Unit 6 Enjoying Cycling 单元语法（动词不定式+时间状语从句+条件状语从句）精讲精练

Unit6 Enjoying Cycling 单元语法 （动词不定式+时间状语从句+条件状语从句）精讲精练 语法一：动词不定式 1.动词不定式的构成与特征 动词不定式不能在句中单独作谓语，其基本形式为“to＋动词原形”，否定形式为“not to＋动词原形”，在句中使用时具有名词、形容词或副词的特征。 2.动词不定式的基本用法 用法 说明 例句 作主语 ①当单个不定式作主语时，谓语动词用单数。 ②为了保持句子的平衡，通常用it作形式主语，而把真正的主语——不定式（短语）放在后面。 ①To admit his mistake is not easy for him. 要他承认错误对他来说是不容易的。 ②It’s very nice of you to help me with my English. 你帮助我学英语，你真是太好了。 作表语 不定式可以用在系动词后作表语，通常表示愿望、责任、义务等。 His wish is to become a musician. 他的愿望是当一名音乐家。 续表 用法 说明 例句 作宾语 ①一些表示命令、打算、希望、决心等的动词后常接不定式作宾语。此类动词巧记如下： 想要干：want， wish， hope， expect， would like/love， like 早打算：plan， prepare， mean 同意否：agree， offer， refuse 问问看：ask， afford 决定了：decide， make up one’s mind， promise 开始学：begin/start， learn 尽力干：manage（反义词fail）， try 努力做：make an effort 莫等待：wait 别忘记：forget（反义词remember） ②在find， think等词后跟不定式作宾语时，常用it作形式宾语，而将真正的宾语后置。 ①He agreed to meet me at the station. 他同意在车站接我。 ②I think it difficult to finish the program in two weeks. 我觉得要在两周内完成这个项目很难。 作宾语 补足语 ①常在“动词＋宾语＋不定式”结构中使用。常见此类动词有advise， allow， ask， encourage， force， help， invite， order， teach， tell， warn， wish， want/would like， expect， get等。 ②在表示感官及使役等意义的动词后，要用不带to的不定式作补语。常见的此类动词有：一感（feel）、二听（hear，listen）、三让（let，make，have）、四看（look，see，notice， watch）。help后用带to或不带to的不定式均可。 ①His mother warns him not to play computer games anymore. 他的妈妈警告他不要再玩电脑游戏了。 ②They heard him sing a song in the meeting room. 他们听见他在会议室唱了一首歌。 作定语 不定式（短语）作定语时，应放在被修饰的名词或代词之后。 He was the first to come to the classroom. 他是第一个来到教室的人。 作状语 不定式可作目的状语、结果状语和原因状语。 ①He returned home to see what happened. 他返回家去看发生了什么。（目的状语） ②She opened the box to find it empty. 她打开盒子，结果却发现它是空的。（结果状语） ③I’m glad to see you. 见到你很高兴。（原因状语） 【拓展】 1.当有两个并列不定式作宾补时，后一个不定式往往省略to。如： The boss asked Tim to go and find out if there was anyone else absent. （2016河南29题） 2.省略to的常见句型： ①Why not do sth.？ ＝ Why don’t you do sth.？ 为什么不……呢？ ②Could/Would/Will you please （not） do sth.？ 你可以（不）做……吗？ ③had better （not） do sth. 最好（不要）做某事 ④would rather do A than do B 宁愿做A也不愿做B ⑤let’s do sth. 让我们做某事吧。 ⑥prefer to do...rather than do... 宁愿做……而不愿做…… 3.含动词不定式的特殊句型（2022.68考查）： ①It takes/took sb. some time to do sth. 做某事花费某人多长时间。（2022.68） ②It’s one’s turn to do sth. 轮到某人做某事。 ③It’s time to do sth. 到做某事的时间了。 ④adj.＋enough to do sth. 足够……做某事 ⑤too...to... 太……而不能…… 一、单项选择 1．—The teacher always tells us________too much in class. —Of course, we should listen to the teacher carefully in class. A．don’t talk B．not to talk C．doesn’t talk D．not talk 2．However, few people think about what they can do ________ others. There are many people who are less lucky than us. A．help B．helps C．helping D．to help 3．— I have a couple of things to do, so I can’t stop ________you cook in the kitchen. A．helping B．help C．helps D．to help 4．It’s impossible ________ how large the Galaxy is. A．imagine B．to imagine C．imagining D．imagined 5．Now a large number of people start __________ the importance of a healthy lifestyle. A．understand B．understood C．understanding D．to understand 6．—It’s interesting for us ________ games in the Central Park. —Yes, I feel the same way. A．to play B．playing C．play D．plays 7．They contacted all the teachers they can turn to ________ their son ________ games in the dorm. A．to prevent ; playing B．to prevent ; to play C．preventing ; to play D．preventing ; playing 8．Students should learn how ________ problems. A．to solve B．solve C．solving D．solved 9．—This afternoon we are going to have an English class. Remember _________ your book. —OK, we will. A．bring B．to bring C．bringing 10．________ energy, the city will spend more money developing its recycling industry. A．Save B．To save C．Saving D．Saved 11．________ down air pollution, we should drive less and use the green transportation more. A．Cut B．To cut C．Cutting D．Cuts 12．To keep safe, everyone is supposed ________ a seat belt in the car. A．wear B．to wear C．wearing D．wore 13．I don’t want ________ some shopping this afternoon. A．to do B．doing C．did D．do 14．Sherlock Holmes is a careful detective. No detail is ________ escape (逃脱) his attention. A．too small to B．so small that C．not small enough D．as small as 15．Amy has no pens ________. She needs to buy some. A．to write B．writing C．to write with D．writing with 16．They’ll do what they can ______ the Earth. A．help B．to help C．helping D．helped 17．Nowadays, many tourist attractions allow visitors ________ free tickets by reciting poems. A．getting B．get C．to get 18．I don’t know what ________ for my little sister. A．reading B．buying C．to read D．to buy 19．—It’s dangerous to swim in this river. —Yes, you are right. The government has warned people _______ in it. A．don’t swim B．not to swim C．not swimming D．not swim 20．— We are leaving for Beijing, but we haven’t decided ________. — You’d better take the high-speed railway. A．when to leave B．how to get there C．which hotel to choose 21．Some people think there is life on other planets. The possibility has always encouraged scientists ________ the outer space. A．explore B．exploring C．to explore 22．The STEM course in our school requires students _______ some projects in groups. A．do B．to do C．doing D．to doing 23．Although her schedule is busy, Lucy manages ________ her homework on time. A．to finish B．finishing C．finish D．to finishing 24．They happened ________ the famous Chinese tennis player at the airport yesterday. A．saw B．seeing C．see D．to see 25．Mr. Jones expected the insurance company ________ him 300,000 dollars for the vase. A．pay B．pays C．to pay D．not to pay 语法二：时间状语从句 1、 【定义】 在主从复合句中充当宾语，位于及物动词、介词或复合谓语等词之后的从句称为宾语从句（即从句在句子中起宾语作用的从句叫做宾语从句.）。宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句。 2、 【重要性】：中高考必考、写作中可用的高级句型。 3、 【连接词】 when（当……时），while（在……期间），as（当……，一边……一边……），before（在……之前），after（在……之后），since（从……以来），till/until（直到），whenever（无论何时），as soon as（一……就）等。 4、 【用法】 1. when, while和as的区别 （1） when引导的从句的谓语动词可以是延续性的动词，可以是瞬间动词。 例如：When she came in, I was cooking. 当她进来时，我在做饭。 （2） while引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还可以表示对比。 例如：While my wife was reading the newspaper, I was watching TV. I like playing football while you like playing basketball. 我喜欢踢足球，而你喜欢打篮球。 注：在表示“当...时”，when和while的区别可以简单概括为以下结构： When+句子，+句子（be doing）. = 句子（be doing）+when+句子. When he came in, I was singing.=I was singing when he came in. While+句子（be doing）, 句子. = 句子+while+句子（be doing）. While I was singing, he came in.=He came in while I was singing. （3） as表示“一边……一边”，as引导的动作是延续性的动作，一般用于主句和从句动作同时发生；as也可以强调“一先一后。 例如：We always sing as we walk. 我们总是边走边唱。 As we were going out, it began to snow. 当我们出门时，开始下雪了。 2. 由till或until引导的时间状语从句 till和until一般情况下两者可以互换。till不可以用在句首，而until可以放在句首。not ... until...“直到...才...” 例如：I didn't go to bed until（till）my father came back. 直到我父亲回来我才上床睡觉。 3. 由since引导的时间状语从句 一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时。 例如：I have been in Beijing since you left. 自从你离开以来，我一直在北京了。 4. 由as soon as引导的时间状语从句 例如：I will call you as soon as I get to the station. 我一到车站就给你打电话。 5、 【时态和位置】 1. 时态：一般来讲，复合句都要遵循主、从句时态呼应规律，状语从句也不例外。即主句用现在时，从句也用现在时；主句用过去时，从句也用过去的某种时态。 例如：You must see the doctor if you are ill. 如果你生病了，你必须去看医生。 When he was seven years old, he could swim.当他七岁时就会游泳。 时态用法可概括为：主将从现：主句用了将来时，从句就要用现在时。 主过从过：主句用了过去时，从句也要用过去时。 2. 位置：大多数情况下，从句可以位于主句之前，也可以位于主句之后。不过从句在前时，主从句之间必须用逗号隔开。 例如：Please tell me when he comes back. = When he comes back, please tell me. 一、单项选择 1．We don’t know the love of our parents ________ we become parents ourselves one day. A．until B．since C．when D．after 2．—Time to go home now, Lucy. —Wait a moment. I can’t go home ________ I finish cleaning the classroom. A．until B．since C．when D．after 3．Don’t wait ________ it’s too late to tell someone how much you love him or her, because when he or she has gone, he or she won’t hear you any more. A．if B．since C．until 4．To make paper cutting, we need to fold the paper ________ it is cut with scissors. A．before B．so C．although 5．We have seen much convenience ________ AI came into use. A．since B．until C．if 6．Mum has been working in this school since she ________ from university in 2000. A．graduates B．has graduated C．had graduated D．graduated 7．We are going to take a trip to Kunming ________ we save enough money. A．so that B．as soon as C．ever since D．even if 8．In China, people usually won’t start eating ________ the elders take their seats. A．when B．until C．after 9．I was sleeping soundly that night ________ a terrible shaking woke me up. A．that B．where C．while D．when 10．Elon Musk spoke highly of China Space ________ he arrived in China last week. A．as soon as B．unless C．because D．if 11．The little girl got excited ______ she saw her father in the crowd. A．as soon as B．so that C．even if 12．We _______ by the river side when a sudden storm hit, so we made our way back. A．walked B．were walking C．have walked 13．—Excuse me, is it my turn? —Not yet. Please wait outside ________ your name is called. A．since B．after C．until 14．The ChatGPT has influenced us a lot since its data model ________ the year before. A．makes B．made C．is made D．was made 15．Amy didn’t go to bed ________ she finished her homework. A．if B．until C．since 16．—I don’t think I can finish the task. —Don’t say so like that. You will never know your strong ability _______ you try. A．after B．until C．if D．since 17．I was so excited ________ I succeeded in passing the senior high school entrance examination. A．that B．when C．unless 18．—Shall we go now? —No. The lights are red. Please wait ______ they turn green. A．because B．until C．if D．though 19．China’s AI cartoon Qianqiu shisong (千秋诗颂) will catch people’s attention _______ it appears. A．in order that B．as long as C．as soon as D．so that 20．—Mary, when did you go to bed last night? —I didn’t go to bed ________ I finished reading the novel The Three Body Problem. A．until B．although C．if D．after 21．—Hurry up! We’re going to be late! —Wait a minute. Don’t cross the street ______ the traffic lights turn green. A．while B．until C．after 22．Life is like a mirror. _________ you smile at it, it will smile back. A．Though B．Unless C．Until D．When 23．We didn’t leave school yesterday ________ we cleaned the classroom carefully. A．when B．since C．until D．if 24．She became famous in town ________ she won first prize in the singing competition. A．unless B．if C．after D．although 25．—Look, Here comes our school bus. —No hurry. Don’t get on it ________ it has stopped. A．after B．until C．since D．when 语法三：条件状语从句 【语法讲解】 一、条件状语从句的引导词 1. if，如果 e.g.: If you ask him for help, he will give you a hand. 如果你向他求助，他会给你提供帮助。 2. unless 除非（= if ... not） e.g.: Unless you tell him the truth, he won’t trust you any more. = If you don’t tell him the truth, he won’t trust you any more. 除非你告诉他真相，否则他不会再相信你。 3. as long as 只要 e.g.: As long as you keep trying, you will solve this problem. 只要你继续尝试，你最终会解决这个问题的。 二、条件状语从句的时态 主句表示将来概念，从句需要使用一般现在时表示将来，即“主将从现”原则。 1. 主句为一般将来时，从句用一般现在时，如： e.g.: We will go climbing tomorrow if it doesn’t rain. 如果明天不下雨，我们就去爬山。 2. 主句谓语动词为can, may, must等情态动词时，从句用一般现在时，如： e.g.: You can make your dream come true as long as you don’t give up. 只要你不放弃，你就能实现梦想。 We must leave right now if we want to get to the airport on time. 如果我们想要准时达到机场，我们现在就必须动身。 3. 主句为祈使句，从句用一般现在时，如： e.g.: Don’t break your promises if you need others’ trust. 如果你想要别人的信任，就不要违背诺言。 三、区分条件状语从句连词if（如果）和宾语从句连词if（是否） if表示“如果”时，引导条件状语从句，从句需要遵循“主将从现”原则； if表示“是否”时，引导宾语从句，从句时态可使用将来时。 e.g.: I will call you if I have free time. 如果我有空余时间，我会给你打电话。 She is wondering if Mike will come to the party. 她在想，迈克能否来参加派对。 四、时间状语从句、原因状语从句、让步状语从句 1. 时间状语从句引导词：when (当……时), as (随着), until (直到)，as soon as (一……就……)，not ... until ... (直到……才……) 【注意】时间状语从句的时态也需要遵循“主将从现”原则。 e.g.: Mom was cooking dinner when I got back home. 我回家时，妈妈正在做晚饭。 As time went by, he gradually realized his mistake. 随着时间推移，他渐渐意识到了自己的错误。 I kept waiting until 10:00 p.m. yesterday. 我昨天晚上一直等到十点。 Please call me as soon as you arrive. 请你达到后，就给我打电话。 He didn’t go to bed until his parents came back last night. 昨晚，他父母回家后，他才睡觉。 2. 原因状语从句引导词：because (因为), as (由于) e.g.: I didn’t go to the party because I needed to study for my exam. 我没有去派对，是因为我要准备考试。 She may need some help as she is new here. 她是新来的，可能需要一些帮助。 3. 让步状语从句引导词：although/though (虽然，即使), even though/if (即使) e.g.: Although I failed many times, I will still keep trying. 虽然我失败了很多次，我还是会继续尝试。 1．I will try my best to prepare for the competition ________ I get the chance to enter it. A．unless B．if C．although D．but 2．We can help protect the environment ________ we change our bad habits. A．if B．since C．though D．unless 3．______ you don’t give it up, you may succeed in getting a scholarship. A．Until B．Unless C．If D．Whenever 4．—You look so worried, Cathy. What’s the matter? —I will have to close my café _________ my business improves. A．if B．since C．until D．unless 5．—Mike, how about going to visit Mi Fu Calligraphy Park this weekend? —OK, ________ it rains heavily. A．if B．when C．until D．unless 6．—There are fewer and fewer tigers in the world. —I agree. The situation will continue ________ humans stop hunting them for their fur and bones. A．if B．unless C．because 7．________ you keep English diaries as a habit, your writing skill will be developed. A．As long as B．Even though C．In order that 8．________ you get the news of the girl, please tell her parents as soon as possible. A．Once B．Until C．Although 9．We may face serious problems _______ we take better care of the Earth. A．if B．unless C．though D．as 10．You won’t be allowed into the concert ________ you show your ticket at the entrance. A．if B．unless C．though D．since 11．I’ll be able to finish the project on time ________ there are unexpected delays. A．when B．because C．unless D．though 12．It will be difficult for Gary to complete all the tasks ________ he can manage the time well. A．if B．although C．because D．unless 13．You’ll miss the interesting details in the story ________ you pay special attention. A．unless B．as long as C．if D．because 14．________ the rain stops, the organizers are very likely to cancel the fireworks display. A．Unless B．Until C．Because D．If 15．You won’t have a chance to win the contest ________ you don’t prepare enough. A．unless B．though C．if D．after 16．_________ you go around China, you will know more about its culture. A．If B．Unless C．Until D．Although 17．Amy goes jogging in Century Park every morning ______ it rains. A．unless B．till C．since D．as 18．Dreams don’t work ________ you must work hard for them. A．if B．though C．unless 19．—How is Mary getting on with her lessons? —She will fail the exam ________ she studies harder. A．if B．unless C．as long as D．after 20．—Is your QQ account safe? —Yes, nobody can use it ________ they have the password. A．unless B．when C．since D．if 21．—Learning a new language is like learning to swim. —Yes. ________ we are trying our best, we’ll find it easy. A．Although B．Unless C．If D．Before 22．You will not take the lead ________ you put your whole heart into the final exam. A．unless B．whenever C．though D．since 23．I’m afraid that we can’t _________ the math problem _________ the teacher helps us. A．work out; if B．work on; if C．work out; unless D．work on; unless 24．—What are you going to do tomorrow? —I will play soccer ________ my mother lets me go out. A．if B．before C．until 25．—It is said that President Xi came to our school yesterday. —I won’t believe it ________ I see him with my own eyes. A．unless B．because C．after D．though 1 / 14 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$ Unit6 Enjoying Cycling 单元语法 （动词不定式+时间状语从句+条件状语从句）精讲精练 语法一：动词不定式 1.动词不定式的构成与特征 动词不定式不能在句中单独作谓语，其基本形式为“to＋动词原形”，否定形式为“not to＋动词原形”，在句中使用时具有名词、形容词或副词的特征。 2.动词不定式的基本用法 用法 说明 例句 作主语 ①当单个不定式作主语时，谓语动词用单数。 ②为了保持句子的平衡，通常用it作形式主语，而把真正的主语——不定式（短语）放在后面。 ①To admit his mistake is not easy for him. 要他承认错误对他来说是不容易的。 ②It’s very nice of you to help me with my English. 你帮助我学英语，你真是太好了。 作表语 不定式可以用在系动词后作表语，通常表示愿望、责任、义务等。 His wish is to become a musician. 他的愿望是当一名音乐家。 续表 用法 说明 例句 作宾语 ①一些表示命令、打算、希望、决心等的动词后常接不定式作宾语。此类动词巧记如下： 想要干：want， wish， hope， expect， would like/love， like 早打算：plan， prepare， mean 同意否：agree， offer， refuse 问问看：ask， afford 决定了：decide， make up one’s mind， promise 开始学：begin/start， learn 尽力干：manage（反义词fail）， try 努力做：make an effort 莫等待：wait 别忘记：forget（反义词remember） ②在find， think等词后跟不定式作宾语时，常用it作形式宾语，而将真正的宾语后置。 ①He agreed to meet me at the station. 他同意在车站接我。 ②I think it difficult to finish the program in two weeks. 我觉得要在两周内完成这个项目很难。 作宾语 补足语 ①常在“动词＋宾语＋不定式”结构中使用。常见此类动词有advise， allow， ask， encourage， force， help， invite， order， teach， tell， warn， wish， want/would like， expect， get等。 ②在表示感官及使役等意义的动词后，要用不带to的不定式作补语。常见的此类动词有：一感（feel）、二听（hear，listen）、三让（let，make，have）、四看（look，see，notice， watch）。help后用带to或不带to的不定式均可。 ①His mother warns him not to play computer games anymore. 他的妈妈警告他不要再玩电脑游戏了。 ②They heard him sing a song in the meeting room. 他们听见他在会议室唱了一首歌。 作定语 不定式（短语）作定语时，应放在被修饰的名词或代词之后。 He was the first to come to the classroom. 他是第一个来到教室的人。 作状语 不定式可作目的状语、结果状语和原因状语。 ①He returned home to see what happened. 他返回家去看发生了什么。（目的状语） ②She opened the box to find it empty. 她打开盒子，结果却发现它是空的。（结果状语） ③I’m glad to see you. 见到你很高兴。（原因状语） 【拓展】 1.当有两个并列不定式作宾补时，后一个不定式往往省略to。如： The boss asked Tim to go and find out if there was anyone else absent. （2016河南29题） 2.省略to的常见句型： ①Why not do sth.？ ＝ Why don’t you do sth.？ 为什么不……呢？ ②Could/Would/Will you please （not） do sth.？ 你可以（不）做……吗？ ③had better （not） do sth. 最好（不要）做某事 ④would rather do A than do B 宁愿做A也不愿做B ⑤let’s do sth. 让我们做某事吧。 ⑥prefer to do...rather than do... 宁愿做……而不愿做…… 3.含动词不定式的特殊句型（2022.68考查）： ①It takes/took sb. some time to do sth. 做某事花费某人多长时间。（2022.68） ②It’s one’s turn to do sth. 轮到某人做某事。 ③It’s time to do sth. 到做某事的时间了。 ④adj.＋enough to do sth. 足够……做某事 ⑤too...to... 太……而不能…… 一、单项选择 1．—The teacher always tells us________too much in class. —Of course, we should listen to the teacher carefully in class. A．don’t talk B．not to talk C．doesn’t talk D．not talk 【答案】B 【详解】句意：——老师总是告诉我们上课时不要讲很多话。——当然，上课时我们应该仔细听老师讲课。考查动词不定式。表示“告诉某人做某事”用tell sb. to do,表示否定时，否定词放在动词不定式的前面，此处用not to walk。故选B。 2．However, few people think about what they can do ________ others. There are many people who are less lucky than us. A．help B．helps C．helping D．to help 【答案】D 【详解】句意：然而，很少有人考虑他们能做些什么来帮助别人。有很多人没有我们幸运。 考查非谓语动词。分析句子结构可知，what they can do作宾语，此处指的是“为了帮助别人而做些什么”，空格处表目的，应该用动词不定式，故选D。 3．— I have a couple of things to do, so I can’t stop ________you cook in the kitchen. A．helping B．help C．helps D．to help 【答案】D 【详解】句意：我有几件事情要做，所以我不能停下来在厨房帮你做饭。 考查非谓语动词。stop doing sth.停止做某事，stop to do sth.停下来去做某事；上句 “I have a couple of things to do”可知，有事情要做，所以不能停下来去帮你；故选D。 4．It’s impossible ________ how large the Galaxy is. A．imagine B．to imagine C．imagining D．imagined 【答案】B 【详解】句意：去想象银河系有多大是不可能的。考查句型的固定搭配。根据It is/was + adj. + to do sth. “做某事是怎么样的”可知，形容词后面需加不定式，故选B。 5．Now a large number of people start __________ the importance of a healthy lifestyle. A．understand B．understood C．understanding D．to understand 【答案】D 【详解】句意：现在很多人开始认识到健康生活方式的重要性。考查非谓语动词。start to do和start doing都表示“开始做某事”，当start后接的动词为表示心理活动的动词如understand、realize等时，后接to do sth。故选D。 6．—It’s interesting for us ________ games in the Central Park. —Yes, I feel the same way. A．to play B．playing C．play D．plays 【答案】A 【详解】句意：——在中央公园玩游戏对我们来说很有趣。——是的，我也有同感。考查非谓语动词。It is+形容词+for sb to do sth“对于某人来说做某事是……的”，空处应填动词play的不定式to play。故选A。 7．They contacted all the teachers they can turn to ________ their son ________ games in the dorm. A．to prevent ; playing B．to prevent ; to play C．preventing ; to play D．preventing ; playing 【答案】A 【详解】句意：他们联系了所有他们能求助的老师，以防止他们的儿子在宿舍里玩游戏。 考查非谓语动词。由“They contacted all the teachers they can turn to...their son...games”可知，此句指联系老师的目的是为了阻止儿子玩游戏，第一空需用不定式表目的；由“prevent”可知，prevent sb. doing“阻止某人做某事”，第二空用动名词。故选A。 8．Students should learn how ________ problems. A．to solve B．solve C．solving D．solved 【答案】A 【详解】句意：学生应该学会如何解决问题。考查动词不定式。特殊疑问词+动词不定式，具有名词的性质，在句子中做主语或宾语。how to solve problems“如何解决问题”，在句中作动词learn的宾语。故选A。 9．—This afternoon we are going to have an English class. Remember _________ your book. —OK, we will. A．bring B．to bring C．bringing 【答案】B 【详解】句意：——今天下午我们将有一节英语课。记得带上你的书。——好的，我们会的。考查非谓语动词。根据“This afternoon we are going to have an English class. Remember...your book.”可知，此处表示“记得带上你的书”，remember to do sth.意为“记得做某事”。故选B。 10．________ energy, the city will spend more money developing its recycling industry. A．Save B．To save C．Saving D．Saved 【答案】B 【详解】句意：为了节约能源，该市将要花费更多钱发展回收工业。 考查动词不定式。根据“...energy, the city will spend more money developing its recycling industry.”可知，本句表达了“该市发展回收工业的目的是节约能源”；save意为“节约”，to save energy表示“为了节约能源”，不定式在句中作目的状语。故选B。 11．________ down air pollution, we should drive less and use the green transportation more. A．Cut B．To cut C．Cutting D．Cuts 【答案】B 【详解】句意：为了减少空气污染，我们应该少开车，多使用绿色交通工具。考查非谓语动词。根据“we should drive less and use the green transportation more.”可知，此处需要使用动词不定式表目的，故选B。 12．To keep safe, everyone is supposed ________ a seat belt in the car. A．wear B．to wear C．wearing D．wore 【答案】B 【详解】句意：为了安全起见，每个人在车里都应该系上安全带。考查动词不定式。根据“everyone is supposed”可知，be supposed to do sth.“应该做某事”，动词不定式作宾语。故选B。 13．I don’t want ________ some shopping this afternoon. A．to do B．doing C．did D．do 【答案】A 【详解】句意：我今天下午不想去购物。 考查固定搭配。“want to do sth.”是一个固定搭配，表示“想要做某事”。故选A。 14．Sherlock Holmes is a careful detective. No detail is ________ escape (逃脱) his attention. A．too small to B．so small that C．not small enough D．as small as 【答案】A 【详解】句意：夏洛克·福尔摩斯是个细心的侦探。任何细节都不能逃过他的注意。考查too...to的用法。too small to do太小而不能；so small that如此小以至于，其后接从句；not small enough不够小，enough之后跟动词不定式；as small as和……一样小。根据“escape(逃脱) his attention.”可知任何小的细节都逃脱不了他的注意，用结构too adj. to do sth.。故选A。 15．Amy has no pens ________. She needs to buy some. A．to write B．writing C．to write with D．writing with 【答案】C 【详解】句意：艾米没有写字的笔。她需要买一些。考查动词短语和非谓语动词。write写；write with用某物书写。题中write和pens之间存在动宾关系，write是不及物动词，所以要加介词with，又分析句子可知，此处应用不定式作定语修饰pens，故选C。 16．They’ll do what they can ______ the Earth. A．help B．to help C．helping D．helped 【答案】B 【详解】句意： 他们会尽其所能帮助地球。 考查动词不定式。根据“do what they can”可知，尽其所能帮助地球，动词不定式做目的状语，故选B。 17．Nowadays, many tourist attractions allow visitors ________ free tickets by reciting poems. A．getting B．get C．to get 【答案】C 【详解】句意：如今，许多旅游景点允许游客通过朗诵诗歌获得免费门票。考查非谓语动词。allow sb. to do sth.“允许某人做某事”，动词不定式作宾语补足语。故选C。 18．I don’t know what ________ for my little sister. A．reading B．buying C．to read D．to buy 【答案】D 【详解】句意：我不知道给我的妹妹买什么。考查非谓语动词及动词辨析。reading阅读，现在分词或动名词形式；buying买，现在分词或动名词形式；to read阅读，动词不定式；to buy买，动词不定式。根据“I don’t know what … for my little sister.”可知，此处为“我不知道给妹妹买什么”，应用动词buy；在句中，“疑问词what + to do”作know的宾语，即what to buy。故选D。 19．—It’s dangerous to swim in this river. —Yes, you are right. The government has warned people _______ in it. A．don’t swim B．not to swim C．not swimming D．not swim 【答案】B 【详解】句意：——在这条河里游泳很危险。——是的，你说得对。政府已经警告人们不要在里面游泳。考查动词不定式的否定形式。根据“The government has warned people…in it”可知，政府已经警告人们不要在里面游泳，warn sb. not to do sth.，即“警告某人不要做某事”。故选B。 20．— We are leaving for Beijing, but we haven’t decided ________. — You’d better take the high-speed railway. A．when to leave B．how to get there C．which hotel to choose 【答案】B 【详解】句意：——我们要去北京，但是我们还没有决定如何到达那里。——你们最好坐高铁。考查疑问词+动词不定式。when to leave什么时候离开；how to get there如何到达那里；which hotel to choose选择哪一个酒店。根据“You’d better take the high-speed railway.”可知，空格处表达如何到达那里，故选B。 21．Some people think there is life on other planets. The possibility has always encouraged scientists ________ the outer space. A．explore B．exploring C．to explore 【答案】C 【详解】句意：有些人认为其他星球上有生命。这种可能性一直鼓励着科学家探索外层空间。 考查非谓语动词。根据“The possibility has always encouraged scientists ... the outer space.”可知，此处表示鼓励科学家们去探索外太空，使用句型encourage sb to do sth“鼓励某人做某事”。故选C。 22．The STEM course in our school requires students _______ some projects in groups. A．do B．to do C．doing D．to doing 【答案】B 【详解】句意：我们学校的STEM课程要求学生分组做一些项目。考查动词非谓语形式。do做，动词原形；to do做，动词不定式；doing做，现在分词或动名词形式；to doing介词+动名词。根据“The STEM course in our school requires students … some projects in groups.”可知，此处考查固定短语require sb. to do sth.“要求某人做某事”。故选B。 23．Although her schedule is busy, Lucy manages ________ her homework on time. A．to finish B．finishing C．finish D．to finishing 【答案】A 【详解】句意：虽然露西的日程排得很满，但她还是设法按时完成了作业。考查非谓语动词。manage to do sth.“设法做某事”。故选A。 24．They happened ________ the famous Chinese tennis player at the airport yesterday. A．saw B．seeing C．see D．to see 【答案】D 【详解】句意：昨天他们在机场碰巧遇到了那位著名的中国网球运动员。考查动词不定式。saw看见，过去式；seeing看见，现在分词或动名词；see看见，动词原形；to see看见，动词不定式。happen to do sth.表示 “碰巧做某事”，happen to see 表示“碰巧看见”，符合题意，故选D。 25．Mr. Jones expected the insurance company ________ him 300,000 dollars for the vase. A．pay B．pays C．to pay D．not to pay 【答案】C 【详解】句意：琼斯先生期望保险公司为这个花瓶赔付他30万美元。考查非谓语动词。expect to do sth.意为“期望做某事”，固定词组。故选C。 语法二：时间状语从句 1、 【定义】 在主从复合句中充当宾语，位于及物动词、介词或复合谓语等词之后的从句称为宾语从句（即从句在句子中起宾语作用的从句叫做宾语从句.）。宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句。 2、 【重要性】：中高考必考、写作中可用的高级句型。 3、 【连接词】 when（当……时），while（在……期间），as（当……，一边……一边……），before（在……之前），after（在……之后），since（从……以来），till/until（直到），whenever（无论何时），as soon as（一……就）等。 4、 【用法】 1. when, while和as的区别 （1） when引导的从句的谓语动词可以是延续性的动词，可以是瞬间动词。 例如：When she came in, I was cooking. 当她进来时，我在做饭。 （2） while引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还可以表示对比。 例如：While my wife was reading the newspaper, I was watching TV. I like playing football while you like playing basketball. 我喜欢踢足球，而你喜欢打篮球。 注：在表示“当...时”，when和while的区别可以简单概括为以下结构： When+句子，+句子（be doing）. = 句子（be doing）+when+句子. When he came in, I was singing.=I was singing when he came in. While+句子（be doing）, 句子. = 句子+while+句子（be doing）. While I was singing, he came in.=He came in while I was singing. （3） as表示“一边……一边”，as引导的动作是延续性的动作，一般用于主句和从句动作同时发生；as也可以强调“一先一后。 例如：We always sing as we walk. 我们总是边走边唱。 As we were going out, it began to snow. 当我们出门时，开始下雪了。 2. 由till或until引导的时间状语从句 till和until一般情况下两者可以互换。till不可以用在句首，而until可以放在句首。not ... until...“直到...才...” 例如：I didn't go to bed until（till）my father came back. 直到我父亲回来我才上床睡觉。 3. 由since引导的时间状语从句 一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时。 例如：I have been in Beijing since you left. 自从你离开以来，我一直在北京了。 4. 由as soon as引导的时间状语从句 例如：I will call you as soon as I get to the station. 我一到车站就给你打电话。 5、 【时态和位置】 1. 时态：一般来讲，复合句都要遵循主、从句时态呼应规律，状语从句也不例外。即主句用现在时，从句也用现在时；主句用过去时，从句也用过去的某种时态。 例如：You must see the doctor if you are ill. 如果你生病了，你必须去看医生。 When he was seven years old, he could swim.当他七岁时就会游泳。 时态用法可概括为：主将从现：主句用了将来时，从句就要用现在时。 主过从过：主句用了过去时，从句也要用过去时。 2. 位置：大多数情况下，从句可以位于主句之前，也可以位于主句之后。不过从句在前时，主从句之间必须用逗号隔开。 例如：Please tell me when he comes back. = When he comes back, please tell me. 一、单项选择 1．We don’t know the love of our parents ________ we become parents ourselves one day. A．until B．since C．when D．after 【答案】A 【详解】句意：直到有一天我们自己成为父母，我们才知道父母的爱。考查从属连词辨析。until直到；since自从；when当……的时候；after在……以后。根据“We don’t know the love of our parents...we become parents ourselves one day”可知，这里指直到有一天我们自己成为父母，我们才知道父母的爱，“not…until”意为“直到……才”，故选A。 2．—Time to go home now, Lucy. —Wait a moment. I can’t go home ________ I finish cleaning the classroom. A．until B．since C．when D．after 【答案】A 【详解】句意：——露西，该回家了。——等一下。直到我打扫完教室，我才能回家。考查连词辨析。until直到；since自从； when当……时候；after在……之后。根据“I can’t go home…I finish cleaning the classroom.”可知，not…until…“直到……才”，固定用法。故选A。 3．Don’t wait ________ it’s too late to tell someone how much you love him or her, because when he or she has gone, he or she won’t hear you any more. A．if B．since C．until 【答案】C 【详解】句意：不要等到太晚才告诉别人你有多爱他或她，因为当他或她走了，他或她就不会再听到你了。考查连词辨析。if如果；since自从；until直到。根据“Don’t wait...it’s too late”可知是不要等到太晚才告诉别人你有多爱他或她，用until引导时间状语从句。故选C。 4．To make paper cutting, we need to fold the paper ________ it is cut with scissors. A．before B．so C．although 【答案】A 【详解】句意：制作剪纸，在用剪刀剪开前，我们需要先将纸折叠。考查连词辨析。before在……之前；so所以；although尽管。根据“we need to fold the paper”和“it is cut with scissors”可知，剪纸是先折叠再用剪刀剪。故选A。 5．We have seen much convenience ________ AI came into use. A．since B．until C．if 【答案】A 【详解】句意：自从AI投入使用，我们看到了很多便利。考查连词辨析。since自从；until直到；if如果。根据“We have seen much convenience...AI came into use.”可知，since引导的句子，主句是现在完成时，从句是一般过去时，since“自从……”符合。故选A。 6．Mum has been working in this school since she ________ from university in 2000. A．graduates B．has graduated C．had graduated D．graduated 【答案】D 【详解】句意：妈妈自从2000年大学毕业后就一直在这所学校工作。考查动词时态。根据“since she ... from university in 2000”可知，since引导的时间状语从句时态用一般过去时，动词应用过去式，故选D。 7．We are going to take a trip to Kunming ________ we save enough money. A．so that B．as soon as C．ever since D．even if 【答案】B 【详解】句意：我们一攒够钱，就要去昆明旅游。考查从属连词辨析。so that因此；as soon as一……就……；ever since自从；even if即使。根据“we save enough money”可知，一攒够钱就去旅游，因此应用as soon as引导时间状语从句。故选B。 8．In China, people usually won’t start eating ________ the elders take their seats. A．when B．until C．after 【答案】B 【详解】句意：在中国，人们通常要等到长辈入座后才开始吃饭。考查连词辨析。when当……时；until直到；after在……之后。根据“people usually won’t start eating … the elders take their seats”可知，此处是指直到长辈入座后才开始，短语为not…until表示“直到……才”。故选B。 9．I was sleeping soundly that night ________ a terrible shaking woke me up. A．that B．where C．while D．when 【答案】D 【详解】句意：那天晚上我正睡得很香的时候，突然一阵可怕的摇晃把我吵醒了。考查连词辨析。that以至于/为了(引导从句)；where哪里；while当……时候；when当……时候。根据句意可知，前后句子之间是时间关系，表示“当我正睡得很香的时候”，应用when。故选D。 10．Elon Musk spoke highly of China Space ________ he arrived in China last week. A．as soon as B．unless C．because D．if 【答案】A 【详解】句意：上周，埃隆·马斯克一到中国就高度评价了中国航天公司。 考查连词辨析。as soon as一……就……；unless除非；because因为；if如果。根据“he arrived in China last week”和“Elon Musk spoke highly of China Space”可知，应是一到中国就高度评价了中国航天公司，应用as soon as引导时间状语从句。故选A。 11．The little girl got excited ______ she saw her father in the crowd. A．as soon as B．so that C．even if 【答案】A 【详解】句意：当小女孩在人群中看到她的父亲时，她很兴奋。考查连词辨析。as soon as一……就；so that以便，为了；even if即使。根据“The little girl got excited … she saw her father in the crowd.”可知，此处是指一看到她父亲，小女孩就很兴奋，应用as soon as引导时间状语从句。故选A。 12．We _______ by the river side when a sudden storm hit, so we made our way back. A．walked B．were walking C．have walked 【答案】B 【详解】句意：当一场突如其来的暴风雨袭来时，我们正走在河边，所以我们回去了。 考查状语从句的时态。walked步行，用于一般过去时；were walking正在走，用于过去进行时；have walked用于现在完成时。根据“when a sudden storm hit”可知，本句为when引导的时间状语从句，从句是一般过去时，所以主句应用过去进行时，表示暴风雨来临时正在发生的事，其构成是“was/were+现在分词”，主语为we，需用were。故选B。 13．—Excuse me, is it my turn? —Not yet. Please wait outside ________ your name is called. A．since B．after C．until 【答案】C 【详解】句意：——对不起，轮到我了吗？——还没有。请在外面等着，直到有人叫你的名字。考查连词辨析。since自从；after在……之后；until直到。根据“wait outside...your name is called.”可知是在外面等待直到有人叫你的名字，用until引导。故选C。 14．The ChatGPT has influenced us a lot since its data model ________ the year before. A．makes B．made C．is made D．was made 【答案】D 【详解】句意：自从ChatGPT的数据模型在一年前创建以来，它对我们产生了很大的影响。 考查时态和语态。makes一般现在时，三单形式；made一般过去时，过去式；is made一般现在时的被动语态，被创建；was made一般过去时的被动语态，被创建。主语“data model”和动词make之间是被动关系，需用被动语态，排除AB项；分析句子可知，本句使用了“现在完成时+since+一般过去时”的句式结构，since引导的从句需用一般过去时。故排除C。故选D。 15．Amy didn’t go to bed ________ she finished her homework. A．if B．until C．since 【答案】B 【详解】句意：艾米直到做完作业才上床睡觉。考查连词辨析。if如果；until直到；since自从。根据“Amy didn’t go to bed ... she finished her homework.”可知是直到完成作业才睡觉，not...until“直到……才”，故选B。 16．—I don’t think I can finish the task. —Don’t say so like that. You will never know your strong ability _______ you try. A．after B．until C．if D．since 【答案】B 【详解】句意：——我认为我不能完成这项任务。——不要那样说。直到你尝试了你才会了解自己强大的能力。考查连词辨析。after在……之后；until直到；if如果；since自从。由否定副词never可以判断出此句应用固定表达“not…until”，意为“直到……才……”，引导时间状语从句，故选B。 17．I was so excited ________ I succeeded in passing the senior high school entrance examination. A．that B．when C．unless 【答案】B 【详解】句意：当我成功通过中考时，我是如此的激动。考查连词。that可接宾语从句；when当；unless除非。根据“I was so excited…I succeeded in passing the senior high school entrance examination.”可知是指当我成功通过中考时，我是如此的激动，故选B。 18．—Shall we go now? —No. The lights are red. Please wait ______ they turn green. A．because B．until C．if D．though 【答案】B 【详解】句意：——我们现在可以走了吗？——不。灯是红色的。请等到它们变成绿色。 考查连词辨析。because因为；until直到；if如果；though尽管。根据“The lights are red. Please wait... they turn green.”可知，要等到红灯变绿，until符合语境，故选B。 19．China’s AI cartoon Qianqiu shisong (千秋诗颂) will catch people’s attention _______ it appears. A．in order that B．as long as C．as soon as D．so that 【答案】C 【详解】句意：中国的AI动画片《千秋诗颂》一出现就会引起人们的注意。考查连词。in order that为了，后跟句子；as long as只要；as soon as一……就……；so that以便，为了。根据“China’s AI cartoon Qianqiu shisong (千秋诗颂) will catch people’s attention…it appears.”可知，应是一亮相就会引起人们的关注，所以用as soon as引导时间状语从句，故选C。 20．—Mary, when did you go to bed last night? —I didn’t go to bed ________ I finished reading the novel The Three Body Problem. A．until B．although C．if D．after 【答案】A 【详解】句意：——玛丽，你昨晚什么时候去睡觉的？——我直到读完小说《三体》才上床睡觉。考查从属连词辨析。until直到；although虽然；if如果；after之后。根据“I didn’t go to bed…I finished reading the novel”可知，直到读完小说才睡觉，not…until直到……才，是固定搭配。故选A。 21．—Hurry up! We’re going to be late! —Wait a minute. Don’t cross the street ______ the traffic lights turn green. A．while B．until C．after 【答案】B 【详解】句意：——快点！我们要迟到了！——等一下。在交通灯变绿之前不要过马路。 考查从属连词辨析。while当……时；until直到；after在……之后。根据“Don’t cross the street...the traffic lights turn green.”可知，此处表示直到绿灯亮时才能过马路，用固定搭配not...until...“直到……才……”。故选B。 22．Life is like a mirror. _________ you smile at it, it will smile back. A．Though B．Unless C．Until D．When 【答案】D 【详解】句意：生活就像一面镜子。当你朝它微笑时，它也会对你微笑。 考查从属连词辨析。though尽管，可引导让步状语从句；unless除非，引导条件状语从句；until直到，引导时间状语从句；when当……时，引导时间状语从句。根据“...you smile at it, it will smile back”可知，此处表达当你朝它微笑时，when符合语境。故选D。 23．We didn’t leave school yesterday ________ we cleaned the classroom carefully. A．when B．since C．until D．if 【答案】C 【详解】句意：昨天直到我们仔细打扫完教室，我们才离开了学校。考查连词辨析。when当……时；since自从……；until直到……；if如果。根据“We didn’t leave school”可知，此处为not...until结构，意为“直到……才……”，故选C。 24．She became famous in town ________ she won first prize in the singing competition. A．unless B．if C．after D．although 【答案】C 【详解】句意：她在歌唱比赛中获得第一名后就在镇上出名了。考查连词辨析。unless除非；if如果；after在……之后；although尽管。分析句子结构可知，此处是指她获得歌唱比赛第一名之后在小镇上出名了，应用after引导时间状语从句。故选C。 25．—Look, Here comes our school bus. —No hurry. Don’t get on it ________ it has stopped. A．after B．until C．since D．when 【答案】B 【详解】句意：——看！我们的校车来了。——别急。在它停下来之前不要上去。考查连词辨析。after在……之后；until直到……；since自从；when当……时。根据“No hurry”可知，此处表达的是“在它停下来之前不要上去”，即“直到它停了才上车”，not...until...表示“ 直到……才”。故选B。 语法三：条件状语从句 【语法讲解】 一、条件状语从句的引导词 1. if，如果 e.g.: If you ask him for help, he will give you a hand. 如果你向他求助，他会给你提供帮助。 2. unless 除非（= if ... not） e.g.: Unless you tell him the truth, he won’t trust you any more. = If you don’t tell him the truth, he won’t trust you any more. 除非你告诉他真相，否则他不会再相信你。 3. as long as 只要 e.g.: As long as you keep trying, you will solve this problem. 只要你继续尝试，你最终会解决这个问题的。 二、条件状语从句的时态 主句表示将来概念，从句需要使用一般现在时表示将来，即“主将从现”原则。 1. 主句为一般将来时，从句用一般现在时，如： e.g.: We will go climbing tomorrow if it doesn’t rain. 如果明天不下雨，我们就去爬山。 2. 主句谓语动词为can, may, must等情态动词时，从句用一般现在时，如： e.g.: You can make your dream come true as long as you don’t give up. 只要你不放弃，你就能实现梦想。 We must leave right now if we want to get to the airport on time. 如果我们想要准时达到机场，我们现在就必须动身。 3. 主句为祈使句，从句用一般现在时，如： e.g.: Don’t break your promises if you need others’ trust. 如果你想要别人的信任，就不要违背诺言。 三、区分条件状语从句连词if（如果）和宾语从句连词if（是否） if表示“如果”时，引导条件状语从句，从句需要遵循“主将从现”原则； if表示“是否”时，引导宾语从句，从句时态可使用将来时。 e.g.: I will call you if I have free time. 如果我有空余时间，我会给你打电话。 She is wondering if Mike will come to the party. 她在想，迈克能否来参加派对。 四、时间状语从句、原因状语从句、让步状语从句 1. 时间状语从句引导词：when (当……时), as (随着), until (直到)，as soon as (一……就……)，not ... until ... (直到……才……) 【注意】时间状语从句的时态也需要遵循“主将从现”原则。 e.g.: Mom was cooking dinner when I got back home. 我回家时，妈妈正在做晚饭。 As time went by, he gradually realized his mistake. 随着时间推移，他渐渐意识到了自己的错误。 I kept waiting until 10:00 p.m. yesterday. 我昨天晚上一直等到十点。 Please call me as soon as you arrive. 请你达到后，就给我打电话。 He didn’t go to bed until his parents came back last night. 昨晚，他父母回家后，他才睡觉。 2. 原因状语从句引导词：because (因为), as (由于) e.g.: I didn’t go to the party because I needed to study for my exam. 我没有去派对，是因为我要准备考试。 She may need some help as she is new here. 她是新来的，可能需要一些帮助。 3. 让步状语从句引导词：although/though (虽然，即使), even though/if (即使) e.g.: Although I failed many times, I will still keep trying. 虽然我失败了很多次，我还是会继续尝试。 1．I will try my best to prepare for the competition ________ I get the chance to enter it. A．unless B．if C．although D．but 【答案】B 【详解】句意：如果我有机会参加比赛，我会尽我最大的努力为比赛做准备。考查连词辨析；unless除非；if如果；although尽管；but但是。“I get the chance to enter it”是“I will try my best to prepare for the competition”的肯定条件，用if引导条件状语从句，故选B。 2．We can help protect the environment ________ we change our bad habits. A．if B．since C．though D．unless 【答案】A 【详解】句意：如果我们改变坏习惯，我们就能帮助保护环境。 考查连词辨析。if如果；since自从；though虽然；unless除非。根据“We can help protect the environment ... we change our bad habits.”可知，是指如果改变坏习惯，就能帮助保护环境，用if引导条件状语从句。故选A。 3．______ you don’t give it up, you may succeed in getting a scholarship. A．Until B．Unless C．If D．Whenever 【答案】C 【详解】句意：如果你不放弃，你可能会成功获得奖学金。考查连词辨析。Until直到；Unless除非，如果不；If如果；Whenever无论何时。“you don’t give it up”为“you may succeed in getting a scholarship”的条件，if引导条件状语从句。故选C。 4．—You look so worried, Cathy. What’s the matter? —I will have to close my café _________ my business improves. A．if B．since C．until D．unless 【答案】D 【详解】句意：——Cathy，你看起来如此担心。怎么了？——除非我的生意有所改善，否则我必须关闭我的咖啡馆。考查连词辨析。if如果；since自从；until直到；unless除非。根据“I will have to close my café…my business improves.”可知，此处要用unless引导条件状语从句，表示除非生意有所改善，否则就要关闭咖啡馆。故选D。 5．—Mike, how about going to visit Mi Fu Calligraphy Park this weekend? —OK, ________ it rains heavily. A．if B．when C．until D．unless 【答案】D 【详解】句意：——Mike，这个周末去参观米芾书法公园怎么样？——好的，除非下大雨。 考查连词辨析。if如果；when当……时；until直到；unless除非。根据“it rains heavily”可知，此处应用unless引导条件状语从句，表示除非下大雨，否则就去参观米芾书法公园。故选D。 6．—There are fewer and fewer tigers in the world. —I agree. The situation will continue ________ humans stop hunting them for their fur and bones. A．if B．unless C．because 【答案】B 【详解】句意：——世界上的老虎越来越少了。——我同意。除非人类停止为了毛皮和骨头而猎杀它们，否则这种情况将继续下去。考查连词辨析。if如果；unless除非；because因为。根据“The situation will continue ... humans stop hunting them for their fur and bones.”可知，此处是指除非人类停止捕杀，否则情况会继续，空后句是前句的否定条件，用unless引导条件状语从句。故选B。 7．________ you keep English diaries as a habit, your writing skill will be developed. A．As long as B．Even though C．In order that 【答案】A 【详解】句意：只要你养成写英语日记的习惯，你的写作技巧就会得到提高。考查连词辨析。As long as只要；Even though虽然；In order that为了。根据“…you keep English diaries as a habit, your writing skill will be developed.”的语境并结合选项可知，此处指只要某个条件被满足或特定的情况存在，就可以做某件事或达到某个目标，应用as long as引导条件状语从句。故选A。 8．________ you get the news of the girl, please tell her parents as soon as possible. A．Once B．Until C．Although 【答案】A 【详解】句意：一旦你得到那个女孩的消息，请尽快告诉她的父母。考查条件状语从句。Once一旦；Until直到；Although尽管。根据“... you get the news of the girl, please tell her parents as soon as possible.”可知，这句话是一个条件状语从句，表示“一旦得到消息”，故选A。 9．We may face serious problems _______ we take better care of the Earth. A．if B．unless C．though D．as 【答案】B 【详解】句意：除非我们更好地保护地球，否则我们可能会面临严重的问题。 考查连词辨析。if如果；unless除非；though尽管；as因为，由于。分析句子结构可知，“we take better care of the Earth”是“We may face serious problems”的否定条件，应用unless引导条件状语从句。故选B。 10．You won’t be allowed into the concert ________ you show your ticket at the entrance. A．if B．unless C．though D．since 【答案】B 【详解】句意：除非你在入口处出示票，否则你不被允许进入参加音乐会。考查连词辨析。if如果；unless除非；though虽然；since自从。根据“You won’t be allowed into the concert…you show your ticket at the entrance.”可知，前后句是条件关系，后面表示否定条件，此处指除非出示票，否则不能进入音乐会。故选B。 11．I’ll be able to finish the project on time ________ there are unexpected delays. A．when B．because C．unless D．though 【答案】C 【详解】句意：除非出现意外延误，否则我能按时完成这个项目。考查从属连词辨析。when当……时；because因为；unless除非；though尽管。根据“to finish the project on time…there are unexpected delays.”可知，此处指的是“除非”出现意外延误，否则我能按时完成这个项目，用unless引导状语从句。故选C。 12．It will be difficult for Gary to complete all the tasks ________ he can manage the time well. A．if B．although C．because D．unless 【答案】D 【详解】句意：除非Gary能很好地管理时间，否则他将很难完成所有任务。考查连词词义辨析。if如果；although尽管；because因为；unless除非，如果不。根据“It will be difficult for Gary to complete all the tasks...he can manage the time well.”可知，后句是前句的否定条件，即：如果不能很好地管理时间，那么完成任务会很困难，所以用unless引导条件状语从句。故选D。 13．You’ll miss the interesting details in the story ________ you pay special attention. A．unless B．as long as C．if D．because 【答案】A 【详解】句意：除非你特别注意，否则你会错过故事中有趣的细节。考查连词辨析。unless除非；as long as只要；if如果；because因为。“you pay special attention”是“You’ll miss the interesting details in the story”的否定条件，因此应用unless来引导条件状语从句。故选A。 14．________ the rain stops, the organizers are very likely to cancel the fireworks display. A．Unless B．Until C．Because D．If 【答案】A 【详解】句意：除非雨停，否则组织者很可能取消烟花表演。考查连词辨析。Unless除非；Until直到；Because因为；If如果。根据“the organizers are very likely to cancel the fireworks display”可知，此处应指除非雨停，否则就会取消烟花表演，unless“除非”，引导条件状语从句。故选A。 15．You won’t have a chance to win the contest ________ you don’t prepare enough. A．unless B．though C．if D．after 【答案】C 【详解】句意：如果你不充分准备，你就没有机会赢得比赛。考查连词辨析。unless除非；though虽然；if如果；after在……后。根据空格前后句可知，后一句是前一句的条件，即如果没有充分准备，就没有机会赢得比赛，此处应用if引导条件状语从句。故选C。 16．_________ you go around China, you will know more about its culture. A．If B．Unless C．Until D．Although 【答案】A 【详解】句意：如果你到中国转转，你会对中国文化有更多的了解。考查条件状语从句。If如果；Unless除非；Until直到；Although尽管。根据“...you go around China, you will know more about its culture.”可知，此句表达如果到中国转转，就会对中国文化有更多的了解。该句是由if引导的条件状语从句，主句一般将来时，从句一般现在时。故选A。 17．Amy goes jogging in Century Park every morning ______ it rains. A．unless B．till C．since D．as 【答案】A 【详解】句意：除非下雨，艾米每天早上都会去世纪公园慢跑。考查连词辨析。unless除非；till直到；since自从；as因为。根据“Amy goes jogging in Century Park every morning ... it rains.”可知，空后句是前句的否定条件，用unless引导条件状语从句。故选A。 18．Dreams don’t work ________ you must work hard for them. A．if B．though C．unless 【答案】C 【详解】句意：梦想不会实现，除非你必须为之努力。考查连词辨析。if如果；though虽然；unless除非。根据“Dreams don’t work...you must work hard for them.”可知后句是前句的否定条件，即：如果你不为梦想努力，梦想就不会实现，应用unless引导条件状语从句。故选C。 19．—How is Mary getting on with her lessons? —She will fail the exam ________ she studies harder. A．if B．unless C．as long as D．after 【答案】B 【详解】句意：——玛丽的功课进展如何？——除非她更加努力学习，否则她考试会不及格。 考查从属连词。if如果；unless除非；as long as只要；after在……之后。根据“She will fail the exam ... she studies harder.”可知，她不会通过考试，除非她更加努力地学习，用unless引导条件状语从句。故选B。 20．—Is your QQ account safe? —Yes, nobody can use it ________ they have the password. A．unless B．when C．since D．if 【答案】A 【详解】句意：——你的QQ账号安全吗? ——是的，没有人可以使用它，除非他们有密码。 考查连词辨析。unless除非；when当……时；since自从；if如果。 根据“nobody can use it…they have the password”可知，此处表明除非有密码，否则就不能使用账户，因此应选择unless。故选A。 21．—Learning a new language is like learning to swim. —Yes. ________ we are trying our best, we’ll find it easy. A．Although B．Unless C．If D．Before 【答案】C 【详解】句意：——学习一门新语言就像学习游泳一样。——是的。如果我们尽最大努力，我们会发现这很容易。考查连词辨析。Although虽然；Unless除非；If如果；Before在……之前。根据“…we are trying our best, we’ll find it easy.”可知，是指如果我们尽最大努力，我们会发现这很容易，应用if引导条件状语从句。故选C。 22．You will not take the lead ________ you put your whole heart into the final exam. A．unless B．whenever C．though D．since 【答案】A 【详解】句意：除非你全心投入期末考试，否则你不会领先。考查连词辨析。unless除非；whenever 无论何时；though尽管；since因为。后一句是前一句的否定条件，unless符合句意，故选A。 23．I’m afraid that we can’t _________ the math problem _________ the teacher helps us. A．work out; if B．work on; if C．work out; unless D．work on; unless 【答案】C 【详解】句意：恐怕我们解不出这道数学题，除非老师帮助我们。考查动词短语和连词辨析。work out解出；work on从事于；if如果；unless除非。分析选项和“we can’t...the math problem...the teacher helps us.”可知，此处表示除非老师帮助我们，否则我们解不出这道数学题，第一空应用短语work out；第二空后的从句表示否定条件，所以应用unless引导此条件状语从句。故选C。 24．—What are you going to do tomorrow? —I will play soccer ________ my mother lets me go out. A．if B．before C．until 【答案】A 【详解】句意：——你明天打算做什么?  ——如果妈妈让我出去，我就去踢足球。考查连词辨析。if如果；before在⋅⋅⋅⋅⋅⋅之前；until直到。分析句子可知，后句是前句的肯定条件，需用if“如果”，引导条件状语从句。故选A。 25．—It is said that President Xi came to our school yesterday. —I won’t believe it ________ I see him with my own eyes. A．unless B．because C．after D．though 【答案】A 【详解】句意：——据说习主席昨天来我们学校了。——除非我亲眼见到他，否则我不会相信的。考查从属连词辨析。unless除非；because因为；after在……之后；though虽然。由“I won’t believe it...I see him with my own eyes.”可知，空后句是前句的否定条件，所以应用unless引导条件状语从句。故选A。 1 / 14 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$