新初中英语语法知识—状语从句的单元检测
新初中英语语法知识—状语从句的专项训练及答案
一、选择题1.—Are you going to Mary’s party tonight?—No, I won’t go__________ you go.A.because B.when C.unless D.though2.________ haburgers are junk food, many children still like them.A.If B.Unless C.Because D.Although 3.What does she want to do when she ________some money?A.is going to save B.saves C.will save4.It’s________a difficult question that few of us can answer it.A.quite B.so C.such D.very5.—I’m afraid I can’t finish the job in such a short time.—Don’t worry. Can you do it if you_______ two more hours.?A.give B.are given C.will give D.will be given 6.— What shall we do now?—__________ it’s raining hard, let’s stay at home.A.So B.Since C.Though D.Otherwise 7.—Mum, will our trip be cancelled?—No, we won’t put it off________there is a natural disaster.A.if B.whether C.unless D.when8.—Do you think if I am suitable for this IT job?—You can’t get the job________ you have experience in the computer industry.A.if B.unless C.because D.since9.I’ll finish the task, ________ how long it tak es.A.even though B.so that C.no matter 10.—Mom, I’m leaving for Beijing tomorrow.—That’s nice. You’d better ring me up________you get there.A.as soon as B.until C.while11.--Do you know when ____? I miss him very much.--Don't worry. I will tell you as soon as ____.A.will he come, he comes B.he will come, he comesC.he comes, he will come D.he will come, he will come12.— Celia,join us in the Super Summer Camp if it this weekend.—.I'd love to. But nobody knows if it .A.is fine; rains B.is fine; will rain C.will be fine; will rain D.will be fine; rains 13.I’ll go to visit my aunt in England the summer holidays start.A.as soon as B.since C.unless14.Joan was walking in the street________ she saw the accident.A.when B.while C.after D.before15.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.while16.— When shall we start?—Let’s wait ________ the rain stops.A.if B.as C.until D.since17.The policeman asks the child not to cross the street ________ the traffic light turns green. A.when B.until C.because D.after18.—How are you going to spend this weekend?—_________ the weather is fine, we’ll c limb Mount Tai.A.As well as B.As good as C.As soon as D.As long as19.My father was watching TV ______ my mother was cooking.A.when B.untilC.while D.as soon as20.Her only problem, ________ you can call it a problem, is that she expects to be successful all the time.A.if B.because C.though D.since21.—My son hardly even eats vegetables________ it’s good for his health.— Not a good habit.A.and B.but C.so D.although 22.— What will you do ________it snows tomorrow?— I will go out to take photos and make a snowman.A.if B.though C.unless23.—It’s raining heavily outside.—So stay here and don’t go out ______ it stops.A.when B.until C.if24.___my cousin was practicing the guitar, his elder sister came into the room.A.Since B.While C.Though D.Because 25.Now most families have only one child _____ our country’s one-child policy.A.so B.because C.because for D.because of【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】【详解】句意:——你今晚打算去Mary的派对吗?——不,除非你去。
新初中英语语法知识—状语从句的基础测试题含解析
一、选择题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 2.Although he _______up very early this morning, _______he was still late for school. A.get ; and B.got;/ C.gets ;so D.got ; but3.I still have difficulty ________the article________ there are few new words in it.A.to understand; because B.understand ; though C.understanding ; if D.understanding ; though4.—Do you know________the meeting will last?—________the agreement is reached.A.how long; Not until B.when; Not until C.how long; Until D.when; Until 5.The little girl is crying,she can’t find her parents.A.and B.but C.so D.because6.I can’t understand that the woman often complains_______she has got a well-paid job and a happy family.A.whenever B.since C.until D.though7.“A white elephant” means something that is useless, ___________ it may cost a lot of money. A.unless B.until C.since D.although8.—________ will the conversation begin?—________ six o’clock.A.How long; Not until B.How long; UntilC.How soon; Not until D.How soon; Until9.It was ____ bad weather ____ I had to stay at home.A.too, to B.so, that C.such, that D.as, as10.You will never gain success ______ you fully put your effort into your work.A.although B.unless C.if D.because11.Mr. White tells us the calls meeting will be cancelled if no agreement _________ tomorrow. A.is reached B.will be reachedC.is going to be reached D.has been reached12.______ you go to Sheshan, you’ll see a famous church and an observatory.A.Although B.What C.If D.Because 13.—Are you going to Mary’s party tonight?—No, I won’t go__________ you go.A.because B.when C.unless D.though14.___my cousin was practicing the guitar, his elder sister came into the room.A.Since B.While C.Though D.Because15.Tim is ______ his twin brother. They are both 180 centimeters tall.A.taller than B.shorter than C.as tall as D.not so tall as 16.______________ he is very young, _________________ he can do many things. A.Although;but B.Although;/C./;although D.But;although17.You can’t watch TV ________ you finish your homework.A.after B.if C.when D.until18.I can’t drive my father’s car ________I get my driving license.A.unless B.because C.if D.since 19.Mother was cooking in the kitchen________ Jack was watching TV in the room.A.if B.as C.when D.while20.I didn't accept his help ________ I wanted to try it myself.A.because B.thoughC.until D.unless21.________ I feel tired, ________ I don’t want to stop working.A.Though; but B.But; / C.Though; / D.Because; / 22.My father was watching TV ______ my mother was cooking.A.when B.untilC.while D.as soon as23.Her only problem, ________ you can call it a problem, is that she expects to be successful all the time.A.if B.because C.though D.since24.It ________ heavily when I left the movie theater.A.rains B.was raining C.is raining D.will rain25.________ you've tasted them, you can't imagine how delicious the dishes are. A.Because B.Although C.Unless D.So【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析: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。
最新初中英语语法知识—状语从句的单元汇编及答案(1)
一、选择题1.--Do you know when ____? I miss him very much.--Don't worry. I will tell you as soon as ____.A.will he come, he comes B.he will come, he comesC.he comes, he will come D.he will come, he will come2.We always don't realize time goes by, ________we're playing games.A.while B.although C.unless D.if3.You will never get anywhere you set a goal. So whatever we do, we should first have a goal.A.unless B.because C.though4.___________ many people may surf the Internet for the latest news, it is impossible that the newspaper will disappear.A.Beacause B.Though C.Since D.Unless5.Jenny often eats a lot of fruit andvegetables_______she knows they are good for health.A.because B.but C.or6.Although he _______up very early this morning, _______he was still late for school. A.get ; and B.got;/ C.gets ;so D.got ; but 7.—Do you know________the meeting will last?—________the agreement is reached.A.how long; Not until B.when; Not until C.how long; Until D.when; Until8.I don’t like nuts ________ they are too hard.A.if B.after C.when D.because9.The little girl is crying,she can’t find her parents.A.and B.but C.so D.because 10.—I’m afraid I can’t finish the job in such a short time.—Don’t worry. Can you do it if you_______ two more hours.?A.give B.are given C.will give D.will be given 11.—________ will the conversation begin?—________ six o’clock.A.How long; Not until B.How long; UntilC.How soon; Not until D.How soon; Until12.I ________ at the bus stop when I ________ my first teacher yesterday morning.A.was waiting; met B.waited; was meetingC.was waiting; was meeting D.waited; met13.—If it________tomorrow, I’ll go fishing.— May I go along with you?A.didn’t rain B.won’t rain C.doesn’t rain14.Mr.Green doe sn’t have any hobbies________ you call watching TV a hobby.A.though B.unless C.because15.You will never gain success ______ you fully put your effort into your work.A.although B.unless C.if D.because16.Mr. White tells us the calls meeting will be cancelled if no agreement _________ tomorrow. A.is reached B.will be reachedC.is going to be reached D.has been reached17._______you can sleep well, you will lose the ability to concentrate, plan and stay active after one or two nights.A.Once B.Unless C.If D.When18.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.while19.______________ he is very young, _________________ he can do many things. A.Although;but B.Although;/C./;although D.But;although20.— When shall we start?—Let’s wait ________ the rain stops.A.if B.as C.until D.since21.It’s not your turn yet. Please wait on the chair until you________.A.have called B.will call C.are calling D.are called 22.—How’s the weather tomorrow?—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.A.will rain; will rain B.rains; rainsC.rains; will rain D.will rain; rains23.The policeman asks the child not to cross the street ________ the traffic light turns green. A.when B.until C.because D.after24.—How are you going to spend this weekend?—_________ the weather is fine, we’ll climb Mount Tai.A.As well as B.As good as C.As soon as D.As long as25.--______ will the discussion last?--______ we reach an agreement.A.How long; Not until B.When; Not untilC.How long, Until D.When, Until【参考答案】***试卷处理标记,请不要删除一、选择题1.B解析:B【解析】【分析】【详解】句意:--你知道他什么时候来吗? 我很想念他。
必备英语 状语从句单元检测题含答案解析
必备英语状语从句单元检测题含答案解析一、初中英语状语从句1.—What’s the weather like this weekend?— It will be bad weather that we can’t go on the picnic.A.such a B.such C.so a D.so【答案】B【解析】句意:——这个周末天气怎么样?——天气太糟了,我们不能去野餐了。
因为weather为不可数名词,因此不用冠词。
A/C不对。
再因为中心词为名词,用such而不用so。
故选B。
点睛:such……that与so……that的区别:so……that和such……that的意思均为"如此……以致……",都用来引导结果状语从句。
但二者用法不尽相同,现归納如下:so……that结构中的so为副词,后面跟形容词或副词;such…that中的such为形容词,后面接名词(名词前可以有形容词修饰)。
如:He became so angry that he couldn’t speak.他变得很生气,以致说不出话来。
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。
新初中英语语法知识—状语从句的经典测试题及答案解析
4.A
解析:A
【解析】
句意:----你能告诉我你什么时候到吗?-----我不确定。但我明天一到那儿就给你打电话。A. arrive一般现在时;B. arrived一般过去时;C. will arrive一般将来时;D. am going to arrive一般将来时。as soon as引导的时间状语从句表将来的事时,这时主句用一般将来时,从句用一般现在,即:主将从现。本句主句是一般将来时,从句用一般现在时,故选A。
解析:A
【解析】
【分析】
考点:时态
【详解】
句意:亨利一到,他就要给我们做一个报告。当主句描述将来动作时,英语条件状语从句中用一般现在时态表示将来的动作;主语单三,谓语动词用单数形式;故选A。
3.A
解析:A
【解析】
【详解】
句意:除非你设定一个目标,否则你永远也到不了任何地方。所以无论我们做什么,我们首先应该有一个目标。
11.D
解析:D
【解析】
【分析】
【详解】
句意:“白象”指的是无用的东西,尽管它可能要花很多钱。考查连词辨析。A. unless除非,引导条件状语从句;B. until直到……才……,引导时间状语从句;C. since由于,引导原因状语从句;D. although尽管,引导让步状语从句。根据句意,本句是让步状语从句,故选D。
一、选择题
1.—________ will the conversation begin?
—________ six o’clock.
A.How long; Not untilB.How long; Until
最新初中英语语法知识—状语从句的基础测试题及答案(1)
一、选择题1.— What shall we do now?—__________ it’s raining hard, let’s stay at home.A.So B.Since C.Though D.Otherwise 2.The lady was _____ happy _____she couldn't say a word when she heard the good news.()A.too; to B.very; becauseC.so;that3.— Celia,join us in the Super Summer Camp if it this weekend.—.I'd love to. But nobody knows if it .A.is fine; rains B.is fine; will rain C.will be fine; will rain D.will be fine; rains 4.________ haburgers are junk food, many children still like them.A.If B.Unless C.Because D.Although5.I watched the World Cup in a bar last night and I home 1:00 in the morning. A.go; until B.went; untilC.didn’t go; until D.won’t go; until6.You will never get anywhere you set a goal. So whatever we do, we should first have a goal.A.unless B.because C.though7.— Can you tell me when you are going to arrive there?—I’m not sure. But I’ll ring you up as soon as I _____there tomorrow.A.arrive B.arrived C.will arrive D.am going to arrive 8.Li Lei didn’t go to bed his mother came back last night.A.after B.until C.because9.I still have difficulty ________the article________ there are few new words in it.A.to understand; because B.understand ; though C.understanding ; if D.understanding ; though10.I don’t like nuts ________ they are too hard.A.if B.after C.when D.because 11.Amy is_______ careful that she made_______ mistakes in her last exam.A.so; so few B.such; so little C.so; such few D.such; such little 12.—You look so sleepy. What’s the matter with you , Carmen?—I’ve been working for ten hours. I am__________tired ___________ I want to sleep.A.so ; that B.such; thatC.between; and D.neither; nor13.--- What was the party like?--- Wonderful. It’s years ____ I enjoy ed myself so much.A.since B.after C.when D.before14.— What should I do if I ______ behind others in my study?— You are going to work really hard to catch up with them.A.fall B.will fall C.fell15.________decision you make, you must be prepared for the worst.A.Whoever B.Wherever C.Whenever D.Whatever 16.—________ will the conversation begin?—________ six o’clock.A.How long; Not until B.How long; UntilC.How soon; Not until D.How soon; Until17.________ they are sisters, they don’t look the same.A.Though B.Because C.But18.—If it________tomorrow, I’ll go fishing.— May I go along with you?A.didn’t rain B.won’t rain C.doesn’t rain19.We really thank our teachers for what they have done for us.They have been with us for nearly three years we came to middle school.A.since B.before C.until20.You will never gain success ______ you fully put your effort into your work. A.although B.unless C.if D.because21.If you _______ someone, you invite them to flight or compete with you in some way. A.encourage B.challenge C.introduce22.I’ll go to visit my aunt in England the summer holidays start.A.as soon as B.since C.unless23.______________ he is very young, _________________ he can do many things. A.Although;but B.Although;/C./;although D.But;although24.— When shall we start?—Let’s wait ________ the rain stops.A.if B.as C.until D.since25.______ we have different opinions from time to time, we are still good friends. A.Until B.After C.Because D.Though【参考答案】***试卷处理标记,请不要删除一、选择题1.B解析:B【解析】【分析】【详解】句意:——我们现在该做什么?——既然雨下得这么大,就让我们呆在家里吧。
最新初中英语语法知识—状语从句的基础测试题及解析
一、选择题1.—Has Jim known the good news?—Not yet. I will tell him about it ________ he comes back.A.while B.until C.as soon as D.since2.We always don't realize time goes by, ________we're playing games.A.while B.although C.unless D.if3.— Can you tell me when you are going to arrive there?—I’m not sure. But I’ll ring you up as soon as I _____there tomorrow.A.arrive B.arrived C.will arrive D.am going to arrive 4.You can stay healthy________you exercise every day.A.as long as B.so C.as soon as 5.Although he _______up very early this morning, _______he was still late for school. A.get ; and B.got;/ C.gets ;so D.got ; but6.I still have difficulty ________the article________ there are few new words in it.A.to understand; because B.understand ; though C.understanding ; if D.understanding ; though7.What does she want to do when she ________some money?A.is going to save B.saves C.will save8.—Do you know________the meeting will last?—________the agreement is reached.A.how long; Not until B.when; Not until C.how long; Until D.when; Until 9.He offered________valuable suggestions ________ few people disagreed.A.such, that B.very, that C.so, that D.too, that 10.— Would you please ask Tom to come to my office?—Sure, I will tell you about it as soon as he _______back tomorrow.A.will come B.came C.comes D.is coming 11.______ we have different opinions from time to time, we are still good friends.A.Until B.After C.Because D.Though 12.— Celia,join us in the Super Summer Camp if it this weekend.—.I'd love to. But nobody knows if it .A.is fine; rains B.is fine; will rain C.will be fine; will rain D.will be fine; rains 13.________decision you make, you must be prepared for the worst.A.Whoever B.Wherever C.Whenever D.Whatever 14.My father was watching TV ______ my mother was cooking.A.when B.untilC.while D.as soon as15.When he , I’ll tell him the news. But I don’t know when he .A.comes; will come B.will come; comesC.comes; comes D.will come; will come16.You will never gain success ______ you fully put your effort into your work.A.although B.unless C.if D.because17.If you _______ someone, you invite them to flight or compete with you in some way. A.encourage B.challenge C.introduce18.I felt very happy, ___________ I didn't win the singing competition.A.though B.if C.so D.because19.________ you've tasted them, you can't imagine how delicious the dishes are. A.Because B.Although C.Unless D.So20.—The air pollution is terrible.—It will be worse _____ everyone plays a part in saving the environment.A.If B.unless C.until21.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.while22.______________ he is very young, _________________ he can do many things. A.Although;but B.Although;/C./;although D.But;although23.Mr. Huang decided to buy that CD player ________ it was expensive.A.even though B.so that C.as soon as D.as if 24.—How’s the weather tomorrow?—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.A.will rain; will rain B.rains; rainsC.rains; will rain D.will rain; rains25.— What shall we do now?—__________ it’s raining hard, let’s stay at home.A.So B.Since C.Though D.Otherwise【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】【分析】【详解】句意:——吉姆知道这个好消息?——还不知道。
必备英语【初中英语】《状语从句》单元测试题(含答案) 含答案解析
必备英语【初中英语】《状语从句》单元测试题(含答案) 含答案解析一、初中英语状语从句1.We all know that we won't enjoy good health ______ we often exercise.A.though B.if C.when D.unless【答案】D【解析】【详解】句意:我们都知道如果我们不经常锻炼,我们将不会享有好的健康。
考查连词的用法。
A. though虽然,尽管;B. if如果;C. when当......的时候;D. unless除非,如果不。
根据句意:我们都知道如果我们不经常锻炼,我们将不会享有好的健康。
只有D项符合题意。
故选D。
【点睛】主将从现是指在时间状语从句和条件状语从句中,如果主句是一般将来时,从句用一般现在时替代一般将来时。
常见的有以下四种情况: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,根据需要从句多用一般现在时如:You should be quiet when you are in the reading room在阅览室时应保持安静四. 如果if的条件状语从句遇到变换间接和直接时 , 祈使句应用not to....如; She said not to close the window常见的时间状语从句的连词有:as soon as,when,while ,as,until等。
2.Tony has had to cook by himself ________ his mother went on business to Guangzhou. A.since B.after C.during D.when【答案】A【解析】【详解】句意:自从妈妈去广州出差以来,托尼不得不自己做饭。
最新初中英语语法知识—状语从句的单元检测(2)
一、选择题1.________ you've tasted them, you can't imagine how delicious the dishes are. A.Because B.Although C.Unless D.So2.I ________ at the bus stop when I ________ my first teacher yesterday morning.A.was waiting; met B.waited; was meetingC.was waiting; was meeting D.waited; met3.I watched the World Cup in a bar last night and I home 1:00 in the morning. A.go; until B.went; untilC.didn’t go; until D.won’t go; until4.You will never get anywhere you set a goal. So whatever we do, we should first have a goal.A.unless B.because C.though5.— Can you tell me when you are going to arrive there?—I’m not sure. But I’ll ring you up as soon as I _____there tomorrow.A.arrive B.arrived C.will arrive D.am going to arrive 6.I don’t like nuts ________ they are too hard.A.if B.after C.when D.because 7.Amy is_______ careful that she made_______ mistakes in her last exam.A.so; so few B.such; so little C.so; such few D.such; such little 8.--- What was the party like?--- Wonderful. It’s years ____ I enjoyed myself so much.A.since B.after C.when D.before9.—Do you think if I am suitable for this IT job?—You can’t get the job________ you have experience in the computer industry.A.if B.unless C.because D.since10.--______ will the discussion last?--______ we reach an agreement.A.How long; Not until B.When; Not untilC.How long, Until D.When, Until11.I don’t like science _______it’s difficult.A.but B.so C.because12.The lady was _____ happy _____she couldn't say a word when she heard the good news.()A.too; to B.very; becauseC.so;that13.I felt very happy, ___________ I didn't win the singing competition.A.though B.if C.so D.because14.___my cousin was practicing the guitar, his elder sister came into the room.A.Since B.While C.Though D.Because 15.—The air pollution is terrible.—It will be worse _____ everyone plays a part in saving the environment.A.If B.unless C.until16.The bus driver always says to us: “Don’t get off ______ the bus stops.”A.when B.whileC.until D.if17.It’s not your turn yet. Please wait on the chair until you________.A.have called B.will call C.are calling D.are called 18.Mr. Huang decided to buy that CD player ________ it was expensive.A.even though B.so that C.as soon as D.as if 19.It was________a difficult task that nobody can finish it on time.A.so B.too C.enough D.such 20.—How’s the weather tomorrow?—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.A.will rain; will rain B.rains; rainsC.rains; will rain D.will rain; rains21.Linda was just going out shopping________the telephone rang.A.while B.when C.after D.because 22.—My son hardly even eats vegetables________ it’s good for his health.— Not a good habit.A.and B.but C.so D.although 23.—It’s raining heavily outside.—So stay here and don’t go out ______ it stops.A.when B.until C.if24.— What should I do if I ______ behind others in my study?— You are going to work really hard to catch up with them.A.fall B.will fall C.fell25.Sam won’t make any progress ______ he studies harder than before.A.if B.when C.because D.unless 【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】【分析】【详解】句意:除非你尝过这些菜,否则你很难想象出它们有多么美味。
初中英语语法知识—状语从句的经典测试题附答案解析
一、选择题1.I’ll finish the task, ________ how long it takes.A.even though B.so that C.no matter2.—the water was cold , Wei Qinggang jumped into it to save others.A.Although B.When C.If D.Because3.I watched the World Cup in a bar last night and I home 1:00 in the morning. A.go; until B.went; untilC.didn’t go; until D.won’t go; until4.We always don't realize time goes by, ________we're playing games.A.while B.although C.unless D.if5.— Can you tell me when you are going to arrive there?—I’m not sure. But I’ll ring you up as soon as I _____there tomorrow.A.arrive B.arrived C.will arrive D.am going to arrive 6.Jenny often eats a lot of fruit andvegetables_______she knows they are good for health.A.because B.but C.or7.He offered________valuable suggestions ________ few people disagreed.A.such, that B.very, that C.so, that D.too, that8.I don’t like nuts ________ they are too hard.A.if B.after C.when D.because9.I can’t understand that the woman often complains_______she has got a well-paid job and a happy family.A.whenever B.since C.until D.though10.______ we have different opinions from time to time, we are still good friends.A.Until B.After C.Because D.Though11.--- What was the party like?--- Wonderful. It’s years ____ I enjoyed myself so much.A.since B.after C.when D.before12.All of us don't like this game, ____ it's too boring.A.and B.so C.because13.--______ will the discussion last?--______ we reach an agreement.A.How long; Not until B.When; Not untilC.How long, Until D.When, Until14.—It’s raining heavily outside.—So stay here and don’t go out ______ it stops.A.when B.until C.if15.It was ____ bad weather ____ I had to stay at home.A.too, to B.so, that C.such, that D.as, as16.You will never gain success ______ you fully put your effort into your work.A.although B.unless C.if D.because17.Sam won’t make any progress ______ he studies harder than before.A.if B.when C.because D.unless18._______you can sleep well, you will lose the ability to concentrate, plan and stay active after one or two nights.A.Once B.Unless C.If D.When19.I’ll go to visit my aunt in England the summer holidays start.A.as soon as B.since C.unless20.Tim is ______ his twin brother. They are both 180 centimeters tall.A.taller than B.shorter than C.as tall as D.not so tall as 21.Mr. Huang decided to buy that CD player ________ it was expensive.A.even though B.so that C.as soon as D.as if22.—Why do you sell old books?—I sell them________ raise some money for the poor students.A.in order that B.in order to C.so that D.because of23.________ I feel tired, ________ I don’t want to stop working.A.Though; but B.But; / C.Though; / D.Because; /24.It ________ heavily when I left the movie theater.A.rains B.was raining C.is raining D.will rain25.“A white elephant” means something that is useless, ___________ it may cost a lot of money.A.unless B.until C.since D.although【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】【分析】【详解】句意:我会完成这个任务,无论它花多久的时间。
新初中英语语法知识—状语从句的经典测试题含答案(2)
一、选择题1.--We should go to school by bus instead of by car.--Yeah, cars we use, pollution there will be.A.fewer; less B.less; fewerC.the less; the fewer D.the fewer; the less2.I ________ at the bus stop when I ________ my first teacher yesterday morning.A.was waiting; met B.waited; was meetingC.was waiting; was meeting D.waited; met3.Henry will give us a report as soon as he _______.A.arrives B.arrived C.is arriving D.will arrive 4.— Can you tell me when you are going to arrive there?—I’m not sure. But I’ll ring you up as soon as I _____there tomorrow.A.arrive B.arrived C.will arrive D.am going to arrive 5.I couldn’t avoid making _______noise, _______I tried my best.A.so much; although B.so many; althoughC.so much; so that D.so many; so that6.What does she want to do when she ________some money?A.is going to save B.saves C.will save7.It’s________a difficult question that few of us can answer it.A.quite B.so C.such D.very8.If it ________ tomorrow, we ________ to have a picnic at the lake.A.doesn’t rain; go B.won’t rain; will goC.doesn’t rain; will go D.won’t rain; go9.—I’m afraid I can’t finish the job in such a short time.—Don’t worry. Can you do it if you_______ two more hours.?A.give B.are given C.will give D.will be given 10.— Would you please ask Tom to come to my office?—Sure, I will tell you about it as soon as he _______back tomorrow.A.will come B.came C.comes D.is coming 11.Chinese market is________a big one________you should all come and see what it has to offer.A.so, that B.such, that C.enough, that D.too, to 12.The lady was _____ happy _____she couldn't say a word when she heard the good news.()A.too; to B.very; becauseC.so;that13.Now most families have only one child _____ our country’s on e-child policy.A.so B.because C.because for D.because of14.Joan was walking in the street________ she saw the accident.A.when B.while C.after D.before 15.I felt very happy, ___________ I didn't win the singing competition.A.though B.if C.so D.because 16.I’ll go to visit my aunt in England the summer holidays start.A.as soon as B.since C.unless 17.—The air pollution is terrible.—It will be worse _____ everyone plays a part in saving the environment.A.If B.unless C.until18.______________ he is very young, _________________ he can do many things. A.Although;but B.Although;/C./;although D.But;although19.—How’s the weather tomorrow?—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.A.will rain; will rain B.rains; rainsC.rains; will rain D.will rain; rains20.I didn't accept his help ________ I wanted to try it myself.A.because B.thoughC.until D.unless21.________ I feel tired, ________ I don’t want to stop working.A.Though; but B.But; / C.Though; / D.Because; / 22.Linda was just going out shopping________the telephone rang.A.while B.when C.after D.because 23.— What will you do ________it snows tomorrow?— I will go out to take photos and make a snowman.A.if B.though C.unless24.— What should I do if I ______ behind others in my study?— You are going to work really hard to catch up with them.A.fall B.will fall C.fell25.You will never gain success ______ you fully put your effort into your work. A.although B.unless C.if D.because【参考答案】***试卷处理标记,请不要删除一、选择题1.D解析:D【解析】句意:--我们应该坐公交车去上学而不要坐小汽车。
【英语】状语从句单元测试题含答案
【英语】状语从句单元测试题含答案一、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 he veryyoung.A. learned; was B. has learned; amC. has learned; was D. learned; has been【答案】 C【分析】句意:------昨晚我去听了一中公民音会。
二胡映月是这样悲,但美,在其美的下边我感到一种烈的悲和难过。
-------确实是。
昨晚演奏的音家从小就学会了演奏二胡。
Since 引的状从句,从句是一般去式,主句用在达成;故 C。
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【分析】not⋯until表示直到⋯才,与短性用,故B3.Our eyesight will become poorer and poorer we keep playing with phones.A. though B. unless C. if【答案】 C【分析】【解】句意:假如我玩手机,我的力会愈来愈差。
A. though 只管,然;B. unless 除非;C. if 假如。
里是if 引的条件状从句,按照主句用一般未来,从句用一般在,依据意,故C。
【初中英语】 状语从句单元检测(附答案)
【初中英语】状语从句单元检测(附答案)一、初中英语状语从句1.—Harry Potter is an interesting novel I want to read it again.— I agree with you.A.so; that B.too; to C.such; that D.as; as【答案】C【解析】【详解】句意:——哈利·波特是如此有趣的一部小说,我想再读一遍。
——我同意你的看法。
too+形容词或副词+to+动词原形,意思是“太……而不能”;such...that...和so...that...意思都是“如此……以至于……”,such后接名词,so后接形容词或副词,that后接从句。
as+形容词或副词原级+ as意思是“与……一样”,用于原级比较。
第二个空格后为从句,排除故B,D;novel 为名词,形容词interesting作定语修饰novel,such an interesting novel如此有趣的一部小说,故选C。
【点睛】so…that…引导结果状语从句,so后面加形容词或副词,其意为“如此……以至于……”。
如:1) This book is so interesting that everyone wants to read it. 这本书很有趣,人人都想看看。
2)He ran so fast that I couldn’t catch up with him. 他跑得那么快,我没赶上他。
so that引导目的状语从句,其从句中的谓语动词通常和can, may, should等情态动词连用,而且主句和从句之间不使用逗号,意为“以便,为了,使能够”。
如:They got up early so that they could catch the early bus. 为了能赶上早班车,他们早早就起床了。
另外such …that…也是引导的结果状语从句,such后面跟名词,如:This is such an interesting book that everyone wants to read it.2.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。
必备英语 状语从句单元检测题含答案解析
必备英语状语从句单元检测题含答案解析一、初中英语状语从句1.— 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。
C. until 在…以前;直到…时。
D. because因为。
综合分析前后句,可知此处填 though最合适,完整句意为:— What do you think of your junior middle school life?你觉得你的初中生活怎么样?—I think it is colorful, though I’m always busy.我认为它是丰富多彩的,虽然我总是很忙。
正确答案为:A2.—I’m afraid the class has begun.—Don’t worry. It ________ until the bell ________. A.doesn’t begin; rings B.won’t begin; will ringC.won’t begin; rings D.doesn’t begin; will ring【答案】C【解析】试题分析:句意:-恐怕课已经开始了。
一不要担心。
直到铃声响了才会开始。
前面是主句,会议还没开始,所以用一般将来时;后面是until引导的时间状语从句,所以要用一般现在时代替一般将来时。
所以选C。
考点:考查动词时态。
3.一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。
【初中英语】状语从句单元测试题(含答案)精品资料
【初中英语】状语从句单元测试题(含答案)精品资料一、初中英语状语从句1.If you don’t go to the meeting tomorrow, ________ ?A.he will, too B.he won’t, either C.he does, too D.he doesn’t either 【答案】B【解析】【详解】句意:如果明天你不去开会,他也不去。
考查时态。
If引导时间状语从句,遵循“主将从现”原则,从句是一般现在时,所以主句要用将来时,排除C和D,too意为“也”,用于肯定句句末,either意为“也”,用于否定句句末,排除A,故答案选B。
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.I still remember my first teacher________we haven't seen each other for many years.A.for B.because C.since D.though【答案】D【解析】试题分析:句意:尽管我们很多年没有见过面了,但是我仍然记得我的第一位老师。
此题考查连词,A因为;B因为;C自从;D尽管。
根据句意,应选D。
考点:考查连词。
4.It is necessary for children to exchange ideas with parents from time to time ________ a good parent-children relationship could be set up.A.so that B.because C.as soon as【答案】A【解析】【详解】句意“为了建立良好的亲子关系,孩子们有必要不时地与父母交流思想”。
新初中英语语法知识—状语从句的单元检测附答案(1)
一、选择题1.Sam won’t make any progress ______ he studies harder than before.A.if B.when C.because D.unless2.— Celia,join us in the Super Summer Camp if it this weekend.—.I'd love to. But nobody knows if it .A.is fine; rains B.is fine; will rain C.will be fine; will rain D.will be fine; rains 3.All of us don't like this game, ____ it's too boring.A.and B.so C.because4.We always don't realize time goes by, ________we're playing games.A.while B.although C.unless D.if5.________ Ann’s parent s are busy, they try to spend more time with her.A.Although B.As long as C.After6.— What shall we do now?—__________ it’s raining hard, let’s stay at home.A.So B.Since C.Though D.Otherwise 7.Chinese market is________a big one________you should all come and see what it has to offer.A.so, that B.such, that C.enough, that D.too, to8.—________ will the conversation begin?—________ six o’clock.A.How long; Not until B.How long; UntilC.How soon; Not until D.How soon; Until9.--______ will the discussion last?--______ we reach an agreement.A.How long; Not until B.When; Not untilC.How long, Until D.When, Until10.I don’t like science _______it’s difficult.A.but B.so C.because11.You will never gain success ______ you fully put your effort into your work. A.although B.unless C.if D.because12.The lady was _____ happy _____she couldn't say a word when she heard the good news.()A.too; to B.very; becauseC.so;that13.Mr. White tells us the calls meeting will be cancelled if no agreement _________ tomorrow. A.is reached B.will be reachedC.is going to be reached D.has been reached14.— What will you do ________it snows tomorrow?— I will go out to take photos and make a snowman.A.if B.though C.unless15.Amy was reading a novel________the teacher came in.A.while B.if C.when16.I’ll go to visit my aunt in England the summer holidays start.A.as soon as B.since C.unless17.—Are you going to Mary’s party tonight?—No, I won’t go__________ you go.A.because B.when C.unless D.though 18.The bus driver always says to us: “Don’t get off ______ the bus stops.”A.when B.whileC.until D.if19.Tim is ______ his twin brother. They are both 180 centimeters tall.A.taller than B.shorter than C.as tall as D.not so tall as 20.______________ he is very young, _________________ he can do many things. A.Although;but B.Although;/C./;although D.But;although21.—How’s the weather tomorrow?—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.A.will rain; will rain B.rains; rainsC.rains; will rain D.will rain; rains22.The policeman asks the child not to cross the street ________ the traffic light turns green. A.when B.until C.because D.after 23.—How are you going to spend this weekend?—_________ the weather is fi ne, we’ll climb Mount Tai.A.As well as B.As good as C.As soon as D.As long as 24.My father was reading ________ I was sleeping.A.while B.when C.before D.after25.--We should go to school by bus instead of by car.--Yeah, cars we use, pollution there will be.A.fewer; less B.less; fewerC.the less; the fewer D.the fewer; the less【参考答案】***试卷处理标记,请不要删除一、选择题解析:D【解析】【详解】句意:Sam不会取得任何进步,除非他比之前更努力的学习。
新初中英语语法知识—状语从句的基础测试题
一、选择题1.Now most families have only one child _____ our country’s one-child policy.A.so B.because C.because for D.because of2.________ haburgers are junk food, many children still like them.A.If B.Unless C.Because D.Although3.___________ many people may surf the Internet for the latest news, it is impossible that the newspaper will disappear.A.Beacause B.Though C.Since D.Unless4.You can stay healthy________you exercise every day.A.as long as B.so C.as soon as5.Li Lei didn’t go to bed his mother came back last night.A.after B.until C.because6.What does she want to do when she ________some money?A.is going to save B.saves C.will save7.I don’t like nuts ________ they are too hard.A.if B.after C.when D.because8.Amy is_______ careful that she made_______ mistakes in her last exam.A.so; so few B.such; so little C.so; such few D.such; such little 9.I can’t understand that the woman often complains_______she has got a well-paid job and a happy family.A.whenever B.since C.until D.though10.______ we have different opinions from time to time, we are still good friends.A.Until B.After C.Because D.Though11.--- What was the party like?--- Wonderful. It’s years ____ I enjoyed myself so much.A.since B.after C.when D.before12.All of us don't like this game, ____ it's too boring.A.and B.so C.because13.--Do you know when ____? I miss him very much.--Don't worry. I will tell you as soon as ____.A.will he come, he comes B.he will come, he comesC.he comes, he will come D.he will come, he will come14.Joan was walking in the street________ she saw the accident.A.when B.while C.after D.before15.--We should go to school by bus instead of by car.--Yeah, cars we use, pollution there will be.A.fewer; less B.less; fewerC.the less; the fewer D.the fewer; the less16.I felt very happy, ___________ I didn't win the singing competition.A.though B.if C.so D.because17._______you can sleep well, you will lose the ability to concentrate, plan and stay active after one or two nights.A.Once B.Unless C.If D.When18.—Are you going to Mary’s party tonight?—No, I won’t go__________ you go.A.because B.when C.unless D.though19.__________ what he explains to you, just don’t believe him.A.However B.Even though C.But D.No matter20.______________ he is very young, _________________ he can do many things. A.Although;but B.Although;/C./;although D.But;although21.You can’t watch TV ________ you finish your homework.A.after B.if C.when D.until22.Mr.Green doesn’t have any hobbies________ you call watching TV a hobby.A.though B.unless C.because23.—My son hardly even eats vegetables________ it’s good for his health.— Not a good habit.A.and B.but C.so D.although 24.—It’s raining heavily outside.—So stay here and don’t go out ______ it stops.A.when B.until C.if25.________ they are sisters, they don’t look the same.A.Though B.Because C.But【参考答案】***试卷处理标记,请不要删除一、选择题1.D解析:D【解析】【分析】【详解】句意:由于我们国家的独生子女政策,现在大多数家庭只有一个孩子。
初中英语语法知识—状语从句的单元汇编及答案
一、选择题1.It was ____ bad weather ____ I had to stay at home.A.too, to B.so, that C.such, that D.as, as2.______ you go to Sheshan, you’ll see a famous church and an observatory.A.Although B.What C.If D.Because3.I ________ at the bus stop when I ________ my first teacher yesterday morning.A.was waiting; met B.waited; was meetingC.was waiting; was meeting D.waited; met4.I watched the World Cup in a bar last night and I home 1:00 in the morning. A.go; until B.went; untilC.didn’t go; until D.won’t go; until5.___________ many people may surf the Internet for the latest news, it is impossible that the newspaper will disappear.A.Beacause B.Though C.Since D.Unless6.Although he _______up very early this morning, _______he was still late for school. A.get ; and B.got;/ C.gets ;so D.got ; but 7.What does she want to do when she ________some money?A.is going to save B.saves C.will save8.—Do you know________the meeting will last?—________the agreement is reached.A.how long; Not until B.when; Not until C.how long; Until D.when; Until 9.He offered________valuable suggestions ________ few people disagreed.A.such, that B.very, that C.so, that D.too, that 10.Chinese market is________a big one________you should all come and see what it has to offer.A.so, that B.such, that C.enough, that D.too, to11.I’ll finish the task, ________ how long it takes.A.even though B.so that C.no matter12.— Celia,join us in the Super Summer Camp if it this weekend.—.I'd love to. But nobody knows if it .A.is fine; rains B.is fine; will rain C.will be fine; will rain D.will be fine; rains 13.When he , I’ll tell him the news. But I don’t know when he .A.comes; will come B.will come; comesC.comes; comes D.will come; will come14.Joan was walking in the street________ she saw the accident.A.when B.while C.after D.before15.You will never gain success ______ you fully put your effort into your work.A.although B.unless C.if D.because16.I felt very happy, ___________ I didn't win the singing competition.A.though B.if C.so D.because17._______you can sleep well, you will lose the ability to concentrate, plan and stay active after one or two nights.A.Once B.Unless C.If D.When18.Amy was reading a novel________the teacher came in.A.while B.if C.when19.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.while20.The bus driver al ways says to us: “Don’t get off ______ the bus stops.”A.when B.whileC.until D.if21.Linda was just going out shopping________the telephone rang.A.while B.when C.after D.because22.— What will you do ________it snows tomorrow?— I will go out to take photos and make a snowman.A.if B.though C.unless23.— What should I do if I ______ behind others in my study?— You are going to work really hard to catch up with them.A.fall B.will fall C.fell24.___my cousin was practicing the guitar, his elder sister came into the room.A.Since B.While C.Though D.Because 25.—Has Jim known the good news?—Not yet. I will tell him about it ________ he comes back.A.while B.until C.as soon as D.since【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】【分析】【详解】句意:天气如此糟糕以至于我不得不待在家里。
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一、选择题1.________ you've tasted them, you can't imagine how delicious the dishes are. A.Because B.Although C.Unless D.So2.— Celia,join us in the Super Summer Camp if it this weekend.—.I'd love to. But nobody knows if it .A.is fine; rains B.is fine; will rain C.will be fine; will rain D.will be fine; rains 3.—the water was cold , Wei Qinggang jumped into it to save others.A.Although B.When C.If D.Because4.We always don't realize time goes by, ________we're playing games.A.while B.although C.unless D.if5.___________ many people may surf the Internet for the latest news, it is impossible that the newspaper will disappear.A.Beacause B.Though C.Since D.Unless6.It’s________a difficult question that few of us can answer it.A.quite B.so C.such D.very7.—I’m afraid I can’t finish the job in such a short time.—Don’t worry. Can you do it if you_______ two more hours.?A.give B.are given C.will give D.will be given 8.— What shall we do now?—__________ it’s raining hard, let’s stay at home.A.So B.Since C.Though D.Otherwise9.________ they are sisters, they don’t look the same.A.Though B.Because C.But10.It was ____ bad weather ____ I had to stay at home.A.too, to B.so, that C.such, that D.as, as11.If you _______ someone, you invite them to flight or compete with you in some way. A.encourage B.challenge C.introduce12.—You look so sleepy. What’s the matter with you , Carmen?—I’ve been working for ten hours. I am__________tired ___________ I want to sleep.A.so ; that B.such; thatC.between; and D.neither; nor13.I felt very happy, ___________ I didn't win the singing competition.A.though B.if C.so D.because 14.—My son hardly even eats vegetables________ it’s good for his health.— Not a good habit.A.and B.but C.so D.although15.I’ll go to visit my aunt in England the summer holidays start.A.as soon as B.since C.unless16.—Are you going to Mary’s party tonight?—No, I won’t go__________ you go.A.because B.when C.unless D.though 17.__________ what he explains to you, just don’t believe him.A.However B.Even though C.But D.No matter 18.— When shall we start?—Let’s wait ________ the rain stops.A.if B.as C.until D.since19.You can’t watch TV ________ you finish your homework.A.after B.if C.when D.until 20.Mr. Huang decided to buy that CD player ________ it was expensive.A.even though B.so that C.as soon as D.as if 21.—How’s the weather tomorrow?—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.A.will rain; will rain B.rains; rainsC.rains; will rain D.will rain; rains22.I didn't accept his help ________ I wanted to try it myself.A.because B.thoughC.until D.unless23.________ I feel tired, ________ I don’t want to stop working.A.Though; but B.But; / C.Though; / D.Because; / 24.My father was reading ________ I was sleeping.A.while B.when C.before D.after 25.Sam won’t make any progress ______ he studies harder than before.A.if B.when C.because D.unless【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】【分析】【详解】句意:除非你尝过这些菜,否则你很难想象出它们有多么美味。
考查从属连词辨析。
Because因为;Although尽管;Unless除非;So因此。
结合句意可知,此句是unless引导的条件状语从句,表示“除非”。
故选C。
2.B解析:B【解析】试题分析:句意:——西莉亚,如果这个周末不下雨的话,就来加入我们的超级夏令营吧。
——我非常乐意。
但是没有人知道周末是否会下雨。
第一句中的连词if意为“如果”,用来引导条件状语从句,从句用一般现在时表示将来,故用is fine;第二句中的if意为“是否”,引导宾语从句,根据句意从句用一般将来时will rain。
故选B。
考点:考查条件状语从句的用法和宾语从句的用法。
3.A解析:A【解析】【详解】本题主要考查连词辨析,句意:尽管水很冷,但是魏青刚跳进去救别人。
因此用although 引导让步状语从句;When当……时候;If如果;Because因为,故选A。
4.A解析:A【解析】【详解】句意:当我们打游戏的时候,我们总是无法意识到时间的流逝。
考查从属连词以及状语从句。
while当……时,时间状语从句;although尽管,让步状语从句;unless除非,如果不,条件状语从句;if如果,条件状语从句。
当我们玩游戏时候,我们意识不到时间过得很快。
时间状语从句,故选A。
5.B解析:B【解析】句意:尽管许多人通过网络获取最新消息,但是很可能报纸不会消失。
Because 因为,引导原因状语从句;Though尽管,引导让步状语从句;Since自从,引导时间状语从句;Unless除非,引导条件状语从句。
根据两句话之间的逻辑关系可知应选B。
6.C解析:C【解析】【详解】句意:这个问题是如此的难以至于我们很少有人能回答。
考查such……that句型。
quite相当,后面接形容词原形;so如此,后面接形容词或副词,与that构成so……that句型“如此……以至于”;such如此,后面接名词或名词短语;very非常,后面接形容词或副词,根据所给空后面的a difficult question是名词短语,所以用such,故选C。
7.B解析:B【解析】【分析】【详解】句意:——我担心我不能在这么短的时间里完成工作。
——不要担心,如果再多两个小时,你做得到吗?考查if引导的条件状语从句。
give给,原形;are given被给,被动语态;will give将会给,将来时;will be given将会被给。
在if引导的状语从句中,用一般现在时代替一般将来时;主语you是动作的承受者,所以用被动语态。
故选B。
8.B解析:B【解析】【分析】【详解】句意:——我们现在该做什么?——既然雨下得这么大,就让我们呆在家里吧。
考查原因状语从句。
A. so 因此,所以,表示结果;B. since 既然,由于,自……以来,表示原因或时间;C. though虽然,尽管,引导让步状语从句;D. otherwise 否则。
根据句意可知这里应该是表示原因的,故选B。
9.A解析:A【解析】【分析】【详解】句意:虽然她们是姐妹,但她们看起来不一样。
考查连词,A. Though尽管,虽然,引导让步状语从句;B. Because因为,引导原因状语从句;C. But但是,表转折。
观察句子逻辑结构,应该是though引导的让步状语从句,故选A。
【点睛】though、although均引导让步状语从句,意为“虽然……”,although较正式,though最常用。