英语从属连词一定引导句子吗?从属连词一定引导句子吗,见过连接单个名词和介短的用法.对于从属连词用法一般定义为引导从句,当上述情况是否为省略某种成分的用法.请教高手!

英语从属连词一定引导句子吗?从属连词一定引导句子吗,见过连接单个名词和介短的用法.对于从属连词用法一般定义为引导从句,当上述情况是否为省略某种成分的用法.请教高手!
英语从属连词一定引导句子吗?
从属连词一定引导句子吗,见过连接单个名词和介短的用法.
对于从属连词用法一般定义为引导从句,当上述情况是否为省略某种成分的用法.
请教高手!

英语从属连词一定引导句子吗?从属连词一定引导句子吗,见过连接单个名词和介短的用法.对于从属连词用法一般定义为引导从句,当上述情况是否为省略某种成分的用法.请教高手!
建议不要细抠所谓的规则,否则容易机械化!英语也是语言,宜活学活用,积累重要语言点（一些实实在在的例句,而不是所谓的“规则”）,培养语感.
以下供参考!
从结构上说,英语连接词分两大类：并列连词（coordinating conjunctions）和从属连词（subordinating conjunctions）.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.

既然是从属连词 连接的肯定是句子
连接单个名词的 只是普通连词 如果连接介词短语的 应该是属于省略现象
比如 he used to like play basketball when young
这里 由于 when 和 主句的主语一样 则 省略 后面的 he is

从结构上说，英语连接词分两大类：并列连词（coordinating conjunctions）和从属连词（subordinating conjunctions）。 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 pl...

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从结构上说，英语连接词分两大类：并列连词（coordinating conjunctions）和从属连词（subordinating conjunctions）。 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.

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