1、1 (每日一练每日一练)初三英语原因状语从句考点突破初三英语原因状语从句考点突破 单选题 1、He was very sleepy in class _ he stayed up too late doing his homework.AifBwhenCbecauseDthough 答案:C 解析:句意:他上课打瞌睡,因为做作业睡得太晚。考查从属连词。A.if 如果;B.when 当时;C.because 因为;D.though 尽管,这里的主从句是因果关系,后句的“熬夜写作业”是前句的“上课打瞌睡”的原因。故选 C。小提示:从属连词的辨析是初中常考的语法点,要想做对这些题目,需要注意以下两点
2、。第一,要熟知每个从属连词的意思。第二,在做题的时候需要结合前后句的逻辑关系来选择,有的时候还要结合时态,比如 if 引导的条件状语从句,主将从现的时态要求。2、Tom didnt go to school he was ill.AsoBuntilCbecauseDbut 答案:C 解析:句意:汤姆没去上学因为他生病了。A.so 因此;B.until 直到;C.because 因为;D.but 但是。后面的句子“he was ill 他生病了”是说明“Tom didnt go 2 to school 汤姆没去上学”的原因。故选 C。3、John has decided not to eat t
3、oo much _ he always has a stomachache.AifBbecauseCwhenDuntil 答案: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。4、They are going to Fujian they think its a beautiful place.AsoBbecauseCthenDbut 答案: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;bec
4、ause 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。5、_ she is ill,_ she has to stay at home.ABecause;butBBecause;soCBecause;/D/;but 答案:C 解析:句意:因为她病了,她不得不待在家里。考查连词辨析。because 因为,so 因此,两者不可连用;but 但是,表示转折。根据句意可知,“she is ill”是她不得不待在家里的原因,前因后果,第一空应用 because。故选 C。3 6、We shou
5、ld care more about our health _ good health is the first step towards success.AsoBbecauseCbutDif 答案: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
6、因状语从句,故选 B。7、Id like to walk to school every day _walking is good for health.AbutBsoCbecauseDor 答案:C 解析:句意:我想每天步行去上学,因为散步对我们的健康有好处。but 但是;so 因此,所以;because 因为;or 或者,否则。根据句意可知,空后 walking is good for health 解释前面 Id like to walk to school 的原因,故用 because 引导原因状语从句,选 C。8、This term,_ I am really busy,_ I do
7、nt do any sports.Abecause;soBso;becauseCbecause;/Dso;/答案:C 解析:句意:这个学期,因为我真的很忙,所以我不做运动。考查连词辨析。because 因为;so 因此。“我真的很忙”是“我不做运动”的原因,because 引导原因状语从句,不能与 so 一起连用,故选 C。4 9、-Is Li Lei at school today?-No,he is at home _ he has a bad cold.AuntilBifCbecauseDso 答案:C 解析:句意:李磊今天在学校吗?不,他在家因为他感冒了。A.until 直到;B.if
8、 如果;C.because 因为;D.so因此。根据下文 he has a bad cold 可知这里是表示原因。根据题意,故选 C。10、At present,it is not easy for some students to get up early _ they have too much homework to finish.AunlessBsinceCas a resultDalthough 答案:B 解析: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。