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1、單擊此處編輯母版標(biāo)題樣式,單擊此處編輯母版文本樣式,第二級,第三級,第四級,第五級,2018/4/19,#,原因狀語從句及,because of,的用法,原因狀語從句及because of的用法,狀語從句主要用來修飾主句或主句的謂語。,狀語從句,時(shí)間狀語從句,地點(diǎn)狀語從句,原因狀語從句,目的狀語從句,結(jié)果狀語從句,條件狀語從句,讓步狀語從句,比較和方式狀語從句,Lead-in,狀語從句主要用來修飾主句或主句的謂語。狀語從句時(shí)間狀語從句地,Lead-in,Why was the teacher angry?,Because the girl was late for class.,Lead-in

2、Why was the teacher ang,Lead-in,The teacher was angry,because,the girl was late for class.,原因狀語從句,主句,Lead-inThe teacher was angry b,Presentation,引導(dǎo)原因狀語從句的從屬連詞主要的,有,because,as,since,。,原因狀語從句是用來說明引起,主句這個(gè)結(jié)果的原因的從句。,Presentation引導(dǎo)原因狀語從句的從屬連詞主要的原因,Presentation,指出句子的主句和原因狀語從句。,I refuse to believe you becau

3、se no one else,saw these aliens.,I refuse to believe you as no one else saw,these aliens.,I refuse to believe you since no one else saw,these aliens.,主句,原因狀語從句,Presentation指出句子的主句和原因狀語從句。I r,Presentation,Because,As,Since,no one else saw these aliens,I,refuse to believe you.,觀察一下句子，你們能得出什么結(jié)論？,結(jié)論：,當(dāng)我們

4、把從句放在句子開頭時(shí)，,經(jīng)常用逗號把從句和主句隔開。,PresentationBecauseno one else,Presentation,知識拓展,because,since,as,辨析,because,語勢最強(qiáng)，用來表示說話人以為聽話,人不知道的原因，回答,why,提出的問題。當(dāng)原,因是顯而易見的或已為人們所知，就用,as,或,since,。,Presentation知識拓展because,sinc,Presentation,I didnt go because I was afraid.,因?yàn)槲液ε滤晕覜]有去。,例句,Since/As the weather is too bad,w

5、e have to,put off our journey.,由于天氣太差，我們不得不推遲我們的旅行。,PresentationI didnt go becaus,Practice,Wed better hurry _ it is getting dark.,A.and B.but C.as D.unless,解析：句意：我們最好快點(diǎn)，因?yàn)樘炜旌诹恕?A.and,并且；,B.but,但是；,C.as,由于，因?yàn)椋?D.unless,除非。結(jié)合句意，故選,C,。,C,PracticeWed better hurry _,Practice,-He was late again today.Do y

6、ou know why?,-_ he stayed up watching football,match too late last night.,A.Since B.As C.Because D.And,C,解析：,because,用來回答,why,的提問，表示直接,的原因。根據(jù)上句的提問“,Do you know why”,故選,C,。,Practice-He was late again to,Practice,Police officers questions,1.Why was Tina sure that something landed in,the forest near th

7、e hills?,2.Why did you and Tina hide behind some,bushes?,3.Why did you run away?,4.Why did your father refuse to believe you?,Match the questions with the answers.,PracticePolice officers quest,Practice,We heard some voices speaking a strange,language.,B.She heard a loud noise last night.,C.No one e

8、lse saw these aliens.,D.An alien saw us and made a terrible noise.,Toms answers.,Answer:,1.B 2.D 3.A 4.C,PracticeWe heard some voices s,Practice,Tina was sure that something landed in the forest,near the hills because she heard a loud noise last,night.,Use the questions and answers to complete the p

9、olice officers notes with as,since or because.,Tom and Tina hide behind some bushes as An,alien saw,them and made a terrible noise.,1.because,2.as,Practice Tina was sure tha,Practice,Tom run away because they heard some voices,speaking a strange language.,3.because,4.since,Toms father refuse to beli

10、eve him since no one else saw these aliens.,PracticeTom run away because t,Presentation,Find out the rules.,Im unhappy because of,your marks in the exam,.,They went to the forest because of,their curiosity,.,Tina woke up at midnight because of,a loud noise,.,She decided to explore the forest because

11、 of,it,.,Because of,后可以加名詞或者名詞短語,或者人稱代詞的賓格形式。,Rules:,PresentationFind out the rules,Presentation,because,引導(dǎo)的原因狀語從句，而,because of,后加名詞,或者代詞，或者名詞短語。,because,從句與,because of,短語可以相互轉(zhuǎn)換。,because,和,because of,He cant come because he is ill.,He cant come because of his illness.,他因病不能來。,Presentationbecause引導(dǎo)的原

12、因狀語從句，而,Presentation,because,和,so,在漢語中因?yàn)樗砸话闱闆r是連用的，,但是英語中,because,和,so,一般不能連用。,因?yàn)橄掠?，所以我們呆在家里?正：,Because it was raining,we stayed at home.,It was raining so we stayed at home.,誤：,Because it was raining,so we stayed at home.,Presentationbecause 和so在漢語中因?yàn)?Practice,練習(xí)鞏固,句子改錯(cuò)（畫出句子中的錯(cuò)誤部分，并改正）,Because he

13、got up late this morning so he missed,the early bus.,2.He is very happy because his good marks in the,exam.,去掉,because,改為,because of,Practice練習(xí)鞏固句子改錯(cuò)（畫出句子中的錯(cuò)誤部分，并改,Practice,直擊中考,【2014,.,深圳,】,Why didnt you go to school yesterday?,_,my mother was in hospital and,I had to take care of her.,A.Then B.Bec

14、auseC.If,B,試題分析：,Then,那么，然后；,Because,因?yàn)椋?If,是否，如果。句意：昨天你為什么沒有去上學(xué)？,因?yàn)槲业哪赣H生病住院了，我不得不照顧她。結(jié)合語境可知選,B,。,Practice直擊中考【2014.深圳】B試題分析：Th,Practice,直擊中考,【,2011.,揚(yáng)州,】,He had to retire(,退休,)early,poor health,.,as,a result,B.because,C.so,D,.because of,試題分析：,as a result,因此，結(jié)果是；,because,因?yàn)?，接從句?so,因此；,because of,因?yàn)?/p>

15、，接名詞性短語。句意：因?yàn)樯眢w不適，他不得不提前退休。結(jié)合語境可知選,D,。,D,Practice直擊中考【2011.揚(yáng)州】He had to,Practice,直擊中考,【,2013.,蘇州,】,Kelly Clarkson is so popular among,young people _ her beautiful voice.,because B.because of,C.instead D.instead of,B,試題分析,:,句意：凱力,.,克拉克森因其動聽的歌喉而深受年輕人喜愛。,because,因?yàn)椋ê蠼訌木洌?because of,因?yàn)椋ê蠼佣陶Z），,instead,反

16、而，,instead of,而不是,。根據(jù)語境可知其深受年輕人歡迎是因?yàn)槠鋭勇牭母韬?，故選,B.,Practice直擊中考【2013.蘇州】Kelly Cla,Practice,直擊中考,【2012.,杭州,】-,Did you call Sara back?,-I didnt need to,_ well have a meeting together tonight.,A.though,B,.unless,C.because D.if,C,試題分析：,Though,雖然，盡管；,unless,除非；,because,因?yàn)椋?if,是否，如果。句意：,-,你喊薩拉回來了嗎？,我不必。因?yàn)槲覀兘裢硪黄鹩袀€(gè)會議。故選,C,。,Practice直擊中考【2012.杭州】-Did y,Homework,Write sentences about the story on page 99 by,Using because of.,HomeworkWrite sentences about,【語法】M4U7-原因狀語從句及because-of-的用法課件,