the damage is done, it will take many years for the farmland to recover.2. If you miss this chance, it may be years __________ you get another one.3. We need to get to the root of the problem ___________we can solve it.4. ___________ he allows us to go swimming or not, we won’t change our plan.5. ___________ I have to give a speech, I get extremely nervous before I start.6.___________ the students came from different countries, they got along quite well in the summer camp.7. You will never gain success ___________ you are fully devoted to your work.8. Half an hour later, Lucy still couldn't get a taxi _____________ the bus had dropped her.9. It was the middle of the night ___________ my father woke me up and told me to watch the football game .10. There’s no way of knowing why one man makes an important discovery _____________ another man, also intelligent, fails.11. One can always manage to do more things, no matter__________ full one’s schedule is in life.12. Everything was placed exactly _____________ he wanted it for the graduation ceremony.13. The map is one of the best tools a man has _____________ he goes to a new place.14. I have heard a lot of good things about you _____________ I came back from abroad.15. _________ hard you try, it is difficult to lose weight without cutting down the amount you eat.三状语从句改错1. Video games can be a poor influence if leaving in the wrong hands.2. Since volleyball is her main focus, she’s also great at basketball.3. As is reported, it is 100 years before Qinghua University was founded.4. No matter where dry a desert may be, it is not necessarily lifeless.5. The young couple, who returned my lost wallet, left while I could ask for their names.6. She says that she’ll have to close the shop if business improves.7. Because I always felt I would pass the exam, I never thought I would get an A.8. I was taking a picture while the camera battery ran out of power.9. Vicky came back early last night. It was not yet nine o’clock after she arrived home.10. If you happen to get lost in the wild, you’d better stay wherever you are and wait for help.并列句与状语从句句型训练答案一并列句填空--5 and, or, while, but, for6---10 so, when, nor, while, but二状语从句填空1---5 Once, before, before, whether, When6---10 Although/Though/While, unless, where, when, while11---15 how, where, when, before, However三状语从句改错1---5 leaving-left, Since-Though, before-since, where-how, while-before 6---10 if-unless, Before-Though, while-when, after-when, wherever-where。
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高考英语《并列句和状语从句》专项练习1．Your parents are always there by you, _____you need them.A. wheneverB. howeverC. whateverD. whoever【答案】A【解析】考查让步状语从句。
Whenever无论什么时候；however无论如何；whatever无论什么；whoever 无论谁。
句意：你的父母总是在你身边，无论什么时候你需要他们。
故选A。
2．_____ I make a promise to help others, I will manage to complete it.A. AlthoughB. OnceC. UnlessD. Before【答案】B【解析】考查从属连词辨析。
句意：一旦我承诺帮助他人，我会设法成功地完成承诺。
although虽然；once一旦；unless除非，如果不；before在……之前。
故选B。
3．We won’t take action ________ we believe things are getting better.A. thoughB. howeverC. unlessD. where【答案】C【解析】考查连词。
句意：我们不会采取行动，除非我们相信情况正在好转。
A. though尽管；B. however 然而；C. unless除非；D. where在哪里。
根据题干won’t得知，此题要表达“除非……否则……”。
故选C项。
4．________ Mr. White was the last man I wanted to see, I did everything in my power to help him.A. SinceB. WhenC. WhileD. Unless【答案】C【解析】考查连词辨析。
句意：尽管怀特先生是我最不愿意见到的人，我尽自己最大的努力去帮助他。
A. Since自从，既然；B. When当时；C. While尽管；D. Unless除非。
根据语境得知，表示“尽管”，C 项可以表达这个意思，故选C项。
5．Some parents can’t afford enough time with their children ______they want to.A. as ifB. even ifC. becauseD. before【答案】B【解析】考查连词。
A. as if好像； B. even if 即使； C. because因为； D. before在---之前。
句意：有些父母即使他们想也不能有足够的时间陪伴孩子。
故选B。
6．_____ you visit the website, you can find the information you need.A. AlthoughB. As long asC. SinceD. Unless【答案】B【解析】考查状语从句。
A. Although 尽管； B. As long as 只要； C. Since自从---以来； D. Unless除非。
句意：只要你登录这个网址，你就能找到你需要的信息故选B。
7．Your parents are always there by you, _____you need them.A. wheneverB. howeverC. whateverD. whoever【答案】A【解析】考查让步状语从句。
Whenever无论什么时候；however无论如何；whatever无论什么；whoever 无论谁。
句意：你的父母总是在你身边，无论什么时候你需要他们。
故选A。
8．_____ I make a promise to help others, I will manage to complete it.A. AlthoughB. OnceC. UnlessD. Before【答案】B【解析】考查从属连词辨析。
句意：一旦我承诺帮助他人，我会设法成功地完成承诺。
although虽然；once一旦；unless除非，如果不；before在……之前。
故选B。
9．Backward somewhat technologically ________ we are for the moment, we have confidence in our ability to catch up in time.A. asB. ifC. althoughD. because【答案】A【解析】考查状语从句。
as在这里是“尽管”的意思，用于倒装结构。
句意：尽管我们目前技术是如此落后，但是我们完全有信心及时赶上。
故选A。
10．Backward somewhat technologically ________ we are for the moment, we have confidence in our ability to catch up in time.A. asB. ifC. althoughD. because【答案】A【解析】考查状语从句。
as在这里是“尽管”的意思，用于倒装结构。
句意：尽管我们目前技术是如此落后，但是我们完全有信心及时赶上。
故选A。
11．––Do you mind if I go out this evening?––I don’t mind what you do ________ you let me know ahead of time.A. ever sinceB. in caseC. as long asD. even though【答案】C【解析】考查状语从句。
A. ever since从那时到现在；B. in case万一；C. as long as只要；D. even though即使。
句意：——你介意我今天晚上出去吗？——只要你提前让我知道，我不在乎你做什么。
此处是as long as引导的条件状语从句，故选C。
12．––Do you mind if I go out this evening?––I don’t mind what you do ________ you let me know ahead of time.A. ever sinceB. in caseC. as long asD. even though【答案】C【解析】考查状语从句。
A. ever since从那时到现在；B. in case万一；C. as long as只要；D. even though即使。
句意：——你介意我今天晚上出去吗？——只要你提前让我知道，我不在乎你做什么。
此处是as long as引导的条件状语从句，故选C。
13．Backward somewhat technologically ________ we are for the moment, we have confidence in our ability to catch up in time.A. asB. ifC. althoughD. because【答案】A【解析】考查状语从句。
as在这里是“尽管”的意思，用于倒装结构。
句意：尽管我们目前技术是如此落后，但是我们完全有信心及时赶上。
故选A。
14．We won’t take action ________ we believe things are getting better.A. thoughB. howeverC. unlessD. where【答案】C【解析】考查连词。
句意：我们不会采取行动，除非我们相信情况正在好转。
A. though尽管；B. however 然而；C. unless除非；D. where在哪里。
根据题干won’t得知，此题要表达“除非……否则……”。
故选C项。
15．________ Mr. White was the last man I wanted to see, I did everything in my power to help him.A. SinceB. WhenC. WhileD. Unless【答案】C【解析】考查连词辨析。
句意：尽管怀特先生是我最不愿意见到的人，我尽自己最大的努力去帮助他。
A. Since自从，既然；B. When当时；C. While尽管；D. Unless除非。
根据语境得知，表示“尽管”，C项可以表达这个意思，故选C项。
16． cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby.A. AsB. IfC. UnlessD. While【答案】D【解析】考查连词。
A. As由于；B. If如果；C. Unless 除非； D. While尽管。
句意：虽然克隆人类胚胎是违法的，但一些科学家已经在努力推进研究为了制造克隆的人类婴儿。
选A。
17．Don’t worry! You can easily find a jo b_ skilled workers are badly needed.A. whenB. thoughC. unlessD. where【答案】D【解析】考查状语从句。
A.when当---时候； B. though尽管；C. unless除非； D. where在哪里。
句意：不要担心，在熟练工人非常缺的地方你能很容易找到一个工作。
此处是where引导的地点状语从句，故选D。
18．Your parents are always there by you, _____you need them.A. wheneverB. howeverC. whateverD. whoever【答案】A【解析】考查让步状语从句。
Whenever无论什么时候；however无论如何；whatever无论什么；whoever 无论谁。
句意：你的父母总是在你身边，无论什么时候你需要他们。
故选A。
19．_____ I make a promise to help others, I will manage to complete it.A. AlthoughB. OnceC. UnlessD. Before【答案】B【解析】考查从属连词辨析。
句意：一旦我承诺帮助他人，我会设法成功地完成承诺。
although虽然；once一旦；unless除非，如果不；before在……之前。