什么是从句它包括哪几种它们的结构分别是什么样 ？还有That引导的从句

Question

我要尽可能知道它们的一切，越多越好，还有它们该怎么区分如宾语从句和定语从句啊。。。。告诉我网站也可以麻烦各位大侠多加指教

Answer 1

从句的分类
某一成分是句子, 该句称之为从句，
从句共分三大类，性质分为形/名/副。
名词从句有四种，主/宾/表与同位语。
从句需有引导词，引词引导各从句，
从句依附于主句，语序一律从陈述，
从句仍可带从句，以上特征请记住。
从句作主语为主从，作宾语即宾语从句。
系词之后是表从，名词之后辨仔细，
说明名词是定从，名词之内容是同位句。
状语从句共九种，地点、时间与目的，
比较、原因及条件，方式、结果与让步。
注意掌握各引词，复合句子难变易。
1.名词性从句:
⑴What he said is true.(主语从句）
常用从属连词：that/who/whom/whose/what/whether/if/which/when/where/why/ how/whatever等
⑵That is why he was late for school.(表语从句）
常用从属连词：that/who/whom/whose/what/whether/which/when/where/why/how/because/as if等)
⑶He said (that) he would do his best.（宾语从句）
常用从属连词：that/who/whom/whose/what/whether/if/which/when/where/why/ how/whatever等)
⑷The news that our team won the match is inspiring .(同位语从句）
常用that引导;在have no idea句型中，可使用how/when/where等连词来引导)
2 .形容词性从句:
⑴Do you know the man who is standing under that tall tree?(限制性定语从句）
常用 关系词：that/who/whom/whose/
which/when/where/why/ as等)
⑵His father , who works in Jinan , will be back tomorrow .(非限制性定语从句）
常用从属连词：who/whom/whose/which/when/where/ as等)
3.副词性从句
⑴You may stay where /wherever you like .(地点状语从句）
常用从属连词：where/wherever)
⑵As /While /When I was reading a book, he came in.(时间状语从句）
常用从属连词：as/as soon as/after/while/when/since/until/no
sooner...than/hardly...when/whenvere以及every time/directly/immediately/instantly/the
moment/the instant等)
⑶The old worker spoke slowly so that /in order that the studentsmight understand him.(目的状语从句）
常用从属连词：that/ so that/in order that/in case/less/for fear that等)
⑷I don't write so well as she does.(比较状语从句常用句型：as...as/not so...as/more than/more and more/the more...,the more....等)
⑸As/Since he was not at home, I told his mother about it.(原因状语从句）
常用从属连词：as/because/since/nowthat/considering that)
⑹We'll let you use the room on condition that you keep it clean and tidy.
(条件状语从句）
常用从属连词：if/unless/as(so) long as/ suppose(that)/supposing(that)/ on condition that.等)
⑺Most plants need air just as they need water.(方式状语从句）
常用从属连词：as/as if/as though)
⑻We left in such a hurry that we forgot to lock the door.(结果状语从句）
常用从属连词：that/sothat/so...that/such...that/)
⑼It is not true , no matter who (=whoever) may say so .(让步状语从句 ）
常用从属连词：though/although(although不用于句末）/as（as用于倒装句）/whether...or/ even if/even though/no matter+疑问词/疑问词+ever）

回答者：张艳秋abc
试用期 一级

Answer 2

确切说是疑问词引导的宾语从句。主句+连接副词（when)+主语+谓语+其它结构。
比如：i
don't
know(主句）when
he(主语）will
come(谓语）。