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1、(每日一练)人教版初三英语原因状语从句知识点题库And it opened up my mind!单选题1、He works so hard he wants to make more money for his family.A . butB . soC . becauseD . if答案:C解析:句意:他工作这么努力是因为他想为他的家庭赚更多的钱。考查连词辨析。but但是,表示转折关系;s。所以,因此,表示因果关系,引出结果;because因为,表因果 关系,引出原因;if 如果。根据 He works so hard,以及 he wants to make more money for
2、his family,可知,他 工作努力的原因是他想为他的家庭赚更多的钱,所以用because连接,故答案选C。2、They will not finish the work on time they work together.A . whileB . unlessC . afterD . because答案:B解析:句意:除非他们一起工作,不然他们不会准时完成工作。考查从属连词辨析。while当时候;unless除非;after在之后;because因为。根据They will not finish the work on time及uthey work together.可知,他们不会准
3、时完成工作和他们一起工作,表条件,用 unless除非;除非他们一起工作,不然他们不会准时完成工作,故选B。3、We didn t enjoy the picnic there was a sudden rain.A . ifB . unlessC . becauseD . until答案:C解析:句意:我们不喜欢这次野餐因为突然下雨了。考查连词。if如果,引导条件状语从句;unless除非,如果不;because因为,引导原因状语从句;until直到时候,弓I导时间状语从句。根据句子的逻辑可知,空后解释了不喜欢这次野餐的原因。故选C。4、People in the world should
4、work together they are leaves of the same tree.A . butB . asC . or答案:B解析:句意:全世界的人们应该一起协作因为他们都是同一棵大树上的树叶。考查连词 o but 但是;as 因为;or 否则。“they are leaves of the same tree解释should work together的 原因,用表zf原因的连词as。故选Bo5、 I cant tell whether she is old or young,I have never seen her.A . butB . forC . orD . so答案:
5、B解析:句意:我分不清她是老是年轻。因为我从未见过她。考查连词辨析。but但是;for因为;or否则,或者;so所以。根据I can5 t tell whether she is old oryoung, .I have never seen her.” 可知,这里填 for,表示原因。故选 Bo6、Simon didn t finish his homework yesterday he had a headache.A . whenB . soC . ifD . because答案:D解析:句意:西蒙昨天没有完成作业,因为他头痛。A. when当时;B. so所以;C. if如果;是否;D
6、. because因为。根据he had a headache.是西蒙没有完成作 业的原因,故选D。7、He likes books a lot,he thinks if s a way to open up his eyes.A . read; soB . reading; becauseC . read; becauseD . reading; so答案:B解析:句意:他非常喜欢读书,因为他认为这是开阔眼界的一种方式。考查非谓语动词以及连词辨析。like doing sth “喜欢做某事”,排除A和C选项。because因为;so因此。“阅读是开阔眼界的一种方式”是“喜欢读书”的原因,用b
7、ecause引导原因状语从句,故选B。8、The sky is much bluer we have taken action to protect the environment.A . becauseB . beforeC . untilD . unless答案:A解析:句意:天空更蓝了,因为我们已经采取行动保护环境。A. because因为;B. before在之前;C. until直到;D. unless除非。根据下文we have taken action to protect the environment,可知这里是表示原因。根据题意,故选 Ao9、Uncle Li is afr
8、aid that the skill of sugar paintings will be lost in the future few people make sugarpaintings by hand.A . untilB . soC . althoughD . because答案:D解析:句意:李大叔担心以后糖画的技艺会丢失,因为很少有人用手工做糖画。考查连词。until直到;so因此;although虽然;because因为;空格前后句之间是因果关系,属于“前果后因” 结构,此处应用because引导原因状语从句,故选D。10、We all like Jenny she is kin
9、d and helpful.A . andB . becauseC . butD . or答案:B解析:句意:我们都喜欢Jenny,因为她很善良,乐于助人。考查连词辨析。and和;because因为;but但是;or否则,或者。“她很善良且乐于助人”是“我们都喜欢 她”的原因,用because引导原因状语从句。故选B。11、- Why were you late for school this morning?-I was ill, and had to see a doctor first.A . AsB . SinceC . BecauseD . For答案:C解析:句意:你今天早上为什么
10、上学迟到?因为我病了,必须先去看医生。4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。12、Samuel Han likes his job as a doctor he likes to make sick people better.A . althoughB . becauseC . butD . so答案:B解析:句意:塞缪尔汉喜欢他的医生工作,因为他喜欢让病人更健康。考查连词辨析。although 虽然、即使”,引导让步状语从句。because “因为”,引导原因状语从句; but “但是”,表转折;so “因此”,表因果;“他喜欢让病人更健康”是“他喜欢医生这个工作”的原因, 从句表示主句动作发生的原因,故选B。