句子成分分析
组成句子的各个部分叫做句子成分。它包括:主语、谓语、宾语、定语、状语、表语和宾语补足语等。
1. 主语:
是句子要说明的人或事物,是句子的主体,一般位于句首,由名词、代词、数词或相当于名词的词、短语等充当。
如:
The car is running fast.(名词)
We are students.(代词)
One of my classmates is from Shanghai.(数词)
It's bad manners to spit in public.(不定式)
若不定式短语作主语常用it作形式主语,而把真正的主语(不定式短语)放在句后。
2. 谓语:
说明主语的动作或状态,也是句子的主体部分,一般由动词充当。动词分为实义动词、连系动词、情态动词和助动词。实义动词单独作谓语,连系动词与表语一起构成谓语,情态动词与省略to的不定式构成合成谓语,助动词与动词原形共同构成谓语部分。如:
He works in a factory.(实义动词)
I felt cold.(系动词+表语)
How can I get to the station?(情态动词+实义动词)
Do you speak English?(助动词+实义动词)
They are working in a field.(助动词+实义动词)
【注意】谓语与主语在人称与数方面要相互照应。
3.宾语:
是及物动词所涉及的对象,一般由名词、代词、不定式及动名词等充当。如: He is doing his homework.(名词)
They did nothing this morning.(代词)
She wants to go home.(不定式)
【注意】
①有的动词可接双宾语,间接宾语指人,直接宾语指物。这类动词常见的有:give,buy,lend,pass, tell,leave等。如:
He bought me a book.