老师说这个句子中的that为连词 可是and也是连词的啊,这两个连词怎么可能放一起呢?and that different foods provided different amounts of these essentialagents. 完整的这段英文是 twentieth century when it was recogniz

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老师说这个句子中的that为连词可是and也是连词的啊,这两个连词怎么可能放一起呢?andthatdifferentfoodsprovideddifferentamountsoftheseessent

老师说这个句子中的that为连词 可是and也是连词的啊,这两个连词怎么可能放一起呢?and that different foods provided different amounts of these essentialagents. 完整的这段英文是 twentieth century when it was recogniz
老师说这个句子中的that为连词 可是and也是连词的啊,这两个连词怎么可能放一起呢?
and that different foods provided different amounts of these essential
agents.

完整的这段英文是
twentieth century when it was recognized for the first time that food contained constituents
that were essential for human function and that different foods provided different amounts of these essential agents.

老师说这个句子中的that为连词 可是and也是连词的啊,这两个连词怎么可能放一起呢?and that different foods provided different amounts of these essentialagents. 完整的这段英文是 twentieth century when it was recogniz
其实for the first time后面的第一个that开始的句子就是代替前面的it was recognized for the first time中的it,第二个that were essential中的that是定于从句的引导词,先行词是constituents,至于and that中的that也是代替it was recognized for the first time中的it.
那么,这样说来,it was recognized for the first time中的it由两个that的句子所代替,因此要用and把两个句子串连在一起.
你们老师说that是连词,是对的,这时候的that是一个从属连词,是主语从句（题目中的是形式主语it）中的引导词,因此和你说的and（并列连词）同时间使用是没有冲突的.
再举个例子：（主语从句中的it作形式主语）
It is very difficult that he will pass the exam
翻译起来就是：
二十世纪第一次人们认为食物包含许多对人类功能所必须的成份,还有（人们也认为）不同食物提供了不同数量的这些成份.
希望帮到你,若有疑问及时追问,满意敬请采纳,O(∩_∩)O谢谢~~

老师说这个句子中的that为连词 可是and也是连词的啊,这两个连词怎么可能放一起呢?and that different foods provided different amounts of these essentialagents. 完整的这段英文是 twentieth century when it was recogniz 英语语法 关于这个句子的连词种类The prolem is when to set off.这个句子是名词性从句中的表语从句,when是从属连词还是连接副词?我在一本语法书上看过从属连词只有If whether that ,但是又有老师说w 英语中的一个句子 是连词成句有这样几个词：that,not,a,computer,is,game老师讲的是That is not a computer game.我写的是That not is a computer game.老师打的对 可我怀疑老师是不是没看到 谁知道我写的对不 it worries me the way he keeps changing his mind.这个句子中the way之后是什么从句.我觉得这个句子应当是同位语从句，可是为什么又省略了连词that,不是说同位语从句中不可以省略that吗? ：He said that he went to canada a few years ago.老师说这个句子没有错误,为什么?直引变间引为什么不变时态呢? A man is not born in the possession of knowledge 这句话有错吗老师说 in the possession of 的主语是物in possession of 的主语是人可是这句话中的主语是A man .为什么在网上找这个句子都是有the 这个句子是中的when能必为that吗spring is a season when everything comes to life again 请分析这个句子中such that 的用法,是连词?还是定语从句?such is the power of TV that it can make a person famous老师第一次讲说是连词,第二次又说是从句,到底是什么啊?请讲明白一点! 这句话、是什么从句There are many famous predictions that never come true.请问句中的“that”代替什么可是我们老师说、是主语从句 这个词在定语从句中的成分是什么Everything (that) we saw was of great interest to us.就是那个关系代词that,而答案说在这个句子中that是可以省略的,也就是说everything在里边作宾语.可是这个句子的主句 He said that he is a boy .这个句子中的that引导是什么句型? I've never heard so interesting a story __ you told me.A as B that C of which D about which为什么不选that.我们老师讲说that是句子中不缺成分,as是缺成分,这个句子不是定语从句吗?为什么不可以选that啊? 一道高中的英语题——名词性从句It was said ______ was all _____ he said.A.that that,that B.that that,whatC.which it,that D.that what,that老师说答案是A，所以...... 老师说连词后用一般现在时替代将来时＇so that'不是连词吗?它后面怎么是过去式? That is a funny time for breakfast.这个句子中的funny为什么不是填fun? 英语插入语的用法某些插入语是不类似于连词的用法 ?一般说插入语较灵活,去掉后不影响句子.但 这个句子 When he was in America , he stayed with an American family , that is to say , he had a family ..这个里 tha 下面这个句子的时态逻辑上说不通,而这个句子又确定是正确的,Having said that she didn't do a good job,I don't think I'm abler than her.这个句子可以转换为Although I had said that she didn't do a good job,I don't think I that must be a lot more fun than taking bus take为什么要用现在分词这个than 是介词还是连词take bus 是不是句子