Question

英语一个句子可以做哪些成分，介词短语可以做哪些成分？

句子可以做宾补吗？可以做宾语吗？可以做表语吗？那同样介词短语（不是动词不定式）呢？可以的话举出例子。不知道的请不要乱回答误导人。

Answer 1

介词和它的宾语构成介词词组，在句中作状语，表语，补语，定语或介词宾语

Excessive drinking did harm to his health。
celebrities are models for common people
这边2个都是状语

英语中,修饰动词、形容词、副词等的句子成分叫状语（adverbial)。
状语的功用：状语说明地点、时间、原因、目的、结果、条件、方向、程度、方式和伴随状况等。
状语一般由副词、介词短语、分词和分词短语、不定式或相当于副词的词或短语来担当。其位置一般放在句末，但也可放在句首或句中。

1.副词一般在句子中做状语．
He speaks English very well. 他英语说得非常好.
He is playing under the tree.中的under the tree(地点状语)
2. 不定式在句子中可以作目的状语。
I come specially to see you.我专门来看你.
3.介词短语
Ten years ago, She began to live in Dalian.
The boy was praised for his bravery.
4.从句作状语
When she was 12 years old, she began to live in Dalian.
If I am not busy tomorrow, I will play football with you.
5.分词作状语
Having had a quarrel with his wife, he left home in a bad temper。
Inhibited in one direction, it now seems that the Mississippi is about to take another.

Answer 2

句子可以做宾语，如I like to do what I love to do
句子可以做表语，如This is what I like
介词短语可以做宾语、表语、宾补 forword to doing sth

Answer 3

当然可以
l could play computer when l was 18years old