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.
同位语从句
在主动复合句中,作同位语的句子,表示与之同位的名词(短语)的实际内容,它的作用相当于名词,对前面的名词(短语)加以补充说明或进一步解释。
①But now the question comes to their minds, “Did she die young because she was a clone?”
②The girls were surprised at the fact that ocean ships can sail up the Great lakes.
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.
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.
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.
同位语
一个名词(或其它形式)对另一个名词或代词进行修饰,限定或说明,这个名词(或其它形式)就是同位语。
①A new household convenience, the icebox, a precursor of the modern refrigerator, had been invented.
②Most of them range in size from $5,000 to $12,500, a welcome sum to many young practitioners.
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.