2023年中考英语一轮复习语法专项练21：状语从句（含答案解析）

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1、专题21 状语从句一、单项选择1Our classroom wont be clean _ we clean it every day.AafterBwhileCunlessDbecause2The little boy wont go to sleep unless his mom _ him a story.AtellsBtoldCis tellingDwill tell3My pen friend knows a lot about China _ she has never been here.AalthoughBifCbecauseDuntil4A five-minute rest

2、will refresh your mind _ you feel stressed with schoolwork.AunlessBbecauseCalthoughDwhen5It will cost you a lot of money _ you choose to buy a flat in the city centre.AifBalthoughCso thatDunless6_ we walked into the museum, we saw thousands of beautiful butterflies.ANow thatBAs soon asCAlthoughDSo t

3、hat7_ Jill isnt feeling well today, _ he still goes to school.AAlthough; butBBut; althoughCAlthough; /Dbut; although8Tina keeps the good habit of checking her test paper _ she finishes it.Aas ifBin order thatCnow thatDas soon as9Its raining outside. Stay at home _.Aif you have an umbrellaBsince it s

4、topsCafter it stops to rainDtill it stops10Mr. Zhao has given much money to Project Hope _ he is not so rich.AifBthoughCbecauseDunless11I dont know if it _ tomorrow, but if it _, Ill stay at home.Awill rain; rainsBwill rain; will rainCrains; will rainDrains; rains12Hurry up, Tony! We dont have much

5、time.Look at the heavy rain! Im afraid _ we take a taxi, well still miss the train.AifBunlessCso thatDeven if13We still know little about the Moon _ men have landed on it.AsinceBthoughCifDbecause14Tom has studied very hard _ he came to our school.AsinceBwhenCbeforeDwhile15Do I have to attend the cer

6、emony on Thursday? Oh, dont come _ you are busy.AandBbutCifDso16You never really understand a person _ you consider things from his point.AuntilBwhileCbecauseDif17I think our middle school life is colourful and meaningful _ I am always busy with schoolwork.AbecauseBunlessCthoughDas18Dad sometimes go

7、es to the supermarket with us _ he hates going shopping.AbecauseBsoCthoughDif19Mom, Im already 11 years old. Can I ride a shared bike? No. Youre not allowed to do that _ you are 12.AwhenBafterCuntilDas20Teenagers should do some housework _ they finish their homework.AuntilBbutCafterDunless21Li Hong

8、still failed the exam yesterday, _ she tried her best.AifBbecauseCthoughDunless22Many wild animals dont have a safe place to live, _ villages and farms are growing bigger and taking away their land.AbecauseBuntilCalthoughDbefore23I dont have to introduce her to you _ you know the girl.AuntilBunlessC

9、sinceDbut24If the singer _ to Hechi _ September 20th, please call me.Awill get; onBgets; onCgets; inDget; in25_ the weather improves, well have to cancel the outdoor picnic.AUnlessBIfCBecauseDWhen26I wont go to the movies this afternoon _ Im free.AorBunlessCbecauseDthan27You will not get the special

10、 gift _ you finish all the tasks.AafterBbecauseCwhileDunless28Whats Cindys weekend plan?If it doesnt rain, she _ a trip to the Great Wall with her cousin.AtakesBtookCwill takeDis taken29Do you always sleep with the window open?Yes, _ its really cold.AunlessBsinceCbecauseDif30It is impossible to fini

11、sh the difficult task in such a short time on my own _ both of us work together. No problem. Lets start!AifBbutCbecauseDunless二、完成句子31如果你放弃，你就会落后。You _.32北京冬奥会开幕式很精彩，我们都很欣赏。The opening ceremony of Beijing Winter Olympics _ we all enjoyed it.33梅梅要等到雨停后才会离开这儿。Meimei _ _ here _ the rain _.34宇航员在太空中进行的实

12、验颇有价值，值得开展。The experiments done in space by the astronauts are so valuable _.35这本书我已经买了一个星期了。它如此精彩，以至于我决定再看一次。I _ the book for a week. It is _ that I decide to read it once more.36这个问题太难了，几乎没有学生能回答出来。This question was _ _ _ few students could answer it.37孙俪是如此有表演天赋,以至于她经常被高度评价。Sun Li has _.38现代医学发展如

13、此迅速，以至于绝大多数眼疾可以被治愈。Modern science is developing so quickly that _.39你最好把这些文件按类分好，以便能及时分发出去。Youd better _.40既然这个项目很有价值，为何不尽快开展呢？Why dont you _?三、改写句子41He is the tallest in his class.（变成同义句）No one _ in his class is as _ as he.42The scientist was so weak that he couldnt continue with his research (改为简单

14、句)The scientist was _ _ to continue with his research.43We were very tired. We took a taxi back to the hotel to rest our feet. (保持句意不变) We were _ tired _ we took a taxi back to the hotel to rest our feet.44Joan got up early in order to reach her hometown before dark.（保持句意基本不变）Joan got up early _ _ s

15、he could reach her hometown before dark.45Anyone will fall behind if he doesnt have a good learning habit. (保持句意基本不变)Anyone will fall behind _ he _ a good learning habit.46Dont touch the machine if the teacher doesnt allow you to. (保持句意基本不变)Dont touch the machine _ the teacher _ you to.47Bing Dwen D

16、wen is popular. It is really hard to get one.（合并两句为一句） Bing Dwen Dwen is _ popular _ it is really hard to get one.48The lecture from Chinas space station was very interesting. It attracted many children. (合并为一句)The lecture from Chinas space station was _ interesting _ it attracted many children.49We

17、ll go bike riding if it doesnt rain tomorrow. （同义句转换）Well go bike riding _ it _ tomorrow.50Use you mind, and you will work out the solution by yourself.（保持句意基本不变）_ _ use your mind, you will work out the solution by yourself.专题21 状语从句一、单项选择1Our classroom wont be clean _ we clean it every day.AafterBw

18、hileCunlessDbecause【答案】C【详解】句意：如果我们不每天打扫，我们的教室就不会干净。考查连词辨析。after在之后；while当时候；unless除非，如果不；because因为。前半句表示“教室不会干净”，而后半句表示“我们每天打扫”。空白处应用unless，意为“除非”，引导条件状语从句。故选C。2The little boy wont go to sleep unless his mom _ him a story.AtellsBtoldCis tellingDwill tell【答案】A【详解】句意：小男孩不会去睡觉，除非他妈妈给他讲故事。考查条件状语从句的主将从现

19、。分析句子结构，unless引导条件状语从句，主句中的“wont”说明主句用一般将来时，根据“主将从现”原则，从句应用一般现在时来表示将来的动作。从句主语his mother为第三人称单数，因此动词tell也应用动词的第三人称单数形式tells。故选A。3My pen friend knows a lot about China _ she has never been here.AalthoughBifCbecauseDuntil【答案】A【详解】句意：我的笔友对中国很了解，尽管她从未来过这里。考查连词辨析。although虽然、尽管；if如果；because因为；until直到。根据句意可

20、知，空前空后是让步关系，应用although引导让步状语从句。故选A。4A five-minute rest will refresh your mind _ you feel stressed with schoolwork.AunlessBbecauseCalthoughDwhen【答案】D【详解】句意：当你在学业上感到压力时，一个五分钟的休息将使你的思维重新恢复活力。考查连词辨析。unless除非；because因为；although尽管；when当时。根据“you feel stressed with schoolwork.”和“A five-minute rest will refr

21、esh your mind”可知空后是时间状语从句，表示当有压力的时候。故选D。5It will cost you a lot of money _ you choose to buy a flat in the city centre.AifBalthoughCso thatDunless【答案】A【详解】句意：如果你选择在城市中心买一套公寓，它将花费你许多的钱。考查连词词义辨析。if如果，引导条件状语从句；although虽然，引导让步状语从句；so that以便于，引导目的状语从句；unless除非，引导条件状语从句。根据“It will cost you a lot of money”

22、和“you choose to buy a flat in the city centre”可知，此处应用if引导条件状语从句，表示“如果”。故选A。6_ we walked into the museum, we saw thousands of beautiful butterflies.ANow thatBAs soon asCAlthoughDSo that【答案】B【详解】句意：我们一走进博物馆就看到成千上万只美丽的蝴蝶。考查连词辨析。Now that既然；As soon as一就；Although虽然；So that因此。根据“we walked into the museum,

23、we saw thousands of beautiful butterflies.”可知，表达“我们一走进博物馆就看到成千上万只美丽的蝴蝶。”用As soon as引导从句。故选B。7_ Jill isnt feeling well today, _ he still goes to school.AAlthough; butBBut; althoughCAlthough; /Dbut; although【答案】C【详解】句意：虽然吉尔今天感觉不舒服，但他仍然去上学了。考查让步状语从句。根据“.Jill isnt feeling well today.he still goes to sch

24、ool.”可知，although引导的让步状语从句不与but连用；且后一句是主句。故选C。8Tina keeps the good habit of checking her test paper _ she finishes it.Aas ifBin order thatCnow thatDas soon as【答案】D【详解】句意：蒂娜保持着一做完试卷就检查的好习惯。考查连词辨析。as if似乎；in order that以便于；now that既然；as soon as一就。根据“checking her test paper she finishes it”可知，一做完试卷就检查，故选

25、D。9Its raining outside. Stay at home _.Aif you have an umbrellaBsince it stopsCafter it stops to rainDtill it stops【答案】D【详解】句意：外面在下雨。待在家里直到它停止。考查连词辨析。if you have an umbrella如果你有一把雨伞；since it stops因为它停了；after it stops to rain在雨停之后；till it stops直到它停止。根据“Its raining outside. Stay at home”可知，外面正在下雨，所以要待

26、在家里直到雨停才能出去，故选D。10Mr. Zhao has given much money to Project Hope _ he is not so rich.AifBthoughCbecauseDunless【答案】B【详解】句意：赵先生给希望工程捐了很多钱，虽然他不是很富有。考查从属连词辨析。if如果；though虽然；because因为；unless除非。前后句之间表达的是一种相反的让步关系，因此用though引导让步状语从句。故选B。11I dont know if it _ tomorrow, but if it _, Ill stay at home.Awill rain;

27、 rainsBwill rain; will rainCrains; will rainDrains; rains【答案】A【详解】句意：我不知道明天会不会下雨，但如果下雨，我会待在家里。考查if条件句和宾语从句。前半个句子中包含一个由if引导的宾语从句，根据时间标志词“tomorrow”可知，要用一般将来时，所以可以先排除选项CD；后半句子包含由if引导的条件状语从句，此时根据“主将从现”的原则，从句要用一般现在时，主语是第三人称单数，动词需要加s。故选A。12Hurry up, Tony! We dont have much time.Look at the heavy rain! Im

28、afraid _ we take a taxi, well still miss the train.AifBunlessCso thatDeven if【答案】D【详解】句意：快点，托尼！我们没有那么多时间了。看看外面的大雨！我们即使乘出租车去，也会错过火车的。考查连词辨析。if如果；unless除非；so that为了；even if即使。根据“Look at the heavy rain”可知，这里是“even if”引导的让步状语从句，表示雨下的很大，即使乘坐出租车也赶不上火车了，故选D。13We still know little about the Moon _ men have

29、landed on it.AsinceBthoughCifDbecause【答案】B【详解】句意：虽然人类已经登陆过月球，但我们对它仍然知之甚少。 考查连词辨析。since自从；though虽然，尽管；if如果，倘若；because因为，由于。根据“We still know little about the Moon”和“men have landed on it”可知，空前一句“对月球知之甚少”和“人类已经登上月球”之间是转折关系，空处需要填写表达转折关系的连词。故选B。14Tom has studied very hard _ he came to our school.AsinceBw

30、henCbeforeDwhile【答案】A【详解】句意：汤姆自从来到我们学校以来一直学习很努力。考查连词辨析。since自从；when当时；before在以前；while当时，“Tom has studied very hard”是现在完成时，“he came to our school”是一般过去时，所以句子是since引导的时间状语从句，故选A。15Do I have to attend the ceremony on Thursday? Oh, dont come _ you are busy.AandBbutCifDso【答案】C【详解】句意：我必须参加周四的仪式吗？如果你忙就别来了。

31、考查连词。and而且；but但是；if如果；so所以。结合句意，此处表示在你忙的条件下，就不要来了，用if引导条件状语从句。故选C。16You never really understand a person _ you consider things from his point.AuntilBwhileCbecauseDif【答案】A【详解】句意：直到你从一个人的角度考虑问题，你才会真正了解他。考查连词辨析。until直到；while当时；because因为；if如果。根据“You never really understand a person you consider things f

32、rom his point”可知，直到你站在另外一个人的角度考虑问题，你才会真正懂他，故选A。17I think our middle school life is colourful and meaningful _ I am always busy with schoolwork.AbecauseBunlessCthoughDas【答案】C【详解】句意：虽然我总是忙于学业，但是我认为我们的中学生活是丰富多彩和有意义的。考查从属连词辨析。because因为；unless除非；though尽管；as当，因为。根据“I think our middle school life is colour

33、ful and meaningful”和“ I am always busy with schoolwork”可知，前后句构成让步关系，应用though引导让步状语从句，表示“虽然学习很忙，但是中学生活很有意义”。故选C。18Dad sometimes goes to the supermarket with us _ he hates going shopping.AbecauseBsoCthoughDif【答案】C【详解】句意：爸爸有时会和我们一起去超市，虽然他讨厌购物。考查连词辨析。because因为；so因此；though尽管；if如果。根据“Dad sometimes goes to

34、 the supermarket with us.he hates going shopping.”可知，尽管讨厌购物，还是和我们去超市，用though“尽管”，引导让步状语从句。故选C。19Mom, Im already 11 years old. Can I ride a shared bike? No. Youre not allowed to do that _ you are 12.AwhenBafterCuntilDas【答案】C【详解】句意：妈妈，我已经11岁了。我可以骑共享单车吗？不。你在12岁之前是不允许骑的。考查连词辨析。when当时候；after在之后；until直到；a

35、s因为。根据“Youre not allowed to do that . you are 12.”可知，你不能骑直到你12岁；notuntil“直到才”，固定搭配，引导时间状语从句。故选C。20Teenagers should do some housework _ they finish their homework.AuntilBbutCafterDunless【答案】C【详解】句意：青少年应该在完成家庭作业之后做一些家务活。考查连词。until直到；but但是；after在之后；unless除非。根据“do some housework”及“they finish their home

36、work”可知表达做完家庭作业之后做家务活，用连词“after”引导时间状语从句。故选C。21Li Hong still failed the exam yesterday, _ she tried her best.AifBbecauseCthoughDunless【答案】C【详解】句意：尽管李红尽了最大的努力，昨天她还是没通过考试。 考查连词辨析。if如果；because因为；though尽管；unless除非。“Li Hong still failed the exam yesterday”与“she tried her best”是让步关系，用though引导让步状语从句，故选C。22

37、Many wild animals dont have a safe place to live, _ villages and farms are growing bigger and taking away their land.AbecauseBuntilCalthoughDbefore【答案】A【详解】句意：很多野生动物没有安全的地方住，因为村子和农场正在逐渐扩大，夺走了它们栖息之地。考查连词。because因为；until直到；although尽管；before在之前。根据“dont have a safe place to live”及“villages and farms are

38、 growing bigger and taking away their land”可知，后面的句子表达原因，用连词“because”。故选A。23I dont have to introduce her to you _ you know the girl.AuntilBunlessCsinceDbut【答案】C【详解】句意：我不用把她介绍给你，因为你认识那个女孩。考查连词辨析。until直到；unless除非；since因为；but但是。根据“I dont have to introduce her to you.you know the girl”可知前后两句是因果关系，前果后因，用s

39、ince引导原因状语从句。故选C。24If the singer _ to Hechi _ September 20th, please call me.Awill get; onBgets; onCgets; inDget; in【答案】B【详解】句意：如果歌手9月20日到达河池，请给我打电话。考查动词时态和介词辨析。on后加具体到某一天或具体某一天的早晨、下午和晚上；in后加某年某月某季节。此处是if引导的条件状语从句，遵循“主祈从现”的原则，又因主语“the singer”是第三人称单数，动词用三单形式，可排除A、D选项；空二后“September 20th”表示具体的某一天，用介词on

40、。故选B。25_ the weather improves, well have to cancel the outdoor picnic.AUnlessBIfCBecauseDWhen【答案】A【详解】句意：除非天气好转，否则我们将不得不取消户外野餐。 考查连词辨析。unless除非；if如果；because因为；when当时。根据“the weather improves, well have to cancel the outdoor picnic.”可知，除非天气好转，否则要取消野餐活动，用unless引导条件状语从句，故选A。26I wont go to the movies thi

41、s afternoon _ Im free.AorBunlessCbecauseDthan【答案】B【详解】句意：除非我有空，否则今天下午我不会去看电影的。考查连词辨析。or否则，或者；unless除非；because因为；than比。根据“I wont go to the movies this afternoon.Im free.”可知，后句是前句的否定条件，除非有空否则不会去看电影。故选B。27You will not get the special gift _ you finish all the tasks.AafterBbecauseCwhileDunless【答案】D【详解】句

42、意：除非你完成所有的任务，否则你不会得到特别的礼物。考查连词辨析。after在之后；because因为；while当时。unless除非。根据“You will not get the special gift you finish all the tasks.”可知，本句是unless引导的条件状语从句，表示“除非”。故选D。28Whats Cindys weekend plan?If it doesnt rain, she _ a trip to the Great Wall with her cousin.AtakesBtookCwill takeDis taken【答案】C【详解】句意

43、：辛迪的周末计划是什么？ 如果不下雨，她将和表姐去长城旅行。 考查一般将来时。根据“If it doesnt rain,”可知，这里是由if引导的条件状语从句，主句用一般将来时。符合“主将从现”原则。故选C。29Do you always sleep with the window open?Yes, _ its really cold.AunlessBsinceCbecauseDif【答案】A【详解】句意：你总是开着窗户睡觉吗？是的，除非真的很冷。考查连词的辨析。unless除非；since自从；because因为；if如果。根据应答语“Yes, its really cold.”可知，前一句回答：是的，后一句表达应与前一句形成对比，表转折。故选A。30It is impossible to finish the di