人教版初三英语原因状语从句考点大全笔记.pdf

1 (每日一练每日一练)人教版初三英语原因状语从句考点大全笔记人教版初三英语原因状语从句考点大全笔记 单选题 1、Mary likes giraffes _ theyre kind of interesting.AsoBbutCbecause 答案：C 解析：句意：玛丽喜欢长颈鹿，因为它们有点有趣。考查连词辨析。so 因此；but 但是；because 因为。根据“theyre kind of interesting”是玛丽喜欢长颈鹿的原因，可知用 because 引导原因状语从句。故选 C。2、Could you show the way to the station to me may be five minutes walk from here?No problem.But its silly to take a taxi you can easily walk to the station.A/;ifBwhich;sinceCthat;whenDwho;if 答案：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。3、_ weve made the promise,lets keep to it and not give up easily.2 AWhetherBSinceCThoughDUnless 答案：B 解析：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“weve made the promise,lets 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。4、Dannys father is always very busy _ he is a manager.AalthoughBifCbecauseDbecause of 答案：C 解析：句意：Danny 的爸爸总是很忙，因为他是一个经理。考查从属连词。although 尽管，虽然；if 如果；because，because of 因为，但是 because 后面加句子，because of 后面加短语。He is a manager.他是一个经理，这是一个句子，应该用 because，引导原因状语从句。故选 C。5、We were at a disadvantage we did not have a very good knowledge of the language the others were using.AbecauseBalthoughCuntilDunless 答案：A 解析：句意：我们处于劣势，因为我们对其他人使用的语言不太了解。考查连词辨析。because 因为；although 虽然；until 直到；unless 除非，根据所给空前面的 We were at a disadvantage 和后面的 we did not have a very good knowledge of the language the others were using 可知，是因果关系，故选 A。3 小提示：because 和 because of 意为“因为”，区别如下：because 后面接句子。例如：He is late for school because he gets up late.他上学迟到了因为他起晚了。because of 后面接名词或名词短语。例如：The sports meeting is put off because of the heavy rain.因为大雨，运动会被推迟了。6、The local food may taste a bit strange.Well,_ weve here,why not give it a try?AthoughBunlessCsince 答案：C 解析：句意：当地的食物可能尝起来有一点奇怪。好吧，既然我们来到这里，为什么不试一试呢？考查连词辨析。though 虽然；unless 除非；since 既然。答者提议尝试当地的食物，由此推断，空格处用“since”表原因，意为“既然”。故选 C。7、I decided _ the thief（小偷）by myself _ it was exciting.Acatching;butBto catch;when Cto catch;becauseDcatching;till 答案：C 解析：句意：我决定一个人去抓小偷，因为那很刺激。考查非谓语动词和原因状语从句。根据短语“decide to do sth.（决定做某事）”可知，第一空应填动词不定式 to catch 作宾语，排除 A 和 D；根据语境可知，“我决定一个人去抓小偷”为结果，“那很刺激”为原因，前后半句为因果关系，并且横线后为原因，所以第二空应填 because 引导此原因状从。故选 C。4 8、I am really proud of my group _ were always discussing and sharing study secrets together.How important the group work is!AbecauseBthoughCunless 答案：A 解析：句意：我非常为我的组感到骄傲，我们通常一起讨论和分享学习的秘密，团队合作是多么重要！考查连词辨析、because 原因状语从句。because 因为，引导原因状语从句；though 尽管，引导让步状语从句；unless 除非，引导条件状语从句；“为我的组感到骄傲”的原因是“我们通常一起讨论和分享学习的秘密”，从句表示主句动作发生的原因，故选 A。小提示：解答本题时要先明确这 3 个连词的不同的词义和用法；because 因为，引导原因状语从句；though 尽管，引导让步状语从句；unless 除非，引导条件状语从句；再根据 2 个单句之间的关系是表原因，确定用连词 because。9、Why isnt he hungry now?_ he has had a lot of bread.ABecause ofBBecauseCSoDSo that 答案：B 解析：句意：为什么现在他不饿了？因为他已经吃了很多面包。考查连词辨析。because of 因为，后接名词或名词短语；because 因为，连词，可引导原因状语从句；so 因此；所以，表示因果的并列连词；so that 如此；以便，引导状语从句。根据“Why isnt he hungry now?”，可知询问原因，且“he has had a lot of bread”为句子，所以用连词 Because 作答。故选 B。10、Tom had to wait for his wife to come back home _ he had left his key in the office.AbecauseBunlessCuntil 5 答案：A 解析：句意：汤姆把钥匙忘在办公室里，只好等他妻子回来。考查连词。because 因为；unless 除非；until 直到为止。句子“he had left his key in the office.”是“Tom had to wait for his wife to come back home”的原因，因此用 because 引导。故选 A。11、_ yellow is the colour of wisdom,it is often used in exams by students.AWhileBOnceCSinceDThough 答案：C 解析：句意：因为黄色是智慧的颜色，它经常被学生用在考试中。While 当时候，once 一旦，since 因为，由于；though 尽管。结合句意，黄色是智慧的颜色，这是学生考试中使用黄色的原因，故用连词 since。故选 C。12、John missed the morning flight _ he forgot to set the alarm and he got up very late.AthoughBwhenCifDbecause 答案：D 解析：句意：约翰错过了早上的航班，因为他忘记设闹钟，而且起得很晚。考查从属连词。though 尽管，表让步；when 当的时候，表时间；if 如果，表条件；because 因为，表原因。根据题干意“John missed the morning flighthe forgot to set the alarm and he got up very late”，可知前后是因果关系，需用 because 引导原因状语从句，故选 D。