主从复合句
含有两套或更多的主谓结构,其中有一个是主要的主谓结构,其他主谓结构从属于它并且担任起句子成分。
①They believe that the computer will finally take the place of human beings.
②He asked me where he could get such medicine.
宾语从句
在主从复合句中充当宾语的句子是宾语从句。
①He told us that they would help us through the whole work.
②We are talking about whether we admit students into our club.
主句
主从复合句中的主干句子,能单独使用或出现的句子。
①They believe that the computer will finally take the place of human beings.
②He asked me where he could get such medicine.
宾语
宾语是指一个动作(动词)的接受者,分为直接宾语和间接宾语两大类,直接宾语指动作的直接对象,间接宾语说明动作的非直接,但受动作影响的对象。一般而言,及物动词后面最少要有一个宾语,而该宾语通常为直接宾语,有些及物动词要求两个宾语,则这两个宾语通常一个为直接宾语,另一个为间接宾语。
①He didn't say anything.
②We sent him a letter.
宾语补足语
在英语中有些及物动词,接了宾语意义仍不完整,还需要有一个其他的句子成分,来补充说明宾语的意义、状态等,称为宾语补足语,简称宾补。
①He proved that theory very important.
②I'd prefer you to leave him alone.
插入语
在一个句子中间插入的一个成分,不作句子的何种成分,也不和句子的何种成分发生结构关系,同时既不起连接作用,也不表示语气,这样的成分是插入语。
①One advantage of his icebox, Moore explained, was something.
②The success of the Colorado beetle in infesting potatoes, for example, seems to be correlated with its high tolerance to alkaloids.
连接词
连接词是连接短语或子句的句子成分。
①That is, they become diseased and die.
②The baby boomers began streaming into the first grade by the mid-1940's and became a flood by 1950.
谓语
谓语对主语动作或状态的陈述或说明,指出“做什么”、“是什么”或“怎么样”。
①It is used by travelers and business people all over the world.
②I made your birthday cake last night.
形式主语
形式主语it并无实际语义,只是为满足语法上的需要,避免句子头重脚轻,它代替的是句子的逻辑主语。
①It is no use reasoning with him.
②It was pretty hard for him to bring up the child on his own.
主语
主语是句子陈述的对象,说明是谁或什么,表示句子说的是"什么人"或"什么事"。
①My school is not far from my house.
②To do such a job needs more knowledge.