初三定语从句.doc

初三定语从句（一） 一、认识主句和从句： I met someone who said he knew you我碰到了说自己认识你的一个人。I met someone是主句。who said he knew you是定语从句。二、认识先行词和引导词：I met someone who said he knew youman是先行词；who是引导词。三、引导词要紧跟先行词：在初学阶段，要养成习惯，记住：“引导词要紧跟先行词”。在以后深入学习的时候，会发现先行词和引导词的中间被某些成分隔开。但是，由于你已经有了扎实的基础了，你还是能够分辨的。四、先行词和引导词的搭配：先行词为人，引导词为who, whom, whose。先行词为事或物，引导词为which, that。五、who, whom, whose的区分用法：“who”在定语从句中做主语，也可做宾语（非正式文体中）。“whom” 在定语从句中做宾语，引导词在从句中做宾语时，可以省略。“whose” 在定语从句中做定语。“whose”做引导词时，它的先行词可以是人也可以是事物。六、which, that的区分用法：“which”和“that”有时可以互用。（一）以下情况多用“that”：1、先行词是不定代词all, few, little, much, something, nothing, anything等时。2、先行词被序数词或形容词最高级修饰时。3、先行词被all, any, every, few, little, no, some修饰时。4、先行词被the only, the very, the same, the last修饰时。5、先行词既有人又有物时。6、当主句已经有who，为避免重复时。（二）以下情况不用“that”： 在非限制性七、举例说明： I met someone who said he knew you我碰到了说自己认识你的一个人。 （who在从句中作主语）Yesterday I met the girl who studies in Beijing.昨天我遇到在北京读书的那个女孩。Succeed will come to him who is honest and diligent.成功将归于诚实而勤奋的人。He is the man who I saw in the park yesterday.他就是我昨天在公园里见到的那个人。（who在从句中作宾语）He is the man whom I saw in the park yesterday.他就是我昨天在公园里见到的那个人。（whom在从句中作宾语）作宾语用的引导词可以省略，因此上面的句子可以改写如下：He is the man I saw in the park yesterday.Please pass me the book whose cover is green. 请递给我那本绿皮的书。They rushed over to help the man whose car had broken down. 那人车坏了，他们跑过去帮忙。 They needed a plant whichdidnt need as much water as rice.他们需要一种不像水稻那么需要水的作物。（作主语）The farm (which) we visited yesterday is located in the suburb of Beijing.我们昨天参观的农场位于北京郊区。（作宾语，可省略。）Have you everything (that) you need?你要的东西都有了吗？（作宾语，可省略。）Is there anything (that) I can do for you?有什么事要我做吗？（作宾语，可省略。）This is the best film (that) I have ever seen.这是我看过的电影中最好的一部。（作宾语，可省略。）定语从句中，引导词不用“that”。定语从句练习（一） 1.I shall remember the day _ we met first.A. that B. which C. where D. when2.Can you lend me the dictionary _ the other day?A. about that you talked B.that you talkedC. which you talked D. that you talked about3.The book _ isnt in the library.A. what I need B. I needC. that I need it D. which I need it4.It was raining, _ was a pity.A. what B. that C. which D. that which5.He studied hard at school when he was young _ contributes to his success in later life.A. as B. therefore C. which D. so that6.We can separate the mixture into the pure chemical compounds _ it is composed.A. of which B. of that C. in which D. from which7.The size of the audience, _ we had expected, was well over one thousand.A. whom B. who C. as D. that8.He failed his exam; _ proves that he wasnt working hard enough.A. that B. which C. such D. what9.One of the most beautiful natural wonders in the United States is the Grand Canyon, _ located in northwestern Arizona.A. and B. where C. is D. which is10.Do you know the worker _?A. whom I often talk B. with who I often talkC. I often talk with D. that I often talk1.Electric current can produce heat _ we can weld metals.A. which B. in which C. by means of which D. what2.Heat has many effects, _ we are familiar with through everyday experience.A. most of which B. in whichC. that D. that3.Ultra-sonic sound is _ is inaudible to human ear.A. such as B. the same as C. which D. that4.Language builds a bridge of communication _ society could not ever exist.A. unless B. without that C. without which D. lest5.Diesel engines are generally used for heavy-duty work _ the weight and size of the engine are not important.A. which B. when C. where D. that6.A magnetic field may be represented in _ manner _ an electric field.A. such as B. the same asC. such that D. the same which7.Weve all heard of Thomas Edison, _ invented the electric light and many other things.A. the man who B. thatC. which D. a man who8.An aircraft engine consists of thousands of parts, _ has its importance.A. which B. that C. each of which D. each9.I know of a number of occasions _ people