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1、1 (每日一练)初三英语原因状语从句基础知识点归纳总结 单选题 1、Mary came to school late this morning _ she got up late.AsoBbutCorDbecause 答案:D 解析:句意:玛丽今天早上上学迟到了,因为她起晚了。考查连词辨析。so 所以;but 但是;or 或者;because 因为。根据“Mary came to school late this morning.she got up late.”可知句子前后是因果关系,后句是前句的原因,应用 because,故选 D。2、David was absent yesterday
2、_ he had a cold.AifBalthoughCbecauseDbecause of 答案:C 解析:句意:David 昨天缺席,因为他感冒了。A.if 如果,引导条件状语从句;B.although 尽管,引导让步状语从句;C.because 因为,引导原因状语从句;D.because of 因为,后接名词、代词或短语。前句“David was absent yesterday”(David 昨天缺席)与后句“he had a cold”(他感冒了)是因果关系,故用 because。故选 C。3、Will you go anywhere on Saturday,Daming?I wi
3、ll stay at home _ the weather report says that it will rain heavily.2 AandBbutCbecauseDso 答案:C 解析:句意:大明,星期六你去哪儿?我将待在家里,因为天气预报说会下大雨。考查连词辨析。and 和;but 但是;because 因为;so 因此。根据“I will stay at homethe weather report says that it will rain heavily.”可知,上文“我待在家里”和下文“天气预报说会下大雨”之间是因果关系,后者表原因,故用 because。故选 C。4、I
4、m going to stay at home_its raining outside.AbecauseBsoCbutDand 答案:A 解析:句意:我打算呆在家里,因为外面在下雨。考查连词。because 因为(接理由);so 所以(接结果);but 但是;and 和;根据“its raining outside.”可知外面在下雨,可推测出此处是原因,所以用“because”,故选 A。5、The family have to stay at the hotel_it is raining hard.AandBbutCbecauseDor 答案:C 解析:句意:因为雨下得很大,这家人不得不呆
5、在旅馆里。考查连词辨析。and 和;but 但是;because 因为;or 或者。空后“雨下得很大”是空前“不得不呆在旅馆”的原因,所以此空填 because 引导原因状语从句,故选 C。6、We like making sandcastles on the beach _ its interesting.3 AwhenBbecauseChowDwhat 答案:B 解析:句意:我们喜欢在海滩上做沙堡,因为它很有趣。本题考查并列从属连词。A.什么时候;B.因为;C.怎么;D.什么。根据句意可知,主句和从句是因果关系,此空应填 because,故选 B。7、_ he is very busy,_
6、 he cant come.Aso;becauseBBecause;soCBecause;/答案:C 解析:句意:因为他很忙,所以他不能来。考查连词辨析。so 所以,表结果;because 因为,表原因;二者都表因果关系,但不可连用。根据句意结构,可知选 C。8、I like geography,its useful for me to have a trip around the world.AbutBthenCbecauseDso 答案:C 解析:句意:我喜欢地理,因为它对我环游世界来说是有用的。考查连词。A.but 但是;B.then 然后;C.because 因为;D.so 因此。根据
7、句意可知,前后半句是因果关系,地理有用是我喜欢它的原因,故选 C 小提示:it is+形容词+for 或 of 或 to do 的区别 Its+adj.+(of/for)sb to do sth.译作“(某人)做某事是的”.It 是形式主语,不定式结构是真正主语.of/for 后面的 sb4 是不定式的逻辑主语.当形容词是可修饰人的形容词,即 sb 和 adj.有主系表关系时,sb 前用 of.如 Its clever of you to answer the question so quickly./Its kind of you to help me a lot.这样的形容词有:kind,
8、nice,rude,clever,silly,foolish 等.当形容词是不可以修饰人的形容词,即 sb 和 adj.没有主系表关系时,sb 前用 for.如 Its easy for her to clean the window by herself./Its important for us to learn English well.这样的形容词有:easy,hard,difficult,important,necessary,dangerous 等.9、Joe was ill in bed _ he had a high fever yesterday.AsoBbecauseCif
9、Dbut 答案:B 解析:句意:Joe 昨天发高烧,所以卧病在床。考查连词辨析。so 所以;because 因为;if 如果;but 但是。“Joe was ill in bed”与“he had a high fever yesterday”是因果关系,后是因,用 because 引导原因状语从句,故选 B。10、She didnt send the e-mail yesterday _ it was too late.AifBafterCbeforeDbecause 答案:D 解析:5 句意:她昨天没有发电子邮件,因为太晚了。考查连词辨析。if 如果;after 在之后;before 在之前;because 因为。根据“She didnt send the e-mail yesterday.it was too late.”可知,前后句子是因果关系,应用连词 because 连接。故选 D。