内容正文:
班级 姓名 学号 分数
Unit 5 Art world
原因状语从句
(时间:60分钟,满分:80分)
中考英语原因状语从句是英语语法中的一个重要部分,它用于解释主句动作或状态发生的原因。以下是关于原因状语从句的详细知识点及例子:
一、引导词
原因状语从句通常由以下连词引导:because(因为),as(由于),since(既然),for(因为,由于),now that(既然),given that(考虑到),considering that(考虑到)等。这些连词在句子中起到连接和解释原因的作用。
二、语气与用法区别
because:语气最强,通常用来回答why提出的问题,表示直接且明确的原因。
例句:I didn't go to the party because I was feeling sick.(我没去参加聚会,因为我感到不舒服。)
as和since:通常用于表示已知或显而易见的原因,语气相对较弱。
as的例句:As it was raining, we decided to stay at home.(因为下雨,我们决定待在家里。)
since的例句:Since you're already here, you might as well help.(既然你已经在这里了,不妨帮个忙吧。)
for:不用于句首,而是对前面分句加以解释或说明原因,语气最弱。
例句:He seldom talks to others, for he is very shy.(他很少和别人说话,因为他很害羞。)
三、例句
because引导的原因状语从句
I had to cancel the trip because my car broke down.(我不得不取消旅行,因为我的车坏了。)
We didn't watch the movie because it was sold out.(我们没看那部电影,因为票已经卖完了。)
as引导的原因状语从句
As it was getting late, we decided to call it a day.(由于时间不早了,我们决定今天就此结束。)
As he was feeling tired, he took a nap after lunch.(因为他感到累了,所以午饭后他小睡了一会儿。)
since引导的原因状语从句
Since you're the oldest, you should set a good example for your younger siblings.(既然你是最大的,你应该为你的弟弟妹妹们树立一个好榜样。)
Since it's raining, we'll have to stay indoors.(既然下雨了,我们得待在室内。)
for引导的原因状语从句(注意,for引导的原因状语从句通常不放在句首,而是对前面分句进行解释或说明)
He didn't answer the phone, for he was in a meeting.(他没有接电话,因为他在开会。)
She was late for work, for she had overslept.(她上班迟到了,因为她睡过头了。)
given that / considering that引导的原因状语从句
Given that it's his first time, he did a pretty good job.(考虑到这是他第一次,他做得相当不错。)
Considering that she's been studying for so long, it's no surprise she's tired.(考虑到她学了这么久,她累了就不足为奇了。)
1、 单项选择(本大题共50小题,每小题2分,共100分)
1.(2024·江苏连云港·中考真题)Our school life is more interesting now _________ we can enjoy ourselves in different clubs.
A.because B.whether C.unless D.although
2.(2024·江苏镇江·二模)More teachers are willing to receive AI training. ________ AI technology in helping with teaching becomes more and more popular.
A.or B.unless C.because D.though
3.(2024·江苏南京·三模)English is my favorite subject ________ it’s very interesting.
A.if B.though C.whether D.as
4.(2024·江苏南通·二模)—It’s said that Beijing Duck is very delicious.
—Well, ________ we are here, why not have a try?
A.though B.unless C.since D.before
5.(2024·江苏宿迁·二模)The athlete received a lot of cheers from the audience _________ she won the champion in the final.
A.because B.though C.so that D.even if
6.(2024·江苏镇江·一模)—It is said that the famous snack smelly toufu in Changsha tastes strange!
—________ we have been here, why not give it a try?
A.Since B.When C.If D.Though
7.(2024·江苏宿迁·二模)Life never runs smoothly ________ it is full of ups and downs.
A.though B.since C.while D.unless
8.(2024·江苏南京·一模)Perhaps you should ask someone else for help ________ you can’t solve the problem.
A.so B.but C.since D.unless
9.(2024·江苏无锡·一模)—Nothing to worry about. He won’t leave until we arrive.
—________ time is money, we should not keep others waiting.
A.Though B.Unless C.Since D.If
10.(2024·江苏无锡·一模)Why not use this app to save your pocket money ________ you are not going to spend it?
A.until B.unless C.though D.since
11.(2023·江苏镇江·二模)—It’s said that Zhenjiang Pot Cover Noodles are very delicious.
—Well, ________ we are here, why not have a try?
A.though B.unless C.since D.before
12.(2023九年级·江苏·专题练习)________ you can’t work out the problem, perhaps you need to ask your classmates for help.
A.Unless B.Though C.Since D.Whether
13.(22-23九年级上·江苏盐城·阶段练习)________ everyone is here, let’s begin our meeting.
A.Unless B.Since C.Although D.When
14.(22-23九年级上·江苏南通·阶段练习)—It’s said that Beijing Duck is very famous and delicious.
—Well, _______ we’re here, why not go to the restaurant and order some?
A.unless B.though C.whenever D.since
15.(22-23九年级上·江苏宿迁·期末)—It’s said that Xinyuan mutton tastes delicious.
—Well, ________ we are here, why not go to the restaurant and order some?
A.though B.unless C.since D.whenever
16.(22-23九年级上·江苏常州·期末)________ you didn’t answer my call, I left a message on WeChat.
A.If B.As C.While D.Before
17.(23-24八年级上·江苏南京·期末)After the earthquake, Nick told his son that ________ they were both alive, they did not fail and they could start again.
A.when B.since C.while D.before
18.(23-24九年级上·江苏扬州·期末)________ we are good friends, let me share your trouble and worries.
A.Since B.Though C.Until D.Unless
19.(23-24九年级上·江苏扬州·期末)—What shall we do to kill time?
—Well, ________ it is Star Cinema’s half-price day, why not go to watch a film?
A.since B.whether C.although D.until
20.(2024·江苏无锡·一模)The course of life never runs smoothly ________ it is full of ups and downs.
A.since B.though C.while D.unless
21.(2023·江苏徐州·三模)—Indian street food may taste a bit strange.
—Well, we are here, why not give it a try?
A.if B.although C.unless D.since
22.(2023·江苏扬州·二模)Road salt is commonly used to clear the snow on roads during winter ______ it makes it harder for water and snow to freeze.
A.though B.because C.if D.unless
23.(2023·江苏南京·二模)Nanjing Forest Music Festival is worth attending ________ it mixes traditional Chinese music and modern Western music.
A.while B.until C.whenever D.because
24.(2023·江苏扬州·一模)—I hear that you have lived in Yangzhou since you got married.
—That’s true. ________ the cost of living in Yangzhou is among the lowest in Jiangsu Province, people live there comfortably and happily.
A.Since B.When C.Although D.Unless
25.(2023·江苏无锡·一模)The course of life never runs smoothly ________ it is full of ups and downs.
A.though B.since C.while D.unless
26.(2023·江苏淮安·一模)—Mother’s Day is coming. Shall we make some nice cards for our mothers?
—Good idea! But would you please show me how to make them ________ I am not good at DIY?
A.until B.when C.while D.since
27.(21-22九年级上·江苏宿迁·期末)—What a heavy snow! How can we go to work today?
—________ it is snowing heavily, let’s walk instead of driving.
A.Because B.Since C.As D.Though
28.(21-22九年级上·江苏扬州·期末)________ this computer doesn’t work, let’s try another.
A.Since B.Because C.After D.While
29.(21-22九年级上·江苏淮安·期末)—Why do you like listening to music?
—________ it makes me feel relaxed.
A.Because of B.Because C.Since D.As
30.(21-22九年级上·江苏镇江·期末)________ we’ve made the promise, let’s try to keep it.
A.Whether B.Since C.Though D.Unless
31.(2022·江苏南通·一模)_________ most people get news online, printed newspapers won’t disappear in a hurry.
A.Because B.Since C.Though D.Unless
32.(2022·江苏镇江·二模)Many Chinese people are falling in love with camping ________ long-distance travel is becoming more difficult.
A.until B.although C.unless D.since
33.(2022·江苏无锡·二模)________ your father is well again, you no longer have anything to worry about.
A.Since B.Before C.Although D.While
34.(2022·江苏无锡·模拟预测)Life is like a one-way race, so treasure every moment ________ time cannot be won again.
A.so B.as C.if D.unless
35.(2022·江苏常州·二模)________ you have finished most of your homework at school, you needn’t stay up late to do it.
A.Before B.Until C.Since D.When
36.(22-23九年级上·江苏无锡·阶段练习)—Do you think I should wear an orange shirt today?
—Yes. ________ orange can bring you good luck, it is good for your interview.
A.And B.As C.But D.While
37.(2022·江苏淮安·中考真题)We would like to buy electric cars ________ they produce less air pollution.
A.because B.so C.though D.but
38.(22-23九年级上·江苏南通·阶段练习)—You recommend me to wear an orange shirt today, right?
—Yes. ________ orange can bring you good luck, it is good for your interview.
A.As B.When C.If D.While
39.(21-22九年级上·江苏淮安·期中)_________ everybody is here now, let’s begin our meeting.
A.With B.For C.If D.Since
40.(21-22九年级上·江苏盐城·期末)—It’s said that Donglai fish soup noodles taste delicious.
—Well, ________ we are here, why not go to the restaurant and order some?
A.though B.unless C.since D.whenever
41.(2021·江苏无锡·中考真题)________ we’ve made the promise, let’s keep to it and not give up easily.
A.Whether B.Since C.Though D.Unless
42.(2021·江苏盐城·一模)________ the COVID-19 is still spreading rapidly, getting a vaccine(疫苗) is quite necessary.
A.Before B.Since C.Although D.unless
43.(21-22九年级上·江苏宿迁·期中)—Let’s go to the science and technology museum now.
—OK. ________ it’s raining outside, we’d better take an umbrella and go there by taxi.
A.As B.When C.Until D.If
44.(2021·江苏徐州·二模)________ everyone is here, let’s begin the party.
A.Since B.Though C.While D.Unless
45.(21-22九年级上·江苏苏州·阶段练习)—Christmas is coming. Shall we make a card for Miss Li?
—Good idea! But please show me how to make it. I know little about DIY.
A.until B.when C.as D.unless
46.(2021·江苏苏州·二模)________ people have to be at least 18 to get the vaccine(疫苗), I have to wait several weeks for my next birthday.
A.Since B.Before C.Until D.When
47.(2022·江苏盐城·一模)Some students had to give up their hobbies ________ they were busy with their school work.
A.while B.because C.though D.until
48.(2022·江苏·一模)____________ we are young, we shouldn’t be too afraid of making mistakes.
A.Since B.Although C.While D.Unless
49.(2022·江苏扬州·一模)________ everything was going according to the plan, there was no need to worry.
A.Since B.Although C.Unless D.Before
50.(2021·江苏扬州·一模)At present,it is not easy for some students to get up early ________ they have too much homework to finish.
A.unless B.since C.as a result D.although
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参考答案:
1.A
【详解】句意:我们的学校生活现在更有趣了,因为我们可以在不同的俱乐部玩得很开心。
考查连词辨析。because因为;whether是否;unless除非;although尽管。分析句子可知,学校生活更有趣的原因是可以在不同的俱乐部玩得开心,前后文之间是因果关系,后文表示原因,应用because连接。故选A。
2.C
【详解】句意:更多的老师愿意去接受AI培训,因为AI科技在辅助教学方面变得越来越受欢迎。
考查连词辨析。or或者;unless除非;because因为;though尽管。根据“AI technology...becomes more and more popular.”可知空后的句子表示老师选择AI培训的原因,用because引导原因状语从句,故选C。
3.D
【详解】句意:英语是我最喜欢的科目,因为它非常有趣。
考查连词。if如果;though虽然;whether是否;as因为。横线后解释原因,所以是as。故选D。
4.C
【详解】句意:——据说北京烤鸭很好吃。——好吧,既然我们在这里,为什么不试一试呢?
考查连词辨析。though尽管;unless除非;since既然;before“在……之前”。根据“we are here, why not have a try”可知,既然在北京,就该去试试北京烤鸭,此处应用since引导原因状语从句。故选C。
5.A
【详解】句意:那名运动员收到了来自观众的无数欢呼,因为她在决赛中赢得了冠军。
考查连词辨析。because因为;though尽管;so that以便于;even if即使。分析前后句关系可知“she won the champion in the final”是“The athlete received a lot of cheers from the audience”的原因,因此应用“because”引导原因状语从句。故选A。
6.A
【详解】句意:——据说长沙有名的小吃臭豆腐吃起来怪怪的!——既然我们在这里,为什么不试试呢?
考查连词辨析。Since既然;When当……时;If如果;Though虽然。根据“why not give it a try?”可知,此处是指既然我们在这里,为什么不去试试,用since引导原因状语从句。故选A。
7.B
【详解】句意:生活从不是一帆风顺的,因为它充满了起起落落。
考查连词。though虽然;since因为;while然而;unless除非。根据“Life never runs smoothly...it is full of ups and downs.”可知,此处应用since,引导原因状语从句,表示因为生活充满了起伏,所以它从来都不是一帆风顺的。故选B。
8.C
【详解】句意:既然你不能解决这个问题,也许你应该向其他人寻求帮助。
考查连词辨析。so因此;but但是;since既然;unless除非。根据“you can’t solve the problem”可知,此处指既然不能解决这个问题,用since引导原因状语从句。故选C。
9.C
【详解】句意:——没什么好担心的。直到我们到达他才会离开。——既然时间就是金钱,我们就不应该让别人等待。
考查连词辨析。Though虽然;Unless除非;Since既然;If如果。根据“... time is money, we should not keep others waiting.”可知,前后两句为因果关系,应用since引导原因状语从句,故选C。
10.D
【详解】句意:既然你不打算用,为什么不用这款应用软件把你的零用钱存起来呢?
考查连词辨析。until直到……为止;unless除非;though尽管;since既然。根据“Why not use this app to save your pocket money...you are not going to spend it?”可知,两句为因果关系,前果后因,所以是since引导的原因状语从句,表示明显的原因或已知的事实。故选D。
11.C
【详解】句意:——据说镇江锅盖面很好吃。——嗯,既然我们来了,为什么不试一试呢?
考查连词辨析。though尽管;unless除非;since既然;before在……之前。分析句子可知,此处指既然都到镇江了,就去试试锅盖面,应用since引导原因状语从句。故选C。
12.C
【详解】句意:既然你解不出这道题,也许你需要向你的同学求助。
考查连词辨析。Unless除非;Though尽管;Since既然,由于;Whether是否。“you can’t work out the problem”是向同学求助的原因,用Since引导原因状语从句。故选C。
13.B
【详解】句意:既然大家都到齐了,我们开始开会吧。
考查连词辨析。Unless除非;Since既然;Although尽管;When当……时。根据“... everyone is here, let’s begin our meeting.”可知,既然所有人都在这里,那我们开始会议,since符合语境,引导原因状语从句。故选B。
14.D
【详解】句意:——据说北京烤鸭很有名,很好吃。——好吧,既然我们在这里,为什么不去餐馆点一些呢?
考查连词辨析。unless除非;though尽管;whenever无论何时;since既然。根据“...we’re here, why not go to the restaurant and order some”可知,“我们在这里”是“点餐”的原因,since引导原因状语从句。故选D。
15.C
【详解】句意:——据说鑫源羊肉味道鲜美。——嗯,既然我们都来了,为什么不去餐厅点一些呢?
考查连词辨析。though尽管;unless除非;since既然;whenever无论何时。根据“...we are here, why not go to the restaurant and order some?”可知,既然我们在这里,为什么不去饭店点一些吃呢,since符合语境,引导原因状语从句。故选C。
16.B
【详解】句意:由于你没有接我的电话,所以我在微信上留言了。
考查连词辨析。If如果;As由于,因为;While当……的时候;Before在……以前。根据“...you didn’t answer my call, I left a message on WeChat.”可知,因为对方没接电话,所以我才在微信上留言,前半句是后半句的原因,因此“As”符合语境。故选B。
17.B
【详解】句意:地震发生后,尼克告诉儿子,既然他们都还活着,他们就没有失败,可以重新开始。
考查连词辨析。when当……时;since自从,既然;while虽然,与……同时;before在……之前。根据“Nick told his son that ... they were both alive, they did not fail and they could start again.”可知,既然他们还活着,他们就没有失败,since引导原因状语从句。故选B。
18.A
【详解】句意:因为我们是好朋友,让我来分担你的麻烦和苦恼吧。
考查连词辨析。Since因为;Though虽然;Until直到;Unless除非。分析前后句关系可知,是因果关系,且前句是原因,因此用“Since”。故选A。
19.A
【详解】句意:——我们该做什么来消磨时间呢?——好吧,既然今天是星空影院的半价日,为什么不去看电影呢?
考查从属连词辨析。since既然,因为(引导原因状语从句);whether是否;although尽管(引导让步状语从句);until直到(引导时间状语从句)。根据“…it is Star Cinema’s half-price day, why not go to watch a film”可知因为今天是星空影院的半价日,所以建议一起去看电影。故选A。
20.A
【详解】句意:人生之路从不一帆风顺,因为它充满了起伏。
考查连词辨析。since因为;though虽然;while然而;unless除非。根据“The course of life never runs smoothly...it is full of ups and downs.”可知,此空是since引导原因状语从句,表示“因为人生充满了起伏,所以人生之路从来都不是一帆风顺的”。故选A。
21.D
【详解】句意:——印度街头食物可能尝起来有点怪。——嗯,既然我们在这儿,为什么不试一试。
考查连词。if如果;although虽然;unless除非;since既然。分析句子可知,横线上的词引导后面的原因状语从句,所以是since。故选D。
22.B
【详解】句意:在冬季,道路盐通常用于清除道路上的积雪,因为它会使水和雪更难结冰。
考查连词。though尽管,表示转折;because因为,表原因;if如果,表示条件关系;unless除非,表示否定条件关系。根据“Road salt is commonly used to clear the snow on roads during winter”和“it makes it harder for water and snow to freeze”可知,前后句是因果关系。故选B。
23.D
【详解】句意:南京森林音乐节是值得参加的,因为它融合了中国传统音乐和现代西方音乐。
考查连词辨析。while与……同时;until直到;whenever无论何时;because因为。根据“Nanjing Forest Music Festival is worth attending”和“it mixes traditional Chinese music and modern Western music”可知,前后句为因果关系,前果后因,应用because进行连接。故选D。
24.A
【详解】句意:——我听说你结婚后一直住在扬州。——这是真的。由于扬州是江苏省生活成本最低的城市之一,人们在那里生活得舒适而快乐。
考查连词辨析。Since因为,由于;When当……时;Although尽管;Unless除非。分析语境可知,“扬州是江苏省生活成本最低的城市之一”是“人们在那里生活得舒适而快乐”的原因,故用Since引导原因状语从句。故选A。
25.B
【详解】句意:人生之路从不一帆风顺,因为它充满了起伏。
考查连词。though虽然;since因为;while然而;unless除非。根据“The course of life never runs smoothly...it is full of ups and downs.”可知,此空应是since,引导原因状语从句,表示因为人生充满了起伏,所以人生之路从来都不是一帆风顺的。故选B。
26.D
【详解】句意:——母亲节就要到了。我们为我们的妈妈做一些漂亮的卡片好吗?——好主意!但是你能告诉我怎么做吗?因为我不擅长DIY。
考查连词辨析。until直到;when当……时;while当……时;since因为。“I am not good at DIY”是“But would you please show me how to make them”的原因,用since引导原因状语从句。故选D。
27.B
【详解】句意:——多大的雪啊!我们今天怎么去上班?——既然雪下得很大,我们走路而不是开车吧。
考查原因状语从句。Because因为;Since既然、因为;As在……时;Though虽然。根据答句中“it is snowing heavily, let’s walk instead of driving”可知雪下得大是走路去上班的原因,用since引导原因状语从句。故选B。
28.A
【详解】句意:既然这台电脑不能工作,让我们试另一台吧。
考查从属连词辨析。Since因为,既然;Because因为;After在……之后;While在……期间。根据“this computer doesn’t work”可知,电脑不工作,是很明显的原因,且置于主句之前,因此应用since来引导原因状语从句。故选A。
29.B
【详解】句意:——你为什么喜欢听音乐?——因为它让我感到放松。
考查从属连词。Because of因为,后跟短语;Because因为,后跟句子;Since既然;As由于。根据“Why do you like listening to music? ”可知,Why提问的特殊疑问句询问原因,需要使用Because回答。故选B。
30.B
【详解】句意:既然我们做了承诺,让我们试着遵守它吧。
考查连词辨析。Whether是否;Since既然;Though虽然;Unless除非。根据“we’ve made the promise, let’s try to keep it.”可知前后是因果关系,用since引导原因状语从句。故选B。
31.C
【详解】句意:虽然大多数人在网上获得新闻,但纸质报纸不会很快消失。
考查连词辨析。because因为;since既然;though虽然;unless除非。“most people get news online”和“printed newspapers won’t disappear in a hurry”之间构成让步关系,用though引导让步状语从句。故选C。
32.D
【详解】句意:由于长途旅行变得越来越困难,许多中国人都爱上了露营。
考查连词辨析。until直到;although尽管;unless除非;since因为。根据“long-distance travel is becoming more difficult.”可知此句和上文之间存在因果关系,用连词since,故选D。
33.A
【详解】句意:既然你父亲已经康复了,你再也没有什么可担心的了。
考查连词辨析。Since因为,既然;Before在……之前;Although尽管;While当……时。根据“you no longer have anything to worry about”可知,因为父亲已经康复了,所以不需要担心了;故选A。
34.B
【详解】句意:生活就像单程赛,所以珍惜每个时刻,因为时光一去不复返。
考查连词辨析。so所以;as因为;if如果;unless除非;根据句意,珍惜每个时刻……时光一去不复返,可知此处用as,表示“因为”。故选B。
35.C
【详解】句意:既然你在学校已经完成了大部分作业,所以你不必熬夜做。
考查连词辨析。Before在……之前;Until直到;Since既然,因为;When当。根据“you have finished most of your homework at school, you needn’t stay up late to do it”可知前后两句是因果关系,前因后果,用since引导原因状语从句。故选C。
36.B
【详解】句意:——你认为我今天应该穿一件橙色的衬衫吗?——是的。因为橙色能给你带来好运,它对你的面试很有好处。
考查连词辨析。And和;As由于;But但是;While当……时。根据“orange can bring you good luck, it is good for your interview”可知,前后句是因果关系,用as引导原因状语从句,故选B。
37.A
【详解】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。
38.A
【详解】句意:——你建议我今天穿一件橙色的衬衫,对吗?——是的。因为橙色能给你带来好运,所以它对你的面试有好处。
考查连词辨析。As因为;When当……时;If如果;While然而。根据“orange can bring you good luck, it is good for your interview.”可知,前后两个句子之间是因果关系,所以题空处应填从属连词as。故选A。
39.D
【详解】句意:既然大家都到齐了,我们开始开会吧。
考查连词辨析。with带有;for因为;if如果;since既然。根据“everybody is here now, let’s begin our meeting”可知,既然都到齐了,就可以开始开会,应填since符合语境,故选D。
40.C
【详解】句意:——据说东莱鱼汤面味道鲜美。——既然我们来了,为什么不去餐厅点一些呢?
考查从属连词。though虽然;unless除非;since既然,自从;whenever无论何时。根据“Well, …we are here, why not go to the restaurant and order some?”可知,此处表原因,使用since引导原因状语从句。故选C。
41.B
【详解】句意:既然我们已经许下了诺言,就让我们信守诺言,不要轻易放弃。
考连词。Whether是否;Since既然;Though虽然;Unless除非;根据“we’ve made the promise, let’s keep to it and not give up easily.”可知,此处表达的是因果关系,应用since连接,引导原因状语从句,故选B。
42.B
【详解】句意:由于新型冠状病毒仍在快速传播,接种疫苗是非常必要的。
考查连词辨析。before在……之前;since由于;although尽管;unless除非。根据“ the COVID-19 is still spreading rapidly, getting a vaccine(疫苗) is quite necessary”可知,“新型冠状病毒仍在快速传播”是接种疫苗的原因,用since引导原因状语从句,故选B。
43.A
【详解】句意:——我们现在去科技馆吧。——好的。因为外面正在下雨,我们最好带把伞,然后乘出租车去那里。
考查连词辨析。as由于;when当……时;until直到;if如果。根据“it’s raining outside, we’d better take an umbrella and go there by taxi”可知,此处是解释带着伞,坐出租车去那里的原因,故选A。
44.A
【详解】句意:既然大家都来了,让我们开始晚会吧。
考查连词辨析。Since既然;Though尽管;While当……时候;Unless除非,如果不。根据两句话的关系可知,前面这句话表示原因,后面表示结果,这里应用Since引导原因状语从句。故选A。
45.C
【详解】句意:——圣诞节快到了。我们给李小姐做一张卡片好吗?——好主意!但是请告诉我怎么做,因为我对DIY知之甚少。
考查从属连词辨析。until直到;when当……时;as因为;unless除非。根据“But please show me how to make it. I know little about DIY”可知,空后解释“告诉我怎么做”的原因,应用as引导原因状语从句。故选C。
46.A
【详解】句意:由于人们必须年满18岁才能接种疫苗,我得等几个星期才能等到下一个生日。
考查连词辨析。since既然,由于;before在……之前;until直到;when当……时。“ people have to be at least 18 to get the vaccine”与“I have to wait several weeks for my next birthday”是因果关系,用since引导原因状语从句,故选A。
47.B
【详解】句意:一些学生不得不放弃他们的爱好,因为他们忙于学业。
考查连词辨析。while在……期间;because因为;though尽管;until直到……为止。根据“Some students had to give up their hobbies”可知,学生放弃了爱好,是因为他们忙于学业。故选B。
48.A
【详解】句意:因为我们还年轻,所以不应该太害怕犯错误。
考查从属连词辨析。Since因为;Although尽管;While当……时候;Unless除非。根据“ ...we are young, we shouldn’t be too afraid of making mistakes.”可知,句子前后是因果关系,用Since引导原因状语从句。故选A。
49.A
【详解】句意:既然一切都在按计划进行,就没有必要担心了。
考查从属连词辨析。Since既然;Although尽管;Unless除非;Before以前。分析“...everything was going according to the plan, there was no need to worry.”可知,既然一切都在按计划进行,就没有必要担心了。since意为“既然”,引导原因状语从句。故选A。
50.B
【详解】句意:现在,有些学生起得早并不容易,因为他们有太多的作业要完成。
考查连词辨析。unless除非;since既然,自从;as a result结果;although尽管,虽然。根据“At present,it is not easy for some students to get up early”可知,和下文之间存在因果关系,故选B。
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