主从复合句（讲义）-2025-2026学年中考英语一轮复习

专题十三：主从复合句 第一部分、宾语从句 考点：宾语从句的用法 1、宾语从句：就是从句在整个句子中充当宾语的复合句式等。 2、宾语从句的引导词： 引导词 用法 例句 易错点 That 从句表事实/陈述，that可省略 1. I think (that) she is right.（我认为她是对的。） 2. He told me (that) he liked music.（他告诉我他喜欢音乐。） 动词（think/say/tell）后接陈述句，that省略不影响句意 一般疑问句→if/whether 从句表“是否”，if/whether可互换；whether可接or not，if不可 1. She asks if/whether it will rain.（她问是否会下雨。） 2. Do you know whether he will come or not?（你知道他是否会来吗？） 避免“if...or not”，要用“whether...or not” 特殊疑问句→疑问词 用原疑问词（what/who/where等）作引导词，不可省略 1. Do you know what he bought?（你知道他买了什么吗？） 2. I don’t know where she lives..（我不知道她住在哪。） 疑问词在从句中需充当成分（主语/宾语/状语等） 3、宾语从句的语序 由 whether/ if 和特殊疑问词引导的宾语从句要用陈述语序，原来的倒装语序改成陈述语序时注意相应的助动词和动词的变化等。 例句：Where does your father work? Can you tell us? →Can you tell us where your father works? 你能告诉我们你爸爸在哪里工作吗？ 例句：Did you get home very late? He asked me. →He asked me if I got home very late. 他问我是否到家很晚。 4、宾语从句的时态 分类 用法 例句 易错点 主句现→从句任意时 主句是一般现在时，从句根据实际语境选时态 1. She says she is reading now.（现进行时） 2. He tells me he will go tomorrow.（一般将来时） 不受主句限制，看从句动作发生的时间 主句过→从句过时态 主句是一般过去时，从句用过去类时态（过现/过进/过将等） 1. He said he was a student.（一般过去时）2. She told me she would come soon.（过去将来时） 注意“will→would”“is→was”等时态转换 从句是客观真理→现单三 无论主句时态，从句用一般现在时 1. The teacher said the moon goes around the earth.（月亮绕地球转）2. He told us light travels fast.（光传播得快） 客观真理/科学事实永用一般现在时，不受主句过去时影响 5、宾语从句的否定转移 主句如果是 I think/ believe/ imagine/ suppose/ guess/ expect 等，从句的否定一般要转移到主 句中，其反意疑问句与从句一致。例例句： 例句：I don’t think they’ll wait to the last minute ，will they？ 我认为他们不会等到最后一分钟，他们会吗？ 例句：I don’t believe he did this, did he? 我相信他不会做这样的事，他会吗？ 【基础练习】 一、单项选择 1．— Do you think Jack can get good marks? — I never doubt ________ he will win the race. A．if B．that C．how D．whether 2．—I beg your pardon, I didn’t catch you. —I just asked _____________. A．that you enjoyed your birthday party last night B．where do your classmates buy the birthday gifts C．if you invited your classmates to your birthday party D．whether you like the birthday gifts from your classmates 3．—Do you know ________ we’ll get there at 3:00 this afternoon? —I’m afraid we’ll be late. A．that B．how C．why D．if 4．— Could you tell me ________? I’m going to pick you up at the airport. —At five forty-five this Friday. A．where you met me B．who you are coming with C．what time you are arriving 5．—Could you please tell me ________? —The Wright Brothers. A．when the plane was invented B．who the plane was invented by C．how the plane was invented 6．—Could you tell me ________? —Go along the street and turn left at the second crossing. A．which is the way to the library B．how can I get to the library C．where I could buy some stamps 7．Alice couldn’t find out ________, so she handed it to the teacher. A．whose book was it B．who’s the book C．whose book may it D．whose book it was 8．You can eat ________ you like. Help yourself. A．whatever B．when C．however 9．—Do you know _________ the bookstore closes today? I need to buy a dictionary. —I’m not sure if it closes at 6 p.m., but you’d better go quickly. A．what B．when C．where D．why 10．— I’m looking forward to China’s 15th National Games. Do you know ________? — Yes, in Guangzhou, Hong Kong and Macao. A．when will it be held B．when it will be held C．where will it be held D．where it will be held 11．—In today’s after-school-service class, we talked about ________. —That’s a good topic for teenagers’ mental (心理) health. A．how we could keep a good feeling B．how we can get better grades C．how can we manage our time D．how could we be helpful 12．—Fiona planned to join our dance club. Do you know ________? —Maybe she didn’t have enough time for it. A．why she suddenly changes her mind B．why did she suddenly change her mind C．why she suddenly changed her mind 13．David will do _________ his mother asks him. A．however B．whatever C．whoever 14．Father’s Day is coming. I’m thinking about ________. A．what present I gave him B．how I will give him a surprise C．if I planned a party for him D．where we had a big meal 15．—What did you learn in physics class? —The teacher told us the light ________ faster than the sound. A．travelling B．travelled C．travel D．travels 16．—Lily didn’t appear at the school party yesterday. Do you know ________? —Oh, she had a bad cold. A．What was wrong with her B．what wrong she was C．what she happened D．what happened she was 17．I ________ to interrupt others while they are talking. A．think it is not polite B．don’t think it is polite C．think it’s polite D．don’t think it’s not polite 第二部分、定语从句 考点：定语从句的定义和用法 1、 初中定语从句核心：用句子修饰名词/代词，本质是“加长版的形容词”，分两类核心考点。 The woman who（lives next door is a teacher. ） 先行词 连接词 定语从句 2、基本结构：先行词+引导词+定语从句 （1） 先行词：放在引导词前面被从句修饰的名词/代词（比例句：the book, the girl）。 （2）关系词：连接主句和从句的词，分两类： 关系代词：在从句中作主语/宾语（who, whom, which, that, whose） 关系副词：在从句中作状语（when时间, where地点, why原因） （3）定语从句：紧跟先行词，用关系词引导的句子。 3、核心关系词用法 分类 关系词 指代对象 从句中作用 例句 关系代词 who 人（主格） 主语 The boy who is smiling is Tom.（微笑的男孩是汤姆） whom 人（宾格） 宾语（可省） The girl whom you met is my sister.（你见的女孩是我姐） which 物/事 主语/宾语 This is the pen which I lost.（这是我丢的笔） that 人/物 主语/宾语（可省） The book that he gave me is fun.（他给我的书很有趣） whose 人/物的“……的” 定语（表所属） The girl whose hair is long is Lucy.（长发女孩是露西） 关系副词 where 地点 地点状语 This is the park where we played.（这是我们玩过的公园） when 时间 时间状语 This was the time when he arrived. 这是他到达的时间。 why 原因 原因状语 Nobody knows the reason why he is often late for school. 没人知道他为什么上学总迟到。 考点：定语从句易错点 1. 关系词“that/which/who”混淆 错误：先行词既有人又有物时，误用which/who 正解：必须用that（唯一选项） 例句：The teacher and her class that I visited were great.（√） 2. 介词提前时的关系词错误 错误：介词在关系词前，用了that/who 正解：只能用“介词+whom（人）/which（物）”，且不可省 例句：The pen with which I write is new.（√）；The pen with that I write is new.（×） 3. “关系代词省略”的过度使用 错误：关系词作主语时，误省略that/which/who 正解：关系词作主语时绝对不能省，作宾语时才可以省 例句：The girl who sings well is Lucy.（who不可省，作主语）；The book (that) I read is fun.（that可省，作宾语） 4. “where”和“which”的误用 错误：看到“地点”就用where，忽略从句是否缺宾语 正解：从句缺宾语用which，不缺宾语用where 例句：This is the city which we visited.（缺宾语，visited后没名词）；This is the city where we lived.（不缺宾语，lived后有in的含义） 5. whose的所属关系混淆 错误：表“物的所属”时，不会用whose或of which 正解：whose可代人/物，=“of which（物）/of whom（人）” 例句：The house whose window is broken = The house of which the window is broken.（√） 【随堂练习】 一、单项选择 1．Tommy said he was the only person ________ I could trust in this town. A．which B．that C．whose D．how 2．—Have you heard of the most beautiful place ________ he visited last winter? —Yes, it is the beautiful place in ________ Lu Xun was born. A．/, which B．that, that C．which, / 3．This is the place ________ he often mentioned, but I have no ________ about it. A．/; sense B．which; idea C．where; humour D．that; doubt 4．The young man __________ is leaving for Japan next Saturday. A．the girl is talking to him B．who the girl is talking to C．which the girl is talking to D．who the girl is talking 5．Success always belongs to those ________ try their best to make their dream come true. A．whose B．whom C．who 6．That’s the new instrument ________ parts are too small to be seen. A．that B．which C．whose 7．Do you know the year ________ the Chinese Communist Party was founded? A．which B．that C．when D．on which 8．The famous actor invited the journalist to the small theater ________ his career began. There, he shared the way ________ he improved his acting skills. A．where; where B．which; where C．where; / D．which: / 9．Shanghai is experiencing another extreme heatwave, ________ has become more frequent in recent years due to climate change. A．that B．which C．who D．when 10．_______, different cultures have different ways of celebrating festivals. A．It is known that B．As is known to all C．What is known D．Which is known that 11．In the USA, conversation is less lively than in many other cultures, ____ everyone talks at the same time. A．which B．that C．where D．what 12．Your support is important to our work. ________ you can do helps. A．However B．Whoever C．Whatever 第三部分、状语从句 考点：状语从句的定义和用法 1、状语从句：状语从句是句子的状语由一个从句充当，它可以修饰谓语、非谓语动词、定语、状语和整个句子。状语从句都由从属连词引导，与主句连接，放在句末时，一般不在前面加逗号。 2、状语从句的分类 （1）时间状语从句: 引导连词有 when，while，till，not …until，since，after ,before ,as soon as。 例句：I was reading when the phone rang.（电话响时，我正在看书。） （2）地点状语从句：地点状语从句通常由 where, wherever 引导。 例句：Wherever you go, I will be right here waiting for you. 不管你去哪里，我都会在这等你。 （3）原因状语从句： 原因状语从句：表“为什么”，引导词：because、since，as,for。 例句：She cried because she lost her toy.她哭了，因为她丢了她的玩具。 注意：because 语势最强，用来说明人所不知的原因，回答why 提出的问题。当原因是显而易见的或已为人们所知，就用 as或 since。 例句：I didn't go, because I was afraid. 我没有去因为我害怕。 Since /As the weather is so bad, we have to delay our journey.因为天气不好，我们得推迟我们的旅行。 注意：由 because引导的从句如果放在句末，且前面有逗号，则可以用for 来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用 for。 例句：He is absent today, because / for he is ill. 他今天没来，因为他病了。 He must be ill, for he is absent today. 他一定是病，因为他今天没来。 注意：because 不能和 so 连用。 （4）目的状语从句：表“为了”，引导词：so that（为了，常接can/could）。 例句：She studies hard so that she can pass the exam. （5）结果状语从句：结果状语从句：表“所以”，引导词：so…that（如此…以至于）、such…that。 例句：He is so tall that he can reach the shelf. （6）让步状语从句：引导连词有 though ，although; even though/if; whatever; however 例句：Though it’s cold, he still wears a T-shirt. 注意：although ，though 不能和 but 连用。 （7）比较(方式)状语从句：以 than 为引导连词。常见连词(as) …as.., …than…; the … , the … 例句：Jim is older than Lily(is). 吉姆比莉莉年长。 Skiing is more exciting than running. 滑雪比跑步更刺激。 The more you practice, the more knowledge you will get. 你练习越多，得到知识越多。 注意：than 引导的比较状语从句中的谓语常省略。 （8）条件状语从句：条件状语从句：表“如果”，引导词：if（如果）、unless（除非=if not）。 规则：主句将来时，从句用一般现在时（主将从现）。 【基础练习】 一、单项选择 1．—Please tell him the news. —OK. I’ll tell him ________ I see him. A．as soon as B．since C．because D．before 2．Mr Green was talking on the phone ________ I arrived at his office. A．while B．when C．as soon as D．before 3．My dad was cooking in the kitchen ________ my mum was cleaning the house. A．because B．while C．until D．but 4．________ Helen’s knowledge and vocabulary increased, she asked more and more questions. A．Unless B．While C．As D．Before 5．He has been quite different ________ he achieved his dream in 2024. A．when B．since C．so that D．after 6．Please make sure to close the windows ________ you leave the classroom. A．until B．because C．before D．if 7．We ________ able to sing this English song perfectly after we practice it several times. A．are B．were C．will be D．have been 8．I didn’t realize the importance of health ________ I lost it. A．while B．until C．when D．if 9．By the time you arrive in London, we ________ in Europe for two weeks. A．will stay B．will have stayed C．have stayed D．have been staying 10．________ you finish your homework, you can’t watch TV. A．If B．Unless C．When D．Because 11．________ he is 38 years old, he is still the best tennis player in the world. A．When B．Because C．Though 12．WeChat Pay makes our life convenient. We can buy things ________ we don’t take any money. A．even if B．so that C．because D．unless 13．Try to help someone in need, ________ it’s lending a listening ear or offering a praise. A．because B．whether C．though D．unless 14．I want to be a vet ________ I love pets. A．but B．or C．because 15．There are no buses to the beach this time of day. ________ you have a car, you can drive it there at any time you like. A．Since B．After C．Unless D．So 16．The exam must be very difficult, ________ many students failed. A．though B．so C．for D．but 17．She studied very hard ________ she could pass the exam with flying colors. A．in order that B．as long as C．even though D．now that 18．Read the sentence. “As teenagers, we should learn English well so that we have the ability to tell Chinese stories to the world.” The underlined words “so that” are used to ________. A．give a reason B．give an example C．offer some advice D．show the purpose 8 学科网（北京）股份有限公司 $ 专题十三：主从复合句 第一部分、宾语从句 考点：宾语从句的用法 1、宾语从句：就是从句在整个句子中充当宾语的复合句式等。 2、宾语从句的引导词： 引导词 用法 例句 易错点 That 从句表事实/陈述，that可省略 1. I think (that) she is right.（我认为她是对的。） 2. He told me (that) he liked music.（他告诉我他喜欢音乐。） 动词（think/say/tell）后接陈述句，that省略不影响句意 一般疑问句→if/whether 从句表“是否”，if/whether可互换；whether可接or not，if不可 1. She asks if/whether it will rain.（她问是否会下雨。） 2. Do you know whether he will come or not?（你知道他是否会来吗？） 避免“if...or not”，要用“whether...or not” 特殊疑问句→疑问词 用原疑问词（what/who/where等）作引导词，不可省略 1. Do you know what he bought?（你知道他买了什么吗？） 2. I don’t know where she lives..（我不知道她住在哪。） 疑问词在从句中需充当成分（主语/宾语/状语等） 3、宾语从句的语序 由 whether/ if 和特殊疑问词引导的宾语从句要用陈述语序，原来的倒装语序改成陈述语序时注意相应的助动词和动词的变化等。 例句：Where does your father work? Can you tell us? →Can you tell us where your father works? 你能告诉我们你爸爸在哪里工作吗？ 例句：Did you get home very late? He asked me. →He asked me if I got home very late. 他问我是否到家很晚。 4、宾语从句的时态 分类 用法 例句 易错点 主句现→从句任意时 主句是一般现在时，从句根据实际语境选时态 1. She says she is reading now.（现进行时） 2. He tells me he will go tomorrow.（一般将来时） 不受主句限制，看从句动作发生的时间 主句过→从句过时态 主句是一般过去时，从句用过去类时态（过现/过进/过将等） 1. He said he was a student.（一般过去时）2. She told me she would come soon.（过去将来时） 注意“will→would”“is→was”等时态转换 从句是客观真理→现单三 无论主句时态，从句用一般现在时 1. The teacher said the moon goes around the earth.（月亮绕地球转）2. He told us light travels fast.（光传播得快） 客观真理/科学事实永用一般现在时，不受主句过去时影响 5、宾语从句的否定转移 主句如果是 I think/ believe/ imagine/ suppose/ guess/ expect 等，从句的否定一般要转移到主 句中，其反意疑问句与从句一致。例例句： 例句：I don’t think they’ll wait to the last minute ，will they？ 我认为他们不会等到最后一分钟，他们会吗？ 例句：I don’t believe he did this, did he? 我相信他不会做这样的事，他会吗？ 【基础练习】 一、单项选择 1．— Do you think Jack can get good marks? — I never doubt ________ he will win the race. A．if B．that C．how D．whether 【答案】B 2．—I beg your pardon, I didn’t catch you. —I just asked _____________. A．that you enjoyed your birthday party last night B．where do your classmates buy the birthday gifts C．if you invited your classmates to your birthday party D．whether you like the birthday gifts from your classmates 【答案】C 3．—Do you know ________ we’ll get there at 3:00 this afternoon? —I’m afraid we’ll be late. A．that B．how C．why D．if 【答案】D 4．— Could you tell me ________? I’m going to pick you up at the airport. —At five forty-five this Friday. A．where you met me B．who you are coming with C．what time you are arriving 【答案】C 5．—Could you please tell me ________? —The Wright Brothers. A．when the plane was invented B．who the plane was invented by C．how the plane was invented 【答案】B 6．—Could you tell me ________? —Go along the street and turn left at the second crossing. A．which is the way to the library B．how can I get to the library C．where I could buy some stamps 【答案】A 7．Alice couldn’t find out ________, so she handed it to the teacher. A．whose book was it B．who’s the book C．whose book may it D．whose book it was 【答案】D 8．You can eat ________ you like. Help yourself. A．whatever B．when C．however 【答案】A 9．—Do you know _________ the bookstore closes today? I need to buy a dictionary. —I’m not sure if it closes at 6 p.m., but you’d better go quickly. A．what B．when C．where D．why 【答案】B 10．— I’m looking forward to China’s 15th National Games. Do you know ________? — Yes, in Guangzhou, Hong Kong and Macao. A．when will it be held B．when it will be held C．where will it be held D．where it will be held 【答案】D 11．—In today’s after-school-service class, we talked about ________. —That’s a good topic for teenagers’ mental (心理) health. A．how we could keep a good feeling B．how we can get better grades C．how can we manage our time D．how could we be helpful 【答案】A 12．—Fiona planned to join our dance club. Do you know ________? —Maybe she didn’t have enough time for it. A．why she suddenly changes her mind B．why did she suddenly change her mind C．why she suddenly changed her mind 【答案】C 13．David will do _________ his mother asks him. A．however B．whatever C．whoever 【答案】B 14．Father’s Day is coming. I’m thinking about ________. A．what present I gave him B．how I will give him a surprise C．if I planned a party for him D．where we had a big meal 【答案】B 15．—What did you learn in physics class? —The teacher told us the light ________ faster than the sound. A．travelling B．travelled C．travel D．travels 【答案】D 16．—Lily didn’t appear at the school party yesterday. Do you know ________? —Oh, she had a bad cold. A．What was wrong with her B．what wrong she was C．what she happened D．what happened she was 【答案】A 17．I ________ to interrupt others while they are talking. A．think it is not polite B．don’t think it is polite C．think it’s polite D．don’t think it’s not polite 【答案】B 第二部分、定语从句 考点：定语从句的定义和用法 1、 初中定语从句核心：用句子修饰名词/代词，本质是“加长版的形容词”，分两类核心考点。 The woman who（lives next door is a teacher. ） 先行词 连接词 定语从句 2、基本结构：先行词+引导词+定语从句 （1） 先行词：放在引导词前面被从句修饰的名词/代词（比例句：the book, the girl）。 （2）关系词：连接主句和从句的词，分两类： 关系代词：在从句中作主语/宾语（who, whom, which, that, whose） 关系副词：在从句中作状语（when时间, where地点, why原因） （3）定语从句：紧跟先行词，用关系词引导的句子。 3、核心关系词用法 分类 关系词 指代对象 从句中作用 例句 关系代词 who 人（主格） 主语 The boy who is smiling is Tom.（微笑的男孩是汤姆） whom 人（宾格） 宾语（可省） The girl whom you met is my sister.（你见的女孩是我姐） which 物/事 主语/宾语 This is the pen which I lost.（这是我丢的笔） that 人/物 主语/宾语（可省） The book that he gave me is fun.（他给我的书很有趣） whose 人/物的“……的” 定语（表所属） The girl whose hair is long is Lucy.（长发女孩是露西） 关系副词 where 地点 地点状语 This is the park where we played.（这是我们玩过的公园） when 时间 时间状语 This was the time when he arrived. 这是他到达的时间。 why 原因 原因状语 Nobody knows the reason why he is often late for school. 没人知道他为什么上学总迟到。 考点：定语从句易错点 1. 关系词“that/which/who”混淆 错误：先行词既有人又有物时，误用which/who 正解：必须用that（唯一选项） 例句：The teacher and her class that I visited were great.（√） 2. 介词提前时的关系词错误 错误：介词在关系词前，用了that/who 正解：只能用 “介词+whom（人）/which（物）”，且不可省 例句：The pen with which I write is new.（√）；The pen with that I write is new.（×） 3. “关系代词省略”的过度使用 错误：关系词作主语时，误省略that/which/who 正解：关系词作主语时绝对不能省，作宾语时才可以省 例句：The girl who sings well is Lucy.（who不可省，作主语）；The book (that) I read is fun.（that可省，作宾语） 4. “where”和“which”的误用 错误：看到“地点”就用where，忽略从句是否缺宾语 正解：从句缺宾语用which，不缺宾语用where 例句：This is the city which we visited.（缺宾语，visited后没名词）；This is the city where we lived.（不缺宾语，lived后有in的含义） 5. whose的所属关系混淆 错误：表“物的所属”时，不会用whose或of which 正解：whose可代人/物，=“of which（物）/of whom（人）” 例句：The house whose window is broken = The house of which the window is broken.（√） 【随堂练习】 一、单项选择 1．Tommy said he was the only person ________ I could trust in this town. A．which B．that C．whose D．how 【答案】B 2．—Have you heard of the most beautiful place ________ he visited last winter? —Yes, it is the beautiful place in ________ Lu Xun was born. A．/, which B．that, that C．which, / 【答案】A 3．This is the place ________ he often mentioned, but I have no ________ about it. A．/; sense B．which; idea C．where; humour D．that; doubt 【答案】B 4．The young man __________ is leaving for Japan next Saturday. A．the girl is talking to him B．who the girl is talking to C．which the girl is talking to D．who the girl is talking 【答案】B 5．Success always belongs to those ________ try their best to make their dream come true. A．whose B．whom C．who 【答案】C 6．That’s the new instrument ________ parts are too small to be seen. A．that B．which C．whose 【答案】C 7．Do you know the year ________ the Chinese Communist Party was founded? A．which B．that C．when D．on which 【答案】C 8．The famous actor invited the journalist to the small theater ________ his career began. There, he shared the way ________ he improved his acting skills. A．where; where B．which; where C．where; / D．which: / 【答案】C 9．Shanghai is experiencing another extreme heatwave, ________ has become more frequent in recent years due to climate change. A．that B．which C．who D．when 【答案】B 10．_______, different cultures have different ways of celebrating festivals. A．It is known that B．As is known to all C．What is known D．Which is known that 【答案】B 11．In the USA, conversation is less lively than in many other cultures, ____ everyone talks at the same time. A．which B．that C．where D．what 【答案】C 12．Your support is important to our work. ________ you can do helps. A．However B．Whoever C．Whatever 【答案】C 第三部分、状语从句 考点：状语从句的定义和用法 1、状语从句：状语从句是句子的状语由一个从句充当，它可以修饰谓语、非谓语动词、定语、状语和整个句子。状语从句都由从属连词引导，与主句连接，放在句末时，一般不在前面加逗号。 2、状语从句的分类 （1）时间状语从句: 引导连词有 when，while，till，not …until，since，after ,before ,as soon as。 例句：I was reading when the phone rang.（电话响时，我正在看书。） （2）地点状语从句：地点状语从句通常由 where, wherever 引导。 例句：Wherever you go, I will be right here waiting for you. 不管你去哪里，我都会在这等你。 （3）原因状语从句： 原因状语从句：表“为什么”，引导词：because、since，as,for。 例句：She cried because she lost her toy.她哭了，因为她丢了她的玩具。 注意：because 语势最强，用来说明人所不知的原因，回答why 提出的问题。当原因是显而易见的或已为人们所知，就用 as或 since。 例句：I didn't go, because I was afraid. 我没有去因为我害怕。 Since /As the weather is so bad, we have to delay our journey.因为天气不好，我们得推迟我们的旅行。 注意：由 because引导的从句如果放在句末，且前面有逗号，则可以用for 来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用 for。 例句：He is absent today, because / for he is ill. 他今天没来，因为他病了。 He must be ill, for he is absent today. 他一定是病，因为他今天没来。 注意：because 不能和 so 连用。 （4）目的状语从句：表“为了”，引导词：so that（为了，常接can/could）。 例句：She studies hard so that she can pass the exam. （5）结果状语从句：结果状语从句：表“所以”，引导词：so…that（如此…以至于）、such…that。 例句：He is so tall that he can reach the shelf. （6）让步状语从句：引导连词有 though ，although; even though/if; whatever; however 例句：Though it’s cold, he still wears a T-shirt. 注意：although ，though 不能和 but 连用。 （7）比较(方式)状语从句：以 than 为引导连词。常见连词(as) …as.., …than…; the … , the … 例句：Jim is older than Lily(is). 吉姆比莉莉年长。 Skiing is more exciting than running. 滑雪比跑步更刺激。 The more you practice, the more knowledge you will get. 你练习越多，得到知识越多。 注意：than 引导的比较状语从句中的谓语常省略。 （8）条件状语从句：条件状语从句：表“如果”，引导词：if（如果）、unless（除非=if not）。 规则：主句将来时，从句用一般现在时（主将从现）。 【基础练习】 一、单项选择 1．—Please tell him the news. —OK. I’ll tell him ________ I see him. A．as soon as B．since C．because D．before 【答案】A 2．Mr Green was talking on the phone ________ I arrived at his office. A．while B．when C．as soon as D．before 【答案】B 3．My dad was cooking in the kitchen ________ my mum was cleaning the house. A．because B．while C．until D．but 【答案】B 4．________ Helen’s knowledge and vocabulary increased, she asked more and more questions. A．Unless B．While C．As D．Before 【答案】C 5．He has been quite different ________ he achieved his dream in 2024. A．when B．since C．so that D．after 【答案】B 6．Please make sure to close the windows ________ you leave the classroom. A．until B．because C．before D．if 【答案】C 7．We ________ able to sing this English song perfectly after we practice it several times. A．are B．were C．will be D．have been 【答案】C 8．I didn’t realize the importance of health ________ I lost it. A．while B．until C．when D．if 【答案】B 9．By the time you arrive in London, we ________ in Europe for two weeks. A．will stay B．will have stayed C．have stayed D．have been staying 【答案】B 10．________ you finish your homework, you can’t watch TV. A．If B．Unless C．When D．Because 【答案】B 11．________ he is 38 years old, he is still the best tennis player in the world. A．When B．Because C．Though 【答案】C 12．WeChat Pay makes our life convenient. We can buy things ________ we don’t take any money. A．even if B．so that C．because D．unless 【答案】A 13．Try to help someone in need, ________ it’s lending a listening ear or offering a praise. A．because B．whether C．though D．unless 【答案】B 14．I want to be a vet ________ I love pets. A．but B．or C．because 【答案】C 15．There are no buses to the beach this time of day. ________ you have a car, you can drive it there at any time you like. A．Since B．After C．Unless D．So 【答案】A 16．The exam must be very difficult, ________ many students failed. A．though B．so C．for D．but 【答案】C 17．She studied very hard ________ she could pass the exam with flying colors. A．in order that B．as long as C．even though D．now that 【答案】A 18．Read the sentence. “As teenagers, we should learn English well so that we have the ability to tell Chinese stories to the world.” The underlined words “so that” are used to ________. A．give a reason B．give an example C．offer some advice D．show the purpose 【答案】D 8 学科网（北京）股份有限公司 $