从属连词可分为三大类(20201124130246).docx

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从属连词可分为三大类:
1、 that(无词义,不做成分)
if , whether(表达是否的意义,但不做句子成分)
2、连接代词: who,whom,whose,what,which ,whatever, whoever, whichever (有词义,在句子中可作主语、表语、宾语)
3、连接副词: when,where,why,how,how many,how long ,how far ,however ,whenever ,wherever(有词义,作从句的状语)
用法:
从结构上说,英语连接词分两大类:并列连词和从属连词。

?
并列连词连接两个或两个以上地位平等的字、词组或分句。

例如:
(1)Air and water are indispensable to me.
(2)She likes going out with friends or playing outdoor games.
(3)Most workers have a good income, so they look very happy.
从属连词连接两个或两个以上的分句,形成复杂句中的从属分句。

例如:
(4)He said that he did not want to go .
(5)Many things have happened since I last saw him.
(6)You may come if you want to.
从属连词用来连接各种从句。

until(till)直到,在用until表达时间状语的句子中,主句中的动词是要十分小心去选择
的。

如动词是持续行动词,它要用肯定句,如:
I studied hard until 12 o'clock last night.
如果动词是瞬间截止性动词,则要用否定句,如:
He didn't go to bed until his mother came back.
由 since,for,by,before,来引导的时间状语从句。

since 引导的时间状语是动作的开始时间,如:
I have studied English since 1990.
而 by 引导的时间状语通常是动作的结束时间,如:
I had learned 25 English songs by the end of last term.
从属连词语法分类:
种类语法作用连词举例?
引原因状从句Because, since
引条件状从句If, unless, as long as
引目的状从句So that
引果状从句So⋯that
引方式状从句As, just as, as if
Though, although, even?
从属though, no matter what,?
引步状从句however, no matter how,?
whoever, no matter who,?
wherever, no matter where
As⋯as, not so ⋯as, than,?
引比状从句less ⋯than, the more ⋯the?
more
Who, whom, whose, which,?
引名性从句
that, when, where, why。