英语句子的成分可分为主语、谓语、宾语、宾语补足语、表语、定语、状语、同位语及独立成分等。 英语句子成分一：主语
一、主语(subject): 句子说明的人或事物。
The sun rises in the east. (名词)
He likes dancing. (代词) Twenty years is a short time in history. (数词)
Seeing is believing. (动名词)
To see is to believe. (不定式)
What he needs is a book. (主语从句)
It is very clear that the elephant is round and tall like a tree. (It形式主语，主语从句是真正主语)
英语句子成分二：谓语
二、谓语(predicate):说明主语的动作、状态和特征。
We study English.
He is asleep. 英语句子成分三：表语
表语(predicative):系动词之后的成分，表示主语的性质、状态和特征。 He is a teacher. (名词)
Seventy-four! You don’t look it. (代词)
Five and five is ten. (数词)
He is asleep. (形容词)
His father is in. (副词)
The picture is on the wall. (介词短语)
My watch is gone / missing / lost. (形容词化的分词)
To wear a flower is to say “I ’m poor, I can’t buy a ring. ” (不定式)
The question is whether they will come. (表语从句)
英语句子的成分可分为主语、谓语、宾语、宾语补足语、表语、定语、状语、同位语及独立成分等。 英语句子成分一：主语
一、主语(subject): 句子说明的人或事物。
The sun rises in the east. (名词)
He likes dancing. (代词) Twenty years is a short time in history. (数词)
Seeing is believing. (动名词)
To see is to believe. (不定式)
What he needs is a book. (主语从句)
It is very clear that the elephant is round and tall like a tree. (It形式主语，主语从句是真正主语)
英语句子成分二：谓语
二、谓语(predicate):说明主语的动作、状态和特征。
We study English.
He is asleep. 英语句子成分三：表语
表语(predicative):系动词之后的成分，表示主语的性质、状态和特征。 He is a teacher. (名词)
Seventy-four! You don’t look it. (代词)
Five and five is ten. (数词)
He is asleep. (形容词)
His father is in. (副词)
The picture is on the wall. (介词短语)
My watch is gone / missing / lost. (形容词化的分词)
To wear a flower is to say “I ’m poor, I can’t buy a ring. ” (不定式)
The question is whether they will come. (表语从句)