高中英语专题:原因状语从句全面解析
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这是一份高中英语专题:原因状语从句全面解析,共11页。
高中英语专题:原因状语从句全面解析 1.I really enjoy listening to music ___ it helps me relax and takes my mind away from other cares of the day.A.because B.before C.unless D.until 全面解析:题目考查原因状语从句。句意:我非常喜欢过听音乐,因为它能让我放松,使我不去想其它的事情。前后是因果关系,故选A。 2.Tell your friend not to take the pills _______ he may have health problems in the future, _______ it is too late.A.cause; which B.that; whenC.because; when D.that; which 全面解析:让你朋友不要吃这些药片,因为这些药片来可能引起健康方面的问题,到时候就太迟了。because引导原因状语从句,表因果关系;when引导定语从句,在从句中作状语。 3.— How foolish I was!— ________ you have realized that, stop blaming yourself.A.Now that B.Unless C.Although D.Even if 全面解析:考查连词。 A. Now that 既然;B. Unless除非;C. Although虽然;D. Even if 即使;句意:我多么愚蠢呀,既然你已经意识到了,别再责怪自己,故选A项。 4.I usually do the washing up and leave the cooking to my wife, ________ she's a better cook than me.A.unless B.as C.even though D.in case 全面解析:考查状语从句。句意:我通常洗衣服,把厨房留给我的妻子,因为她的厨艺比我好。 as ”由于“,此处引导原因状语从句,故选B。
5.___ the plan has been made, let's get down to __ it out.A.Now that...carry B.Because...carryC.Since...carrying D.Now...putting 全面解析:既然计划已经制定好了,让我们开始认真实施吧。get down to doing开始认真做,to是介词。carry out实施。故选C。 6._____ gas prices are rising, people are looking for less expensive ways to get around.A.Now that B.Even if C.Although D.Unless 全面解析:既然天然气价格正在上涨,人们正在寻找更便宜的出行方式。A. Now that“既然”;B. Even if“即使”;C. Although“尽管”;D. Unless“除非”。天然气价格上涨与人们寻找更便宜的出行方式是因果关系,Now that可以引导原因状语从句,故答案选A。 7.I haven't talked with my friend Rose face to face for about one month, ________ she doesn't work here any longer. A.because B.if C.until D.although 全面解析:我已经有一个月没和我的朋友 Rose 面对面谈话了,因为她已经不在这里工作了。前后句是因果关系,此处引导原因状语,用because表原因,故选A。
8.The words "protect animals" appear everywhere in books and on screens, ________ some animals are even in danger of dying out. A.before B.until C.because D.where 全面解析:“保护动物”这几个字在书中和屏幕上随处可见,因为一些动物甚至处在灭绝的危险中。because引导原因状语从句,故选C。
9.You can't use the computer now, ________ the upgrade of the system is under way. A.until B.unless C.as D.after 全面解析:你现在不能用电脑,因为系统正在升级。A. until “直到”;B. unless “除非”;C. as “因为,当……的时候”;D. after “在……之后”。本题是一个原因状语从句,故选C。
10.The scientist does not study nature ________ it is useful to do so. He studies it because he takes pleasure in it. A.until B.because C.though D.unless 全面解析:这个科学家研究自然不是因为这样做有用。他研究自然是因为他从中会得到快乐。A. until“直到”;B. because“因为”;C. though“尽管”;D. unless“除非”。由下一句提示可知,本句为because引导的原因状语从句。故选B。
11.____________ you are familiar with the author's ideas, try reading all the sections as quickly as you possible can.A.Now that B.Ever since C.So that D.In case 全面解析:既然你熟悉作者的思路,尝试尽快地阅读的所有部分。now that“既然;由于”;ever since”自从“;so that”为的是。目的是“;in case”以防,万一“。故选A。 12.The White Horse Temple first gained importance _________ Buddhism spread from here to other parts of China and Asia.A.while B.so C.as D.though 全面解析:考查状语从句。句意:白马寺首次得到重视,因为佛教从这里传到中国和亚洲的其他地方。while“当……时候”;so“因此”;as“由于;因为”引导原因状语从句;though“尽管”。故选C。 13.—Do you know a new shopping mall opened in our town yesterday? —Yes. Why don't we pay a visit ________ we have time?A.until B.since C.unless D.though 全面解析:——你知道昨天我们镇上新开的一家购物中心吗?——是的。既然有时间,我们何不去看看呢?A: until“直到……才”;B: since“既然、自从”;C: unless“除非,如果.....不......”;D: though “虽然”。根据空前后的句意可知,空处的词引导原因状语从句,故选B。
14.Mark needs to learn Chinese ________ his company is opening a branch in Beijing.A.unless B.until C.although D.since 全面解析:考查连词。句意:马克需要学习汉语因为他的公司要在北京开一个分支。根据题意,前后之间为因果关系,因为要开分公司,所以需要学习汉语。故答案为D。
15.—May I go and play with Tom this afternoon, Mum? —No. You can't go out _________your homework is being done. A.before B.as C.until D.after 全面解析:——妈妈,今天下午我可以和汤姆一起去玩吗?——不,你不能出去,因为你将做你的作业。A. before“在……之前”;B. as“随着,因为”;C. until“直到”;D. after“在……之后”。分析可知,“your homework is being done”你在做家庭作业,应是前文“You can't go out”你不能出去,的原因,应选择表达因果逻辑关系的连词。故选B。
16.Try to buy less ______unnecessary shopping could become another source of pressure to the environment. A.though B.unless C.because D.before 全面解析:尽量少购物,因为不必要的购物可能会对环境造成压力。A. though“虽然,尽管”;B. unless“除非”;C. because“因为”;D. before“在……之前”。分析句子可知,过多的购物从而产生的垃圾会对环境造成一定的影响,两者之间是因果关系,因此需选择表示因果的连词。故选C。
17.Lily's drawing may not be excellent, ______ I know she has done her best.A.so B.although C.before D.as 全面解析:莉莉的绘画可能不是优秀的,因为我知道她已经尽力了。此处用as引导原因状语从句,故答案为D。 18.______ everyone can hear the speaker, there is no ________ to turn up the radio. A.Now that; point B.Even if; pointC.Now that; need D.Even if; need 全面解析:既然每一个人都能听到发言者的声音,就没有必要调大收音机。第一个空考查连词,now that “既然”,常用来引导原因状语从句;even if “即使;尽管”,常用来引导让步状语从句,根据两句话的句意,两句话之间是因果关系,第一个空应该用now that。there is no point in doing“做......没有意义”,there is no need to do“没有必要做......”,根据搭配和句意,应该是need。两空结合,故选C。
19.I can't figure out why some foreigners must go out ________ staying at home is the safest way during the outbreak of the virus. A.until B.before C.unless D.when 全面解析:我不明白既然在病毒爆发期间,呆在家里是最安全的方法,为什么有些外国人要出去。此处when作“既然”,引导原因状语从句,故选D。
20.___________you've got a chance, you might as well make full use of it. A.Now that B.After C.Although D.As soon as 全面解析:句意,既然你得到了一次机会,你也应该充分利用它。now that “既然”;after“在……以后”;although“尽管A;as soon as“一……就.....”。根据题意,故选A。
21.Steve Jobs is a key figure in the computer world _____ he has had a great influence on modern life and technology. A.on condition that B.in caseC.in that D.as long as 全面解析:史蒂夫·乔布斯是计算机世界的关键人物,因为他对现代生活和技术产生了巨大的影响。文中表示“因为…”,A. on condition that“如果”;B. in case“万一”;C. in that“因为”;D. as long as“只要”。故选C。
22.________ I have made this first visit, I hope I can come many more times.A.As if B.In that C.Even if D.Now that 全面解析:考查连词。A.As if好像;B. In that因为;由于;C. Even if即使;D. Now that既然。句意:既然我有了第一次访问,我希望我能来更多次。故选D。 23.________ the kids have left home for school, I've finally got some time to do what I'm interested in. A.As if B.Even if C.In case D.Now that 全面解析:由于孩子们都离开家去上学了,我终于有时间做我喜欢的事情了。now that“既然,由于”,符合句意,故选D。
24.I like the city, but I like the country better I have more friends there. A.in which B.for which C.in that D.at that 全面解析:我喜欢城市,但我更喜欢乡村,因为我在那里有更多的朋友。根据句意可知,此处引导原因状语从句,in that“因为”符合句意。故选C。
25.The recent discoveries at the Sanxingdui Ruins site further confirm the theory that the pits were used for sacrificial purposes ________ many of the items found had been smashed and burned before being buried. A.unless B.although C.when D.as 全面解析:最近在三星堆遗址的发现进一步证实了这一理论,即这些坑是用于祭祀目的的,因为发现的许多物品在被埋葬之前都被打碎并烧毁了。A. unless“除非”;B. although“尽管”;C. when“当……时候”;D. as“因为”。根据“many of the items found had been smashed and burned before being buried. ”发现的许多物品在被埋葬之前都被打碎并烧毁了,可知,此处是在解释“这些坑是用于祭祀目的的”的原因。故选D。
26.— May I go and play with Dick this afternoon, Mum?—No, you can't go out _____ your work is being done.A.before B.until C.as D.the moment 全面解析:——妈妈今天下午我可以和Dick出去玩吗?——不行。因为你正在做作业,所以你不能出去。before“在......以前”;until“直到”;as“因为,当......的时候”;the moment“一.......就......”。本题特别容易错选B项,但是横线后面的句子的意思不相符。后面的句子表示的是原因。故选C。
27.Jenny was very sad over the loss of the photos she had shot in Canada, this was a memory she especially treasured. lemon tree A.as B.if C.when D.where 全面解析:珍妮对失去她在加拿大拍摄的照片感到非常悲伤,因为这是她特别珍视的记忆。as引导原因状语从句,表示“由于”;if“如果”;when“当……时候”;where“在哪里”。根据句意,前后文是因果关系,故选A。
28.He can't attend the party __________ he is up to his academic paper. A.while B.when C.because D.unless 全面解析:他不能参加派对因为他在写学术论文。A. while“当......时;在......期间”引导时间状语从句;B. when“当......时”,引导时间状语从句;C. because“因为,引导原因状语从句”;D. unless“除非,如果不”,引导条件状语从句。结合句意,可知空白处之后的内容为他不能来参加聚会的原因,故选C。
29._______the story is in the newspaper, everyone believes it is true. A.Unless B.For C.Since D.Until 全面解析:既然这个故事登在报纸上,每个人都会相信它是真的。A. Unless“除非”;B. For“因为”;C. Since “既然”;D. Until“知道”。分析句子可知,空处缺少从属连词,由句意可知,主从句表示因果关系,所以用since。故选C。
30. you have been sitting in front of the computer for two hours, you'd better take a break. A.Even if B.Though C.Now that D.Unless 全面解析:既然你已经在电脑前坐了两个小时了,你最好休息一下。A. Even if ”即使“;B. Though”尽管“;C. Now that”既然“;D. Unless”除非“。此处是now that引导的原因状语从句,故选C。
31.How come Meng Wanzhou, Huawei CFO, was arrested in Canada, she didn't violate any Canadian law? A.until B.unless C.when D.before 全面解析:既然华为首席财务官孟万洲没有违反加拿大法律,为什么会在加拿大被捕?此处是when引导的原因状语从句,意为“既然”,故选C。
32.Human beings are different from animals ________ they can use language as a tool to communicate. A.in which B.in that C.for that D.for which 全面解析:人类不同于动物,因为人类可以把语言作为交流的工具。此处为原因状语从句,表示“因为”结合选项应用in that,作为从属连词。故选B。
33.It's much easier to make friends ________ you have similar interests. A.unless B.when C.even though D.so that 全面解析:既然你们有相似的爱好,那成为朋友就更容易了。unless”除非, 如果不“;when”既然,考虑到,当……时“;even though”即使,虽然“;so that”以便,所以“。故选B。
34.I really enjoy listening to music ________ it helps me relax and takes my mind away from other cares of the day. A.because B.before C.unless D.until 全面解析:我非常喜欢听音乐,因为它能让我放松,使我不去想其它的事情。前后是因果关系,故选A。
35.The roof fell ____________he had time to dash into the room to save his baby.A.before B.after C.until D.unless 全面解析:在他还没来得及冲进房间去救他的孩子之前,屋顶就掉了下来。before 前的动词如果是瞬间动词,before翻译成“尚未,还没来得及”,此处引导条件状语从句,故选A。
36.________ the examination score is the only criterion for his academic performance, a student is driven to memorize mechanically rather than ________ creatively. A.Though; to think B.As; thinkingC.Though; thinking D.As; to think 全面解析:由于考试分数是衡量学习成绩的唯一标准,学生被迫机械地记忆,而不是创造性地思考。根据句意可知“考试分数是衡量学习成绩的唯一标准”是“学生被迫机械地记忆,而不是创造性地思考”的原因,应该用as引导原因状语从句;根据is driven to memorize可知rather than连接两个并列的不定式,作主语补足语。故选D。 37.________ Mr. Smith is well again, he can go on with his work. A.Now and then B.Now that C.The other day D.Now just 全面解析:既然史密斯先生恢复健康了,那么他可以继续工作了。A. Now and then“偶尔、有时”;B. Now that“既然”;C. The other day“前几天,几天前”;D. Now just“现在只是”。根据故选B。
38._____ oil is an irreplaceable natural resource, we must do whatever we can in order to conserve it before we find alternative energy sources. A.Considering that B.Even thoughC.Provided that D.Suppose that 全面解析:考虑到石油是一种不可替代的自然资源,在我们找到替代能源之前,我们必须尽我们所能来保护它。分析句意可知,本句为Considering that“考虑到”引导的原因状语从句。故选A。
39._____, there seemed little hope that the adventurer would find his way through the vast rainforest. A.Confused by the map B.As he had been confused by the mapC.Having been confused by the map D.He had been confused by the map 全面解析:由于这张地图把他弄糊涂了,这位冒险家找到穿越这片广袤雨林的路的希望似乎不大。第二句和第一句的主语不一致,所以前一句不能使用非谓语动词,两句之间存在因果关系,需要用连词as连接,故选B。
40.The old man asked Lucy to move to another chair __________he wanted to sit next to his wife. A.although B.unless C.because D.if 全面解析:老人要露西挪到另一把椅子上,因为他想坐在妻子旁边。A. although“尽管”;B. unless“除非”;C. because“ 因为”;D. if“如果”。前后句子为因果关系。故选C。
41.College students should actively participate in social practice, which will lead to the acquisition of more knowledge and skills, what they learn from books is limited. A.even if B.as long as C.as soon as D.now that 全面解析:大学生应积极参与社会实践,从而获得更多的知识和技能,因为他们从书本中学到的是有限的。even if“即使”;as long as“只要”;as soon as“一……就……”;now that“既然,由于”。故选D。
42.Hydrogen is the fundamental element of the universe it provides the building blocks from which the other elements are produced. A.in that B.but that C.so that D.provided that 全面解析:氢是宇宙的基本元素因为它为其他元素的产生提供了基础。in that“因为”,引导原因状语从句;故选A。
43.________ you have seen he is poor, you should understand why he has to take up two part-time jobs. A.As long as B.Unless C.Now that D.While 全面解析:既然你已经看到他很穷,你就应该明白他为什么要做两份兼职工作。A. As long as“只要”;B. Unless“除非”;C. Now that“既然”;D. While“然而”。结合前后两句的句意可知,这是个原因状语从句,结合四个选项可知,要用now that引导,故选C。
44.We can talk with friends on the Internet it's easier and cheaper.A.though B.as C.or D.but 全面解析:我们可以在网上与朋友们聊天是因为它既容易又便宜。A 虽然,引导让步状语从句,B 因为,引导原因状语从句,C 或者,表选择,D 但是,表转折;前后为因果关系,因此用as,故选B。
45.Recycling can reduce carbon emissions, ______ producing new products from recycled objects generally saves energy. A.because B.as if C.although D.in case 全面解析:回收能减少碳排放,因为使用回收的材料生产新产品通常来说会节约能源。A. because “因为”;B.as if “好像”; C. although“尽管”;D.in case“以防”。由语意可知,后面一个分句是前面分句的原因,用回收的材料生产新产品节约能源是减少碳排放的原因。故选A。 46.______ the content of this letter can be confidential; security is an issue that you must address. A.Although B.Since C.Unless D.After 全面解析:因为这封信的内容是保密的,安全性是您必须解决的问题。A. Although“尽管”;B. Since“因为”;C. Unless“除非”;D. After“在……之后”。分析句子可知,前后句为从属关系,前句是后句的原因,因为信得内容是保密的,所以必须保证安全性,故用引导原因状语从句的从属连词。故选B。
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