资源简介 / 让学习更有效 新课备课备考 | 英语学科/ 让学习更有效 新课备课备考 | 英语学科2025年外研版九年级英语上册精讲精练Module 4 Home alone核心语法:原因状语从句一、核心概念原因状语从句 用来表示主句中动作或状态发生的原因或理由,回答“为什么”的问题。引导词:because, since, as, now that 等二、常用引导词辨析引导词 语气强度 位置 用法特点 例句because ★★★★★(最强) 句首或句末 直接说明原因,回答why提问 I stayed home because it was raining.since ★★★★☆(较强) 句首 表示显而易见或已知的原因 Since you are busy, I'll come later.as ★★★☆☆(较弱) 句首 原因较明显,语气较随意 As it's getting late, we should go.now that ★★★★☆(较强) 句首 表示“既然,由于”(现在已存在的状况) Now that you are here, let's begin.三、基本句型结构主句 + because + 从句He didn't come to school because he was ill.Since/As/Now that + 从句,主句Since everyone is here, let's start the meeting.As you insist, I'll change my plan.Now that you understand, we can move on.四、注意事项1、because 与 so 不能连用 Because it was raining, so we stayed home. Because it was raining, we stayed home. It was raining, so we stayed home.2、语气强弱的选择重要原因用 because众所周知的原因用 since 或 as现在的状况用 now that3、标点符号的使用从句在前时,用逗号与主句隔开从句在后时,一般不用逗号五、易错点分析1、引导词混淆 Because everyone is here, let's begin.(语气过强) Since everyone is here, let's begin.2、中文思维影响 Because he is tired, so he wants to rest. Because he is tired, he wants to rest.3、now that 的误用 Now that he was ill, he didn't come.(过去时态不适用) Now that he is ill, he can't come.六、记忆口诀“原因从句表原因,because since as 常见。because 语气最强烈,回答why 它来解。since as 语气轻,已知原因用它引。now that 表既然,现在状况是前提。切记because so 不同现,时态一致要记全。”1.Mary thinks geography is really difficult, ________ she doesn’t like it.A.but B.because C.so D.and2.-- Why were you late for school this morning -- I was ill, and had to see a doctor first.A.As B.Since C.Because D.For3.He likes science ________ it’s very interesting.A.and B.so C.because D.but4.We are very proud(自豪的)________ China is becoming stronger and stronger.A.or B.because C.so D.though5.The firefighters have to eat breakfast very fast ________ they don’t have much time.A.so B.and C.because D.but6.He failed the exam __________ he was too careless.A.because B.but C.so that D.so7.I don’t like the T-shirt _______ it’s too big for me.A.so B.but C.when D.because8.We are making a big cake, _______ it’s Dad’s birthday today.A.because B.or C.so D.but9.—Why do you like science —_________ I think it’s interesting.A.And B.So C.But D.Because10.Music is my favorite subject____ it is interesting.A.but B.because C.so D.or11.I don’t like winter ________ it’s too cold.A.and B.but C.or D.because12.I don’t like fast food ________ it is not healthy.A.but B.so C.because13.Her favorite day is Saturday ________ she has music.A.why B.becauseC.but D.and14.P.E. is my favorite subject ________ it is interesting.A.but B.because C.and D.or15.I like Tu Youyou ________ she is a great scientist.A.or B.because C.but D.so16.________ he is very busy, ________ he can’t come to the party.A.So; because B.Because; so C.So; / D.Because; /17. it rained, the football match was put off.A.Because; so B.Because of; / C.Because; / D.As; so18.I couldn't sleep well last night _____________ there was so much noise outside.A.so B.but C.because D.if19.—Why do you like this book — ________ it’s great fun.A.So B.Or C.And D.Because20.My brother doesn’t like math __________ he thinks it is boring.A.so B.and C.but D.because21.—Why do you like koalas —________ they are very lovely.A.Because B.So C.But D.And22.More and more children are interested in blind boxes ________ they wonder what is inside.A.so B.because C.unless D.though23.Alice likes art________it’s very interesting.A.so B.because C.and D.but24.We should care more about our health ________ good health is the first step towards success.A.so B.because C.but D.if25.The two companies decided to work together ________ they had common interest(利益).A.so B.or C.because D.unless26.I like my new school ________ my teachers and classmates are very friendly.A.before B.because C.so D.until27.Goldilocks was very hungry _________ she didn’t eat anything for two days.A.because B.so C.but D.or28.It's summer in the picture _________ many students are wearing the summer uniforms.A.because B.or C.if D.and29.I like goldfish___________they are very beautiful.A.after B.so C.but D.because30.My mother doesn’t eat ice cream _________ she doesn’t want to be fat.A.because B.so C.or D.but31.The girl would like to be a teacher ________ she loves children.A.when B.although C.because D.but32. History is my favourite subject ________ it’s very interesting.A.so B.because C.but33.—Why do you hope to visit the West Lake some day —________ it is a beautiful lake in Hangzhou.A.Until B.If C.Because D.Though34.Many people like pandas ________ they are cute.A.but B.or C.so D.because35.I like music class ________ it’s relaxing(令人放松的).A.because of B.because C./ D.but36.Lingling joins the music club ________ she likes singing.A.so B.or C.because D.but37.________ my grandfather does sports every day, ________ he’s very healthy.A.Because; so B.Though; / C.Because; / D.Because; though38.My Chinese teacher is very knowledgeable ________ she reads lots of books.A.so B.because C.although39.________ I’m late for class again, ________ my teacher is very angry.A.Because; / B.So; / C.Because; so D./; but40.I love my family, ________ they are very kind to me.A.because B.so C.but D.or41.We would like to buy electric cars ________ they produce less air pollution.A.because B.so C.though D.but42.Tony didn’t eat any food yesterday ________ he had toothache.A.if B.when C.though D.because43.We didn’t enjoy the music _______ there was a sudden rain.A.if B.because C.that D.although44.It’s easy for me to get up early ________ I always go to bed early.A.and B.but C.because D.so45.My brother doesn’t like maths ________ it’s boring to him.A.because B.or C.and D.but46.He had to go home ________ he is in poor health.A.as a result B.because C.so D.because of47.—Why do you like dogs — ______ they are friendly.A.So B.Because C.But D.And48.I want to go to Yunbei Park ______ there are many beautiful flowers there.A.or B.but C.because D.so49.I like music ______ it’s relaxing.A./ B.but C.or D.because50.-What shall we do now -_______ it’s raining hard, let’s stay at home.A.So B.Since C.Though D.If51.His car ________ the bad weather on his way home, so he couldn’t come back for dinner.A.broke down because B.broke down because ofC.was broken down because of D.was broken down because52.--Is the motor way(高速公路) open today --I'm afraid not. ___________ it is so foggy, it must be closed.A.Because of B.As a result of C.If D.As53._______ water covers most of the Earth, land is very precious (宝贵的).A.As B.For C.Until D.Since54.—Why didn't you come back to the meeting?—________I didn't think the meeting would be interesting.A.As B.Since C.For D.Because55.The children don’t like snakes ________ they are scary.A.and B.because C.but D.or56._______ the weather is so bad, I decide to stay at home and watch TV.A.And B.Until C.Since D.Unless57._________ monkeys are cute, _________ Tom likes them.A.Because; so B.Because; / C.So; /58.It’s difficult for us to say goodbye _______ we have so many happy days to remember(记住).A.so B.because C.but D.or59.______it is often cold in the mountains, you need to wear warm clothes.A.Though B.Unless C.As D.Until60.—Tom isn’t feeling very well.—He seems to have a cold ________ the weather changes suddenly.A.before B.so C.because D.though61.She felt sad ________ her grandmother died several days ago.A.although B.because C.unless D.if62.________ you know English is important, you should learn it well.A.Since B.OrC.Because of D.But63.It’s hard for us to say goodbye ________ we have so many happy days to remember.A.so B.because C.although D.until64.—Is Tom at school today —No, he’s at home ________ he has a bad cold.A.if B.until C.because D.because of65.—Why is she going to England — she wants to see Big Ben herself.A.Because B.But C.Then D.So66.The child felt happy ________he could stay at home with his parents.A.as B.because of C.because D.but67.I didn’t buy anything in the gift shop ________ the things in it were really expensive.A.and B.but C.so D.because68.They are going to Fujian they think it's a beautiful place.A.so B.because C.then D.but69.The teacher is very happy _________ her students all have a good time in her classes.A.because B.or C.but D.before70.—The boy didn’t come to school ________ the bad weather.—No, ________ he was ill.A.because of, because B.because, because of C.because, because71.I didn’t accept his help ________ I wanted to try it myself.A.because B.though C.until D.unless72.The two companies decided to work together ______ they had common interest.A.because B.unless C.but D.or73.I don’t like history it’s boring.A.And B.SoC.But D.Because74.He was late for school ______ he helped an old woman go home on his way to school.A.so that B.becauseC.yet D.but75.—Why do you like English 一_________I think it’s very interesting.A.So B.And C.But D.Because76.John has decided not to eat too much ________ he always has a stomachache.A.if B.because C.when D.until77.I like spring best ________ it's a good season for flying kites.A.why B.because C.that D.when78.________ your father recovers, you no longer have anything to worry about.A.After B.Before C.Since D.Until79.Tom felt unhappy, ________ he didn’t think his classmates liked him.A.though B.so C.unless D.because80.I like music_________ it’s relaxing.A.and B.but C.so D.because81.I like reading books in the library ________ it’s very quiet.A.because B.but C.or D.and82.I don’t like math _______it’s difficult for me.A.but B.andC.or D.because83. his right hand was hurt, he wrote slowly.A.Because: soB.Because:/C.Although; butD.Although; /84.I can’t read the book__________ there are too many new words in it.A.because B.so C.but D.and85.I don't like the TV series(电视连续剧) ________ it's boring.A.but B.and C.because D.so86.I can’t play with you ______ I’m very busy now.A.but B.because C.and D.so87.You should keep your hands clean __________ it helps you stay healthy.A.when B.although C.because D.but88.________ there is no bus service there, we have to walk.A.When B.If C.Since D.So89.— Could you show the way to the station to me may be five minutes' walk from here — No problem. But it's silly to take a taxi you can easily walk to the station.A./; if B.which; since C.that; when D.who; if90.Now most families have only one child _____ our country’s one-child policy.A.so B.because C.because for D.because of91.— Do you think I should wear an orange shirt today — Yes. _________ orange can bring you good luck, it is good for your interview.A.Though B.As C.But D.While92.________ I’m late again, ________ the teacher is very angry.A.Because; / B.So; / C.Because; so D./; but93.—I like rain ________ it makes me feel cool and relaxed.—So do I.A.or B.so C.but D.because94.We did not go to Central Park last Sunday ________ the weather was too bad.A.because of B.so C.if D.because95.Two mothers and two daughters had lunch at a restaurant. They each spent 70 yuan, but they paid only 210 yuan in all. Why A.Because there is only one mother and one daughter.B.Because there is one grandmother,one mother and one daughter.C.Because there are two mothers and one husband.D.Because there are three mothers and one daughter.96.I don’t like English it’s difficult.A.why B.but C.and D.because97.Jane’s birthday is in winter,but she was born in summer. Why Because________.A.she was born in Australia and lives in LondonB.she was born in the west and lives in the eastC.She is always movingD.she was born in China and lives in the US98._______you don’t like the bike,you should not buy it.A.With B.But C.So D.Since/ 让学习更有效 新课备课备考 | 英语学科/ 让学习更有效 新课备课备考 | 英语学科21世纪教育网(www.21cnjy.com)21世纪教育网(www.21cnjy.com)参考答案及试题解析1.C【解析】句意:玛丽认为地理太难了,因此她不喜欢地理。考查连词用法。but但是,表转折;because因为,表原因;so因此,表因果;and和,表并列。分析前后两句关系可知,此处表结果。故选C。2.C【解析】句意:——你今天早上为什么上学迟到?——因为我病了,必须先去看医生。本题考查连词的辨析。A. As 由于;B. Since 自从;C. Because 因为;D. For 因为,由于。因为前面提问的疑问代词是“why”,所以用because来作答,解释迟到的原因,故选C。3.C【解析】句意:他喜欢科学因为它很有趣。考查连词辨析。and和;so因此;because因为;but但是。“it’s very interesting”是“He likes science”的原因,用because引导原因状语从句,故选C。4.B【解析】句意:我们感到很自豪,因为中国正变得越来越强大。考查连词辨析。or或者;because因为;so因此;though尽管。 “ China is becoming stronger and stronger”是我们自豪的原因,用because引导原因状语从句,故选B。5.C【解析】句意:消防员们必须很快地吃早饭,因为他们没有太多时间。考查连词辨析。so所以;and和;because因为;but但是。根据“The firefighters have to eat breakfast very fast…they don’t have much time.”可知,前后是因果关系,后句“他们没有太多时间”是前句“消防员们必须很快地吃早饭”的原因,所以用because引导原因状语从句。故选C。6.A【解析】试题分析:A. Because因为;B. but 但是;C. so that 目的是;D. So因此;句意:---他考试失败了,是因为他太粗心了。结合句意,故选A考点:考查连词的辨析。7.D【解析】句意:我不喜欢这件T恤,因为对我来说太大了。考查连词辨析。so所以;but但是;when当……时;because因为。“it’s too big for me”是“I don’t like the T-shirt”的原因,用because引导原因状语从句。故选D。8.A【解析】句意:我们正在做一个大蛋糕,因为今天是爸爸的生日。考查连词辨析。because因为;or或者;so所以;but但是。“it’s Dad’s birthday today”是“We are making a big cake”的原因,空格处用because引导原因状语从句。故选A。9.D【解析】句意:——你为什么喜欢科学?——因为我认为它很有趣。考查连词辨析。and和;so所以;but但是;because因为。回答why引导的特殊疑问句要使用连词because。故选D。10.B【解析】句意:音乐是我最喜欢的科目因为它很有趣。考查连词的用法。A. but意为“但是”,表转折。B. because意为“因为”,表原因。 C. so意为“所以”,表结果。D. or意为“或者”,表选择。题干后半句表原因,可用because引导。故选B。【点睛】在英语中,because和so不连用,though和but不连用。11.D【解析】句意:我不喜欢冬天,因为太冷了。考查连词辨析。and和,又;but但是;or或者;because因为。根据语境可知,“it’s too cold”是不喜欢冬天的原因,故选D。12.C【解析】句意:我不喜欢快餐,因为它不健康。考查连词辨析。but但是;so所以;because因为。根据“I don’t like fast food...it is not healthy.”可知,因为快餐不健康,所以不喜欢快餐。故选C。13.B【解析】句意:她最喜欢的一天是星期六,因为她有音乐课。考查连词辨析。why为什么;because因为;but但是;and和,而且。“she has music”是“Her favorite day is Saturday”的原因,用because引导原因状语从句,故选B。14.B【解析】句意:体育是我最喜欢的科目,因为它很有趣。考查连词辨析。but但是;because因为;and和,又;or否则,要不。根据“it is interesting”可知,此处是表示原因,用because连接。故选B。15.B【解析】句意:我喜欢屠呦呦因为她是一个伟大的科学家。考查连词。A. or(“或者”,表选择);B. because(“因为”,原因状语从句);C. but(“但是”,表转折);D. so(“因此”,表因果);“she is a great scientist.她是一位伟大的科学家”是“I like Tu Youyou我喜欢屠呦呦”的原因,故选B。16.D【解析】句意:因为他很忙,所以他不能来参加聚会。考查连词辨析。so因此,表示结果;because因为,表示原因。分析句子可知,前半句he is very busy是后半句he can’t come to the party的原因,所以第一空应用because引导原因状语从句;so用于引导结果状语从句,但是不与because同时使用,且结果状语从句中通常不用连词。所以第二空是空白。故选D。17.C【解析】句意:因为下雨,足球比赛被推迟了。本题考查从属连词。because是连词,其后接原因状语从句或回答以why开头的问句;而because of是复合介词,其后接名词、代词或动名词,或者what引导的名词性从句。分析句子,结合选项,推测意思是因为下雨,足球比赛被推迟了,前后是一种因果关系,引导一个句子,且because不能同时与so连用。故选C。18.C【解析】句意:昨晚我没有睡好,因为外面噪音太大。考查连词。A. so 所以;B. but 但是;C. because 因为;D. if 所以。根据译文两句为因果关系,故选C。19.D【解析】句意:——你为什么喜欢这本书?——因为它很有趣。考查连词辨析。So因此,表示结果;Or或者,表示选择;And和,表示并列;Because因为,表示原因。根据问句“Why do you like this book ”可知,此处是在询问喜欢这本书的原因,所以答句应用because。故选D。20.D【解析】句意:我弟弟不喜欢数学,因为他认为数学很无聊。考查连词,A. so所以;B. and和;C. but但是;D. because因为,本题空格前陈述事实,空格后表明原因,所以用连词because(因为)。故选D。21.A【解析】句意:——你为什么喜欢考拉?——因为它们很可爱。考查连词辨析。Because因为;So因此;But但是;And和。根据“Why do you like koalas ”可知,回答why引导的问句,用because,故选A。22.B【解析】句意:越来越多的孩子对盲盒感兴趣,因为他们想知道盒子里装的是什么。考查连词辨析。so所以;because因为;unless除非;though尽管。“More and more children are interested in blind boxes”与“they wonder what is inside”是因果关系,后是因,用because引导原因状语从句,故选B。23.B【解析】爱丽丝喜欢美术因为它非常有趣。A. so所以,引导结果状语从句; B. because因为,引导原因状语从句; C. and 并且,引导并列句;D. but但是,引导转折状语从句。根据it’s very interesting表示的是爱丽丝喜欢美术的原因,故选B。24.B【解析】句意:我们应该更加关心我们的健康,因为健康是走向成功的第一步。考查连词辨析。so所以;because因为;but但是;if如果。根据“We should care more about our health”及“good health is the first step towards success”,可知,我们要关心健康,因为健康是走向成功的第一步,用because引导原因状语从句,故选B。25.C【解析】句意:这两家公司决定合作,因为他们有共同的利益。考查连词辨析。so因此;or或者;because因为;unless除非。根据“The two companies decided to work together … they had common interest”可知,空格后是解释决定合作的原因,用because引导原因状语从句,故选C。26.B【解析】句意:我喜欢我的新学校,因为我的老师们和同学们都很友好。考查连词词义辨析。before在……以前;because因为;so因此;until直到。根据空前的“I like my new school”和空后的“my teachers and classmates are very friendly”的句意可知,此处表示因果关系,前果后因。故选B。27.A【解析】句意:金发姑娘很饿因为她两天没吃任何东西了。考查连词辨析。because因为;so因此;but但是;or或者。根据“she didn’t eat anything for two days.”可知,空后解释了她很饿的原因,应该用because引导原因状语从句。故选A。28.A【解析】句意:图片中是夏天,因为许多学生都穿着夏天的校服。考查连词。A. because因为;B. or或者;C. if如果;D. and和;根据穿着夏天的校服,和图中是夏天有因果关系,所以用because,故选A。29.D【解析】句意:我喜欢金鱼,因为他们很漂亮。根据after在---以后;so因此; but但是;because 因为;根据“they are very beautiful”是“I like goldfish”的原因,故用because引导原因状语从句。故选D。30.A【解析】句意:我妈妈不吃冰淇淋,因为她不想胖。考查连词辨析。because因为;so所以;or或者;but但是。分析句子,可知“she doesn’t want to be fat”是“My mother doesn’t eat ice cream”的原因,空处应填because“因为”。故选A。31.C【解析】句意:这个女孩想成为一名教师,因为她爱孩子。考查从属连词。A. when当……时;B. although虽然;C. because因为;D. but但是。根据前后两句之间的逻辑,可知后一句表示原因,应该用because引导原因状语从句,故选C。32.B【解析】句意:历史是我最喜欢的学科,因为它是非常有趣的。考查连词辨析。so所以;because因为;but但是。根据“it’s very interesting”可知它是有趣是我最喜欢历史的原因,用because引导状语从句。故选B。33.C【解析】句意:——你为什么希望有一天去游览西湖?——因为它是杭州的一个美丽的湖。考查连词辨析。Until直到;If如果;Because因为;Though虽然。前句Why提问原因,此处应用Because来回答。故选C。34.D【解析】句意:许多人们喜欢熊猫是因为它们很可爱。考查连词辨析。but但是;or或者;so所以;because因为。下文“they are cute”是许多人喜欢熊猫的原因,应用because来连接句子。故选D。35.B【解析】句意:我喜欢音乐课,因为它令人放松。考查连词。because of因为,后加名词或代词;because因为,后加从句;but但是。根据“I like music class…it’s relaxing”可知前后两个句子是因果关系,前果后因,用because引导原因状语从句。故选B。36.C【解析】句意:玲玲加入音乐俱乐部是因为她喜欢唱歌。考查连词辨析。so所以;or或者;because因为;but但是。后句是前句的原因,用because连接。故选C。37.C【解析】句意:因为我的祖父每天都做运动,所以他很健康。考查连词辨析。Though虽然;Because因为;so所以。在英语习惯上,because与so不连用,because和though不连用,排除选项AD;根据“my grandfather does sports every day,...he’s very healthy.”可知,每天锻炼是祖父身体健康的原因,所以前后句是因果关系,用Because引导原因状语从句,故选C。38.B【解析】句意:我们语文老师知识渊博,因为她读了许多书。考查连词辨析。so所以;because因为,引导原因状语从句;although尽管,引导让步状语从句。根据“My Chinese teacher is very knowledgeable...she reads lots of books.”可知,此处存在因果关系,前果后因,故应用because引导原因状语从句。故选B。39.A【解析】句意:因为我上课又迟到了,所以我老师非常生气。考查连词。Because因为;so所以;but但是。根据“…I’m late for class again, …my teacher is very angry”可知前句是原因,后句是结果,而且because和so不能连用。故选A。40.A【解析】句意:我爱我的家人,因为他们对我很好。考查连词辨析。because因为;so所以;but但是;or或者。根据“I love my family, ... they are very kind to me.”可知,空前后句是前果后因的关系,用because引导原因状语从句。故选A。41.A【解析】句意:我们想买电动汽车,因为它们产生的空气污染更少。考查连词辨析。because因为;so因此;though尽管;but但是。上文“想买电动汽车”和下文“电动汽车产生较少空气污染”之间是因果关系,前者是结果,后者表原因,故用because连接。故选A。42.D【解析】句意:托尼昨天没吃东西,因为他牙痛。考查连词。if 如果;when当……时;though尽管;because因为;分析句子“Tony didn’t eat any food yesterday ________ he had toothache”托尼昨天没吃东西,____他牙痛,所以此处是因果关系,用“because”,故选D。43.B【解析】句意:我们没有欣赏音乐,因为突然下雨了。考查连词辨析、because原因状语从句。if 如 果,条件状语从句;because因为,原因状语从句;that定语从句从或宾语句的引导词; although“虽然、即使”,引导让步状语从句;“我们没有欣赏音乐”的原因是“突然下雨了”,从句表示主句动作发生的原因,故选B。44.C【解析】句意:对我来说早起很容易,因为我总是早早上床睡觉。考查连词辨析。and并且;but但是;because因为;so因此。根据“I always go to bed early”可知,空处解释了自己能早起的原因,应该用because引导原因状语从句。故选C。45.A【解析】句意:我哥哥不喜欢数学,因为对他来说很枯燥。考查连词辨析。because因为;or或者;and和;but但是。分析前后句关系可知“it’s boring to him”是“My brother doesn’t like maths”的原因,应用“because”。故选A。46.B【解析】句意:他不得不回家,因为他身体不好。考查原因状语从句。as a result因此,介词短语;because因为,引导原因状语从句;so所以;because of因为,后接名词、 代词、 动名词等。 空后“he is in poor health”是空前“他不得不回家”的原因,所以此处应用because引导原因状语从句。故选B。47.B【解析】句意:——你为什么喜欢狗?——因为它们很友好。考查连词。So所以;Because因为;But但是;And和、并且。以“Why”开头的特殊疑问句,要用“Because”引导的句子来回答,表示原因。故选B。48.C【解析】句意:我想去云贝公园,因为那里有许多美丽的花。考查连词。or或者;but但是;because因为;so因此。根据“there are many beautiful flowers there.”可知空格前后表达的是因果关系,属于“前果后因”结构,应用because引导原因状语从句,故选C。49.D【分析】句意:我喜欢音乐,因为它令人放松。【解析】but但是,表示转折关系;or或者,表示选择;because因为,表示原因。结合句意,此处表示喜欢音乐的原因是它令人放松,故选D。50.B【解析】句意:——我们现在该做什么呢?——鉴于正在下雨,让我们待在家里吧。考查连词辨析。So因此;Since既然;Though尽管;If如果。根据“... it’s raining hard, let’s stay at home.”可知,此处因为在下雨,所以我们待在家里,用since表示原因。故选B。51.B【解析】句意:在他回家的路上,他的车由于恶劣的天气出故障了,所以他不能回来吃晚餐了。考查语态及连词。主语是His car,break down“出故障”,应该使用主动语态,可以排除选项C和D,“the bad weather”是名词短语,要用because of连接,because后加句子。故选B。52.D【解析】句意:——今天高速公路开着吗?——恐怕没有。因为雾如此大,它必须关上。Because of因为,是介词短语,后面接名词、代词或动名词;as a result of由于,是介词短语,后面接名词、代词或动名词;if如果,是连词;as因为,是连词。此处接句子,表示原因,故用连词as。故选D。53.A【解析】句意:由于水覆盖了大部分地球,那么,陆地就十分珍贵了。考查连词辨析。As由于,指众所周知的原因;For因为,但语气很弱,常指顺便提及的说明,不能在句首;Until直到……才;since既然,表示原因是已知的客观事实,语气略强于as。根据“…water covers most of the Earth”可知,此处是比较明显的原因,应用as引导原因状语从句。故选A。54.D【解析】句意:——你为什么不回来开会?——因为我不认为会议会有意思。考查从属连词。because引导原因状语从句语气最强,表示直接原因,在回答由why提出的问题时,必须用because回答。故选D。【点睛】because/since/as/for这四个词都是表示原因或理由的连接词,但是as,because,since是从属连词,引导原因状语从句,for是并列连词,所引导的不是原因状语从句,而是表示理由的对等句子,是对前面所讲内容补充和说明。在语气上由强至弱依次为because→since→as→for。(1)because表示直接的原因或理由,在回答why的提问时,必须用because作答。(2)as与since引导的从句多置于句首,不过as表示十分明显的原因,只说明一般的因果关系,可译为“因为、由于”;而since则表示稍加分析、对方已知的原因,一般可译为“既然”。(3)for引导的分句一般放在句末,其前用逗号,它所叙述的理由是间接的,即推测性理由,或是对前面叙述的事实或看法的补充说明。55.B【解析】句意:孩子们不喜欢蛇,因为它们是可怕的。考查连词辨析。and和,表顺承关系;because因为,引导原因状语从句;but但是,表转折;or否则,表否定的条件。根据句意可知蛇很可怕是孩子们不喜欢它们的原因,前果后因,用because引导原因状语从句。故选B。56.C【解析】句意:既然天气这么坏,我决定待在家里看电视。考查连词辨析。And和;Until直到;Since既然;Unless除非。“the weather is so bad”是“I decide to stay at home and watch TV”的原因,用since引导原因状语从句,故选C。57.B【解析】句意:因为猴子很可爱,所以汤姆喜欢它们。考查连词辨析。because因为,为从属连词,引导原因状语从句;so所以,为并列连词,引导并列句。because与so两种不同类型的连词不能连用,且结合语境可知,此处指“汤姆喜欢猴子的原因是猴子很可爱”,应用because引导原因状语从句。故选B。58.B【解析】句意:我们很难说再见,因为我们有那么多快乐的日子要记住。考查连词辨析。so所以;because因为;but但是;or或者。根据“It’s difficult for us to say goodbye... we have so many happy days to remember”可知,句子前后是因果关系,前果后因,用because引导原因状语从句。故选B。59.C【解析】句意:由于在山里常常很冷,你需要穿暖和的衣服。A. Though虽然;B. Unless除非;C. As由于;D. Until直到…时。根据题干______it is often cold in the mountains, you need to wear warm clothes.可知此处用as来引导原因状语从句,即“由于在山里常常很冷,你需要穿暖和的衣服”,故选C。60.C【解析】句意:——汤姆感觉不太好。——他好像感冒了,因为天气突然变了。考查连词辨析。before在……之前;so因此;because因为;though虽然。根据“He seems to have a cold…the weather changes suddenly.”可知是指他好像感冒了,因为天气突然变了,应该用because引导原因状语从句。故选C。61.B【解析】句意:她感到很伤心,因为她的祖母几天前去世了。考查连词辨析。although虽然;because因为;unless除非;if如果。“her grandmother died”是“She felt sad”的原因,用because引导原因状语从句,故选B。62.A【解析】句意:既然你知道英语很重要,你就应该把它学好。考查连词辨析。Since既然;Or或者;Because of因为;But但是。根据“you know English is important”可知,此处表示既然你知道英语非常重要,应用since引导原因状语从句,表示已知的、显然的理由。故选A。63.B【解析】句意:我们很难说再见,因为我们有很多快乐的日子要记住。考查连词辨析。so所以;because因为;although虽然;until直到。后句“we have so many happy days to remember”是前句“It’s hard for us to say goodbye”的原因,用because引导原因状语从句。故选B。64.C【解析】句意:——汤姆今天在学校吗?——不,他在家,因为他得了重感冒。考查连词辨析。if如果;until直到;because因为;because of因为(后接名词)。根据“he’s at home...he has a bad cold”可知,前后为因果关系,用because引导原因状语从句。故选C。65.A【解析】试题分析:句意:——她为什么要去英国?——因为她想自己去看大本钟。Because因为;But但是;Then 然后;So所以;根据Why is she going to England 可知此处回答原因,故用连词because,故选A。考点:考查连词的用法。66.C【解析】句意:这个孩子感到开心因为他能和父母待在家里。考查连词。as因为,表示的原因不是唯一的原因,表示可能的原因之一,语气上比较弱;because of因为,后接词或短语;because因为,表示的原因是确定的原因,语气比较强;but但是;根据本题意思可知,前后句是因果关系,后句表达的是原因,且是一个完整的句子,故用because连接,故选C。67.D【解析】句意:在礼品商店我什么东西也没有买,因为里面的东西真的很贵。A. and而且,表示并列关系;B. but 但是,表示转折关系;C. so因此,表示因果关系;D. because因为,表示原因。结合句意可知,因为东西贵而没有购买,故答案为D。68.B【解析】句意:他们要去福建,因为他们认为那是个美丽的地方。考查连词。so因此;because因为;then然后;but但是;空格前后两句之间是因果关系,属于“前果后因”,去福建是因为觉得那里很美,用because引导原因状语从句,故选B。69.A【解析】句意:老师很高兴,因为她的学生们在她的课上都过得很愉快。考查连词辨析。because因为,引导原因状语从句;or或者,并列连词,表选择;but但是,并列连词,表转折;before在……之前,引导时间状语从句。根据“The teacher is very happy ... her students all have a good time in her classes.”可知,前一句表示结果,后一句表示原因,因此用because符合语境。故选A。70.A【解析】句意:——由于糟糕的天气,男孩没来上学。——没有,因为他生病了。考查because与because of的用法区别。because of后接名词性短语,而because后接句子。第一空后的“the bad weather”是名词性短语,因此用because of;第二空后的“he was ill”是一个句子,因此用because。故选A。71.A【解析】句意:我没有接受他的帮助,因为我想自己试一试。考查连词。because因为;though尽管;until直到……;unless除非。根据“I didn’t accept his help”和“I wanted to try it myself.”的关系可知, 前后两句是因果关系,因为想试一试,所以不接受他的帮助。故选A。72.A【解析】试题分析:句意:这两家公司决定合作,因为他们有共同的利益。前因后果,后面是表原因的状语从句,用because连接。A.because; B. unless 除非,表让步;C. but但是,表转折;D. or或者,表选择。故选A。考点:考查原因状语从句的连词 。73.D【解析】试题分析:句意:我不喜欢历史,因为它很令人厌烦。And和,而且;So因此,所以;But但是;Because因为。根据句意可知,这里说的是不喜欢历史的原因,故应选D。考点:考查连词。74.B【解析】句意“他上学迟到了,因为他在上学的路上帮助一个老妇女回家”。A.目的是,为的是(引导目的状语从句);B.因为(引导原因状语从句);C.在现在完成时中,yet用于疑问句和否定句中;yet还有其他用法:用于否定句中,意思是“还、尚、迄今、到那时”;D.但是(表示转折)。根据句意可知,上学迟到是因为帮助一个老太太回家,表示原因,故选B。75.D【解析】句意:——你为什么喜欢英语?——因为我认为它非常有趣。So所以,表示结果;and而且,表示递进关系;but但是,表示转折关系;because因为,表示原因。根据Why do you like English 可知此处表示原因,故选D。76.B【解析】句意:约翰决定不吃太多,因为他总是胃痛。考查连词辨析。if如果,表条件;because因为,表原因;when当……的时候,表时间;until直到,表时间。根据句意语境,可知本句前后是因果关系,故选B。77.B【解析】句意:我最喜欢春天因为它是一个放风筝的好季节。考查连词辨析。why为什么;because因为;that那,那个;when什么时候。空后“it’s a good season for flying kites”解释了“我最喜欢春天”的原因,因此用because引导原因状语从句,故选B。78.C【解析】句意:既然你的爸爸恢复了,你再也不用担心了。考查连词辨析。After在……之后;Before在……之前;Since既然;Until直到。根据前后句关系可知,应是因果关系。故选C。79.D【解析】句意:汤姆感到不高兴,因为他认为他的同学不喜欢他。考查连词辨析。though尽管;so所以;unless除非;because因为。根据“Tom felt unhappy…he didn’t think his classmates liked him.”的语境可知,前后句之间表示因果关系,前果后因,用because引导原因状语从句。故选D。80.D【解析】我喜欢音乐,因为它令人放松。本句前后是因果关系,用because连接。故选D。81.A【解析】句意:我喜欢在图书馆看书,因为它非常安静。考查连词辨析。because因为;but但是;or或者;and和。空后句是前句的原因,用because引导原因状语从句。故选A。82.D【解析】试题分析:句意:我不喜欢数学,因为它对我来说是困难的。but 但是;and和,而且;or或者,否则;because因为。根据句意可知,这句话说的是不喜欢数学的原因,故应选D。考点:考查连词。83.B【解析】句意:因为他的右手受伤了,所以他写得很慢。考查连词。because因为,不能和so连用;although虽然,不能和but连用;所以排除A、C选项。根据句意:因为他的右手受伤了,所以他写得很慢;可知前后表示因果关系,although意为“虽然…但是…”表示转折关系,放在句中含义不合理,故答案选B。84.A【解析】句意:我看不懂这本书,因为书中新词太多了。A. because因为;B. so所以;C. but但是;D. and而且。因为生词量大而看不懂这本书,表示原因,故答案为A。85.C【解析】句意:我不喜欢这部电视连续剧,因为它很无聊。but但是,表示转折;and和,而且,表示并列;because因为,表示原因;so因此,表示结果。根据句意可知,这里表示不喜欢这部电视连续剧的原因,故应选C。86.B【解析】句意:我不能和你一起玩,因为我现在很忙。考查连词辨析。根据I can’t play with you ______ I’m very busy now.可知句意为“我不能和你一起玩,因为我现在很忙。”可知前后句是因果关系,而且后半句是前半句的原因,所以用because引出原因,故答案选B。【点睛】本题考查连词辨析。A. but但是,表示转折关系;B. because因为,表示因果关系,引出原因。C. and和、而且、就,表示并列、顺承关系;D. so所以,因此,表示因果关系,引出结果。根据句意可知前后句是因果关系,而且后半句是前半句的原因,所以用because引出原因,故答案选B。87.C【解析】句意:你应该保持双手清洁因为这样能帮助你保持健康。考查连词词义辨析。when当……时;although尽管;because因为;but但是。保持双手清洁的原因是这样能帮助你保持健康。故选because,用来引导原因状语从句。故选C。88.C【解析】句意:因为那里没有公共汽车服务,我们不得不步行。考查连词辨析。When当……时候;If如果;Since因为;So所以。根据“…there is no bus service there, we have to walk.”可知,此处说的是“因为那里没有公共汽车服务”,应该用since引导原因状语从句。故选C。89.B【解析】句意:—你能告诉我从这儿大概要走五分钟就到的车站的路吗?——没问题。但是不必坐出租车,因为你可以很容易地走到车站。根据句子结构可知,第一个空后是定语从句,先行词是the way,从句中缺少主语,故用which引导;第二空引导的是状语从句,if如果;since既然;when当…时候。根据句意可知,应填since,引导原因状语从句。故选B。90.D【解析】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。so 所以;because 因为,引导原因状语从句;because for 不符合英语表达习惯;because of因为,由于,后面不能加句子,只能加词或短语, 所以选D。91.B【解析】句意:——你认为今天我应该穿桔色的衬衫吗?——是的。因此桔色能带给你好运,它对你的访问是好的。考查连词的用法。though虽然;as因为;but但是;while然而。分析“orange can bring you good luck”可知,此句是原因。故选B。92.A【解析】句意:因为我又一次迟到了,所以老师很生气。考查连词。because因为;so因此;but但是。because和so不能同时用于一个句子中,由“…I’m late again,…the teacher is very angry”可知,前句是原因,后句是结果,此处应用because引导原因状语从句。故选A。93.D【解析】句意:——我喜欢雨水,因为它使我感觉凉爽和放松。——我也一样。A. or或者;B. so因此;C. but但是;D. because因为。根据设空处前后句的句意"我喜欢雨"和"它使我感觉凉爽和放松",可知后面一句表达是前面一句的原因,所以用连词because引导原因状语从句;故答案选D。94.D【解析】句意:上星期天我们没有去中央公园,因为天气太糟了。考查连词辨析。because of因为,介词短语;so因此;if如果;because因为,引导原因状语从句。分析句子可知,空后的“the weather was too bad.”是前半句“We did not go to Central Park last Sunday”的原因,空处表示“因为”,排除B、C两项;because后跟从句;because of后跟名词、代词或动名词。因为“the weather was too bad”是从句,应该用because引导。故选D。95.B【解析】句意:两个母亲和两个女儿在一家餐馆吃午饭。他们每人花了70元,但总共只付了210元。为什么? 实际上只有三个人,一个祖母,一个母亲,一个女儿,这里的母亲是双重身份。每人70元,三个人共计210元。96.D【解析】试题分析:句意:我不喜欢英语因为它很难。根据汉译,本句前后句是因果关系,用because连接。故选D。点睛:此类题要根据前后句的语义和语法关系确定选用适当的连词。97.A【解析】句意:简的生日在冬天,但是她出生在夏天,为什么?A. she was born in Australia and lives in London她出生在澳大利亚,生活在伦敦。B. she was born in the west and lives in the east.她出生在西部,生活在东部。C. She is always moving.它总是在移动。D. she was born in China and lives in the US.她出生在中国,生活在美国。这是南北半球季节相反的原因。澳大利亚在南半球,伦敦在北半球,当澳大利亚是夏季的时候,伦敦正是冬季,故答案为A。98.D【解析】试题分析:句意:由于你不喜欢自行车,所以你不应该买它。With表伴随;but表转折;so表顺承;since表原因。故选D。21世纪教育网(www.21cnjy.com)21世纪教育网(www.21cnjy.com) 展开更多...... 收起↑ 资源预览 当前文档不提供在线查看服务,请下载使用!