《as引导定语从句(1).ppt》由会员分享，可在线阅读，更多相关《as引导定语从句(1).ppt（19页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、as 引导定语从句引导定语从句 在限制性定语从句中，如果先行词被在限制性定语从句中，如果先行词被the same, such, as, so 等词修饰时，定语从等词修饰时，定语从句应由句应由as引导。引导。as作宾语不可省略。作宾语不可省略。 1)He is such a teacher as we respect. 2) I like the same book as you do. It is so big a stone as no man can lift. 在定语从句中，一般的从句关系代词是在定语从句中，一般的从句关系代词是whichwhich、whowho、whomwhom、tha
2、tthat、 whosewhose, , 其其代替主句中的人或物，在从句中做主语、宾语或代替主句中的人或物，在从句中做主语、宾语或定语。定语。一、一、asas引导限制性定语从句引导限制性定语从句主要结构有：主要结构有：the sameasthe sameasasasasassuchassuchassoassoas1.Itsthesamepersonaswewantedtofindyesterday.我们昨天要找的是同一个人。我们昨天要找的是同一个人。2.SuchgirlsasheknowsaregoodatEnglish.他所认识的女孩都擅长英语。他所认识的女孩都擅长英语。3.Doyouhav
3、esuchbooksaswelike?你有我们喜欢那种书吗？你有我们喜欢那种书吗？4.Shewillmarryashealthyamanasshecanfind.她将嫁给她能找到的任何一个有钱人。她将嫁给她能找到的任何一个有钱人。5.Thereissowarmahouseaswewanttolivein.这里有如此暖和的房子，我们都想住在里面。这里有如此暖和的房子，我们都想住在里面。6.Hehassodifficultaproblem,asnoneofuscansolve.他有如此难的一个问题，我们没有人能解决。他有如此难的一个问题，我们没有人能解决。二、引导非限制性定语从句二、引导非限制性定
4、语从句as引导非限制性定语从句，指代整个主句内容，从句引导非限制性定语从句，指代整个主句内容，从句可置于句首，句中或句尾可置于句首，句中或句尾1Aseveryoneknows,Chinaisabeautifulcountrywithalonghistory.每个人都知道，中国是一个有着悠久历史的美丽国家。每个人都知道，中国是一个有着悠久历史的美丽国家。2Theearth,asweknow,movesroundthesun.地球，我们都知道，围着太阳转。地球，我们都知道，围着太阳转。3Tomworkshardandiswillingtohelpothers,asweallknow.汤母工作努力，
5、并且乐于助人，这一点我们都知道。汤母工作努力，并且乐于助人，这一点我们都知道。正像经常发生的那样正像经常发生的那样as 和和 which 都可以指代主句中的一部分或都可以指代主句中的一部分或整个句子的内容，整个句子的内容，有时可以互换有时可以互换，但，但 as 引引导的非限制性定语从句位置比较灵活，可以导的非限制性定语从句位置比较灵活，可以位于位于主句前面，中间或后面，主句前面，中间或后面，一般用逗号与一般用逗号与主句隔开，而主句隔开，而 which 所引导的非限制性定语所引导的非限制性定语从句只能放在从句只能放在主句之后主句之后。 As 和和 Which 引导的非限制性定语从句的区别引导的非
6、限制性定语从句的区别 1.Asyouknow,TaiwanisaninseparatepartofChina.2.Taiwan,asyouknow,isaninseparatepartofChina.3.TaiwanisaninseparatepartofChina,asyouknow.4.TaiwanisaninseparatepartofChina,whichyouknow.位置不同位置不同As与与 which的区别的区别1.Theyremarried,asweexpected.2.Theyremarried,whichwehadntexpected3.Asoftenhappens,the
7、ywonthematchagain.4.Itrainedheavily,whichpreventedusgoingout. 意义不同意义不同 （as “正如，就像正如，就像” 表示符合人们的表示符合人们的认识和事物的习惯性等意义，即认识和事物的习惯性等意义，即从句与主句语从句与主句语义一致义一致。当。当从句与主句语义不一致从句与主句语义不一致时或从句与时或从句与主句之间是主句之间是因果关系因果关系时用时用which）asanybodycansee,asweallknow,aswehadexpected,asiswellknown,ashasbeensaidbefore,asoftenhappe
8、ns,asitis,asisnatural,asisthecase1.Asisknowntoeverybody,themoontravelsroundtheearth.2.Mike，asweexpected,attendedthemeeting.3.Shecameatonce,whichsurprisedmeverymuch.4.Thegirlheardaterriblenoise,whichbroughtherheartintohermouth.结构不同结构不同 ( as 常用于一些固定结构中，类似插入语，常用于一些固定结构中，类似插入语，而而which 常用于常用于which +谓语谓语+
9、宾语宾语/ 宾补结构。宾补结构。1. I still remember the days _ I worked with the farmers. I still remember the days _ I spent with the farmersA.which B. on which C. when D. what2. We were on the way _ it began to rain. I dont like the way _ you speak to your parents. A. when B. that C. how D. which whenwhichwhentha
10、t3. The teacher didnt know the reason _ she was absent yesterday.The teacher couldnt accept the reason _ she explained yesterday.A. how B. why C. that D. who4. Is this school _ you ever visited? Is this the school _ you ever studied? Is this the school in _ you ever studied? A. where B. which C. tha
11、t D. the onewhythatDAB5. This is _ he said at he meeting yesterday. This is all_ he said at the meeting yesterday. A. that B. which C. what D. how6. _ is reported in the newspapers, they have beaten all the other teams. _ is reported in the newspaper that they have beaten all the other teams._ is re
12、ported in the newspaper is that they have beaten all the other teams. A. It B. As C. Which D. What CABAD7. That is the house, _ windows hasnt been cleaned for months. That is the house, _ the windows hasnt been cleaned for months. That is the house, but _ windows hasnt been cleaned for months. A. it
13、s B. its C. whose D. of whichCDA8. John said hed been working in the office for hours, _ true. John said hed been working in the office for hours, but _ true. A.he was B. it was C. which was D. who was CB 相同之处：相同之处： 当先行词指当先行词指整个主句整个主句的意思时的意思时, 这类这类非限制性非限制性_只只能由能由_或或 _来引导。来引导。两者的区别在于：两者的区别在于：1. which
14、引导的定语从句只能位于引导的定语从句只能位于_, 而而as引导的定语引导的定语从句从句可可位于位于_。（位置）。（位置）2. _常译作常译作“这这”; 而而_常译作常译作“正如正如”, 且多与且多与see, expect, imagine, know, hope等动词连用。（含义）等动词连用。（含义）3. 在定语从句中在定语从句中作主语作主语时时, 若用若用_, 其谓语部分一般有其谓语部分一般有be; 若若谓语谓语是是不含不含be的行为动词时的行为动词时, 要用要用_。4. _引导的定语从句只表示一个引导的定语从句只表示一个众所周知或意料之中众所周知或意料之中的事的事, 而而which不受此限制。不受此限制。5. as常用于固定搭配中常用于固定搭配中:as is often the case (这是常有的事这是常有的事), as we expected(不出所料不出所料); as often happens (正如经常发生的那正如经常发生的那样样)；as is known to all(众所周知众所周知); as has been said before (正如以前所说正如以前所说); as is mentioned above (正如上面所提到的正如上面所提到的)等。等。主句后主句后主句前、中、后主句前、中、后whichasaswhichas定语从句定语从句whichas