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1、-宾语从句的用法-第 4 页宾语从句的用法一、定义:宾语从句就是一个句子的宾语部分是由另一个句子来充当。宾语从句需要用引导词来引导。学好宾语从句,必须过“三关”。即引导词关、语序关、时态关。二、引导词关:引导宾语从句的引导词分为三类,即: 1) 若宾语从句为陈述语气,则用that引导。That在从句中不充当任何成分,也无实义,只是起到连接的作用。 通常在say, think, wish , hope, see, believe, agree, expect, hear , feel等动词后加that,引导宾语从句。连词that在口语中常被省略。 如:He said that he was a
2、student. I thought that he was wrong. 注意:A) 引导宾语从句的that 常可以省略,但下列情况下不能省略。 (1)and连接两个或两个以上的宾语从句,除第一个从句中的that以外,后面从句中的that不能省略。 如:I know (that) he is a good student and that he likes basketball. (2)、that引导的宾语从句作介词宾语时,that不能省略。 如: I know nothing about him except that he is from the south. (3)、主句谓语动词与th
3、at从句之间有插入语,that不可省略。 如:We decided, considering his age, that we would not let him do the job. B) 若宾语后面有宾语补语,则宾语从句要放到补语之后,在宾补前用形式宾语it. 常常这样用的动词有find,feel,consider,make,believe 等。如:He doesnt want it to be known that he is going away. I consider it necessary that he should do it again. C) 宾语从句的否定转移。当主句
4、的谓语动词是think, believe, imagine, suppose, consider, expect, fancy,guess等表示主观看法或认识的动词,并且主句的主语是第一人称而且为一般现在时,从句的否定词一般要转移到主句上来。其反义疑问句一般与宾语从句一致. 如:I dont think he will come to my party.(而不能说成I think he wont come to my party.) I dont believe that he is a good student, is he? 我认为他不是个好学生,不是吗? I dont think you
5、 are right. I dont believe that they have finished their work. 比较:she believes that I am not a good student. 2) 表示一般疑问语气,含有“是否,能否”的意思。由从属连词whether 和if引导,二者通常可以互换。 如:I dont know whether/if I should go to the party tomorrow.注意:在以下情况中,只能用whether。 A) 在动词不定式之前只能用whether 如:I cant decide whether to stay. B
6、) 在whether or not 的固定搭配中,只能用whether。 如:I want to know whether she is a student or not. C) 在介词后,只能用whether。 如:His father is worried about whether he has lost his work . 3) 表示特殊疑问语气由特殊疑问词引导。特殊疑问词包括疑问代词和疑问副词。 A) 疑问代词包括what,who, whom, which,whose, whoever, whatever, whichever等.。 如: Do you know who (whom
7、) they are waiting for? I dont know what they want. John told me which girl he liked most. I want to know whose father that old man is. I will give you whatever you want. You can meet whoever you want to see. You can choose whichever you like. B) 疑问副词包括when, where, how, why, whenever,wherever,howeve
8、r等。 如: Could you tell me how we can get to the station? He told me when we should go to the airport. I told him where he should go. I dont know why he is so angry. You can come whenever you are free. You can go wherever you like. 4)另外:宾语从句可做动词宾语,介词宾语,及某些形容词甚至是副词的宾语. 例如: 1、He said that he was a stude
9、nt.(that从句是said的宾语) 2、宾语从句作介词的宾语,常常有两种情况: A) wh-类的介词宾语从句 如:We are talking about where we should go.(疑问代词where从句作介词about的宾语) The teacher is quite satisfied with what you have done.(疑问代词what引导的宾语从句时介词with的宾语) B)用that,whether引导的介词宾语从句如:except,but,besides三个介词后常常可以见到that引导的宾语从句。I know nothing about my ne
10、w neighbor except that he works in a school.We are talking about whether we should go camping. 3、常常用来引导宾语从句的形容词有:sure, certain, glad, please, happy, sorry, afraid, satisfied, surprised。That常常可以省略。如:I am sure (that) I will pass the exam. Mary was pleased (that) she had passed the final exam. (that引导的
11、宾语从句是形容词pleased的宾语) 4、I will find out where he has gone(where引导的宾语从句作副词out的宾语). 三、语序关 作宾语从句的句子不管原来是什么语序,在充当宾语从句时都要用陈述语序,即:“引导词+主语+谓语+宾语+其他”。 如:1、Tom said. +He is reading a book. Tom said that he was reading a book. 2、He asks me. +Are they playing a game? He asks me if/whether they are playing a game
12、.(宾语从句,陈述语序) 3、Where is the hospital? He told me. He told me Where the Hospital was. 4、I dont know who he is 四、时态关 宾语从句的时态。 宾语从句的时态受主句的限制,既: 1)主句是一般现在时态,从句根据实际情况而定。 如: I think he is a clever boy. I think he has gone to Beijing. I think he bought the book yesterday. 主句是一般过去时态,从句必须用相应的过去的时态。如果从句的动作发生在
13、主句之前,则从句要用过去完成时态。 如:he said he was reading. He said he would go to Beijing tomorrow. He forgot whether he had locked the door. 对比理解下列几组句子: 例:1)She says that she is a student. She said that she was a student. 2)She says that she will fly to Japan in a week. She said that she would fly to Japan in a w
14、eek. 3)She says that she has finished her homework already. She said that she had finished her homework already. 4)She says that she can sing a song in English. She said that she could sing a song in English. 3、当宾语从句叙述的是客观事实、真理、自然现象、名言警句、谚语等,不管主句是什么时态,从句一律用一般现在时。 例:The teacher said that the earth goes round the sun.(客观真理仍然用一般现在时) He told me that Japan is an island country.(客观事实)