Listening to music is fun.这里的fun作什么成分?是宾语还是表语?句子的结构是主谓宾还是主系表?

Listening to music is fun.这里的fun作什么成分?是宾语还是表语?句子的结构是主谓宾还是主系表?
Listening to music is fun.这里的fun作什么成分?是宾语还是表语?句子的结构是主谓宾还是主系表?

Listening to music is fun.这里的fun作什么成分?是宾语还是表语?句子的结构是主谓宾还是主系表?
主系表结构,典型的句子基本结构之一.其它的几种,如下
简单句：由一个主语（或并列主语）和一个谓语（或并列谓语）构成的句子叫简单句.简单句只包含一个主谓结构,各成分都有词或词组担任.
1.主语+谓语(不及物动词) [S + V]
He swims well.他游泳游得很好.
The baby laughed.这个婴儿笑了.
The children are playing.孩子们正在玩.
注意：有些不及物动词之后可以加上一个介词或副词构成动词短语.这时,这个动词短语可以接宾语.
He is waiting for me.他正在等我.
Please look at the blackboard.请看黑板.
2.主语+谓语(及物动词)+宾语 [S+V+O]
这种句型中的动词应为及物动词或者可以后接宾语的动词短语.作宾语的成分常是：名词、代词、动词不定式、动名词或从句.
如：Children often sing this song.孩子们常唱这首歌.
We speak English.我们会说英语.
He is watching TV now.现在他正在看电视.
You can put the books in your bag.你可以把书放在书包里.
3.主语+系动词+表语 [S+V+P]
The bike is new.这辆自行车是新的.
She felt worried.她感到担心.
注意：be是常见的连系动词,除be之外,常见的系动词有：be(是)； get(变得),become(成为),turn(变得),look(看起来),feel(感到),smell(闻起来),taste(尝起来),sound(听起来),seem(似乎) 等.如：
① He became a famous doctor.他成为了一名著名的医生.
② The apple pie tastes really delicious.苹果派吃起来真是好吃.
4.主语+谓语+间接宾语+直接宾语 [S+V+InO+DO]
She showed her friends all her pictures.她把她所有的图画都拿给她的朋友看.
He bought me a new bike.他给我买了一辆新的自行车.
They made the boy a big cake.他们给这个男孩做了一个大蛋糕.
注意：1).这种句型中的及物动词后跟双宾语,指人的间接宾语和指物的直接宾语.也可以把间接宾语放在直接宾语之后,但要加介词for或to.
① My aunt bought me a computer.= My aunt bought a computer for me.我阿姨买给我一台电脑.
My mother bought me a pair of shoes.= ____________________________________________
② I passed him the salt.= I passed the salt to him.我把盐递给他.
Please give me a pen.= ______________________________
Please show me your picture.= ___________________________________
常见的双宾语结构：
动词 ＋ 直接宾语(sth.) ＋ for sb.\x05动词 ＋ 直接宾语＋to sb.
buy sb sth (buy sth for sb )
do sb sth (do sth for sb )
get sb sth (get sth for sb )
make sb.sth (make sth for sb)
pay sb.sth (pay sth for sb)
sing sb sth (sing sth for sb )
\x05give sb.sth (give sth to sb.)
pass sb sth (pass sth to sb)
send sb sth (send sth to sb)
show sb sth (show sth.to sb.)
bring sb.sth (bring sth to sb).
tell sb sth (tell sth to sb )
write sb sth (write sth to sb )
leave sb.sth (leave sth.to sb)
hand sb.sth (hand sth to sb.)
return sb.sth (return sth to sb)
lend sb.sth (lend sth to sb)
2) .当直接宾语为人称代词时,必须用介词结构来表达：
The watch looks nice.Can you show it to me.
5.主语+谓语+宾语+宾语补足语 [S+V+O+OC]
这种句型中的宾语＋ 补语可统称为“复合宾语”.担任宾语补足语的常常是名词、形容词、副词、介词短语、分词、动词不定式等.如：
We can keep it warm.我们会保持它温暖.
Lin Tao asked his father to buy a new bag.林涛要他爸爸给他买一个新书包.
注意:动词let,make,have,see,hear,notice,feel,observe,watch等后面所接的动词不定式作宾语补足语时,应省略不定式标志to.如：
The boss made him do the work all day.老板让他整天做那项工作.
Ling Feng made the baby stop crying.凌峰使婴儿停止了啼哭.

是表语，是主系表结构。表语是特殊的谓语动词，有be(am,is are),get, become,感官动词等，系动词后可以接形容词，名词，介词短语，能带形容词是表语的一大特点。

fun 是表语， 这个结构是主系表

这是系表结构，fun 是表语。