牛津译林版英语9上Unit5grammar省公共课一等奖全国赛课获奖课件.pptx

第1页1.He loves the sounds of the rushing water and the blowing wind _,to him,the best music comes from nature.2._ he had no musical instruments then,he made music with common objects like stones and paper.3._ he likes the sounds of nature,Tan uses them a lot in his music.go Ready?becauseSinceAs第2页I like him because his music makes me feel relaxed.I like Tan Duns music because he uses the sounds of nature a lot.I like Water best because it is very special.回答回答 because why 引导疑问句引导疑问句.使用使用 because 来引导原因状语从句来引导原因状语从句.Grammar A:When do we use“because”to give reasons?第3页Look and answer:A:Why are you wearing a raincoat?B:Because its going to rain.第4页A:Why does Mike go out?B:Because he wants to play basketball.第5页A:Why does the boy eat the cake?B:Because he is hungry.I think.第6页A:Why do they turn on the fan?B:Because it is too hot.第7页_ her daughter hadnt come back,_ she looked worried.A.Because;/B.Because;soA.C.Though;but D.Thought;/because 引导原因状语从句不能和引导原因状语从句不能和so连用连用.第8页 Daniel has more questions about Tan Dun.He searched the Internet and made some notes.Look at his notes and answer his questions.Use because to introduce the reasons.第9页1.Why was Tan Dun chosen to write music for the Beijing Olympics?_2.Why does Tan like the sounds of nature?_ _Because he is a world-famous composer.Because he thinks the best music comes from nature.第10页3.Why is Tan able to build a bridge between the East and the West?_ _4.Why do people think highly of Tans music?_ _Because he has successfully brought Chinese and Western music together.Because he has created a new type of musicmusic without boundaries.第11页B.Giving reasons with since and as1.Since everyone is here,lets start2.Since so,I have nothing to say.3.Since you are wrong,you should say sorry.1.since侧重主句，意思是侧重主句，意思是“既然；因为；因既然；因为；因为为”，表示，表示已知、显然理由已知、显然理由since 比比as语气语气稍强，且比稍强，且比as略微正式，它们引导从句通略微正式，它们引导从句通常放在主句之前，有时也放在主句之后。常放在主句之前，有时也放在主句之后。不表示直接原因。不表示直接原因。Since可用于省略句，而可用于省略句，而其它连词不行。（见例其它连词不行。（见例2）第12页 and 用来表示原因用来表示原因.但所表原因是大家已经知道但所表原因是大家已经知道.他们语气比他们语气比because要弱。要弱。Working out the rulesSince as 第13页2.as 鉴于主从并重，从句说原因，主句说结果鉴于主从并重，从句说原因，主句说结果。1.As it is late,I must go.2.As you were not there,I left a message.as和和since使用方法大致相同，表示附带说明使用方法大致相同，表示附带说明“双方已知原因双方已知原因”或者理由不是很主要，但语气或者理由不是很主要，但语气更弱，没有更弱，没有since正式，常译为正式，常译为“因为，于因为，于”。比如：比如：As it is raining,youd better take a taxi.既然在下雨，既然在下雨，你最好乘出租汽车。你最好乘出租汽车。As you are tired,you had better rest.既然累了，既然累了，你最好休息一下。你最好休息一下。第14页和，与和，与一一样样Jack is as tall as his father.杰克和他父亲一样高。My pen is the same as yours.我钢笔与你一样。作作为为As a writer，he was famous.作为作家，他是很有名。当当We came in as he opened the door.他一开他一开门门，我，我们们就就进进来了。来了。因为，因为I must stop writing now,as I have rather a lot of work to do.我此刻必我此刻必须须停笔了，因停笔了，因为为我我还还有有许许多工作要做。多工作要做。按照按照Remember,you must do everything as I told you.记住，你必须按我说那样把每件事做好。一一就就As soon as I get to Beijing,Ill write to you.我一到北京，就我一到北京，就给给你写信。你写信。拓展拓展第15页3.for 因为，表明附加理由（解释或推因为，表明附加理由（解释或推断），为并列句，断），为并列句，for分句不放于句首分句不放于句首,语气最弱。语气最弱。1.He must be ill,for he is absent today。2.It must have rained last night,for the ground is wet.zxxk第16页4.for与与 because,as,since区分区分The fuel must have been finished,_ the engine stopped.A.since B.as C.because D.forbecause,as,since表示因果，语气较强；表示因果，语气较强；for引导是并列分句，它只是对前面分句引导是并列分句，它只是对前面分句加以解释，说明推断理由，而且后置加以解释，说明推断理由，而且后置。第17页because since as 使用方法区分使用方法区分 He introduced me because I was new.I was new,so he introduced me.Since you are going,I will go,too.As it is raining,youd better take a taxi.引导词引导词意义意义位置位置because因为因为强调未知原因后接表示直接原因句子多后置多后置so所以所以强调结果后接表示结果句子多后置多后置since既然既然表示已知显然理由后接表示知道原因句子常前置常前置as因为常前置常前置第18页An art festival B1 Daniel decided to play the violin at the art festival since/as he is good at it.1.Daniel decided to play the violin at the art festival.He is good at it._ _2.Kitty will dance at the song and dance show.She has to practise hard these days._ _3.Sandy will design the posters for the art festival.She can draw very well._ _ Since/As Kitty will dance at the song and dance show,she has to practise hard these days.Sandy will design the posters for the art festival since/as she can draw very well.第19页 Since/As some students love painting and taking photos,there will be a students art show.Since/As the art festival is open to all students and parents,everybody is welcome.第20页Language pointsoutofbreathbreath词性是名词，意思是呼吸。短语outofbreath意思是气喘吁吁，上气不接下气。breath动词形式时breathe，比如呼吸新鲜空气breathefreshair，呼吸沉重breatheheavily。lastlast在文中词性是动词，意思是连续。比如：这场雨会连续多久啊？Howlongwilltherainlast?第21页B2:Help Sandy complete her diary entry with because or since/as.第22页becauseSince/AsSince/Assince/as第23页becausebecauseSince/As第24页原因状语从句原因状语从句(Adverbial Clause of Cause)1.because since as for使用方法区分使用方法区分 He introduced me because I was new.Since you are going,I will go,too.As it is raining,youd better take a taxi.It must have rained last night,for the ground is wet.意义意义位置位置becausesinceasfor因为因为既然既然因为因为因为因为强调未知原因强调未知原因表示已知显然理由表示已知显然理由惯用于推断、惯用于推断、补充解释补充解释多后置多后置常前置常前置常前置常前置后置后置第25页中考链接中考链接()1.Tony never spends money on books_ he doesnt like reading.A.but B.because C.though D.until()2._ everyone is here,lets start our meeting.A.Since B.If C.But D.As()3._the girl is 22,she takes care of her mother and cooks meals every day.A.If B.But C.Though D.AsBAD第26页选择题：选择题：（）1.Why was he late for school?_ he got up too late.A、Because B、SinceC、AsD、For（）2.Is David at school today？No,he is at home _he has a bad cold.A、because B、sinceC、asD、for（）3.It rained last night,_ the ground is wet.A.becauseB.sinceC.asD.for（）4._ you are wrong,you should say sorry to him.A.As B.Since C.because D.For小试身手小试身手AADB第27页More exercises1.-Why are you late?-_(因为因为)I missed the early bus.2._(因为）因为）illness,my uncle didnt go to work.3._(因为）因为）the water here is polluted,even animals cannot drink it.4._(既然）既然）you are sick,you should have a good rest at home.BecauseBecause ofSinceAs第28页1.因为他太忙，所以他没去开会。因为他太忙，所以他没去开会。_ he was very busy,he didnt _ the meeting.2.既然大家都在这儿，咱们就开始讨论这个话题吧。既然大家都在这儿，咱们就开始讨论这个话题吧。_ everyone is here,lets _ _ the topic.3.因为我不擅长唱歌，我就没有参加歌舞演出。因为我不擅长唱歌，我就没有参加歌舞演出。_ I was not good at singing,I didnt take part in the song and dance show.4.既然既然Tom病了，他今天就不跟我们去钓鱼了。病了，他今天就不跟我们去钓鱼了。_ Tom is ill,he is not going_ with us today.BecauseattendSincestartdiscussingAsSincefishing译句子：译句子：第29页I:Choose the best key.1.-Why was he late for school?-_he got up too late.A.Because B.Since C.As D.For2.-Is David at school today?-No,he is at home _he has a bad cold.A.because B.since C.as D.for3._ everybody knows about it,I dont want to talk any more.A.For B.Even C.Since D.Because4.I like Han Mei_ she is kind and helpful.A.so B.since C.because D.asAACC第30页3.The museum is _ the people from Monday to Saturday,so you can come.A.close to B.closed to C.open to D.open for4.What a strong sandstorm!It will _ long.A.last B.end C.cover D.finish5._ he exercises every day,_ he is very healthy.A.Because;so B.Though;but C.Because;/D.Though;/第31页第32页