1、必修一 Unit 5一 轮 复 习Despitearegard长难句理解China is widely known for its ancient civilisation which has continued all the way through intomodern times,despite the many ups and downs in its history.定语从句中国以其古老的文明而闻名，尽管历史上有许多起起伏伏，但它一直延续到现代。让步状语从句长难句理解There are many reasons why this has been possible,but one o
2、f the main factors has been the Chinese writing system.定语从句造成这种情况的原因有很多，但其中一个主要因素是汉语书写系统。并列连词长难句理解It dates back several thousand years to the use of longguanimal bones and shells on which symbols were carved by ancient Chinese people.定语从句它可以追溯到数千年前使用龙骨的时期动物的骨头和贝壳，古代中国人在它们上面雕刻着符号。on which1.which在限制性和
3、非限制性定语从句中作介词宾语时，该介词可提前至which前，此时，which不可省略（因为省了会造成句子混乱）She has the design(which)she is admired for by her colleague.=She has the design for which she is admired by her colleague.(which不可省)This carpet(which)you are walking on is no longer ours.=This carpet on which you are walking is no longer ours.(
4、which不可省)on which2.whom限制性和非限制性定语从句作介词宾语时，介词可提前至whom前，此时，whom不可省略；The boy whom I spoke to is a nice person.与我讲话的男孩子是个不错的人。=The boy to whom I spoke is a nice person.（whom不可省）The retailer,whom I purchased my laptop from,is an old man.那个零售商是个老人，他卖给我笔记本电脑。=The retailer,from whom I purchased my laptop,is
5、 an old man.（whom不可省）on which3.whose 对应先行词是事物时，whose+名词=the+名词+of whichHis death,whose cause is unknown,surprises us.他那不知原因的的死亡令我们惊讶。=His death,the cause of which is unknown,surprises us.on which4.关系副词可与介词+which转换I shall never forget the day when(on which)we first met.He came at a time when(at which
6、)we were badly in need of help.The school where(in/at which)they are working is not far.That isnt the hotel where(at which)she stayed when she was in London.He didnt give the reason why(for which)he came so early.The reason why(for which)your letter was returned is that I dont live there any more.on
7、 which5.One,some,any,none,all,both,several,many,most,neither,either等词、数词、分数或百分比与of whom或of which连用。He has five children,two of whom are abroad.We have three books,none of which is/are interesting.toconsultwhatworking长难句理解Over the years,the system developed into different forms,as it was a time when
8、people were divided geographically leading to many varieties of dialects and characters.原因状语从句这些年来，这个系统发展成了不同的形式，因为在这个时代，人们在地理上被分割，从而产生了许多不同的方言和文字。定语从句现在分词做结果状语 as1、as.as的用法as.as意为和一样，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+adj./adv.+as。例如：(1)Your pen writes as smoothly as mine.(2)This film is as
9、interesting as that one.其否定式为not as/so+adj./adv.+as。This dictionary is not as/so useful as you think.若有修饰成分，如twice,three times,half,a quarter等，则须置于第一个as之前。Your bag is twice as expensive as mine.as2、as引导时间状语从句此时，as译作“当时候”，可以放在主句之前，也可以放在主句之后。He smiled as he said goodbye to me.他向我道别时微笑了一下。As she was wa
10、lking in the park,she heard a girl singing.她在公园里散步时，听到一位女孩在唱歌。I sang an English song as I went along the river.我边沿河边走边唱英文歌。as3、as用作连词引导原因状语从句as，because，since都可以表示因果关系，连接原因状语从句，含义是因为，由于，但它们有区别：because表示的语气最强;as一般放在句首，语气较弱，较口语化;since常常用在书面语中，表示多为对方已知的、或稍加分析便可得知的原因，有时可译作既然。(1)He will succeed because he
11、 is in earnest.他一定会成功，因为他很认真。(2)Since you are so sure of it he”ll believe you.既然你对此如此有把握，他会相信你的。as4、as引导让步状语从句：此时，as译作“尽管”。当as引导让步状语从句时，不把as放在从句的开头，而是将充当从句主要成分的形容词、副词、分词、动词原形或不加冠词的单数可数名词置于前面。（1）将表语放在句首，再将as放在表语和主语之间。Child as he is,he knows quite a lot of things.（2）将状语放在句首，再将as放在状语（副词）和主语之间。Much as s
12、he likes,she will not take it.（3）将主动词放在句首，再将as放在主动词和主语之间。Try as he did,he didnt succeed.现在分词做结果状语There is mud and water everywhere,making it difficult to travel from place to place.making it difficult to travel from place to place 是结果状语。现在分词作结果状语表示一种必然性（自然结果）。He comes home late every evening,making
13、his wife very angry.他每天回来得很晚，这是他的妻子很生气。Mary failed all her exams,making both her parents very angry.玛丽未能通过一门考试，这是她父母非常生气。长难句理解 The high regard for the Chinese writing system canbe seen in the development of Chinese characters as an art form,known as Chinese calligraphy,which has become an important part of Chinese culture.过去分词作后置定语对汉字书写系统的高度重视可以从汉字的发展中看出来，汉字作为一种被称为中国书法的艺术形式，它已经成为中国文化的重要组成部分。定语从句is based on hard workto欣赏
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