Unit 1-2 语法Grammar 时间状语从句-2025-2026学年八年级英语上册单元重难点易错题精练（沪教版五四学制2024）

班级 姓名 学号 分数 Unit 1 Water 时间状语从句 （时间：60分钟，满分：100分） 一、单项选择(本大题共40小题，每小题2分，共80分) 1．A monkey took Jack’s bag away ________ he was sleeping in a tree house. A．while B．before C．till D．after 2．________ the bad man was leaving, the police came and caught him. A．So B．If C．But D．As 3．—Mum, when can you take me out for the shopping? —Not ________ your father arrives home. A．before B．since C．after D．until 4．________ the light were changing to red, a kid suddenly ran into the street. A．Unless B．While C．Since D．Before 5．We don’t know the love of our parents _________ we become parents ourselves one day. A．after B．when C．since D．until 6．— Jack, have you done the survey? — Not yet. I am in New York now. I’ll start it ________ I come back. A．whenever B．as soon as C．before D．after 7．—What were you and your brother doing at this time yesterday? —He was reading a magazine ________ I was writing an email at home. A．after B．until C．while D．as soon as 8．Wash your hands ________ you have dinner. A．when B．before C．after 9．John was taking photos ______ Mary was walking towards the shop. A．unless B．if C．while D．until 10．Jimmy was very excited to tell his parents ______ he got the good news. A．even if B．so that C．as long as D．as soon as 11．He didn’t leave the office ________ he finished all the work. A．until B．after C．before D．because 12．There are fewer places for the animals to live in ________ people cut down so many trees. A．after B．before C．until D．and 13．Remember to knock on the door ________ you go into the teachers’ office. A．after B．before C．but D．so 14．Wuxi has been popular ________ the Spring Festival Gala showed its beauty to the world. A．until B．if C．before D．since 15．Alice won second prize in the competition. ________ she stood on the stage with flowers in hands, her eyes were filled with tears. A．Until B．After C．While D．As 16．The girl was doing her homework ________ her mother came back home. A．before B．after C．as soon as D．when 17．—What were you doing ________ the rainstorm came? —I was doing my homework. A．when B．while C．as D．until 18．Tom didn’t go to bed ________ his father came back last night. A．although B．so C．because D．until 19．—Could you please help me take out the rubbish? —Sure. I will do it ________ I finish my book report. A．as soon as B．even though C．so that D．as far as 20．James always shares some housework ________ his parents work hard. A．but B．or C．when D．before 21．________ education in a country develops, the country will develop, and strong education makes a strong nation. A．Although B．Before C．Unless D．When 22．It is necessary to ask your parents or teachers for some advice ________ you make the final decision. A．before B．after C．because 23．Time waits for no man, but some people will never realise the value of time ________ it’s gone. A．as long as B．as soon as C．until D．since 24．Look! Harry is doing his homework ________ his sister is drawing. A．if B．while C．before D．till 25．Mary says good night to her parents ________ she goes to bed every day. A．if B．until C．before D．unless 26．My mother was watching TV ________ my father was reading a book at eight o’clock last night. A．while B．since C．before D．because 27．Many students didn’t realize the importance of study ________ they left school. A．until B．when C．after 28．Many people do not realize the importance of health ________ they have fallen ill. A．until B．unless C．while D．since 29．You won’t know how important health is ________ you lose it. A．until B．if C．though D．after 30．—May I play with my dog? —I am afraid not. You can’t play with it ________ you finish your homework A．when B．until C．after D．because 31．I get into the habit of washing my hands ________ I get home. A．as soon as B．as far as C．as fast as 32．We met a nice and friendly neighbor ________ we lived in Shanghai. A．if B．although C．since D．when 33．Don’t listen to music ________ you are doing homework. A．if B．because C．as D．while 34．You will never truly understand your parents’ great love ________ you grow up. A．if B．until C．when 35．Don’t worry about me. I will send you a message ________ I get to Zigong. A．as soon as B．although C．in order to 36．Many people didn’t know the importance of protecting wild animals ________ some of them died out. A．when B．after C．until D．so 37．My uncle has worked in the TV station ________ he graduated from university. A．because B．although C．if D．since 38．It has been more than forty years ________ the club was set up. A．since B．although C．unless D．if 39．I’m sorry but nothing can be done ________ the manager returns. A．when B．as soon as C．until D．because 40．Don’t get off the bus until it _________. A．will stop B．stops C．shall stop D．is stopped 二、完成句子(本大题共10小题，每小题2分，共20分) 41．在他的空闲时间，他通常读科学书。 He usually reads . 42．当杰克遇到困难的时候，他向我求助。 When Jack meets some difficulties, he me . 43．你们做作业时，请不要闲聊。 Please don’t chat you’re your homework. 44．随着白天变短，气温下降，不久雪季来临。 , soon the snowy season will begin. 45．我们自从参加唱歌比赛后就成了好朋友。 We have been good friends since we the singing competition. 46．汤姆花了很长时间才从树上下来。 he came down the tree. 47．听说了那场事故，孩子们都难过得说不出来话。 The children were anything after they the accident. 48．如果有一辆车开过来，直到真的安全了，你才会过马路。 If a car comes, you the road until it is really safe. 49．许多孩子一到医院门口就会感到紧张。 Many children will feel nervous they go near the gate of the hospital. 50．直到失去健康你才会意识到它的重要性。 You realize health you lose it. 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$ 班级 姓名 学号 分数 Unit 1 Water 时间状语从句 （时间：60分钟，满分：100分） 一、单项选择(本大题共40小题，每小题2分，共80分) 1．A monkey took Jack’s bag away ________ he was sleeping in a tree house. A．while B．before C．till D．after 【答案】A 【详解】句意：当杰克在树屋里睡觉时，一只猴子拿走了他的包。 考查连词辨析。while当……时候；before在……之前；till直到；after在……之后。根据句意，猴子拿走包的动作与杰克睡觉的动作同时发生。故选A。 2．________ the bad man was leaving, the police came and caught him. A．So B．If C．But D．As 【答案】D 【详解】句意：当这个坏人正要离开时，警察来了并抓住了他。 考查连词辨析。So因此；If如果；But但是；As当……时。根据“the bad man was leaving, the police came and caught him.”可知，此处描述这个坏人要离开时被警察抓住了，用as引导时间状语从句。故选D。 3．—Mum, when can you take me out for the shopping? —Not ________ your father arrives home. A．before B．since C．after D．until 【答案】D 【详解】句意：——妈妈，你什么时候能带我去购物呢？——直到你父亲回家为止。 考查连词辨析。before在……之前；since自从；after在……之后；until直到。根据“Not ... your father arrives home.”可知，是not until“直到……才”的结构，表示直到爸爸回家才能去购物。故选D。 4．________ the light were changing to red, a kid suddenly ran into the street. A．Unless B．While C．Since D．Before 【答案】B 【详解】句意：当交通灯正要变成红灯时，一个小孩突然跑到了街上。 考查连词辨析。Unless除非，如果不，引导条件状语从句；While当……时候，强调主从句动作同时发生；Since自从，既然，引导时间状语从句或原因状语从句；Before在……之前，引导时间状语从句。根据“...the light were changing to red, a kid suddenly ran into the street.”可知，此处表达的是“当交通灯变化时，小孩跑上街”，强调两个动作同时进行，所以应用While引导时间状语从句，故选B。 5．We don’t know the love of our parents _________ we become parents ourselves one day. A．after B．when C．since D．until 【答案】D 【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。 考查连词辨析。after在……之后；when当……时；since自从；until直到。根据“We don’t know the love of our parents...we become parents ourselves one day.”可知，此处考查固定搭配：not...until“直到……才”。故选D。 6．— Jack, have you done the survey? — Not yet. I am in New York now. I’ll start it ________ I come back. A．whenever B．as soon as C．before D．after 【答案】B 【详解】句意：——杰克，你做过调查了吗？——还没有。我现在在纽约。我一回来，就开始。 考查从属连词辨析。whenever无论何时；as soon as一……就……；before在……之前；after在……之后。根据“I’ll start it as soon as I come back”可知，此处表示一回来就会开始做调查，故用as soon as。故选B。 7．—What were you and your brother doing at this time yesterday? —He was reading a magazine ________ I was writing an email at home. A．after B．until C．while D．as soon as 【答案】C 【详解】句意：——昨天这个时候你和你的哥哥在做什么呢？——他正在家里看杂志，而我则在写电子邮件。 考查连词辨析。after在……之后； until直到……；while当……时候，和……同时；as soon as一……就……。根据“He was reading a magazine ... I was writing an email at home.”可知，是两个动作同时进行，所以用while引导时间状语从句。故选C。 8．Wash your hands ________ you have dinner. A．when B．before C．after 【答案】B 【详解】句意：你吃饭前要洗手。 考查从属连词辨析。when什么时候；before在……之前；after在……之后。根据“Wash your hands … you have dinner.”及常识可知，此处是指饭前要洗手，应用before引导时间状语从句。故选B。 9．John was taking photos ______ Mary was walking towards the shop. A．unless B．if C．while D．until 【答案】C 【详解】句意：当玛丽正朝商店走去时，约翰正在拍照。 考查从属连词辨析。unless除非；if如果；while当……时；until直到。根据“John was taking photos...Mary was walking towards the shop.”可知，空格前后的两个动作同时发生，用while引导时间状语从句。故选C。 10．Jimmy was very excited to tell his parents ______ he got the good news. A．even if B．so that C．as long as D．as soon as 【答案】D 【详解】句意：吉米一得到这个好消息就立刻非常兴奋地告诉了父母。 考查连词短语辨析。even if即使；so that以便；as long as只要；as soon as一……就。根据“Jimmy was very excited to tell his parents...he got the good news”可知，此处强调“一收到消息就立刻告诉父母”，故选D。 11．He didn’t leave the office ________ he finished all the work. A．until B．after C．before D．because 【答案】A 【详解】句意：他直到完成了所有的工作才离开办公室。 考查连词辨析。until直到；after在……之后；before在……之前；because因为。根据“He didn’t leave the office...he finished all the work”可知，此处表示“直到完成工作才离开”，not...until为固定搭配，意为“直到……才”，故选A。 12．There are fewer places for the animals to live in ________ people cut down so many trees. A．after B．before C．until D．and 【答案】A 【详解】句意：在人们砍伐了如此多的树木之后，可供动物居住的地方越来越少了。 考查连词辨析。after在……之后；before在……之前；until直到……为止；and和。分析题干可知，此处表示在人们砍伐了如此多的树木之后，可供动物居住的地方越来越少了，应用连词after引导此时间状语从句。故选A。 13．Remember to knock on the door ________ you go into the teachers’ office. A．after B．before C．but D．so 【答案】B 【详解】句意：你进入教师办公室之前，记得敲门 。 考查从属连词辨析。after在……之后；before在……之前；but但是；so所以。根据“Remember to knock...the teachers’ office.”可知，此处是谈及生活常识及逻辑，进入办公室前要敲门，before引导时间状语从句符合语境。故选B。 14．Wuxi has been popular ________ the Spring Festival Gala showed its beauty to the world. A．until B．if C．before D．since 【答案】D 【详解】句意：无锡在春节联欢晚会向世界展示其美丽后一直很受欢迎。 考查连词辨析。until直到；if如果；before在……之前；since自从。根据句意，主句用现在完成时（has been popular），表示“自春晚展示后持续受欢迎”，需用“since”引导时间状语从句，强调从过去某一时间点持续至今的状态。故选D。 15．Alice won second prize in the competition. ________ she stood on the stage with flowers in hands, her eyes were filled with tears. A．Until B．After C．While D．As 【答案】D 【详解】句意：Alice在比赛中获得了二等奖。当她手捧鲜花站在舞台上时，她的眼里充满了泪水。 考查连词辨析。Until直到；After在……之后；While当……时；As当……时。根据“she stood on the stage with flowers in hands, her eyes were filled with tears.”可知，此处表示当她站在舞台上时，眼里充满了泪水。主从句的两个动作同时发生，且stood是短暂性动词，用as引导时间状语从句。故选D。 16．The girl was doing her homework ________ her mother came back home. A．before B．after C．as soon as D．when 【答案】D 【详解】句意：当女孩的妈妈回家时，她正在做家庭作业。 考查时间状语从句。before在……之前；after在……之后；as soon as一……就……；when当……时候。根据“The girl was doing her homework...her mother came back home.”可知，“when”表示“当……时候”，强调两个动作同时发生。句中“when her mother came back home”说明“妈妈回家那一刻，女孩正在做作业”，符合“过去进行时+when+一般过去时”的常见结构，突出主句动作在从句动作发生时正在进行。故选D。 17．—What were you doing ________ the rainstorm came? —I was doing my homework. A．when B．while C．as D．until 【答案】A 【详解】句意：——暴风雨来的时候你在做什么？——我在做家庭作业。 考查连词辨析。when当……时，既可指时间点，也可指时间段，引导的从句中动词可以是延续性的，也可以是非延续性的；while当……时，强调主从句动作同时发生，引导的从句中动词通常是延续性的；as当……时，强调主从句动作同时进行，侧重伴随性；until直到……为止。根据“the rainstorm came”可知，came是非延续性动词，表示“暴风雨来”这一时间点，因此需用when引导从句。故选A。 18．Tom didn’t go to bed ________ his father came back last night. A．although B．so C．because D．until 【答案】D 【详解】句意：汤姆昨晚直到他父亲回来才上床睡觉。 考查时间状语从句。although尽管；so因此；because因为；until直到……。根据“Tom didn’t go to bed...his father came back last night.”可知，句子主干为“Tom didn’t go to bed”，否定结构“didn’t”与空格处需构成逻辑关联。“not...until...”固定搭配，意为“直到……才”，符合句意。故选D。 19．—Could you please help me take out the rubbish? —Sure. I will do it ________ I finish my book report. A．as soon as B．even though C．so that D．as far as 【答案】A 【详解】句意：——你能帮我把垃圾拿出去吗？——当然。我一完成我的读书报告就去做。 考查连词短语辨析。as soon as一……就……，引导时间状语从句，表示主句动作在从句动作之后立即发生；even though尽管，即使，引导让步状语从句；so that以便，为了，引导目的状语从句；as far as就……而言。根据“I will do it ... I finish my book report.”可知，这里表示写完报告后立即去倒垃圾，是时间上的先后关系，因此用as soon as引导时间状语从句。故选A。 20．James always shares some housework ________ his parents work hard. A．but B．or C．when D．before 【答案】C 【详解】句意：当父母努力工作时，詹姆斯总是分担一些家务。 考查连词词义辨析。but但是；or或者；when当……时候；before在……之前。根据“James always shares some housework…his parents work hard.”的语境可知，此处主从句动作同时发生，应用when引导时间状语从句。故选C。 21．________ education in a country develops, the country will develop, and strong education makes a strong nation. A．Although B．Before C．Unless D．When 【答案】D 【详解】句意：当一个国家的教育发展时，国家也会发展，强大的教育造就强大的国家。 考查连词辨析。Although尽管；Before在……之前；Unless除非；When当……时。根据“...education in a country develops, the country will develop, and strong education makes a strong nation.”可知，此处是when引导的时间状语从句，当教育发展时，国家就会发展，故选D。 22．It is necessary to ask your parents or teachers for some advice ________ you make the final decision. A．before B．after C．because 【答案】A 【详解】句意：在你做最后决定之前，向父母或老师征求一些建议是有必要的。 考查连词辨析。before在……之前，引导时间状语从句；after在……之后，引导时间状语从句；because因为，引导原因状语从句。根据“It is necessary to ask your parents or teachers for some advice ... you make the final decision.”可知，此处是时间状语从句，应该在做决定之前征询他人意见。故选A。 23．Time waits for no man, but some people will never realise the value of time ________ it’s gone. A．as long as B．as soon as C．until D．since 【答案】C 【详解】句意：时间不等人，但有些人永远不会意识到时间的价值，直到它消失。 考查连词辨析。as long as只要；as soon as一……就……；until直到；since因为。根据“Time waits for no man, but some people will never realise the value of time…it’s gone.”可知，此处表示“直到时间逝去才意识到时间的价值”，故选C。 24．Look! Harry is doing his homework ________ his sister is drawing. A．if B．while C．before D．till 【答案】B 【详解】句意：看！哈里正在做作业，而他妹妹正在画画。 考查连词辨析。if如果；while当……时候；before在……之前；till直到。根据“Look! Harry is doing his homework”和“his sister is drawing”可知，此处表示两个动作同时进行，while引导的时间状语从句，符合语境，故选B。 25．Mary says good night to her parents ________ she goes to bed every day. A．if B．until C．before D．unless 【答案】C 【详解】句意：Mary 每天睡觉前都会跟父母说晚安。 考查连词辨析。if如果；until直到；before在……之前；unless除非。根据“says good night...”可知，睡觉之前说晚安，用before引导时间状语从句，故选C。 26．My mother was watching TV ________ my father was reading a book at eight o’clock last night. A．while B．since C．before D．because 【答案】A 【详解】句意：昨晚八点我爸爸在看书时我妈妈在看电视。 考查从属连词辨析。while当……时；since自从；before在……之前；because因为。根据“My mother was watching TV...my father was reading a book at eight o’clock last night.”可知，此处表示两个动作同时发生，应该用while引导时间状语从句，故选A。 27．Many students didn’t realize the importance of study ________ they left school. A．until B．when C．after 【答案】A 【详解】句意：许多学生直到离开学校才意识到学习的重要性。 考查连词辨析。until直到；when当……时；after在……之后。根据“Many students didn’t realize the importance of study...they left school.”可知，此处应用固定搭配not...until...“直到……才……”，表示“学生直到离开学校才意识到学习的重要性”。故选A。 28．Many people do not realize the importance of health ________ they have fallen ill. A．until B．unless C．while D．since 【答案】A 【详解】句意：许多人直到生病了才意识到健康的重要性。 考查连词辨析。until直到……为止；unless除非；while当……时候；since自从。根据“Many people do not realize the importance of health”可推出直到生病才意识到健康重要，not ... until“直到……才”，引导时间状语从句。故选A。 29．You won’t know how important health is ________ you lose it. A．until B．if C．though D．after 【答案】A 【详解】句意：直到失去健康，你才知道健康有多重要。 考查连词辨析。until直到……为止；if如果；though尽管；after在……之后。根据“won’t”和“you lose it”可知，此处是not ... until“直到……才”，表示“直到失去健康，才知道健康的重要性”。故选A。 30．—May I play with my dog? —I am afraid not. You can’t play with it ________ you finish your homework A．when B．until C．after D．because 【答案】B 【详解】句意：——我可以跟我的狗玩儿吗？——恐怕不行。直到你完成作业，你才能跟它玩。 考查连词辨析。when当……时；until 直到……为止；after 在……之后；because因为。根据“I am afraid not. You can’t play with it… you finish your homework.”可知，此处是not...until“直到……才……，表示直到你完成作业，你才能跟它玩。 故选B。 31．I get into the habit of washing my hands ________ I get home. A．as soon as B．as far as C．as fast as 【答案】A 【详解】句意：我养成了一个习惯，一回到家就洗手。    考查连词短语辨析。as soon as一……就……；as far as就……而言；as fast as和……一样快。   根据“I get into the habit of washing my hands...I get home”可知，此处表示“一回到家就洗手”，强调动作的紧接性，故选A。 32．We met a nice and friendly neighbor ________ we lived in Shanghai. A．if B．although C．since D．when 【答案】D 【详解】句意：我们住在上海时遇到了一位友好的邻居。 考查连词。if如果；although尽管；since自从；when当……时。根据“We met a nice and friendly neighbor…we lived in Shanghai.”的语境可知，说明“遇到邻居”发生在 “住在上海”的期间，when符合。故选D。 33．Don’t listen to music ________ you are doing homework. A．if B．because C．as D．while 【答案】D 【详解】句意：不要在你做作业的时候听音乐。 考查连词。if如果；because因为；as由于；while当……时候。根据“Don’t listen to music…you are doing homework.”可知，这里表示“在做作业的同时不要听音乐”，用while强调时间上的同时性。故选D。 34．You will never truly understand your parents’ great love ________ you grow up. A．if B．until C．when 【答案】B 【详解】句意：直到你长大，你才会真正理解父母之爱有多伟大。 考查连词词义辨析。if是否，如果；until直到；when何时，当……时候。根据“You will never truly understand your parents’ great love…you grow up.”可知，直到长大才会理解父母的爱。“直到”符合语境。故选B。 35．Don’t worry about me. I will send you a message ________ I get to Zigong. A．as soon as B．although C．in order to 【答案】A 【详解】句意：别担心我。我一到了自贡，就给你发消息。 考查时间状语从句。as soon as一……就；although尽管；in order to为了。根据“I will send you a message…I get to Zigong.”可知此处是指一到自贡，就给对方发消息，此处为as soon as引导的时间状语从句。故选A。 36．Many people didn’t know the importance of protecting wild animals ________ some of them died out. A．when B．after C．until D．so 【答案】C 【详解】句意：很多人直到一些野生动物灭绝了才知道保护它们的重要性。 考查连词辨析。when当……时；after在……之后；until直到；so所以。根据“didn’t know”和“some of them died out”可知此处表达的是直到一些野生动物灭绝了，人们才知道保护它们的重要性，即not…until…结构，表示“直到……才……”。故选C。 37．My uncle has worked in the TV station ________ he graduated from university. A．because B．although C．if D．since 【答案】D 【详解】句意：我的叔叔自从大学毕业以来，就一直在电视台工作。 考查连词词义辨析。because因为，引导原因状语从句；although尽管，引导让步状语从句；if如果，引导条件状语从句；since自从，引导时间状语从句 。根据句中“has worked”为现在完成时，以及“he graduated from university”为一般过去时可知，从大学毕业这个时间点开始一直持续到现在的动作，存在时间上的先后关系，since符合语境，且since是现在完成时的标志词。故选D。 38．It has been more than forty years ________ the club was set up. A．since B．although C．unless D．if 【答案】A 【详解】句意：从俱乐部成立到现在已经有四十多年了。 考查连词辨析。since自从；although尽管、虽然；unless除非；if如果。根据“It has been more than forty years...the club was set up.”可知，此处表示自从俱乐部成立，到现在已经有四十多年了。故选A。 39．I’m sorry but nothing can be done ________ the manager returns. A．when B．as soon as C．until D．because 【答案】C 【详解】句意：很抱歉，但在经理回来之前什么也做不了。 考查连词辨析。when当……时；as soon as一……就；until直到……才；because因为。根据“nothing can be done”可知，此处指“在经理回来之前什么也做不了”，强调动作的截止时间，故选C。 40．Don’t get off the bus until it _________. A．will stop B．stops C．shall stop D．is stopped 【答案】B 【详解】句意：直到公交车停下来才可以下车。 考查时间状语从句的时态。根据“until it...”可知until引导时间状语从句，而由“Don’t get off the bus”可知主句为祈使句，所以这时的时间状语从句应用一般现在时，遵循“主祈从现”的原则，且由语境可知停车是车子的正常行驶状态，用主动语态表达更合适，故选B。 二、完成句子(本大题共10小题，每小题2分，共20分) 41．在他的空闲时间，他通常读科学书。 He usually reads . 【答案】science books/a science book when he’s free/science books/a science book in his free/spare time 【详解】对照中英文提示可知，空缺部分是“科学书”和“在他的空闲时间”，science book“科学书”，此处可以用单数或复数，“在他的空闲时间”的英文表达为in his spare/free time，此处也可以用when引导时间状语从句，表示为when he is free，故填science books/a science book when he’s free/science books/a science book in his free/spare time。 42．当杰克遇到困难的时候，他向我求助。 When Jack meets some difficulties, he me . 【答案】 turns to for help 【详解】对比中英文可知，空处缺少“向……求助”；结合英文题干和汉语提示可知，此处考查turn to sb. for help“向某人寻求帮助”，动词短语；根据“When Jack meets some difficulties,”可知，此处是描述经常发生的动作或习惯，从句和主语均用一般现在时，且主语“he”为第三人称单数，谓语动词turn应用三单形式turns故。故填turns；to；for；help。 43．你们做作业时，请不要闲聊。 Please don’t chat you’re your homework. 【答案】 while doing 【详解】结合中文可知此句是“while”引导的时间状语从句。根据do one’ homework“做作业”可知，do“做”，空前是be动词，表示现在进行时态，因此用doing。故填while；doing。 44．随着白天变短，气温下降，不久雪季来临。 , soon the snowy season will begin. 【答案】As the days get shorter and the temperature drops 【详解】对比中英文可知，空处缺少“随着白天变短，气温下降”；结合英文题干和汉语提示可知，此处考查as引导的时间状语从句，符合“主将从现”原则；as“随着”，引导状语从句，位于句首；the days get shorter“白天变短”，在秋季和冬季，白天逐渐变短，暗含比较级含义；the temperature drops“气温下降”，其中drop“下降”，动词；两个句子为并列关系，应用and连接。故填 As the days get shorter and the temperature drops。 45．我们自从参加唱歌比赛后就成了好朋友。 We have been good friends since we the singing competition. 【答案】 joined in 【详解】根据中英文对照分析，此处是join in“参加”，since引导的时间状语从句，从句时态用一般过去时，因此谓语动词用过去式joined。故填joined；in。 46．汤姆花了很长时间才从树上下来。 he came down the tree. 【答案】It took Tom a long time before 【详解】“花某人时间”为it takes sb. time，结合语境，该句为一般过去时，谓语动词用过去式；“很长时间”为a long time；该句可理解为“从树上下来之前花了很长时间”，“在……之前”为before，故填It took Tom a long time before。 47．听说了那场事故，孩子们都难过得说不出来话。 The children were anything after they the accident. 【答案】 too sad to say heard of/heard about 【详解】根据语境可知，句子为after引导的时间状语从句，be动词were后需接too+adj+to do表示“太……而不能……”，sad“难过的”，形容词，不定式to后接动词原形，say“说，表达”，动词；主语they后需接动词，因主句时态为一般过去时，遵循主过从过原则，从句时态用一般过去时，动词用过去式，hear of表示“听说”与hear about表示“听到关于……的消息”均与语境相符，heard为动词hear的过去式。故填too sad to say；heard of/heard about。 48．如果有一辆车开过来，直到真的安全了，你才会过马路。 If a car comes, you the road until it is really safe. 【答案】 won’t cross 【详解】根据汉语提示可知，空处需用“not...until”结构来表达“直到安全才过马路”，not...until意为“直到……才”，cross意为“穿过”，won’t cross...until表示“直到……才过马路”。故填won’t；cross。 49．许多孩子一到医院门口就会感到紧张。 Many children will feel nervous they go near the gate of the hospital. 【答案】 as soon as 【详解】根据中英文对照，空格处缺“一……就……”，“as soon as”是固定短语，用来引导时间状语从句，强调两个动作紧接着发生。故填as；soon；as。 50．直到失去健康你才会意识到它的重要性。 You realize health you lose it. 【答案】 won’t the importance of until 【详解】根据题干缺少的翻译，not... until...“直到……才……”；the importance of health“健康的重要性”。此句是until引导的时间状语从句，主句用一般将来时。故填won’t；the；importance；of；until。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $$