my mother is in the kitchen.这个句子是主系表结构吗?介词短语可以作表语?还是作状语?补语?求详析!

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mymotherisinthekitchen.这个句子是主系表结构吗?介词短语可以作表语?还是作状语?补语?求详析!mymotherisinthekitchen.这个句子是主系表结构吗?介词短语可以作

my mother is in the kitchen.这个句子是主系表结构吗?介词短语可以作表语?还是作状语?补语?求详析!
my mother is in the kitchen.这个句子是主系表结构吗?介词短语可以作表语?还是作状语?补语?
求详析!

my mother is in the kitchen.这个句子是主系表结构吗?介词短语可以作表语?还是作状语?补语?求详析!
in the kitchen做表语
介词(preposition)又叫做前置词,一般置于名词之前.它是一种虚词,一般不重读,在句中不单独作任何句子成分,只表示其后的名词或相当于名词的词语与其它句子成分的关系.
介词后面的名词或相当于名词的词语叫做介词宾语,可作介词宾语的词语通常有:
1)名词或名词性从句,如:
He lives near the institute.
他住在学院附近.
This will give you some idea of what relativity means.
这会给你一些关于相对论意义的概念.
2)代词,如:
I am angry with him.
我生他的气.
3)动名词或动名词短语,如:
I have an idea for solving this problem.
我有一个解决这个问题的想法.
4)不定式(只限于介词but和except),如:
I could do nothing but just sit there and hope.
我除了坐等别无它法.
I can do nothing for them except to send them money.
我除了给他们寄钱以外,什么也不能帮他们.
5)数词,如:
Four from seven leaves three.
7减4余3.
6)形容词,如:
I know it from old.
我早就知道它.
7)副词,如:
I can't stay for long.
我不能久待.
英语介词往往相当于汉语的动词.如:
The policeman helped the old woman across the street.
警察帮助老大娘过马路.(介词across等于“过”)
Are you for it or against it?
你赞成还是反对?(介词for等于“赞成”,介词against等于“反对”)