到底神马时候用that 和what (同位语从句中)对比:) I have no idea what has happened to her .(2) Suddenly the thought came to him that he could go blind.这两句中what 和that 可以互换吗?

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到底神马时候用that 和what (同位语从句中)
对比:) I have no idea what has happened to her .
(2) Suddenly the thought came to him that he could go blind.
这两句中what 和that 可以互换吗?

不能替换,（1）句中what在同位语从句中作主语（从句缺了主语）
（2）句中that只起连接作用（因为从句中不缺成分,也没有疑问）

当然不能互换, 这两个都可以引导各种各样的从句, 从句里that有时作成分比如定语从句, 有时不做成分,比如同位语宾语从句. 分不同的从句不同情况, 而what一般都做成分. 建议你买无敌英语语法, 把从句部分从头到尾好好看一遍就能搞得很透彻

用what时，从句缺成分，如上句 I have no idea what has happened to her .what作从句的主语，有时也做宾语或表语，因此从句如果缺主语、宾语或表语，就用what;that引导同位语从句时不作成分，只起连接作用。如上句that he could go blind，去掉that，意义完整he could go blind，因此从句意义完整，不缺主语、...

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用what时，从句缺成分，如上句 I have no idea what has happened to her .what作从句的主语，有时也做宾语或表语，因此从句如果缺主语、宾语或表语，就用what;that引导同位语从句时不作成分，只起连接作用。如上句that he could go blind，去掉that，意义完整he could go blind，因此从句意义完整，不缺主语、宾语或表语，就用that.

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到底神马时候用that 和what (同位语从句中)对比:) I have no idea what has happened to her .(2) Suddenly the thought came to him that he could go blind.这两句中what 和that 可以互换吗? 同谓语句中what和that区别到底什么情况不用that而用what 纳闷 一般从句里都分不清 明天考试要考同谓语先说说 数学中神马时候用或神马时候用和俩连接两个数字 “神马”和“鸡火马”是同一类吗 s和m到底是神马 关于从句的问题 求大神指点!1.-Do you remember the village ___ we visited in 2010? -Yes,I do . A.what B./ C.where D.when 答案是B 为神马不是C 什么情况下选C 2.在从句中神马时候用that where which what , where which引导 这货是神马?到底是神马? 重句where 和 that用法在重句里面 到底哪些时候该用WHERE 那些地方改用THAT 或者WHO . what?神马意思神马意思? that和what能充当句子中的成分吗到底是that还是what能充当句子中的成分?到底是咋回事尼(⊙o⊙)? 到底神马是什么意思 到底写神马事! 神马到底什么意思? 神马时候天气回暖? 神马时候最黑? 太阳神马时候爆炸? 地球神马时候爆炸 英语中the和this/that到底怎么区分啊 我是初一英语上册的 比如What color is the beg?这个为什么要用the?