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初三英语状语从句试题答案及解析1. James with the Greens the White Tower Park if it tomorrow.A．are going to; isn’t rainy B．are going to; doesn’t rainC．is going to ; won’t rain D．is going to; isn’t rainy【答案】D【解析】句意：如果明天不下雨，James将和格林夫妇去白塔公园。
If引导的条件状语从句，主句用一般将来时从句用一般现在时。
with the Greens在此是介词短语作后置定语真正的主语是James故谓语动词用单数。
根据句意，故选D。
【考点】考查if引导的从句的用法2. Difficulties are nothing _____we are not afraid of them.A．for B．as C．if D．whether【答案】C【解析】句意：如果我们不害怕困难，困难就没有什么。
分析选项：for为了；as一边一边；if如果；whether是否。
联系上下文为条件句，因此用if引导的条件状语从句。
故选C【考点】考查连词的用法。
3. ---What are you going to do this weekend ?--- Well, we’ll clean up the city parks ________ it rains..A．if B．until C．while D．unless【答案】D【解析】句意：这个周末你们要做什么？如果不下雨的话我们要打扫城市公园。
unless 除非，如果不，相当于if not;根据句意，故选D。
【考点】考查条件状语从句。
4.“ Can you speak English ?”“ Of course , I have studied it ___ I was six years old.”A. thoughB. sinceC. before.【答案】B【解析】though虽然，尽管；since由于，自从……以来；before在……之前。
（英语）初中英语状语从句试题经典含解析一、初中英语状语从句1．Nobody believes a 92-year-old could run a marathon she passed the finishing line. People of all ages can challenge themselves.A．if B．since C．until【答案】C【解析】【详解】句意：直到她通过终点线，没有人相信一个92岁的老人能够跑马拉松。
本题考查连词的用法。
本题考查固定短语not…until直到……才……句式。
各种年龄的人都可以挑战自己。
故选C。
2．---The two old friends were ____ busy ____ with each other that they forgot the time.---Yes. They hadn’t met for over ten years, so they kept talking the whole night.A．too; to talk B．too; talking C．so; to talk D．so; talking;【答案】D【解析】试题分析：句意:这两个老朋友那么忙于交谈以至于忘了时间。
是。
他们十年多没见到了，所以他们聊了一晚上。
考查句式so…that…因此……以至于……;be busy doing忙于做……，故选D。
考点：考查so…that句式。
3．— What do you think of your junior middle school life?— I think it is colorful, I’m always busy.A．though B．while C．until D．because【答案】A【解析】【详解】本题考查：副词辨析。
选项分析：A. though虽然，尽管。
B. while虽然；然而。
中考英语状语从句专项试卷及答案解析一、选择题1．— Do you often take exercise in the morning every day?— Yes. I go jogging every morning_______there is heavy air pollution.A．until B．unless C．if D．as2．You will get a toothache _____________ you clean your teeth regularly.A．unless B．when C．though D．because3．________ she is wrong, it’s not a big deal.A．Because B．So C．Although D．But4．Sam thought his robot broken ________ Jim pointed out that he’d forgotten to turn it off. A．until B．unless C．after D．as soon as5．________ that moment, I never realized how much my father loved me.A．At B．Unless C．Until D．Since6．—Do you like the Chinese cartoon Boonie Bears: Blast into the Past?—Sure. It is ________ interesting film ________ my son wants to see it again.A．so; that B．such a; that C．so an; that D．such an; that 7．— Jenny, will you leave for the UK now?— No. It will be two weeks ________ I leave here.A．until B．since C．before D．when8．—It is a pity that the disease is still terrible at present.—Yes. It will be worse ________ we take further action to do something for it.A．unless B．since C．if D．when9．All the teenagers should keep taking exercise every day ________ they are busy studying so many subjects.A．until B．because C．unless D．though 10．There will be fewer accidents _______ all of us obey the traffic rule.A．if B．unless C．though D．because 11．Smiling is the best policy. People will smile back ________ you smile at them.A．unless B．although C．until D．when12．The astronaut lives in ________ that he has to be careful with every movement.A．such little space B．so little space C．so much space D．such more space 13．The old couple insist on living in a small village among the mountains __________ they can get closer to nature.A．until B．unless C．even though D．so that 14．Father was so proud of _________ she has made ________ he showed her works of art on Tiktok.A．what; that B．that; that C．what; what D．that; what 15．The kitchen in my flat is well designed it is a bit small.A．although B．since C．so D．because16．—Did you watch the News Network Show yesterday?— Yes, of course. I never miss it ________ I have too much homework.A．unless B．until C．if D．since17．—_________ I have tried many times, I can't work it out.—Don't give up and let's have another try together.A．Since B．Because C．Unless D．Though18．you are very busy, I won’t go to Xuzhou Amusement Land with you.A．Unless B．Whether C．Until D．Since19．— I never knew you could make such delicious handmade noodles.—I learned it from an app ________ I stayed at home during the lockdown (封锁).A．since B．before C．when D．until20．—It's time for me to go back home now.—Really? ________ you have to go, take the umbrella, it's raining outside.A．If B．When C．Until D．Unless 21．—More and more people like shopping online now.—I agree. My sister will be crazy about it ________ my parents give her enough money.A．if B．unless C．when D．while22．— What do you think of Spud Webb, the shortest player in the NBA?一 Amazing, ________he was refused many times at first.A．unless B．though C．since D．because 23．—The local snack tastes spicy and sweet.—Well, ___________ you are here, why not have a try?A．since B．because C．though D．unless24．Dr. Smith will never leave his parents ________ he is sure both of them are taken good care of.A．since B．though C．if D．unless25．___________ I hear Kenny G's recording Going Home, I always think of my hometown. A．While B．Since C．Until D．Whenever 26．—Did you stay at the party for a long time last night?—Yes. I stayed there ________ the party was over.A．until B．since C．when D．if27．—You look so sad. What happened?—The home for the elderly will be closed ________ it can get more donations.A．since B．unless C．if D．because 28．Jack is still working to high standards ________ he has made great achievements. A．until B．if C．though D．because 29．The game show was so funny that he watched it for hours ________ he realized it.A．as B．since C．before D．after30．—I hear you are going to visit Disneyland next month. May I go there with you?—I’m afraid not, ________ you have a ticket.A．if B．unless C．until D．as soon as 31．You should say it louder ________ everyone can hear you.A．in order B．to C．so that D．in order to 32．—We will go out for a picnic as we planned ________ it rains tomorrow.—You needn’t worry about the weather. It’s s unny tomorrow.A．until B．unless C．if D．when 33．Everyone makes mistakes, and no one will make progress ________ he is willing to learn from them.A．unless B．if C．though D．but34．Andrew thought there was something wrong with his robot ________ Samuel pointed out that he probably forgot to change the battery.A．until B．if C．after D．since35．— Why did your mother get ________ with you just now?—Because I made ________ many mistakes in the exam that she ________ controlled her feelings when she heard it.A．satisfied; so; really B．satisfied; such; nearlyC．angry; so; hardly D．angry; such; mainly36．—Too much homework has made me tired these days, Miss Wang.—That’s true. But a small tree won’t grow into a big tree ________ it experiences lots of winds and rains.A．if B．while C．when D．unless37．At present,it is not easy for some students to get up early ________ they have too much homework to finish.A．unless B．since C．as a result D．although38．Life is like climbing a mountain. ________ you feel tired, you will enjoy the beautiful view at the top of the mountain.A．Since B．Unless C．Because D．Though39．The pollution in the sea will be terrible ________ the Japanese government gives up their plan.A．until B．unless C．because D．if40．________ it has a long history, tim e hasn’t stopped the Forbidden City from trying to build bridges with young people through cultural products.A．Unless B．Because C．Although D．Since 41．Protecting wildlife is without doubt an important part, ________ each animal on Earth has a role to play in the ecosystem.A．since B．though C．unless D．if42．________ Jane couldn’t see his face, she could tell by his voice that he was a middle-aged man.A．Unless B．Although C．If D．Until43．Mr. Wang, can I go to play football with my classmates ________ school is over?A．as soon as B．as well as C．as good as D．as many as 44．Her job is not up to the boss's standard ________ she has worked at it for a week. A．since B．although C．if D．unless45．________ I have solved it, you can't imagine how much difficulty I faced.A．Because B．Although C．Unless D．When46．In summer, milk quickly goes bad ________ it is put into a fridge.A．though B．unless C．because D．once 47．—Labour education is an important course for students’ self-development.— Exactly. schools put it into practice, students will learn a lot.A．While B．Unless C．If D．As48．Mr. Picky won’t want to eat it ________ he’s really hungry, in which case he’ll eat almost anything.A．because B．when C．before D．unless49．The theatre will have to close ________ the government agrees to give extra money.A．if B．unless C．because D．until50．—Did you watch the Football League yesterday?—Yes, of course. I never miss it ________ I am too busy with my homework.A．unless B．until C．if D．since【参考答案】***试卷处理标记，请不要删除一、选择题1．B【详解】句意：——你经常每天早上锻炼身体吗？——对。
中考英语状语从句真题汇编(含答案)含解析一、初中英语状语从句1．Our teachers have been with us for nearly three years we came to junior high school. We should thank them for what they have done for us.A．until B．before C．since D．while【答案】C【解析】句意：自从我们来到初中，我们的老师们已经和我们在一起将近三年了，我们应该感谢他们为我们所做的一切。
本题考查连词词义辨析。
A. until 直到···才 B. before 在···之前 C. since自从 D. while当···时候。
这里是since引导的时间状语从句，主句用现在完成时态，从句用一般过去时态，其他不符合题意，故选C。
2．You'd better get home earlier today we can go out for a big meal.A．in order to B．such that C．so that D．in order【答案】C【解析】句意：你最好今天早点回家，这样我们就可以出去吃大餐了。
A. in order to 为了，后跟动词原形；B. such that没有此用法；C. so that为了，引导目的状语从句；D. in order+that+从句，引导目的状语从句。
we can go out for a big meal表示目的的完整句子，所以使用连词词组so that。
故选：C。
3．________ there is danger on the internet, online insurance is still popular among the young. A．Unless B．Though C．Since D．Until【答案】B【解析】【详解】句意：虽然网上存在危险，但网上保险在年轻人中仍然很流行。
【英语】中考英语状语从句真题汇编(含答案)含解析一、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．China Dream will be able to come true we try our best.A．unless B．until C．although D．as long as【答案】D【解析】【详解】句意：只要我们尽全力，中国梦将会实现。
考查连词。
A. unless除非；B. until直到；C. although虽然；D. as long as只要。
根据句意可知，是只要我们尽全力，中国梦将会实现。
故选D3．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。
2024中考英语真题分类汇编题型之连词及状语从句(解析版)1.（2024四川宜宾）4. She stopped talking her mother came into the room.A. as soon asB. unlessC. though【答案】A【解析】句意：她妈妈一进到房间里，她就停止了说话。
A. as soon as 一----就---； B. unless 除非； C. though尽管；这里是考察连词，依据She stopped talking 和her mother came into the room.之间的关系，可知是妈妈一进到房间里，她就停止了说话；故选A2.(2024湖北宜昌)3. ---It has been much easier for me to go to work________ shared bikes appeared.----But they also caused plenty of problems.A. sinceB. beforeC. unlessD. though【答案】A【解析】句意：——自从共用自行车出现以来，我就更简单去上班了。
——但它们也造成了很多问题。
考查连词辨析题。
A. since自从……，后接时间名词或从句，表一段时间，用于现在完成时；B. before在……以前，表时间；C. unless除非，表条件；D. though尽管，表让步。
本句是时间状语从句，可解除CD两项。
依据句意结构和语境，可知before不合句意，故选A。
3.(2024 湖北黄冈)5. -- Which show do you prefer, Running Man or The Reader?-- The reader, of course. ________ I _______ my brother likes it.A. Both; andB. Neither; norC. Either; orD. Not only; but also【答案】D【解析】句意：——《跑男》和《朗读者》，你更喜爱哪一个节目？——当然是《朗读者》，不仅我，而且我哥哥都喜爱它。
中考英语状语从句试题经典含解析一、初中英语状语从句1．______ many children like KFC, I think they’d better try not to eat it too often. A．Because B．When C．Although D．If【答案】C【解析】考查从句的知识。
句意“尽管很多孩子喜欢吃KFC，单数我认为他们最好不要经常吃。
”because引导原因状语从句；when引导时间状语从句；although引导让步状语从句；if引导条件状语从句。
题目表示的是让步。
故选C。
2．一When did you leave your office yesterday?一 I finished the project.A．Until B．While C．When D．Not until【答案】D【解析】句意：昨天你什么时候离开你的办公室的？——直到我完成那个任务。
本题考查连词。
A. Until 直到···时候才结束，要与延续性动词连用；B. While 当···时候；C. When 当···时候；D. Not until直到···时候才开始，与非延续性动词连用；句子中finished（完成）是非延续性动词，故选D3．You will fall behind others ______ you work hard.A．if B．unless C．though D．since【答案】B【解析】试题分析：句意：如果你不努力学习，你会落后别人。
A.because因为；B. If如果；C. Unless如果不； D. Though虽然。
结合句意，故选B考点：考查连词的用法.4．__________ you have trie d it on, you can’t imagine how pretty the new style skirt is. A．Because B．Although C．Unless D．When【答案】C【解析】本题的含义是如果你不尝试一下，你将不能想象一下这件新款式的裙子有多么漂亮，unless表示如果不的意思，故本题选C。
中考英语状语从句练习题30题含答案解析1. I will call you ____ I arrive in Beijing.A. as soon asB. whileC. untilD. since答案：A。
解析：本题考查时间状语从句引导词的用法。
as soon as表示一就，从句用一般现在时表将来，主句用一般将来时，符合句子语境。
while强调主句和从句动作同时进行，这里不符合题意。
until 表示直到，通常主句为否定句，与本题不符。
since表示自从，引导的从句通常用一般过去时，主句用现在完成时，也不符合本题。
2. ____ she was reading, her mother came into the room.A. WhenB. BeforeC. AfterD. Since答案：A。
解析：本题考查时间状语从句引导词。
when可表示当的时候，从句中的动作可以是短暂性的也可以是持续性的，这里read 是持续性动作，when符合语境。
Before表示在之前，After表示在之后，均不符合句子逻辑。
Since表示自从，与本题逻辑不符。
3. We will go to the park ____ it doesn't rain tomorrow.A. ifB. thoughC. becauseD. so答案：A。
解析：本题考查条件状语从句（可视为一种特殊的时间状语从句）。
if表示如果，引导条件状语从句，从句用一般现在时表将来，主句用一般将来时，这里表示如果明天不下雨就去公园。
though 表示虽然，because表示因为，so表示所以，均不符合题意。
4. You can't see the stars clearly ____ there is too much light pollution.A. whereB. whenC. ifD. because答案：D。
解析：本题考查原因状语从句。
【英语】中考英语状语从句题20套(带答案)及解析一、初中英语状语从句1．一Last night I went to a concert of Chinese folk music. Erquan Yingyue was so sad but beautiful that I sensed a strong sadness and pain under the beauty.一So it was. The musician who played it last night to play the erhu since hevery young.A．learned; was B．has learned; amC．has learned; was D．learned; has been【答案】C【解析】句意：------昨晚我去听了一场中国民间音乐会。
二胡映月是如此悲伤，但美丽，在其美丽的下面我感觉到一种强烈的悲伤和痛苦。
-------的确是这样。
昨晚演奏的音乐家从小就学会了演奏二胡。
Since引导的时间状语从句，从句是一般过去式，主句用现在完成时；故选C。
2．I won't go he comes back.A．until B．while C．when D．why【答案】A【解析】句意：直到他回来，我才走。
A. until 直到； B. while当---时候； C. when当---时候； D. why为什么；not---until--- 直到---才---；故选A3．一When did you leave your office yesterday?一 I finished the project.A．Until B．While C．When D．Not until【答案】D【解析】句意：昨天你什么时候离开你的办公室的？——直到我完成那个任务。
本题考查连词。
A. Until 直到···时候才结束，要与延续性动词连用；B. While 当···时候；C. When 当···时候；D. Not until直到···时候才开始，与非延续性动词连用；句子中finished（完成）是非延续性动词，故选D4．Rony will get a chance t o work in this company ________ he doesn’t pass the interview. A．unless B．when C．if D．after【答案】A【解析】【详解】句意“除非罗尼没有通过面试，否则他将有机会在这个公司上班”。
中考英语状语从句真题汇编(含答案)及解析一、初中英语状语从句1．Pandas are facing danger!The situation won’t change humans stop killing.A．unless B．though C．if D．after【答案】A【解析】试题分析：句意：熊猫面临危险。
如果人们不停止杀害熊猫，形势不会改变。
此题考查连词，A如果不；B尽管；C如果；D在之后。
根据句意，应选A。
考点：考查连词。
2． Lucy knew nothing about it _____ her sister told her.A．because B．until C．if D．since【答案】B【解析】试题分析：句意：露西直到她姐姐告诉她才知道这件事。
Because因为； until直到； if如果； since自从。
Not···until直到···才，是一个固定句型。
所以选B。
考点：考查连词。
3．I won't go he comes back.A．until B．while C．when D．why【答案】A【解析】句意：直到他回来，我才走。
A. until 直到； B. while当---时候； C. when当---时候； D. why为什么；not---until--- 直到---才---；故选A4．---Mom, shall we have supper now?---Oh, we won’t have supper_______ your dad comes back.A．until B．since C．while D．after【答案】A【解析】试题分析：句意：-妈妈，我们现在吃晚饭好吗？ -哦，直到你爸爸回来我们才可以吃晚饭。
until直到；since自从；while当……的时候；after在……之后。
【英语】中考英语状语从句试题经典及解析一、初中英语状语从句1．If the singer ______ to Zigong ______ September 20th， please call me．A．will get；on B．gets；onC．gets；in【答案】B【解析】【详解】句意：如果歌手9月20日到自贡，请给我打电话。
if引导的条件状语，时态要满足“主祈从现”，所以第一空是一般现在时态，主语单数，谓语动词变第三人称单数用gets；表示具体某一天用介词on。
In用在一天中的上午，下午或晚上，用在季节，月份。
根据题意，故选B。
【点睛】if和unless引导的条件状语从句主将从现常见的有以下几种情况：一、条件状语从句的主句是一般将来时,那么从句常常用一般现在时如：When I grow up,I’ll be a nurse and look after patients我长大后要当一名护士,照顾病人二、如果主句是祈使句,那么从句通常要用一般现在时如：Don’t laugh at me when I make a mistake.我犯错误的时候不要笑话我.三、如果主句是含有情态动词的一般现在时,根据需要从句多用现在进行时如：You should be quiet when you are in the reading room在阅览室时应保持安静2．— When did you go to bed last night?— ____________ I finished my homework.A．Until B．Not until C．When D．While【答案】B【解析】not …until 表示直到…才，与短暂性动词连用，故选B3．Many people do not realize the importance of health ______ they have fallen ill.A．until B．while C．when D．after【答案】A【解析】试题分析：句意：一些人直到失去了健康才意识到它的重要性。
本题考查的是not…until 句型，“直到……才”。
For为了；but 但是；as 作为。
故选A。
考点：考查连词的用法。
4．-Have you improved your spoken English？-Not yet．I'll try my best______I am not good at it now．A．so B．although C．but D．until【答案】B【解析】【详解】句意：——你提高你的英语口语了吗？——还没有．虽然我现在还不擅长，但是我会尽力的．考查连词辨析。
A. so所以；B. although 虽然；C. but但是；D. until直到。
根据语境推测句意是——你提高你的英语口语了吗？——还没有．虽然我现在还不擅长，但是我会尽力的．在这里两个句子之间存在一个相反的让步关系，though/although/even though“虽然；尽管”，引导让步状语从句，故选B．【点睛】本题主要考查连词的用法，连词在句子中主要起联系上下文的作用，他们之间的区别就是表示逻辑关系的不同，所以在解题时先要理解上下文含义，然后根据上下文逻辑关系选择合适的连词．前后句之间是让步关系．5．--Where is the comic book?--I brought it to you ________you were in the reading room yesterday.A．when B．if C．because D．before【答案】A【解析】句意：-漫画书在哪里？-昨天当你在阅览室的时候我就拿给你了。
when当…时候；if如果，引导条件状语从句；because因为，引导原因状语从句；before在…之前，引导时间状语从句。
根据句意可知，这里表示“当你在阅览室的时候”，故应选A。
6．一What will you do then?一I will telephone the police and complain about it the noise stops soon.A．unless B．though C．because D．if【答案】A【解析】【详解】句意：----那么你会怎么做？-----我会给警察打电话投诉，除非噪音很快停止。
考查连词辨析。
A. unless除非，如果不，引导否定的条件状语从句；B. though虽然，尽管，引导让步状语从句；C. because因为，引导原因状语从句；D. if如果，引导条件状语从句。
根据句意可知后句表示否定条件，填unless；选A。
7．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。
8．The Bund looks _______beautiful at night that it attracts a lot of tourists every day.A．very B．so C．such D．quite【答案】B【解析】【详解】句意：外滩在晚上看起来很漂亮，每天都吸引了很多游客。
考查固定结构辨析。
so/such…that是固定结构，表示“如此……以至于”，引导结果状语从句，可排除AD两项。
so修饰形容词或副词，such修饰名词或名词性短语。
本句beautiful（漂亮的）是形容词，需用so；根据句意结构和语境，可知选B。
9．—Tom, do you know if Sam _______ to my party next week?—I think he will come if he __________.A．comes; will invite B．will come; will be invitedC．comes; invites D．will come; is invited【答案】D【解析】解析：句意：——汤姆，你知道山姆下个星期会来参加我的聚会吗？——我认为如果他被邀请了他会来的。
第一句中的if翻译为“是否”，引导宾语从句；根据句意，可知从句的时态应该用一般将来时；第二句中的if翻译为“如果”，引导条件状语从句，在if引导的条件状语从句中，要用一般现在时代替一般将来时，由句意可知用被动语态，故选D。
10．—Winter swimming is exciting, but one can’t do it ________ he or she has got some training. — Exactly! It can be dangerous.A．after B．unless C．if D．while【答案】B【解析】句意：——冬泳是令人兴奋的，但除非他或她接受了一些训练，否则是不行的。
——没错！这可能是危险的。
A. after在……之后；B. unless 除非；C. if 如果；D. while当……的时候。
根据语境和句意可知用unless。
故选B。
11．_____there was no obvious evidence, most people didn’t think he was guilty of the robbery.A．When B．While C．Since D．As【答案】C【解析】【详解】句意“由于没有明显的证据，大多数人认为他没有犯抢劫罪”。
A.当……时候（引导时间状语从句）；B.当……时候（引导时间状语从句）；C.since“因为”、“既然”，侧重主句，从句表示显然的或已为人所知的理由，语气比because稍弱；D. as因为，表示的“原因”是双方已知的事实或显而易见的原因，或者理由不是很重要。
根据句意可知，因为没有明显的证据，且这个理由很重要，所以人们认为他没有犯抢劫罪，故选C12．___________ she couldn’t see his face, she could tell by his voice that he was young. A．Unless B．If C．Because D．Though【答案】D【解析】【详解】句意：虽然她看不见他的脸，但是她能够通过声音分辨出他很年轻。
A. Unless除非；B. If 如果；C. Because因为；D. Though尽管。
根据语境以及上下文，本题考查的是连词的用法。
结合句意可知，在这里两个句子之间存在一个相反的让步关系，though/although/even though"虽然；尽管"，引导让步状语从句，符合句意。
故答案选D。
13．We don't know the love of our parents _______ we become parents ourselves one day. A．untilB．afterC．whenD．since【答案】A【解析】句意：直到有一天我们成为父母，才知道父母的爱。
本题考查连词。
A. until到…为止，在…以前; 直到…才;B. after在…以后;C. when当···时候；D. since自从; 从…以来;Not until 直到···才···；不到···不···，是固定搭配，故选A。
14．-- Can’t I park my car free here?-- You can, for four hours, __________ you spend over 100 yuan in this supermarket. A．though B．if C．unless【答案】B【解析】【详解】句意：-我不能把车免费停在这里吗？- 如果你在这家超市花费超过100元，你可以免费停车四个小时。
though 虽然；if 如果；unless 除非。
