英语名词性从句讲解课件(PPT 16页)

1、名词性从句第1页，共16页。请判断出下列的句子属于哪种从句What I want to do is taking a bath.The news that they won the game spread the whole school.I dont think he is an honest boy.The fact is that he stole the car.Do you know the fact that he stole the car?Do you know the man who is standing over there?It is said that they wo

2、n the game.(主从)(同位语从句)(宾从)(表从)(同位语从句)(定从)(主从)第2页，共16页。主语从句在句中充当主语的从句叫做主语从句。他星期三来这里是肯定的。 That he will come here on Wednesday is certain.注意：从句作主语时，就算是句子意思完整，都要加上从属连词that他星期三是否来这里还不肯定的。Whether he will come here on Wednesday is not certain.注意：主语从句表示“是否” 只用“whether” 而不用“if”第3页，共16页。主语从句主语从句有时用“it”作形式主语，把

3、真正的主语放在后面，以避免头重脚轻。It is known to us that he will come here.用it形式主语的that从句有以下四种不同的搭配：第4页，共16页。It + be + 形容词 that从句It is necessary that 有必要It is important that . 重要的是It is obvious that 很明显It + be + -ed分词 that从句It is believed that 人们相信It is known to us/all that . 众所周知It has been decided that 已经决定第5页，共1

4、6页。It + be + 名词 that从句It is common knowledge that 是常识It is a surprise that . 令人惊奇的是It is a fact that 事实是It + 不及物动词 that从句It appears that 似乎It happens that . 碰巧It occurred to me that 我突然想起第6页，共16页。表语从句在句中充当表语的从句(即放在be动词后面)叫做表语从句。我们的目的是他能认识到错误。Our purpose is that he can realize his faults.注意：引导表语从句的连接

5、词一般不省略。问题是它是否值得做The question is whether it is worth doing注意：表语从句表示“是否” 只用“whether” 而不用“if”第7页，共16页。试区分以下句子Is this museum what you visited?Is this the museum that you visited?Is this museum the one that you visited?注意：这种句子考试时一定要记住这句话：名词前（尤其是单数可数名词前）一定要有限定词。然后把句子变换成陈述句，接着判断句子是属于哪种从句再完成。(表从)(定从)(定从)第8页

6、，共16页。宾语从句在句中充当及物动词或介词宾语的句子叫做宾语从句。我不知道你会来这里I dont know （that） you will come here注意：that在从句中不充当任何成分，在口语或非正式的文体中常常被省去第9页，共16页。我不知道他来不来。我想知道他来还是不来。你们是在谈论着他来还是不来吗？他不在乎天气是否好。I dont know whether/if he will come.I want to know whether he will come or not.Are you talking about whether he will come?He doesnt

7、 care if it isnt a fine day.注意：在宾语从句中，表示“是否”既可以用whether,也可以用if.但是，whether常与or not连用；作介词宾语只用whether; 从句是否定句时一般用if。第10页，共16页。宾语从句中的否定转移我认为他不会来这里I think he wont come here. ( )I dont think he will come here. ( )注意：如果宾语从句是由think, believe, imagine, suppose等词引导的时候，要将从句中的否定形式转移到主句中去。第11页，共16页。宾语从句中用it作形式宾语W

8、e think it our duty that we should help others.I find it impossible that he should finish the work in two days.注意：如果主句中有形容词或名词作宾语补足语时，一般用it来作形式宾语，把从句放在宾补后面。第12页，共16页。同位语从句在句中用作同位语的从句叫做同位语从句。同位语从句一般放在如idea, news, fact, promise, suggestion, belief, truth等含有丰富内涵的词语后面，用来说明前面那个词的具体内容。一般说来，同位语从句都用that来作连接词，而且不能省略。也可用how, when, where等。他给了她一个承诺，他会在两个月后回来。He gave her a promise that he would come back after two months.第13页，共16页。试区分以下句子Do you know the fact that he stole the car?Do you know the fact that they were talking about?注意：1. 如果是定语从句，它的从句肯定是不完整的，关系词肯