并列复合句
并列复合句含有两套或者更多相互并列的主谓结构的句子。
①Water has weight; air has weight too, but it is very light.
②Heat is energy, so is electricity.
并列句
并列句是构成并列复合句的简单句。
①I like action movies but I don't like thrillers.
②Take the chance, or else you will regret it.
主语从句
在主从复合句中充当主语的句子是主语从句。
①It is certain that he will win the match.
②What caused the accident remains unknown.
状语从句
在主从复合句中,在句中作状语、起副词作用的句子,可以修饰谓语、非谓语动词、定语、状语或整个句子。
①Sometimes we teach our children the way our parents have taught us.
②No matter how hard he tried, she could not change her mind.
表语
表语是用来说明主语的身份、性质、品性、特征和状态的成分。
①That remains a puzzle to me.
②The sun is up.
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.
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.
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.
系动词
本身有词义,但不能单独用作谓语,后边必须跟表语,构成系表结构说明主语的状况、性质、特征等情况。
①That is air wrung dry of moisture.
②There seem to have been several periods within the last tens of thousands of years.
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.
状语
状语是谓语里的另一个附加成分,从情况、时间、处所,方式、条件、对象,肯定、否定、范围和程度等方面对谓语中心(或者整个句子)进行修饰或限制。
①In a way, any hypothesis is a leap into the unknown.
②It extends the scientist's thinking beyond the known facts.